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<SEC-DOCUMENT>0000005907-97-000020.txt : 19970401
<SEC-HEADER>0000005907-97-000020.hdr.sgml : 19970401
ACCESSION NUMBER:		0000005907-97-000020
CONFORMED SUBMISSION TYPE:	10-K
PUBLIC DOCUMENT COUNT:		23
CONFORMED PERIOD OF REPORT:	19961231
FILED AS OF DATE:		19970331
SROS:			BSE
SROS:			CSX
SROS:			NYSE
SROS:			PHLX
SROS:			PSE

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			AT&T CORP
		CENTRAL INDEX KEY:			0000005907
		STANDARD INDUSTRIAL CLASSIFICATION:	TELEPHONE COMMUNICATIONS (NO RADIO TELEPHONE) [4813]
		IRS NUMBER:				134924710
		STATE OF INCORPORATION:			NY
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		10-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-01105
		FILM NUMBER:		97571837

	BUSINESS ADDRESS:	
		STREET 1:		32 AVENUE OF THE AMERICAS
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10013
		BUSINESS PHONE:		2123875400

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	AMERICAN TELEPHONE & TELEGRAPH CO
		DATE OF NAME CHANGE:	19920703
</SEC-HEADER>
<DOCUMENT>
<TYPE>10-K
<SEQUENCE>1
<DESCRIPTION>FORM 10-K
<TEXT>

                                   FORM 10-K

                       SECURITIES AND EXCHANGE COMMISSION

                              WASHINGTON, DC 20549

              (X) ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF
                       THE SECURITIES EXCHANGE ACT OF 1934

                   For The Fiscal Year Ended December 31, 1996

                                       OR

            ( ) TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d)
OF
                       THE SECURITIES EXCHANGE ACT OF 1934

              For The Transition Period From _________ to _________

                          Commission File Number 1-1105

                                   AT&T CORP.

          A NEW YORK                                I.R.S. EMPLOYER
          CORPORATION                                NO. 13-4924710

            32 Avenue of the Americas, New York, New York 10013-2412

                          Telephone Number 212-387-5400

Securities registered pursuant  to  Section   12(b) of the Act: See attached
                                                                 SCHEDULE A.
Securities registered pursuant to Section 12(g) of the Act:  None.

Indicate by check mark whether the registrant (1) has filed all reports required
to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during
the  preceding 12 months (or for such  shorter  period that the  registrant  was
required  to file  such  reports),  and  (2) has  been  subject  to such  filing
requirements for the past 90 days. Yes....x.... No........

Indicate by check mark if disclosure of delinquent  filers  pursuant to Item 405
of Regulation  S-K is not contained  herein,  and will not be contained,  to the
best of registrant's  knowledge,  in definitive proxy or information  statements
incorporated by reference in Part III of this Form 10-K or any amendment to this
Form 10-K. ( )

At February 28,  1997,  the  aggregate  market value of the voting stock held by
non-affiliates was $64,782,019,250.

At February 28, 1997, 1,624,837,277 common shares were outstanding.

                       DOCUMENTS INCORPORATED BY REFERENCE

(1) Portions of the registrant's  annual report to security
holders for the year ended December 31, 1996 (Part II)

(2) Portions of the registrant's definitive proxy statement dated April 1, 1997,
    issued in connection with the annual meeting of shareholders (Part III)

<PAGE>

                                   SCHEDULE A

Securities registered pursuant to Section 12(b) of the Act:

                                                    Name of each
                                                  exchange on which
Title of each class registered

Common Shares                        #    New York, Boston, Chicago,
  (Par Value $1 Per Share)          ##    Philadelphia and Pacific Stock
                                     #    Exchanges

Thirty-Seven Year 4-3/4% Debentures, #
  due June 1, 1998                   #
                                     #
Thirty-Six Year 4-3/8% Debentures,   #
  due May 1, 1999                    #
                                     #
Thirty-Three Year 6% Debentures,     #
  due August 1, 2000                 #
                                     #
Thirty-Five Year 5-1/8% Debentures,  #   ##New York Stock Exchange
  due April 1, 2001                  #
                                     #
Ten Year 7-1/8% Notes,               #
  due January 15, 2002               #
                                     #
Ten Year 6-3/4% Notes,               #
  due April 1, 2004                  #
                                     #
Ten Year 7% Notes,                   #
  due May 15, 2005                   #
                                     #
Twelve Year 7-1/2% Notes,            #
  due June 1, 2006                   #
                                     #
Twelve Year 7-3/4% Notes,            #
  due March 1, 2007                  #
                                     #
Thirty Year 8-1/8% Debentures,       #
  due January 15, 2022               #
                                     #
Medium Term Note 8.2%,               #
  due February 15, 2005              #
                                     #
Thirty Year 8.35% Debentures,        #
  due January 15, 2025               #
                                     #
Thirty-Two Year 8-1/8% Debentures,   #
  due July 15, 2024                  #
                                     #
Forty Year 8-5/8% Debentures,        #
  due December 1, 2031               #


<PAGE>


                                TABLE OF CONTENTS


                                     PART I

Item
Description                          Page

 1.  Business...............................................................  1

 2.  Properties............................................................. 10

 3.  Legal Proceedings...................................................... 10

 4.  Submission of Matters to a Vote of Security-Holders.................... 11


                                     PART II

                                   Description

 5.  Market for Registrant's Common Equity and Related Stockholder
       Matters.............................................................. 13

 6.  Selected Financial Data................................................ 13

 7.  Management's Discussion and Analysis of Financial Condition and
       Results of Operations................................................ 13

 8.  Financial Statements and Supplementary Data............................ 13

 9.  Changes in and Disagreements with Accountants on Accounting
       and Financial Disclosure............................................. 13

                                    PART III

                                   Description

10.  Directors and Executive Officers of the Registrant..................... 13

11.  Executive Compensation................................................. 13

12.  Security Ownership of Certain Beneficial Owners and Management ........ 13

13.  Certain Relationships and Related Transactions......................... 13

                                     PART IV

                                   Description

14.  Exhibits, Financial Statement Schedules, and Reports on Form 8-K....... 14

See page 12 for "Executive Officers of the Registrant."

<PAGE>

                                     PART I
ITEM 1. BUSINESS.

GENERAL

         AT&T Corp. ("AT&T" or the "Company") was incorporated in 1885 under the
laws of the  State of New York and has its  principal  executive  offices  at 32
Avenue  of the  Americas,  New  York,  New  York  10013-2412  (telephone  number
212-387-5400). Internet users can access information about AT&T and its services
at http://www.att.com/.

         AT&T   is   currently   a   major   participant   in  two   industries:
telecommunications   and   financial   services.   AT&T  is  among  the  world's
communications  leaders,  providing  voice,  data and  video  telecommunications
services to large and small businesses,  consumers and government entities. AT&T
and  its  subsidiaries  furnish  regional,  domestic,  international  and  local
communication transmission services. AT&T's wholly owned subsidiaries, including
AT&T Wireless  Services,  Inc.,  provide  cellular  telephone and other wireless
services.  AT&T also provides billing,  directory,  and calling card services to
support its communications business as well as offering a general purpose credit
card through its wholly owned  subsidiary,  AT&T  Universal  Card Services Corp.
("AT&T Universal Card Services").

         On  September  20,  1995,  AT&T  announced  a  plan  to  separate  (the
"Separation")  into three publicly held stand-alone  global companies focused on
serving certain core  businesses:  communication  and  information  services and
general  purpose  credit card (to be carried on by the new AT&T,  which includes
AT&T  Universal  Card  Services),  communications  systems and technology (to be
carried on by Lucent Technologies Inc.  ("Lucent")),  and  transaction-intensive
computing  (to be carried on by NCR  Corporation  ("NCR",  formerly  AT&T Global
Information Solutions Company)).

         AT&T  completed  the  Separation  in  1996.  AT&T  distributed  to  its
shareowners all of the shares AT&T owned of Lucent on September 30, 1996 and all
of the shares of NCR on December 31, 1996. These  distributions were tax free to
shareowners,  except to the extent cash was received for fractional  shares. The
Lucent distribution had been preceded by the initial public offering of 17.6% of
Lucent shares.  In addition,  on October 1, 1996, AT&T completed the sale of its
majority  interest in AT&T  Capital  Corporation,  in which AT&T  received  $1.8
billion in cash, recognizing a $162 million after-tax gain.

COMMUNICATION AND INFORMATION SERVICES

         AT&T's  communication and information  services business  addresses the
needs of consumers, large and small businesses, the Federal government and state
and local  governments for voice,  data and video  telecommunications  services.
Business  units  within this group  provide  regular  and custom  long  distance
communications services, data transmission services, 500 services,  toll-free or
800 and 888 services,  900 services,  private line  services,  software  defined
network  services   ("SDN"),   integrated   services  digital  network  ("ISDN")
technology based services, and electronic mail, electronic data interchanges and
enhanced facsimile services.

         AT&T also  provides  special long  distance  services,  including  AT&T
Calling Card  services,  special  calling plans and the  Company's  domestic and
international operator services. AT&T provides communications services

<PAGE>

internationally,   including  transaction  services,  global  networks,  network
management  and value  added  network  services  (i.e.,  services  offered  over
communications   transmission   facilities  that  employ   computer   processing
applications).

         AT&T    provides    interstate    and    intrastate    long    distance
telecommunications   services  throughout  the  continental  United  States  and
provides, or joins in providing with other carriers, telecommunications services
to and from Alaska, Hawaii, Puerto Rico and the Virgin Islands and international
telecommunications  services to and from  virtually all nations and  territories
around the world.

         In  the  continental   United  States,   AT&T  provides  long  distance
telecommunications  services  over  its  own  network.  Virtually  all  switched
services are computer  controlled and digitally switched and interconnected by a
packet  switched   signaling   network.   Transmission   facilities  consist  of
approximately  2 billion  circuit-miles  using  lightwave,  satellite,  wire and
coaxial cable and microwave radio technology.  International  telecommunications
services are provided via multiple  international  transoceanic  submarine cable
(primarily  lightwave)  systems  and  via  international   satellite  and  radio
facilities.

         AT&T has also  begun  providing  a variety of new  services,  including
online services,  internet access and local telecommunications  services. Online
and internet access services include AT&T WorldNet* Service, a service providing
dedicated and dial-up access to the internet, AT&T Easy World Wide Web* Service,
an internet  web site  creation  and hosting  service,  custom web site  hosting
services,  and AT&T SecureBuy*  Service,  an Internet  transaction  service that
simplifies buying and selling on the Internet.

         Following   passage  of  the   Telecommunications   Act  of  1996  (the
"Telecommunications  Act"),  AT&T has applied for  permission  to provide  local
service in all 50 states.  At December 31, 1996, AT&T had received  authority to
provide service in 42 states and anticipates  that it will receive the remaining
approvals   as  the  other   states  take  the  actions   contemplated   by  the
Telecommunications  Act.  In the fourth  quarter of 1996,  AT&T began  providing
local  telephone  service to  residential  customers  on a  controlled  basis in
Sacramento,  California. In addition, in February 1997 AT&T began offering local
telephone  service  to  business  customers  throughout  California  as  well as
offering in 45 states AT&T Digital  Link,  which enables  business  customers to
place local calls over high capacity lines connected directly to AT&T's existing
switches.

         AT&T  Solutions,  Inc.,  established in 1995,  assists  corporations in
global  network and computer  management.  AT&T  Solutions  designs,  builds and
operates corporate clients' computer networks, designs software and manages data
centers for its clients.

AT&T is one of the world's largest  wireless  service  providers.  In the United
States,  AT&T holds licenses to operate  systems  providing  broadband  wireless
services  covering markets with a population of over 200 million  nationwide and
messaging and air-to-ground services throughout the country. The
- ------------
* Service Mark
<PAGE>

services   provided  by  AT&T   currently   include   cellular,   messaging  and
air-to-ground communications.

         In addition, AT&T has purchased (primarily in auctions conducted by the
Federal Communications  Commission ("FCC")) wireless broadband PCS (or "personal
communication  services") licenses covering markets with a population of over 70
million.  AT&T is required by the FCC to provide adequate  broadband PCS service
to at least  one-third of the population in its licensed areas within five years
of being  licensed and two-thirds of the population in its licensed areas within
ten years of being  licensed.  The  licenses are granted for ten year terms from
the  original  date of issuance  and may be renewed by AT&T by meeting the FCC's
renewal criteria and upon compliance with the FCC's renewal procedures.

         AT&T has  created  service  clusters  in major  metropolitan  areas and
linked its and other service  providers systems into a network which permits its
wireless  cellular  subscribers  to both place and receive  calls  anywhere they
travel in areas  served by the  network,  even if the local  wireless  telephone
service is not provided by AT&T.  AT&T is now integrating  other  communications
technologies,  such as PCS, into the network.  AT&T will continue to explore the
use of emerging  technologies  to expand the reach of the network and to provide
additional services (especially data and internet services).

         AT&T also offers one-way messaging systems such as paging services.  As
of  December  31,  1996,  the Company  had over 1.1  million  messaging  service
subscribers. The majority of these subscribers are in locations where AT&T holds
cellular or PCS licenses.

         AT&T's wireless services are conducted  primarily through  subsidiaries
of AT&T Wireless Services,  Inc. (formerly McCaw Cellular  Communications,  Inc.
("McCaw")),  which  was  merged  with a  special-purpose  subsidiary  of AT&T in
September 1994. At that time,  McCaw owned 52% of LIN  Broadcasting  Corporation
(which held cellular and broadcast television  properties),  which in turn owned
100%  of  LIN  Television  Corporation.   In  December  1994,  LIN  Broadcasting
Corporation  distributed to its  shareholders all of the stock of LIN Television
Corporation, so that upon the distribution AT&T became the direct owner (through
its  wholly  owned  subsidiaries)  of  52%  of LIN  Television  Corporation.  In
September  1995, AT&T acquired the remaining 48%  publicly-held  interest in LIN
Broadcasting Corporation at an aggregate price of approximately $3.3 billion.

         AT&T has  established a number of  international  alliances to increase
the reach and scope of AT&T's  network  over time and has  invested  in  certain
countries  in order to  increase  the  range of  services  AT&T  offers in those
countries.  For  example,  AT&T  founded the  WorldPartners  alliance in 1993 to
provide  multinational  customers with seamless  telecommunications  and related
services. As of the end of 1996,  WorldPartners  included 30 members who provide
services  to  multinational  customers  in North  America,  Europe and Asia.  In
addition,  in 1996 AT&T began  offering  business and  consumer  services in the
United Kingdom and in early 1997 AT&T's joint venture in Mexico,  Alestra, began
offering long distance  service.  AT&T also has an interest in several  wireless
communications  companies  outside  of the  United  States,  including  cellular
operators licensed to serve Hong Kong, Columbia and parts of India.


<PAGE>

AT&T UNIVERSAL CARD SERVICES

         AT&T Universal  Card Services began  operations in early 1990. The AT&T
Universal  Card is a  combined  general-purpose  consumer  credit  card and AT&T
Calling Card that at year-end had managed receivables in excess of $13.5 billion
in 1996, $14.1 billion in 1995, $12.3 billion in 1994, $9.1 billion in 1993, and
$6.6 billion in 1992. The AT&T Universal Card is offered  directly  through AT&T
Universal  Financial Corp., a Utah industrial loan company,  and Universal Bank,
N.A., in Columbus,  Georgia,  which are both wholly owned by AT&T,  and under an
affinity relationship with Columbus Bank and Trust Company in Columbus, Georgia,
a subsidiary of Synovus  Financial Corp.  AT&T Universal Card Services  provides
marketing  and  customer  support  for the AT&T  Universal  Card  program and it
purchases cardholder receivables generated by the AT&T Universal Card program.

         Some  seasonality  exists in the consumer credit card industry,  with a
higher number of purchases  occurring during the year-end holiday season.  Based
on the number of cardholder accounts,  the AT&T Universal Card program is one of
the largest bankcard/credit card programs in the United States.

LEGISLATIVE AND REGULATORY DEVELOPMENTS

Telecommunications Act of 1996

         In  February   1996,  the   Telecommunications   Act  became  law.  The
Telecommunications  Act,  among  other  things,  was  designed  to foster  local
exchange  competition  by  establishing  a  regulatory  framework  to govern new
competitive  entry in local and long  distance  telecommunications  services and
requiring  incumbent local exchange  carriers  ("LECs"),  including the Regional
Bell Operating Companies ("RBOCs"),  to implement a checklist of conditions that
would support local exchange  competition.  These conditions  include  requiring
incumbent  LECs to provide to competing  service  providers  (i) local  exchange
services  for resale at  wholesale  rates,  (ii)  interconnection  and access to
unbundled  network elements at any technically  feasible point and at cost-based
rates, (iii) telephone number portability for customers changing carriers,  (iv)
dialing parity for customers and (v) access to rights of way.

         The  Telecommunications Act also permits an RBOC to petition the FCC at
any time for  permission to provide  interexchange  services  originating in any
state in its region. The FCC must review such request within 90 days, but cannot
approve  such a request  unless  (i)  approval  is  consistent  with the  public
interest,  convenience  and  necessity;  (ii)  the FCC has  consulted  with  the
Department  of Justice  ("DOJ")  and given the DOJ's views  substantial  weight;
(iii)  the  RBOC  has  implemented  the   Telecommunications  Act  checklist  of
conditions  throughout such state; and (iv) either (A) the RBOC has entered into
a binding interconnection agreement, approved by the relevant state, with one or
more  unaffiliated  competing  providers of telephone service to residential and
business  subscribers which are offered either exclusively or predominantly over
such competitors' own facilities,  or (B) the RBOC has received no such requests
for interconnection within the statutory prescribed time period.

In August 1996, the FCC adopted rules and regulations (the "Implementing Rules")
to implement the local  competition  provisions of the  Telecommunications  Act,
including with respect to the terms and conditions of  interconnection  with LEC
networks and the standards  governing the purchase of unbundled network elements
and wholesale services from LECs. The Implementing
<PAGE>

Rules rely on each state to develop the specific  rates and  procedures  in such
state within the framework  prescribed by the FCC for developing  such rates and
procedures.

         For  example,   the  Implementing  Rules  identify  a  minimum  set  of
technically  feasible  points  of  interconnection  that an  incumbent  LEC must
provide;  identify a minimum set of network elements that must be made available
by an incumbent  LEC on an unbundled  basis,  without  restriction;  and require
incumbent LECs to provide nondiscriminatory access to operations support systems
for ordering, provisioning, maintenance and repair.

         In addition, the Implementing Rules establish a methodology that states
must use for determining the wholesale rates that LECs must provide to resellers
of their  services and which is based on retail rates less  marketing,  billing,
collection and other avoided or avoidable  costs. In addition,  the Implementing
Rules  establish  a default  discount in the range of 17-25% that states may use
pending implementation of this methodology.

         Finally,  the  Implementing  Rules  require  states to set  prices  for
interconnection  and unbundled  network  elements  pursuant to a forward looking
economic cost pricing  methodology  which is based on the Total Element Long-Run
Incremental  Cost  ("TELRIC") of providing a particular  network  element plus a
reasonable share of forward-looking joint and common costs. If states are unable
to conduct a cost study to determine  such rates within the statutory time frame
for  arbitrating  interconnection  disputes,  the  Implementing  Rules establish
default ranges or ceilings for unbundled network elements.

Although the FCC deferred interstate access charge reform to another proceeding,
the Implementing  Rules only permit incumbent LECs to recover from interexchange
carriers using unbundled  network elements for local service certain portions of
the current interstate access charges.  Such interexchange  carriers will not be
required  to pay  these  charges  as of the  earliest  of  July  1,  1997 or the
occurrence of certain other events, such as RBOC receipt of authority to provide
in-region long distance service.

         In October 1996, the United States Court of Appeals for the 8th Circuit
ordered a stay of the  effectiveness  of those  provisions  of the  Implementing
Rules  addressed to the pricing of  unbundled  network  elements  and  wholesale
services  ("Pricing  Rules"),  among  others,  until  such  court  resolves  the
challenges to the Implementing Rules by local telephone  companies and telephone
regulators  in several  states.  The court heard  argument on the  challenges in
January 1997.

         AT&T  believes  that the stay of the  Pricing  Rules  may  inhibit  the
establishment  of  appropriate  permanent  rates for the  provision  of  network
elements and wholesale  services.  Absent full effectiveness of the Implementing
Rules, each state will determine the applicable rates and procedures independent
of the framework of the Pricing  Rules.  Since the stay was issued,  many states
have used the Pricing  Rules as guidelines  in  establishing  interim rates that
will apply pending the  determination  of permanent  rates in  subsequent  state
proceedings.  Nevertheless, in the absence of the Pricing Rules, there can be no
assurance  that the prices and other  conditions  established in each state will
provide for effective  local service entry and  competition or provide AT&T with
new market opportunities.

         AT&T has  applied for  permission  to provide  local  service in all 50
states. At December 31, 1996, AT&T had received  authority to provide service in
42 states and  anticipates  that it will receive the remaining  approvals as the
other states take the actions contemplated by the Telecommunications  Act. While
the Telecommunications Act makes clear that no state can prohibit AT&T or any

<PAGE>

other entity from providing local services, AT&T cannot be certain as to when it
will receive certification in each state and the conditions that might attach to
each such  certification.  Most of the RBOCs have indicated  their  intention to
petition the FCC during 1997 for permission to provide interexchange services in
one or more states within their home market.

         As a result of the  legislative and regulatory  developments  discussed
above, there can be no assurance that all of the necessary preconditions for the
development of effective local  competition will be achieved in a timely or even
manner  and  that  long  distance  carriers  will be in a  position  to  compete
effectively  against RBOCs in local service at the time RBOCs receive permission
to enter  the long  distance  market.  Because  it is  widely  anticipated  that
substantial  numbers of long  distance  customers  will seek to purchase  local,
interexchange  and other services from a single carrier as part of a combined or
full service  package,  any  competitive  disadvantage,  inability to profitably
provide local service at competitive rates or delays or limitations in providing
local service or combined  service packages could adversely affect AT&T's future
revenues and earnings.

Modification of Final Judgment of 1982

         Prior to 1996, AT&T and the RBOCs were subject to the provisions of the
Modification of Final Judgment of 1982 (the "MFJ") since its implementation. The
Telecommunications Act effectively superseded future
operation  of the MFJ.
Consequently, on April 11, 1996, Judge Harold Greene issued an order terminating
the MFJ.

Regulation of Rates

         AT&T  is  subject  to the  jurisdiction  of the  FCC  with  respect  to
interstate and international rates, lines and services,  and other matters. From
July 1989 to October 1995, the FCC regulated AT&T under a system known as "price
caps" whereby AT&T's prices, rather than its earnings,  were limited. On October
12, 1995,  recognizing a decade of enormous  change in the long distance  market
and finding  that AT&T  lacked  market  power in the  interstate  long  distance
market,  the FCC reclassified AT&T as a "non-dominant"  carrier for its domestic
interstate services. As a result, AT&T became subject to the same regulations as
its long  distance  competitors  for such  services.  Thus,  AT&T was no  longer
subject to price cap  regulation  for these  services,  was able to file tariffs
that are presumed lawful on one day's notice,  and was free of other regulations
and reporting requirements that apply only to dominant carriers.

         In addition,  in further  recognition of competitive  developments,  on
October  31,  1996,  the FCC  issued an order,  to be  effective  in late  1997,
prohibiting AT&T and other  non-dominant  carriers from filing tariffs for their
domestic  interstate  services.  Accordingly,  carriers  will be required to use
contracts and other  commercial  arrangements  to establish the terms of service
with  customers.  In February  1997,  the United States Court of Appeals for the
District of Columbia  ordered a stay of the  effectiveness  of the FCC'c  order.
Argument is expected to be heard later this year.

         AT&T remains  subject to the statutory  requirements of Title II of the
Communications  Act. AT&T must offer service under rates,  terms and  conditions
that are just, reasonable and not unreasonably discriminatory,  it is subject to
the FCC's  complaint  process,  and it must give notice to the FCC and  affected
customers prior to discontinuance, reduction, or impairment of service. AT&T has
also made certain commitments that address concerns that had been raised with

<PAGE>

regard to the potential impact of declaring AT&T to be non-dominant, including a
three-year rate assurance for low income and low usage  residential  users and a
three-year  limit on, and 5 days  advance  notice  for,  rate  increases  on 800
directory assistance and analog private line services.

         AT&T's  international  private line  services  have been  classified as
non-dominant  for several years.  AT&T's  switched  international  services have
become subject to increased competition, similar to its domestic services and on
May 9, 1996,  the FCC  adopted  an order  reclassifying  AT&T as a  non-dominant
carrier for such  services.  AT&T has made certain  voluntary  commitments  that
address issues raised in that proceeding, including commitments: (i) to maintain
its annual average revenue per minute for international  residential calls at or
below the 1995  level  through  May 9, 1999,  and in the event of a  significant
change that substantially  raises AT&T's costs, to provide the FCC five business
days notice prior to  implementing  rate  increases  that would raise the annual
average  revenue  per minute for such calls  above the 1995  level;  and (ii) to
maintain  certain  discount  calling plans providing at least a 15% discount off
basic pricing schedules until May 9, 1999. AT&T also made voluntary  commitments
relating to its operation of international cable facilities,  its negotiation of
settlement  agreements with foreign carriers and its  relationship  with foreign
partners.

         In  addition  to  the  matters  described  above  with  respect  to the
Telecommunications  Act, state public service commissions or similar authorities
having  regulatory  power over  intrastate  rates,  lines and services and other
matters regulate AT&T's local and intrastate communications services. The system
of regulation used in many states is rate-of-return regulation. In recent years,
many states have adopted  different  systems of  regulation,  such as:  complete
removal of rate-of-return regulation, pricing flexibility rules, price caps, and
incentive regulation.

COMPETITION

     AT&T  currently  faces  significant  competition in the  communication  and
information  services  industry and expects that the level of  competition  will
continue to increase.  As  competitive,  regulatory  and  technological  changes
occur,  including  those  occasioned by the enactment of the  Telecommunications
Act, AT&T anticipates  that new and different  competitors will enter and expand
their  position  in the  communications  services  markets.  These  may  include
entrants  from other  segments of the  communication  and  information  services
industry or global  competitors  seeking to expand their  market  opportunities.
Many such new  competitors  are likely to enter with a strong  market  presence,
well recognized names and pre-existing direct customer relationships.

         The   Telecommunications   Act  has  already  begun  to  intensify  the
competitive  environment.  Anticipating changes in the industry,  non-RBOC LECs,
which are not required to implement  the  Telecommunications  Act's  competitive
checklist  prior to offering  long  distance in their home  markets,  have begun
integrating  their local  service  offerings  with long  distance  offerings  in
advance of AT&T being able to offer combined local and long distance  service in
these areas. If such non-RBOC LECs continue to offer combined  services  without
offering reasonable terms of interconnection and service elements at competitive
rates,  AT&T's  revenues and earnings in these service regions will be adversely
affected.

         Similarly,  to the extent  that the RBOCs  obtain  in-region  interLATA
authority before the Telecommunications Act's checklist of conditions have been

<PAGE>

fully or satisfactorily implemented and adequate facilities-based local exchange
competition   exists,   there  is  a  substantial   risk  that  AT&T  and  other
interexchange  service  providers  would be at a  disadvantage  to the  RBOCs in
providing both local service and combined  service  packages.  Furthermore,  the
previously   announced  merger  of  British   Telecommunications   PLC  and  MCI
Communications Corp. will create a large, well-capitalized competitor for AT&T's
offerings, domestically as well as internationally,  with substantial financial,
technical, marketing and other resources and a large worldwide installed base of
customers.

        Furthermore,  in February 1997, a General Agreement on Trade in Services
(the "GATS") was reached  under the World Trade  Organization.  The GATS,  which
will  become  effective  January 1, 1998,  is  designed  to open each  country's
domestic telecommunications markets to foreign competitors. The GATS, and future
trade  agreements,  may accelerate the entrance into the U.S.  market of foreign
telecommunications  providers,  certain of whom are  likely to possess  dominant
home market positions in which there is not effective competition.  The GATS may
also  permit  AT&T's  entrance  into  other  markets  as only a small  number of
countries refused to eliminate their foreign ownership restrictions.

         In addition to the matters  referred to above,  various other  factors,
including  market  acceptance,  start-up and ongoing costs  associated  with the
provision of new services and local  conditions and obstacles,  could  adversely
affect  the  timing  and  success  of AT&T's  entrance  into the local  exchange
services  market and AT&T's  ability to offer  combined  service  packages  that
include local service.  In addition,  the simultaneous  entrance of numerous new
competitors  for  interexchange  and  combined  service  packages  is  likely to
adversely  affect  AT&T's long  distance  revenues  and could  adversely  affect
earnings.

        AT&T's other industry segment, the financial services industry,  is also
highly   competitive.   Participants  in  the  industry  compete  through  price
(including  the  ability to control  costs),  risk  management,  innovation  and
customer service.  Principal cost factors include the cost of funds, the cost of
selling to or acquiring  new  end-user  customers  and vendors,  and the cost of
managing portfolios (including,  for example, billing,  collection,  credit risk
management and residual management).


FORWARD LOOKING STATEMENTS

         Except for the historical  statements and discussions contained herein,
statements  contained in this Report on Form 10-K  constitute  "forward  looking
statements"  within the meaning of Section 27A of the Securities Act of 1933 and
Section 21E of the Securities Exchange Act of 1934. Any Form 10-K, Annual Report
to  Shareowners,  Form  10-Q or Form 8-K of AT&T  may  include  forward  looking
statements.  In addition,  other  written or oral  statements  which  constitute
forward looking statements have been made and may in the future be made by or on
behalf of AT&T,  including statements  concerning future operating  performance,
AT&T's share of new and existing  markets,  AT&T's short- and long-term  revenue
and  earnings  growth  rates,  and  general  industry  growth  rates and  AT&T's
performance relative thereto.  These forward looking statements rely on a number
of   assumptions   concerning   future   events,   including  the  adoption  and
implementation  of balanced and effective  rules and  regulations by the FCC and
the  state  public  regulatory  agencies,   and  AT&T's  ability  to  achieve  a
significant market penetration in new markets.  These forward looking statements
are subject to a number of uncertainties and other factors, many of which are

<PAGE>

outside AT&T's  control,  that could cause actual  results to differ  materially
from such statements. These factors include, but are not limited to:

- - the efficacy of the Implementing Rules and other rules and regulations to be
  adopted by the FCC to implement the provisions of the Telecommunications Act;

- - the outcome of negotiations  with LECs and state  regulatory arbitrations and
  approvals with respect to interconnection agreements; the timing of receipt of
  and the conditions that attach to,  certification  to provide local service in
  each  state;  and the  ability  to  purchase  unbundled network  elements  or
  wholesale  services from LECs at a price  sufficient to permit the  profitable
  offering of local exchange service at competitive rates;

- - success and market  acceptance  for new  offerings,  including local service;
  start-up costs associated with entering new markets, including advertising and
  promotional efforts;  successful deployment of new systems and applications to
  support new offerings; and local conditions and obstacles;

- - competitive pressures, including pricing pressures, technological developments
  and the ability to offer combined service packages that include local service;
  the extent and pace at which different  competitive environments  develop for
  each segment of the  telecommunications  industry; the extent at and duration
  for which competitors from each segment of the telecommunications industry are
  able to offer  combined or full service  packages prior to AT&T being able to;
  and the degree to which AT&T experiences  material  competitive impacts to its
  traditional service offerings prior to achieving adequate local service entry;

- - the availability, terms and deployment of capital; and the ability to achieve
  cost savings; and

- - general economic conditions,  government and regulatory policies, and business
  conditions in the communications industry.

         Readers are cautioned not to put undue reliance on such forward looking
statements.   For  a  more  detailed   description   of  these  and   additional
uncertainties  and other  factors  that  could  cause  actual  results to differ
materially  from such forward looking  statements,  see "Results of Operations",
"Financial   Condition",   "Regulatory   and  Legislative   Developments",   and
"Competition"  included in or  incorporated by reference into this Form 10-K. As
described  elsewhere in this Form 10-K,  these  uncertainties  and factors could
adversely  affect  the  timing and  success  of AT&T's  entrance  into the local
exchange  services market and AT&T's ability to offer combined  service packages
that include local service,  thereby adversely  affecting AT&T's future revenues
and earnings. AT&T disclaims any intention or obligation to update or revise any
forward  looking  statements,  whether  as a result of new  information,  future
events or otherwise.

SEGMENT, OPERATING REVENUE AND RESEARCH AND DEVELOPMENT EXPENSE
INFORMATION

         For information about the Company's industry  segments,  see Note 12 to
the  Consolidated  Financial  Statements.  For  information  about the Company's
research  and  development  expense,  see Note 4 to the  Consolidated  Financial
Statements.   For  information   about  the  consolidated   operating   revenues
contributed  by the Company's  major  classes of products and services,  see the
revenue tables and descriptions on pages 21 through 23 and Consolidated

<PAGE>

Statements  of  Income on page 30 of the  Company's  annual  report to  security
holders  for  the  year  ended  December  31,  1996.  All  such  information  is
incorporated herein by reference pursuant to General Instruction G(2).

EMPLOYEE RELATIONS

         At December 31, 1996 AT&T employed approximately 130,000 persons in its
operations, approximately 124,000 of whom are located domestically. About 41% of
the domestically  located  employees of AT&T are represented by unions. Of those
so  represented,  about 96% are  represented  by the  Communications  Workers of
America  ("CWA"),  which  is  affiliated  with  the  AFL-CIO;  about  4% by  the
International   Brotherhood  of  Electrical  Workers  ("IBEW"),  which  is  also
affiliated  with the AFL-CIO.  In addition,  there is a very small  remainder of
domestic  employees  represented by other unions.  Labor agreements with most of
these unions extend through May 1998.

ITEM 2.  PROPERTIES.

         The properties of AT&T consist primarily of plant and equipment used to
provide long  distance  telecommunications  services and  administrative  office
buildings.

         Telecommunications  plant and  equipment  consists of:  central  office
equipment,  including  switching and  transmission  equipment;  connecting lines
(cables,  wires, poles, conduits,  etc.); land and buildings;  and miscellaneous
properties  (work equipment,  furniture,  plant under  construction,  etc.). The
majority of the  connecting  lines are on or under  public  roads,  highways and
streets and international and territorial  waters. The remainder are on or under
private  property.  AT&T also operates a number of sales offices,  customer care
centers, and other facilities, such as research and development laboratories.

         AT&T continues to manage the  deployment and  utilization of its assets
in order to meet its global  growth  objectives  while at the same time ensuring
that these assets are generating economic value added for the shareholder.  AT&T
will  continue  to  manage  its  asset  base   consistent   with   globalization
initiatives, marketplace forces, productivity growth and technology change.

         A  substantial  number  of the  administrative  offices  of AT&T are in
leased buildings.  Substantially all of the important communications  facilities
are in  buildings  owned by AT&T or leased from the regional  holding  companies
created at divestiture.  Many of the smaller  facilities are in rented quarters.
Most of the  important  buildings are on land held in fee, but a few are on land
held under long-term leases.

ITEM 3.  LEGAL PROCEEDINGS.

         In the normal  course of  business,  AT&T is  subject  to  proceedings,
lawsuits and other  claims,  including  proceedings  under  government  laws and
regulations related to environmental and other matters. Such matters are subject
to  many   uncertainties  and  outcomes  are  not  predictable  with  assurance.
Consequently,  AT&T is unable to  ascertain  the  ultimate  aggregate  amount of
monetary liability or financial impact with respect to these matters at December
31, 1996. While these matters could affect operating  results of any one quarter
when resolved in future periods, it is management's opinion that after final

<PAGE>

disposition,  any monetary  liability  or  financial  impact to AT&T beyond that
provided  for at year-end  would not be material to AT&T's  annual  consolidated
financial position or results of operations.

     On February 14, 1996,  Bell  Atlantic  Corporation  and DSC  Communications
Corporation  filed a  complaint  against  AT&T and Lucent in the  United  States
District Court for the Eastern District of Texas. The complaint asserted,  among
other  things,  monopolization  or attempted  monopolization  claims  concerning
communications    transmission   equipment,    related   software   and   caller
identification  services.  AT&T filed  counterclaims  against Bell  Atlantic and
Lucent filed counterclaims  against DSC Communications.  In the first quarter of
1997, Bell Atlantic,  DSC Communications,  AT&T and Lucent independently reached
separate settlements with plaintiffs pursuant to confidential agreements,  which
resolved  the claims among the parties.  The  settlements  will have no material
impact on AT&T's financial position or results of operations.

         AT&T is also a named party in a number of environmental  actions,  none
of which are material to the  consolidated  financial  statements or business of
the Company. In addition,  pursuant to the Separation and Distribution Agreement
by and among AT&T, Lucent, and NCR, dated as of February 1, 1996 and amended and
restated  as of March 29,  1996,  Lucent has assumed  liability,  subject to the
liability sharing provisions of that agreement, for a number of actions in which
AT&T remains a named  party.  AT&T is working to be released as a party to these
actions,  although  there can be no assurance that it will be successful in this
regard.

     There are three environmental proceedings which are required to be reported
pursuant to  Instruction  5.C. of Item 103 of  Regulation  S-K, all of which are
proceedings for which Lucent has assumed liability,  as described above. On July
31, 1991, the United States Environmental  Protection Agency Region III issued a
complaint  pursuant to Section 3008a of the Resource  Conservation  and Recovery
Act alleging violations of various waste management regulations at the Company's
Richmond Works, Richmond,  Virginia. The complaint seeks a total of $4.2 million
in penalties.  In addition,  on July 31, 1991,  the United States  Environmental
Protection  Agency filed a civil  complaint in the U.S.  District  Court for the
Southern District of Illinois against the Company and nine other parties seeking
enforcement  of  its  Comprehensive  Environmental  Response,  Compensation  and
Liability Act ("CERCLA") Section 106 cleanup order,  issued in November 1990 for
the NL Granite  City  Superfund  site,  Granite,  Illinois,  past  costs,  civil
penalties  of $25,000  per day and  treble  damages  related  to certain  United
States' costs. Finally,  during 1994, AT&T Nassau Metals Corporation ("Nassau"),
a  wholly  owned  subsidiary  of  AT&T,  and the New York  State  Department  of
Environmental  Conservation ("NYSDEC") were engaged in negotiations over a study
and  cleanup  of the Nassau  plant  located on  Richmond  Valley  Road in Staten
Island,  New York.  During these  negotiations,  in June 1994,  NYSDEC presented
Nassau with a draft consent order which included not only provisions relating to
site  investigation  and  remediation but also a provision for payment of a $3.5
million   penalty  for  alleged   violations  of  hazardous   waste   management
regulations. No formal proceeding has been commenced by NYSDEC.

ITEM 4.  SUBMISSION OF MATTERS TO A VOTE OF SECURITY-HOLDERS.

   No matter was submitted to a vote of security  holders in the fourth  quarter
of the fiscal year covered by this report.

<PAGE>


                      Executive Officers of the Registrant
                            (as of March 28, 1997)


                                                          
                                                          Became AT&T Executive
Name                  Age                                 Officer On
- ----------------      ---                                 ---------------------

Robert E. Allen* . . .62  Chairman of the Board and Chief
                            Executive Officer . . . . . . .          9-86
Harry S. Bennett . . .52  Vice President & General Manager,
                            AT&T Local Services Division  .          3-97
Harold W. Burlingame .56  Executive Vice President, Human .
                            Resources . . . . . . . . . . .          9-86
Steven W. Hooper . . .44  President & Chief Executive
                            Officer - AT&T Wireless
                            Services  . . . . . . . . . . .          3-97
Frank Ianna  . . . . .47  Vice President & General Manager,
                            Network & Computing Services &
                            AT&T Chief Quality Officer  . .          3-97
Marilyn Laurie . . . .57  Executive Vice President, Brand
                            Strategy &  Marketing                    2-87
                            Communications  . . . . . . . .
Gail J. McGovern . . .44  Executive Vice President,
                            Consumer Markets Division . . .          1-96
Victor E. Millar . . .61  President & Chief Executive
                            Officer, AT&T Solutions . . . .          3-97
Richard W. Miller  . .56  Senior Executive Vice President
                            and Chief Financial Officer . .          8-93
David C. Nagel . . . .52  President, AT&T Labs  . . . . . .          3-97
John Petrillo  . . . .47  Executive Vice President,
                            Strategy & New Service
                            Innovation and International  .          1-96
Ron J. Ponder  . . . .53  Executive Vice President,
                            Operations & Service
                            Management  . . . . . . . . . .          1-96
Richard J. Srednicki .49  President & Chief Executive
                            Officer, AT&T Universal Card
                            Services  . . . . . . . . . . .          3-97
John R. Walter** . . .50  President and Chief Operating
                            Officer . . . . . . . . . . . .         11-96
Jeffrey Weitzen  . . .40  Executive Vice President,
                            Business Markets Division . . .          1-97
Paul J. Wondrasch  . .53  Senior Vice President,
                            International . . . . . . . . .          3-97
John D. Zeglis . . . .49  General Counsel and Senior
                            Executive Vice President,
                            Policy Development & Operations
                            Support . . . . . . . . . . . .          9-86

- -----------
     *Chairman of the Board of Directors and Chairman of the Executive
      and Proxy Committees.
    **Member of the Board of Directors.

   All of the above executive officers have held high level managerial positions
with AT&T or its  affiliates  for more than the past five years,  except Messrs.
Hooper,  Millar,  Miller, Nagel, Ponder,  Srednicki and Walter. Prior to joining
AT&T  in  September   1994,  at  the  time  of  the  merger  of  McCaw  Cellular
Communications,  Inc. with AT&T, Mr. Hooper was Chief Financial Officer of McCaw
(AT&T Wireless Services, Inc.), from 1993, and held various other positions with
McCaw prior to that time. Prior to joining AT&T in February 1995, Mr. Millar was
with Unisys Corporation,  an information services company,  serving as President
from 1992. Prior to joining AT&T in August 1993, Mr. Miller was with Wang

<PAGE>

Laboratories,  Inc.,  a computer  company,  from 1989 through  1993,  serving as
President and Chief Operating Officer and later as Chairman, President and Chief
Executive  Officer.  On February 3, 1997,  AT&T  announced  that Mr.  Miller was
resigning his position with AT&T. Prior to joining AT&T in April 1996, Mr. Nagel
was with Apple Computer,  a computer  company,  serving as Senior Vice President
from 1995 and General  Manager from 1988 through 1995.  Prior to joining AT&T in
June 1993, Mr. Ponder was Executive Vice President and Chief Information Officer
for Sprint Corporation,  a telecommunications  company, from 1991 to 1993. Prior
to joining AT&T in January 1997, Mr. Srednicki was Business Manager of Citibank-
Germany and Country Corporate  Officer,  Citibank  Bankcards from 1990. Prior to
joining AT&T in November  1996,  Mr.  Walter was  Chairman  and Chief  Executive
Officer of R.R.  Donnelley & Sons  Company,  a financial  printer,  from 1989 to
1996.

   Officers  are not elected  for a fixed term of office but hold  office  until
their successors have been elected or such officers resign or retire.


                                     PART II

Items 5. through 8.

   The  information  required  by these items is included in pages 20 through 44
and on the outside back cover of the Company's annual report to security holders
for the year ended December 31, 1996. Such information is incorporated herein by
reference, pursuant to General Instruction G(2). The referenced information from
the Company's  annual report to security holders has been filed as Exhibit 13 to
this document.

Item 9.  Changes in and Disagreements with Accountants on
Accounting and Financial Disclosure.

   There have been no changes in independent  accountants  and no  disagreements
with  independent   accountants  on  any  matter  of  accounting  principles  or
practices, financial statement disclosure, or auditing scope or procedure during
the last two years.


                                    PART III

Items 10. through 13.

   Information  regarding  executive officers required by Item 401 of Regulation
S-K is furnished in a separate  disclosure in Part I of this report  because the
Company did not furnish  such  information  in its  definitive  proxy  statement
prepared in accordance with Schedule 14A.

   The other  information  required  by Items 10 through 13 is  included  in the
Company's  definitive proxy statement dated April 1, 1997, the last paragraph on
page 5, the carryover  paragraph and first full  paragraph on page 6, the second
full  paragraph  on page 7 through the final  footnote on page 12 and the fourth
paragraph on page 37 through page 57. Such information is incorporated herein by
reference, pursuant to General Instruction G(3).

<PAGE>


                                     PART IV

Item 14.  Exhibits, Financial Statement Schedules, and Reports on Form 8-K.

      (a)  Documents filed as a part of the report:

      (1)  Financial Statements:

Pages

- -----

      Report of Management..............................................  *
      Report of Independent Accountants.................................  *

      Statements:
            Consolidated Statements of Income...........................  *
            Consolidated Balance Sheets.................................  *
            Consolidated Statements of Changes in
              Shareowners' Equity.......................................  *
            Consolidated Statements of Cash Flows.......................  *
            Notes to Consolidated Financial Statements..................  *

      (2) Financial Statement Schedules:

            Report of Independent Accountants..........................  18

            Schedules:

            II -- Valuation and Qualifying Accounts....................  19

            Separate  financial  statements of subsidiaries not consolidated and
            50 percent or less owned  persons are  omitted  since no such entity
            constitutes a "significant subsidiary" pursuant to the provisions of
            Regulation S-X, Article 3-9.

      (3)   Exhibits:

            Exhibits   identified  in  parentheses   below,  on file  with  the
            Securities and Exchange Commission ("SEC"),  are incorporated herein
            by reference as exhibits hereto.

      Exhibit
      Number:

          (3)a          Restated Certificate of Incorporation of the  registrant
                        filed January 10, 1989, Certificate of Correction of the
                        registrant   filed   June   8,   1989, Certificate   of
                        Change  of   the  registrant   filed March  18,   1992,
                        Certificate   of   Amendment   of  the registrant  filed
                        June 1,  1992, and  Certificate  of Amendment  of  the
                        registrant   filed  April  20,   1994. (Exhibit 4 to
                        Registration  Statement  No. 333-00573).

- ------------
*Incorporated herein by reference to the appropriate portions of the Company's
 annual report to security holders for the year ended December 31, 1996. (See
 Part II.)

<PAGE>


        (3)b            By-Laws of  the registrant, as amended January 15, 1997.

        (4)             No  instrument  which  defines  the rights of holders of
                        long  term  debt,  of  the  registrant and  all  of its
                        consolidated subsidiaries, is filed herewith pursuant to
                        Regulation S-K, Item 601(b)(4)(iii)(A). Pursuant to this
                        regulation,  the  registrant  hereby agrees to furnish a
                        copy of any such instrument to the SEC upon request.

        (10)(i)1        Form of Separation  and  Distribution Agreement  by  and
                        among AT&T  Corp., Lucent Technologies Inc.  and     NCR
                        Corporation,  dated as  of February 1, 1996  and amended
                        and  restated  as of March 29, 1996.

        (10)(i)2        Form of Distribution Agreement, dated as of November 20,
                        1996,  by and between AT&T Corp. and NCR Corporation.

        (10)(i)3        Tax Sharing  Agreement by and among  AT&T Corp.,  Lucent
                        Technologies Inc.   and  NCR Corporation, dated  as  of
                        February 1, 1996   and  amended   and restated  as  of
                        March 29, 1996.

        (10)(i)4        Employee  Benefits  Agreement by  and between AT&T Corp.
                        and   Lucent Technologies Inc.,  dated as of February 1,
                        1996 and amended and restated as of March 29, 1996.

        (10)(i)5        Form  of  Employee   Benefits  Agreement, dated  as  of
                        November  20,  1996,   between   AT&T Corp.  and    NCR
                        Corporation.

        (10)(ii)(B)1    General    Purchase    Agreement  between AT&T Corp. and
                        Lucent Technologies Inc.,  dated  February 1, 1996   and
                        amended and restated as of March 29, 1996.

        (10)(ii)(B)2    Form  of   Volume   Purchase   Agreement, dated  as  of
                        November 20, 1996,  by  and  between  AT&T Corp. and NCR
                        Corporation.

        (10)(iii)(A)1   AT&T Short Term Incentive  Plan as amended  March,  1994
                        (Exhibit (10)(iii)(A)1 to Form 10-K for 1994, File No.
                        1-1105).

        (10)(iii)(A)2   AT&T 1987 Long Term  Incentive  Program as amended  July
                        17, 1989 (Exhibit  (10)(iii)(A)2  to Form SE dated March
                        24, 1993, File No. 1-1105).


<PAGE>

        (10)(iii)(A)3   AT&T Senior Management Individual Life Insurance Program
                        dated January 1, 1987 (Exhibit (10)(iii)(A)1 to Form SE,
                        dated  March 25, 1987,  File No. 1-1105) and  as revised
                        December 1, 1994 (Exhibit (10)(iii)(A)3 to Form 10-K for
                        1994, File No. 1-1105).

        (10)(iii)(A)4   AT&T   Senior   Management   Long  Term Disability  and
                        Survivor  Protection  Plan,  as  amended and   restated
                        effective January 1, 1995.

        (10)(iii)(A)5   AT&T  Senior  Management  Financial Counseling  Program
                        dated  December 29, 1994  (Exhibit (10)(iii)(A)5 to Form
                        10-K for 1994, File No. 1-1105).

        (10)(iii)(A)6   AT&T  Deferred   Compensation   Plan for   Non-Employee
                        Directors,  as amended  December 15, 1993 (Exhibit (10)
                        (iii)(A)6 to Form 10-K for 1993, File No. 1-1105).

        (10)(iii)(A)7   The AT&T Directors  Individual  Life Insurance  Program
                        dated January 1, 1987, revised December 1, 1995.

        (10)(iii)(A)8   AT&T Plan for  Non-Employee  Directors' Travel  Accident
                        Insurance (Exhibit (10)(iii)(A)8 to  Form 10-K for 1990,
                        File No. 1-1105).

        (10)(iii)(A)9   AT&T Excess  Benefit and  Compensation Plan, as amended
                        and restated effective October 1, 1996.

        (10)(iii)(A)10  AT&T Non-Qualified Pension Plan, as amended and restated
                        January 1, 1995.

        (10)(iii)(A)11  AT&T  Senior  Management  Incentive Award Deferral Plan,
                        as amended December 20, 1995.

        (10)(iii)(A)12  AT&T Mid-Career Hire Program revised effective  January
                        1, 1988 (Exhibit  (10)(iii)(A)4  to Form SE, dated March
                        25, 1988,  File No. 1-1105)  including AT&T  Mid-Career
                        Pension Plan, as amended and restated October 1, 1996.

        (10)(iii)(A)13  AT&T 1984 Stock  Option Plan,  as modified  December 19,
                        1984 (Exhibit 10(t) to Form SE, dated February  27,1985,
                        File No. 0-13247).

        (10)(iii)(A)14  Form  of  Indemnification   Contract for  Officers and
                        Directors  (Exhibit (10)(iii)(A)6   to Form  SE,  dated
                        March 25, 1987, File No. 1-1105).

        (10)(iii)(A)15  Pension  Plan  for  AT&T Non-Employee Directors revised
                        February 20, 1989  (Exhibit (10)(iii)(A)15  to Form 10-K
                        for 1993, File No. 1-1105).

        (10)(iii)(A)16  AT&T Corp.  Senior  Management   Basic Life   Insurance
                        Program, as amended May 17, 1995.

        (10)(iii)(A)17  Form of AT&T Benefits Protection Trust Agreement Exhibit
                        (10)(iii)(A)17  to Form SE, dated  March 25, 1992,  File
                        No. 1-1105).

        (10)(iii)(A)18  Form of  Employment   Agreement  between AT&T Corp. and
                        John R. Walter dated October 23, 1996.
<PAGE>

        (10)(iii)(A)19  Employment  Agreement  between  American Telephone  and
                        Telegraph Company  and Richard W. Miller dated August 9,
                        1993 (Exhibit 10(iii)(A)19 to  Form 10-K for 1995,  File
                        No. 1-1105).

        (12)            Computation of Ratio of Earnings to Fixed Charges.

        (13)            Specified  portions (pages 20 through 44 and the outside
                        back cover) of the  Company's  Annual Report to security
                        holders for the year ended December 31, 1996.

        (21)            List of subsidiaries of AT&T.

        (23)            Consent of Coopers & Lybrand L.L.P.

        (24)            Powers of Attorney  executed  by  officers and directors
                        who signed this report.

        (27)            Financial Data Schedule.

           AT&T will furnish,  without charge, to a security holder upon request
a copy of the  annual  report  to  security  holders  and the  proxy  statement,
portions  of which are  incorporated  herein  by  reference  thereto.  AT&T will
furnish any other exhibit at cost.

     (b) Reports on Form 8-K:

           During the fourth quarter 1996,  Forms 8-K dated October 10, 1996 and
October 28, 1996 were filed pursuant to Item 5 (Other Events).

<PAGE>

                        REPORT OF INDEPENDENT ACCOUNTANTS


To the Shareowners of AT&T Corp.:


Our  report  on  the  consolidated   financial  statements  of  AT&T  Corp.  and
subsidiaries  has been  incorporated by reference in this Form 10-K from page 29
of the 1996 Annual Report to the  Shareowners  of AT&T Corp. In connection  with
our  audits of such  financial  statements,  we have also  audited  the  related
consolidated financial statement schedule listed in the index on page 14 of this
Form 10-K.

     In our opinion,  the consolidated  financial statement schedule referred to
above, when considered in relation to the basic financial  statements taken as a
whole, presents fairly, in all material respects, the information required to be
included therein.



                            COOPERS & LYBRAND L.L.P.


1301 Avenue of the Americas
New York, New York
January 22, 1997

<PAGE>

<TABLE>


                              Schedule II--Sheet 1

                                   AT&T CORP.
                        AND ITS CONSOLIDATED SUBSIDIARIES

                 SCHEDULE II--VALUATION AND QUALIFYING ACCOUNTS

                              (Millions of Dollars)

- -------------------------------------------------------------------------------------------------------
           COL. A                            COL. B           COL.
C          COL. D           COL. E
- -------------------------------------------------------------------------------------------------------
                                           Balance at
Charged to                        Balance
                                           Beginning        Costs
and                         at End
         Description                       of Period
Expenses       Deductions(a)      of Period
- -------------------------------------------------------------------------------------------------------
         Year 1996
<S>                                        <C>
<C>              <C>             <C>
Allowances for doubtful accounts (b) ..... $1,287
$2,443           $2,342           $1,388
Reserves related to business
  restructuring, including force
  and facility consolidation (c) ..........$2,098           $
- --           $  710           $1,388
Deferred tax asset valuation allowance ... $  129           $
39           $    2           $  166

         Year 1995

Allowances for doubtful accounts (b) ..... $1,023
$2,272           $2,008           $1,287
Reserves related to business
  restructuring, including force
  and facility consolidation (c) ......... $  699
$1,718           $  319           $2,098
Deferred tax asset valuation allowance ... $   36           $
109           $   16           $  129

<FN>
The Notes on Sheet 2 are an integral part of this Schedule.
</FN>
</TABLE>

<PAGE>

<TABLE>

                              Schedule II--Sheet 2

                                   AT&T CORP.
                        AND ITS CONSOLIDATED SUBSIDIARIES

                 SCHEDULE II--VALUATION AND QUALIFYING ACCOUNTS
                              (Millions of Dollars)

- -------------------------------------------------------------------------------------------------------
           COL. A                            COL. B           COL.
C           COL. D          COL. E
- -------------------------------------------------------------------------------------------------------
                                           Balance at
Charged to                        Balance
                                           Beginning        Costs
and                         at End
        Description                        of Period
Expenses        Deductions(a)     of Period
- -------------------------------------------------------------------------------------------------------

         Year 1994
<S>                                        <C>
<C>              <C>              <C>
Allowances for doubtful accounts (b) ..... $  889
$1,697           $1,563           $1,023
Reserves related to business
  restructuring, including force
  and facility consolidation (c) ......... $  952           $
22           $  275           $  699
Deferred tax asset valuation allowance ... $   43           $
3           $   10           $   36


<FN>
- ------------

(a)  Amounts written off as uncollectible, net of recoveries.
(b)  Includes allowances for doubtful accounts on long-term
receivables of $52,
     $35 and $32 in 1996,  1995 and  1994,  respectively
(included  in  Finance
     receivables in the Consolidated Balance Sheets).
(c)  Included  primarily in Other  current  liabilities  and in
Other  long-term
     liabilities and deferred credits in the Consolidated Balance
Sheets.
</FN>
</TABLE>

<PAGE>

                                   SIGNATURES

   Pursuant  to the  requirements  of  Section  13 or  15(d)  of the  Securities
Exchange Act of 1934, the registrant has duly caused this report to be signed on
its behalf by the undersigned, thereunto duly authorized.


                                   AT&T Corp.


                               /s/  M. J. Wasser
                               ------------------------------------
                               By:  M. J. Wasser
                                    Vice President - Law and
Secretary

March 28, 1997

   Pursuant to the  requirements  of the Securities  Exchange Act of 1934,  this
report  has  been  signed  below  by the  following  persons  on  behalf  of the
registrant and in the capacities and on the date indicated.

Principal Executive Officers:                  #
                                               #
   Robert E. Allen           Chairman          #
                             of the Board and  #
                             Chief Executive   #
                             Officer           #
                                               #
   John R. Walter            President, Chief  #
                             Operating Officer #
                             and Director      #
                                               #
Principal Financial Officer:                   #
                                               #
   Richard W. Miller         Senior Executive  #
                             Vice President and#
                             Chief Financial   #
                             Officer           #
                                               #
Principal Accounting Officer:                  #
                                               #
   Maureen B. Tart           Vice President    ##    By M. J.
Wasser
                             and Controller    #
(attorney-in-fact)*
                                               #
Directors:                                     #
                                               #     March 28, 1997
   Kenneth T. Derr                             #
   M. Kathryn Eickhoff                         #
   Walter Y. Elisha                            #
   Ralph S. Larsen                             #
   Donald F. McHenry                           #
   Michael I. Sovern                           #
   Joseph D. Williams                          #
   Thomas H. Wyman                             #



<PAGE>

                                  Exhibit Index



       Exhibit
       Number:

       (3)a            Restated  Certificate of Incorporation of
the  registrant
                       filed  January 10, 1989, Certificate of
Correction of the
                       registrant  filed    June   8,   1989,
Certificate   of
                       Change   of    the  registrant  filed
March  18,  1992,
                       Certificate  of   Amendment   of   the
registrant  filed
                       June  1,  1992,  and  Certificate of
Amendment  of  the
                       registrant  filed   April   20,   1994.
(Exhibit  4   to
                       Registration  Statement  No. 333-00573).

       (3)b            By-Laws of the registrant, as amended
January 15, 1997.

       (4)             No instrument which defines the rights of
holders of long
                       term debt, of the registrant and all of
its  consolidated
                       subsidiaries,  is filed  herewith  pursuant
to Regulation
                       S-K, Item 601(b)(4)(iii)(A). Pursuant to
this regulation,
                       the  registrant  hereby  agrees to  furnish
a copy of any
                       such instrument to the SEC upon request.

       (10)(i)1        Form of  Separation  and  Distribution
Agreement by  and
                       among  AT&T  Corp.,  Lucent   Technologies
Inc.  and  NCR
                       Corporation, dated as of February 1, 1996
and amended and
                       restated  as  of  March 29, 1996.

       (10)(i)2        Form of Distribution  Agreement, dated as
of November 20,
                       1996,  by and  between AT&T Corp.  and NCR
Corporation.

       (10)(i)3        Tax Sharing  Agreement by and  among  AT&T
Corp.,  Lucent
                       Technologies Inc.  and  NCR  Corporation,
dated   as  of
                       February 1, 1996 and amended and restated
as of March 29,
                       1996.

       (10)(i)4        Employee Benefits Agreement by and between
AT&T Corp. and
                       Lucent Technologies  Inc., dated  as  of
February 1, 1996
                       and amended and restated as of March 29,
1996.

       (10)(i)5        Form of Employee Benefits Agreement, dated
as of November
                       20, 1996, between AT&T  Corp. and NCR
Corporation.

       (10)(ii)(B)1    General Purchase Agreement by  and between
AT&T Corp. and
                       Lucent  Technologies  Inc., dated
February  1, 1996  and
                       amended and restated as of March 29, 1996.

       (10)(ii)(B)2    Form of Volume  Purchase  Agreement, dated
as of November
                       20, 1996, by and between AT&T Corp. and NCR
Corporation.

       (10)(iii)(A)1   AT&T Short Term  Incentive  Plan as
amended  March,  1994
                       (Exhibit (10)(iii)(A)1 to Form 10-K for
1994, File No.
                       1-1105).

       (10)(iii)(A)2   AT&T 1987 Long Term Incentive Program as
amended July 17,
                       1989  (Exhibit  (10)(iii)(A)2  to Form SE
dated March 24,
                             1993, File No. 1-1105).

       (10)(iii)(A)3   AT&T Senior Management Individual Life
Insurance  Program
                       dated January 1, 1987 (Exhibit
(10)(iii)(A)1 to Form SE,
                       dated  March 25, 1987,  File No. 1-1105)
and  as  revised
                       December 1,  1994 (Exhibit (10)(iii)(A)3 to
Form 10-K for
                             1994, File No. 1-1105).

       (10)(iii)(A)4   AT&T  Senior   Management   Long  Term
Disability  and
                       Survivor Protection  Plan,   as  amended
and   restated
                           effective January 1, 1995.

       (10)(iii)(A)5   AT&T Senior Management Financial Counseling
Program dated
                       December 29, 1994 (Exhibit (10)(iii)(A)5 to
Form 10-K for
                             1994, File No. 1-1105).

       (10)(iii)(A)6   AT&T   Deferred   Compensation  Plan
for   Non-Employee
                       Directors, as amended December 15,
1993(Exhibit (10)(iii)
                       (A)6 to Form 10-K for 1993, File No.
1-1105).

       (10)(iii)(A)7   The AT&T  Directors  Individual  Life
Insurance  Program
                       dated January 1, 1987, revised December 1,
1995.

       (10)(iii)(A)8   AT&T  Plan  for  Non-Employee  Directors'
Travel Accident
                       Insurance (Exhibit (10)(iii)(A)8 to   Form
10-K for 1990,
                                File No. 1-1105).

       (10)(iii)(A)9   AT&T Excess Benefit and Compensation Plan,
as amended and
                       restated effective October 1, 1996.

       (10)(iii)(A)10  AT&T Non-Qualified  Pension Plan, as
amended and restated
                                January 1, 1995.

       (10)(iii)(A)11  AT&T  Senior Management Incentive Award
Deferral Plan, as
                           amended December 20, 1995.

       (10)(iii)(A)12  AT&T Mid-Career Hire Program revised
effective January 1,
                       1988 (Exhibit  (10)(iii)(A)4  to Form SE,
dated March 25,
                       1988, File No. 1-1105) including AT&T
Mid-Career  Pension
                       Plan, as amended and restated October 1,
1996.

       (10)(iii)(A)13  AT&T 1984 Stock  Option  Plan,  as
modified  December 19,
                       1984 (Exhibit 10(t) to Form SE, dated
February  27,1985,
                               File No. 0-13247).

       (10)(iii)(A)14  Form  of   Indemnification   Contract  for
Officers  and
                       Directors (Exhibit (10)(iii)(A)6 to Form
SE, dated March
                       25, 1987, File No. 1-1105).

       (10)(iii)(A)15  Pension  Plan  for  AT&T  Non-Employee
Directors revised
                       February 20, 1989  (Exhibit (10)(iii)(A)15
to  Form 10-K
                       for 1993, File No. 1-1105).

       (10)(iii)(A)16  AT&T  Corp.  Senior  Management   Basic
Life  Insurance
                       Program, as amended May 17, 1995.

       (10)(iii)(A)17  Form of AT&T Benefits Protection Trust
Agreement (Exhibit
                       (10)(iii)(A)17 to Form SE, dated March 25,
1992, File No.
                       1-1105).

       (10)(iii)(A)18  Form of Employment Agreement between AT&T
Corp. and  John
                       R. Walter dated October 23, 1996.

       (10)(iii)(A)19  Employment   Agreement  between  American
Telephone  and
                       Telegraph Company and Richard W.   Miller
dated August 9,
                       1993 (Exhibit  10(iii)(A)19  to  Form 10-K
for 1995, File
                       No. 1-1105).

       (12)            Computation of Ratio of Earnings to Fixed
Charges.

       (13)            Specified  portions  (pages 20 through 44
and the outside
                       back cover) of the  Company's  Annual
Report to security
                       holders for the year ended December 31,
1996.

       (21)            List of subsidiaries of AT&T.

       (23)            Consent of Coopers & Lybrand L.L.P.

       (24)            Powers of Attorney executed by officers and
directors who
                               signed this report.

       (27)            Financial Data Schedule.

</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-3.(II)
<SEQUENCE>2
<DESCRIPTION>EXHIBIT (3)B
<TEXT>



                                     BY-LAWS
                                  as amended by
                      BOARD OF DIRECTORS, January 15, 1997

                                    Article I
                             Meeting of Shareholders


      Section 1. The annual  meeting  of the  shareholders  shall be held in May
each year on such day, at such time and at such place as shall be  designated in
the notice of the meeting.

      A notice of the annual meeting as approved by the Board of Directors shall
be  mailed  not less than ten nor more  than  fifty  days  before  the  meeting,
directed to each shareholder  entitled to vote at said meeting at his address as
it  appears on the  record of  shareholders  unless he shall have filed with the
Secretary a written  request  that  notices  intended  for him be mailed to some
other address, in which case it shall be directed to him at such other address.

      Section 2. The Board of  Directors  may fix, in  advance,  a date not more
than  fifty  nor less  than  ten days  before  the  date of any  meeting  of the
shareholders as the record date for  determination  of shareholders  entitled to
notice of or to vote at such meeting,  and only  shareholders  of record on such
date shall be entitled to notice of or to vote at such meeting.

      Section 3. Special  meetings of the shareholders may be called at any time
by either  the  Chairman  of the Board or the Board of  Directors,  and shall be
called  upon a request  to the  Chairman  of the Board or  Secretary,  signed by
shareholders  representing  at least  one-third of the shares.  Any such request
shall specify the time and the purpose or purposes of the proposed meeting.  The
meeting  shall be held at such place  within or without the State of New York as
may be designated in the notice of the meeting.

      A notice of not less than ten nor more than  fifty  days shall be given by
mail for each special  meeting,  in the manner provided for notice of the annual
meeting.  Such notice  shall state the purpose or purposes for which the meeting
is  called  and the time  when and the  place  where it is to be held and  shall
indicate that the notice is being issued by or at the direction of the person or
persons calling the meeting.

      Section 4. Failure to receive  notice of any meeting shall not  invalidate
the meeting.

      Section  5.  Notice  of  shareholders   business  at  annual  meetings  of
shareholders shall be governed by the provisions of this By-Law.

      (1)  The proposal of business to be considered by the
shareholders may be
           made  at an  annual  meeting  of  shareholders  (a)
pursuant  to the
           company's  notice of meeting  pursuant to Section 1 of
this Article I
           of these By-Laws, by or at the direction of the Board
of Directors or
           (c) by any shareholder of the company who was a
shareholder of record
           at the time of giving  notice  provided  for in this
By-Law,  who is
           entitled  to vote at the  meeting  and who  complies
with the notice
           procedures set forth in this By-Law.


<PAGE>
     (2)  For  business to be properly  brought  before an annual
meeting by a
           shareholder  pursuant to clause (c) of paragraph  (1)
of this By-Law,
           the  shareholder  must have given timely notice thereof
in writing to
           the Secretary of the company and such  business  must
otherwise be a
           proper matter for shareholder  action.  To be timely, a
shareholder's
           notice shall be delivered to the Secretary at the
principal executive
           offices of the  company  not later than the close of
business on the
           90th calendar day nor earlier than the close of
business on the 120th
           calendar day prior to the first  anniversary of the
preceding  year's
           annual meeting; provided, however, that in the event
that the date of
           the annual  meeting is more than 30 calendar days
before or more than
           60  calendar  days  after  such  anniversary   date,
notice  by  the
           shareholder  to be timely must be so  delivered  not
earlier than the
           close of  business  on the 120th  calendar  day prior
to such  annual
           meeting  but not later than the close of business on
the later of the
           90th  calendar day prior to such annual  meeting or the
10th calendar
           day  following the calendar day on which public
announcement  of the
           date of such meeting is first made by the Company.  In
no event shall
           the  public  announcement  of an  adjournment  of an
annual  meeting
           commence a new time period for the giving of a
shareholder's  notice
           as described above. Such shareholder's  notice shall
set forth (a) as
           to any  description of the business  desired to be
brought before the
           meeting,  the reasons for conducting such business at
the meeting and
           any  material  interest  in such  business  of such
shareholder  and
           beneficial  owner,  if any, on whose behalf the
proposal is made; and
           (b) as to the shareholder giving the notice and the
beneficial owner,
           if any, on whose  behalf the  nomination  or proposal
is made (i) the
           name and address of such shareholder, as they appear on
the Company's
           books,  and of such beneficial owner and (ii) the class
and number of
           shares of the Company which are owned  beneficially
and of record by
           such shareholder and such beneficial owner.


                                   ARTICLE II.

                      The Conduct of Shareholders' Meetings

      At all  meetings of the  shareholders,  the holders of forty per centum of
the  shares  entitled  to vote  thereat  shall  constitute  a quorum,  except as
otherwise required by law; but the shareholders  present may adjourn the meeting
to another  time or place  despite  the absence of a quorum.  Every  shareholder
entitled to vote shall be  entitled  to one vote for each share  standing in his
name on the record of shareholders;  and every shareholder  entitled to vote may
vote in person or by proxy.

      All elections by shareholders shall be by ballot.

<PAGE>
                                  ARTICLE III.

                                   Inspectors

      The Board of Directors,  in advance of any  shareholders'  meeting,  shall
appoint three  Inspectors to act at the meeting or any adjournment  thereof.  In
case any person  appointed  fails to appear or act, the vacancy may be filled by
appointment made by the Board in advance of the meeting or at the meeting by the
person presiding thereat.


                                   ARTICLE IV.

                             The Board of Directors

      Section  1. The  business  of the  company  shall  be  managed  under  the
direction of its Board of Directors, who shall be elected by the shareholders at
the annual meeting.

      Section  2. The  number of  Directors  shall be not less than ten nor more
than twenty-five,  the exact number of Directors within such minimum and maximum
limits to be fixed and determined by the vote of a majority of the entire Board.
In case of any increase in the number of Directors, the additional Directors may
be elected by a majority of the Directors then in office.

      Section 3. Any  vacancy  in the Board may be filled by a majority  vote of
the remaining Directors, though less than a quorum.


                                   ARTICLE V.

                              Meetings of Directors

      Section 1. Regular  meetings shall be held at such times and places as the
Board may determine.

      Section 2. Special  meetings of the Directors may be called at any time by
the Chairman of the Board,  or by two members of the  Executive  Committee,  and
shall be called by the  Chairman of the Board,  or by the  Secretary,  forthwith
upon request in writing signed by two Directors and specifying the object of the
meeting.  At least three days' notice of a special meeting shall be given in the
manner provided for herein.

      Section 3. Any notice of a meeting of  Directors  required to be given may
be  given  to  each  Director  by  mail or  telegraph,  addressed  to him at his
residence or usual place of business, or in person or by telephone,  stating the
time and place of the proposed meeting.

      Section 4. One-third of the entire Board shall constitute a quorum.

      Section 5.  Meetings  of the  Directors  may be held within or without the
State of New York.

      Section  6. Any one or more  members  of the  Board may  participate  in a
meeting  of  the  Board  by  means  of  a   conference   telephone   or  similar
communications  equipment  allowing all persons  participating in the meeting to
hear each other at the same time.  Participation  by such means shall constitute
presence in person at a meeting.

      Any action  required  or  permitted  to be taken by the Board may be taken
without a meeting if all members of the Board consent in writing to the adoption
of a resolution  authorizing the action. The resolution and the written consents
thereto  by the  members  of the Board  shall be filed  with the  minutes of the
proceedings of the Board.

<PAGE>
                                   ARTICLE VI.

                    Executive Committee and Other Committees

      The Board of Directors,  by resolution adopted by a majority of the entire
Board,  may  designate  from  their  number  an  Executive  Committee  and other
committees,  and may  determine the quorum  thereof.  Any such  committee  shall
consist of three or more members and shall serve at the pleasure of the Board.

      The Chairman of the Board,  one or more Vice Chairmen of the Board and the
President,  if any, shall be members of the Executive  Committee.  The Executive
Committee  shall,  except as otherwise  provided by law or by  resolution of the
Board,  have all the  authority of the Board of Directors  during the  intervals
between the meetings of the Board.  The Executive  Committee shall keep a record
of its  proceedings,  which  shall from time to time be reported to the Board of
Directors.  The  Chairman  of the Board  shall  preside at the  meetings  of the
Executive Committee.

      Committees other than the Executive  Committee shall,  except as otherwise
provided by law,  have such  authority as shall be provided by resolution of the
Board.

      The  Board  may  designate  from  time to time  one or more  Directors  as
alternate members of the Executive Committee or of any other committee,  who may
replace any absent member or members at any meeting of the
committee.

      Any one or more members of the Executive  Committee or any other committee
established  by the Board  pursuant  to this  Article  VI may  participate  in a
meeting  of such  committee  by  means  of a  conference  telephone  or  similar
communications  equipment  allowing all persons  participating in the meeting to
hear each other at the same time.  Participation  by such means shall constitute
presence in person at the meeting.

      Any action required or permitted to be taken by the Executive Committee or
any other committee  established by the Board pursuant to this Article VI may be
taken  without a meeting if all members of the  committee  consent in writing to
the adoption of a resolution  authorizing the action. The resolution and written
consents  thereto  shall be filed  with the  minutes of the  proceedings  of the
committee.


                                  ARTICLE VII.

                             Officers of the Company

      Section l. The  officers of the  Company  shall be elected by the Board of
Directors, and may consist of a Chairman of the Board, one or more Vice Chairmen
of the Board, a President,  such number of Executive Vice  Presidents and Senior
Vice Presidents as the Board of Directors  shall from time to time determine,  a
Secretary,  a Treasurer and a Controller.  The officers  shall hold office until
their successors have been elected.

      Section  2. The  Board of  Directors  may  appoint  one or more  Assistant
Secretaries,   one  or  more  Assistant   Treasurers,   one  or  more  Assistant
Controllers,  and such  other  officers  and  agents as the  Board may  consider
necessary.

<PAGE>

                                  ARTICLE VIII.

                      Duties of the Chairman of the Board,
                     President, Vice Chairmen of the Board,
              Executive Vice Presidents and Senior Vice Presidents

      Section 1. The Chairman of the Board shall be the chief executive  officer
of the company and shall have such  authority and perform such duties as usually
appertain  to the chief  executive  office in  business  corporations.  He shall
preside at the meetings of the Board of Directors  and he, or such officer as he
may designate from time to time, shall preside at meetings of the shareholders.

      Section 2. The  President,  Vice  Chairmen  of the Board,  Executive  Vice
Presidents and Senior Vice Presidents  shall perform such duties as the Board of
Directors or Chairman of the Board may from time to time determine.

      Section 3. In case of absence or  inability  of the Chairman of the Board,
the President shall possess all the authority of the Chairman of the Board.


                                   ARTICLE IX.

                Duties of the Treasurer and Assistant Treasurers

      Section 1. The Treasurer  shall receive all the funds of the company,  and
shall  disburse  them  under  the  direction  of the  Board  of  Directors.  All
disbursement  instruments  shall be signed by such person or persons and in such
manner as the Board may from time to time provide.

      Section 2. The Treasurer  shall keep full and regular  books,  showing all
his  receipts and  disbursements,  which books shall be open at all times to the
inspection  of the  Chairman  of the  Board  or of any  member  of the  Board of
Directors;  and he shall make such  reports and perform such other duties as the
Chairman of the Board or Board of Directors may require.

      Section 3. The Treasurer  shall deposit all moneys received by him, in the
corporate name of the company,  with such depositories as shall be approved from
time to time by the Board of  Directors  or by the  Chairman  of the Board,  the
President, a Vice Chairman of the Board or the Treasurer.

      Section  4.  Assistant  Treasurers  shall have such of the  authority  and
perform such of the duties of the  Treasurer as may be provided in these by-laws
or assigned to them by the Board of Directors or the Chairman of the Board or by
the Treasurer upon the approval of the Chairman of the Board, the President or a
Vice Chairman of the Board.  During the  Treasurer's  absence or inability,  his
authority and duties shall be possessed by such Assistant Treasurer or Assistant
Treasurers as the Board of Directors,  the Chairman of the Board,  the President
or a Vice Chairman of the Board may designate.

      Section 5. The Board of Directors  may require the Treasurer and Assistant
Treasurers to give such security for the faithful performance of their duties as
the Board shall from time to time determine.


<PAGE>

                                   ARTICLE X.

                Duties of the Secretary and Assistant Secretaries

      Section 1. The  Secretary  shall send  notice to the  shareholders  of all
annual and special meetings, and to the Directors of meetings of the Board where
notice is required to be given; and he shall perform such other duties as may be
required of him by the Chairman of the Board or Board of Directors,  and such as
usually appertain to the office of Secretary.

      Section 2. The  Secretary or in his absence an Assistant  Secretary  shall
keep an accurate  record of the proceedings of the Board of Directors and of the
Executive  Committee,  and of all meetings of  shareholders,  and shall have the
custody of the seal of the company and affix it to all instruments requiring the
seal.

      Section 3.  Assistant  Secretaries  shall have such of the  authority  and
perform such of the duties of the  Secretary as may be provided in these by-laws
or assigned to them by the Board of Directors or the Chairman of the Board or by
the Secretary upon the approval of the Chairman of the Board, the President or a
Vice Chairman of the Board.  During the  Secretary's  absence or inability,  his
authority and duties shall be possessed by such Assistant Secretary or Assistant
Secretaries as the Board of Directors,  the Chairman of the Board, the President
or a Vice Chairman of the Board may designate.


                                   ARTICLE XI.

                            Duties of the Controller

      The Controller  shall be the principal  accounting  officer of the company
and shall perform such duties as may be required of him by the Chairman of the
Board or Board of Directors.


                                  ARTICLE XII.

                               Transfer of Shares


      Section  1.  Certificates  for  shares  shall be issued by the  Treasurer.
Shares shall be  transferable  only on the record of shareholders of the company
by  the  holder  thereof  in  person  or by  attorney,  upon  surrender  of  the
outstanding  certificate  therefor.  This requirement  shall be embodied in each
certificate.

      Section 2. In case of the loss of a certificate,  a new certificate may be
issued upon such terms as the Board of Directors may prescribe.


<PAGE>

                                  ARTICLE XIII.

                    Indemnification of Directors and Officers

      The company is  authorized,  by (i) a resolution of  shareholders,  (ii) a
resolution   of   Directors,   or  (iii)  an   agreement   providing   for  such
indemnification,  to the fullest extent  permitted by applicable law, to provide
indemnification and to advance expenses to its Directors and officers in respect
of claims,  actions,  suits or proceedings based upon, arising from, relating to
or by reason of the fact that any such  Director or officer  serves or served in
such  capacity  with the  corporation  or at the  request of the  company in any
capacity with any other enterprise.


                                  ARTICLE XIV.

                                      Seal

      The common seal of the company shall be in the following form.


<PAGE>

                                   ARTICLE XV.

                                   Amendments

      These by-laws may be amended by the shareholders at any meeting; or by the
Board of  Directors at any meeting by a majority  vote of the full Board,  or at
two successive meetings by a majority vote of a quorum present.  The notice of a
special meeting of the Board at which such action is to be taken shall set forth
the substance of the proposed amendment.

</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-10
<SEQUENCE>3
<DESCRIPTION>EXHIBIT (10)(I)1
<TEXT>



                      SEPARATION AND DISTRIBUTION AGREEMENT

                                  BY AND AMONG

                                   AT&T CORP.,

                            LUCENT TECHNOLOGIES INC.

                                       AND

                                 NCR CORPORATION



                        DATED AS OF FEBRUARY 1, 1996 AND
                           AMENDED AND RESTATED AS OF
                                 MARCH 29, 1996


<PAGE>

                      SEPARATION AND DISTRIBUTION AGREEMENT


                  THIS  SEPARATION  AND  DISTRIBUTION  AGREEMENT,  dated  as  of
February 1, 1996,  as amended and restated as of March 29, 1996, is by and among
AT&T,  Lucent and NCR.  Capitalized  terms used herein and not otherwise defined
shall have the respective meanings assigned to them in Article I hereof.


                  WHEREAS, the Board of Directors of AT&T has determined that it
is in the  best  interests  of AT&T  and its  shareholders  to  separate  AT&T's
existing businesses into three independent businesses;

                  WHEREAS,  in furtherance  of the foregoing,  it
is appropriate
and desirable to transfer the Lucent Assets to Lucent and its
Subsidiaries  and
to cause Lucent and its  Subsidiaries to assume the Lucent
Liabilities,  all as
more fully described in this Agreement and the Ancillary
Agreements;

                  WHEREAS, the Board of Directors of AT&T has further determined
that it is appropriate and desirable,  on the terms and conditions  contemplated
hereby,  to cause  Lucent  to offer  and sell for its own  account  in the IPO a
limited number of shares of Lucent Common Stock,  and  subsequently  for AT&T to
distribute to holders of shares of AT&T Common Stock the  outstanding  shares of
Lucent Common Stock owned directly or indirectly by AT&T;

                  WHEREAS, the Distribution is intended to qualify
as a tax-free
spin-off under Section 355 of the Code;

                  WHEREAS,   it  is  also  expected  that,   following   certain
additional  transfers of Assets and  assignments and assumptions of Liabilities,
AT&T will  distribute to its  shareholders  all of the capital stock of NCR held
directly or indirectly by AT&T and that, in connection  therewith,  AT&T and NCR
will  enter  into such  additional  agreements  as may be  necessary  to address
matters not addressed by this Agreement or the Ancillary Agreements; and

                  WHEREAS,  it is  appropriate  and  desirable  to set forth the
principal corporate transactions required to effect the Separation,  the IPO and
the  Distribution  and certain other agreements that will govern certain matters
relating to the Separation, the IPO and the Distribution and the relationship of
AT&T,  Lucent, NCR and their respective  Subsidiaries  following the IPO and the
Distribution.

                  NOW,  THEREFORE,  the parties,  intending to be
legally bound,
agree as follows:

                                    ARTICLE I
                                   DEFINITIONS

                  For the purpose of this  Agreement the  following  terms shall
have the following meanings:

<PAGE>

                  1.1.  ACTION  means any  demand,  action,  suit,  countersuit,
arbitration,  inquiry,  proceeding  or  investigation  by or before any federal,
state, local, foreign or international Governmental Authority or any arbitration
or mediation tribunal.

                  1.2. AFFILIATE of any Person means a Person that controls,  is
controlled by, or is under common control with such Person.
As used herein,
"control" means the possession,  directly or indirectly,  of the power to direct
or cause the direction of the  management  and policies of such entity,  whether
through  ownership  of voting  securities  or other  interests,  by  contract or
otherwise.

                  1.3.  AGENT means the  distribution  agent to
be  appointed by
AT&T to distribute to the shareholders of AT&T the shares of
Lucent Common Stock
held by AT&T pursuant to the Distribution.

                  1.4. AGREEMENT means this Separation and
Distribution
Agreement, including all of the Schedules hereto.

                  1.5. AMERICAN RIDGE means American Ridge
Insurance Company, a
Vermont corporation.


                  1.6.  ANCILLARY  AGREEMENTS means the deeds, lease assignments
and assumptions,  leases, subleases and sub-subleases,  and the supplemental and
other  agreements and instruments  related  thereto,  substantially in the forms
attached  as  Schedule  2.5,  the  AT&T  General  Purchase   Agreement  and  the
supplemental and other agreements related thereto,  the Brand License Agreement,
the Employee Benefits  Agreement,  the Interim Services and Systems  Replication
Agreement, the NCR Volume Purchase Agreement, the Patent Assignments and related
agreements  regarding  powers  of  attorney,  the  Patent  Defensive  Protection
Agreements,  the Patent Joint Ownership Agreement, the Patent License Agreement,
the Tax  Sharing  Agreement,  the  Technology  Access  and  Development  Project
Agreement,  the  Technology  Assignment  and  Joint  Ownership  Agreements,  the
Technology  License  Agreement,  the Trade Dress  Assignment,  the Trademark and
Service  Mark  Assignment,  the VTNS  Agreement,  and the  agreements  and other
documents comprising the Non-U.S. Plan.


                  1.7. APPLICABLE DEADLINE has the meaning set
forth in Section
9.3(b).

                  1.8. ARBITRATION ACT means the United States
Arbitration Act,
9 U.S.C. Sections 1-14, as the same may be amended from time to
time.

                  1.9. ARBITRATION DEMAND DATE has the meaning set
forth in
Section 9.3(a).

                  1.10. ARBITRATION DEMAND NOTICE has the meaning
set forth in
Section 9.3(a).

                  1.11.  ASSETS means assets,  properties and rights  (including
goodwill),  wherever  located  (including in the  possession of vendors or other
third  parties  or  elsewhere),  whether  real,  personal  or  mixed,  tangible,
intangible or  contingent,  in each case whether or not recorded or reflected or
required  to be  recorded or  reflected  on the books and  records or  financial
statements of any Person, including the following:

                  (a) all accounting and other books,  records and
files whether
         in paper, microfilm,  microfiche,  computer tape or disc,
magnetic tape
         or any other form;


<PAGE>

                  (b)  all  apparatus,   computers  and  other
electronic  data
         processing equipment, fixtures, machinery, equipment,
furniture, office
         equipment, automobiles, trucks, aircraft, rolling stock,
vessels, motor
         vehicles and other transportation equipment, special and
general tools,
         test  devices,  prototypes  and  models  and  other
tangible  personal
         property;

                  (c) all inventories of materials, parts, raw
materials,
         supplies, work-in-process and finished goods and products;

                  (d)  all  interests  in  real  property  of
whatever  nature,
         including  easements,  whether  as  owner,  mortgagee
or  holder  of a
         Security  Interest  in  real  property,   lessor,
sublessor,   lessee,
         sublessee or otherwise;

                  (e)  all  interests  in any  capital  stock  or
other  equity
         interests of any  Subsidiary  or any other  Person,  all
bonds,  notes,
         debentures or other  securities  issued by any
Subsidiary or any other
         Person,  all loans,  advances or other  extensions of
credit or capital
         contributions  to any  Subsidiary  or any  other  Person
and all other
         investments in securities of any Person;

                  (f) all license agreements,  leases of personal
property, open
         purchase  orders  for  raw  materials,  supplies,  parts
or  services,
         unfilled  orders for the  manufacture  and sale of
products  and other
         contracts, agreements or commitments;

                  (g) all deposits, letters of credit and
performance and surety
         bonds;

                  (h) all written technical information,  data,
specifications,
         research and development information,  engineering
drawings,  operating
         and  maintenance  manuals,  and  materials  and
analyses  prepared  by
         consultants and other third parties;

                  (i) all domestic and foreign patents,
copyrights, trade names,
         trademarks, service marks and registrations and
applications for any of
         the foregoing, mask works, trade secrets, inventions,
other proprietary
         information  and licenses from third Persons  granting
the right to use
         any of the foregoing;

                  (j) all computer  applications,  programs and
other  software,
         including operating software, network software,
firmware,  middleware,
         design software, design tools, systems documentation and
instructions;

                  (k) all cost  information,  sales and pricing
data,  customer
         prospect lists, supplier records, customer and supplier
lists, customer
         and vender data, correspondence and lists, product
literature, artwork,
         design,  development  and  manufacturing  files,  vendor
and  customer
         drawings, formulations and specifications,  quality
records and reports
         and  other  books,  records,   studies,  surveys,
reports,  plans  and
         documents;

                  (l) all prepaid expenses, trade accounts and
other accounts
         and notes receivables;

                  (m) all rights under  contracts or  agreements,
all claims or
         rights against any Person arising from the ownership of
any Asset,  all
         rights in connection with any bids or offers and all
claims,  choses in
         action or similar rights, whether accrued or contingent;


<PAGE>

                  (n) all rights under insurance policies and all
rights in the
         nature of insurance, indemnification or contribution;

                  (o) all  licenses  (including  radio  and
similar  licenses),
         permits,  approvals  and  authorizations  which have been
issued by any
         Governmental Authority;

                  (p) cash or cash equivalents, bank accounts,
lock boxes and
         other deposit arrangements; and

                  (q) interest rate, currency,  commodity or other
swap, collar,
         cap or other hedging or similar agreements or
arrangements.

                  1.12. AT&T means AT&T Corp., a New York
corporation.

                  1.13. AT&T COMMON STOCK means the Common Stock,
$1.00 par
value per share, of AT&T.

                  1.14. AT&T CP RATE during any month of determination  shall be
equal to the weighted  average  rate on all AT&T  commercial  paper  (across all
maturities) for such month.

                  1.15.  AT&T  GENERAL  PURCHASE  AGREEMENT
means  the  General
Purchase Agreement, dated as of the date hereof, as amended, by
and between AT&T
and Lucent.

                  1.16.  AT&T GROUP means AT&T and each  Person  (other than any
member of the Lucent Group) that is an Affiliate of AT&T  immediately  after the
Closing Date (including any member of the NCR Group).

                  1.17. AT&T INDEMNITEES has the meaning set forth
in Section
5.2.

                  1.18.  AT&T  LABORATORIES  means the  Assets  of  AT&T's  Bell
Laboratories  division described or listed on Schedule 1.18 and any other Assets
of AT&T's Bell Laboratories  division that primarily relate to the AT&T Services
Business or the NCR Business.

                  1.19.  AT&T  SERVICES  BUSINESS  means:  (a) the  business and
operations of the telecommunications services divisions and Subsidiaries and the
financial  services and leasing  divisions and  Subsidiaries  of AT&T consisting
principally of the Communications  Services Group, AT&T Wireless Services,  Inc.
and its Subsidiaries,  Universal Card Services, Inc. and its Subsidiaries,  AT&T
Capital  Corporation and its Subsidiaries,  AT&T Solutions,  AT&T  Laboratories,
Submarine Systems and, subject to Section 2.9(a),  AT&T Ventures;  (b) except as
otherwise  expressly provided herein,  any terminated,  divested or discontinued
businesses  or  operations  that at the  time  of  termination,  divestiture  or
discontinuation  primarily  related  to  the  AT&T  Services  Business  as  then
conducted;  and (c) the  terminated,  divested or  discontinued  businesses  and
operations listed or described on Schedule 1.19.

                  1.20.  AT&T SERVICES GROUP means each member of
the AT&T Group
other than any member of the NCR Group.

                  1.21. AT&T VENTURES means AT&T Ventures, a
limited
partnership.

                  1.22. ATTI means AT&T International Inc., a
Delaware
corporation.


<PAGE>

                  1.23.   BRAND  LICENSE   AGREEMENT  means  the
Brand  License
Agreement, dated as of the date hereof, by and between AT&T and
Lucent.

                  1.24.  CHANGE  OF  CONTROL  of  any  Person  means  any of the
following: (a) the consummation of a merger, consolidation,  or similar business
combination  involving  such Person,  or a sale or other  disposition  of all or
substantially  all of the  assets of such  Person;  (b) the  acquisition  by any
individual,  entity or group (within the meaning of Section 13(d)(3) or 14(d)(2)
of the  Securities  Exchange Act of 1934,  as amended) of  beneficial  ownership
(within the meaning of Rule 13d-3  promulgated under such Act) of 40% or more of
either (i) the then outstanding  shares of common stock of such Person,  or (ii)
the combined  voting power of the then  outstanding  voting  securities  of such
Person  entitled  to  vote  generally  in  the  election  of  directors;  or (c)
individuals who, as of the Distribution Date,  constitute the Board of Directors
of such Person (the  "Incumbent  Board")  cease for any reason to  constitute at
least a majority of such Board; provided,  however, that any individual becoming
a director  subsequent to the Distribution  Date (other than any such individual
whose initial assumption of office occurs as a result of an actual or threatened
election  contest  with respect to the election or removal of directors or other
actual or threatened  solicitation of proxies or consents by or on behalf of any
Person other than the Board) whose  election or  nomination  for election by the
stockholders of such Person was approved by a vote of at least a majority of the
directors then comprising the Incumbent Board shall be considered as though such
individual were a member of the Incumbent Board.

                  1.25. CLOSING means the receipt by Lucent of the
net proceeds
of the IPO in accordance with the terms of the Underwriting
Agreement.

                  1.26. CLOSING DATE means the first time at which any shares of
Lucent  Common  Stock  are  sold  to the  Underwriters  pursuant  to the  IPO in
accordance with the terms of the Underwriting Agreement.

                  1.27. CODE means the Internal Revenue Code of
1986, as
amended.

                  1.28. COMMISSION means the Securities and
Exchange Commission.

                  1.29. CONSENTS means any consents, waivers or
approvals from,
or notification requirements to, any third parties.

                  1.30.   CONTINGENT  CLAIM   COMMITTEE,
CONTINGENT  GAIN  AND
CONTINGENT LIABILITIES have the respective meanings set forth in
Section 6.1.

                  1.31. CPR means the Center for Public Resources.

                  1.32. DELAYED TRANSFER ASSETS means any Lucent Assets that are
expressly  provided  in  this  Agreement  or  any  Ancillary   Agreement  to  be
transferred after the date of this Agreement.

                  1.33.   DELAYED   TRANSFER   LIABILITIES   means  any   Lucent
Liabilities  that are  expressly  provided in this  Agreement  or any  Ancillary
Agreement to be assumed after the date of this Agreement.

                  1.34.  DETERMINATION  REQUEST means a written  request made to
the Contingent Claim Committee,  pursuant to Section 5.5(b), for a determination
as to whether a Third Party Claim specified in such request constitutes a Shared
Contingent Liability.


<PAGE>

                  1.35.  DISTRIBUTION  means the  distribution  by AT&T on a pro
rata basis to holders of AT&T Common Stock of all of the  outstanding  shares of
Lucent  Common  Stock  owned by AT&T on the  Distribution  Date as set  forth in
Article IV.

                  1.36. DISTRIBUTION DATE means the date
determined pursuant to
Section 4.1 on which the Distribution occurs.

                  1.37. EFFECTIVE IPO DATE means the date on which
the IPO
Registration Statement is declared effective by the Commission.

                  1.38. EFFECTIVE TIME means 5:00 p.m., Eastern
Standard Time or
Eastern Daylight Time (whichever  shall be then in effect),  on
the Distribution
Date.

                  1.39.  EMPLOYEE BENEFITS AGREEMENT means the
Employee Benefits
Agreement,  dated as of the date  hereof,  as amended,  by and
between  AT&T and
Lucent.

                  1.40.  ENVIRONMENTAL  LAW means  any  federal,  state,  local,
foreign or international statute,  ordinance,  rule, regulation,  code, license,
permit,  authorization,  approval,  consent,  common  law  (including  tort  and
environmental   nuisance  law),  legal  doctrine,   order,   judgment,   decree,
injunction,  requirement or agreement with any  Governmental  Authority,  now or
hereafter in effect  relating to health,  safety,  pollution or the  environment
(including ambient air, surface water,  groundwater,  land surface or subsurface
strata) or to  emissions,  discharges,  releases or  threatened  releases of any
substance  currently or at any time  hereafter  listed,  defined,  designated or
classified as hazardous,  toxic, waste,  radioactive or dangerous,  or otherwise
regulated, under any of the foregoing, or otherwise relating to the manufacture,
processing,  distribution,  use,  treatment,  storage,  disposal,  transport  or
handling  of any such  substances,  including  the  Comprehensive  Environmental
Response,   Compensation  and  Liability  Act,  the  Superfund   Amendments  and
Reauthorization  Act  and  the  Resource   Conservation  and  Recovery  Act  and
comparable provisions in state, local, foreign or international law.

                  1.41. ENVIRONMENTAL LIABILITIES means all Liabilities relating
to,  arising  out of or  resulting  from any  Environmental  Law or  contract or
agreement  relating to  environmental,  health or safety matters  (including all
removal,   remediation  or  cleanup  costs,  investigatory  costs,  governmental
response costs,  natural resources  damages,  property damages,  personal injury
damages,   costs  of  compliance   with  any   settlement,   judgment  or  other
determination of Liability and indemnity,  contribution or similar  obligations)
and all costs and expenses  (including  allocated costs of in-house  counsel and
other  personnel),  interest,  fines,  penalties or other monetary  sanctions in
connection therewith.

                  1.42. ESCALATION NOTICE has the meaning set
forth in Section
9.2.

                  1.43. EXCESS PORTION has the meaning specified
in Section 6.1.

                  1.44.  EXCHANGE ACT means the Securities Exchange Act of 1934,
as amended, together with the rules and regulations promulgated thereunder.

                  1.45. EXCLUDED ASSETS has the meaning set forth
in Section
2.2(b).

                  1.46. EXCLUDED LIABILITIES has the meaning set
forth in
Section 2.3(b).


<PAGE>

                  1.47.   EXCLUSIVE  AT&T   CONTINGENT   GAIN,
EXCLUSIVE  AT&T
CONTINGENT  LIABILITY,   EXCLUSIVE  LUCENT  CONTINGENT  GAIN,
EXCLUSIVE  LUCENT
CONTINGENT  LIABILITY,  EXCLUSIVE NCR CONTINGENT GAIN,  EXCLUSIVE
NCR CONTINGENT
LIABILITY AND EXCLUSIVE  CONTINGENT  LIABILITY have the
respective  meanings set
forth in Section 6.1.

                  1.48.  FINANCING  FACILITY means the commercial
paper facility
and related credit agreement to be entered into prior to the
Closing Date by and
among  AT&T,  Lucent,  and an agent or  co-agents  selected  by
AT&T and Lucent,
pursuant to which,  prior to the Closing Date, AT&T will issue  commercial paper
or otherwise  borrow an amount  determined  by AT&T and, as of the Closing Date,
Lucent will become the sole  obligor and AT&T will have no further  liability or
obligation thereunder.

                  1.49.  GOVERNMENTAL  APPROVALS  means any notices,  reports or
other filings to be made, or any consents, registrations,  approvals, permits or
authorizations to be obtained from, any Governmental Authority.

                  1.50.  GOVERNMENTAL  AUTHORITY shall mean any federal,  state,
local,  foreign or  international  court,  government,  department,  commission,
board,  bureau,  agency,   official  or  other  regulatory,   administrative  or
governmental authority.

                  1.51. GROUP means any of the AT&T Services
Group, the Lucent
Group or the NCR Group, as the context requires.

                  1.52. IDENTIFIED BELL LABS SERVICES means:

                  (a)  environmental,  health and safety
services  provided  by
         Lucent  Bell  Laboratories,   including  (i)
compatibility,   product
         compliance,   telephone  network   interconnect,
product  design  and
         mandatory  standards  consultation  services,   (ii)
wireless  safety,
         radiation  protection and product safety  services,
(iii)  groundwater
         remediation services, (iv) environmental and energy
management, and (v)
         industrial hygiene, safety and toxicology;

                  (b)  technical   support  services  provided
by  Lucent  Bell
         Laboratories,   including  (i)  technical   cataloging
and  processing
         services and (ii) product design shop services;

                  (c) additional research and similar services
provided by
         Lucent Bell Laboratories;

                  (d)  information   systems   reengineering
center  services,
         including  systems design and  programming  support for
human resource,
         billing, procurement and facilities systems; and

                  (e) services provided by Lucent Bell
Laboratories  relating to
         projects  initiated prior to the date hereof but not
completed prior to
         the Closing Date.

                  1.53. INDEMNIFYING PARTY has the meaning set
forth in Section
5.4(a).

                  1.54. INDEMNITEE has the meaning set forth in
Section 5.4(a).

                  1.55. INDEMNITY PAYMENT has the meaning set
forth in Section
5.4(a).


<PAGE>

                  1.56. INFORMATION means information, whether or not patentable
or copyrightable,  in written,  oral, electronic or other tangible or intangible
forms,  stored  in any  medium,  including  studies,  reports,  records,  books,
contracts,   instruments,   surveys,  discoveries,  ideas,  concepts,  know-how,
techniques,  designs,  specifications,  drawings, blueprints,  diagrams, models,
prototypes,  samples, flow charts, data, computer data, disks, diskettes, tapes,
computer   programs  or  other  software,   marketing  plans,   customer  names,
communications  by  or  to  attorneys  (including   attorney-client   privileged
communications),  memos and other materials prepared by attorneys or under their
direction  (including  attorney work product),  and other technical,  financial,
employee or business information or data.

                  1.57.  INSURANCE POLICIES means the insurance policies written
by insurance carriers  unaffiliated with AT&T pursuant to which Lucent or one or
more of its  Subsidiaries  (or their  respective  officers or directors) will be
insured parties after the Closing Date.

                  1.58. INSURANCE PROCEEDS means those monies:

                  (a) received by an insured from an insurance
carrier;

                  (b) paid by an insurance carrier on behalf of
the insured; or

                  (c) received (including by way of set off) from
American Ridge
         or any of its  Subsidiaries  or from any third  party in
the  nature of
         insurance,  contribution or indemnification in respect of
any Liability
         (other than pursuant to or in connection with any RBOC
Agreement);

in any such case net of any applicable premium  adjustments  (including reserves
and retrospectively  rated premium adjustments) and net of any costs or expenses
(including  allocated costs of in-house counsel and other personnel) incurred in
the collection thereof.

                  1.59. INTERIM SERVICES AND SYSTEMS REPLICATION
AGREEMENT means
the Interim  Services and Systems  Replication  Agreement,  dated
as of the date
hereof, by and among AT&T, Lucent and NCR.

                  1.60.  IPO  means the  initial  public  offering  by Lucent of
shares of Lucent Common Stock pursuant to the IPO Registration Statement.

                  1.61.  IPO  REGISTRATION   STATEMENT  means  the  registration
statement on Form S-1 to be filed under the  Securities  Act,  pursuant to which
the Lucent  Common  Stock to be issued in the IPO will be  registered,  together
with all amendments thereto.

                  1.62. LIABILITIES means any and all losses,  claims,  charges,
debts,  demands,  actions,  causes  of  action,  suits,  damages,   obligations,
payments,  costs and  expenses,  sums of  money,  accounts,  reckonings,  bonds,
specialties,  indemnities  and  similar  obligations,  exonerations,  covenants,
contracts,  controversies,  agreements,  promises, doings, omissions, variances,
guarantees,   make  whole   agreements  and  similar   obligations,   and  other
liabilities,   including  all  contractual  obligations,   whether  absolute  or
contingent,  matured  or  unmatured,  liquidated  or  unliquidated,  accrued  or
unaccrued, known or unknown, whenever arising, and including those arising under
any law, rule, regulation,  Action, threatened or contemplated Action (including
the costs and  expenses  of demands,  assessments,  judgments,  settlements  and
compromises  relating  thereto  and  attorneys'  fees and any and all  costs and
expenses  (including  allocated costs of in-house counsel and other  personnel),
whatsoever


<PAGE>

reasonably  incurred in  investigating,  preparing or defending against any such
Actions or threatened or contemplated  Actions),  order or consent decree of any
Governmental  Authority or any award of any  arbitrator or mediator of any kind,
and those arising under any contract, commitment or undertaking, including those
arising under this Agreement or any Ancillary  Agreement,  in each case, whether
or not  recorded or  reflected  or required to be recorded or  reflected  on the
books and records or financial statements of any Person.


                  1.63. LUCENT means Lucent Technologies Inc., a
Delaware
corporation, formerly known as NS-MPG Inc.


                  1.64. LUCENT ASSETS has the meaning set forth in
Section
2.2(a).

                  1.65.  LUCENT  BALANCE  SHEET means the  audited  consolidated
balance sheet of Lucent, including the notes thereto, as of December 31, 1995.

                  1.66. LUCENT BELL LABORATORIES means the Assets
of AT&T's Bell
Laboratories  division  as of the date  hereof  other  than the
Assets  of AT&T
Laboratories.

                  1.67.  LUCENT BUSINESS means:  (a) the business
and operations
of  the   telecommunications   equipment  divisions  and
Subsidiaries  of  AT&T
consisting  principally  of the  Network  Systems  Group,  the  Global  Business
Communications  Systems Group, the Consumer Products Group, the Microelectronics
Group, AT&T Paradyne and Lucent Bell  Laboratories;  and (b) except as otherwise
expressly provided herein, any terminated,  divested or discontinued  businesses
or operations  that at the time of termination,  divestiture or  discontinuation
primarily related to the Lucent Business as then conducted.

                  1.68. LUCENT COMMON STOCK means the Common
Stock, $.01 par value per share, of Lucent.

                  1.69.  LUCENT  CONTRACTS  means the  following  contracts  and
agreements  to which AT&T or any of its  Affiliates is a party or by which it or
any of its Affiliates or any of their respective Assets is bound, whether or not
in writing, except for any such contract or agreement that is contemplated to be
retained by AT&T or any member of the AT&T Group  pursuant to any  provision  of
this Agreement or any Ancillary Agreement:

                  (a) any supply or vendor contracts or agreements
listed or
         described on Schedule 1.69(a);

                  (b) any contract or agreement  entered into in
the name of, or
         expressly on behalf of, any  division,  business  unit or
member of the
         Lucent Group (other than ATTI or any Person controlled by
ATTI);

                  (c) any contract or agreement that relates
primarily to the
         Lucent Business;

                  (d) federal,  state and local  government and
other  contracts
         and agreements that are listed or described on Schedule
1.69(d) and any
         other  government  contracts or agreements  entered into
after the date
         hereof  and prior to the  Closing  Date that  relate
primarily  to the
         Lucent Business;

                  (e) any contract or agreement to which ATTI or
any Person
         controlled by ATTI is a party (or by which any of the
Assets of ATTI or
         any such Person is


<PAGE>

         bound),  other than (i) any such  contract or  agreement
to which AT&T
         World  Services,  Inc.  is a party  that  primarily
relates  to AT&T's
         EasyLink  Services  business,   AT&T's   International
Correspondence
         Assistance  Program,  or  to  AT&T's  Federal  Systems,
including  the
         contracts and  agreements  listed or described on
Schedule  1.69(e)(i),
         (ii) any  joint  venture  or other  contract  or
agreement  listed  or
         described  on  Schedule  1.69(e)(ii),  and (iii) any
such  contract  or
         agreement that relates  primarily to the AT&T Services
Business or the
         NCR Business;

                  (f)  any  contract  or  agreement
representing   capital  or
         operating  equipment lease obligations  reflected on the
Lucent Balance
         Sheet,  including  obligations  as  lessee  under  those
contracts  or
         agreements  listed  on  Schedule  1.69(f)  (as  such
Schedule  may  be
         supplemented  by mutual  agreement of the parties after
the date hereof
         and prior to the Closing Date to assign capital and
operating equipment
         lease  obligations  executed and delivered after the date
of the Lucent
         Balance Sheet);

                  (g) any  contract or  agreement  that is
otherwise  expressly
         contemplated  pursuant  to  this  Agreement  or any  of
the  Ancillary
         Agreements to be assigned to Lucent or any member of the
Lucent Group;

                  (h) (i) any guarantee, indemnity,
representation,  warranty or
         other  Liability of any member of the Lucent Group or the
AT&T Group in
         respect  of any other  Lucent  Contract,  any Lucent
Liability  or the
         Lucent  Business   (including   guarantees  of
financing  incurred  by
         customers  or other  third  parties in  connection  with
purchases  of
         products or services from the Lucent Business), and (ii)
the contracts,
         agreements  and  other  documents   listed  or
described  on  Schedule
         1.69(h));

                  (i) the arrangements between AT&T and NEC Corp.
with respect
         to the joint venture known as AT&T Japan Semiconductor
Marketing, Ltd.;
         and

                  (j) any Lucent OFL.


No RBOC Agreement shall be deemed to be a Lucent Contract,  except to the extent
expressly set forth herein.


                  1.70. LUCENT GROUP means Lucent, each Subsidiary of Lucent and
each other Person that is either  controlled  directly or  indirectly  by Lucent
immediately  after the Closing Date or that is  contemplated to be controlled by
Lucent pursuant to the Non-U.S. Plan (other than any Person that is contemplated
not to be controlled by Lucent pursuant to the Non-U.S. Plan).

                  1.71. LUCENT INDEMNITEES has the meaning set
forth in Section
5.3(a).

                  1.72. LUCENT LIABILITIES has the meaning set
forth in Section
2.3(a).

                  1.73. LUCENT OFL'S has the meaning set forth in
Section
7.3(a).

                  1.74. NCR means NCR  Corporation  (formerly  named AT&T Global
Information Solutions Company), a Maryland corporation.

                  1.75. NCR BUSINESS means: (a) the computer
products, computer
systems, data processing and information solutions business and
operations as
conducted by NCR and its Subsidiaries; (b) except as otherwise
expressly
provided herein, any terminated, divested


<PAGE>

or  discontinued  businesses or operations (i) that at the time of  termination,
divestiture  or  discontinuation  primarily  related to the NCR Business as then
conducted,  or (ii) that were  conducted  by NCR, or any Person that at any time
was an Affiliate of NCR,  prior to the  acquisition  of NCR by AT&T; and (c) the
terminated,  divested  or  discontinued  businesses  and  operations  listed  or
described on Schedule 1.75.

                  1.76. NCR COMMON STOCK means the Common Stock,
par value $5.00
per share, of NCR.

                  1.77. NCR COVERED LIABILITIES has the meaning
set forth in
Section 5.3(b).

                  1.78. NCR DISTRIBUTION means the distribution by AT&T on a pro
rata basis to holders of AT&T Common Stock of all of the  outstanding  shares of
NCR owned directly or indirectly by AT&T.

                  1.79. NCR GROUP means NCR, each Subsidiary of
NCR and each
other Person that is either controlled directly or indirectly by
NCR immediately
after the Closing or that is contemplated to be controlled by NCR
pursuant to
the Non-U.S. Plan.

                  1.80. NCR INDEMNITEES has the meaning set forth
in Section
5.2.

                  1.81. NCR VOLUME PURCHASE  AGREEMENT means the
Volume Purchase
Agreement, dated as of the date hereof, by and between NCR and
Lucent.

                  1.82. NYSE means The New York Stock Exchange,
Inc.

                  1.83.  NASSAU  METALS   LIABILITIES  means  all  Environmental
Liabilities  primarily  relating  to,  arising  out  of or  resulting  from  the
operations of AT&T Nassau Metals Corporation, as conducted at any time prior to,
on or after the Closing Date.

                  1.84. NON-LUCENT ASSETS means any Assets of AT&T or any of its
Affiliates (including any member of the NCR Group) other than Lucent Assets.

                  1.85. NON-U.S. PLAN means the Non-U.S.  Plan, comprised of the
series of transactions, agreements and other arrangements, pursuant to which the
non-U.S.  Assets and Liabilities of AT&T and its Affiliates have been or will be
assigned among the parties hereto,  which are set forth or described in Schedule
1.85 (as such  Schedule  may be  supplemented  by mutual  consent of the parties
prior to the Closing Date).

                  1.86. OFL'S mean all liabilities,  obligations,  contingencies
and  instruments  and other  Liabilities  of any  member of the AT&T  Group of a
financial  nature with third parties existing on the date hereof or entered into
or  established  between the date hereof and the Closing Date,  including any of
the following:

                         (a) foreign exchange contracts;

                  (b) letters of credit;

                  (c) guarantees of third party loans to customers;

                  (d) surety bonds (excluding surety for workers'
compensation
         self-insurance);


<PAGE>

                  (e) interest support agreements on third party
loans to
         customers;


                  (f) performance bonds or guarantees issued by
third parties;

                  (g) swaps or other derivatives contracts; and

                  (h) recourse arrangements on the sale of
receivables or notes.


                  1.87. OTHER DISCONTINUED OPERATIONS means (a) the business and
operations  as conducted  by any RBOC prior to its  divestiture  from AT&T,  (b)
Cincinnati Bell  Concession  Service and (c) any other  terminated,  divested or
discontinued  businesses and operations of AT&T,  Lucent or NCR or of any former
or current Affiliate of AT&T, Lucent or NCR (whether such business or operations
were  terminated,  divested or discontinued  prior to, at the time or after such
Person was, became or ceased to be an Affiliate of AT&T, Lucent or NCR) that are
not listed or described  in, or on the  Schedules  to, the  definitions  of AT&T
Services Business, Lucent Business or NCR Business or on Schedule 2.3(a)(v).



                  1.88.  PATENT  ASSIGNMENTS  means the six Patent  Assignments,
effective as of March 29, 1996, executed and delivered by AT&T to Lucent, NCR to
AT&T, AT&T to NCR, Lucent to NCR, and Lucent to AT&T.



                  1.89.  PATENT  DEFENSIVE  PROTECTION  AGREEMENTS means the two
Defensive Protection Agreements,  effective as of March 29, 1996, by and between
AT&T and Lucent, and by and between Lucent and NCR, respectively.



                  1.90. PATENT JOINT OWNERSHIP  AGREEMENT means
the Patent Joint
Ownership  Agreement,  effective as of March 29,  1996,  by and
between AT&T and
Lucent.



                  1.91.  PATENT  LICENSE  AGREEMENT  means  the
Patent  License
Agreement, effective as of March 29, 1996, by and among AT&T,
Lucent and NCR.


                  1.92.  PERSON  means  an  individual,  a  general  or  limited
partnership,  a  corporation,  a  trust,  a  joint  venture,  an  unincorporated
organization,  a limited liability entity, any other entity and any Governmental
Authority.

                  1.93.  PRIME RATE means the rate which  Chemical  Bank (or any
successor  thereto or other major money center  commercial bank agreed to by the
parties  hereto)  announces  from time to time as its prime  lending rate, as in
effect from time to time.

                  1.94. PROSPECTUS means each preliminary, final
or supplemental
prospectus forming a part of the IPO Registration Statement.

                  1.95. RBOC means each of Ameritech Corporation,
Bell Atlantic
Corporation,  BellSouth Corporation,  NYNEX Corporation,  Pacific Telesis Group,
SBC  Communications  Inc.,  and U S West,  Inc.,  and each of  their  respective
Affiliates, and the respective successors and assigns of any of the foregoing.

                  1.96.   RBOC   AGREEMENTS   means  the  Agreement   Concerning
Contingent Liabilities,  Tax Matters and Termination of Certain Agreements among
AT&T, and the Bell System Operating  Companies  Regional  Holding  Companies and
affiliates, and the Agreement Regarding Sharing of Environmental Liabilities.


<PAGE>

                  1.97. RBOC LIABILITY means any Liability of any
member of any
Group relating to, arising out of or resulting from any RBOC
Agreement.

                  1.98. RBOC PLAN means the Plan of Reorganization
filed on
December 16, 1982, in the United States District Court for the
District of
Columbia in United States v. Western Electric Co., Inc., Civil
Action No.
82-0192, as modified by the Court's orders and as thereafter
amended, modified
or supplemented.

                  1.99.  RECORD  DATE means the close of business on the date to
be determined by the AT&T Board of Directors as the record date for  determining
shareholders  of AT&T  entitled to receive  shares of Lucent Common Stock in the
Distribution.

                  1.100. RELATED EXCLUSIVE CONTINGENT LIABILITIES
has the
meaning set forth in Section 6.1.

                  1.101.   RETAINED  RECEIVABLES  means  any  and  all  accounts
receivable  and other  rights to payment for goods or services  sold,  leased or
otherwise  provided  in the conduct of the Lucent  Business  that as of the date
hereof are payable by a third Person to AT&T, whether past due, due or to become
due on or prior to June 30, 1996,  including any  interest,  sales or use taxes,
finance  charges,  late or returned  check charges and other  obligations of the
account debtor with respect  thereto,  and any proceeds of any of the foregoing,
that are (a) reflected in the CBS System for accounts  receivable arising in the
Global Business  Communications Systems Group, (b) reflected in the CARMS system
for  accounts   receivable   arising  in  the  Network   Systems  Group  or  the
Microelectronics  Group,  or (c)  accounts  receivables  arising in the Consumer
Products  Group  if the  account  debtor  is one of the 20  largest  third-party
domestic  customers  of the  Consumer  Products  Group  as of the  date  hereof;
provided,  however,  that any accounts receivable arising in the Network Systems
Group or the  Microelectronics  Group shall not be Retained  Receivables if such
accounts receivable were more than 90 days past due as of the date hereof.

                  1.102.  RIDGE LUCENT  POLICIES  means any  insurance  policies
written  by  American  Ridge or any  other  captive  insurance  company  of AT&T
covering the Lucent Business or any member of the Lucent Group.

                  1.103.  SECURITIES  ACT means the  Securities
Act of 1933, as
amended, together with the rules and regulations promulgated
thereunder.

                  1.104.   SECURITY   INTEREST  means  any  mortgage,   security
interest, pledge, lien, charge, claim, option, right to acquire, voting or other
restriction,   right-of-way,   covenant,  condition,   easement,   encroachment,
restriction on transfer, or other encumbrance of any nature whatsoever.

                  1.105.  SEPARATION  means the transfer of the Lucent Assets to
Lucent and its Subsidiaries and the assumption by Lucent and its Subsidiaries of
the Lucent  Liabilities,  all as more fully  described in this Agreement and the
Ancillary Agreements.

                  1.106. SHARED AT&T PERCENTAGE,  SHARED NCR
PERCENTAGE,  SHARED
LUCENT  PERCENTAGE,   SHARED  PERCENTAGE,  SHARED  CONTINGENT
GAIN  AND  SHARED
CONTINGENT LIABILITY have the respective meanings set forth in Section 6.1.


<PAGE>

                  1.107.  SUBMARINE  SYSTEMS  means the Assets,  businesses  and
operations of AT&T's Submarine  Systems,  Inc., and the additional Assets listed
or described in Section 2.2(b)(vi).

                  1.108. SUBSIDIARY of any Person means any corporation or other
organization whether incorporated or unincorporated of which at least a majority
of the securities or interests having by the terms thereof ordinary voting power
to elect at least a  majority  of the board of  directors  or others  performing
similar  functions  with respect to such  corporation or other  organization  is
directly or indirectly  owned or controlled by such Person or by any one or more
of its  Subsidiaries,  or by such  Person  and one or more of its  Subsidiaries;
provided, however that no Person that is not directly or indirectly wholly owned
by any other Person shall be a Subsidiary of such other Person unless such other
Person controls, or has the right, power or ability to control, that Person.

                  1.109. TAX SHARING AGREEMENT means the Tax Sharing  Agreement,
dated as of the date hereof, as amended, by and among AT&T, Lucent and NCR.

                  1.110. TAXES has the meaning set forth in the
Tax Sharing
Agreement.

                  1.111.  TECHNOLOGY  ACCESS AND DEVELOPMENT  PROJECT  AGREEMENT
means the Technology Access and Development  Project Agreement,  dated as of the
date hereof, by and between NCR and Lucent.


                  1.112.  TECHNOLOGY  ASSIGNMENT AND JOINT OWNERSHIP  AGREEMENTS
means the two Technology Assignment and Joint Ownership Agreements, effective as
of March 29, 1996, by and between AT&T and Lucent, and by and among AT&T, Lucent
and NCR, respectively.



                  1.113.  TECHNOLOGY  LICENSE  AGREEMENT  means
the  Technology
License Agreement, effective as of March 29, 1996, by and among
AT&T, Lucent and
NCR.


                  1.114.  TELECOMMUNICATIONS SERVICE means any service providing
the transmission of voice, data, image or other messages,  by radio or by aid of
wire,  cable or other like connection now known or later  developed  between the
points  of  origin  and  reception  of  such  transmission  or by  means  of any
combination of the foregoing,  including  telecommunications  services  commonly
characterized as local, toll (whether intraLATA or interLATA), long distance and
cellular (whether mobile or fixed).

                  1.115. THIRD PARTY CLAIM has the meaning set
forth in Section
5.5(a).

                  1.116. TRADE DRESS ASSIGNMENT means the Trade
Dress
Assignment, dated as of the date hereof, by AT&T to Lucent.

                  1.117.   TRADEMARK  AND  SERVICE  MARK  ASSIGNMENT  means  the
Trademark and Service Mark Assignment,  dated as of the date hereof,  by AT&T to
Lucent.

                  1.118. UNDERWRITERS means the managing
underwriters for the
IPO.

                  1.119. UNDERWRITING AGREEMENT means the underwriting agreement
to be entered into among Lucent and the Underwriters with respect to the IPO.

                  1.120. VALUE has the meaning set forth in
Section 6.1.


<PAGE>

                  1.121.  VTNS  AGREEMENT  means the Virtual
Telecommunications
Network Service Agreement, between AT&T and Lucent, dated as of
the date hereof.

                  1.122.  WORKING  CAPITAL  FACILITY  means the Working  Capital
Agreement to be entered  into by Lucent,  as borrower,  and  Chemical  Bank,  as
Agent,  and the  Lending  Banks  named  therein,  to fund  the  working  capital
requirements of Lucent following the date hereof.

                                   ARTICLE II
                                 THE SEPARATION

                  2.1.  TRANSFER OF ASSETS AND  ASSUMPTION OF  LIABILITIES.  (a)
Each of AT&T and NCR hereby assigns, transfers,  conveys and delivers to Lucent,
and agrees to cause its applicable Subsidiaries to assign, transfer,  convey and
deliver to Lucent, and Lucent hereby accepts from each of AT&T and NCR and their
respective   Subsidiaries,   all  of  AT&T's  and  NCR's  and  their  applicable
Subsidiaries'  respective right, title and interest in all Lucent Assets,  other
than the Delayed Transfer Assets.

                  (b) Lucent hereby assumes and agrees faithfully to perform and
fulfill all the Lucent Liabilities, other than the Delayed Transfer Liabilities,
in accordance with their respective  terms.  Lucent shall be responsible for all
Lucent Liabilities, regardless of when or where such Liabilities arose or arise,
or whether the facts on which they are based  occurred prior to or subsequent to
the date  hereof,  regardless  of where or  against  whom such  Liabilities  are
asserted or determined  (including any Lucent Liabilities  arising out of claims
made by AT&T's,  Lucent's or NCR's respective  directors,  officers,  employees,
agents,  Subsidiaries or Affiliates  against any member of the AT&T Group or the
Lucent Group) or whether  asserted or determined  prior to the date hereof,  and
regardless  of  whether  arising  from or  alleged  to  arise  from  negligence,
recklessness,  violation of law, fraud or misrepresentation by any member of the
AT&T Group or the Lucent Group or any of their respective  directors,  officers,
employees, agents, Subsidiaries or Affiliates.

                  (c)  Each  of the  parties  hereto  agrees  that  the  Delayed
Transfer Assets will be assigned,  transferred,  conveyed and delivered, and the
Delayed Transfer  Liabilities  will be assumed,  in accordance with the terms of
the  agreements  that  provide for such  assignment,  transfer,  conveyance  and
delivery,  or such assumption,  after the date of this Agreement or as otherwise
set forth on Schedule 2.1(c).  Following such assignment,  transfer,  conveyance
and delivery of any Delayed  Transfer  Asset,  or the  assumption of any Delayed
Transfer  Liability,  the applicable  Delayed Transfer Asset or Delayed Transfer
Liability  shall be treated for all purposes of this Agreement and the Ancillary
Agreements as an Lucent Asset or an Lucent Liability, as the case may be.

                  (d) In the  event  that  at any  time  or  from  time  to time
(whether  prior to or after the  Distribution  Date),  any party  hereto (or any
member of such party's respective Group), shall receive or otherwise possess any
Asset that is allocated to any other  Person  pursuant to this  Agreement or any
Ancillary  Agreement,  such  party  shall  promptly  transfer,  or  cause  to be
transferred,  such Asset to the Person so  entitled  thereto.  Prior to any such
transfer, the Person receiving or possessing such Asset shall hold such Asset in
trust for any such other Person.

                  2.2. LUCENT ASSETS. (a) For purposes of this
Agreement,
"Lucent Assets" shall mean (without duplication):


<PAGE>

                  (i) any and all Assets that are expressly
contemplated by this
         Agreement or any  Ancillary  Agreement  (or  Schedule
2.2(a)(i) or any
         other Schedule hereto or thereto) as Assets to be
transferred to Lucent
         or any other member of the Lucent Group;

                  (ii) all issued and outstanding capital stock of
ATTI and any
         and all Assets owned by ATTI or its Subsidiaries as of
the date of the
         transfer of such capital stock to Lucent pursuant to
Section 2.8(b),
         except for the Assets contemplated to be sold or
otherwise transferred
         to any member of the AT&T Group pursuant to the Non-U.S.
Plan;

                  (iii) any Exclusive Lucent Contingent Gain and
any Shared
         Lucent Percentage of any Shared Contingent Gain;

                  (iv) (A) any amounts  actually  paid to AT&T
after the Closing
         Date pursuant to any RBOC Agreement in respect of any
Lucent  Liability
         or any  Nassau  Metals  Liability,  (B) any rights of any
member of the
         Lucent  Group  under  any  RBOC  Agreement  in  respect
of any  Lucent
         Liability or any Nassau  Metals  Liability,  and (C)
subject to Section
         7.1,  any  rights of any member of the  Lucent  Group
under any of the
         Insurance  Policies,  including any rights thereunder
arising after the
         Distribution  Date  in  respect  of any  Insurance
Policies  that  are
         occurrence policies;

                  (v) (A) any Assets that Section  2.5(b)
contemplates  will be
         transferred to, or be retained by, any member of the
Lucent Group,  (B)
         any Lucent  Contracts and (C) all issued and outstanding
capital stock
         of AT&T Nassau Metals  Corporation  and the other
Subsidiaries of AT&T
         listed on Schedule 2.2(a)(v);

                  (vi) any  Assets  reflected  in the  Lucent
Balance  Sheet as
         Assets of Lucent and its  Subsidiaries,  subject to any
dispositions of
         such Assets subsequent to the date of the Lucent Balance
Sheet; and


                  (vii) except as contemplated  by Section
2.5(b),  any and all
         Assets owned or held  immediately  prior to the Closing
Date by AT&T or
         any of its Subsidiaries that are used primarily in the
Lucent Business.
         The  intention of this clause (vii) is only to rectify
any  inadvertent
         omission of transfer or conveyance of any Assets that,
had the parties
         given specific consideration to such Asset as of the date
hereof, would
         have  otherwise  been  classified as a Lucent Asset.  No
Asset shall be
         deemed to be a Lucent  Asset solely as a result of this
clause (vii) if
         such Asset is within the category or type of Asset
expressly covered by
         the subject  matter of an Ancillary  Agreement.  In
addition,  no Asset
         shall be deemed a Lucent  Asset solely as a result of
this clause (vii)
         unless a claim  with  respect  thereto is made by Lucent
on or prior to
         the first anniversary of the Distribution Date.


Notwithstanding the foregoing,  the Lucent Assets shall not in any event include
the Excluded Assets referred to in Section 2.2(b) below.

                  (b) For the purposes of this Agreement,
"Excluded Assets"
shall mean:

                  (i) the Assets listed or described on Schedule
2.2(b)(i);

                         (ii) the Retained Receivables;


<PAGE>

                  (iii) any and all Assets that are  expressly
contemplated  by
         this Agreement or any Ancillary  Agreement (or the
Schedules  hereto or
         thereto) as Assets to be  retained  by AT&T or any other
member of the
         AT&T Group (including the NCR Group);

                  (iv) any contract or agreement described in
clause (e)(i)
         through (e)(iii) of the definition of Lucent Contract;

                  (v)  except  to the  extent  expressly  set
forth in  Section
         2.2(a)(iii) or (iv), respectively, (A) any Contingent
Gains and (B) any
         rights in  respect  of, or  proceeds  received  pursuant
to,  any RBOC
         Agreement; and

                  (vi) all  Assets  (including  land,  buildings,
manufacturing
         equipment and inventory) of the undersea  repeaters
factory of Lucent's
         Microelectronic Group located in Clark, New Jersey.

                  2.3. LUCENT LIABILITIES. (a) For the purposes of
this
Agreement, "Lucent Liabilities" shall mean (without duplication):

                  (i) any and all Liabilities that are expressly
contemplated by
         this Agreement or any Ancillary  Agreement (or the
Schedules  hereto or
         thereto)  as  Liabilities  to be assumed by Lucent or any
member of the
         Lucent Group,  and all  agreements,  obligations and
Liabilities of any
         member of the Lucent Group under this Agreement or any of
the Ancillary
         Agreements;

                  (ii) all  Liabilities  (other than Taxes based
on, or measured
         by  reference   to,  net  income),   including   any
employee-related
         Liabilities  and  Environmental  Liabilities,  primarily
relating  to,
         arising out of or resulting from:

                           (A)  the  operation  of  the  Lucent
Business,   as
                  conducted  at any time prior to, on or after the
Closing  Date
                  (including  any  Liability  relating  to,
arising  out  of or
                  resulting  from  any act or  failure  to act by
any  director,
                  officer,  employee,  agent or  representative
(whether or not
                  such act or  failure  to act is or was  within
such  Person's
                  authority));

                           (B) the  operation of any  business
conducted by any
                  member of the Lucent  Group at any time after
the Closing Date
                  (including  any  Liability  relating  to,
arising  out  of or
                  resulting  from  any act or  failure  to act by
any  director,
                  officer,  employee,  agent or  representative
(whether or not
                  such act or  failure  to act is or was  within
such  Person's
                  authority)); or

                           (C) any Lucent Assets (including any
Lucent Contracts
                  and any real property and leasehold interests);

         in any such case whether arising before, on or after the
Closing Date;

                  (iii) subject to the terms of Article VI, all
Exclusive Lucent
         Contingent  Liabilities and the Shared Lucent  Percentage
of any Shared
         Contingent Liabilities;

                  (iv) all Liabilities  relating to, arising out
of or resulting
         from the Working  Capital  Facility  and, as of the
Closing  Date,  the
         Financing Facility, in each case


<PAGE>

         other than any third party costs and expenses incurred by
any member of
         the AT&T Group;


                  (v) all  Liabilities  relating to, arising out
of or resulting
         from any of the  terminated,  divested or  discontinued
businesses and
         operations listed or described on Schedule 2.3(a)(v);

                  (vi) all  Liabilities of ATTI or its
Subsidiaries,  as of the
         date of the transfer of the capital stock of ATTI to
Lucent pursuant to
         Section 2.8(b),  except for the Liabilities  contemplated
to be assumed
         by any member of the AT&T Group pursuant to the Non-U.S.
Plan, and all
         Liabilities of any other member of the Lucent Group; and

                  (vii) all Liabilities  reflected as liabilities
or obligations
         of Lucent in the Lucent Balance Sheet, subject to any
discharge of such
         Liabilities subsequent to the date of the Lucent Balance Sheet.

Notwithstanding  the  foregoing,  the Lucent  Liabilities  shall not include the
Excluded  Liabilities referred to in Section 2.3(b) below. Subject to Articles V
and VI hereof,  the  Lucent  Liabilities  shall not  include  any Nassau  Metals
Liabilities.

                  (b) For the purposes of this Agreement,
"Excluded Liabilities"
shall mean:

                  (i) any and all Liabilities that are expressly
contemplated by
         this Agreement or any Ancillary  Agreement (or the
Schedules  hereto or
         thereto) as  Liabilities to be retained or assumed by
AT&T or any other
         member of the AT&T Group (including the NCR Group),  and
all agreements
         and obligations of any member of the AT&T Group under
this Agreement or
         any of the Ancillary Agreements;

                  (ii)  subject to the terms of Article VI, all
Exclusive  AT&T
         Services   Contingent   Liabilities   and  Exclusive
NCR   Contingent
         Liabilities   and  the  Shared  AT&T  Percentage  and
the  Shared  NCR
         Percentage of any Shared Contingent Liabilities; and

                  (iii)  except as set  forth in any  Ancillary
Agreement,  all
         Environmental Liabilities accrued as of the date hereof
solely relating
         to,  arising out of or resulting  from the  existence of
any  leasehold
         interest that is an Lucent Asset if the applicable
lessor, sublessor or
         sub-sublessor under the applicable lease, sublease or
sub-sublease is a
         member of the AT&T Services Group or the NCR Group.

                  2.4.  TERMINATION  OF  AGREEMENTS.  (a) Except as set forth in
Section 2.4(b),  in furtherance of the releases and other  provisions of Section
5.1 hereof,  Lucent and each member of the Lucent  Group,  on the one hand,  and
each of AT&T, NCR and the respective  members of the AT&T Services Group and the
NCR  Group,  on the  other  hand,  hereby  terminate,  any and  all  agreements,
arrangements,  commitments or understandings, whether or not in writing, between
or among Lucent and/or any member of the Lucent Group, on the one hand, and AT&T
or NCR  and/or any member of the AT&T  Services  Group or the NCR Group,  on the
other hand, effective as of the Closing Date;  provided,  however, to the extent
any such agreement,  arrangement,  commitment or  understanding  is inconsistent
with any Ancillary Agreement, such termination shall be effective as of the date
of  effectiveness  of the applicable  Ancillary  Agreement.  No such  terminated
agreement,  arrangement,  commitment or  understanding  (including any provision
thereof which purports


<PAGE>

to  survive  termination)  shall be of any  further  force or  effect  after the
Closing Date (or, to the extent  contemplated  by the proviso to the immediately
preceding  sentence,  after  the  effective  date  of the  applicable  Ancillary
Agreement).  Each party  shall,  at the  reasonable  request of any other party,
take, or cause to be taken, such other actions as may be necessary to effect the
foregoing.


                  (b) The provisions of Section 2.4(a) shall not apply to any of
the following agreements, arrangements, commitments or understandings (or to any
of the provisions thereof): (i) this Agreement and the Ancillary Agreements (and
each other agreement or instrument  expressly  contemplated by this Agreement or
any Ancillary  Agreement to be entered into by any of the parties  hereto or any
of the members of their respective Groups);  (ii) any agreements,  arrangements,
commitments or understandings listed or described on Schedule 2.4(b)(ii);  (iii)
any agreements, arrangements,  commitments or understandings to which any Person
other than the parties  hereto and their  respective  Affiliates  is a party (it
being  understood  that to the extent  that the rights  and  obligations  of the
parties and the members of their  respective  Groups under any such  agreements,
arrangements,  commitments or understandings  constitute Lucent Assets or Lucent
Liabilities,  they  shall  be  assigned  pursuant  to  Section  2.1);  (iv)  any
intercompany  accounts payable or accounts  receivable accrued as of the Closing
Date that are  reflected  in the books and records of the  parties or  otherwise
documented in writing in accordance  with past  practices;  (v) any  agreements,
arrangements, commitments or understandings to which AT&T Capital Corporation or
any other non-wholly  owned  Subsidiary of AT&T,  Lucent or NCR, as the case may
be, is a party (it being understood that directors' qualifying shares or similar
interests will be disregarded  for purposes of determining  whether a Subsidiary
is wholly owned);  (vi) any written Tax sharing or Tax allocation  agreements to
which  any  member of any  Group is a party;  and  (vii)  any other  agreements,
arrangements, commitments or understandings that this Agreement or any Ancillary
Agreement expressly contemplates will survive the Closing Date.


                  2.5. DOCUMENTS RELATING TO TRANSFER OF REAL PROPERTY INTERESTS
AND TANGIBLE  PROPERTY  LOCATED  THEREON.  (a) In furtherance of the assignment,
transfer  and   conveyance  of  Lucent  Assets  and  the  assumption  of  Lucent
Liabilities  set  forth  in  Section  2.1(a)  and (b),  simultaneously  with the
execution and delivery hereof or as promptly as practicable thereafter,  each of
AT&T,  Lucent  and NCR,  or their  applicable  Subsidiaries,  is  executing  and
delivering or will execute and deliver deeds, lease assignments and assumptions,
leases,  subleases  and  sub-subleases  substantially  in the forms  attached as
Schedule 2.5 (which in certain cases includes  different forms for real property
and leasehold interests located outside of the United States), with such changes
as may be necessary to conform to any laws,  regulations or usage  applicable in
the jurisdiction in which the relevant real property is located.
Set forth in,
or  referenced  by, such  Schedule  is,  among other  things,  a summary of each
property or interest  therein to be  conveyed,  assigned,  leased,  subleased or
sub-subleased,  the  applicable  entities  relevant to each  property  and their
capacities  with respect to each  property  (e.g.,  as  transferor,  transferee,
assignor,  assignee,  lessor,  lessee,  sublessor,  sublessee,  sub-sublessor or
sub-sublessee), and any terms applicable to each property that are not specified
in the forms of deed,  lease  assignment  and  assumption,  lease,  sublease  or
sub-sublease (e.g., rent and term).

                  (b) Except as otherwise  expressly  provided in this Agreement
or any Ancillary Agreement, all tenant improvements, fixtures, furniture, office
equipment,  servers,  private  branch  exchanges,  artwork  and  other  tangible
property (other than equipment subject to capital or operating equipment leases,
which will be transferred or retained based on whether the associated capital or
operating equipment lease is or is not an Lucent Contract)


<PAGE>

located  as of the date  hereof  on any real  property  that is  covered  by any
Ancillary  Agreement  referred to in Section  2.5(a),  including  the  Schedules
thereto,  shall, except to the extent expressly set forth on a Schedule referred
to in Section 2.5(a), be transferred or retained as follows:

                  (i) DEEDS AND ASSIGNMENTS. In the case of any
real property or
         leasehold  interests  covered by an  Ancillary
Agreement  set forth on
         Schedule 2.5 that is a deed or lease  assignment  and
assumption,  all
         such  tangible  property  will  be  transferred  to the
transferee  or
         assignee of the applicable real property or leasehold
interest;

                  (ii) SHARED FACILITIES WITHOUT THIRD PARTY
LEASES. In the case
         of any real  property or  leasehold  interests  covered
by an Ancillary
         Agreement set forth on Schedule 2.5 that is a lease,  all
such tangible
         property  will be retained by the lessor  under the
applicable  lease,
         except that any such tangible property (other than tenant
improvements,
         fixtures,  furniture and artwork) used  exclusively by
the lessee shall
         be transferred to, or retained by, the lessee.

                  (iii) SHARED DOMESTIC  FACILITIES WITH THIRD
PARTY LEASES.  In
         the case of any real  property or  leasehold  interests
located in the
         United States  covered by an Ancillary  Agreement set
forth on Schedule
         2.5 that is a sublease or sub-sublease, all such tangible
property will
         be retained by the sublessor or sub-sublessor,
respectively, under the
         applicable  sublease or  sub-sublease,  except  that any
such  tangible
         property  (other  than  tenant  improvements,  fixtures
and  artwork),
         including furniture used exclusively by the sublessee or
sub-sublessee,
         respectively,  shall be transferred  to, or retained by,
such sublessee
         or sub-sublessee.

                  (iv) SHARED NON-U.S.  FACILITIES  WITH THIRD
PARTY LEASES.  In
         the case of any real property or leasehold interests
located outside of
         the  United  States  covered  by an  Ancillary
Agreement  set forth on
         Schedule  2.5 that is a sublease  or  sub-sublease,  all
such  tangible
         property   will  be  retained  by  the   sublessor  or
sub-sublessor,
         respectively,  under the applicable  sublease or
sub-sublease,  except
         that  any such  tangible  property  (other  than  tenant
improvements,
         fixtures,  furniture and artwork) used  exclusively by
the sublessee or
         sub-sublessee,  respectively,  shall be transferred to,
or retained by,
         such sublessee or sub-sublessee.

In the case of this Section 2.5(b),  all  determinations  as to exclusive use by
any member of a Group shall be made without  regard to infrequent and immaterial
use by the members of any other Group,  if the transfer of such Asset to, or the
retention of such Asset by, such first Group would not interfere in any material
respect  with  either  the  business  or  operations  of any such  other  Group.
Notwithstanding  the foregoing  provisions of this Section  2.5(b),  any artwork
located as of the date  hereof in the  private  office of any senior  manager or
officer of any Group may, at the election of such senior manager or officer,  be
retained by, or transferred to, the Group by which such executive is employed as
of the Closing Date.

                  (c) In the case of any real  property  or  leasehold  interest
that is covered by Section  2.5(b)(i)  and any of Section  2.5(b)(ii),  (iii) or
(iv),  all such  tangible  property  shall  first be  allocated  pursuant to the
provisions  of Section  2.5(b)(i) and  thereafter  pursuant to whichever of such
other clauses is applicable.

                  2.6. DOCUMENTS RELATING TO OTHER TRANSFERS OF
ASSETS AND
ASSUMPTION OF LIABILITIES. In furtherance of the assignment,
transfer and
conveyance of Lucent Assets and the assumption of Lucent
Liabilities set forth
in Section 2.1(a) and (b), simultaneously


<PAGE>

with the execution and delivery hereof or as promptly as practicable thereafter,
(i) each of AT&T and NCR shall  execute  and  deliver,  and each shall cause its
respective  Subsidiaries  to execute  and  deliver,  such  bills of sale,  stock
powers, certificates of title, assignments of contracts and other instruments of
transfer,  conveyance and assignment as and to the extent  necessary to evidence
the  transfer,  conveyance  and  assignment  of all of  AT&T's,  NCR's and their
respective  Subsidiaries'  right, title and interest in and to the Lucent Assets
to Lucent and (ii) Lucent  shall  execute and  deliver,  to AT&T,  NCR and their
respective Subsidiaries such bills of sale, stock powers, certificates of title,
assumptions  of contracts  and other  instruments  of  assumption  as and to the
extent  necessary to evidence the valid and  effective  assumption of the Lucent
Liabilities by Lucent.

                  2.7. OTHER ANCILLARY AGREEMENTS. (a) Effective
as of the date
hereof, except as provided in Section 2.7(b) or Section 2.8, each
of AT&T,
Lucent and NCR will execute and deliver all Ancillary Agreements
to which it is
a party.


               (b) Effective as of March 29, 1996, the parties shall execute and
deliver each of the following Ancillary Agreements to which it is a party:

                  (i) the Patent Assignments and related
agreements regarding
         powers of attorney;

                  (ii) the Patent License Agreement;

                  (iii) the Patent Joint Ownership Agreement;

                  (iv) the Patent Defensive Protection Agreements;

                  (v) the Technology Assignment and Joint
Ownership Agreements;
         and

                  (vi) the Technology License Agreement.

                  (a) 2.8. THE NON-U.S. PLAN. (a) Each of AT&T,
Lucent and NCR
shall take, and shall cause each member of its respective Group to
take, such
action as reasonably necessary to consummate the transactions
contemplated by
the Non-U.S. Plan (whether prior to or after the Closing Date).
Notwithstanding
anything in this Agreement or in any Ancillary Agreement to the
contrary, no
party shall be entitled to receive or retain any Asset unless such
party shall
have paid any consideration contemplated to be paid in connection
therewith
pursuant to the Non-U.S. Plan.


                  (b) After the date hereof and on or prior to the Closing Date,
AT&T shall  transfer  all of its right,  title and interest in and to all of the
issued and outstanding  capital stock in each of ATTI and NCS Ventures,  Inc., a
Delaware corporation, to Lucent by means of a contribution of such capital stock
by AT&T to Lucent.  The parties hereto shall  execute,  or cause to be executed,
such transfer  instruments  as they mutually deem  appropriate to effectuate and
evidence such transfer.

                  2.9. AT&T VENTURES; LUCENT FOUNDATION.  (a) On or prior to the
Closing Date,  AT&T shall transfer to Lucent 35% of AT&T's interest as a limited
partner in AT&T  Ventures and Lucent shall assume all  Liabilities  of a limited
partner of AT&T Ventures  relating to such  interest.  AT&T and Lucent shall use
reasonable  best  efforts to  cooperate  so that Lucent will be admitted to AT&T
Ventures as a limited partner in respect of such interest.  Without  duplication
of any such Liability assumed in its capacity as a limited


<PAGE>

partner,  Lucent shall indemnify,  defend and hold harmless each AT&T Indemnitee
and each NCR Indemnitee  from and against 35% of any and all  Liabilities of the
AT&T Indemnitees or the NCR Indemnitees,  respectively, relating to, arising out
of or resulting from AT&T Ventures, including in respect of any capital calls or
commitments and in connection with the operation or management thereof.

                  (b) (i) Following the date hereof,  Lucent will  incorporate a
private foundation to be qualified under Section 501(c)(3) of the Code. The AT&T
Foundation  will  make an $18  million  grant to the new  foundation  formed  by
Lucent,  as soon as is reasonably  practicable  following such new  foundation's
request,  subject to the  satisfaction  by such new  foundation of the following
requirements:  the election or appointment of a governing  board of directors or
trustees,  the  adoption of by-laws,  the hiring of a  professional  staff,  the
formulation  of a mission  statement,  and  commencement  of the  development of
programs and priorities for funding grants. The determination as to whether such
requirements  have  been  satisfied  shall be made by the  trustees  of the AT&T
Foundation in their sole  discretion  and shall be binding on all parties.  Such
$18 million grant shall be payable, at the AT&T Foundation's  election,  in cash
or in appreciated property (or any combination thereof). All determinations with
respect to the fair market value of any appreciated property will be made by the
trustees of the AT&T Foundation in their sole discretion and shall be binding on
all parties.

                  (ii) The AT&T Foundation has approved a 1996 grant budget that
includes grants totalling $13 million relating to Lucent initiatives. The staffs
of the AT&T Foundation and the new foundation to be formed by Lucent pursuant to
subparagraph  (i) above will work together to administer the grants  relating to
these  Lucent  initiatives.  In the event  such $13  million  has not been fully
disbursed prior to the  Distribution  Date, the AT&T Foundation will transfer to
the new  foundation  formed by Lucent an amount equal to the portion of such $13
million  that has not  been  disbursed,  and such  foundation  will  assume  the
obligation to make grants equal to such remaining  amount.  The AT&T  Foundation
will also  allocate  up to $1  million  of its 1996  administrative  budget  for
administrative costs related to Lucent programs.

                  2.10.  DISCLAIMER OF REPRESENTATIONS AND WARRANTIES.  (a) Each
of AT&T (on behalf of itself and each member of the AT&T Services Group), Lucent
(on behalf of itself and each member of the Lucent  Group) and NCR (on behalf of
itself and each member of the NCR Group)  understands and agrees that, except as
expressly  set forth herein  (including  in Section  7.2(g)) or in any Ancillary
Agreement,  no party to this  Agreement,  any  Ancillary  Agreement or any other
agreement or document contemplated by this Agreement, any Ancillary Agreement or
otherwise, is representing or warranting in any way as to the Assets, businesses
or Liabilities  transferred or assumed as contemplated  hereby or thereby, as to
any consents or approvals required in connection  therewith,  as to the value or
freedom from any Security  Interests  of, or any other  matter  concerning,  any
Assets of such party, or as to the absence of any defenses or right of setoff or
freedom from  counterclaim  with respect to any claim or other Asset,  including
any accounts  receivable,  of any party,  or as to the legal  sufficiency of any
assignment,  document or instrument  delivered  hereunder to convey title to any
Asset or thing of value  upon the  execution,  delivery  and  filing  hereof  or
thereof.  Except  as may  expressly  be set  forth  herein  or in any  Ancillary
Agreement, all such Assets are being transferred on an "as is," "where is" basis
(and, in the case of any real property,  by means of a quitclaim or similar form
deed or conveyance) and the respective  transferees  shall bear the economic and
legal risks that any conveyance  shall prove to be  insufficient  to vest in the
transferee good and marketable title, free and clear of any Security Interest.


<PAGE>

                  2.11. FINANCING  ARRANGEMENTS.  (a) Prior to the Closing Date,
AT&T and Lucent shall enter into the Financing  Facility.  AT&T and Lucent agree
to take all such reasonable  action as may be necessary to permit AT&T to borrow
such amount as it shall  determine  under the  Financing  Facility  prior to the
Closing Date and to assure the assignment to and the assumption by Lucent of all
obligations  thereunder  and the full release and  discharge of each of AT&T and
any other member of the AT&T Group of all of its  obligations  thereunder  as of
the Closing Date in accordance  with the terms of the Financing  Facility.  AT&T
and  Lucent  shall   participate  in  the   preparation  of  all  materials  and
presentations  as may be reasonably  necessary to secure funding pursuant to the
Financing Facility,  including rating agency  presentations  necessary to obtain
the  requisite  ratings  needed  to secure  the  financing  under the  Financing
Facility and such assignment,  assumption, release and discharge. As of the time
of such assignment,  assumption, release and discharge, AT&T shall pay all third
party costs and  expenses  incurred  by any member of the AT&T Group  associated
with the Financing Facility.

                  (b)  Simultaneously   with  or  following  the  execution  and
delivery of this  Agreement,  Lucent  intends to enter into the Working  Capital
Facility.  Lucent agrees to cause all obligations of AT&T or any other member of
the AT&T Group, if any, under the Working  Capital  Facility to be terminated at
the Closing  Date.  Lucent  shall pay all expenses  associated  with the Working
Capital Facility.

                  2.12. GOVERNMENTAL APPROVALS AND CONSENTS. (a)
To the extent
that the Separation requires any Governmental Approvals or
Consents, the parties
will use their reasonable best efforts to obtain any such
Governmental Approvals
and Consents.

                  (b)  If and  to  the  extent  that  the  valid,  complete  and
perfected  transfer  or  assignment  (or  novation  of  any  federal  government
contract) to the Lucent Group of any Lucent  Assets (or from the Lucent Group of
any  Non-Lucent  Assets) would be a violation of applicable  laws or require any
Consent or Governmental  Approval in connection with the Separation,  the IPO or
the Distribution,  then, unless AT&T shall otherwise determine,  the transfer or
assignment  to or from the  Lucent  Group,  as the case may be,  of such  Lucent
Assets  or  Non-Lucent  Assets,  respectively,  shall  be  automatically  deemed
deferred and any such  purported  transfer or assignment  shall be null and void
until such time as all legal  impediments  are removed  and/or such  Consents or
Governmental Approvals have been obtained.  Notwithstanding the foregoing,  such
Asset shall be deemed an Lucent  Asset for purposes of  determining  whether any
Liability is an Lucent Liability.

                  (c) If the transfer or assignment of any Assets intended to be
transferred or assigned hereunder,  including pursuant to the Non-U.S.  Plan, is
not  consummated  prior to or at the  Closing  Date,  whether as a result of the
provisions of Section 2.12(b) or for any other reason, then the Person retaining
such Asset shall thereafter hold such Asset for the use and benefit,  insofar as
reasonably  possible,  of the Person  entitled  thereto  (at the  expense of the
Person entitled  thereto).  In addition,  the Person  retaining such Asset shall
take such other  actions as may be  reasonably  requested  by the Person to whom
such  Asset is to be  transferred  in order to place  such  Person,  insofar  as
reasonably possible,  in the same position as if such Asset had been transferred
as contemplated hereby and so that all the benefits and burdens relating to such
Lucent  Assets  (or such  Non-Lucent  Assets,  as the  case  may be),  including
possession,  use, risk of loss,  potential for gain,  and dominion,  control and
command  over such  Assets,  are to inure from and after the Closing Date to the
Lucent Group (or the AT&T Group, as the case may be).


<PAGE>

                  (d) If and when the Consents  and/or  Governmental  Approvals,
the absence of which  caused the  deferral of transfer of any Asset  pursuant to
Section  2.12(b),  are obtained,  the transfer of the applicable  Asset shall be
effected in accordance  with the terms of this  Agreement  and/or the applicable
Ancillary Agreement.

                  (e) The Person  retaining  an Asset due to the deferral of the
transfer of such Asset shall not be obligated, in connection with the foregoing,
to expend  any money  unless  the  necessary  funds are  advanced  by the Person
entitled to the Asset, other than reasonable out-of-pocket expenses,  attorneys'
fees and recording or similar fees, all of which shall be promptly reimbursed by
the Person entitled to such Asset.

                  2.13.  NOVATION  OF ASSUMED  LUCENT  LIABILITIES.  (a) Each of
AT&T,  Lucent  and NCR,  at the  request of any of the  others,  shall use their
reasonable  best  efforts to obtain,  or to cause to be  obtained,  any consent,
substitution,  approval or amendment  required to novate (including with respect
to any federal government  contract) or assign all obligations under agreements,
leases,  licenses and other obligations or Liabilities  (including Lucent OFL's)
of any nature  whatsoever  that constitute  Lucent  Liabilities or Nassau Metals
Liabilities, or to obtain in writing the unconditional release of all parties to
such  arrangements  other than any member of the Lucent  Group,  so that, in any
such  case,  Lucent and its  Subsidiaries  will be solely  responsible  for such
Liabilities;  provided,  however,  that  none of AT&T,  Lucent  or NCR  shall be
obligated  to pay any  consideration  therefor to any third party from whom such
consents, approvals, substitutions and amendments are requested.

                  (b) If AT&T, Lucent or NCR is unable to obtain, or to cause to
be obtained,  any such required  consent,  approval,  release,  substitution  or
amendment, the applicable member of the AT&T Services Group or the NCR Group, as
the case may be, shall continue to be bound by such agreements, leases, licenses
and other  obligations  and,  unless not  permitted by law or the terms  thereof
(except to the extent  expressly  set forth in Section 7.3 in the case of Lucent
OFL's),  Lucent shall,  as agent or  subcontractor  for AT&T,  NCR or such other
Person, as the case may be, pay, perform and discharge fully all the obligations
or other  Liabilities  of AT&T,  NCR or such other  Person,  as the case may be,
thereunder  from and after the date  hereof.  Lucent shall  indemnify  each AT&T
Indemnitee and each NCR Indemnitee,  and hold each of them harmless  against any
Liabilities  arising in connection  therewith.  Except as expressly set forth in
Section 7.3 in the case of Lucent  OFL's,  each of AT&T and NCR, as the case may
be, shall, without further consideration,  pay and remit, or cause to be paid or
remitted, to Lucent promptly all money, rights and other consideration  received
by it or any  member of its  respective  Group in  respect  of such  performance
(unless  any such  consideration  is an  Excluded  Asset).  If and when any such
consent, approval, release,  substitution or amendment shall be obtained or such
agreement,  lease, license or other rights or obligations shall otherwise become
assignable  or able to be  novated,  each of AT&T and  NCR,  as the case may be,
shall thereafter  assign, or cause to be assigned,  all its rights,  obligations
and other  Liabilities  thereunder or any rights or obligations of any member of
its respective  Group to Lucent  without  payment of further  consideration  and
Lucent  shall,  without the payment of any  further  consideration,  assume such
rights and obligations.

                  2.14.  NOVATION  OF  ASSUMED  LIABILITIES  OTHER  THAN  LUCENT
LIABILITIES.  (a) Each of AT&T,  Lucent  and NCR,  at the  request of any of the
others,  shall use their  reasonable  best efforts to obtain,  or to cause to be
obtained, any consent, substitution, approval or amendment required to novate or
assign all obligations under agreements,  leases, licenses and other obligations
or  Liabilities  of  any  nature   whatsoever  that  do  not  constitute  Lucent
Liabilities  or  Nassau  Metals  Liabilities,   or  to  obtain  in  writing  the
unconditional release of


<PAGE>

all parties to such  arrangements  other than any member of the AT&T  Group,  so
that, in any such case, the members of the AT&T Group will be solely responsible
for such Liabilities;  provided, however, that none of AT&T, Lucent or NCR shall
be obligated to pay any consideration therefor to any third party from whom such
consents, approvals, substitutions and amendments are requested.

                  (b) If AT&T, Lucent or NCR is unable to obtain, or to cause to
be obtained,  any such required  consent,  approval,  release,  substitution  or
amendment,  the applicable member of the Lucent Group shall continue to be bound
by such  agreements,  leases,  licenses and other  obligations  and,  unless not
permitted  by law or the terms  thereof,  AT&T shall  cause a member of the AT&T
Group,  as agent or  subcontractor  for such member of the Lucent Group, to pay,
perform and discharge  fully all the  obligations  or other  Liabilities of such
member of the Lucent Group thereunder from and after the date hereof. AT&T shall
indemnify  each Lucent  Indemnitee  and hold each of them  harmless  against any
Liabilities arising in connection  therewith.  Lucent shall cause each member of
the Lucent Group without further consideration, to pay and remit, or cause to be
paid or remitted,  to AT&T or to another  member of the AT&T Group  specified by
AT&T promptly all money,  rights and other  consideration  received by it or any
member of the Lucent Group in respect of such performance.  If and when any such
consent, approval, release,  substitution or amendment shall be obtained or such
agreement,  lease, license or other rights or obligations shall otherwise become
assignable or able to be novated,  Lucent shall promptly assign,  or cause to be
assigned,  all its rights,  obligations and other Liabilities  thereunder or any
rights or  obligations  of any member of the Lucent  Group to AT&T or to another
member  of  the  AT&T  Group  specified  by  AT&T  without  payment  of  further
consideration and AT&T, without the payment of any further  consideration shall,
or shall  cause such other  member of the AT&T Group to,  assume such rights and
obligations.

                  2.15.  THIRD PARTY PATENT  LICENSE  AGREEMENTS.
(a) Except as
otherwise set forth in this Section 2.15,  effective as of the
date of execution
of the Patent Assignments and other agreements set forth in
Section 2.7(b), AT&T
hereby:  (i)  grants to each of Lucent  and NCR the right to share with AT&T the
license rights granted by any third party to AT&T pursuant to any patent license
agreement  between AT&T and such third party  existing as of the date hereof and
(ii) grants to Lucent the right to receive any net royalty  payments  from third
parties  pursuant  to the patent  license  agreements  referred to in clause (i)
above.  Except as otherwise set forth in this Section 2.15, AT&T will retain all
rights in and to the patent license agreements referred to in this Section 2.15.

                  (b) The  grants  set forth in the first  sentence  of  Section
2.15(a)  shall  not  apply to (i) the  patent  license  agreements  set forth in
Schedule  2.15(b) or (ii) any other  patent  license  agreement  with respect to
which there otherwise exists, on or prior to the date of execution of the Patent
Assignments,  written  provision  for the  allocation or sharing of rights under
such  patent  license  agreement  between or among any two or all three of AT&T,
Lucent and NCR.

                  (c) Except as set forth in Section 2.15(d),  in the event that
any grant of rights set forth in Section  2.15(a)  would  violate or is found to
violate the terms of, or result in the loss of rights or  imposition  of penalty
under, any patent license agreement  covered thereby,  or would not be effective
subsequent to the  Distribution  Date, such grant of rights with respect to such
patent license agreement shall be deemed null and void and, in lieu thereof, (i)
effective as of the  Distribution  Date,  AT&T hereby  transfers any such patent
license  agreement  to Lucent  without  retaining  any rights  therein (and AT&T
waives any


<PAGE>

such right it could  otherwise  retain) and (ii) Lucent shall use all reasonable
efforts to arrange for the grant by the  applicable  third  party of  comparable
rights  (other than any right to receive  royalty  payments) to each of AT&T and
NCR,  provided  that none of Lucent,  AT&T or NCR shall be  obligated to pay any
consideration therefor.

                  (d) In the  event  that any  transfer  set  forth  in  Section
2.15(c) would violate or is found to violate the terms of, or result in the loss
of rights or imposition of penalty under, any patent license  agreement  covered
thereby,  or would not be effective  subsequent to the  Distribution  Date, such
transfer  shall be deemed  null and void and, in lieu  thereof,  (i) AT&T hereby
retains all rights under any such patent license  agreement,  (ii) AT&T will pay
over to Lucent any royalty payments it may receive from any third party pursuant
to any such patent  license  agreement  and (iii) AT&T shall use all  reasonable
efforts to arrange for the grant by the  applicable  third  party of  comparable
rights  (other  than any right to royalty  payments)  to each of Lucent and NCR,
provided  that  none  of  Lucent,  AT&T or NCR  shall  be  obligated  to pay any
consideration therefor.

                  (e) In the event that license  rights under any patent license
agreement  intended to be granted or  transferred  to Lucent  under this Section
2.15 are not  effectively  granted or  transferred  (including in the event such
grant or  transfer  is not  effective  after the  Distribution  Date  and/or the
parties  are unable to arrange  for the grant by the  applicable  third party of
comparable  license rights to Lucent),  then, at the written  request of Lucent:
(i) AT&T will  exercise any  have-made  rights it may have under the  applicable
third-party  license  agreement  to have Lucent  make,  and will  purchase  from
Lucent,  such  products  or other  materials  as  Lucent  may  direct  using the
applicable  third-party  patents as to which AT&T has such have-made  rights (at
the price and on the terms to be paid and  agreed to by the Person or Persons to
whom AT&T may be directed to sell such products or other  materials  pursuant to
the following clause (ii)); and (ii) following any such purchase, AT&T will sell
such products or other  materials to such Person or Persons,  on such terms,  as
may be  directed  by Lucent  (except  that AT&T will not be required to make any
representations,  warranties  or  commitments  in respect  thereof other than to
provide  to  such  Person  or  Persons  the   representations,   warranties  and
commitments of Lucent in respect thereof,  for which only Lucent,  and not AT&T,
will be  responsible).  In connection with the foregoing,  Lucent will cause the
Person  or  Persons  to  which  such  products  or other  materials  are sold to
acknowledge in writing that only Lucent and the members of the Lucent Group, and
not AT&T or any member of the AT&T Group,  will be responsible to such Person or
Persons in respect of such products or other materials.  Nothing in this Section
(e) shall be  construed  to  require  AT&T or any  member  of the AT&T  Group to
violate any applicable laws, rules or regulations of any Governmental Authority.

                  (f) In the  event  AT&T  makes  any  purchases  and  sales  as
directed by Lucent under the  foregoing  paragraph  (e),  then:  (i) Lucent will
promptly reimburse AT&T for all costs and expenses (including allocated costs of
in-house  counsel and other personnel) that AT&T or any member of the AT&T Group
may incur in connection  with such actions,  plus a fee of two percent (2%); and
(ii) Lucent will  indemnify and hold harmless AT&T and each AT&T  Indemnitee for
all Liabilities that may arise as a result of such actions (including any claims
by the purchaser of such products or materials, any loss incurred on the sale of
such products or materials by AT&T to the Person or Persons  directed by Lucent,
or arising  out of the  failure  of such  Person or  Persons  to  purchase  such
products or materials on the terms directed by Lucent,  and any claims  alleging
any infringement of any patent,  copyright,  trademark or  misappropriation of a
trade secret,  any product liability claims, and any other claims, in connection
with such products or materials).


<PAGE>

                  (g) Each of AT&T,  Lucent and NCR agrees that it will  fulfill
any  obligations  it may have to any third party  pursuant to the patent license
agreements to which the provisions of this Section 2.15 apply.

                  2.16. CERTAIN TERMINATION RIGHTS. (a)
Notwithstanding anything
in this Agreement or any Ancillary Agreement to the contrary, the
rights granted
to Lucent and the members of the Lucent Group shall be subject to
the provisions
of this Section 2.16.

                  (b) Except as  otherwise  expressly  provided in this  Section
2.16,  in the event  that,  at any time prior to the fifth  anniversary  of this
Agreement,  Lucent or any  member  of the  Lucent  Group  offers,  furnishes  or
provides,  either directly or indirectly  (whether through any reseller or joint
venture or otherwise),  any  Telecommunications  Services of the type offered by
the AT&T Services Business as of the Closing Date, then:

                  (i)  pursuant  to  Section  2.5 and  Article  IX
of the  Brand
         License Agreement,  AT&T may, in its sole discretion,
terminate all or
         any  portion  of the rights  granted  to Lucent and the
members of the
         Lucent Group pursuant to the Brand License Agreement;

                  (ii) AT&T may, in its sole  discretion,
terminate  all or any
         remaining  portion  of the  purchase  commitments  made
by AT&T and the
         members of the AT&T Group in the AT&T General Purchase
Agreement;

                  (iii) AT&T may, in its sole  discretion,
exercise  either the
         Full  Grant   rights  or  the  Partial   Grant   rights
described  in
         subparagraphs  8.4(b) and  8.4(c),  respectively,  of
the  Supplemental
         General Purchase Agreement,  dated as of the date
hereof,  between AT&T
         and Lucent;

                  (iv) AT&T may, in its sole  discretion,
terminate  all or any
         portion of the rights to patents and  technology  of AT&T
or any member
         of the AT&T Group granted to Lucent and the members of
the Lucent Group
         pursuant to the Patent  License  Agreement and the
Technology  License
         Agreement; and

                  (v) at  AT&T's  direction,  which  may be
given  in its  sole
         discretion, Lucent and the members of the Lucent Group
will reconvey to
         AT&T or any  member  of the AT&T  Group all of their
right,  title and
         interest in any and all patents and  technology  in which
Lucent or any
         member of the Lucent Group was granted an undivided
one-half  interest
         pursuant to the Patent  Assignments  or the  Technology
Assignment and
         Joint Ownership Agreement.

                  (c) Lucent and the  members of the Lucent  Group  shall not be
deemed  to offer,  furnish  or  provide,  either  directly  or  indirectly,  any
Telecommunications  Services  (and  Section  2.16(b)  will not apply)  solely by
virtue of either of the following:

                  (i) a passive  investment  by Lucent or any of
the  members of
         the  Lucent  Group  of,  in the  aggregate,  (A)  less
than  5% of the
         ownership  interest in any Person that  offers,
furnishes  or provides
         Telecommunications  Services in the United  States or (B)
not more than
         15% of the ownership  interest in any Person that
offers,  furnishes or
         provides  Telecommunications  Services  solely  outside
of the  United
         States (it being understood that Telecommunications
Services operating
         outside the United States will be considered  solely
outside the United
         States notwithstanding the ability


<PAGE>

         of such  Telecommunications  Services to receive
transmissions from or
         send   transmissions   to  the   United   States,   so
long  as  such
         Telecommunications  Services  may  not be  used  to
send  and  receive
         transmissions solely within the United States); or

                  (ii) an  investment  by  Lucent or any of the
members  of the
         Lucent Group of, in the  aggregate,  not more than 40% of
the ownership
         interest in any Person outside the United States formed
for the purpose
         of  building  a  network  or  similar   system  for  the
provision  of
         Telecommunications  Services solely outside of the United
States, which
         network  or  system is built by Lucent  or any  members
of the  Lucent
         Group;  so long as Lucent and the  members of the Lucent
Group  divest
         such interest to, in the aggregate,  not more than 15% of
the ownership
         interest  in  such  Person  within  one  year  of
commencement  of the
         provision  of any  Telecommunications  Services  over
such  network  or
         system,  or such  longer  period as may be  necessary
to  permit  such
         reduction in interest and to which AT&T shall  consent,
which  consent
         will not be unreasonably withheld; or

                  (iii) the offer,  furnishing  or  provision  by
Lucent and the
         members  of  the  Lucent  Group,  either  directly  or
indirectly,  of
         Telecommunications  Services from which the  aggregate
revenues in any
         fiscal  year do not exceed one  percent of the
aggregate  revenues  of
         Lucent  and the  members  of the  Lucent  Group for such
fiscal  year,
         provided  that, in determining  whether such one percent
threshold has
         been met, any resale of Telecommunications Services
provided by AT&T or
         any  member of the AT&T  Group to Lucent  or any  member
of the  Lucent
         Group  pursuant to the VTNS  Agreement or any tariff or
contract  shall
         not be considered as Telecommunications  Services
offered, furnished or
         provided by Lucent and the members of the Lucent Group.

                                   ARTICLE III
                       THE IPO AND ACTIONS PENDING THE IPO

                  3.1. TRANSACTIONS PRIOR TO THE IPO. (a) Subject
to the
conditions specified in Section 3.3, AT&T and Lucent shall use
their reasonable
best efforts to consummate the IPO. Such actions shall include,
but not
necessarily be limited to, those specified in this Section 3.1.

                  (b) Lucent shall file the IPO Registration Statement, and such
amendments  or  supplements  thereto,  as may be necessary in order to cause the
same to become and remain effective as required by law or by the
Underwriters,
including,  but not limited to, filing such  amendments to the IPO  Registration
Statement as may be required by the  Underwriting  Agreement,  the Commission or
federal,  state or foreign securities laws. AT&T and Lucent shall also cooperate
in  preparing,  filing with the  Commission  and  causing to become  effective a
registration  statement  registering  the Lucent Common Stock under the Exchange
Act, and any registration statements or amendments thereof which are required to
reflect the  establishment  of, or amendments to, any employee benefit and other
plans necessary or appropriate in connection  with the IPO, the Separation,  the
Distribution  or the other  transactions  contemplated by this Agreement and the
Ancillary Agreements.

                  (c) Lucent  shall enter into the  Underwriting  Agreement,  in
form and substance reasonably satisfactory to Lucent and shall comply with its
obligations thereunder.


<PAGE>

                  (d) AT&T and  Lucent  shall  consult  with each  other and the
Underwriters  regarding  the timing,  pricing and other  material  matters  with
respect to the IPO.

                  (e) Lucent shall use its  reasonable  best efforts to take all
such action as may be necessary or appropriate  under state  securities and blue
sky laws of the  United  States  (and any  comparable  laws  under  any  foreign
jurisdictions) in connection with the IPO.

                  (f) Lucent shall prepare, file and use reasonable best efforts
to seek to make effective, an application for listing of the Lucent Common Stock
issued in the IPO on the NYSE, subject to official notice of
issuance.

                  (g) Lucent shall  participate in the  preparation of materials
and presentations as the Underwriters shall deem necessary or desirable.

                  (h) Lucent shall pay all third party costs,  fees and expenses
relating  to the  IPO,  all of the  reimbursable  expenses  of the  Underwriters
pursuant to the Underwriting Agreement, all of the costs of producing, printing,
mailing and otherwise distributing the Prospectus,  as well as the Underwriters'
discount as provided in the Underwriting Agreement.

                  3.2. PROCEEDS OF THE IPO. The IPO will be a
primary offering
of Lucent Common Stock and the net proceeds of the IPO will be
retained by
Lucent.

                  3.3. CONDITIONS  PRECEDENT TO CONSUMMATION OF THE IPO. As soon
as practicable  after the date of this  Agreement,  the parties hereto shall use
their  reasonable  best  efforts  to satisfy  the  following  conditions  to the
consummation  of the IPO. The  obligations  of the parties to consummate the IPO
shall be  conditioned on the  satisfaction,  or waiver by AT&T, of the following
conditions:

                  (a) The IPO  Registration  Statement shall have
been filed and
         declared effective by the Commission,  and there shall be
no stop-order
         in effect with respect thereto.

                  (b) The  Financing  Facility  shall  have  been
executed  and
         delivered,  pursuant  to which AT&T shall  have
borrowed  an amount of
         funds  determined  by AT&T,  and AT&T  shall be
satisfied  in its sole
         discretion  that  as of the  Closing  Date  it  will
have  no  further
         liability or  obligation  whatsoever  under either the
Working  Capital
         Facility or the Financing Facility.

                  (c) The actions and  filings  with regard to
state  securities
         and blue sky laws of the United States (and any
comparable  laws under
         any  foreign  jurisdictions)  described  in Section 3.1
shall have been
         taken and, where applicable, have become effective or
been accepted.

                  (d) The Lucent Common Stock to be issued in the
IPO shall have
         been accepted for listing on the NYSE, on official notice
of issuance.

                  (e) Lucent shall have entered into the
Underwriting  Agreement
         and all conditions to the  obligations  of Lucent and
the  Underwriters
         shall have been satisfied or waived.


<PAGE>

                  (f) AT&T shall be  satisfied  in its sole
discretion  that it
         will  own  at  least  80.1%  of the  outstanding  Lucent
Common  Stock
         following the IPO on a fully diluted basis,  after giving
effect to the
         issuance of any shares of restricted stock or employee
stock options to
         any  employees  of  Lucent,  and all other  conditions
to  permit  the
         Distribution to qualify as a tax-free  distribution to
AT&T, Lucent and
         AT&T's  shareholders  shall, to the extent applicable as
of the time of
         the IPO, be satisfied and there shall be no event or
condition  that is
         likely to cause any of such  conditions  not to be
satisfied as of the
         time of the Distribution or thereafter.

                  (g) No  order,  injunction  or  decree  issued
by any court or
         agency  of  competent   jurisdiction   or  other  legal
restraint  or
         prohibition preventing the consummation of the Separation
or the IPO or
         any of the other  transactions  contemplated  by this
Agreement or any
         Ancillary Agreement shall be in effect.

                  (h) Such other actions as the parties  hereto
may,  based upon
         the advice of  counsel,  reasonably  request  to be
taken  prior to the
         Separation and the IPO in order to assure the successful
completion of
         the Separation and the IPO and the other  transactions
contemplated by
         this Agreement shall have been taken.

                  (i) This Agreement shall not have been
terminated.


                  (j) A pricing  committee of AT&T  officers
designated  by the
         Board of Directors of AT&T shall have  determined that
the terms of the
         IPO are acceptable to AT&T.


                                   ARTICLE IV
                                THE DISTRIBUTION

                  4.1. THE  DISTRIBUTION.  (a) Subject to Section 4.3 hereof, on
or prior to the  Distribution  Date,  AT&T  will  deliver  to the  Agent for the
benefit of holders of record of AT&T Common  Stock on the Record  Date, a single
stock  certificate,   endorsed  by  AT&T  in  blank,  representing  all  of  the
outstanding  shares of Lucent  Common  Stock then owned by AT&T or any member of
the AT&T Group, and shall cause the transfer agent for the shares of AT&T Common
Stock  to  instruct  the  Agent  to  distribute  on the  Distribution  Date  the
appropriate  number of such shares of Lucent Common Stock to each such holder or
designated transferee or transferees of such holder.

                  (b) Subject to Section  4.4,  each holder of AT&T Common Stock
on the Record Date (or such holder's designated  transferee or transferees) will
be entitled to receive in the  Distribution  a number of shares of Lucent Common
Stock equal to the number of shares of AT&T Common  Stock held by such holder on
the Record Date multiplied by a fraction the numerator of which is the number of
shares of Lucent Common Stock  beneficially owned by AT&T or any other member of
the AT&T Group on the Record Date and the  denominator of which is the number of
shares of AT&T Common Stock outstanding on the Record Date.

                  (c) Lucent and AT&T,  as the case may be, will  provide to the
Agent all share  certificates and any information  required in order to complete
the Distribution on the basis specified above.


<PAGE>

                  4.2.  ACTIONS PRIOR TO THE  DISTRIBUTION.  (a) AT&T and Lucent
shall prepare and mail, prior to the  Distribution  Date, to the holders of AT&T
Common Stock, such information  concerning Lucent, its business,  operations and
management,  the  Distribution  and such other matters as AT&T shall  reasonably
determine  and as may be required  by law.  AT&T and Lucent  will  prepare,  and
Lucent  will,  to the  extent  required  under  applicable  law,  file  with the
Commission any such documentation and any requisite no action letters which AT&T
determines  are necessary or desirable to effectuate the  Distribution  and AT&T
and Lucent shall each use its  reasonable  best efforts to obtain all  necessary
approvals from the Commission with respect thereto as soon as practicable.

                  (b) AT&T and  Lucent  shall  take  all such  action  as may be
necessary or  appropriate  under the  securities  or blue sky laws of the United
States (and any comparable  laws under any foreign  jurisdiction)  in connection
with the Distribution.

                  (c) AT&T and Lucent shall take all reasonable  steps necessary
and  appropriate  to cause the  conditions  set forth in Section 4.3 (subject to
Sections  4.3(d))  to be  satisfied  and  to  effect  the  Distribution  on  the
Distribution Date.

                  (d)  Lucent  shall  prepare  and  file,   and  shall  use  its
reasonable best efforts to have approved,  an application for the listing of the
Lucent Common Stock to be distributed in the  Distribution on the NYSE,  subject
to official notice of distribution.

                  4.3.  CONDITIONS  TO  DISTRIBUTION.  The AT&T Board  currently
intends  to effect  the  Distribution  by  December  31,  1996.  Subject  to any
restrictions contained in the Underwriting Agreement,  the AT&T Board shall have
the sole discretion to determine the date of consummation of the Distribution at
any time after the Closing Date and on or prior to December 31, 1996. AT&T shall
be obligated to  consummate  the  Distribution  no later than December 31, 1996,
subject to the satisfaction, or waiver by the AT&T Board in its sole discretion,
of the  conditions set forth below.  In the event that any such condition  shall
not have been  satisfied or waived on or before  December  31, 1996,  AT&T shall
consummate  the   Distribution   as  promptly  as   practicable   following  the
satisfaction or waiver of all such conditions.

                  (a) a private letter ruling from the Internal
Revenue Service
         shall have been obtained,  and shall continue in effect,
to the effect
         that, among other things,  the Distribution  will qualify
as a tax-free
         distribution  for federal  income tax purposes under
Section 355 of the
         Code and the transfer to Lucent of the Lucent Assets and
the assumption
         by Lucent of the Lucent  Liabilities in connection  with
the Separation
         will not result in the recognition of any gain or loss to
AT&T,  Lucent
         or AT&T's or Lucent's shareholders for federal income tax
purposes, and
         such ruling shall be in form and substance  satisfactory
to AT&T in its
         sole discretion;

                  (b) any material Governmental Approvals and
Consents necessary
         to consummate the Distribution  shall have been obtained
and be in full
         force and effect;

                  (c) no  order,  injunction  or  decree  issued
by any court or
         agency  of  competent   jurisdiction   or  other  legal
restraint  or
         prohibition preventing the consummation of the
Distribution shall be in
         effect  and no other  event  outside  the  control  of
AT&T  shall have
         occurred  or failed to occur  that  prevents  the
consummation  of the
         Distribution; and


<PAGE>

                  (d) no  other  events  or  developments  shall
have  occurred
         subsequent  to the Closing  Date that,  in the judgment
of the Board of
         Directors of AT&T, would result in the  Distribution
having a material
         adverse effect on AT&T or on the shareholders of AT&T.

The  foregoing  conditions  are for the sole  benefit of AT&T and shall not give
rise to or create any duty on the part of AT&T or the AT&T Board of Directors to
waive or not waive any such condition.


                  4.4.  FRACTIONAL  SHARES.  As soon as  practicable  after  the
Distribution  Date, AT&T shall direct the Agent to determine the number of whole
shares and fractional  shares of Lucent Common Stock allocable to each holder of
record or  beneficial  owner of AT&T  Common  Stock as of the  Record  Date,  to
aggregate all such fractional  shares and sell the whole shares obtained thereby
at the  direction  of AT&T  either  to  AT&T,  in open  market  transactions  or
otherwise,  in each case at then prevailing  trading prices,  and to cause to be
distributed  to each such  holder  or for the  benefit  of each such  beneficial
owner, in lieu of any fractional  share,  such holder's or owner's ratable share
of the proceeds of such sale, after making appropriate  deductions of the amount
required to be withheld for federal  income tax purposes and after  deducting an
amount equal to all brokerage charges, commissions and transfer taxes attributed
to such sale.  AT&T and the Agent  shall use their  reasonable  best  efforts to
aggregate  the shares of AT&T  Common  Stock that may be held by any  beneficial
owner thereof through more than one account in determining the fractional  share
allocable to such beneficial owner.

                  4.5. THE LUCENT BOARD OF DIRECTORS. AT&T and Lucent shall each
take  all  actions  which  may be  required  to elect or  otherwise  appoint  as
directors  of  Lucent,  on or  prior to the  Distribution  Date,  persons  to be
designated  by a  nominating  committee of Lucent's  Board of  Directors  (which
nominating  committee  shall be  comprised of  individuals  who are at such time
neither  officers nor directors of AT&T) as additional or substitute  members of
the Board of Directors of Lucent on the Distribution Date.

                                    ARTICLE V

                        MUTUAL RELEASES; INDEMNIFICATION


                  5.1. RELEASE OF PRE-CLOSING  CLAIMS. (a) Except as provided in
Section 5.1(c), effective as of the Closing Date, Lucent does hereby, for itself
and each other member of the Lucent Group,  their respective  Affiliates  (other
than any member of the AT&T Group),  successors and assigns, and all Persons who
at any  time  prior to the  Closing  Date  have  been  shareholders,  directors,
officers,  agents or  employees of any member of the Lucent Group (in each case,
in their respective  capacities as such), remise,  release and forever discharge
each of AT&T and NCR, the respective  members of the AT&T Services Group and the
NCR Group,  their  respective  Affiliates  (other  than any member of the Lucent
Group),  successors  and  assigns,  and all Persons who at any time prior to the
Closing Date have been shareholders, directors, officers, agents or employees of
any member of the AT&T  Services  Group or the NCR Group (in each case, in their
respective   capacities  as  such),  and  their  respective  heirs,   executors,
administrators, successors and assigns, from any and all Liabilities whatsoever,
whether  at law or in  equity  (including  any right of  contribution),  whether
arising  under any contract or  agreement,  by  operation  of law or  otherwise,
existing  or arising  from any acts or events  occurring  or failing to occur or
alleged to


<PAGE>

have occurred or to have failed to occur or any  conditions  existing or alleged
to have existed on or before the Closing Date,  including in connection with the
transactions  and all other  activities to implement any of the Separation,  the
IPO and the Distribution.

                  (b) Except as provided in Section 5.1(c),  effective as of the
Closing Date, each of AT&T and NCR does hereby, for itself and each other member
of the AT&T Services Group and the NCR Group, their respective Affiliates (other
than any member of the Lucent Group),  successors  and assigns,  and all Persons
who at any time prior to the  Closing  Date have been  shareholders,  directors,
officers,  agents or employees of any member of the AT&T  Services  Group or the
NCR  Group (in each  case,  in their  respective  capacities  as such),  remise,
release and  forever  discharge  Lucent,  the  respective  members of the Lucent
Group,  their respective  Affiliates  (other than any member of the AT&T Group),
successors  and  assigns,  and all  Persons who at any time prior to the Closing
Date have been  shareholders,  directors,  officers,  agents or employees of any
member of the Lucent  Group (in each case,  in their  respective  capacities  as
such), and their respective  heirs,  executors,  administrators,  successors and
assigns,  from any and all Liabilities  whatsoever,  whether at law or in equity
(including  any right of  contribution),  whether  arising under any contract or
agreement,  by operation of law or otherwise,  existing or arising from any acts
or events  occurring or failing to occur or alleged to have  occurred or to have
failed to occur or any  conditions  existing  or alleged  to have  existed on or
before the Closing Date,  including in connection with the  transactions and all
other  activities  to  implement  any  of  the  Separation,   the  IPO  and  the
Distribution.

                  (c) Nothing  contained  in Section  5.1(a) or (b) shall impair
any right of any Person to enforce this  Agreement,  any Ancillary  Agreement or
any agreements,  arrangements,  commitments or understandings that are specified
in Section 2.4(b) or the applicable Schedules thereto not to terminate as of the
Closing Date, in each case in accordance  with its terms.  Nothing  contained in
Section 5.1(a) or (b) shall release any Person from:

                  (i) any Liability  provided in or resulting from
any agreement
         among any members of the AT&T Services  Group,  the
Lucent Group or the
         NCR  Group  that is  specified  in  Section  2.4(b)  or
the  applicable
         Schedules  thereto as not to terminate as of the Closing
Date,  or any
         other Liability specified in such Section 2.4(b) as not
to terminate as
         of the Closing Date;

                  (ii)  any   Liability,   contingent  or
otherwise,   assumed,
         transferred, assigned or allocated to the Group of which
such Person is
         a member in accordance  with,  or any other  Liability of
any member of
         any Group under, this Agreement or any Ancillary
Agreement;

                  (iii) any  Liability  for the  sale,  lease,
construction  or
         receipt of goods,  property or services purchased,
obtained or used in
         the ordinary  course of business by a member of one Group
from a member
         of any other Group prior to the Closing Date;

                  (iv) any Liability for unpaid amounts for
products or services
         or refunds owing on products or services due on a
value-received  basis
         for work done by a member of one Group at the request or
on behalf of a
         member of another Group;

                  (v) any  Liability  that the parties may have
with  respect to
         indemnification  or contribution  pursuant to this
Agreement for claims
         brought against the parties by third Persons,  which
Liability shall be
         governed by the provisions of this Article V


<PAGE>

         and Article VI and, if applicable, the appropriate
provisions of the
         Ancillary Agreements; or

                  (vi) any  Liability  the release of which would
result in the
         release of any Person  other than a Person  released
pursuant  to this
         Section  5.1;  provided  that the  parties  agree not to
bring  suit or
         permit any of their  Subsidiaries to bring suit against
any Person with
         respect  to any  Liability  to the  extent  that such
Person  would be
         released with respect to such Liability by this Section
5.1 but for the
         provisions of this clause (vi).

                  (d) Lucent shall not make,  and shall not permit any member of
the Lucent Group to make, any claim or demand,  or commence any Action asserting
any claim or demand, including any claim of contribution or any indemnification,
against AT&T, NCR or any member of the AT&T Services Group or NCR Group,  or any
other  Person  released  pursuant  to  Section  5.1(a),   with  respect  to  any
Liabilities  released pursuant to Section 5.1(a).  AT&T shall not, and shall not
permit any member of the AT&T Services  Group,  to make any claim or demand,  or
commence  any  Action  asserting  any claim or  demand,  including  any claim of
contribution or any indemnification,  against Lucent or any member of the Lucent
Group, or any other Person released pursuant to Section 5.1(b),  with respect to
any Liabilities  released  pursuant to Section 5.1(b).  NCR shall not, and shall
not permit any member of the NCR Group, to make any claim or demand, or commence
any Action asserting any claim or demand, including any claim of contribution or
any  indemnification,  against Lucent or any member of the Lucent Group,  or any
other  Person  released  pursuant  to  Section  5.1(b),   with  respect  to  any
Liabilities released pursuant to Section 5.1(b).

                  (e) It is the intent of each of AT&T, Lucent and NCR by virtue
of the provisions of this Section 5.1 to provide for a full and complete release
and  discharge of all  Liabilities  existing or arising from all acts and events
occurring  or failing to occur or alleged to have  occurred or to have failed to
occur and all  conditions  existing or alleged to have  existed on or before the
Closing Date,  between or among Lucent or any member of the Lucent Group, on the
one hand,  and AT&T,  NCR or any  member of the AT&T  Services  Group or the NCR
Group, on the other hand  (including any contractual  agreements or arrangements
existing or alleged to exist  between or among any such members on or before the
Closing Date),  except as expressly set forth in Section 5.1(c). At any time, at
the  request of any other  party,  each  party  shall  cause each  member of its
respective  Group to execute  and deliver  releases  reflecting  the  provisions
hereof.

                  5.2.  INDEMNIFICATION BY LUCENT. Except as provided in Section
5.4, Lucent shall  indemnify,  defend and hold harmless AT&T, each member of the
AT&T  Services  Group  and  each of their  respective  directors,  officers  and
employees,  and each of the heirs,  executors,  successors and assigns of any of
the foregoing  (collectively,  the "AT&T Indemnitees"),  and NCR, each member of
the NCR Group and each of their  respective  directors,  officers and employees,
and each of the heirs, executors, successors and assigns of any of the foregoing
(collectively, the "NCR Indemnitees"),  from and against any and all Liabilities
of the AT&T  Indemnitees  and the NCR  Indemnitees,  respectively,  relating to,
arising  out  of  or  resulting  from  any  of  the  following   items  (without
duplication):

                  (a) the  failure  of Lucent or any other  member
of the Lucent
         Group  or any  other  Person  to pay,  perform  or
otherwise  promptly
         discharge  any Lucent  Liabilities,  any Nassau Metals
Liabilities  or
         Lucent  Contract in accordance  with their  respective
terms,  whether
         prior to or after the Closing Date or the date hereof;


<PAGE>

                  (b) the Lucent Business, any Lucent Liability,
any Lucent
         Contract or any Nassau Metals Liabilities;

                  (c) any breach by Lucent or any member of the
Lucent Group of
         this Agreement or any of the Ancillary Agreements; and

                  (d) any untrue  statement  or alleged  untrue
statement  of a
         material fact or omission or alleged  omission to state a
material fact
         required  to be stated  therein  or  necessary  to make
the  statements
         therein not misleading,  with respect to all
information  contained in
         any IPO Registration Statement or Prospectus.

                  5.3.  INDEMNIFICATION  BY AT&T  AND BY  NCR.  (a)  AT&T  shall
indemnify,  defend and hold harmless Lucent, each member of the Lucent Group and
each of their  respective  directors,  officers and  employees,  and each of the
heirs, executors,  successors and assigns of any of the foregoing (collectively,
the  "Lucent  Indemnitees"),  from and against  any and all  Liabilities  of the
Lucent  Indemnitees  relating to,  arising out of or  resulting  from any of the
following items (without duplication):

                  (i) the failure of AT&T or any other  member of
the AT&T Group
         or any other Person to pay, perform or otherwise promptly
discharge any
         Liabilities  of the AT&T Group other than the Lucent
Liabilities,  the
         Nassau  Metals  Liabilities  and the NCR Covered
Liabilities,  whether
         prior to or after the Closing Date or the date hereof;

                  (ii) the AT&T  Services  Business or any
Liability of the AT&T
         Group other than the Lucent Liabilities,  the Nassau
Metals Liabilities
         and the NCR Covered Liabilities; and

                  (iii) any  breach by AT&T or any  member of the
AT&T  Services
         Group of this Agreement or any of the Ancillary Agreements.

                  (b) NCR shall indemnify,  defend and hold harmless each Lucent
Indemnitee  from and against any and all  Liabilities of the Lucent  Indemnitees
relating  to,  arising  out of or  resulting  from  any of the  following  items
(without duplication):  (i) the failure of NCR or any member of the NCR Group or
any other Person to pay, perform or otherwise  promptly  discharge any Exclusive
NCR Contingent  Liability or any Shared NCR Percentage of any Shared  Contingent
Liability,  whether  prior to or after the Closing Date or the date hereof;  and
(ii) any breach by NCR or any member of the NCR Group of this  Agreement  or any
of the Ancillary Agreements,  or any other agreement that is not contemplated to
be terminated as of the Closing Date pursuant to Section  2.4(b)  (collectively,
the "NCR Covered Liabilities").

                  (c) NCR shall  indemnify,  defend and hold  harmless each AT&T
Indemnitee  from and against  any and all  Liabilities  of the AT&T  Indemnitees
relating to, arising out of or resulting from any NCR Covered
Liability.

                  5.4. INDEMNIFICATION OBLIGATIONS NET OF INSURANCE PROCEEDS AND
OTHER  AMOUNTS.   (a)  The  parties   intend  that  any  Liability   subject  to
indemnification  or reimbursement  pursuant to this Article V or Article VI will
be net of  Insurance  Proceeds  and any  amounts  recovered  pursuant to an RBOC
Agreement  that actually  reduce the amount of the Liability.  Accordingly,  the
amount  which any party (an  "Indemnifying  Party")  is  required  to pay to any
Person entitled to indemnification hereunder (an "Indemnitee") will be


<PAGE>

reduced by any Insurance Proceeds theretofore actually recovered by or on behalf
of the  Indemnitee  in  reduction  of the  related  Liability  and by any amount
actually theretofore  recovered pursuant to an RBOC Agreement.  If an Indemnitee
receives a payment (an "Indemnity  Payment")  required by this Agreement from an
Indemnifying  Party  in  respect  of any  Liability  and  subsequently  receives
Insurance Proceeds,  or recovers any amount pursuant to an RBOC Agreement,  then
the Indemnitee will pay to the Indemnifying  Party an amount equal to the excess
of the Indemnity  Payment received over the amount of the Indemnity Payment that
would have been due if the Insurance Proceeds and/or RBOC Agreement recovery had
been received, realized or recovered before the Indemnity Payment was made.

                  (b) In  the  case  of any  Shared  Contingent  Liability,  any
Insurance  Proceeds,  or  recoveries  pursuant  to any RBOC  Agreement  actually
received, realized or recovered by any party in respect of the Shared Contingent
Liability will be shared among the parties in such manner as may be necessary so
that the obligations of the parties for such Shared Contingent Liability, net of
such Insurance  Proceeds or recovery pursuant to an RBOC Agreement,  will remain
in proportion to their respective Shared Percentages,  regardless of which party
or parties may actually receive,  realize or recover such Insurance  Proceeds or
amount pursuant to an RBOC Agreement.

                  (c) An insurer who would  otherwise  be  obligated  to pay any
claim shall not be  relieved  of the  responsibility  with  respect  thereto or,
solely by virtue of the indemnification  provisions hereof, have any subrogation
rights with respect  thereto,  it being expressly  understood and agreed that no
insurer or any other third party shall be  entitled  to a  "windfall"  (i.e.,  a
benefit   they  would  not  be  entitled  to  receive  in  the  absence  of  the
indemnification  provisions) by virtue of the indemnification provisions hereof.
Nothing  contained in this Agreement or any Ancillary  Agreement  shall obligate
any member of any Group to seek to collect or recover any Insurance Proceeds.

                  5.5. PROCEDURES FOR INDEMNIFICATION OF THIRD PARTY CLAIMS. (a)
If an Indemnitee  shall receive notice or otherwise  learn of the assertion by a
Person  (including any  Governmental  Authority) who is not a member of the AT&T
Services  Group,  the  Lucent  Group  or the NCR  Group  of any  claim or of the
commencement  by any such  Person of any Action  (collectively,  a "Third  Party
Claim") with respect to which an Indemnifying  Party may be obligated to provide
indemnification to such Indemnitee  pursuant to Section 5.2 or 5.3, or any other
Section of this Agreement or any Ancillary Agreement, such Indemnitee shall give
such Indemnifying Party and, if AT&T is not the Indemnifying Party, AT&T written
notice  thereof  within 20 days after  becoming aware of such Third Party Claim.
Any such notice shall  describe the Third Party Claim in reasonable  detail.  If
any Person shall receive  notice or otherwise  learn of the assertion of a Third
Party  Claim  which  may  reasonably  be  determined  to be a Shared  Contingent
Liability,  such Person (if other than AT&T) shall give AT&T and any other party
to this Agreement  written notice thereof within 20 days after becoming aware of
such Third Party Claim.  Any such notice shall describe the Third Party Claim in
reasonable detail.  Notwithstanding the foregoing, the failure of any Indemnitee
or other  Person to give  notice as provided in this  Section  5.5(a)  shall not
relieve the related  Indemnifying Party of its obligations under this Article V,
except to the extent that such Indemnifying Party is actually prejudiced by such
failure to give notice.


                  (b) If the Indemnitee, the party receiving any notice pursuant
to Section 5.5(a) or any other party to this  Agreement  believes that the Third
Party Claim is or may be a Shared Contingent Liability, such Indemnitee or other
party may make a Determination


<PAGE>

Request  at  any  time  following  any  notice  given  by the  Indemnitee  to an
Indemnifying  Party or given by any other  Person to AT&T  pursuant  to  Section
5.5(a).  AT&T may make such a  Determination  Request  at any time.  Unless  all
parties have  acknowledged  that the applicable Third Party Claim (including any
Third  Party  Claim  set  forth  on  Schedule  6.6) is not a  Shared  Contingent
Liability or unless a  determination  to such effect has been made in accordance
with  Section  6.6,  AT&T shall be entitled  (but not  obligated)  to assume the
defense  of  such  Third  Party  Claim  as if it  were  the  Indemnifying  Party
hereunder. In any such event, AT&T shall be entitled to reimbursement of all the
costs and  expenses  (including  allocated  costs of in-house  counsel and other
personnel) of such defense once a final  determination or acknowledgment is made
as to the status of the Third Party Claim from the  applicable  party or parties
that would  have been  required  to pay such  amounts if the status of the Third
Party Claim had been determined immediately;  provided that, if such Third Party
Claim is determined to be a Shared Contingent Liability, such costs and expenses
shall be shared as provided in Section 5.5(c).

                  (c) AT&T shall  assume the  defense of, and may seek to settle
or compromise,  any Third Party Claim that is a Shared Contingent Liability, and
the costs and expenses (including  allocated costs of in-house counsel and other
personnel)  thereof  shall be included in the  calculation  of the amount of the
applicable  Shared   Contingent   Liability  in  determining  the  reimbursement
obligations of the other parties with respect  thereto  pursuant to Section 6.4.
Any Indemnitee in respect of a Shared Contingent  Liability shall have the right
to employ separate  counsel and to participate in (but not control) the defense,
compromise,  or  settlement  thereof,  but all fees and expenses of such counsel
shall be the expense of such Indemnitee.

                  (d) Other than in the case of a Shared  Contingent  Liability,
an Indemnifying  Party may elect to defend (and,  unless the Indemnifying  Party
has specified any reservations or exceptions,  to seek to settle or compromise),
at such Indemnifying  Party's own expense and by such  Indemnifying  Party's own
counsel,  any Third Party Claim. Within 30 days after the receipt of notice from
an  Indemnitee in accordance  with Section  5.5(a) (or sooner,  if the nature of
such Third Party Claim so  requires),  the  Indemnifying  Party shall notify the
Indemnitee  of  its  election  whether  the   Indemnifying   Party  will  assume
responsibility  for  defending  such Third Party  Claim,  which  election  shall
specify any reservations or exceptions.  After notice from an Indemnifying Party
to an  Indemnitee  of its election to assume the defense of a Third Party Claim,
such  Indemnitee  shall  have  the  right  to  employ  separate  counsel  and to
participate in (but not control) the defense, compromise, or settlement thereof,
but the  fees  and  expenses  of  such  counsel  shall  be the  expense  of such
Indemnitee  except as set forth in the next sentence.  In the event that (i) the
Third Party Claim is not a Shared Contingent Liability and (ii) the Indemnifying
Party has  elected  to assume  the  defense  of the  Third  Party  Claim but has
specified,  and  continues to assert,  any  reservations  or  exceptions in such
notice, then, in any such case, the reasonable fees and expenses of one separate
counsel for all Indemnitees shall be borne by the Indemnifying Party.

                  (e) Other than in the case of a Shared  Contingent  Liability,
if an  Indemnifying  Party elects not to assume  responsibility  for defending a
Third Party Claim,  or fails to notify an Indemnitee of its election as provided
in Section 5.5(d), such Indemnitee may defend such Third Party Claim at the cost
and expense (including  allocated costs of in-house counsel and other personnel)
of the Indemnifying Party.

                  (f)  Unless  the  Indemnifying  Party has failed to assume the
defense of the Third Party Claim in accordance with the terms of this Agreement,
no Indemnitee may


<PAGE>

settle or  compromise  any Third  Party  Claim  that is not a Shared  Contingent
Liability  without the consent of the  Indemnifying  Party.  No  Indemnitee  may
settle or compromise any Third Party Claim that is a Shared Contingent Liability
without the consent of AT&T.

                  (g) In the case of a Third  Party  Claim  that is not a Shared
Contingent  Liability,  no  Indemnifying  Party  shall  consent  to entry of any
judgment  or enter into any  settlement  of the Third  Party  Claim  without the
consent of the  Indemnitee  if the effect  thereof is to permit any  injunction,
declaratory  judgment,  other order or other  nonmonetary  relief to be entered,
directly or  indirectly,  against any  Indemnitee.  In the case of a Third Party
Claim that is a Shared Contingent Liability,  AT&T shall not consent to entry of
any judgment or enter into any  settlement  of the Third Party Claim without the
consent of the  Indemnitee  if the effect  thereof is to permit any  injunction,
declaratory  judgment,  other order or other  nonmonetary  relief to be entered,
directly or indirectly, against any Indemnitee.

                  (h) The  provisions  of Section  5.5 and Section 5.6 shall not
apply to Taxes (which are covered by the Tax Sharing Agreement).

                  5.6.  ADDITIONAL  MATTERS.  (a)  Any  claim  on  account  of a
Liability  which does not result  from a Third  Party Claim shall be asserted by
written notice given by the Indemnitee to the related  Indemnifying  Party. Such
Indemnifying  Party  shall  have a period of 30 days  after the  receipt of such
notice  within which to respond  thereto.  If such  Indemnifying  Party does not
respond within such 30-day period,  such  Indemnifying  Party shall be deemed to
have refused to accept  responsibility  to make  payment.  If such  Indemnifying
Party does not respond  within such 30-day period or rejects such claim in whole
or in part,  such  Indemnitee  shall be free to pursue  such  remedies as may be
available to such party as  contemplated  by this  Agreement  and the  Ancillary
Agreements.

                  (b)  In  the  event  of   payment  by  or  on  behalf  of  any
Indemnifying  Party to any Indemnitee in connection  with any Third Party Claim,
such  Indemnifying  Party shall be subrogated to and shall stand in the place of
such  Indemnitee  as to any  events or  circumstances  in  respect of which such
Indemnitee  may have any right,  defense or claim  relating  to such Third Party
Claim  against any  claimant or  plaintiff  asserting  such Third Party Claim or
against any other person. Such Indemnitee shall cooperate with such Indemnifying
Party in a reasonable manner,  and at the cost and expense (including  allocated
costs of in-house  counsel and other personnel) of such  Indemnifying  Party, in
prosecuting any subrogated right, defense or claim; provided, however, that AT&T
shall be entitled to control the prosecution of any such right, defense or claim
in respect of any Shared Contingent Liability.


                  (c) In the event of an Action in which the Indemnifying  Party
is not a named defendant,  if either the Indemnified Party or Indemnifying Party
shall so request,  the parties  shall  endeavor to substitute  the  Indemnifying
Party for the named defendant or, in the case of a Shared Contingent  Liability,
add the Indemnifying Party as a named defendant, if at all practicable.  If such
substitution  or addition cannot be achieved for any reason or is not requested,
the named defendant shall allow the  Indemnifying  Party to manage the Action as
set forth in this  Section  and,  subject to Section 6.4 with  respect to Shared
Contingent  Liabilities,  the Indemnifying Party shall fully indemnify the named
defendant  against all costs of  defending  the Action  (including  court costs,
sanctions  imposed  by a court,  attorneys'  fees,  experts'  fees and all other
external  expenses,  and the  allocated  costs of  in-house  counsel  and  other
personnel),  the  costs  of any  judgment  or  settlement,  and the  cost of any
interest or penalties relating to any judgment or settlement.



<PAGE>

                  5.7.  REMEDIES  CUMULATIVE.  The  remedies  provided  in  this
Article V shall be  cumulative  and,  subject to the  provisions  of Article IX,
shall not  preclude  assertion  by any  Indemnitee  of any  other  rights or the
seeking of any and all other remedies against any Indemnifying Party.

                  5.8.  SURVIVAL OF  INDEMNITIES.  The rights and obligations of
each of AT&T, Lucent and NCR and their respective Indemnitees under this Article
V shall  survive  the sale or other  transfer  by any  party  of any  Assets  or
businesses or the assignment by it of any Liabilities.

                  5.9. RBOC AGREEMENT  PROCEDURES.  (a) With respect to the RBOC
Agreements, and except as otherwise provided in this Section 5.9 or as otherwise
agreed by the  parties  hereto,  AT&T shall be the party to provide  and receive
notices and all other  information to and from the RBOCs,  and otherwise to deal
with the RBOCs,  in respect of all matters  arising under the RBOC Agreements or
the RBOC Plan.  Without  limiting  the  foregoing,  AT&T shall  continue  as the
representative of all Groups to the contingent  liability  oversight  committee,
except as and to the extent  AT&T and the other  parties to the RBOC  Agreements
may otherwise agree.

                  (b) After the date hereof, AT&T and Lucent will cooperate with
each other to take reasonable  steps to transfer to Lucent the  responsibilities
for providing and receiving  notices and other  information to and from, and for
otherwise  dealing  with,  the RBOCs in  respect of Lucent  Liabilities  and any
Nassau  Metals  Liabilities  that may be subject to sharing with the RBOCs under
any RBOC Agreements  (other than Shared  Contingent  Liabilities,  which will be
controlled  by AT&T in  accordance  with  the  provisions  of  Section  5.5(c)),
including the right to receive directly from the RBOCs any sharing payments that
may be due from the  RBOCs  under  any RBOC  Agreements  in  respect  of  Lucent
Liabilities or Nassau Metals Liabilities. Unless and until such responsibilities
are  transferred to Lucent in accordance  with the foregoing,  the provisions of
the following paragraphs (c), (d) and (e) will apply.

                  (c) In the  event  that  Lucent  determines  that  any  Lucent
Liability  or any  Nassau  Metals  Liability  (other  than a  Shared  Contingent
Liability)  is or may be subject to sharing with the RBOCs  pursuant to any RBOC
Agreement,  and Lucent so requests,  AT&T will promptly submit any notice, claim
or other information or material with respect thereto as may be required by such
RBOC  Agreement  and  provided by Lucent to AT&T in  accordance  with the notice
provisions  of Section 12.5  hereof.  Upon receipt of any amounts from any RBOCs
with respect to their sharing  obligation under an RBOC Agreement relating to an
Lucent Liability or any Nassau Metals Liability (other than a Shared  Contingent
Liability),  AT&T will  promptly  remit such  amounts to Lucent.  AT&T will also
forward to Lucent,  in  accordance  with the notice  provisions  of Section 12.5
hereof, any notices, information or other materials that it may receive from the
RBOCs pursuant to such RBOC Agreement in respect of any Lucent  Liability or any
Nassau Metals Liability.  Notwithstanding the foregoing,  in no event shall AT&T
have any liability for its failure or delay in submitting or forwarding any such
notice,  claim,  information  or other  material  except to the extent Lucent is
prejudiced  thereby.  AT&T shall have no obligation to send, deliver or make any
such  notice or claim,  or take any other  action  under any RBOC  Agreement  in
respect of any Lucent  Liability or any Nassau Metals  Liability,  unless Lucent
shall request that AT&T do so, and provide AT&T with any necessary notice, claim
or other information or material, as set forth above.


<PAGE>

                  (d) In the event any  member of the  Lucent  Group  desires to
commence an arbitration  or other  proceeding to recover any amounts that may be
due under any RBOC  Agreement  in respect of an Lucent  Liability  or any Nassau
Metals Liability (other than a Shared Contingent Liability), AT&T will take such
action as such  member of the Lucent  Group may  reasonably  request to commence
such  arbitration or other  proceeding in accordance  with such RBOC  Agreement,
including  consenting  to be the  named  party  in  such  arbitration  or  other
proceeding,  but  such  arbitration  or other  proceeding  will be  managed  and
controlled  by such  member of the  Lucent  Group and such  member of the Lucent
Group will be  responsible  for the  prosecution  of such  arbitration  or other
proceeding and all decisions made with respect thereto.

                  (e)  Lucent  will,  upon  receipt  of  any  invoice  therefor,
promptly reimburse AT&T for all costs or expenses (including  allocated costs of
in-house counsel and other personnel) incurred in taking any actions pursuant to
the  foregoing  paragraphs  (c) and (d),  and will  defend,  indemnify  and hold
harmless AT&T and each other AT&T  Indemnitee  with respect to all matters taken
at the direction of or on behalf of any member of the Lucent Group in connection
with any RBOC Agreement.

                  (f) Each party hereto further agrees that it will from time to
time  promptly  provide  AT&T  with  all such  information,  notices  and  other
materials  (and shall make available the former,  current and future  directors,
officers, employees, other personnel and agents of the members of its respective
Group as witnesses and any books,  records or other documents within its control
or which it otherwise  has the ability to make  available) as AT&T may determine
to be  necessary  or  advisable to permit AT&T to pursue any rights or potential
rights under each such RBOC Agreement,  to perform the obligations of any member
of the AT&T  Group  under  each  such  RBOC  Agreement  in  accordance  with the
respective  terms thereof and to defend  itself,  its  Affiliates  and any other
Person   for  which  AT&T  may  have  any   indirect   liability   (through   an
indemnification  obligation  or otherwise)  from any claims or potential  claims
thereunder.

                  5.10.  ALLEGED  INFRINGEMENT  OR  MISAPPROPRIATION.   (a)  The
provisions of this Section 5.10 shall apply notwithstanding any other provisions
of this Agreement or any Ancillary Agreement. In the event of any claim, action,
proceeding  or suit by a third  party  against  any  member  of the  AT&T  Group
alleging an infringement of any patent, copyright, trademark or misappropriation
of a trade  secret  with  respect to any  product,  software  or other  material
provided by or ordered from the Lucent Business prior to the Closing Date (other
than any such product,  software or other  material  provided  under and ordered
pursuant to the AT&T General Purchase Agreement,  or any supplemental or related
agreement  thereto,  with respect to which an infringement  or  misappropriation
indemnity  is  provided  under  such  agreement)  for use by the  AT&T  Services
Business or the NCR  Business  (whether  used alone or in  combination  with any
product,  software or other  material  provided  by the Lucent  Business or by a
third party),  Lucent, at its expense,  shall defend and hold harmless each such
member of the AT&T Group with respect to such claim, action, proceeding or suit,
subject to the conditions and exceptions  stated in paragraphs  (b), (c) and (d)
below.  Lucent shall reimburse each such member of the AT&T Group for all costs,
expenses or attorneys' fees (including  allocated costs of in-house  counsel and
other  personnel)  incurred at Lucent's  written request or  authorization,  and
shall  indemnify  each  such  member of the AT&T  Group  against  any  liability
assessed  against  it by final  judgment,  on account  of such  infringement  or
misappropriation arising out of such use.

                  (b) If the use by any  member  of the  AT&T  Group of any such
product,  software or other material  referred to in Section 5.10(a) is enjoined
or in the opinion of


<PAGE>

such member of the AT&T Group is likely to be  enjoined,  Lucent  shall,  at its
expense and at the sole option of such member of the AT&T Group, (i) replace the
enjoined  product,   software  or  materials  with  a  substitute  free  of  any
infringement;  (ii) modify the enjoined  product,  software or materials so that
they will be free of the  infringement;  or (iii) procure for such member of the
AT&T Group a license or other  right to use the  enjoined  product,  software or
materials. In the alternative, such member of the AT&T Group, may at its option,
procure a license  with a  reasonable  royalty  rate  payable to the third party
alleging infringement,  and Lucent shall reimburse,  indemnify and hold harmless
such member of the AT&T Group for all liability  for payment of such  reasonable
royalty.

                  (c) AT&T or another member of the AT&T Group shall give Lucent
prompt written notice of all such claims, actions, proceedings or suits alleging
infringement  or  misappropriation  and  Lucent  shall  have  full and  complete
authority to assume the sole defense thereof,  including appeals,  and to settle
the same; provided,  however,  that this does not limit any rights of any member
of the AT&T Group  concerning  injunctions  addressed  in Section  5.10(b).  The
members of the AT&T Group shall,  upon Lucent's request and at Lucent's expense,
furnish all  information  and  assistance  available to such members of the AT&T
Group and cooperate in every  reasonable  way to facilitate  the defense  and/or
settlement of any such claim, action, proceeding or suit.

                  (d) The  foregoing  indemnity  will not  apply to any  alleged
infringement or misappropriation if and to the extent such alleged  infringement
or  misappropriation  arises from (i) the use by any member of the AT&T Group of
any product,  software or other  material  provided by the Lucent  Business,  in
combination  with any product,  software or other  material  provided  after the
Closing Date by a third party  (other than any  third-party  product,  software,
other  material or components  furnished to such member of the AT&T Group by any
member of the Lucent Group),  or (ii) any changes made by any member of the AT&T
Group after the Closing  Date in any  combination  of any  product,  software or
other material  provided by the Lucent Business,  with any product,  software or
other material  provided by a third party (other than any  third-party  product,
software,  other material or components  furnished by the Lucent Group),  except
for the  addition of any  product,  software or other  material  provided by any
member of the Lucent  Group after the Closing  Date to any such  combination  in
place as of the Closing Date.

                                   ARTICLE VI
                   CONTINGENT GAINS AND CONTINGENT LIABILITIES

                  6.1. DEFINITIONS RELATING TO CONTINGENT GAINS
AND CONTINGENT
LIABILITIES. For the purpose of this Agreement the following terms
shall have
the following meanings:

                  (a) CONTINGENT  CLAIM COMMITTEE means a committee  composed of
one representative  designated from time to time by each of AT&T, NCR and Lucent
that shall be established in accordance with Section 6.6.

                  (b)  CONTINGENT  GAIN means any claim or other  right of AT&T,
Lucent, NCR or any their respective  Affiliates,  whenever arising,  against any
Person other than AT&T,  Lucent, NCR or any of their respective  Affiliates,  if
and to the  extent  that (i) such claim or right has  accrued as of the  Closing
Date (based on then existing law) and (ii) the


<PAGE>

existence or scope of the obligation of such other Person as of the Closing Date
was not  acknowledged,  fixed or  determined in any material  respect,  due to a
dispute  or other  uncertainty  as of the  Closing  Date or as a  result  of the
failure of such claim or other right to have been  discovered  or asserted as of
the Closing  Date. A claim or right meeting the  foregoing  definition  shall be
considered a Contingent Gain regardless of whether there was any Action pending,
threatened  or  contemplated  as of the Closing Date with respect  thereto.  For
purposes of the  foregoing,  a claim or right shall be deemed to have accrued as
of the Closing Date if all the elements of the claim necessary for its assertion
shall have  occurred  on or prior to the  Closing  Date,  such that the claim or
right,  were it asserted in an Action on or prior to the Closing Date, would not
be  dismissed  by a court on ripeness or similar  grounds.  Notwithstanding  the
foregoing,  none of (i) any payment to any member of any Group pursuant to or in
respect of any of the RBOC Agreements,  (ii) any Insurance  Proceeds,  (iii) any
Excluded  Assets,  (iv) any reversal of any litigation or other reserve,  or (v)
any matters relating to Taxes (which are governed by the Tax Sharing  Agreement)
shall deemed to be a Contingent Gain.

                  (c)  CONTINGENT  LIABILITY  means any  Liability,  other  than
Liabilities  for Taxes  (which are  governed by the Tax Sharing  Agreement),  of
AT&T, Lucent, NCR or any of their respective  Affiliates,  whenever arising,  to
any Person other than AT&T, Lucent,  NCR or any of their respective  Affiliates,
if and to the extent that (i) such  Liability has accrued as of the Closing Date
(based on then existing  law) and (ii) the existence or scope of the  obligation
of AT&T,  Lucent,  NCR or any of their  respective  Affiliates as of the Closing
Date with respect to such Liability was not acknowledged, fixed or determined in
any material  respect,  due to a dispute or other  uncertainty as of the Closing
Date or as a result of the failure of such Liability to have been  discovered or
asserted as of the Closing  Date (it being  understood  that the  existence of a
litigation  or  other  reserve  with  respect  to  any  Liability  shall  not be
sufficient  for  such  Liability  to  be  considered   acknowledged,   fixed  or
determined).  In the case of any  Liability a portion of which had accrued as of
the Closing Date and a portion of which  accrues  after the Closing  Date,  only
that  portion  that had accrued as of the  Closing  Date shall be  considered  a
Contingent Liability. For purposes of the foregoing, a Liability shall be deemed
to have  accrued as of the Closing Date if all the  elements  necessary  for the
assertion of a claim with respect to such  Liability  shall have  occurred on or
prior to the Closing Date, such that the claim, were it asserted in an Action on
or prior to the Closing  Date,  would not be dismissed by a court on ripeness or
similar grounds.  For purposes of  clarification  of the foregoing,  the parties
agree that no  Liability  relating  to,  arising  out of or  resulting  from any
obligation  of any Person to perform the  executory  portion of any  contract or
agreement  existing as of the Closing Date, or to satisfy any obligation accrued
under any Plan (as defined in the Employee Benefits Agreement) as of the Closing
Date, shall deemed to be a Contingent Liability.

                  (d)  EXCESS  PORTION  means  that  portion,  if  any,  of  the
aggregate  Value of all amounts  actually  paid by AT&T,  Lucent or NCR (in each
case,  together  with any members of its  respective  Group),  in respect of any
single  Exclusive  Contingent  Liability of such Group or any Related  Exclusive
Contingent Liabilities of such Group that is in excess of $100 million.

                  (e) EXCLUSIVE AT&T  CONTINGENT  GAIN means any
Contingent Gain
if such  Contingent  Gain  primarily  relates  to any  AT&T
Services  Business,
including the matters listed or described on Schedule 6.1(e) hereto,  or if such
Contingent Gain is expressly assigned to AT&T pursuant to this Agreement or any
Ancillary Agreement.


<PAGE>

                  (f) EXCLUSIVE LUCENT CONTINGENT GAIN means any Contingent Gain
if such Contingent Gain primarily relates to any Lucent Business,  including the
matters  listed or described on Schedule  6.1(f) hereto,  or if such  Contingent
Gain is expressly assigned to Lucent pursuant to this Agreement or any Ancillary
Agreement.

                  (g) EXCLUSIVE NCR CONTINGENT GAIN means any Contingent Gain if
such  Contingent  Gain  primarily  relates to any NCR  Business,  including  the
matters  listed or described on Schedule  6.1(g) hereto,  or if such  Contingent
Gain is expressly  assigned to NCR pursuant to this  Agreement or any  Ancillary
Agreement.

                  (h) EXCLUSIVE AT&T  CONTINGENT  LIABILITY means any Contingent
Liability (other than an RBOC Liability) if such Contingent  Liability primarily
relates to any AT&T Services Business, including the matters listed or described
on Schedule 6.1(e) hereto (as supplemented  pursuant to Section  6.6(d)),  or if
such  Contingent  Liability  is  expressly  assigned  to AT&T  pursuant  to this
Agreement or any Ancillary Agreement.

                  (i) EXCLUSIVE  CONTINGENT  LIABILITY  means any Exclusive AT&T
Contingent Liability, Exclusive NCR Contingent Liability or Exclusive Lucent
Contingent Liability.


                  (j) EXCLUSIVE LUCENT CONTINGENT LIABILITY means any Contingent
Liability  (other  than an RBOC  Liability)  if (i)  such  Contingent  Liability
primarily  relates to any Lucent  Business or to the matters listed or described
on Schedule  2.3(a)(v),  including  the matters  listed or described on Schedule
6.1(f) (as supplemented pursuant to Section 6.6(d)) hereto, (ii) such Contingent
Liability relates to, arises out of or results from any Nassau Metals Liability,
or (iii) such Contingent  Liability is expressly  assigned to Lucent pursuant to
this  Agreement or any Ancillary  Agreement.  The parties agree that the matters
specified on Schedule  6.1(f)(iv) shall be deemed  Exclusive  Lucent  Contingent
Liabilities to the extent reflected thereon.

                  (k) EXCLUSIVE NCR  CONTINGENT  LIABILITY  means any Contingent
Liability (other than an RBOC Liability) if such Contingent  Liability primarily
relates to any NCR  Business,  including  the  matters  listed or  described  on
Schedule 6.1(g) (as supplemented  pursuant to Section 6.6(d)) hereto, or if such
Contingent  Liability is expressly assigned to NCR pursuant to this Agreement or
any Ancillary Agreement.

                  (l) RELATED EXCLUSIVE CONTINGENT LIABILITIES of
any Group
means:

                  (i) in the case of any  Exclusive  Contingent
Liabilities  of
         such Group other than  Environmental  Liabilities,  any
set or group of
         Exclusive  Contingent  Liabilities of such Group (but not
including any
         Exclusive Contingent Liabilities of any other Group) arising from:

                           (A) any single Action (including any
group of Actions
                  that are  consolidated  as a single  Action  and
any Action or
                  Actions certified as a class action);

                           (B) any Action that is brought or
threatened to be
                  brought as a class action and that is settled; or

                           (C)  any  group  of  Actions   (other
than  workers'
                  compensation  Actions  by or on behalf  of
former or  current
                  employees  of any member of such  Group)
asserting  claims in
                  respect of repetitive stress injuries (RSIs) that


<PAGE>

                  arise or are alleged to arise from the
manufacture or sale of
                  equipment, such as computer keyboards, to third
parties; and

                  (ii) in the case of any Exclusive  Contingent
Liabilities  of
         such Group that are Environmental Liabilities:

                           (A) any and all Environmental
Liabilities of such
                  Group associated with a single site; and

                           (B)  any and all  Environmental
Liabilities  of such
                  Group arising from  separate  sites but listed
on the National
                  Priorities List as a single site.
Exclusive  Contingent
                  Liabilities of such Group that are
Environmental  Liabilities
                  of such Group  arising  from sites  listed
separately  on the
                  National  Priorities  List  shall not be deemed
to be  Related
                  Exclusive Contingent Liabilities.  Whether sites
not listed on
                  the National  Priorities  List shall be deemed
to be a "single
                  site" for purposes of clause (B) of this
definition  shall be
                  determined by applying the  definition of
"on-site"  contained
                  in 40 C.F.R.  Section 300.5 (as in effect an as
of the date of
                  this  Agreement)  which provides that "On-site
means the areal
                  extent of  contamination  and all suitable areas
in very close
                  proximity to the contamination necessary for
implementation of
                  the response action." Site identifications by a
state or local
                  Governmental  Authority  similar in import to
those authorized
                  by the definition of "on-site" in 40 C.F.R.
Section 300.5 (as
                  in effect as of the date of this Agreement)
shall similarly be
                  determinative  of  whether  sites not  listed on
the  National
                  Priorities  List  shall be deemed  to be a
"single  site" for
                          purposes of this definition.

                  (m) SHARED AT&T PERCENTAGE means 75%.

                  (n) SHARED  CONTINGENT  GAIN means any Contingent Gain that is
not an Exclusive AT&T Contingent Gain, an Exclusive Lucent Contingent Gain or an
Exclusive NCR Contingent Gain, including any Contingent
Gain relating to,
arising out of or resulting from the matters set forth on Schedule
6.1(n).

                  (o) SHARED CONTINGENT LIABILITY means, without
duplication:

                  (i) any Contingent Liability that is not an
Exclusive AT&T
         Contingent Liability, an Exclusive Lucent Contingent
Liability or an
         Exclusive NCR Contingent Liability;

                  (ii) any RBOC Liability;

                  (iii) any Liability (other than Taxes) relating
to, arising
         out of or resulting from any Other Discontinued
Operation; and

                  (iv) any Liability (other than Taxes) relating
to, arising out
         of or resulting from the matters set forth on Schedule
6.1(n).

                  (p)  SHARED NCR PERCENTAGE means 3%.

                  (q)  SHARED LUCENT PERCENTAGE means 22%.


<PAGE>

                  (r) SHARED  PERCENTAGE means the Shared AT&T
Percentage,  the
Shared NCR Percentage or the Shared Lucent Percentage, as the case
may be.

                  (s) VALUE means the aggregate amount of all cash payments, the
fair market value of all non-cash payments and the incremental cost of providing
any goods or services  made or provided in respect of any  Exclusive  Contingent
Liability or Related Exclusive Contingent  Liabilities,  whether in satisfaction
of any judgment,  in settlement of any Action or threatened  Action or otherwise
(including all costs and expenses (including allocated costs of in-house counsel
and other  personnel),  of defending or  investigating  any Action or threatened
Action),  net of: (i) any Insurance  Proceeds received or realized in respect of
the applicable  Exclusive  Contingent  Liability or Related Exclusive Contingent
Liabilities  (applied in  reduction  of the  applicable  Liability in the manner
contemplated  by  Section  5.4),  (ii) any Tax  benefits  associated  with  such
payments or the provision of such goods or services (based on assumed  effective
Tax rate equal to the effective Tax rate of the applicable  party for the fiscal
year immediately  preceding the year in which such payments are made or goods or
services provided (it being understood that the effective Tax rate for any party
whose earnings for such  immediately  preceding fiscal year are consolidated for
federal income tax purposes with another  corporation shall be the effective Tax
rate  of the  corporation  filing  such  federal  income  tax  return  for  such
immediately  preceding fiscal year)), (iii) any amounts received pursuant to any
RBOC  Agreement  in respect of the  Exclusive  Contingent  Liability  or Related
Exclusive Contingent Liabilities, (iv) any other amounts recovered (including by
way of set off)  from a third  party in  connection  with  any  such  Action  or
threatened Action and (v) the amount of any reserve,  account payable or similar
accrual in respect of the Exclusive  Contingent  Liability or Related  Exclusive
Contingent  Liabilities,  net of any  offsetting  receivables in respect of such
Exclusive Contingent Liability or Related Exclusive Contingent  Liabilities,  in
each case as reflected on the Lucent  Balance Sheet or the audited  consolidated
balance sheet of AT&T, including the notes thereto, as of December 31, 1995 (and
without giving effect to any subsequent adjustment of any such reserve,  account
payable, accrual or offsetting receivable).

                  6.2.  CONTINGENT GAINS. (a) Each of AT&T, Lucent and NCR shall
have sole and  exclusive  right to any  benefit  received  with  respect  to any
Exclusive AT&T Contingent Gain,  Exclusive  Lucent  Contingent Gain or Exclusive
NCR Contingent Gain, respectively.  Each of AT&T, Lucent and NCR shall have sole
and  exclusive  authority  to  commence,  prosecute,  settle,  manage,  control,
conduct, waive, forego, release, discharge,  forgive and otherwise determine all
matters whatsoever with respect to any Exclusive AT&T Contingent Gain, Exclusive
Lucent Contingent Gain or Exclusive NCR Contingent Gain, respectively.

                  (b)  Any  benefit  that  may  be  received   from  any  Shared
Contingent Gain shall be shared among AT&T,  Lucent and NCR in proportion to the
Shared  AT&T  Percentage,  the  Shared  Lucent  Percentage  and the  Shared  NCR
Percentage,  respectively,  and shall be paid in  accordance  with  Section 6.5.
Notwithstanding  the foregoing,  AT&T shall have sole and exclusive authority to
commence,  prosecute,  settle, manage, control,  conduct, waive, forgo, release,
discharge,  forgive and otherwise  determine all matters whatsoever with respect
to any Shared Contingent Gain.  Neither Lucent nor NCR shall take, or permit any
member of their respective Groups to take, any action (including  commencing any
claim) that would  interfere with such rights and powers of AT&T. AT&T shall use
its  reasonable  efforts  to notify  each of Lucent and NCR in the event that it
commences an Action with respect to a Shared Contingent Gain;  provided that the
failure to provide  such notice shall not give rise to any rights on the part of
Lucent or NCR against  AT&T or affect any other  provision  of this Section 6.2.
Each of Lucent and NCR acknowledges that AT&T may


<PAGE>

elect  not to  pursue  any  Shared  Contingent  Gain for any  reason  whatsoever
(including a different  assessment  of the merits of any Action,  claim or right
than Lucent or NCR or any  business  reasons  that are in the best  interests of
AT&T or a  member  of the  AT&T  Services  Group,  without  regard  to the  best
interests of any member of the Lucent Group or the NCR Group) and that no member
of the AT&T Group shall have any liability to any Person  (including  any member
of the Lucent Group or the NCR Group) as a result of any such determination.

                  (c) In the event of any  dispute  as to  whether  any claim or
right is a Contingent Gain or whether any Contingent Gain is a Shared Contingent
Gain, an Exclusive AT&T Contingent Gain, an Exclusive Lucent  Contingent Gain or
an Exclusive  NCR  Contingent  Gain,  AT&T may,  but shall not be obligated  to,
commence  prosecution  or  other  assertion  of  such  claim  or  right  pending
resolution  of  such  dispute.  In  the  event  that  AT&T  commences  any  such
prosecution or assertion and, upon resolution of the dispute, a party other than
AT&T is determined hereunder to have the exclusive right to such claim or right,
AT&T shall,  promptly  upon the  request of such other  party,  discontinue  the
prosecution or assertion of such right or claim and transfer the control thereof
to the party so determined to have the right thereto.  In such event,  the party
having the right to such claim or right  will  reimburse  AT&T for all costs and
expenses  (including  allocated costs of in-house counsel and other  personnel),
reasonably  incurred  prior to resolution of such dispute in the  prosecution or
assertion of such claim or right.

                  6.3. EXCLUSIVE CONTINGENT LIABILITIES. (a) Except as otherwise
provided in this Section 6.3,  each  Exclusive  Contingent  Liability or Related
Exclusive   Contingent   Liability  shall   constitute  a  Liability  for  which
indemnification is provided by AT&T, Lucent or NCR, as the case may be, pursuant
to Article V hereof and shall be subject to the  procedures set forth in Article
V with respect thereto.

                  (b)   Notwithstanding   anything  to  the   contrary  in  this
Agreement,  except as set forth in  paragraph  (f) of this  Section  6.3, if the
aggregate  Value of all  amounts  paid by  AT&T,  Lucent  or NCR (in each  case,
together  with any  members  of its  respective  Group) in respect of any single
Exclusive Contingent Liability of such Group or any Related Exclusive Contingent
Liabilities of such Group is in excess of $100 million,  each of AT&T, Lucent or
NCR, as the case may be,  shall be entitled  to  reimbursement  from each of the
others  for a share of the  Excess  Portion  in  accordance  with the  following
percentages:

                  (i) in the case of Exclusive AT&T Contingent
Liabilities, AT&T
         shall bear 75  percent of such  Excess  Portion,  Lucent
shall bear 22
         percent of such  Excess  Portion,  and NCR shall bear 3
percent of such
         Excess Portion;

                  (ii) in the case of Exclusive NCR Contingent
Liabilities,  NCR
         shall  bear 50  percent  of such  Excess  Portion,  AT&T
shall bear 37
         percent of such Excess Portion and Lucent shall bear 13
percent of such
         Excess Portion; and

                  (iii) in the case of Exclusive Lucent
Contingent  Liabilities,
         Lucent shall bear 50 percent of such Excess Portion, AT&T shall bear 47
         percent  of such  Excess  Portion  and NCR shall bear 3
percent of such
         Excess Portion.

                  (c) In the event that  after any  payment is made by any party
to any other  party in  accordance  with the  allocation  set  forth in  Section
6.3(b),  any party or any member of such party's  Group  receives any  Insurance
Proceeds,  obtains any  recovery  pursuant to an RBOC  Agreement  or obtains any
other amounts that, in any such case, would reduce the


<PAGE>

Value of all amounts  paid by such party and the members of its Group in respect
of the applicable Exclusive Contingent Liability or Liabilities, such party will
promptly  notify each other party of the receipt of such  Insurance  Proceeds or
recovery of such amount  pursuant to an RBOC  Agreement  or  otherwise  and will
promptly  reimburse  each other  party for the amount of any  payment  that such
first party  would not have been  entitled  to receive if it had  received  such
Insurance  Proceeds or obtained such recovery  pursuant to an RBOC  Agreement or
otherwise  on or  prior to the  date it  received  a  payment  pursuant  to this
Section.  Each such repayment will be accompanied by interest  accruing from the
date of receipt of the original  payment pursuant to this Section to the date of
such repayment at a rate equal to the Prime Rate plus 2% per annum.

                  (d) Each party  agrees to use its  reasonable  best efforts to
advise each other party if it becomes aware of one or more Exclusive  Contingent
Liabilities  that may  result  in a Value  of $100  million  or more;  provided,
however,  that no failure to give any such notice shall  relieve any other party
of any obligation  pursuant to this Agreement.  In the event of any such notice,
or if any other party  otherwise  determines  that any such risk may exist,  the
other  parties will be entitled at their own expense to monitor any such Action.
In any such  event,  the  parties  will enter into a mutually  acceptable  joint
defense  agreement so as to maintain to the extent  reasonably  practicable  the
attorney-client privilege with respect thereto.

                  (e) It shall not be a defense to any  obligation  by any party
to pay any  amount in  respect  of any  Excess  Portion  that such party was not
consulted in the defense thereof,  that such party's views or opinions as to the
conduct of such defense  were not accepted or adopted,  that such party does not
approve of the  quality  or manner of the  defense  thereof or that such  Excess
Portion  was  incurred  by reason of a  settlement  rather than by a judgment or
other  determination  of liability  (even if,  subject to Section  5.5(g),  such
settlement  was  effected  without  the  consent or over the  objection  of such
party).

                  (f)  Neither   AT&T  nor  Lucent  (nor  any  member  of  their
respective  Groups) will be entitled to  reimbursement  pursuant to this Section
6.3 for a share of the Excess  Portion in  respect of any  Exclusive  Contingent
Liability or Related Exclusive  Contingent  Liabilities that would be subject to
sharing with the RBOCs  pursuant to any RBOC  Agreement,  unless the  applicable
party shall have pursued in good faith any recovery to which it or any member of
its Group may be entitled under such RBOC Agreement in respect of such Exclusive
Contingent Liability or Related Exclusive Contingent Liabilities.

                  6.4.  SHARED  CONTINGENT  LIABILITIES.  (a)  As set  forth  in
Section  5.5(c),  AT&T shall  assume the  defense  of, and may seek to settle or
compromise, any Third Party Claim that is a Shared Contingent Liability, and the
costs and  expenses  (including  allocated  costs of in-house  counsel and other
personnel)  thereof  shall be included in the  calculation  of the amount of the
applicable  Shared   Contingent   Liability  in  determining  the  reimbursement
obligations of the other parties with respect  thereto  pursuant to this Section
6.4.

                  (b) Each of AT&T,  Lucent and NCR shall be responsible for its
Shared Percentage of any Shared Contingent Liability.  It shall not be a defense
to any  obligation  by any party to pay any  amount  in  respect  of any  Shared
Contingent  Liability that such party was not consulted in the defense  thereof,
that such  party's  views or opinions as to the conduct of such defense were not
accepted or adopted, that such party does not approve of the


<PAGE>

quality  or  manner  of the  defense  thereof  or that  such  Shared  Contingent
Liability  was incurred by reason of a  settlement  rather than by a judgment or
other  determination  of liability  (even if,  subject to Section  5.5(g),  such
settlement  was  effected  without  the  consent or over the  objection  of such
party).

                  6.5.  PAYMENTS.  (a) Any amount  owed in respect of any Shared
Contingent  Liabilities  (including   reimbursement  for  the  cost  or  expense
(including  allocated costs of in-house  counsel and other personnel) of defense
of (i) any Third Party Claim that is a Shared  Contingent  Liability),  (ii) any
Excess  Portion  of any  Exclusive  Contingent  Liabilities  or of  any  Related
Exclusive  Contingent  Liabilities or (iii) any Shared Contingent Gains pursuant
to this Article VI shall be remitted  promptly  after the party entitled to such
amount provides an invoice  (including  reasonable  supporting  information with
respect thereto) to the party owing such amount.

                  (b) In the case of any Shared Contingent Liability, AT&T shall
be  entitled  to  reimbursement  from  Lucent  and  NCR in  advance  of a  final
determination  of any Action for amounts  paid in respect of costs and  expenses
(including  allocated  costs of in-house  counsel and other  personnel)  related
thereto,  from time to time as such costs and expenses are incurred. In the case
of any Shared  Contingent Gain, AT&T shall be entitled to retain from the amount
of the Shared  Contingent Gain otherwise payable to Lucent and NCR, Lucent's and
NCR's  respective  Shared  Percentage  of  the  costs  and  expenses  (including
allocated costs of in-house  counsel and other personnel) paid or incurred by or
on  behalf of any  member of the AT&T  Services  Group in  connection  with such
Shared Contingent Gain.

                  (c) Any amounts billed and properly payable in accordance with
this  Article  VI that are not  paid  within  30 days of such  bill  shall  bear
interest at the Prime Rate plus 2% per annum.


                  6.6. PROCEDURES TO DETERMINE STATUS OF
CONTINGENT LIABILITY OR
CONTINGENT  GAIN. (a) With respect to the Actions set forth on
Schedule 6.6, and
with  respect to any other  matters not set forth on Schedules
6.1(e),  6.1(f),
6.1(g) or 6.1(n)  (regardless of whether such matters are currently  pending but
not set forth on such  Schedules  or are  asserted  or filed  hereafter),  AT&T,
Lucent  and NCR will form the  Contingent  Claim  Committee  for the  purpose of
resolving whether:


                  (i) any claim or right is a Contingent Gain;

                  (ii) any Contingent Gain is a Shared Contingent
Gain, an
         Exclusive AT&T Contingent Gain, an Exclusive Lucent
Contingent Gain or
         an Exclusive NCR Contingent Gain;

                  (iii) any Liability is a Contingent Liability;

                  (iv) any Contingent Liability is a Shared
Contingent
         Liability, an Exclusive AT&T Contingent Liability, an
Exclusive Lucent
         Contingent Liability or an Exclusive NCR Contingent
Liability; or

                  (v) any Exclusive Contingent Liabilities
constitute Related
         Exclusive Contingent Liabilities.

                  (b) Any of the  parties  may  refer any  potential  Contingent
Gains or Contingent Liabilities to the Contingent Claim Committee for resolution
as described in Section


<PAGE>

6.6(a) and the Contingent Claim Committee's  determination  (which shall be made
within 30 days of such referral),  if unanimous,  shall be binding on all of the
parties  and their  respective  successors  and  assigns.  In the event that the
Contingent  Claim  Committee  cannot reach a unanimous  determination  as to the
nature or status of any such Contingent  Liabilities or Contingent  Gains within
30 days  after  such  referral,  the issue  will be  submitted  for  arbitration
pursuant to the procedures set forth in Article IX of this Agreement, subject to
Section 9.8. The outcome of the  arbitration  pursuant to Article IX (subject to
Section  9.8) shall be final and  binding on all  parties  and their  respective
successors and assigns.



                  (c) In  resolving,  with  respect  to any  Action set forth on
Schedule  6.6 or any other  matter not set forth in  Schedules  6.1(e),  6.1(f),
6.1(g) and 6.1(n),  whether (i) any Contingent Gain is a Shared Contingent Gain,
an Exclusive AT&T  Contingent  Gain, an Exclusive  Lucent  Contingent Gain or an
Exclusive  NCR  Contingent  Gain or (ii) any  Contingent  Liability  is a Shared
Contingent  Liability,  an Exclusive  AT&T  Contingent  Liability,  an Exclusive
Lucent  Contingent  Liability  or an Exclusive  NCR  Contingent  Liability,  the
categorization  of Contingent  Claims and  Contingent  Liabilities  reflected in
Schedules  6.1(e),  6.1(f),  6.1(g) and 6.1(n) shall be considered and used as a
precedential guide.




                  (d) At any  time or from  time to time  prior  to the  Closing
Date, the Solicitor General of AT&T, following consultation with representatives
of each of Lucent and NCR, may amend or supplement any of
Schedules  6.1(e),
6.1(f), 6.1(g) and 6.1(n). Without limiting the foregoing,  prior to the Closing
Date, the parties will continue to review Schedule 6.6 to determine  whether any
matter set forth therein will be reassigned to one of Schedules
6.1(e),  6.1(f),
6.1(g) or 6.1(n).

                  6.7.  CERTAIN  CASE  ALLOCATION  MATTERS.  (a)  Lucent and NCR
acknowledge  that  Third  Party  Claims  may be  asserted  in respect of alleged
repetitive stress injuries in a single Action (including a group of consolidated
Actions) that involve both computer keyboards or related equipment  manufactured
in the conduct of the NCR Business  (which  would  constitute  an Exclusive  NCR
Contingent  Liability) and computer keyboards or related equipment  manufactured
in the  conduct  of  the  discontinued  computer  operations  of  AT&T  and  its
Affiliates,  other than any member of the NCR Group (which would  constitute  an
Exclusive  Lucent  Contingent  Liability).  Lucent  and NCR  agree to use  their
reasonable  best efforts to share  responsibility  (including  for all costs and
expenses  (including  allocated costs of in-house counsel and other  personnel))
for any such Third Party Claims or Actions,  notwithstanding  any  allocation of
such Actions set forth in Schedules 6.1(e),  6.1(f), 6.1(g) and 6.1(n), so that,
to the maximum  extent  reasonably  practicable,  the parties will have the same
rights and  obligations  (including  pursuant to Article V hereof) as would have
been  applicable if such matters had been commenced as separate  Actions.  Third
Party   Claims  with  respect  to  computer   keyboards  or  related   equipment
manufactured  in the  conduct  of the NCR  Business  shall  not be  deemed to be
Related Exclusive Contingent Liabilities with Third Party Claims with respect to
any computer  keyboards or related equipment  manufactured in the conduct of the
discontinued  computer  operations  of AT&T and its  Affiliates  (other than any
member of the NCR Group).

                  (b) The  parties  agree  that if any  Action  not set forth on
Schedule 6.1(e),  6.1(f), 6.1(g) or 6.1(n) involves separate and distinct claims
that, if not joined in a single  Action,  would  constitute  separate  Exclusive
Contingent  Liabilities of two or more parties,  they will use their  reasonable
best  efforts  to  segregate  such  separate  and  distinct  claims  so that the
Liabilities  associated  with each such claim  (including all costs and expenses
(including  allocated costs of in-house counsel and other  personnel))  shall be
treated as Exclusive Contingent Liabilities of the appropriate party and so that
each party shall have the rights


<PAGE>

and obligations with respect to each such claim (including pursuant to Article V
hereof) as would have been applicable had such claims been commenced as separate
Actions. Notwithstanding the foregoing provisions, this Section 6.7(b) shall not
apply to any  separate  and  distinct  claim that is de minimis or  frivolous in
nature.


                  (c) The parties  agree that  notwithstanding  anything in this
Agreement to the contrary,  all  Liabilities  arising out of,  resulting from or
relating  to  the  Action  commenced  by  Bell  Atlantic   Corporation  and  DSC
Communications Corporation against AT&T and Lucent in the United States District
Court for the Eastern  District of Texas on February 14, 1996, (i) to the extent
relating to Caller ID services,  shall be Exclusive AT&T Contingent  Liabilities
and (ii) to the extent  relating  to  telecommunications  equipment,  systems or
software,  shall be Exclusive Lucent  Contingent  Liabilities;  provided however
that  each of the  parties  shall  bear its own costs  and  expenses  (including
allocated costs of in-house  counsel and other  personnel) of defending any such
claims,   including  any  such  costs  and  expenses  of  any  related  document
productions.

                                   ARTICLE VII
                  INTERIM OPERATIONS AND CERTAIN OTHER MATTERS

                  7.1. INSURANCE MATTERS.  (a) Lucent agrees that it will pay to
AT&T $1 million per month  (prorated on a daily basis for any partial  month) in
respect of the period from the date hereof  until the  Distribution  Date,  such
amount to be payable in arrears by the 10th day of the next succeeding month, in
respect of Insurance  Policies under which Lucent will continue to have coverage
following  the date hereof.  AT&T and Lucent agree to cooperate in good faith to
provide for an orderly  transition  of insurance  coverage  from the date hereof
through the  Distribution  Date and for the treatment of any Insurance  Policies
that will remain in effect  following  the Closing Date on a mutually  agreeable
basis.  In no event shall AT&T,  any other  member of the AT&T Group or any AT&T
Indemnitee or NCR  Indemnitee  have  liability or  obligation  whatsoever to any
member of the  Lucent  Group in the  event  that any  Insurance  Policy or other
contract or policy of insurance  shall be terminated or otherwise cease to be in
effect for any reason, shall be unavailable or inadequate to cover any Liability
of any member of the  Lucent  Group for any  reason  whatsoever  or shall not be
renewed or extended beyond the current expiration date.

                  (b) As  promptly  as  practicable,  each  party  shall use its
reasonable  best efforts to consummate  the  transactions  set forth on Schedule
7.1(b) with respect to American Ridge and its Subsidiaries.

                  (c) (i) Except in the case of the Ridge  Lucent  Policies  and
except as otherwise provided in any Ancillary  Agreement,  the parties intend by
this  Agreement  that  Lucent  and each  other  member  of the  Lucent  Group be
successors-in-interest  to all rights  that any  member of the Lucent  Group may
have as of the Closing Date as a subsidiary,  affiliate,  division or department
of AT&T prior to the Closing Date under any policy of  insurance  issued to AT&T
by any insurance carrier  unaffiliated with AT&T or under any agreements related
to such policies executed and delivered prior to the Closing Date, including any
rights such  member of the Lucent  Group may have,  as an insured or  additional
named insured, subsidiary, affiliate, division or department, to avail itself of
any such policy of insurance or any such agreements  related to such policies as
in effect prior to the Closing Date.  At the request of Lucent,  AT&T shall take
all reasonable  steps,  including the execution and delivery of any instruments,
to effect the foregoing; provided however that AT&T


<PAGE>

shall not be required to pay any amounts, waive any rights or
incur any
Liabilities in connection therewith.

                  (ii)  Except  in the case of the  Ridge  Lucent  Policies  and
except as otherwise  contemplated by any Ancillary Agreement,  after the Closing
Date, none of AT&T or Lucent or any member of their respective
Groups  shall,
without the  consent of the other,  provide any such  insurance  carrier  with a
release,  or  amend,  modify  or waive  any  rights  under  any such  policy  or
agreement,  if such release,  amendment,  modification or waiver would adversely
affect  any  rights  or  potential  rights  of any  member  of the  other  Group
thereunder;  provided  however  that the  foregoing  shall not (A)  preclude any
member of any Group  from  presenting  any claim or from  exhausting  any policy
limit, (B) require any member of any Group to pay any premium or other amount or
to incur any Liability,  or (C) require any member of any Group to renew, extend
or  continue  any  policy in  force.  Each of Lucent  and AT&T will  share  such
information  as is  reasonably  necessary in order to permit the other to manage
and conduct its insurance matters in an orderly fashion.

                  (d) This  Agreement  shall not be  considered  as an attempted
assignment  of any policy of insurance  or as a contract of insurance  and shall
not be construed to waive any right or remedy of any member of the AT&T Group in
respect of any Insurance Policy or any other contract or policy of insurance.

                  (e) Lucent does  hereby,  for itself and each other  member of
the Lucent Group, their respective Affiliates (other than any member of the AT&T
Group),  successors  and  assigns,  and all  Persons  who at any time  have been
shareholders,  directors,  officers,  agents or  employees  of any member of the
Lucent Group (in each case, in their respective  capacities as such), agree that
all Ridge Lucent Policies will automatically be terminated in all respects as of
the Distribution Date (without any further action by any Person) and, as of such
date,  remise,  release and forever  discharge each AT&T Indemnitee and each NCR
Indemnitee  with respect  thereto.  Lucent agrees to indemnify,  defend and hold
harmless  each  member  of the AT&T  Group  and  each  AT&T  Indemnitee  and NCR
Indemnitee if any Person shall claim that it is entitled to any payment from any
of the foregoing in respect of any Ridge Lucent Policy.  At the request of AT&T,
Lucent will take,  or cause to be taken,  all action  necessary to terminate any
Ridge  Lucent  Policies  and all  Liabilities  of any  member of the AT&T  Group
thereunder, effective as of the Distribution Date.

                  (f) Lucent does  hereby,  for itself and each other  member of
the Lucent Group,  agree that no member of the AT&T Group or any AT&T Indemnitee
or NCR  Indemnitee  shall  have any  Liability  whatsoever  as a  result  of the
insurance  policies and practices of AT&T and its Affiliates as in effect at any
time prior to the Closing  Date,  including as a result of the level or scope of
any such insurance, the creditworthiness of any insurance carrier, the terms and
conditions  of any  policy,  the  adequacy  or  timeliness  of any notice to any
insurance carrier with respect to any claim or potential claim or otherwise.

                  (g) Nothing in this Agreement  shall be deemed to restrict any
member of the Lucent Group from acquiring at its own expense any other insurance
policy in respect of any Liabilities or covering any period.

                  7.2.   COLLECTION   OF   ACCOUNTS   RECEIVABLE.   (a)   Lucent
acknowledges  on behalf of itself and each other member of the Lucent Group that
it is aware that the Retained  Receivables  are Excluded Assets and that certain
Persons that are account debtors with respect to accounts  receivables  included
in the Lucent  Assets (or that in the future may otherwise  become  payable to a
member of the Lucent Group) are also account debtors with


<PAGE>

respect to the Retained Receivables.  Lucent agrees that from and after the date
hereof and prior to December 31, 1997, unless otherwise specifically directed by
AT&T,  Lucent,  as agent for AT&T, will take all  commercially  reasonable steps
consistent with the Lucent  Business's  current practices to service and collect
the  Retained  Receivables.  AT&T and Lucent  will  cooperate  to  establish  as
promptly as practicable mutually acceptable operational procedures. In addition,
Lucent will use all  reasonable  best efforts to satisfy any  conditions  to the
payment of any  Retained  Receivables  and to  fulfill  all  obligations  to the
applicable  account  debtors  related to such  Retained  Receivables;  provided,
however  that if,  in order to  collect  any  Retained  Receivables,  Lucent  is
required to engage a collection  agency or to institute legal proceedings or any
other  Action  it  shall  be  entitled  to  be  reimbursed  for  its  reasonable
out-of-pocket  costs  and  expenses  incurred  in  connection  therewith.  After
December 31, 1997,  the parties will negotiate in good faith with respect to the
final disposition of any then outstanding Retained Receivables.

                  (b) Any  payment  made by an  account  debtor to Lucent or any
member of the Lucent  Group  with  respect  to an  account  receivable  shall be
applied to the Retained  Receivables  (and paid over to AT&T in accordance  with
this  Section  7.2)  before  they are  applied to any other  account  receivable
whenever arising for such account debtor  (regardless of the respective dates of
such  accounts  receivable  or of any  specific  notation to the contrary by the
applicable account debtor),  unless the applicable account debtor specifies that
such payment shall be applied to another  account payable of such account debtor
that (i) arose from an order placed after the date of this Agreement and (ii) is
both due and paid prior to the first due date of any Retained  Receivable or any
other account receivable of such account debtor.

                  (c) Each of AT&T and  Lucent  shall  deliver to the other such
schedules and other information with respect to the Retained Receivables and the
accounts  receivables  included  in the Lucent  Assets as each shall  reasonably
request  from time to time in order to permit such  parties to  reconcile  their
respective  records and to monitor the  collection  of all  accounts  receivable
(whether Lucent Assets or Retained  Receivables).  Each of Lucent and AT&T shall
afford the other  reasonable  access to its books and  records  relating  to any
accounts receivable.  Without limiting the foregoing,  Lucent shall at all times
maintain  the  ability  to  provide  to AT&T  promptly  upon  request a true and
complete schedule of all Retained Receivables due and owing as of the end of the
prior month.

                  (d) By the  15th  day of each  month  (or if such day is not a
business day, by the next business day), Lucent hereby irrevocably agrees to pay
over, or cause to be paid over, in  immediately  available  funds to AT&T, at no
cost or charge to AT&T or any of its  Affiliates  (other  than any member of the
Lucent  Group),  any and all amounts which were received (or deemed  received in
accordance with Section  7.2(b)) during the  immediately  preceding month by any
member of the  Lucent  Group in respect of the  Retained  Receivables.  Any such
amounts  not paid over to AT&T by the date  specified  in the first  sentence of
this Section 7.2(d) shall bear interest at the Prime Rate plus 2% per annum.

                  (e) Nothing in this Agreement or any Ancillary Agreement shall
be  construed  to grant to any  member of the Lucent  Group any right,  title or
interest in any Retained Receivable and no member of the Lucent Group shall have
any right or power to, and no member of the Lucent Group shall,  grant or suffer
to exist  any  right of set off,  lien or any  other  Security  Interest  in any
Retained  Receivables  or proceeds  thereof.  Lucent  will not,  and it will not
permit any member of the Lucent Group to, extend or otherwise  change the amount
or other terms of payment of any Retained  Receivable,  unless Lucent shall have
paid to AT&T an amount  equal to the full  amount of such  Retained  Receivable.
Lucent


<PAGE>

hereby irrevocably and  unconditionally  agrees that it shall not assert (and it
shall not permit any member of the Lucent Group to assert) any offsets,  claims,
counterclaims  or  defenses  in  respect  of  the  Retained  Receivables  or its
obligations to pay over any such Retained Receivables to AT&T hereunder (whether
existing on the date hereof or arising  hereafter and whether or not relating to
the  transactions  contemplated  by this Agreement,  any Ancillary  Agreement or
otherwise).

                  (f) AT&T shall  retain the right to collect or seek to collect
in such manner as it may in its sole discretion  determine all or any portion of
the Retained Receivables.

                  (g) Lucent  hereby  represents  and warrants to AT&T that each
Retained  Receivable  constitutes a legal,  valid and binding  obligation of the
applicable account debtor enforceable  against such account debtor in accordance
with its respective terms,  except as the enforceability  thereof may be limited
by  bankruptcy,  insolvency,  moratorium  and other  similar laws  affecting the
enforcement of creditors' rights  generally,  and is not subject to any Security
Interest or any other lien, claim, defense or right of set-off.

                  (h) On or prior to February 15, 1996,  Lucent shall deliver to
AT&T a true and correct list of each of the Retained Receivables in such form as
AT&T shall reasonably  request.  Such list shall specify the face amount of each
Retained Receivable and a summary of the total Retained  Receivables,  including
the allocations  thereof among the Lucent business units, the applicable  credit
loss  reserve  thereon  and such  other  information  as AT&T  shall  reasonably
request.

                  7.3. OPERATING  FINANCIAL  LIABILITIES.  (a) As between Lucent
and AT&T, Lucent hereby irrevocably assumes and agrees to pay, perform,  satisfy
and discharge all liabilities, obligations,  contingencies and other Liabilities
under,  or otherwise  relating to, arising out of or resulting  from, all Lucent
OFL's.  For  purposes of this  Agreement,  the term "Lucent OFL" means the OFL's
listed or  described on Schedule  7.3(a) and any other OFL's that are  primarily
related  to,  arise out of or result  from any Lucent  Asset,  Lucent  Liability
(including  any  Lucent  Contract)  or Lucent  Business  or that were  otherwise
entered into in connection with the conduct of the Lucent Business.  The parties
hereto  acknowledge  that there may be OFL's that are Lucent  OFL's that are not
set forth or described on such Schedule  7.3(a),  either  because such OFL's are
entered  into  after the date  hereof or because  such OFL's were  inadvertently
excluded from such Schedule. As a result, the parties agree to cooperate in good
faith  to  supplement  Schedule  7.3(a)  as  any  additional  Lucent  OFL's  are
identified.  In the event that any OFL is so added to such Schedule 7.3(a), AT&T
will  retroactively  bill  Lucent in  accordance  with this  Section 7.3 for any
amount payable by any member of the AT&T Group on or after the date hereof,  and
AT&T will  retroactively  credit Lucent in accordance  with this Section 7.3 for
any amount  paid to any  member of the AT&T  Group on or after the date  hereof,
together in each case with  interest  thereon  from the date of payment by or to
any such member of the AT&T Group, as the case may be, to the date of settlement
of such bill or credit,  at the AT&T CP Rate that would have been  applicable if
such Lucent OFL had  originally  been  included on Schedule  7.3(a),  subject to
increase pursuant to Section 7.3(c)(ii).

                  (b) (i) AT&T  may,  from time to time,  set forth on  Schedule
7.3(a)  whether  any  Lucent  OFL's  are to be paid,  performed,  satisfied  and
discharged  directly by Lucent.  AT&T may at any time or from time to time on at
least 30 days' written notice to Lucent,  modify such Schedule  7.3(a) to change
whether  any Lucent  OFL shall  thereafter  be paid,  performed,  satisfied  and
discharged  directly  by Lucent or by AT&T.  AT&T  shall,  in the absence of any
default by Lucent under this Section 7.3, pay, or cause to be paid, all other


<PAGE>

Lucent  OFL's,  and  Lucent  agrees  to  reimburse  AT&T  for such  payments  in
accordance with the terms of this Section 7.3. If Lucent is in default of any of
its obligations under this Section 7.3, AT&T shall no longer be required to pay,
or cause to be paid,  any Lucent OFL's and Lucent shall be required  directly to
pay, perform, satisfy and discharge such Lucent OFL's.

                  (ii) In the  event  that  payments  are made by a third  party
under any Lucent  OFL,  if Lucent is not in  default  of any of its  obligations
under this  Section  7.3,  (A) if any such  payment is made to any member of the
Lucent  Group,  such  member of the Lucent  Group will be entitled to retain any
such payments  received by it, and (B) if any such payment is made to any member
of the AT&T Group,  such  member of the AT&T Group  shall,  at AT&T's  election,
either remit any such amounts it receives to Lucent or net such amounts  against
payments  AT&T is then  required  to make under any other  Lucent OFL or against
payments then owed (whether or not then due) to AT&T by Lucent hereunder.

                  (iii) In the event  that  payments  are made by a third  party
under any Lucent  OFL, if Lucent is in default of any of its  obligations  under
this  Section  7.3,  (A) if any such payment is made to any member of the Lucent
Group,  Lucent shall  promptly  remit any such payments to AT&T,  and (B) if any
such  payment is made to any member of the AT&T  Group,  AT&T shall be  entitled
(but not  required)  to apply any such  payments to satisfy,  any such breach by
Lucent,  either,  at AT&T's option, by netting amounts then owed (whether or not
then due) to AT&T by Lucent  hereunder or by paying over such monies in order to
satisfy any obligation in respect of any Lucent OFL.

                  (iv) In the event that  payment or receipt of  commodities  or
other  property is called for under any Lucent OFL,  the parties  will  mutually
agree upon  reasonable  then  current  market-based  valuations  to convert such
payment or receipt into dollars,  unless  Lucent  determines to make delivery or
take receipt under the Lucent OFL in commodities or property.

                  (c)  (i)  AT&T  shall  issue a  statement  to  Lucent  for the
payments  due from or payable to Lucent  pursuant to this Section 7.3 in respect
of any  month by the  tenth  business  day of the  following  month.  Each  such
statement shall set forth the AT&T CP Rate for the immediately  preceding month.
Interest  will accrue and be payable by Lucent on all  amounts  due  pursuant to
this  Section  7.3 in respect of Lucent  OFL's at the AT&T CP Rate in effect for
the month immediately  preceding the month in which the statement is issued from
the date of payment of any such amount by any member of the AT&T Group under any
Lucent  OFL to the date of  payment  therefor  to AT&T by  Lucent.  In the event
payments  are due by AT&T to  Lucent  under  this  Section  7.3,  AT&T  will pay
interest at the AT&T CP Rate in effect for the month  immediately  preceding the
month in which the statement is issued from the date of receipt by AT&T under an
Lucent OFL to the date of payment by AT&T.  All payments  under this Section 7.3
shall be in same day funds.

                  (ii) Lucent  agrees to pay AT&T any amounts due  (including in
respect of  interest)  within 10 days of receipt  of each  statement.  AT&T will
remit to Lucent any payments  (including in respect of interest) received by any
member of the AT&T  Group  under any  Lucent  OFL (to the  extent  not netted in
accordance  with Section  7.3(b))  within 10 days of the date of statement.  Any
amounts  not paid when due shall  bear  interest  at the Prime  Rate plus 2% per
annum in lieu of the AT&T CP Rate.

                  (d) (i) Lucent may prepay (or effect the early termination) of
any Lucent OFL's  provided that no additional  Liability is thereby  created for
any member of the AT&T


<PAGE>

Group other than any  Liabilities  that are fully  discharged  and  satisfied by
Lucent simultaneously with such prepayment or early termination.

                  (ii) Without  AT&T's  written  consent,  Lucent will not enter
into or permit any  amendment,  modification  or waiver of any  provision of any
Lucent  OFL;  provided  that  AT&T  agrees  that it  will  consent  to any  such
amendments,  modifications or waivers that do not create additional  obligations
or Liabilities  for any member of the AT&T Group or otherwise  adversely  affect
any member of the AT&T Group.

                  (iii) Each party will give prompt notice to the other party of
any default by it or, if it becomes aware thereof,  by any third party under any
Lucent OFL.

                  (iv) In the event that Lucent  makes any payment in respect of
an Lucent OFL,  Lucent will be subrogated to all rights of AT&T or any member of
the AT&T Group with  respect  to such  Lucent  OFL,  including  with  respect to
collateral, to the extent of such payment.

                  7.4.  CERTAIN  BUSINESS  MATTERS.  (a) No  member of any Group
shall  have  any  duty to  refrain  from (i)  engaging  in the  same or  similar
activities  or lines of  business as any member of any other  Group,  (ii) doing
business with any potential or actual  supplier or customer of any member of any
other Group,  or (iii)  engaging in, or refraining  from,  any other  activities
whatsoever  relating to any of the potential or actual suppliers or customers of
any member of any other Group.

                  (b) Each of AT&T,  Lucent  and NCR is aware  that from time to
time certain business  opportunities  may arise which more than one Group may be
financially able to undertake,  and which are, from their nature, in the line of
more than one Group's  business and are of practical  advantage to more than one
Group.  In  connection  therewith,  the parties  agree that if prior to (but not
following) the Distribution  Date, any of AT&T, Lucent or NCR acquires knowledge
of an  opportunity  that meets the foregoing  standard with respect to more than
one Group,  none of AT&T,  Lucent or NCR shall have any duty to  communicate  or
offer such  opportunity  to any of the  others  and may  pursue or acquire  such
opportunity for itself,  or direct such opportunity to any other Person,  unless
(i) such opportunity relates primarily to the AT&T Services Business, the Lucent
Business or the NCR Business, in which case the party that acquires knowledge of
such opportunity  shall use its reasonable best efforts to communicate and offer
such opportunity to AT&T, Lucent or NCR, respectively,  or (ii) such opportunity
relates  both to the AT&T  Services  Business  and the Lucent  Business  but not
primarily to either one, in which case such party shall use its reasonable  best
efforts to communicate and offer such opportunity to Lucent. Notwithstanding the
foregoing,  no party  shall be  required  to so  communicate  or offer  any such
opportunity  if it would  result in the breach of any  contract or  agreement or
violate any applicable law, rule or regulation of any Governmental Authority, no
party shall have any  obligation  to finance  (or  provide any other  assistance
whatsoever) to any other party in connection with any such  opportunity.  In the
event the foregoing clause (i) or (ii) is applicable,  no party,  other than the
party to whom the  opportunity  must be offered in accordance with such clauses,
shall pursue or acquire such opportunity for itself,  or direct such opportunity
to any other Person,  unless the party to whom the opportunity is required to be
offered does not within a reasonable period of time begin to pursue, or does not
thereafter continue to pursue, such opportunity diligently and in good faith.

                  7.5. LATE PAYMENTS. Except as expressly provided
to the
contrary in this Agreement or in any Ancillary Agreement, any
amount not paid
when due pursuant to this


<PAGE>

Agreement  or any  Ancillary  Agreement  (and any  amounts  billed or  otherwise
invoiced or demanded  and  properly  payable that are not paid within 30 days of
such bill,  invoice or other demand)  shall accrue  interest at a rate per annum
equal to the Prime Rate plus 2%.

                  7.6. TRANSITIONAL BELL LABS SERVICES.  Prior to, on, and after
the Closing Date, AT&T and each member of the AT&T Group,  shall have the right,
to obtain from Lucent or any member of the Lucent  Group,  the  Identified  Bell
Labs  Services,  and such  other  services  that are  provided  by  Lucent  Bell
Laboratories that AT&T may from time to time reasonably  determine are necessary
to assure a smooth and orderly  transition of the businesses,  in each case on a
commercially  reasonable  basis.  Each of the parties shall use their reasonable
best efforts to identify and document any such  additional  services on or prior
to the Closing Date; provided,  however, that whether or not identified prior to
the Closing Date,  prior to, on, and after the Closing Date,  each member of the
AT&T  Group  shall  continue  to have the  right to  obtain  such  services,  on
commercially reasonable terms, as contemplated by this Section 7.6.

                                  ARTICLE VIII
                    EXCHANGE OF INFORMATION; CONFIDENTIALITY

                  8.1. AGREEMENT FOR EXCHANGE OF INFORMATION; ARCHIVES. (a) Each
of AT&T, Lucent and NCR, on behalf of its respective  Group,  agrees to provide,
or cause to be provided,  to each other  Group,  at any time before or after the
Distribution  Date, as soon as  reasonably  practicable  after  written  request
therefor,  any  Information  in the  possession  or under  the  control  of such
respective  Group which the requesting party reasonably needs (i) to comply with
reporting,  disclosure,  filing or other requirements  imposed on the requesting
party  (including  under  applicable  securities or tax laws) by a  Governmental
Authority having  jurisdiction  over the requesting  party,  (ii) for use in any
other judicial, regulatory,  administrative, tax or other proceeding or in order
to satisfy  audit,  accounting,  claims,  regulatory,  litigation,  tax or other
similar  requirements,  or  (iii) to  comply  with its  obligations  under  this
Agreement, any Ancillary Agreement or any Lucent OFL; provided, however, that in
the event that any party determines that any such provision of Information could
be  commercially  detrimental,  violate  any  law or  agreement,  or  waive  any
attorney-client  privilege,  the parties shall take all  reasonable  measures to
permit the  compliance  with such  obligations  in a manner that avoids any such
harm or consequence.

                  (b) After the Closing  Date,  Lucent shall have access  during
regular  business  hours (as in effect from time to time) to the  documents  and
objects of historic  significance  that relate to the Lucent  Business  that are
located in the AT&T Archives  located at 5 Reineman  Road,  Warren,  New Jersey.
Lucent may obtain copies (but not originals) of documents for bona fide business
purposes  and may  obtain  objects  for  exhibition  purposes  for  commercially
reasonable periods of time if required for bona fide business purposes, provided
that  Lucent  shall cause any such  objects to be returned  promptly in the same
condition  in which they were  delivered  to Lucent and Lucent shall comply with
any  rules,  procedures  or other  requirements,  and  shall be  subject  to any
restrictions  (including prohibitions on removal of specified objects), that are
then  applicable to AT&T.  Lucent shall pay $125 per hour for archives  research
services  (subject to increase from time to time to reflect rates then in effect
for AT&T  generally).  Nothing  herein shall be deemed to restrict the access of
any member of the AT&T Group or the NCR Group to any such  documents  or objects
or to impose any liability on any member of the AT&T Group if any such documents
or objects are not maintained or preserved by AT&T.


<PAGE>

                  (c) After the date hereof, (i) Lucent shall maintain in effect
at its own  cost  and  expense  adequate  systems  and  controls  to the  extent
necessary  to enable the members of the AT&T Group to satisfy  their  respective
reporting,  accounting,  audit  and other  obligations,  and (ii)  Lucent  shall
provide, or cause to be provided, to AT&T in such form as AT&T shall request, at
no  charge  to AT&T,  all  financial  and  other  data and  information  as AT&T
determines  necessary or advisable in order to prepare AT&T financial statements
and reports or filings with any Governmental Authority.

                  8.2.  OWNERSHIP OF INFORMATION.  Any Information  owned by one
Group that is provided to a  requesting  party  pursuant to Section 8.1 shall be
deemed to remain the property of the providing  party.  Unless  specifically set
forth herein, nothing contained in this Agreement shall be construed as granting
or conferring rights of license or otherwise in any such Information.

                  8.3.  COMPENSATION  FOR  PROVIDING   INFORMATION.   The  party
requesting  such  Information  agrees  to  reimburse  the  other  party  for the
reasonable  costs, if any, of creating,  gathering and copying such Information,
to the extent that such costs are  incurred  for the  benefit of the  requesting
party.  Except  as may be  otherwise  specifically  provided  elsewhere  in this
Agreement or in any other  agreement  between the  parties,  such costs shall be
computed in  accordance  with the providing  party's  standard  methodology  and
procedures.

                  8.4. RECORD RETENTION.  To facilitate the possible exchange of
Information pursuant to this Article VIII and other provisions of this Agreement
after the  Distribution  Date,  the parties agree to use their  reasonable  best
efforts to retain all Information in their  respective  possession or control on
the  Distribution  Date in accordance  with the policies of AT&T as in effect on
the Closing Date. No party will destroy,  or permit any of its  Subsidiaries  to
destroy,  any  Information  which the  other  party may have the right to obtain
pursuant to this  Agreement  prior to the third  anniversary  of the date hereof
without first using its reasonable best efforts to notify the other party of the
proposed  destruction  and  giving  the  other  party  the  opportunity  to take
possession of such information  prior to such  destruction;  provided,  however,
that in the  case of any  Information  relating  to  Taxes  or to  Environmental
Liabilities,  such period shall be extended to the  expiration of the applicable
statute of limitations (giving effect to any extensions thereof).

                  8.5.  LIMITATION  OF  LIABILITY.   No  party  shall  have  any
liability  to any other  party in the event that any  Information  exchanged  or
provided  pursuant to this Agreement which is an estimate or forecast,  or which
is based on an estimate or forecast,  is found to be inaccurate,  in the absence
of willful  misconduct by the party providing such  Information.  No party shall
have any  liability to any other party if any  Information  is  destroyed  after
reasonable  best efforts by such party to comply with the  provisions of Section
8.4.

                  8.6. OTHER  AGREEMENTS  PROVIDING FOR EXCHANGE OF INFORMATION.
The rights and  obligations  granted  under this Article VIII are subject to any
specific  limitations,  qualifications or additional  provisions on the sharing,
exchange or  confidential  treatment of  Information  set forth in any Ancillary
Agreement.

                  8.7. PRODUCTION OF WITNESSES;  RECORDS; COOPERATION. (a) After
the  Closing  Date,  except  in the case of an  adversarial  Action by one party
against another party (which shall be governed by such discovery rules as may be
applicable  under  Article IX or  otherwise),  each party  hereto  shall use its
reasonable  best efforts to make  available  to each other  party,  upon written
request, the former, current and future directors,  officers,  employees,  other
personnel and agents of the members of its respective Group as witnesses and


<PAGE>

any books,  records or other documents  within its control or which it otherwise
has the ability to make  available,  to the extent that any such person  (giving
consideration to business demands of such directors,  officers, employees, other
personnel and agents) or books,  records or other  documents  may  reasonably be
required in connection  with any Action in which the  requesting  party may from
time to time be  involved,  regardless  of whether  such Action is a matter with
respect to which  indemnification may be sought hereunder.  The requesting party
shall bear all costs and expenses (including allocated costs of in-house counsel
and other personnel) in connection therewith.

                  (b) If an  Indemnifying  Party or AT&T chooses to defend or to
seek to compromise  or settle any Third Party Claim,  or if any party chooses to
prosecute or otherwise evaluate or to pursue any Contingent Gain or any recovery
in respect of any RBOC Agreement, the other parties shall make available to such
Indemnifying  Party,  AT&T or such other party, as the case may be, upon written
request, the former, current and future directors,  officers,  employees,  other
personnel and agents of the members of its respective Group as witnesses and any
books,  records or other documents  within its control or which it otherwise has
the  ability to make  available,  to the  extent  that any such  person  (giving
consideration to business demands of such directors,  officers, employees, other
personnel and agents) or books,  records or other  documents  may  reasonably be
required in connection  with such defense,  settlement  or  compromise,  or such
prosecution,  evaluation  or  pursuit,  as the case may be, and shall  otherwise
cooperate  in such  defense,  settlement  or  compromise,  or such  prosecution,
evaluation or pursuit, as the case may be.

                  (c)  Without   limiting  the  foregoing,   the  parties  shall
cooperate  and consult to the extent  reasonably  necessary  with respect to any
Actions, Contingent Liabilities and Contingent Gains.

                  (d) Without  limiting any provision of this  Section,  each of
the parties  agrees to  cooperate,  and to cause each  member of its  respective
Group to  cooperate,  with each  other in the  defense  of any  infringement  or
similar  claim with  respect any  intellectual  property  and shall not claim to
acknowledge,  or  permit  any  member  of  its  respective  Group  to  claim  to
acknowledge,  the validity or infringing use of any  intellectual  property of a
third  Person in a manner  that would  hamper or  undermine  the defense of such
infringement or similar claim.

                  (e)  The  obligation  of  the  parties  to  provide  witnesses
pursuant to this Section 8.7 is intended to be  interpreted in a manner so as to
facilitate  cooperation and shall include the obligation to provide as witnesses
inventors  and other  officers  without  regard to  whether  the  witness or the
employer of the witness could assert a possible  business  conflict  (subject to
the exception set forth in the first sentence of Section 8.7(a)).

                  (f) In connection with any matter contemplated by this Section
8.7, the parties will enter into a mutually  acceptable joint defense  agreement
so as to  maintain  to the extent  practicable  any  applicable  attorney-client
privilege or work product immunity of any member of any Group.

                  8.8.  CONFIDENTIALITY.  (a)  Subject to Section  8.9,  each of
AT&T,  Lucent  and NCR,  on behalf of itself and each  member of its  respective
Group,  agrees  to  hold,  and to  cause  its  respective  directors,  officers,
employees,  agents, accountants,  counsel and other advisors and representatives
to hold,  in  strict  confidence,  with at least  the same  degree  of care that
applies to AT&T's confidential and proprietary  information pursuant to policies
in effect as of the Closing Date,  all  Information  concerning  each such other
Group that is


<PAGE>

either in its possession  (including  Information in its possession prior to any
of the date hereof,  the Closing Date or the Distribution  Date) or furnished by
any such other Group or its respective directors,  officers,  employees, agents,
accountants, counsel and other advisors and representatives at any time pursuant
to this Agreement,  any Ancillary Agreement or otherwise,  and shall not use any
such  Information  other than for such purposes as shall be expressly  permitted
hereunder  or  thereunder,  except,  in  each  case,  to the  extent  that  such
Information  has been (i) in the public domain through no fault of such party or
any  member  of such  Group  or any of  their  respective  directors,  officers,
employees, agents, accountants,  counsel and other advisors and representatives,
(ii) later lawfully  acquired from other sources by such party (or any member of
such party's Group) which sources are not themselves bound by a  confidentiality
obligation),   or  (iii)  independently   generated  without  reference  to  any
proprietary or confidential Information of the other party.

                  (b) Each party agrees not to release or disclose, or permit to
be released or disclosed,  any such Information to any other Person,  except its
directors, officers, employees, agents, accountants,  counsel and other advisors
and  representatives  who need to know such Information (who shall be advised of
their  obligations  hereunder  with  respect  to such  Information),  except  in
compliance  with  Section  8.9.  Without   limiting  the  foregoing,   when  any
Information is no longer needed for the purposes  contemplated by this Agreement
or any Ancillary Agreement,  each party will promptly after request of the other
party  either  return to the other  party all  Information  in a  tangible  form
(including  all  copies  thereof  and all notes,  extracts  or  summaries  based
thereon) or certify to the other party that it has  destroyed  such  Information
(and such copies thereof and such notes, extracts or summaries based thereon).

                  8.9. PROTECTIVE  ARRANGEMENTS.  In the event that any party or
any member of its Group either  determines  on the advice of its counsel that it
is required to disclose any  Information  pursuant to applicable law or receives
any demand under lawful process or from any  Governmental  Authority to disclose
or provide  Information  of any other party (or any member of any other  party's
Group)  that is subject to the  confidentiality  provisions  hereof,  such party
shall notify the other party prior to disclosing or providing  such  Information
and shall  cooperate  at the  expense of the  requesting  party in  seeking  any
reasonable protective arrangements requested by such other party. Subject to the
foregoing,  the Person that  received  such request may  thereafter  disclose or
provide  Information  to the  extent  required  by such  law (as so  advised  by
counsel) or by lawful process or such Governmental Authority.

                                   ARTICLE IX
                         ARBITRATION; DISPUTE RESOLUTION

                  9.1. AGREEMENT TO ARBITRATE.  Except as otherwise specifically
provided in any Ancillary Agreement, the procedures for discussion,  negotiation
and  arbitration  set  forth in this  Article  IX shall  apply to all  disputes,
controversies or claims (whether  sounding in contract,  tort or otherwise) that
may  arise  out of or  relate  to,  or arise  under or in  connection  with this
Agreement or any Ancillary Agreement, or the transactions contemplated hereby or
thereby  (including  all  actions  taken  in  furtherance  of  the  transactions
contemplated  hereby  or  thereby  on or  prior  to  the  date  hereof),  or the
commercial or economic  relationship of the parties  relating hereto or thereto,
between or among any member of the AT&T Services Group, the Lucent Group and the
NCR  Group.  Each  party  agrees  on behalf  of  itself  and each  member of its
respective Group that the procedures set forth in this


<PAGE>

Article  IX shall  be the  sole and  exclusive  remedy  in  connection  with any
dispute,  controversy  or claim  relating  to any of the  foregoing  matters and
irrevocably   waives  any  right  to  commence  any  Action  in  or  before  any
Governmental Authority,  except as expressly provided in Sections 9.7(b) and 9.8
and  except to the  extent  provided  under the  Arbitration  Act in the case of
judicial review of arbitration results or awards. Each party on behalf of itself
and each  member of its  respective  Group  irrevocably  waives any right to any
trial by jury with respect to any claim, controversy or dispute set forth in the
first sentence of this Section 9.1.

                  9.2.  ESCALATION.  (a) It is the intent of the  parties to use
their respective  reasonable best efforts to resolve  expeditiously any dispute,
controversy  or claim between or among them with respect to the matters  covered
hereby  that may arise  from time to time on a  mutually  acceptable  negotiated
basis.  In  furtherance  of the  foregoing,  any party  involved  in a  dispute,
controversy or claim may deliver a notice (an "Escalation  Notice") demanding an
in person meeting involving  representatives of the parties at a senior level of
management of the parties (or if the parties agree, of the appropriate strategic
business  unit or division  within such entity).  A copy of any such  Escalation
Notice shall be given to the General  Counsel,  or like officer or official,  of
each party involved in the dispute, controversy or claim (which copy shall state
that it is an  Escalation  Notice  pursuant  to  this  Agreement).  Any  agenda,
location or procedures for such discussions or negotiations  between the parties
may be established by the parties from time to time; provided, however, that the
parties  shall use their  reasonable  best efforts to meet within 30 days of the
Escalation Notice.

                  (b) The parties may, by mutual  consent,  retain a mediator to
aid the parties in their  discussions and  negotiations by informally  providing
advice to the parties.  Any opinion  expressed by the mediator shall be strictly
advisory  and shall  not be  binding  on the  parties,  nor  shall  any  opinion
expressed by the mediator be  admissible  in any  arbitration  proceedings.  The
mediator  may be chosen  from a list of  mediators  previously  selected  by the
parties or by other  agreement of the parties.  Costs of the mediation  shall be
borne  equally by the parties  involved  in the  matter,  except that each party
shall be responsible for its own expenses.  Mediation is not a prerequisite to a
demand for arbitration under Section 9.3.


                  9.3. DEMAND FOR  ARBITRATION.  (a) At any time after the first
to occur of (i) the date of the meeting actually held pursuant to the applicable
Escalation Notice or (ii) 45 days after the delivery of an Escalation Notice (as
applicable,  the "Arbitration  Demand Date"), any party involved in the dispute,
controversy or claim  (regardless of whether such party delivered the Escalation
Notice) may, unless the Applicable Deadline has occurred,  make a written demand
(the  "Arbitration  Demand  Notice")  that the  dispute be  resolved  by binding
arbitration,  which  Arbitration  Demand Notice shall be given to the parties to
the dispute,  controversy  or claim in the manner set forth in Section  12.5. In
the event that any party shall deliver an  Arbitration  Demand Notice to another
party, such other party may itself deliver an Arbitration  Demand Notice to such
first  party with  respect to any  related  dispute,  controversy  or claim with
respect to which the Applicable  Deadline has not passed without the requirement
of  delivering  an  Escalation  Notice.  No party may assert that the failure to
resolve any matter during any discussions or negotiations, the course of conduct
during the  discussions  or  negotiations  or the failure to agree on a mutually
acceptable time, agenda,  location or procedures for the meeting,  in each case,
as  contemplated  by Section 9.2, is a prerequisite  to a demand for arbitration
under Section 9.3. In the event that any party  delivers an  Arbitration  Demand
Notice with respect to any dispute, controversy or


<PAGE>

claim that is the subject of any then  pending  arbitration  proceeding  or of a
previously delivered Arbitration Demand Notice, all such disputes, controversies
and  claims  shall  be  resolved  in the  arbitration  proceeding  for  which an
Arbitration  Demand Notice was first  delivered  unless the arbitrator in his or
her sole discretion determines that it is impracticable or otherwise inadvisable
to do so.


                  (b)  Except  as may be  expressly  provided  in any  Ancillary
Agreement, any Arbitration Demand Notice may be given until one year and 45 days
after  the  later  of the  occurrence  of the act or  event  giving  rise to the
underlying  claim or the date on which  such act or event  was,  or should  have
been,  in the exercise of  reasonable  due  diligence,  discovered  by the party
asserting  the  claim  (as  applicable  and as it may in a  particular  case  be
specifically extended by the parties in writing, the "Applicable Deadline"). Any
discussions,  negotiations  or mediations  between the parties  pursuant to this
Agreement or otherwise will not toll the Applicable  Deadline  unless  expressly
agreed in writing by the parties. Each of the parties agrees on behalf of itself
and each member of its Group that if an  Arbitration  Demand Notice with respect
to a dispute,  controversy  or claim is not given prior to the expiration of the
Applicable  Deadline,  as between or among the  parties and the members of their
Groups, such dispute,  controversy or claim will be barred.  Subject to Sections
9.7(d) and 9.8,  upon  delivery  of an  Arbitration  Demand  Notice  pursuant to
Section 9.3(a) prior to the  Applicable  Deadline,  the dispute,  controversy or
claim shall be decided by a sole  arbitrator  in  accordance  with the rules set
forth in this Article IX.

                  9.4. ARBITRATORS. (a) Within 15 days after a
valid Arbitration
Demand Notice is given, the parties involved in the dispute,
controversy or
claim referenced therein shall attempt to select a sole arbitrator
satisfactory
to all such parties.


                  (b) In the event  that such  parties  are not able  jointly to
select a sole  arbitrator  within such 15-day  period,  such parties  shall each
appoint an arbitrator  (who need not be  disinterested  as to the parties or the
matter) within 30 days after delivery of the Arbitration  Demand Notice.  If one
party  appoints  an  arbitrator  within  such time period and the other party or
parties fail to appoint an arbitrator  within such time period,  the  arbitrator
appointed by the one party shall be the sole arbitrator of the matter.


                  (c)  In the  event  that a  sole  arbitrator  is not  selected
pursuant to paragraph (a) or (b) above and,  instead,  two or three  arbitrators
are selected pursuant to paragraph (b) above, the two or three arbitrators will,
within 30 days  after  the  appointment  of the  later of them to be  appointed,
select an  additional  arbitrator  who shall act as the sole  arbitrator  of the
dispute. After selection of such sole arbitrator,  the initial arbitrators shall
have no  further  role  with  respect  to the  dispute.  In the  event  that the
arbitrators  so appointed do not,  within 30 days after the  appointment  of the
later of them to be appointed,  agree on the  selection of the sole  arbitrator,
any party  involved  in such  dispute  may apply to CPR,  New York,  New York to
select the sole arbitrator,  which selection shall be made by such  organization
within 30 days after such application.  Any arbitrator selected pursuant to this
paragraph (c) shall be disinterested  with respect to any of the parties and the
matter and shall be reasonably competent in the applicable subject matter.

                  (d) The sole  arbitrator  selected  pursuant to paragraph (a),
(b) or (c)  above  will set a time for the  hearing  of the  matter  which  will
commence  no  later  than 90 days  after  the  date of  appointment  of the sole
arbitrator pursuant to paragraph (a), (b) or (c) above and which hearing will be
no longer than 30 days (unless in the judgment of the  arbitrator  the matter is
unusually complex and sophisticated and thereby requires a longer time, in which
event such hearing shall be no longer than 90 days). The final decision of


<PAGE>

such  arbitrator  will be  rendered  in writing to the parties not later than 60
days after the last  hearing  date,  unless  otherwise  agreed by the parties in
writing.

                  (e) The place of any  arbitration  hereunder will be New York,
New York, unless otherwise agreed by the parties.


                  9.5.  HEARINGS.  Within the time period  specified  in Section
9.4(d), the matter shall be presented to the arbitrator at a hearing by means of
written  submissions  of  memoranda  and  verified  witness  statements,   filed
simultaneously, and responses, if necessary in the judgment of the arbitrator or
both  the  parties.  If  the  arbitrator  deems  it to be  essential  to a  fair
resolution of the dispute,  live  cross-examination or direct examination may be
permitted,  but is not generally  contemplated  to be necessary.  The arbitrator
shall actively  manage the arbitration  with a view to achieving a just,  speedy
and  cost-effective  resolution  of  the  dispute,  claim  or  controversy.  The
arbitrator  may,  in his or her  discretion,  set time and  other  limits on the
presentation  of each party's  case,  its  memoranda or other  submissions,  and
refuse to receive any proffered  evidence,  which the arbitrator,  in his or her
discretion, finds to be cumulative,  unnecessary, irrelevant or of low probative
nature.  Except as otherwise set forth herein, any arbitration hereunder will be
conducted in accordance with the CPR Rules for  Non-Administered  Arbitration of
Business Disputes then prevailing  (except that the fee schedule of CPR will not
apply).  Except as expressly  set forth in Section  9.8(b),  the decision of the
arbitrator will be final and binding on the parties, and judgment thereon may be
had and will be enforceable in any court having  jurisdiction  over the parties.
Arbitration  awards will bear  interest at an annual rate of the Prime Rate plus
2% per annum.  To the  extent  that the  provisions  of this  Agreement  and the
prevailing  rules of the CPR conflict,  the provisions of this  Agreement  shall
govern.



                  9.6.  DISCOVERY  AND  CERTAIN  OTHER  MATTERS.  (a) Any  party
involved in the applicable dispute may request limited document  production from
the other party or parties of specific and expressly  relevant  documents,  with
the reasonable  expenses of the producing party incurred in such production paid
by the requesting  party. Any such discovery (which rights to documents shall be
substantially  less than document  discovery rights prevailing under the Federal
Rules of Civil Procedure) shall be conducted  expeditiously  and shall not cause
the hearing  provided for in Section 9.5 to be adjourned  except upon consent of
all parties involved in the applicable dispute or upon an extraordinary  showing
of cause  demonstrating  that such  adjournment is necessary to permit discovery
essential to a party to the proceeding.  Depositions,  interrogatories  or other
forms of discovery  (other than the document  production  set forth above) shall
not occur except by consent of the parties  involved in the applicable  dispute.
Disputes  concerning  the scope of document  production  and  enforcement of the
document  production  requests will be  determined  by written  agreement of the
parties involved in the applicable  dispute or, failing such agreement,  will be
referred to the  arbitrator  for  resolution.  All  discovery  requests  will be
subject to the parties' rights to claim any applicable privilege. The arbitrator
will adopt  procedures to protect the  proprietary  rights of the parties and to
maintain the confidential  treatment of the arbitration  proceedings  (except as
may be required by law). Subject to the foregoing, the arbitrator shall have the
power to issue  subpoenas to compel the production of documents  relevant to the
dispute, controversy or claim.


                  (b) The  arbitrator  shall  have full power and  authority  to
determine issues of arbitrability but shall otherwise be limited to interpreting
or  construing  the  applicable  provisions  of this  Agreement or any Ancillary
Agreement,  and will have no authority or power to limit, expand,  alter, amend,
modify,  revoke or suspend any  condition or provision of this  Agreement or any
Ancillary Agreement; it being understood, however, that the arbitrator


<PAGE>

will have full  authority to implement the  provisions of this  Agreement or any
Ancillary  Agreement,  and to fashion appropriate  remedies for breaches of this
Agreement (including interim or permanent injunctive relief);  provided that the
arbitrator  shall not have (i) any  authority in excess of the authority a court
having  jurisdiction  over the parties and the controversy or dispute would have
absent these arbitration provisions or (ii) any right or power to award punitive
or treble  damages.  It is the  intention  of the  parties  that in  rendering a
decision  the  arbitrator  give  effect  to the  applicable  provisions  of this
Agreement  and the  Ancillary  Agreements  and follow  applicable  law (it being
understood  and  agreed  that  this  sentence  shall not give rise to a right of
judicial review of the arbitrator's award).

                  (c) If a party  fails or refuses to appear at and  participate
in an  arbitration  hearing  after  due  notice,  the  arbitrator  may  hear and
determine the controversy upon evidence produced by the appearing party.

                  (d)  Arbitration  costs  will be borne  equally  by each party
involved in the matter,  except that each party will be responsible  for its own
attorney's  fees and other costs and expenses,  including the costs of witnesses
selected by such party.

                  9.7. CERTAIN  ADDITIONAL  MATTERS.  (a) Any arbitration  award
shall be a bare award  limited to a holding  for or against a party and shall be
without  findings as to facts,  issues or  conclusions  of law  (including  with
respect to any matters  relating to the validity or  infringement  of patents or
patent  applications) and shall be without a statement of the reasoning on which
the award rests,  but must be in adequate form so that a judgment of a court may
be entered  thereupon.  Judgment  upon any  arbitration  award  hereunder may be
entered in any court having jurisdiction thereof.

                  (b)  Prior to the time at which  an  arbitrator  is  appointed
pursuant to Section  9.4, any party may seek one or more  temporary  restraining
orders in a court of  competent  jurisdiction  if necessary in order to preserve
and protect the status quo.  Neither the request for, or grant or denial of, any
such temporary  restraining  order shall be deemed a waiver of the obligation to
arbitrate  as set forth  herein and the  arbitrator  may  dissolve,  continue or
modify any such order.  Any such  temporary  restraining  order shall  remain in
effect  until the first to occur of the  expiration  of the order in  accordance
with its terms or the dissolution thereof by the arbitrator.

                  (c) Except as required by law,  the  parties  shall hold,  and
shall cause their respective officers,  directors,  employees,  agents and other
representatives  to hold,  the  existence,  content and result of  mediation  or
arbitration in confidence in accordance  with the provisions of Article VIII and
except as may be  required  in order to enforce  any award.  Each of the parties
shall request that any mediator or arbitrator  comply with such  confidentiality
requirement.

                  (d) In the event  that at any time the sole  arbitrator  shall
fail to serve as an  arbitrator  for any reason,  the parties shall select a new
arbitrator  who  shall be  disinterested  as to the  parties  and the  matter in
accordance with the procedures set forth herein for the selection of the initial
arbitrator.  The extent,  if any, to which testimony  previously  given shall be
repeated  or as to  which  the  replacement  arbitrator  elects  to  rely on the
stenographic  record (if there is one) of such testimony  shall be determined by
the replacement arbitrator.


                  9.8. LIMITED COURT ACTIONS. (a) Notwithstanding
anything
herein to the contrary, in the event that any party reasonably
determines the
amount in controversy in any dispute, controversy or claim (or any
series of
related disputes, controversies or claims)


<PAGE>

under this Agreement or any Ancillary  Agreement is, or is reasonably  likely to
be, in excess of $100 million and if such party desires to commence an Action in
lieu of complying with the  arbitration  provisions of this Article,  such party
shall so state in its Arbitration  Demand Notice or by notice given to the other
parties  within 20 days  after  receipt of an  Arbitration  Demand  Notice  with
respect  thereto.  If the other parties to the arbitration do not agree that the
amount in controversy  in such dispute,  controversy or claim (or such series of
related disputes, controversies or claims) is, or is reasonably likely to be, in
excess of $100 million,  the arbitrator  selected pursuant to Section 9.4 hereof
shall decide whether the amount in  controversy in such dispute,  controversy or
claim (or such series of related  disputes,  controversies  or claims) is, or is
reasonably  likely to be, in excess of $100 million.  The arbitrator shall set a
date that is no later than ten days after the date of his or her appointment for
submissions  by the parties with  respect to such issue.  There shall not be any
discovery in connection with such issue.  The arbitrator shall render his or her
decision on such issue  within five days of such date so set by the  arbitrator.
In the event that the  arbitrator  determines  that the amount in controversy in
such  dispute,  controversy  or  claim  (or such  series  of  related  disputes,
controversies  or  claims)  is or is  reasonably  likely to be in excess of $100
million,  the  provisions  of Sections  9.4(d) and (e),  9.5,  9.6, 9.7 and 9.10
hereof shall not apply and on or before (but,  except as expressly  set forth in
Section  9.8(b),  not  after)  the  tenth  business  day  after the date of such
decision,  any party to the arbitration  may elect,  in lieu of arbitration,  to
commence an Action with respect to such dispute,  controversy  or claim (or such
series of related  disputes,  controversies or claims) in any court of competent
jurisdiction.  If the arbitrator  does not so determine,  the provisions of this
Article  (including  with  respect  to  time  periods)  shall  apply  as  if  no
determinations were sought or made pursuant to this Section 9.8(a).


                  (b) In the event that an  arbitration  award in excess of $100
million is issued in any arbitration  proceeding commenced hereunder,  any party
may,  within  60 days  after  the  date  of  such  award,  submit  the  dispute,
controversy or claim (or series of related  disputes,  controversies  or claims)
giving rise thereto to a court of competent jurisdiction,  regardless of whether
such party or any other party sought to commence an Action in lieu of proceeding
with  arbitration  in  accordance  with  Section  9.8(a).  In  such  event,  the
applicable  court may elect to rely on the record  developed in the  arbitration
or, if it determines  that it would be advisable in connection  with the matter,
allow  the  parties  to  seek  additional  discovery  or to  present  additional
evidence.  Each party shall be entitled to present  arguments  to the court with
respect to whether any such additional  discovery or evidence shall be permitted
and with  respect  to all other  matters  relating  to the  applicable  dispute,
controversy or claim (or series of related disputes, controversies or claims).


                  (c)  No  party  shall  raise  as  a  defense  the  statute  of
limitations  if the  applicable  Arbitration  Demand  Notice was delivered on or
prior to the Applicable Deadline and, if applicable,  if the matter is submitted
to a court of  competent  jurisdiction  within the 60-day  period  specified  in
Section 9.8(b).

                  9.9.  CONTINUITY OF SERVICE AND PERFORMANCE.  Unless otherwise
agreed in writing,  the parties will  continue to provide  service and honor all
other commitments  under this Agreement and each Ancillary  Agreement during the
course of dispute resolution  pursuant to the provisions of this Article IX with
respect to all matters not subject to such dispute, controversy or claim.

                  9.10. LAW GOVERNING ARBITRATION PROCEDURES. The
interpretation
of the provisions of this Article IX, only insofar as they relate
to the
agreement to arbitrate and


<PAGE>

any procedures  pursuant  thereto,  shall be governed by the Arbitration Act and
other applicable federal law. In all other respects,  the interpretation of this
Agreement shall be governed as set forth in Section 12.2.

                                    ARTICLE X
                   FURTHER ASSURANCES AND ADDITIONAL COVENANTS

                  10.1.  FURTHER  ASSURANCES.  (a) In  addition  to the  actions
specifically  provided  for  elsewhere  in this  Agreement,  each of the parties
hereto shall use its reasonable best efforts, prior to, on and after the Closing
Date,  to take,  or cause to be taken,  all  actions,  and to do, or cause to be
done, all things,  reasonably  necessary,  proper or advisable under  applicable
laws,   regulations   and  agreements  to  consummate  and  make  effective  the
transactions contemplated by this Agreement and the Ancillary Agreements.

                  (b) Without limiting the foregoing, prior to, on and after the
Closing Date,  each party hereto shall  cooperate  with the other  parties,  and
without any further  consideration,  but at the expense of the requesting party,
to  execute  and  deliver,  or use its  reasonable  best  efforts to cause to be
executed and delivered,  all instruments,  including  instruments of conveyance,
assignment  and  transfer,  and to make all  filings  with,  and to  obtain  all
consents,  approvals or  authorizations  of, any  Governmental  Authority or any
other Person under any permit, license, agreement, indenture or other instrument
(including any Consents or Governmental  Approvals),  and to take all such other
actions as such party may  reasonably  be  requested  to take by any other party
hereto from time to time,  consistent  with the terms of this  Agreement and the
Ancillary Agreements, in order to effectuate the provisions and purposes of this
Agreement  and the Ancillary  Agreements  and the transfers of the Lucent Assets
and the  assignment  and  assumption  of the  Lucent  Liabilities  and the other
transactions  contemplated  hereby and thereby.  Without limiting the foregoing,
each party will, at the reasonable request, cost and expense of any other party,
take such other  actions as may be  reasonably  necessary  to vest in such other
party good and marketable title, free and clear of any Security Interest, if and
to the extent it is practicable to do so.

                  (c) On or prior to the Closing Date,  AT&T,  Lucent and NCR in
their  respective  capacities  as  direct  and  indirect  stockholders  of their
respective  Subsidiaries,  shall each  ratify any actions  which are  reasonably
necessary or desirable to be taken by AT&T,  Lucent, NCR or any other Subsidiary
of AT&T, as the case may be, to effectuate the transactions contemplated by this
Agreement.  On or prior to the  Closing  Date,  AT&T and  Lucent  shall take all
actions as may be necessary to approve the stock-based employee benefit plans of
Lucent in order to satisfy the  requirement of Rule 16b-3 under the Exchange Act
and Section 162(m) of the Code.

                  (d) The parties  hereto agree to take any  reasonable  actions
necessary in order for the  Distribution  to qualify as a tax-free  distribution
pursuant to Section 355 of the Code.

                  (e) AT&T,  Lucent  and NCR,  and each of the  members of their
respective Groups, waive (and agree not to assert against any of the others) any
claim or demand  that any of them may have  against  any of the  others  for any
Liabilities  or other  claims  relating to or arising out of: (i) the failure of
Lucent or any member of the Lucent Group,  on the one hand,  or of AT&T,  NCR or
any member of the AT&T  Services  Group or the NCR Group,  on the other hand, to
provide any notification or disclosure required under any state


<PAGE>

Environmental  Law in connection  with the Separation or the other  transactions
contemplated  by this  Agreement,  including  the  transfer by any member of any
Group to any member of any other Group of  ownership or  operational  control of
any Assets not  previously  owned or  operated by such  transferee;  or (ii) any
inadequate,  incorrect or incomplete  notification or disclosure  under any such
state  Environmental  Law by  the  applicable  transferor.  To  the  extent  any
Liability to any  Governmental  Authority or any third Person  arises out of any
action or inaction  described in clause (i) or (ii) above, the transferee of the
applicable Asset hereby assumes and agrees to pay any such Liability.

                  (f) Prior to the Closing  Date,  if one or more of the parties
identifies any commercial or other service that is needed to assure a smooth and
orderly  transition of the businesses in connection with the consummation of the
transactions  contemplated  hereby,  and that is not  otherwise  governed by the
provisions  of this  Agreement  or any  Ancillary  Agreement,  the parties  will
cooperate in  determining  whether there is a mutually  acceptable  arm's-length
basis on which one or more of the other parties will provide such service.

                  10.2.  QUALIFICATION  AS  TAX-FREE  DISTRIBUTION.   After  the
Closing  Date,  none of AT&T,  Lucent or NCR shall take, or permit any member of
its respective  Group to take, any action which could  reasonably be expected to
prevent the Distribution from qualifying as a tax-free  distribution  within the
meaning of Section 355 of the Code or any other transaction contemplated by this
Agreement  or any  Ancillary  Agreement  which is  intended by the parties to be
tax-free from failing so to qualify.  Without limiting the foregoing,  after the
Closing Date and on or prior to the Distribution Date, Lucent shall not issue or
grant,  and shall not permit  any member of the Lucent  Group to issue or grant,
directly  or  indirectly,  any  shares of  Lucent  Common  Stock or any  rights,
warrants,  options or other  securities  to  purchase or acquire  (whether  upon
conversion, exchange or otherwise) any shares of Lucent Common Stock (whether or
not then exercisable, convertible or exchangeable).

                                   ARTICLE XI
                                   TERMINATION

                  11.1. TERMINATION BY MUTUAL CONSENT. This
Agreement may be
terminated at any time prior to the Distribution Date by the
mutual consent of
AT&T, Lucent and NCR.

                  11.2. OTHER  TERMINATION.  This Agreement may be terminated by
AT&T at any time prior to the Closing Date. The obligations of the parties under
Article IV (including the obligation to pursue or effect the  Distribution)  may
be  terminated  by AT&T if the  Distribution  Date shall not have occurred on or
prior to December 31, 1997.

                  11.3. EFFECT OF TERMINATION. (a) In the event of
any
termination of this Agreement prior to the Closing Date, no party
to this
Agreement (or any of its directors or officers) shall have any
Liability or
further obligation to any other party.

                  (b) In the event of any  termination  of this  Agreement on or
after the Closing Date, only the provisions of Article IV will terminate and the
other provisions of this Agreement and each Ancillary  Agreement shall remain in
full force and effect.



<PAGE>

                                   ARTICLE XII
                                  MISCELLANEOUS

                  12.1. COUNTERPARTS; ENTIRE AGREEMENT; CORPORATE
POWER. (a)
This Agreement and each Ancillary Agreement may be executed in one
or more
counterparts, all of which shall be considered one and the same
agreement, and
shall become effective when one or more counterparts have been
signed by each of
the parties and delivered to the other party.

                  (b)  This  Agreement,  and the  Ancillary  Agreements  and the
Exhibits,  Schedules  and  Appendices  hereto  and  thereto  contain  the entire
agreement  between  the  parties  with  respect to the  subject  matter  hereof,
supersede  all  previous  agreements,   negotiations,   discussions,   writings,
understandings,  commitments  and  conversations  with  respect to such  subject
matter and there are no agreements or  understandings  between the parties other
than those set forth or referred to herein or therein.

                  (c) AT&T  represents on behalf of itself and each other member
of the AT&T Services Group, Lucent represents on behalf of itself and each other
member of the Lucent Group and NCR represents on behalf of itself and each other
member of the NCR Group as follows:

                  (i) each such  Person  has the  requisite
corporate  or other
         power  and  authority  and has  taken  all  corporate  or
other  action
         necessary  in  order  to  execute,  deliver  and
perform  each of this
         Agreement  and each other  Ancillary  Agreements to which
it is a party
         and to consummate the transactions contemplated hereby
and thereby; and

                  (ii) this Agreement and each  Ancillary
Agreement to which it
         is a party has been duly executed and delivered by it and
constitutes a
         valid and binding  agreement of it enforceable  in
accordance  with the
         terms thereof.

                  (d) Each  party  hereto  acknowledges  that it and each  other
party hereto is executing  certain of the  Ancillary  Agreements  by  facsimile,
stamp or mechanical  signature.  Each party hereto expressly adopts and confirms
each such facsimile,  stamp or mechanical  signature made in its respective name
as if it were a manual  signature,  agrees that it will not assert that any such
signature  is not  adequate  to bind such party to the same extent as if it were
signed  manually  and agrees that at the  reasonable  request of any other party
hereto at any time it will as promptly as reasonably practicable cause each such
Ancillary  Agreement to be manually executed (any such execution to be as of the
date of the initial date thereof).

                  (e)  Notwithstanding  any  provision of this  Agreement or any
Ancillary  Agreement,  neither AT&T, Lucent nor NCR shall be required to take or
omit to take any act that would  violate its  fiduciary  duties to any  minority
stockholders  of  AT&T  Capital   Corporation  or  any  other  non-wholly  owned
Subsidiary of AT&T,  Lucent or NCR, as the case may be (it being understood that
directors'  qualifying  shares or  similar  interests  will be  disregarded  for
purposes of determining whether a Subsidiary is wholly owned).

                  12.2. GOVERNING LAW. Except as set forth in
Section 9.10, this
Agreement and, unless  expressly  provided  therein,  each
Ancillary  Agreement,
shall be governed by and construed and  interpreted in accordance  with the laws
of the State of New York (other than as to its laws of  arbitration  which shall
be governed under the Arbitration Act or other



<PAGE>

applicable federal law pursuant to Section 9.10),  irrespective of the choice of
laws principles of the State of New York, as to all matters,  including  matters
of validity, construction, effect, enforceability, performance and remedies.

                  12.3. ASSIGNABILITY.  (a) Except as set forth in any Ancillary
Agreement, this Agreement and each Ancillary Agreement shall be binding upon and
inure to the benefit of the parties hereto and thereto,  respectively, and their
respective  successors and assigns;  provided,  however, that no party hereto or
thereto may assign its respective rights or delegate its respective  obligations
under this  Agreement  or any  Ancillary  Agreement  without the  express  prior
written consent of the other parties hereto or thereto.

                  (b)  Lucent  agrees and  acknowledges  on behalf of itself and
each  other  member of the  Lucent  Group that (i) AT&T and NCR may enter into a
separation and  distribution  agreement and other  agreements and instruments in
connection  with  the  NCR  Distribution  or  otherwise  providing  for  certain
arrangements  between  AT&T and NCR and that no  consent  of any  member  of the
Lucent Group will be required in connection therewith, (ii) certain transfers of
Assets and  Liabilities  may occur after the date hereof between  members of the
AT&T  Services  Group and the NCR Group and that no consent of any member of the
Lucent Group will be required in connection therewith,  (iii) AT&T shall have no
obligation  to proceed with the NCR  Distribution,  and (iv) except as set forth
below,  all of the  rights  and  obligations  of the NCR  Group  shall  continue
regardless  of whether NCR is an  Affiliate of AT&T.  Lucent  agrees that if any
technical or other  nonmaterial  amendments  to this  Agreement or any Ancillary
Agreement  are  advisable  in  connection  with  the  NCR  Distribution  or  the
separation  of the NCR Business  from the AT&T  Services  Business,  Lucent will
reasonably cooperate with AT&T and NCR in connection therewith for no additional
consideration.  Without limiting the foregoing,  effective immediately on notice
to Lucent,  without  any  further  action  required  by any member of the Lucent
Group,  AT&T may  assume any Asset or  Liability  of any member of the NCR Group
hereunder or under any Ancillary  Agreement (and any rights of any member of the
NCR Group in  connection  therewith)  and all  members  of the NCR  Group  shall
thereupon automatically be released therefrom.



                  12.4.    THIRD   PARTY    BENEFICIARIES.    Except   for   the
indemnification  rights  under this  Agreement  of any AT&T  Indemnitee,  Lucent
Indemnitee or NCR  Indemnitee in their  respective  capacities as such,  (a) the
provisions  of this  Agreement and each  Ancillary  Agreement are solely for the
benefit of the parties and are not intended to confer upon any Person except the
parties  any  rights or  remedies  hereunder,  and (b) there are no third  party
beneficiaries  of this  Agreement or any  Ancillary  Agreement  and neither this
Agreement  nor any Ancillary  Agreement  shall provide any third person with any
remedy,  claim,  liability,  reimbursement,  claim of action  or other  right in
excess of those  existing  without  reference to this Agreement or any Ancillary
Agreement. No party hereto shall have any right, remedy or claim with respect to
any provision of this  Agreement or any  Ancillary  Agreement to the extent such
provision  relates solely to the other two parties hereto or the members of such
other two parties'  respective Groups. No party shall be required to deliver any
notice under this Agreement or under any Ancillary  Agreement to any other party
with  respect to any matter in which  such other  party has no right,  remedy or
claim.


                  12.5. NOTICES.  All notices or other communications under this
Agreement or any Ancillary  Agreement shall be in writing and shall be deemed to
be duly given when (a) delivered in person or (b) deposited in the United States
mail or private express mail, postage prepaid, addressed as follows:



<PAGE>

    If to AT&T, to:            AT&T Corp.
                               131 Morristown Road
                               Basking Ridge, NJ 07920
                               Attn: Vice President-Law and
                               Corporate Secretary

    If to Lucent, to:          Lucent Technologies Inc.
                               600 Mountain Avenue
                               Murray Hill, New Jersey 07974
                               Attn: General Counsel

    If to NCR, to:             NCR Corporation
                               1700 S. Patterson Blvd.
                               Dayton, Ohio 45479
                               Attn: Chief Financial Officer

    with a copy to:            NCR Corporation
                               1700 S. Patterson Blvd.
                               Dayton, Ohio 45479
                               Attn: General Counsel

Any party may,  by notice to the other  party,  change the address to which such
notices are to be given.

                  12.6. SEVERABILITY.  If any provision of this Agreement or any
Ancillary  Agreement or the application thereof to any Person or circumstance is
determined  by a  court  of  competent  jurisdiction  to  be  invalid,  void  or
unenforceable, the remaining provisions hereof or thereof, or the application of
such provision to Persons or circumstances or in jurisdictions  other than those
as to which it has been held  invalid  or  unenforceable,  shall  remain in full
force  and  effect  and shall in no way be  affected,  impaired  or  invalidated
thereby,  so  long  as the  economic  or  legal  substance  of the  transactions
contemplated  hereby  or  thereby,  as the case may be, is not  affected  in any
manner  adverse  to any  party.  Upon  such  determination,  the  parties  shall
negotiate in good faith in an effort to agree upon such a suitable and equitable
provision to effect the original intent of the parties.

                  12.7.  FORCE  MAJEURE.  No party shall be deemed in default of
this  Agreement  or any  Ancillary  Agreement  to the  extent  that any delay or
failure  in the  performance  of its  obligations  under this  Agreement  or any
Ancillary  Agreement  results from any cause beyond its  reasonable  control and
without its fault or negligence,  such as acts of God, acts of civil or military
authority, embargoes,  epidemics, war, riots, insurrections,  fires, explosions,
earthquakes,  floods,  unusually  severe weather  conditions,  labor problems or
unavailability  of parts,  or, in the case of computer  systems,  any failure in
electrical  or air  conditioning  equipment.  In the  event of any such  excused
delay, the time for performance shall be extended for a period equal to the time
lost by reason of the delay.

                  12.8.  PUBLICITY.  Prior to the Distribution,  each of Lucent,
NCR and AT&T shall  consult with each other prior to issuing any press  releases
or otherwise making public  statements with respect to the IPO, the Distribution
or any of the other  transactions  contemplated  hereby  and prior to making any
filings with any Governmental Authority with respect thereto.



<PAGE>

                  12.9.  EXPENSES.   Except  as  expressly  set
forth  in  this
Agreement  (including  Section  3.1(h)  hereof) or in any
Ancillary  Agreement,
whether or not the IPO or the Distribution is consummated, all third party fees,
costs and expenses paid or incurred in connection with the Distribution will be
paid by AT&T.

                  12.10. HEADINGS. The article, section and
paragraph headings
contained in this Agreement and in the Ancillary Agreements are
for reference
purposes only and shall not affect in any way the meaning or
interpretation of
this Agreement or any Ancillary Agreement.

                  12.11. SURVIVAL OF COVENANTS. Except as expressly set forth in
any Ancillary Agreement, the covenants, representations and warranties contained
in this Agreement and each Ancillary Agreement,  and liability for the breach of
any obligations contained herein, shall survive each of the Separation,  the IPO
and the  Distribution  and shall remain in full force and effect  regardless  of
whether AT&T shall consummate, delay, modify or abandon the NCR Distribution.

                  12.12. WAIVERS OF DEFAULT. Waiver by any party
of any default
by the other party of any provision of this Agreement or any
Ancillary Agreement
shall not be deemed a waiver by the waiving party of any
subsequent or other
default, nor shall it prejudice the rights of the other party.

                  12.13.  SPECIFIC  PERFORMANCE.  In the event of any  actual or
threatened default in, or breach of, any of the terms, conditions and provisions
of this  Agreement or any Ancillary  Agreement,  the party or parties who are or
are to be thereby  aggrieved  shall have the right to specific  performance  and
injunctive or other equitable  relief of its rights under this Agreement or such
Ancillary Agreement, in addition to any and all other rights and remedies at law
or in equity, and all such rights and remedies shall be cumulative.  The parties
agree that the remedies at law for any breach or  threatened  breach,  including
monetary damages, are inadequate  compensation for any loss and that any defense
in any action for specific performance that a remedy at law would be adequate is
waived.  Any  requirements  for the  securing  or  posting of any bond with such
remedy are waived.

                  12.14. AMENDMENTS.  (a) No provisions of this Agreement or any
Ancillary Agreement shall be deemed waived, amended, supplemented or modified by
any party,  unless such waiver,  amendment,  supplement  or  modification  is in
writing and signed by the authorized representative of the party against whom it
is sought to enforce such waiver, amendment, supplement or modification. Without
limiting the foregoing, the parties agree that any waiver, amendment, supplement
or modification of this Agreement or any Ancillary Agreement that solely relates
to and  affects  only two of the three  parties  hereto  shall not  require  the
consent of the third party hereto.

                  (b) Without  limiting the  foregoing,  the parties  anticipate
that,  prior to the Closing Date, some or all of the Schedules to this Agreement
may be amended or supplemented  and, in such event, such amended or supplemented
Schedules shall be attached hereto in lieu of the original Schedules.


                  12.15. INTERPRETATION. Words in the singular
shall be held to
include the plural and vice versa and words of one gender shall be
held to
include the other genders as the context requires. The terms
"hereof," "herein,"
and "herewith" and words of similar



<PAGE>

import shall,  unless otherwise  stated, be construed to refer to this Agreement
(or  the  applicable  Ancillary  Agreement)  as a  whole  (including  all of the
Schedules, Exhibits and Appendices hereto and thereto) and not to any particular
provision of this Agreement (or such Ancillary Agreement).
Article,  Section,
Exhibit,  Schedule  and  Appendix  references  are  to the  Articles,  Sections,
Exhibits,  Schedules  and  Appendices  to  this  Agreement  (or  the  applicable
Ancillary Agreement) unless otherwise specified.  The word "including" and words
of similar  import  when used in this  Agreement  (or the  applicable  Ancillary
Agreement)  shall mean  "including,  without  limitation,"  unless  the  context
otherwise  requires or unless  otherwise  specified.  The word "or" shall not be
exclusive.  For all  purposes of this  Agreement,  "allocated  costs of in-house
counsel  and  other  personnel"  shall  be  determined  in  accordance  with the
principles set forth in Schedule 12.15.  Unless expressly stated to the contrary
in this  Agreement or in any Ancillary  Agreement,  all  references to "the date
hereof,"  "the date of this  Agreement,"  "hereby" and  "hereupon"  and words of
similar  import shall all be references  to February 1, 1996,  regardless of any
amendment or restatement hereof.





<PAGE>

                  IN WITNESS  WHEREOF,  the parties have caused this  Separation
and Distribution Agreement to be executed by their duly authorized
representatives.

                                            AT&T CORP.


                                            By: /s/

- ------------------------
                                               Name:
                                               Title:

                                            LUCENT TECHNOLOGIES
INC.


                                            By: /s/

- ------------------------
                                               Name:
                                               Title:

                                            NCR CORPORATION


                                            By: /s/

- ------------------------
                                               Name:
                                               Title:
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-10
<SEQUENCE>4
<DESCRIPTION>EXHIBIT (10)(I)2
<TEXT>



                                     FORM OF

                             DISTRIBUTION AGREEMENT

                                 BY AND BETWEEN

                                   AT&T CORP.

                                       AND

                                 NCR CORPORATION




                           DATED AS OF ________, 1996

<PAGE>

                             DISTRIBUTION AGREEMENT


                  THIS DISTRIBUTION AGREEMENT, dated as of ___________, 1996, is
by and between  AT&T and NCR.  Capitalized  terms used herein and not  otherwise
defined shall have the respective meanings assigned to them in
Article I hereof.

                  WHEREAS, the Board of Directors of AT&T has determined that it
is in the  best  interests  of AT&T  and its  shareholders  to  separate  AT&T's
existing businesses into three independent businesses;

                  WHEREAS, in furtherance of the foregoing, AT&T, NCR and Lucent
have executed and delivered the Separation and Distribution  Agreement providing
for, among other things,  the initial public offering of shares of Lucent Common
Stock  (which  was  consummated  on  April  10,  1996)  and  for  the  pro  rata
distribution  by  AT&T  of all of its  shares  of  Lucent  Common  Stock  to the
shareholders of AT&T;

                  WHEREAS, AT&T, NCR and Lucent have also executed and delivered
the  Ancillary  Agreements  (as  such  term is  defined  in the  Separation  and
Distribution  Agreement)  governing certain  additional  matters relating to the
Lucent Distribution;

                  WHEREAS,  the Board of Directors  of AT&T has also  determined
that AT&T will  distribute to its  shareholders  all of the capital stock of NCR
held  directly or indirectly by AT&T,  subject to the terms and  conditions  set
forth herein;

                  WHEREAS, the NCR Distribution is intended to
qualify as a
tax-free spin-off under Section 355 of the Code;

                  WHEREAS,  it is appropriate and desirable to set forth certain
agreements that will govern certain matters relating to the NCR Distribution and
the relationship of AT&T and NCR and their respective Subsidiaries following the
NCR Distribution.

                  NOW,  THEREFORE,  the parties,  intending to be
legally bound,
agree as follows:


                                    ARTICLE I
                                   DEFINITIONS

                  For the purpose of this  Agreement the  following  terms shall
have the following meanings:

                  1.1. ACTION has the meaning set forth in the
Separation and
Distribution Agreement.

                  1.2. ADJUSTMENT has the meaning set forth in the
Tax Sharing
Agreement.

                  1.3. AFFILIATE has the meaning set forth in the
Separation and
Distribution Agreement.

<PAGE>

                  1.4.  AGENT means the  distribution  agent to be  appointed by
AT&T to  distribute,  or make book entry  credits  for, the shares of NCR Common
Stock held by AT&T pursuant to the NCR Distribution.

                  1.5. AGREEMENT means this Distribution
Agreement, including all of the Schedules hereto.

                  1.6. ANCILLARY AGREEMENTS has the meaning set
forth in the
Separation and Distribution Agreement.

                  1.7. APPLICABLE DEADLINE has the meaning set
forth in the
Separation and Distribution Agreement.

                  1.8. ARBITRATION ACT has the meaning set forth
in the
Separation and Distribution Agreement.

                  1.9. ARBITRATION DEMAND NOTICE has the meaning
set forth in
the Separation and Distribution Agreement.

                  1.10. ASSETS has the meaning set forth in the
Separation and
Distribution Agreement.

                  1.11. AT&T means AT&T Corp., a New York
corporation.

                  1.12. AT&T COMMON STOCK means the Common Stock,
$1.00 par
value per share, of AT&T.

                  1.13. AT&T GROUP has the meaning set forth in
the Separation
and Distribution Agreement.

                  1.14. AT&T INDEMNITEES has the meaning set forth
in Section
4.2 hereof.

                  1.15. AT&T SERVICES BUSINESS has the meaning set
forth in the
Separation and Distribution Agreement.

                  1.16.  AT&T SERVICES GROUP means each member of
the AT&T Group
other than any member of the NCR Group.

                  1.17. AT&T VOLUME PURCHASE AGREEMENT means the
Volume Purchase
Agreement, dated as of the date hereof, as amended, by and between
AT&T and NCR.

                  1.18. CLOSING DATE has the meaning set forth in
the Separation
and Distribution Agreement.

                  1.19. CODE means the Internal Revenue Code of
1986, as
amended.




<PAGE>

                  1.20. COMMISSION means the Securities and
Exchange Commission.

                  1.21. CONSENTS means any consents, waivers or
approvals from,
or notification requirements to, any third parties.

                  1.22. DETERMINATION REQUEST has the meaning set
forth in the
Separation and Distribution Agreement.

                  1.23.  EXCHANGE ACT means the Securities Exchange Act of 1934,
as amended, together with the rules and regulations promulgated thereunder.

                  1.24. GOVERNMENTAL APPROVALS has the meaning set
forth in the
Separation and Distribution Agreement.

                  1.25. GOVERNMENTAL AUTHORITY has the meaning set
forth in the
Separation and Distribution Agreement.

                  1.26. GROUP means any of the AT&T Services
Group, the Lucent
Group or the NCR Group, as the context requires.

                  1.27. INDEMNIFYING PARTY has the meaning set
forth in Section
4.4(a) hereof.

                  1.28. INDEMNITEE has the meaning set forth in
Section 4.4(a)
hereof.

                  1.29. INDEMNITY PAYMENT has the meaning set
forth in Section
4.4(a) hereof.

                  1.30. INSURANCE PROCEEDS has the meaning set
forth in the
Separation and Distribution Agreement.

                  1.31. IPO has the meaning set forth in the
Separation and
Distribution Agreement.

                  1.32. LIABILITIES has the meaning set forth in
the Separation
and Distribution Agreement.

                  1.33. LUCENT means Lucent Technologies Inc., a
Delaware
corporation.

                  1.34. LUCENT COMMON STOCK means the Common
Stock, $.01 par value per share, of Lucent.

                  1.35. LUCENT  DISTRIBUTION means the distribution by AT&T on a
pro rata basis to holders of AT&T Common Stock of all of the outstanding  shares
of  Lucent  Common  Stock  owned  by  AT&T as set  forth  in  Article  IV of the
Separation and Distribution Agreement.





<PAGE>

                  1.36. LUCENT GROUP has the meaning set forth in
the Separation
and Distribution Agreement.

                  1.37. LUCENT INDEMNITEES has the meaning set
forth in the
Separation and Distribution Agreement.

                  1.38. NCR means NCR Corporation, a Maryland
corporation.

                  1.39. NCR ANCILLARY  AGREEMENTS means the AT&T
Volume Purchase
Agreement, the NCR Employee Benefits Agreement, the Procedures
Agreement and the
agreements related or supplemental to this Agreement or to any of
the foregoing.

                  1.40. NCR BUSINESS means (a) the computer  products,  computer
systems,  data processing and information  solutions  business and operations as
conducted  by NCR  and its  Subsidiaries;  (b)  except  as  otherwise  expressly
provided herein or in the Separation and Distribution Agreement, any terminated,
divested  or  discontinued  businesses  or  operations  (i)  that at the time of
termination,  divestiture  or  discontinuation  primarily  related  to  the  NCR
Business as then  conducted,  or (ii) that were  conducted by NCR, by any Person
that at any time was an  Affiliate  of NCR  prior to the  acquisition  of NCR by
AT&T,  or by any  Person  that  at any  time  was  controlled  by  NCR;  (c) the
terminated,  divested  or  discontinued  businesses  and  operations  listed  or
described on Schedule 1.75 to the Separation and Distribution Agreement; and (d)
any business or operation  conducted by NCR or any  Affiliate of NCR at any time
on or after the NCR Distribution Date.

                  1.41. NCR COMMON STOCK means the Common Stock,
par value $.01
per share, of NCR.

                  1.42. NCR COVERED LIABILITIES has the meaning
set forth in the
Separation and Distribution Agreement.

                  1.43. NCR DISTRIBUTION means the distribution by AT&T on a pro
rata basis to holders of AT&T Common Stock of all of the  outstanding  shares of
NCR  Common  Stock  owned by AT&T on the NCR  Distribution  Date as set forth in
Article II of this Agreement.

                  1.44. NCR DISTRIBUTION DATE means the date determined pursuant
to Section 2.3 of this Agreement on which the NCR Distribution occurs.

                  1.45.  NCR  EMPLOYEE  BENEFITS  AGREEMENT  means
the  Employee
Benefits Agreement, dated as of the date hereof, as amended, by
and between AT&T
and NCR.

                  1.46. NCR FORM 10 means the Registration  Statement on Form 10
to be filed by NCR with the Commission in connection with the NCR Distribution.

                  1.47. NCR GROUP has the meaning set forth in the
Separation
and Distribution Agreement.





<PAGE>

                  1.48. NCR INDEMNITEES has the meaning set forth
in Section
4.3(a) hereof.

                  1.49.  NCR   INFORMATION   STATEMENT   means  the  Information
Statement  constituting  a part of the NCR Form 10, which will be mailed to AT&T
shareholders in connection with the NCR Distribution.

                  1.50.  NCR INSURANCE  POLICIES  means the  insurance  policies
written by insurance  carriers  unaffiliated  with AT&T pursuant to which NCR or
one or more of its Subsidiaries (or their respective officers or directors) will
be insured parties after the NCR Distribution Date.

                  1.51.  NCR RECORD  DATE  means the time at which the  transfer
agent for the AT&T  Common  Stock  closes its  transfer  records for AT&T Common
Stock on the date to be  determined by the AT&T Board of Directors as the record
date for  determining  shareholders  of AT&T  entitled  to receive  the  special
dividend of shares of NCR Common Stock in the NCR Distribution.

                  1.52. NYSE means The New York Stock Exchange,
Inc.

                  1.53. PERSON has the meaning set forth in the
Separation and
Distribution Agreement.

                  1.54.  PREFERRED  SHARE PURCHASE  RIGHTS mean the Rights to be
issued pursuant to a Rights  Agreement  substantially  in the form of the Rights
Agreement attached as an Exhibit to the NCR Form 10.

                  1.55. PROCEDURES AGREEMENT means the Procedures
Agreement,
dated as of the date hereof, as amended, by and between AT&T and
NCR.

                  1.56. RESTRUCTURING ADJUSTMENT has the meaning
set forth in
the Tax Sharing Agreement.

                  1.57.  SECURITIES  ACT means the  Securities
Act of 1933,  as
amended, together with the rules and regulations promulgated
thereunder.

                  1.58. SECURITY INTEREST has the meaning set
forth in the
Separation and Distribution Agreement.

                  1.59. SEPARATION has the meaning set forth in
the Separation
and Distribution Agreement.

                  1.60.   SEPARATION  AND   DISTRIBUTION   AGREEMENT  means  the
Separation and Distribution Agreement,  dated as of February 1, 1996, as amended
and restated as of March 29, 1996, by and among AT&T, Lucent and NCR,  including
the Schedules thereto.





<PAGE>

                  1.61. SHARED CONTINGENT LIABILITY has the
meaning set forth in
the Separation and Distribution Agreement.

                  1.62. SUBSIDIARY has the meaning set forth in
the Separation
and Distribution Agreement.

                  1.63. TAX SHARING AGREEMENT has the meaning set
forth in the
Separation and Distribution Agreement.

                  1.64. TAXES has the meaning set forth in the Tax
Sharing
Agreement.

                  1.65. THIRD PARTY CLAIM has the meaning set
forth in Section
4.5(a) hereof.

                  1.66.   TRANSACTION  AGREEMENTS  means,
collectively,   this
Agreement,  the  NCR  Ancillary  Agreements,  the  Separation
and  Distribution
Agreement and the Ancillary Agreements.


                                   ARTICLE II
                                THE DISTRIBUTION

                  2.1. THE  DISTRIBUTION.  (a) Subject to Section 2.3 hereof, on
or prior to the NCR  Distribution  Date,  AT&T will deliver to the Agent for the
benefit of  holders of record of AT&T  Common  Stock on the NCR Record  Date,  a
single  stock  certificate  representing  all of the  outstanding  shares of NCR
Common  Stock  then  beneficially  owned  by  AT&T  or any of its  wholly  owned
Subsidiaries,  and shall cause the transfer  agent for the shares of AT&T Common
Stock to instruct the Agent on the NCR  Distribution  Date either to distribute,
or make  book-entry  credits for, the  appropriate  number of such shares of NCR
Common Stock to each such holder of AT&T Common Stock or  designated  transferee
or transferees of such holder.

                  (b) Subject to Section  2.4,  each holder of AT&T Common Stock
on the NCR Record Date (or such holder's  designated  transferee or transferees)
will be  entitled to receive in the NCR  Distribution  a number of shares of NCR
Common  Stock  equal to the number of shares of AT&T  Common  Stock held by such
holder on the NCR Record Date  multiplied by a fraction,  the numerator of which
is the number of shares of NCR Common Stock beneficially owned by AT&T or any of
its wholly  owned  Subsidiaries  on the NCR Record Date and the  denominator  of
which is the number of shares of AT&T Common Stock outstanding on the NCR Record
Date.

                  (c) Each of NCR and AT&T,  as the case may be, will provide to
the  Agent all  share  certificates  and any  information  required  in order to
complete the NCR Distribution on the terms contemplated hereby.

                  2.2. ACTIONS PRIOR TO THE NCR DISTRIBUTION. (a)
AT&T and NCR
shall prepare and mail, prior to the NCR Distribution Date, to the
holders of
AT&T Common




<PAGE>

Stock,  the  NCR  Information  Statement,  which  shall  set  forth  appropriate
disclosure  concerning NCR, the NCR  Distribution and such other matters as AT&T
and NCR may determine.  AT&T and NCR shall prepare,  and NCR shall file with the
Commission, the NCR Form 10, which shall include or incorporate by reference the
NCR  Information  Statement.  NCR shall use its reasonable best efforts to cause
the NCR Form 10 to be  declared  effective  under  the  Exchange  Act as soon as
practicable following the filing thereof.

                  (b)  AT&T  and  NCR  shall  take  all  such  action  as may be
necessary or  appropriate  under the  securities  or blue sky laws of the United
States (and any comparable  laws under any foreign  jurisdiction)  in connection
with the NCR Distribution.

                  (c) NCR shall prepare and file,  and shall use its  reasonable
best efforts to have approved,  an application for the listing of the NCR Common
Stock (and related Preferred Share Purchase Rights) to be distributed in the NCR
Distribution  on the  NYSE or  another  mutually  agreeable  stock  exchange  or
quotations system.

                  2.3. CONDITIONS TO THE NCR DISTRIBUTION.  The
AT&T Board shall
have  the  sole  discretion  to  determine  the  NCR  Record
Date  and  the NCR
Distribution  Date, and all  appropriate  procedures in connection  with the NCR
Distribution,  provided that the NCR Distribution  shall not occur prior to such
time as each of the following conditions shall have been satisfied or shall have
been waived by the AT&T Board in its sole discretion:

                  (a) a private letter ruling from the Internal
Revenue Service
         shall have been obtained,  and shall continue in effect,
to the effect
         that,  among  other  things,  the NCR  Distribution
will  qualify as a
         tax-free distribution for federal income tax purposes
under Section 355
         of  the  Code,   and  such  ruling  shall  be  in  form
and  substance
         satisfactory to AT&T in its sole discretion;

                  (b) any material Governmental Approvals and
Consents necessary
         to consummate the NCR  Distribution  shall have been
obtained and be in
         full force and effect;

                  (c) no  order,  injunction  or  decree  issued
by any court or
         agency  of  competent   jurisdiction   or  other  legal
restraint  or
         prohibition  preventing the consummation of the NCR
Distribution  shall
         be in effect and no other event shall have  occurred or
failed to occur
         that prevents the consummation of the NCR Distribution;

                  (d) the NCR Form 10 shall have been declared
effective by the
         Commission;

                  (e) AT&T shall have  received a  favorable
response  from the
         Staff of the Commission to a request for a no-action
letter concerning,
         among  other  matters,   whether  the  NCR
Distribution  and  related
         transactions  may be effected  without  registration  of
the NCR Common
         Stock  (and  related   Preferred  Share  Purchase
Rights)  under  the
         Securities Act;





<PAGE>

                  (f) the NCR Common Stock (and related Preferred
Share Purchase
         Rights)  shall have been  accepted  for  listing by the
NYSE or another
         mutually agreeable stock exchange or quotations system;
and

                  (g) the AT&T Board shall have formally approved
the
         Distribution;

provided  that  the  satisfaction  of  such  conditions  shall  not  create  any
obligation on the part of AT&T,  NCR or any other Person to effect or to seek to
effect the NCR  Distribution  or in any way limit AT&T's right to terminate this
Agreement  as set forth in  Section  7.1 or alter the  consequences  of any such
termination from those specified in Section 7.2.

                  2.4.   FRACTIONAL   SHARES.   No   certificates   representing
fractional  shares of NCR Common  Stock will be  distributed  to holders of AT&T
Common Stock in the NCR Distribution.  Holders that receive  certificates in the
NCR  Distribution  and  holders  that  receive  less than one whole share of NCR
Common Stock in the NCR Distribution will receive cash in lieu of such
fractional  shares as contemplated  hereby. As soon as practicable after the NCR
Distribution  Date,  AT&T  shall  direct  the Agent to  determine  the number of
fractional  shares of NCR Common  Stock  allocable  to each  holder of record or
beneficial  owner of AT&T Common  Stock as of the Record Date that will  receive
cash in lieu of such fractional  shares, to aggregate all such fractional shares
and sell the whole shares obtained by aggregating such fractional  shares either
in open  market  transactions  or  otherwise,  in each  case at then  prevailing
trading  prices,  and to cause to be  distributed to each such holder or for the
benefit of each such  beneficial  owner, in lieu of any fractional  share,  such
holder's or owner's  ratable  share of the  proceeds of such sale,  after making
appropriate  deductions of the amount required to be withheld for federal income
tax purposes  and after  deducting  an amount  equal to all  brokerage  charges,
commissions and transfer taxes attributed to such sale. AT&T and the Agent shall
use their  reasonable  best efforts to aggregate the shares of AT&T Common Stock
that may be held by any beneficial  owner thereof  through more than one account
in determining the fractional share allocable to such beneficial owner.


                                   ARTICLE III
               CERTAIN AGREEMENTS RELATING TO THE NCR DISTRIBUTION

                  3.1. NCR ANCILLARY AGREEMENTS. Effective as of
the date
hereof, each of AT&T and NCR are executing and delivering each of
the NCR
Ancillary Agreements.

                  3.2. THE NCR BOARD.  NCR and AT&T shall take all actions which
may be required to elect or  otherwise  appoint as directors of NCR, on or prior
to the NCR Distribution Date, the persons named in the NCR Form 10 to constitute
the Board of Directors of NCR on the NCR Distribution Date.

                  3.3.  NCR  CHARTER,  BYLAWS  AND  RIGHTS.  Prior  to  the  NCR
Distribution Date, (a) AT&T shall cause Articles of Amendment and Restatement of
NCR,  substantially  in the form  filed  with the NCR Form 10,  to be filed  for
record with the Maryland State  Department of Assessments and Taxation and to be
in effect on the NCR Distribution Date,




<PAGE>

and (b) the Board of  Directors of NCR shall amend the Bylaws of NCR so that the
NCR Bylaws are  substantially  in the form filed with the NCR Form 10.  Prior to
the NCR Record Date,  the Board of Directors of NCR shall  declare a dividend of
the  Preferred  Share  Purchase  Rights so that each share of NCR  Common  Stock
issued and  outstanding on the NCR  Distribution  Date shall  initially have one
Preferred Share Purchase Right attached thereto.

                  3.4. TERMINATION OF INTERCOMPANY AGREEMENTS. (a) Except as set
forth in Section 3.4(b) or Section  2.4(b) of the  Separation  and  Distribution
Agreement or Schedule  2.4(b)(ii)  thereto,  in  furtherance of the releases and
other provisions of Section 4.1 hereof, NCR and each member of the NCR Group, on
the one hand, and AT&T and the respective members of the AT&T Services Group, on
the  other  hand,  hereby  terminate  any  and  all  agreements,   arrangements,
commitments or understandings,  whether or not in writing,  between or among NCR
and/or any member of the NCR Group,  on the one hand, and AT&T and/or any member
of the  AT&T  Services  Group,  on  the  other  hand,  effective  as of the  NCR
Distribution  Date. No such  terminated  agreement,  arrangement,  commitment or
understanding  (including  any  provision  thereof  which  purports  to  survive
termination)  shall be of any further force or effect after the NCR Distribution
Date. Each party shall, at the reasonable  request of any other party,  take, or
cause to be  taken,  such  other  actions  as may be  necessary  to  effect  the
foregoing.

                  (b) The provisions of Section 3.4(a) shall not apply to any of
the following agreements, arrangements, commitments or understandings (or to any
of the  provisions  thereof):  (i) the  Transaction  Agreements  (and each other
agreement or instrument expressly  contemplated by any Transaction  Agreement to
be  entered  into by any of the  parties  hereto or any of the  members of their
respective   Groups);   (ii)  any  agreements,   arrangements,   commitments  or
understandings listed or described on Schedule 3.4(b)(ii); (iii) any agreements,
arrangements,  commitments or  understandings to which any Person other than the
parties hereto and their  respective  Affiliates is a party;  (iv) except as set
forth in Schedule  3.4(b)(iv),  any  intercompany  accounts  payable or accounts
receivable  accrued as of the NCR  Distribution  Date that are  reflected in the
books  and  records  of the  parties  or  otherwise  documented  in  writing  in
accordance with past practices; (v) any agreements, arrangements, commitments or
understandings  to which  AT&T  Capital  Corporation,  any  member of the Lucent
Group, or any other  non-wholly owned Subsidiary of AT&T or NCR, as the case may
be, is a party (it being understood that directors' qualifying shares or similar
interests will be disregarded  for purposes of determining  whether a Subsidiary
is wholly owned);  (vi) any written Tax sharing or Tax allocation  agreements to
which  any  member of any  Group is a party;  and  (vii)  any other  agreements,
arrangements,   commitments  or  understandings  that  any  of  the  Transaction
Agreements expressly contemplates will survive the NCR Distribution Date.

                  3.5.  DISCLAIMER OF  REPRESENTATIONS  AND
WARRANTIES.  Each of
AT&T (on behalf of itself and each  member of the AT&T  Services
Group) and NCR
(on behalf of itself and each  member of the NCR Group)  understands  and agrees
that,  except as expressly set forth in any Transaction  Agreement,  no party to
any Transaction Agreement or any other agreement or document contemplated by any
Transaction Agreement either has or is




<PAGE>

representing  or  warranting  in  any  way  as  to  the  Assets,  businesses  or
Liabilities retained,  transferred or assumed as contemplated hereby or thereby,
as to any  consents or approvals  required in  connection  therewith,  as to the
value or freedom from any Security Interests of, or any other matter concerning,
any  Assets of such  party,  or as to the  absence of any  defenses  or right of
setoff or freedom  from  counterclaim  with respect to any claim or other Asset,
including any accounts receivable,  of any party, or as to the legal sufficiency
of any assignment, document or instrument delivered hereunder to convey title to
any Asset or thing of value upon the  execution,  delivery and filing  hereof or
thereof. Except as may expressly be set forth in any Transaction Agreement,  all
such Assets were, or are being,  transferred,  or are being retained,  on an "as
is,"  "where is" basis  (and,  in the case of any real  property,  by means of a
quitclaim or similar form deed or  conveyance)  and the  respective  transferees
shall bear the  economic and legal risks that any  conveyance  shall prove to be
insufficient to vest in the transferee good and marketable title, free and clear
of any Security Interest.

                  3.6. NON-U.S. PLAN. On or prior to the NCR
Distribution Date,
NCR and AT&T shall use their reasonable best efforts to
consummate, or to cause
to be consummated, the transactions set forth on Schedule 3.6
hereto.

                  3.7. LETTERS OF CREDIT AND RELATED MATTERS.  In
the event that
at any  time,  whether  prior  to or  after  the  NCR
Distribution  Date,  AT&T
identifies any letters of credit, interest rate or foreign exchange contracts or
other financial or other contracts that relate primarily to the NCR Business but
for  which any  member of the AT&T  Services  Group has  contingent,  secondary,
joint,  several or other  Liability  of any nature  whatsoever,  NCR will at its
expense take such actions and enter into such  agreements  and  arrangements  as
AT&T may request to effect the release or substitution of the member of the AT&T
Services Group.



                                   ARTICLE IV
                        MUTUAL RELEASES; INDEMNIFICATION

                  4.1. RELEASE OF PRE-CLOSING  CLAIMS. (a) Except as provided in
Section 4.1(c),  effective as of the NCR Distribution Date, NCR does hereby, for
itself  and each  other  member of the NCR Group,  their  respective  Affiliates
(other  than  any  member  of the AT&T  Services  Group  or the  Lucent  Group),
successors  and  assigns,  and all  Persons  who at any  time  prior  to the NCR
Distribution  Date  have  been  shareholders,  directors,  officers,  agents  or
employees  of any  member of the NCR Group (in each  case,  in their  respective
capacities as such), remise,  release and forever discharge AT&T, the members of
the AT&T Services Group,  their respective  Affiliates (other than any member of
the NCR Group or the Lucent Group),  successors and assigns, and all Persons who
at  any  time  prior  to the  NCR  Distribution  Date  have  been  shareholders,
directors,  officers,  agents or  employees  of any member of the AT&T  Services
Group  (in each  case,  in their  respective  capacities  as  such),  and  their
respective heirs,  executors,  administrators,  successors and assigns, from any
and all Liabilities whatsoever, whether at law or in equity (including any right
of contribution),  whether arising under any contract or agreement, by operation
of law or otherwise, existing




<PAGE>

or arising  from any acts or events  occurring or failing to occur or alleged to
have occurred or to have failed to occur or any  conditions  existing or alleged
to have existed on or before the NCR Distribution Date,  including in connection
with the actions or decisions  taken or omitted to be taken in connection  with,
and the other activities  relating to, the structuring or  implementation of any
of the Separation, the IPO, the Lucent Distribution or the NCR Distribution.

                  (b) Except as provided in Section 4.1(c),  effective as of the
NCR Distribution Date, AT&T does hereby, for itself and each other member of the
AT&T  Services  Group,  their  respective  Affiliates  (other than AT&T  Capital
Corporation  or any of its  Subsidiaries,  any  member  of the NCR  Group or the
Lucent Group),  successors and assigns, and all Persons who at any time prior to
the NCR Distribution Date have been shareholders, directors, officers, agents or
employees  of any member of the AT&T  Services  Group  other  than AT&T  Capital
Corporation  or any of its  Subsidiaries  (in each  case,  in  their  respective
capacities as such),  remise,  release and forever discharge NCR, the respective
members of the NCR Group, their respective  Affiliates (other than any member of
the AT&T Services  Group or the Lucent Group),  successors and assigns,  and all
Persons  who  at  any  time  prior  to  the  NCR  Distribution  Date  have  been
shareholders,  directors, officers, agents or employees of any member of the NCR
Group  (in each  case,  in their  respective  capacities  as  such),  and  their
respective heirs,  executors,  administrators,  successors and assigns, from any
and all Liabilities whatsoever, whether at law or in equity (including any right
of contribution),  whether arising under any contract or agreement, by operation
of law or  otherwise,  existing or arising from any acts or events  occurring or
failing to occur or alleged to have  occurred  or to have failed to occur or any
conditions existing or alleged to have existed on or before the NCR Distribution
Date,  including in connection with the transactions and all other activities to
implement any of the  Separation,  the IPO, the Lucent  Distribution  or the NCR
Distribution.

                  (c) Nothing  contained  in Section  4.1(a) or (b) shall impair
any  right  of  any  Person  to  enforce  the  Transaction  Agreements,  or  any
agreements,  arrangements,  commitments or understandings  that are specified in
the Separation and  Distribution  Agreement,  in Section 3.4(b) or the Schedules
hereto  or  thereto  not  to  terminate  as of  the  Closing  Date  or  the  NCR
Distribution  Date,  as the case may be,  in each  case in  accordance  with its
terms. Nothing contained in Section 4.1(a) or (b) shall release any Person from:

                   (i) any Liability provided in or resulting from
any agreement
         among any members of the AT&T  Services  Group or the NCR
Group that is
         specified in the  Separation  and  Distribution
Agreement,  in Section
         3.4(b)  or  the  applicable  Schedules  hereto  or
thereto  as  not to
         terminate as of the Closing Date or as of the NCR
Distribution Date, as
         the  case  may  be,  or any  other  Liability  so
specified  as not to
         terminate as of the Closing Date or NCR Distribution Date;

                  (ii)  any   Liability,   contingent  or
otherwise,   assumed,
         transferred, assigned or allocated to the Group of which
such Person is
         a member in accordance  with,  or any other  Liability of
any member of
         any Group under, any Transaction Agreement;





<PAGE>

                 (iii) any  Liability  that the parties may have
with respect to
         indemnification  or contribution  pursuant to this
Agreement for claims
         brought against the parties by third Persons,  which
Liability shall be
         governed by the provisions of this Article IV and by the
Separation and
         Distribution  Agreement,   and,  if  applicable,   by
the  appropriate
         provisions of the Ancillary Agreements or NCR Ancillary
Agreements; or

                  (iv) any  Liability  the release of which would
result in the
         release of any Person  other than a Person  released
pursuant  to this
         Section  4.1;  provided  that the  parties  agree not to
bring  suit or
         permit any of their  Subsidiaries to bring suit against
any such Person
         with  respect to any  Liability to the extent that such
Person would be
         released with respect to such Liability by this Section
4.1 but for the
         provisions of this clause (iv).

                  (d) NCR shall not make, and shall not permit any member of the
NCR Group to make,  any claim or demand,  or commence any Action  asserting  any
claim or demand,  including any claim of  contribution  or any  indemnification,
against  AT&T,  any  member of the AT&T  Services  Group,  or any  other  Person
released  pursuant to Section 4.1(a),  with respect to any Liabilities  released
pursuant to Section  4.1(a).  AT&T shall not, and shall not permit any member of
the AT&T  Services  Group,  to make any claim or demand,  or commence any Action
asserting  any  claim or  demand,  including  any claim of  contribution  or any
indemnification, against NCR or any member of the NCR Group, or any other Person
released  pursuant to Section 4.1(b),  with respect to any Liabilities  released
pursuant to Section 4.1(b).

                  (e) It is the  intent of each of AT&T and NCR by virtue of the
provisions  of this Section 4.1 to provide for a full and  complete  release and
discharge  of all  Liabilities  existing  or  arising  from all acts and  events
occurring  or failing to occur or alleged to have  occurred or to have failed to
occur and all  conditions  existing or alleged to have  existed on or before the
NCR Distribution  Date,  between or among NCR or any member of the NCR Group, on
the one hand,  and AT&T or any member of the AT&T Services  Group,  on the other
hand (including any contractual  agreements or arrangements  existing or alleged
to exist  between or among any such  members  on or before the NCR  Distribution
Date),  except as expressly  set forth in Section  4.1(c).  At any time,  at the
request of any other party, each party shall cause each member of its respective
Group to execute and deliver releases reflecting the provisions hereof.

                  4.2.  INDEMNIFICATION BY NCR. NCR shall indemnify,  defend and
hold harmless  AT&T,  each member of the AT&T  Services  Group and each of their
respective directors,  officers and employees, and each of the heirs, executors,
successors  and  assigns  of any  of  the  foregoing  (collectively,  the  "AT&T
Indemnitees"),  from and against any and all Liabilities of the AT&T Indemnitees
relating  to,  arising  out of or  resulting  from  any of the  following  items
(without duplication),  in each case whether arising before, on or after the NCR
Distribution Date:

                  (a) the failure of NCR or any other member of
the NCR Group or
         any other Person to pay,  perform or otherwise  promptly
discharge any
         Liabilities of any mem-




<PAGE>

         ber of the NCR Group in accordance with their respective
terms, whether
         prior to or after the NCR Distribution Date or the date
hereof;

                  (b) the NCR Business (including any claim by any
creditor of
         AT&T UK Holdings Ltd. to the extent relating to the NCR
Business
         conducted by such entity), any Liability of any member of
the NCR Group
         or any NCR Covered Liability;

                  (c) any Asset (including contracts,  agreements,
real property
         and  leasehold  interests)  of any  member of the NCR
Group at any time
         (other than Assets transferred to any member of the AT&T
Services Group
         prior  to the NCR  Distribution  Date),  and any
contract,  agreement,
         letter of credit or other  commitment or obligation
listed on Schedule
         4.2 hereof;

                  (d) the  operation  of the NCR  Business,  as
conducted at any
         time prior to, on or after the NCR  Distribution  Date
(including  any
         Liability  relating  to,  arising out of or  resulting
from any act or
         failure  to  act  by  any  director,   officer,
employee,   agent  or
         representative  (whether  or not such act or  failure  to
act is or was
         within such Person's authority));

                          (e) any guarantee, indemnity,
                          representation, warranty or
         other  Liability of or made by any member of the AT&T
Services Group in
         respect of any Liability or alleged  Liability of any
member of the NCR
         Group;

                  (f) any  breach by NCR or any  member of the NCR
Group of this
         Agreement,  the Separation and  Distribution  Agreement,
any Ancillary
         Agreement or any of the NCR Ancillary Agreements;

                  (g) any  Liabilities  relating to, arising out
of or resulting
         from the NCR Business (including any NCR Covered
Liabilities) for which
         AT&T has agreed to indemnify and hold  harmless the
Lucent  Indemnitees
         pursuant  to  Section  5.3(a)  of  the   Separation
and   Distribution
         Agreement;

                  (h) actions taken by any member of the AT&T
Group on behalf of
         any member of the NCR Group pursuant to the Separation
and Distribution
         Agreement or any Ancillary Agreement;

                  (i) any untrue  statement  or alleged  untrue
statement  of a
         material fact or omission or alleged  omission to state a
material fact
         required  to be stated  therein  or  necessary  to make
the  statements
         therein not misleading,  with respect to all
information  contained in
         the NCR Information Statement or NCR Form 10; and

                  (j) any  Liability  relating  to,  arising out
of or resulting
         from any actual or threatened  Action or other claim
alleging that any
         Liability was  improperly  allocated to the NCR Group or
that any Asset
         was  improperly  withheld from the NCR Group,  in each
case pursuant to
         any of the Transaction Agreements.





<PAGE>

Nothing in this  Agreement  shall be deemed to amend or modify Section 5.3(c) of
the Separation and  Distribution  Agreement and the provisions of the Separation
and Distribution Agreement shall govern matters covered thereby.

                  4.3. INDEMNIFICATION BY AT&T. (a) AT&T shall indemnify, defend
and hold harmless NCR, each member of the NCR Group and each of their respective
directors, officers and employees, and each of the heirs, executors,  successors
and assigns of any of the foregoing (collectively, the "NCR Indemnitees"),  from
and against any and all Liabilities of the NCR Indemnitees  relating to, arising
out of or resulting from any of the following  items (without  duplication),  in
each case whether arising before, on or after the NCR Distribution Date:

                   (i) the failure of AT&T or any other member of
the AT&T Group
         or any other Person to pay, perform or otherwise promptly
discharge any
         Liabilities  of the AT&T  Services  Group whether prior
to or after the
         NCR Distribution Date or the date hereof;

                  (ii) the AT&T Services Business (including any
claim by any
         creditor of AT&T UK Holdings Ltd. to the extent relating
to the AT&T
         Services Business conducted by such entity) or any
Liability of the
         AT&T Services Group; and

                 (iii)  any  breach by AT&T or any  member of the
AT&T  Services
         Group of this Agreement, the Separation and Distribution
Agreement, any
         Ancillary Agreement or any of the NCR Ancillary
Agreements;

provided however that this Section 4.3 shall not apply to any
Liability relating
to the NCR Business.

                  4.4. INDEMNIFICATION OBLIGATIONS NET OF INSURANCE PROCEEDS AND
OTHER  AMOUNTS.   (a)  The  parties   intend  that  any  Liability   subject  to
indemnification  or  reimbursement  pursuant  to this  Article IV will be net of
Insurance   Proceeds  that  actually   reduce  the  amount  of  the   Liability.
Accordingly, the amount which any party (an "Indemnifying Party") is required to
pay to any Person entitled to  indemnification  hereunder (an "Indemnitee") will
be reduced by any Insurance  Proceeds  theretofore  actually  recovered by or on
behalf of the Indemnitee in reduction of the related Liability. If an Indemnitee
receives a payment (an "Indemnity  Payment")  required by this Agreement from an
Indemnifying  Party  in  respect  of any  Liability  and  subsequently  receives
Insurance  Proceeds,  then the Indemnitee will pay to the Indemnifying  Party an
amount equal to the excess of the Indemnity  Payment received over the amount of
the  Indemnity  Payment  that  would  have  been due if the  Insurance  Proceeds
recovery had been received,  realized or recovered before the Indemnity  Payment
was made.

                  (b) An insurer who would  otherwise  be  obligated  to pay any
claim shall not be  relieved  of the  responsibility  with  respect  thereto or,
solely by virtue of the indemnification  provisions hereof, have any subrogation
rights with respect  thereto,  it being expressly  understood and agreed that no
insurer or any other third party shall be entitled to a "windfall"





<PAGE>

(i.e.,  a benefit  they would not be  entitled  to receive in the absence of the
indemnification provisions) by virtue of the indemnification provisions hereof.

                  4.5. PROCEDURES FOR INDEMNIFICATION OF THIRD PARTY CLAIMS. (a)
If an Indemnitee  shall receive notice or otherwise  learn of the assertion by a
Person  (including any  Governmental  Authority) who is not a member of the AT&T
Services Group or the NCR Group of any claim or of the  commencement by any such
Person of any Action (collectively, a "Third Party Claim") with respect to which
an  Indemnifying  Party may be  obligated  to  provide  indemnification  to such
Indemnitee  pursuant  to  Section  4.2 or  4.3,  or any  other  Section  of this
Agreement  or any NCR  Ancillary  Agreement,  such  Indemnitee  shall  give such
Indemnifying Party written notice thereof within 20 days after becoming aware of
such Third Party Claim.  Any such notice shall describe the Third Party Claim in
reasonable detail.  Notwithstanding the foregoing, the failure of any Indemnitee
to give notice as provided in this Section  4.5(a) shall not relieve the related
Indemnifying  Party of its  obligations  under this  Article  IV,  except to the
extent that such  Indemnifying  Party is actually  prejudiced by such failure to
give notice.

                  (b) If the  Indemnitee  or any other  party to
this  Agreement
believes that the Third Party Claim is or may be a Shared
Contingent  Liability,
such  Indemnitee or other party may make a  Determination  Request in accordance
with the Separation and Distribution  Agreement at any time following any notice
given by the Indemnitee to an  Indemnifying  Party  pursuant to Section  4.5(a).
AT&T may make such a Determination Request at any time. Unless each of AT&T, NCR
and Lucent has acknowledged that the applicable Third Party Claim (including any
Third Party Claim set forth on Schedule 6.6 to the Separation  and  Distribution
Agreement) is not a Shared  Contingent  Liability or unless a  determination  to
such effect has been made in accordance  with the  Separation  and  Distribution
Agreement,  AT&T shall be entitled (but not  obligated) to assume the defense of
such Third Party Claim as if it were the Indemnifying  Party  hereunder.  In any
such  event,  AT&T  shall be  entitled  to  reimbursement  of all the  costs and
expenses (including  allocated costs of in-house counsel and other personnel) of
such  defense once a final  determination  or  acknowledgment  is made as to the
status of the Third Party Claim from the applicable  party or parties that would
have been  required  to pay such  amounts if the status of the Third Party Claim
had been  determined  immediately;  provided  that, if such Third Party Claim is
determined to be a Shared Contingent Liability, such costs and expenses shall be
shared  as  provided  in  Section  5.5(c)  of the  Separation  and  Distribution
Agreement.

                  (c) AT&T shall  assume the  defense of, and may seek to settle
or compromise,  any Third Party Claim that is a Shared Contingent Liability, and
the costs and expenses (including  allocated costs of in-house counsel and other
personnel)  thereof  shall be included in the  calculation  of the amount of the
applicable  Shared   Contingent   Liability  in  determining  the  reimbursement
obligations of the other parties with respect thereto pursuant to Section 6.4 of
the Separation and Distribution Agreement. Any Indemnitee in respect of a Shared
Contingent  Liability  shall have the right to employ  separate  counsel  and to
participate in (but not control) the defense, compromise, or settlement thereof,
but all  fees  and  expenses  of  such  counsel  shall  be the  expense  of such
Indemnitee.





<PAGE>

                  (d) Other than in the case of a Shared  Contingent  Liability,
an Indemnifying  Party may elect to defend (and,  unless the Indemnifying  Party
has specified any reservations or exceptions,  to seek to settle or compromise),
at such Indemnifying  Party's own expense and by such  Indemnifying  Party's own
counsel,  any Third Party Claim. Within 30 days after the receipt of notice from
an  Indemnitee in accordance  with Section  4.5(a) (or sooner,  if the nature of
such Third Party Claim so  requires),  the  Indemnifying  Party shall notify the
Indemnitee  of  its  election  whether  the   Indemnifying   Party  will  assume
responsibility  for  defending  such Third Party  Claim,  which  election  shall
specify any reservations or exceptions.  After notice from an Indemnifying Party
to an  Indemnitee  of its election to assume the defense of a Third Party Claim,
such  Indemnitee  shall  have  the  right  to  employ  separate  counsel  and to
participate in (but not control) the defense, compromise, or settlement thereof,
but the  fees  and  expenses  of  such  counsel  shall  be the  expense  of such
Indemnitee  except as set forth in the next sentence.  In the event that (i) the
Third Party Claim is not a Shared Contingent Liability and (ii) the Indemnifying
Party has  elected  to assume  the  defense  of the  Third  Party  Claim but has
specified,  and  continues to assert,  any  reservations  or  exceptions in such
notice, then, in any such case, the reasonable fees and expenses of one separate
counsel for all Indemnitees shall be borne by the Indemnifying Party.

                  (e) Other than in the case of a Shared  Contingent  Liability,
if an  Indemnifying  Party elects not to assume  responsibility  for defending a
Third Party Claim,  or fails to notify an Indemnitee of its election as provided
in Section 4.5(d), such Indemnitee may defend such Third Party Claim at the cost
and expense (including  allocated costs of in-house counsel and other personnel)
of the Indemnifying Party.

                  (f)  Unless  the  Indemnifying  Party has failed to assume the
defense of the Third Party Claim in accordance with the terms of this Agreement,
no  Indemnitee  may settle or  compromise  any Third  Party  Claim that is not a
Shared Contingent  Liability  without the consent of the Indemnifying  Party. No
Indemnitee  may  settle or  compromise  any Third  Party  Claim that is a Shared
Contingent Liability without the consent of AT&T.

                  (g) In the case of a Third  Party  Claim  that is not a Shared
Contingent  Liability,  no  Indemnifying  Party  shall  consent  to entry of any
judgment  or enter into any  settlement  of the Third  Party  Claim  without the
consent of the  Indemnitee  if the effect  thereof is to permit any  injunction,
declaratory  judgment,  other order or other  nonmonetary  relief to be entered,
directly or  indirectly,  against any  Indemnitee.  In the case of a Third Party
Claim that is a Shared Contingent Liability,  AT&T shall not consent to entry of
any judgment or enter into any  settlement  of the Third Party Claim without the
consent of the  Indemnitee  if the effect  thereof is to permit any  injunction,
declaratory  judgment,  other order or other  nonmonetary  relief to be entered,
directly or indirectly, against any Indemnitee.

                  (h) The  provisions  of Section  4.5 and Section 4.6 shall not
apply to Taxes (which are covered by the Tax Sharing Agreement).

                  4.6. ADDITIONAL MATTERS. (a) Any claim on
account of a
Liability which does not result from a Third Party Claim shall be
asserted by
written notice given by the Indemnitee to the related Indemnifying
Party. Such
Indemnifying Party shall have a period




<PAGE>

of 30 days after the receipt of such notice within which to respond thereto.  If
such  Indemnifying  Party does not  respond  within  such  30-day  period,  such
Indemnifying  Party shall be deemed to have refused to accept  responsibility to
make payment.  If such  Indemnifying  Party does not respond  within such 30-day
period or rejects such claim in whole or in part, such Indemnitee  shall be free
to pursue such remedies as may be available to such party as contemplated by any
Transaction Agreement.

                  (b)  In  the  event  of   payment  by  or  on  behalf  of  any
Indemnifying  Party to any Indemnitee in connection  with any Third Party Claim,
such  Indemnifying  Party shall be subrogated to and shall stand in the place of
such  Indemnitee  as to any  events or  circumstances  in  respect of which such
Indemnitee  may have any right,  defense or claim  relating  to such Third Party
Claim  against any  claimant or  plaintiff  asserting  such Third Party Claim or
against any other person. Such Indemnitee shall cooperate with such Indemnifying
Party in a reasonable manner,  and at the cost and expense (including  allocated
costs of in-house  counsel and other personnel) of such  Indemnifying  Party, in
prosecuting any subrogated right, defense or claim; provided, however, that AT&T
shall be entitled to control the prosecution of any such right, defense or claim
in respect of any Shared Contingent Liability.

                  (c) In the event of an Action in which the Indemnifying  Party
is not a named defendant,  if either the Indemnified Party or Indemnifying Party
shall so request,  the parties  shall  endeavor to substitute  the  Indemnifying
Party for the named defendant or, in the case of a Shared Contingent  Liability,
add the Indemnifying Party as a named defendant, if at all practicable.  If such
substitution  or addition cannot be achieved for any reason or is not requested,
the named defendant shall allow the  Indemnifying  Party to manage the Action as
set forth in this  Section  and,  subject to Section 6.4 of the  Separation  and
Distribution  Agreement  with  respect  to Shared  Contingent  Liabilities,  the
Indemnifying  Party shall fully indemnify the named defendant  against all costs
of defending the Action  (including court costs,  sanctions  imposed by a court,
attorneys'  fees,  experts'  fees  and  all  other  external  expenses,  and the
allocated  costs of  in-house  counsel  and other  personnel),  the costs of any
judgment or  settlement,  and the cost of any interest or penalties  relating to
any judgment or settlement.

                  4.7.  REMEDIES  CUMULATIVE.  The  remedies  provided  in  this
Article IV shall be cumulative  and,  subject to the provisions of Article IX of
the Separation and Distribution  Agreement,  shall not preclude assertion by any
Indemnitee  of any other  rights or the  seeking  of any and all other  remedies
against any Indemnifying Party.

                  4.8. SURVIVAL OF INDEMNITIES. The rights and
obligations of
each of AT&T and NCR and their respective Indemnitees under this
Article IV
shall  survive  the  sale or  other  transfer  by any  party  of any  Assets  or
businesses or the assignment by it of any Liabilities.

                  4.9. RELATIONSHIP TO SEPARATION AND DISTRIBUTION
AGREEMENT
DISPUTE RESOLUTION PROCEDURES. (a) Each of NCR and AT&T agrees
that the
procedures for discussion, negotiation and arbitration set forth
in Article IX
of the Separation and Distribution Agreement (which are hereby
incorporated
herein by reference) shall apply to all dis-




<PAGE>

putes, controversies or claims (whether sounding in contract, tort or otherwise)
that may arise out of or relate to, or arise  under or in  connection  with this
Agreement or, except as otherwise expressly provided therein,  any NCR Ancillary
Agreement (as if each of this Agreement and each of the NCR Ancillary Agreements
were an Ancillary Agreement), or the transactions contemplated hereby or thereby
(including  all actions taken in furtherance  of the  transactions  contemplated
hereby or thereby on or prior to the date hereof), or the commercial or economic
relationship  of the parties  relating  hereto or thereto,  between or among any
member of the AT&T Services Group and the NCR Group.

                  (b) Each party  agrees on behalf of itself and each  member of
its  respective  Group that the procedures set forth in such Article IX shall be
the sole and exclusive  remedy in connection  with any dispute,  controversy  or
claim relating to any of the foregoing matters and irrevocably  waives any right
to  commence  any  Action in or before  any  Governmental  Authority,  except as
expressly provided in Sections 9.7(b) and 9.8 of the Separation and Distribution
Agreement and except to the extent  provided  under the  Arbitration  Act in the
case of judicial review of arbitration  results or awards.  Each party on behalf
of itself and each member of its respective Group  irrevocably  waives any right
to any trial by jury with respect to any claim, controversy or dispute set forth
in  the  first  sentence  of  Section  9.1 of the  Separation  and  Distribution
Agreement.

                  (c) Without limiting the foregoing, each of the parties agrees
on behalf of itself and each member of its Group that if an  Arbitration  Demand
Notice with respect to a dispute, controversy or claim is not given prior to the
expiration of the Applicable  Deadline,  as between or among the parties and the
members of their Groups, such dispute, controversy or claim will be barred.

                  (d) Subject to Sections  9.7(d) and 9.8 of the  Separation and
Distribution  Agreement,  upon delivery of an Arbitration Demand Notice pursuant
to Section  9.3(a) of the  Separation and  Distribution  Agreement  prior to the
Applicable  Deadline,  the dispute,  controversy  or claim shall be decided by a
sole  arbitrator  in  accordance  with the rules set forth in  Article IX of the
Separation and Distribution Agreement.

                  (e) The  interpretation  of the provisions of this Section 4.9
and  Article IX of the  Separation  and  Distribution  Agreement  (to the extent
incorporated herein by reference),  only insofar as they relate to the agreement
to  arbitrate  and any  procedures  pursuant  thereto,  shall be governed by the
Arbitration Act and other  applicable  federal law. In all other  respects,  the
interpretation of this Agreement shall be governed as set forth in Section 8.2.


                                    ARTICLE V
                  INTERIM OPERATIONS AND CERTAIN OTHER MATTERS


                  5.1. CERTAIN TAX MATTERS. Notwithstanding any
other provision
of this Agreement, the Tax Sharing Agreement or any other
Transaction Agreement,
in the case of any Adjustment comprising a Restructuring
Adjustment that relates
to the NCR Distribution




<PAGE>

and arises as a result of the acquisition of all or a portion of the NCR capital
stock of any class or series and/or of its assets by any means whatsoever by any
Person other than an Affiliate of NCR following such NCR Distribution, NCR shall
indemnify,  defend  and  hold  harmless  AT&T  from  and  against  any  and  all
Liabilities  of  AT&T  relating  to,  arising  out  of or  resulting  from  such
Adjustment.

                  5.2. AGREEMENT FOR EXCHANGE OF INFORMATION;
ARCHIVES. Each of
AT&T and NCR agrees that the  provisions of Article VIII of the
Separation  and
Distribution  Agreement shall continue to apply after the NCR
Distribution Date;
provided however, that as between the members of NCR Group, on the one hand, and
the AT&T  Services  Group,  on the  other  hand,  the  reference  to "the  third
anniversary   of  the  date  hereof"  in  Section  8.2  of  the  Separation  and
Distribution  Agreement shall be deemed to be the third  anniversary of the date
of this  Agreement.  Without  limiting the foregoing,  (a) NCR shall maintain in
effect at its own cost and expense  adequate  systems and controls to the extent
necessary  to enable the members of the AT&T Group to satisfy  their  respective
reporting,  accounting,  audit and other obligations, and (b) NCR shall provide,
or cause to be  provided,  to AT&T in such  form as AT&T  shall  request,  at no
charge to AT&T, all financial and other data and  information as AT&T determines
necessary or advisable in order to prepare AT&T financial statements and reports
or filings with any Governmental Authority.



                                   ARTICLE VI
                   FURTHER ASSURANCES AND ADDITIONAL COVENANTS

                  6.1.  FURTHER  ASSURANCES.  (a) In  addition  to  the  actions
specifically  provided  for  elsewhere  in this  Agreement,  each of the parties
hereto shall use its  reasonable  best  efforts,  prior to, on and after the NCR
Distribution  Date,  to take, or cause to be taken,  all actions,  and to do, or
cause to be done, all things,  reasonably  necessary,  proper or advisable under
applicable laws, regulations and agreements to consummate and make effective the
transactions contemplated by this Agreement and the NCR Ancillary Agreements.

                  (b) Without limiting the foregoing, prior to, on and after the
NCR Distribution Date, each party hereto shall cooperate with the other parties,
and  without  any further  consideration,  but at the expense of the  requesting
party, to execute and deliver, or use its reasonable best efforts to cause to be
executed and delivered,  all instruments,  including  instruments of conveyance,
assignment  and  transfer,  and to make all  filings  with,  and to  obtain  all
consents,  approvals or  authorizations  of, any  Governmental  Authority or any
other Person under any permit, license, agreement, indenture or other instrument
(including any Consents or Governmental  Approvals),  and to take all such other
actions as such party may  reasonably  be  requested  to take by any other party
hereto from time to time,  consistent  with the terms of this  Agreement and the
NCR Ancillary Agreements,  in order to effectuate the provisions and purposes of
this  Agreement  and the NCR  Ancillary  Agreements  and the other  transactions
contemplated  hereby and thereby.  Without  limiting the  foregoing,  each party
will, at the reasonable request,  cost and expense of any other party, take such
other actions as may be





<PAGE>

reasonably necessary to vest in such other party good and marketable title, free
and clear of any Security Interest, if and to the extent it is practicable to do
so.

                  (c) Each of AT&T and NCR, at the  request of the other,  shall
use its  reasonable  best  efforts to obtain,  or to cause to be  obtained,  any
consent, substitution,  approval or amendment required to novate (including with
respect to any federal  government  contract)  or assign all  obligations  under
agreements,  leases, licenses and other obligations or Liabilities of any nature
whatsoever  that  constitute  Liabilities of the NCR Group or  Liabilities  that
relate to the NCR Group,  or to obtain in writing the  unconditional  release of
all  parties to such  arrangements  other  than any member of the NCR Group,  so
that, in any such case, NCR and its Subsidiaries will be solely  responsible for
such  Liabilities;  provided,  however,  that  neither  AT&T  nor NCR  shall  be
obligated  to pay any  consideration  therefor to any third party from whom such
consents, approvals, substitutions, amendments and releases are requested.

                  (d) If AT&T or NCR is  unable  to  obtain,  or to  cause to be
obtained,  any  such  required  consent,  approval,  release,   substitution  or
amendment, the applicable member of the AT&T Services Group shall continue to be
bound by such agreements, leases, licenses and other obligations and, unless not
permitted by law or the terms thereof,  NCR shall, as agent or subcontractor for
AT&T or such other Person,  as the case may be, pay, perform and discharge fully
all the  obligations or other  Liabilities of AT&T or such other Person,  as the
case may be, thereunder from and after the date hereof. NCR shall indemnify each
AT&T Indemnitee,  and hold each of them harmless against any Liabilities arising
in connection therewith.

                  (e) On or prior to the Closing  Date,  AT&T and NCR shall take
all actions as may be  necessary  to approve the  stock-based  employee  benefit
plans of NCR in order to  satisfy  the  requirements  of Rule  16b-3  under  the
Exchange Act and Section 162(m) of the Code.

                  (f) The parties  hereto agree to take any  reasonable  actions
necessary  in  order  for  the  NCR   Distribution  to  qualify  as  a  tax-free
distribution pursuant to Section 355 of the Code.

                  6.2. QUALIFICATION AS TAX-FREE DISTRIBUTION. (a) After the NCR
Distribution  Date,  none of AT&T or NCR shall take, or permit any member of its
respective  Group to take,  any action  which  could  reasonably  be expected to
prevent the NCR Distribution from qualifying as a tax-free  distribution  within
the meaning of Section 355 of the Code or any other transaction  contemplated by
this  Agreement  or any other  Transaction  Agreement  which is  intended by the
parties to be tax-free from failing so to qualify.

                  (b) After the NCR Distribution  Date, NCR shall not, nor cause
or  permit,  any  member of the NCR Group to take any  action or enter  into any
transaction  which could  reasonably be expected to materially  adversely impact
the reasonably  expected tax  consequences to AT&T which are known to NCR of any
transaction  contemplated  by  this  Agreement  or  any  Transaction  Agreement;
provided,  however,  nothing in this section shall  prohibit NCR from taking any
action, or entering into any transaction (or permitting or causing any member of
the NCR Group so to act or enter) in the  ordinary  course of business or in the
ordinary course of business dealing, or in connection with the settlement of any
audit issue or in  connection  with the filing of any tax return.  After the NCR
Distribution  Date, AT&T shall not, nor cause or permit,  any member of the AT&T
Group to take any action or enter into any transaction which could reasonably be
expected to materially  adversely  impact the expected tax  consequences  to NCR
which are known to AT&T of any transaction contemplated by this Agreement or any
Transaction Agreement; provided, however, nothing in this section shall prohibit
AT&T from taking any action,  or entering into any transaction (or permitting or
causing any member of the AT&T Group so to act or enter), in the ordinary course
of business or in the ordinary course of business dealing, or in connection with
the  settlement of any audit issue or in  connection  with the filing of any tax
return.


                                   ARTICLE VII
                                   TERMINATION



<PAGE>

                  7.1. TERMINATION. This Agreement may be
terminated at any time
prior to the NCR Distribution Date by AT&T.

                  7.2. EFFECT OF TERMINATION. In the event of any
termination of
this Agreement, no party to this Agreement (or any of its
directors or officers)
shall have any Liability or further obligation to any other party.



                                  ARTICLE VIII
                                  MISCELLANEOUS

                  8.1. COUNTERPARTS; ENTIRE AGREEMENT; CORPORATE POWER. (a) This
Agreement  and each  NCR  Ancillary  Agreement  may be  executed  in one or more
counterparts,  all of which shall be considered one and the same agreement,  and
shall become effective when one or more counterparts have been signed by each of
the parties and delivered to the other party.

                  (b) This Agreement, the Separation and Distribution Agreement,
the  Ancillary  Agreements  and the NCR Ancillary  Agreements  and the Exhibits,
Schedules and Appendices hereto and thereto contain the entire agreement between
the parties with respect to the subject  matter  hereof,  supersede all previous
agreements, negotiations, discussions, writings, understandings, commitments and
conversations with respect to such subject matter and there are no agreements or
understandings  between  the  parties  other than those set forth or referred to
herein or therein.

                  (c) AT&T  represents on behalf of itself and each other member
of the AT&T  Services  Group,  and NCR  represents  on behalf of itself and each
other member of the NCR Group as follows:

                   (i) each such  Person has the  requisite
corporate  or other
         power  and  authority  and has  taken  all  corporate  or
other  action
         necessary  in  order  to  execute,  deliver  and
perform  each of this
         Agreement  and each  other NCR  Ancillary  Agreements  to
which it is a
         party  and to  consummate  the  transactions
contemplated  hereby  and
         thereby; and

                  (ii) this Agreement and each NCR Ancillary
Agreement to which
         it  is a  party  has  been  duly  executed  and
delivered  by  it  and
         constitutes  a  valid  and  binding  agreement  of  it
enforceable  in
         accordance with the terms thereof.

                  (d) Notwithstanding any provision of this Agreement or any NCR
Ancillary Agreement,  AT&T shall not be required to take or omit to take any act
that would violate its fiduciary duties to any minority  stockholders of Lucent,
AT&T Capital  Corporation or any other  non-wholly  owned Subsidiary of AT&T (it
being understood that directors'  qualifying shares or similar interests will be
disregarded for purposes of determining whether a Subsidiary is wholly owned).




<PAGE>

                  8.2.  GOVERNING  LAW. This  Agreement  and,  unless  expressly
provided  therein,  each  NCR  Ancillary  Agreement,  shall be  governed  by and
construed and  interpreted in accordance  with the laws of the State of New York
(other than as to its laws of  arbitration  which  shall be  governed  under the
Arbitration Act or other  applicable  federal law pursuant to Section 4.9 hereof
and Section 9.10 of the Separation and Distribution Agreement),  irrespective of
the  choice of laws  principles  of the State of New  York,  as to all  matters,
including matters of validity, construction, effect, enforceability, performance
and remedies.

                  8.3.  ASSIGNABILITY.  (a)  Except  as set  forth  in  any  NCR
Ancillary  Agreement,  this Agreement and each NCR Ancillary  Agreement shall be
binding  upon and  inure to the  benefit  of the  parties  hereto  and  thereto,
respectively,  and their respective successors and assigns;  provided,  however,
that no party hereto or thereto may assign its respective rights or delegate its
respective  obligations  under this  Agreement  or any NCR  Ancillary  Agreement
without  the  express  prior  written  consent  of the other  parties  hereto or
thereto.

                  8.4. THIRD PARTY BENEFICIARIES. Except for the
indemnification
rights under this  Agreement of any AT&T  Indemnitee or NCR
Indemnitee in their
respective capacities as such, (a) the provisions of this
Agreement and each NCR
Ancillary  Agreement  are solely  for the  benefit  of the  parties  and are not
intended  to confer  upon any Person  except the  parties any rights or remedies
hereunder,  and (b) there are no third party  beneficiaries of this Agreement or
any NCR  Ancillary  Agreement  and neither this  Agreement nor any NCR Ancillary
Agreement  shall  provide any third  person with any remedy,  claim,  liability,
reimbursement,  claim of  action  or other  right in  excess  of those  existing
without reference to this Agreement or any NCR Ancillary Agreement.

                  8.5. NOTICES.  All notices or other  communications under this
Agreement or any NCR Ancillary Agreement shall be in writing and shall be deemed
to be duly given when (a)  delivered  in person or (b)  deposited  in the United
States mail or private express mail, postage prepaid, addressed as follows:

         If to AT&T, to:   AT&T Corp.
                           131 Morristown Road
                           Basking Ridge, NJ 07920
                           Attn.: Vice President-Law and
                                  Corporate Secretary

         If to NCR, to:    NCR Corporation
                           1700 S. Patterson Blvd.
                               Dayton, Ohio 45479
                           Attn.: Chief Financial Officer

         with a copy to:   NCR Corporation
                           1700 S. Patterson Blvd.
                               Dayton, Ohio 45479
                           Attn.: General Counsel




<PAGE>

Any party may,  by notice to the other  party,  change the address to which such
notices are to be given.

                  8.6.  SEVERABILITY.  If any provision of this Agreement or any
NCR Ancillary Agreement or the application thereof to any Person or circumstance
is  determined  by a court of  competent  jurisdiction  to be  invalid,  void or
unenforceable, the remaining provisions hereof or thereof, or the application of
such provision to Persons or circumstances or in jurisdictions  other than those
as to which it has been held  invalid  or  unenforceable,  shall  remain in full
force  and  effect  and shall in no way be  affected,  impaired  or  invalidated
thereby,  so  long  as the  economic  or  legal  substance  of the  transactions
contemplated  hereby  or  thereby,  as the case may be, is not  affected  in any
manner  adverse  to any  party.  Upon  such  determination,  the  parties  shall
negotiate in good faith in an effort to agree upon such a suitable and equitable
provision to effect the original intent of the parties.

                  8.7.  FORCE  MAJEURE.  No party  shall be deemed in default of
this  Agreement or any NCR  Ancillary  Agreement to the extent that any delay or
failure in the  performance of its  obligations  under this Agreement or any NCR
Ancillary  Agreement  results from any cause beyond its  reasonable  control and
without its fault or negligence,  such as acts of God, acts of civil or military
authority, embargoes,  epidemics, war, riots, insurrections,  fires, explosions,
earthquakes,  floods,  unusually  severe weather  conditions,  labor problems or
unavailability  of parts,  or, in the case of computer  systems,  any failure in
electrical  or air  conditioning  equipment.  In the  event of any such  excused
delay, the time for performance shall be extended for a period equal to the time
lost by reason of the delay.

                  8.8.  PUBLICITY.  Prior to the NCR Distribution  Date, each of
NCR and AT&T shall  consult with each other prior to issuing any press  releases
or  otherwise  making  public  statements  with  respect to the IPO,  the Lucent
Distribution, the NCR Distribution or any of the other transactions contemplated
hereby and prior to making any  filings  with any  Governmental  Authority  with
respect thereto.

                  8.9. EXPENSES. Except as expressly set forth in this Agreement
or in any NCR  Ancillary  Agreement,  whether  or not the  NCR  Distribution  is
consummated,  all third party fees, costs and expenses paid or incurred prior to
the NCR Distribution  Date in connection with the NCR Distribution  will be paid
by AT&T;  provided  however that NCR shall  consult with AT&T prior to incurring
any such third party obligations.

                  8.10. HEADINGS. The article, section and
paragraph headings
contained in this Agreement and in the NCR Ancillary Agreements
are for
reference purposes only and shall not affect in any way the
meaning or
interpretation of this Agreement or any NCR Ancillary Agreement.

                  8.11. SURVIVAL OF COVENANTS. Except as expressly
set forth in
any NCR Ancillary Agreement, the covenants, representations and
warranties
contained in this Agreement and each NCR Ancillary Agreement, and
liability for
the breach of any obligations





<PAGE>

contained  herein,  shall survive the NCR  Distribution and shall remain in full
force and effect following the consummation of the NCR Distribution.

                  8.12.  WAIVERS OF DEFAULT.  Waiver by any party of any default
by the other  party of any  provision  of this  Agreement  or any NCR  Ancillary
Agreement shall not be deemed a waiver by the waiving party of any subsequent or
other default, nor shall it prejudice the rights of the other party.

                  8.13.  AMENDMENTS.  No provisions of this Agreement or any NCR
Ancillary Agreement shall be deemed waived, amended, supplemented or modified by
any party,  unless such waiver,  amendment,  supplement  or  modification  is in
writing and signed by the authorized representative of the party against whom it
is sought to enforce such waiver, amendment, supplement or modification.

                  8.14.  INTERPRETATION.  Words in the singular shall be held to
include  the  plural  and vice  versa and words of one  gender  shall be held to
include the other genders as the context requires. The terms "hereof," "herein,"
and "herewith" and words of similar import shall,  unless otherwise  stated,  be
construed to refer to this Agreement (or the applicable NCR Ancillary Agreement)
as a whole (including all of the Schedules,  Exhibits and Appendices  hereto and
thereto)  and not to any  particular  provision of this  Agreement  (or such NCR
Ancillary  Agreement).   Article,   Section,   Exhibit,  Schedule  and  Appendix
references are to the Articles,  Sections, Exhibits, Schedules and Appendices to
this  Agreement (or the  applicable NCR Ancillary  Agreement)  unless  otherwise
specified.  The word  "including"  and words of similar import when used in this
Agreement (or the applicable  NCR Ancillary  Agreement)  shall mean  "including,
without  limitation,"  unless the context otherwise requires or unless otherwise
specified.  The word  "or"  shall not be  exclusive.  For all  purposes  of this
Agreement,  "allocated  costs of in-house  counsel and other personnel" shall be
determined in accordance  with the principles set forth in Schedule 12.15 to the
Separation and Distribution Agreement.





TNESS  WHEREOF,  the  parties  have  caused this  Distribution  Agreement  to be
executed by their duly authorized representatives.

                                        AT&T CORP.




                                       By:
                                      Name:
                                     Title:




                                        NCR CORPORATION




                                       By:
                                      Name:
                                     Title:

</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-10
<SEQUENCE>5
<DESCRIPTION>EXHIBIT (10)(I)3
<TEXT>


                              TAX SHARING AGREEMENT

                                  BY AND AMONG

                                   AT&T CORP.,

                            LUCENT TECHNOLOGIES INC.

                                       AND

                                 NCR CORPORATION


                                   DATED AS OF
                                FEBRUARY 1, 1996
                 AND AMENDED AND RESTATED AS OF MARCH 29, 1996



<PAGE>

                                TABLE OF CONTENTS

ARTICLE I  DEFINITIONS

   1.1
ADJUSTMENT...................................................  1
   1.2.
AGREEMENT....................................................  1
   1.3.  AT&T TAX
ADJUSTMENT..........................................  2
   1.4.  AT&T TAX
BENEFIT.............................................  2
   1.5.
CONSOLIDATION................................................  2
   1.6.  CONSOLIDATED
RETURN..........................................  2
   1.7.  CONTROLLING
PARTY............................................  2
   1.8.  CORRELATIVE
ADJUSTMENT.......................................  2
   1.9.  DISPUTED
ADJUSTMENT..........................................  3
   1.10. FINAL
DETERMINATION..........................................  3
   1.11. INDEPENDENT THIRD
PARTY......................................  3
   1.12. INDEMNIFIED
PARTY............................................  4
   1.13. INDEMNIFYING
PARTY...........................................  4
   1.14. INITIAL
DETERMINATION........................................  4
   1.15. INTERESTED
PARTY.............................................  4
   1.16. INTERESTED PARTY
NOTICE......................................  4
   1.17. NCR TAX
ADJUSTMENT...........................................  4
   1.18. NCR TAX
BENEFIT..............................................  4
   1.19. LUCENT TAX
ADJUSTMENT........................................  5
   1.20. LUCENT TAX
BENEFIT...........................................  5
   1.21. NON-LINE OF BUSINESS
ADJUSTMENT..............................  5
   1.22. RESTRUCTURING
ADJUSTMENT.....................................  5
   1.23.
RETURN.......................................................  5
   1.24. SEPARATE
RETURN..............................................  6
   1.25. SEPARATION
AGREEMENT.........................................  6
   1.26. SIGNIFICANT
OBLIGATION.......................................  6
   1.27.
TAX..........................................................  6
   1.28. TAX
ADJUSTMENTS..............................................  6
   1.29. TAX
BENEFITS.................................................  6
   1.30. TAX
CONTEST..................................................  6
   1.31. TAXING
AUTHORITY.............................................  7
   1.32. ULTIMATE
DETERMINATION.......................................  7




<PAGE>

 ARTICLE II  TAX ADJUSTMENTS/BENEFITS


  2.1. IN
GENERAL....................................................  7
  2.2. TAX ADJUSTMENTS AND
BENEFITS..................................  8
  2.3. RESTRUCTURING
ADJUSTMENTS.....................................  9
  2.4. NON-LINE OF BUSINESS
ADJUSTMENTS.............................. 11

ARTICLE III TAX CONTESTS

  3.1. NOTIFICATION OF TAX
CONTESTS.................................. 14
  3.2. TAX CONTEST SETTLEMENT
RIGHTS................................. 14
  3.3. TAX CONTEST
PARTICIPATION..................................... 15
  3.4. TAX CONTEST
WAIVER............................................ 16
  3.5. TAX CONTEST DISPUTE
RESOLUTION................................ 17

ARTICLE IV  PROCEDURE AND PAYMENT

  4.1.
PROCEDURE..................................................... 20
  4.2.
PAYMENT....................................................... 21
  4.3.
INTEREST...................................................... 21

ARTICLE V  OTHER TAX MATTERS

  5.1. TAX POLICIES AND PROCEDURES DURING CONSOLIDATION
 ............. 22
  5.2.
COOPERATION................................................... 23
  5.3. FILING OF
RETURNS............................................. 23

ARTICLE VI  MISCELLANEOUS

  6.1. GOVERNING
LAW................................................. 24
  6.2.
AFFILIATES.................................................... 24
  6.3. INCORPORATION OF SEPARATION AGREEMENT PROVISIONS
 ............. 24
  6.4.
NOTICES....................................................... 24
  6.5. CONFLICTING OR INCONSISTENT
PROVISIONS........................ 25
  6.6.
DURATION...................................................... 25
  6.7.
AMENDMENT..................................................... 25
  6.8. TAX ALLOCATION
AGREEMENTS..................................... 26




<PAGE>

                              TAX SHARING AGREEMENT

                  THIS TAX SHARING  AGREEMENT,  dated as of February 1, 1996, is
by and among AT&T, Lucent and NCR.  Capitalized terms used herein shall have the
respective  meanings  assigned  to  them  in  the  Separation  Agreement  unless
otherwise defined in Article I hereof.

                  WHEREAS,  AT&T,  Lucent and NCR have  executed the  Separation
Agreement  pursuant to which AT&T's  existing  businesses will be separated into
three independent businesses; and

                  WHEREAS,  it is  appropriate  and  desirable  to set forth the
principles  and  responsibilities  of the  parties to this  Agreement  regarding
future  Adjustments  with respect to Taxes,  Tax Contests and other  related Tax
matters.

                  NOW,  THEREFORE,  the parties,  intending to be
legally bound,
agree as follows:

                                    ARTICLE I
                                   DEFINITIONS

                  For the purpose of this  Agreement the  following  terms shall
have the following meanings:

                  1.1.  ADJUSTMENT  means the deemed  increase  or
decrease in a
Tax,  determined on an  issue-by-issue or
transaction-by-transaction  basis, as
appropriate, and using the assumptions set forth in the next sentence, resulting
from an adjustment  made or proposed by a Taxing  Authority  with respect to any
amount reflected or required to be reflected on any Return relating to such Tax.
For  purposes  of  determining  such deemed  increase or decrease in a Tax,  the
following  assumptions  will be used:  (a) in the case of any  income  Tax,  the
highest  marginal  Tax  rate or,  in the  case of any  other  Tax,  the  highest
applicable  Tax rate,  in each case in effect  with  respect to that Tax for the
Taxable  period or any  portion of the  Taxable  period to which the  adjustment
relates;  and (b) such determination shall be made without regard to whether any
actual increase or decrease in such Tax will in fact be realized with respect to
the Return to which such adjustment relates.

                  1.2. AGREEMENT means this Tax Sharing Agreement,
including any
schedules, exhibits and appendices attached hereto.


<PAGE>

                  1.3. AT&T TAX  ADJUSTMENT  means,  with respect to any Taxable
period or portion of a Taxable period,  and as computed  separately with respect
to each  Tax,  the  net  increase  in  each  such  Tax  equal  to the sum of all
Adjustments made pursuant to a Final Determination with respect to each such Tax
for each such  Taxable  period or portion of a Taxable  period  that are clearly
attributable  to  the  AT&T  Services  Business;  provided,  however,  that  any
Adjustment  comprising a  Restructuring  Adjustment  shall not be  considered in
determining the amount of any AT&T Tax Adjustment.

                  1.4.  AT&T TAX  BENEFIT  means,  with  respect to any  Taxable
period or portion of a Taxable period,  and as computed  separately with respect
to each  Tax,  the  net  decrease  in  each  such  Tax  equal  to the sum of all
Adjustments made pursuant to a Final Determination with respect to each such Tax
for each such  Taxable  period or portion of a Taxable  period  that are clearly
attributable  to  the  AT&T  Services  Business;  provided,  however,  that  any
Adjustment  comprising a  Restructuring  Adjustment  shall not be  considered in
determining the amount of any AT&T Tax Benefit.

                  1.5.  CONSOLIDATION means, as appropriate,  any Taxable period
or any portion of a Taxable  period  during which (a) one or more members of the
Lucent  Group are  members of an AT&T  Consolidated  Return;  or (b) one or more
members of the NCR Group are members of an AT&T Consolidated Return.

                  1.6.  CONSOLIDATED  RETURN means, as appropriate,  (a) for any
Taxable  period or any portion of a Taxable period ending or deemed to end on or
prior to the  Distribution  Date,  any  consolidated  or  combined  Return  that
includes one or more members of the AT&T Group and/or one or more members of the
Lucent  Group;  and (b) for any  Taxable  period,  or any  portion  of a Taxable
period,  beginning or deemed to begin after the Distribution  Date and ending or
deemed to end on or prior to the date of the NCR Distribution,  any consolidated
or combined  Return that includes one or more members of the AT&T Services Group
and/or one or more members of the NCR Group.

                  1.7.  CONTROLLING  PARTY means AT&T or any other member of the
AT&T  Services  Group,  Lucent or any other member of the Lucent Group or NCR or
any other member of the NCR Group, as the case may be, that filed or, if no such
Return has been filed, was required to file, a Return that is the subject of any
Tax Contest,  or any successor and/or assign of any of the foregoing;  provided,
however,  that in the case of any Consolidated  Return, the Person that actually
filed such  Consolidated  Return (or any successor and/or assign of such Person)
will be the Controlling Party.

                  1.8.   CORRELATIVE   ADJUSTMENT  means,  in  the  case  of  an
Adjustment comprising either a Restructuring  Adjustment or Non-Line of Business
Adjustment,  the net present value of any future increases or decreases in a Tax
that would be realized,



<PAGE>

using the  assumptions  set forth in the next  sentence,  by either  AT&T or any
other  member of the AT&T  Services  Group,  Lucent  or any other  member of the
Lucent Group or NCR or any other member of the NCR Group, as the case may be, in
one or more  Taxable  periods (or any  portion of a Taxable  period) but only if
such  increases or decreases (a) will take effect or begin to take effect in the
Taxable period or portion of a Taxable period immediately  following the Taxable
period or portion of a Taxable period in which the  Restructuring  Adjustment or
Non-Line  of  Business  Adjustment  to such Tax was  made;  and (b) are a direct
result of such an Adjustment to that Tax in the  immediately  preceding  Taxable
period or portion of such Taxable  period.  For purposes of determining  the net
present value of any such future  increases or decreases in a Tax, the following
assumptions will be used: (i) a discount rate equal to the sum of the Prime Rate
as of the  date  of the  Final  Determination  relating  to  such  Restructuring
Adjustment or Non-Line of Business Adjustment plus 3.5%; (ii) in the case of any
income Tax, the highest  marginal Tax rate or, in the case of any other Tax, the
highest applicable Tax rate, in each case in effect with respect to that Tax for
the Taxable period, or portion of the Taxable period, in which the Restructuring
Adjustment or Non-Line of Business  Adjustment was made; (iii) the depreciation,
amortization or credit rate or lives,  if applicable,  in effect for the Taxable
period, or portion of the Taxable period, in which the Restructuring  Adjustment
or Non- Line of Business  Adjustment was made; and (iv) such determination shall
be made without regard to whether any actual  increases or decreases in such Tax
will in fact be  realized  with  respect  to the  future  Returns  to which such
Correlative Adjustment relates.

                  1.9. DISPUTED ADJUSTMENT has the meaning set
forth in Section
3.4(b) hereof.

                  1.10.  FINAL  DETERMINATION  means (a) a  decision,  judgment,
decree or other order by any court of competent  jurisdiction,  which has become
final and is either no longer subject to appeal or for which a determination not
to appeal has been made; (b) a closing  agreement made under Section 7121 of the
Code or any comparable foreign, state, local, municipal or other Taxing statute;
(c) a final  disposition by any Taxing  Authority of a claim for refund;  or (d)
any other  written  agreement  relating  to an  Adjustment  between  any  Taxing
Authority  and any  Controlling  Party  the  execution  of which  is  final  and
prohibits  such  Taxing  Authority  or the  Controlling  Party from  seeking any
further legal or administrative remedies with respect to such Adjustment.

                  1.11.  INDEPENDENT  THIRD PARTY means a
nationally  recognized
law firm or any of the following  accounting firms or their
successors:  Arthur
Andersen  & Co.;  Ernst & Young;  KPMG Peat  Marwick & Main;
Deloitte & Touche;
Coopers & Lybrand; and Price Waterhouse & Co.



<PAGE>


                  1.12. INDEMNIFIED PARTY has the meaning set
forth in Section
4.1 hereof.

                  1.13. INDEMNIFYING PARTY has the meaning set
forth in Section
4.1 hereof.

                  1.14. INITIAL DETERMINATION has the meaning set
forth in
Section 3.5(b)(i) hereof.

                  1.15.  INTERESTED  PARTY means AT&T or any other member of the
AT&T  Services  Group,  Lucent or any other member of the Lucent Group or NCR or
any other member of the NCR Group  (including any successor and/or assign of any
of each of the foregoing),  as the case may be, to the extent (a) such Person is
not the Controlling Party with respect to a Tax Contest; and (b) such Person (i)
may be liable for, or required to make, any indemnity payment,  reimbursement or
other payment  pursuant to the provisions of this Agreement with respect to such
Tax  Contest;  or  (ii)  may be  entitled  to  receive  any  indemnity  payment,
reimbursement or other payment pursuant to the provisions of this Agreement with
respect to such Tax Contest; provided,  however, that in no event shall a member
of either the AT&T  Services  Group,  the Lucent Group or the NCR Group,  as the
case may be, be an Interested  Party in a Tax Contest in which another member of
its Group is the Controlling Party with respect to the Tax Contest.

                  1.16. INTERESTED PARTY NOTICE has the meaning
set forth in
Section 3.4(b) hereof.

                  1.17.  NCR TAX ADJUSTMENT  means,  with respect to any Taxable
period or portion of a Taxable period,  and as computed  separately with respect
to each  Tax,  the  net  increase  in  each  such  Tax  equal  to the sum of all
Adjustments made pursuant to a Final Determination with respect to each such Tax
for each such  Taxable  period or portion of a Taxable  period  that are clearly
attributable  to the  NCR  Business;  provided,  however,  that  any  Adjustment
comprising a Restructuring Adjustment shall not be considered in determining the
amount of any NCR Tax Adjustment.

                  1.18.  NCR TAX  BENEFIT  means,  with  respect to any  Taxable
period or portion of a Taxable period,  and as computed  separately with respect
to each  Tax,  the  net  decrease  in  each  such  Tax  equal  to the sum of all
Adjustments made pursuant to a Final Determination with respect to each such Tax
for each such  Taxable  period or portion of a Taxable  period  that are clearly
attributable  to the  NCR  Business;  provided,  however,  that  any  Adjustment
comprising a Restructuring Adjustment shall not be considered in determining the
amount of any NCR Tax Benefit.




<PAGE>

                  1.19. LUCENT TAX ADJUSTMENT means, with respect to any Taxable
period or portion of a Taxable period,  and as computed  separately with respect
to each  Tax,  the  net  increase  in  each  such  Tax  equal  to the sum of all
Adjustments made pursuant to a Final Determination with respect to each such Tax
for each such  Taxable  period or portion of a Taxable  period  that are clearly
attributable  to either the  Lucent  Assets or the  Lucent  Business;  provided,
however, that any Adjustment comprising a Restructuring  Adjustment shall not be
considered in determining the amount of any Lucent Tax Adjustment.

                  1.20.  LUCENT TAX BENEFIT  means,  with respect to any Taxable
period or portion of a Taxable period,  and as computed  separately with respect
to each  Tax,  the  net  decrease  in  each  such  Tax  equal  to the sum of all
Adjustments made pursuant to a Final Determination with respect to each such Tax
for each such  Taxable  period or portion of a Taxable  period  that are clearly
attributable  to either the  Lucent  Assets or the  Lucent  Business;  provided,
however, that any Adjustment comprising a Restructuring  Adjustment shall not be
considered in determining the amount of any Lucent Tax Benefit.

                  1.21.  NON-LINE OF BUSINESS  ADJUSTMENT means, with respect to
any Taxable period or portion of a Taxable  period,  and as computed  separately
with  respect to each Tax, the net increase or decrease in each such Tax, as the
case  may be,  equal  to the sum of all  Adjustments  made  pursuant  to a Final
Determination  with  respect  to each such Tax for each such  Taxable  period or
portion of a Taxable period other than (a) any Restructuring Adjustments and any
Correlative Adjustment attributable to such Restructuring  Adjustments;  (b) any
Tax Adjustments; and (c) any Tax Benefits.

                  1.22.  RESTRUCTURING  ADJUSTMENT  means,  with  respect to any
Taxable period or portion of a Taxable period,  and as computed  separately with
respect to each Tax,  the net increase or decrease in each such Tax, as the case
may  be,  equal  to  the  sum  of  all  Adjustments  made  pursuant  to a  Final
Determination  with respect to each such Tax for each Taxable  period or portion
of a  Taxable  period  that  are  attributable  to,  or  as  a  result  of,  any
transactions   undertaken  to  effectuate  the  separation  of  AT&T's  existing
businesses  into  three  independent   businesses  as  contemplated   under  the
Separation Agreement including,  but not limited to, any transactions undertaken
pursuant  to or relating  to the  Separation,  the IPO,  the  Distribution,  the
Non-U.S. Plan, the merger of RMC with and into AT&T and the NCR Distribution.

                  1.23.  RETURN  means  any  return,  report,  form  or  similar
statement or document (including,  without limitation, any related or supporting
information or schedule attached thereto and any information  return,  claim for
refund,  amended  return and  declaration  of estimated tax) that has been or is
required to be filed with any Taxing  Authority  or that has been or is required
to be furnished to any Taxing



<PAGE>

Authority in connection with the determination,  assessment or
collection of any
Taxes  or  the  administration  of  any  laws,   regulations  or
administrative
requirements relating to any Taxes.

                  1.24. SEPARATE RETURN means any Return other
than a
Consolidated Return.

                  1.25. SEPARATION AGREEMENT means the Separation
and
Distribution Agreement, dated the date hereof, by and among AT&T
Corp., Lucent
Technologies Inc. and NCR Corporation.

                  1.26.   SIGNIFICANT  OBLIGATION  means,  in  the  case  of  an
Interested  Party,  and  with  respect  to any  Adjustment  comprising  either a
Restructuring  Adjustment  or Non- Line of  Business  Adjustment,  either  (a) a
Shared  Percentage that is greater than or equal to 30%; or (b) an obligation to
make or right to receive any indemnity  payment,  reimbursement or other payment
with  respect to any such  Adjustment  (including  the  effect of a  Correlative
Adjustment relating thereto) pursuant to the terms of this Agreement that (i) in
the case of any federal  income Tax is greater than $5 million,  and (ii) in the
case of any other Tax is greater than $1 million.

                  1.27.  TAX  (and,  with  correlative  meanings,   "Taxes"  and
"Taxable")    means,    without    limitation,    and   as   determined   on   a
jurisdiction-by-jurisdiction  basis, each foreign or U.S. federal,  state, local
or municipal income,  alternative or add-on minimum, gross receipts, sales, use,
ad  valorem,  transfer,  franchise,  profits,  license,  withholding,   payroll,
employment, excise, severance, stamp, occupation, premium, property or any other
tax,  custom,  tariff,  impost,  levy,  duty,  governmental  fee or  other  like
assessment  or charge of any kind  whatsoever,  together  with any  interest  or
penalty,  addition to tax or additional  amount related thereto,  imposed by any
Taxing Authority.

                  1.28. TAX ADJUSTMENTS  means any AT&T Tax Adjustment,  any NCR
Tax Adjustment or any Lucent Tax Adjustment, as the case may be.

                  1.29.  TAX BENEFITS  means any AT&T Tax  Benefit,  any NCR Tax
Benefit or any Lucent Tax Benefit, as the case may be.

                  1.30.  TAX  CONTEST  means,  without  limitation,  any  audit,
examination,  claim, suit, action or other proceeding relating to Taxes in which
an Adjustment to Taxes may be proposed,  collected or assessed and in respect of
which an indemnity  payment,  reimbursement or other payment may be sought under
this Agreement.



<PAGE>

                  1.31. TAXING AUTHORITY means any Governmental Authority or any
subdivision,  agency, commission or authority thereof, or any quasi-governmental
or  private  body  having  jurisdiction  over  the  assessment,   determination,
collection or other imposition of Taxes.

                  1.32. ULTIMATE DETERMINATION has the meaning set
forth in
Section 3.5(b)(iii) hereof.

                                   ARTICLE II
                            TAX ADJUSTMENTS/BENEFITS

                  2.1 IN GENERAL.  (a) In determining  Lucent's liability and/or
obligation  to make,  or  Lucent's  right to  receive,  any  indemnity  payment,
reimbursement  or other payment in respect of any Tax under this Agreement,  any
Taxable  period or portion of a Taxable  period that  includes the  Distribution
Date shall be deemed to  include  and end on such  Distribution  Date and Lucent
shall have no liability  and/or  obligation  to make,  or right to receive,  any
indemnity  payment,  reimbursement  or other payment in respect of any Tax under
this Agreement with respect to any Taxable period or portion of a Taxable period
that begins or is deemed to begin after the Distribution Date.

                  (b) In determining  NCR's liability and/or obligation to make,
or NCR's right to receive, any indemnity payment, reimbursement or other payment
in respect of any Tax under this  Agreement,  any Taxable period or portion of a
Taxable period that includes the date of the NCR Distribution shall be deemed to
include and end on such date and NCR shall have no liability  and/or  obligation
to make, or right to receive,  any  indemnity  payment,  reimbursement  or other
payment  under this  Agreement in respect of any Tax with respect to any Taxable
period or portion of a Taxable  period  that  begins or is deemed to begin after
the date of the NCR Distribution.

                  (c)  Any  Adjustment   relating  to  or  arising  out  of  the
employment  of employees or former  employees  the  Liabilities  with respect to
which are assumed by Lucent pursuant to Section 2.1(a) of the Employee  Benefits
Agreement shall be deemed to be Adjustments that are clearly attributable to the
Lucent  Business  and shall be deemed to  comprise  a Lucent Tax  Adjustment  or
Lucent Tax  Benefit,  as the case may be. All other  Adjustments  relating to or
arising out of the employment of employees or former  employees  shall be deemed
to be Adjustments  that are clearly  attributable to the AT&T Services  Business
and shall be deemed to comprise an AT&T Tax  Adjustment or AT&T Tax Benefit,  as
the case may be,  except to the  extent  that such  Adjustments  arise out of or
relate to the employment of such individuals by NCR, in which case they shall



<PAGE>

be deemed to be Adjustments  that are clearly  attributable  to the NCR Business
and shall be deemed to comprise a NCR Tax Adjustment or NCR Tax Benefit, as the
case may be.

                  2.2. TAX ADJUSTMENTS AND BENEFITS.  (a) Lucent shall be liable
for, and shall  indemnify and hold harmless,  subject to Section 3.4 and Section
3.5  hereof,  any member of the AT&T  Services  Group  and/or the NCR Group,  as
appropriate,  against any and all Lucent Tax  Adjustments for any Taxable period
or  portion  of a Taxable  period  ending  or  deemed  to end on or  before  the
Distribution  Date, in each case with respect to any Return of any member of the
Lucent Group, the AT&T Services Group or the NCR Group. Lucent shall be entitled
to  receive,  and shall be paid,  subject to Section 3.4 and Section 3.5 hereof,
(i) by AT&T,  the amount of any Lucent Tax  Benefits  for any Taxable  period or
portion  of a  Taxable  period  ending  or  deemed  to  end  on  or  before  the
Distribution  Date with respect to any Return of any member of the AT&T Services
Group; and/or (ii) by NCR, the amount of any Lucent Tax Benefits for any Taxable
period or portion of a Taxable  period  ending or deemed to end on or before the
Distribution Date with respect to any Return of any member of the NCR Group.

                  (b) AT&T shall be liable  for,  and shall  indemnify  and hold
harmless, as appropriate, and subject to Section 3.4 and Section 3.5 hereof, (i)
any member of the Lucent Group against any and all AT&T Tax  Adjustments for any
Taxable  period or  portion  of a Taxable  period  ending or deemed to end on or
before the  Distribution  Date;  and/or (ii) any member of the NCR Group against
any and all AT&T Tax  Adjustments for any Taxable period or portion of a Taxable
period ending or deemed to end on or before the date of the NCR Distribution, in
each case with respect to any Return of any member of the Lucent Group, the AT&T
Services Group or the NCR Group. AT&T shall be entitled to receive, and shall be
paid,  subject to Section 3.4 and Section 3.5 hereof,  (i) by Lucent, the amount
of any AT&T Tax Benefits for any Taxable  period or portion of a Taxable  period
ending or deemed to end on or before the  Distribution  Date with respect to any
Return of any member of the Lucent Group;  and/or (ii) by NCR, the amount of any
AT&T Tax  Benefits  for any Taxable  period or any  portion of a Taxable  period
ending  or  deemed to end on or  before  the date of the NCR  Distribution  with
respect to any Return of any member of the NCR Group.

                  (c) NCR shall be liable for, and shall indemnify
and hold
harmless, as appropriate, and subject to Section 3.4 and Section
3.5 hereof, (i)
any member of the AT&T Services Group against any and all NCR Tax
Adjustments
for any Taxable period or portion of a Taxable period ending or
deemed to end on
or before the date of the NCR Distribution; and (ii) any member of
the Lucent
Group against any and all NCR Tax Adjustments for any Taxable
period or portion
of a Taxable period ending or deemed to end on or before the
Distribution Date,
in each case with respect to any Return of any member of the
Lucent Group, the
AT&T Services Group or the NCR Group. NCR



<PAGE>

shall be  entitled  to  receive,  and shall be paid,  subject to Section 3.4 and
Section  3.5 hereof,  (i) by AT&T,  the amount of any NCR Tax  Benefits  for any
Taxable  period or  portion of a Taxable  period  ending or deemed to end on the
date of the NCR  Distribution  with  respect  to any Return of any member of the
AT&T Services Group;  and/or (ii) by Lucent,  the amount of any NCR Tax Benefits
for any Taxable period or portion of a Taxable period ending or deemed to end on
the  Distribution  Date with  respect  to any Return of any member of the Lucent
Group.

                  2.3.  RESTRUCTURING  ADJUSTMENTS.  (a) Lucent  shall be liable
for, and shall indemnify and hold harmless,  as  appropriate,  any member of the
AT&T Services Group and/or the NCR Group against  Lucent's  share, as determined
in Section  2.3(d) below,  of any  Restructuring  Adjustment the amount of which
increases a Tax for any Taxable  period or portion of a Taxable period ending or
deemed to end on or before the  Distribution  Date, in each case with respect to
any Return of any member of the Lucent Group, the AT&T Services Group or the NCR
Group.  Lucent  shall be  entitled  to  receive,  and shall be paid (i) by AT&T,
Lucent's  share,  as determined in Section  2.3(d) below,  of any  Restructuring
Adjustment the amount of which decreases a Tax for any Taxable period or portion
of a Taxable period ending or deemed to end on or before the  Distribution  Date
with respect to any Return of any member of the AT&T Services Group; and/or (ii)
by  NCR,  Lucent's  share,  as  determined  in  Section  2.3(d)  below,  of  any
Restructuring  Adjustment  the amount of which  decreases  a Tax for any Taxable
period or portion of a Taxable  period  ending or deemed to end on or before the
Distribution Date with respect to any Return of any member of the NCR Group.

                  (b) AT&T shall be liable  for,  and shall  indemnify  and hold
harmless,  as  appropriate,  (i) any member of the Lucent Group  against  AT&T's
share,  as determined in Section 2.3(d) below, of any  Restructuring  Adjustment
the  amount of which  increases  a Tax for any  Taxable  period or  portion of a
Taxable period ending or deemed to end on or before the  Distribution  Date; and
(ii) any member of the NCR Group against AT&T's share,  as determined in Section
2.3(d) below,  of any  Restructuring  Adjustment the amount of which increases a
Tax for any Taxable  period or portion of a Taxable  period  ending or deemed to
end on or before the date of the NCR Distribution,  in each case with respect to
any Return of any member of the Lucent Group, the AT&T Services Group or the NCR
Group.  AT&T  shall be  entitled  to  receive,  and shall be paid (i) by Lucent,
AT&T's  share,  as  determined in Section  2.3(d)  below,  of any  Restructuring
Adjustment the amount of which decreases a Tax for any Taxable period or portion
of a Taxable period ending or deemed to end on or before the  Distribution  Date
with  respect to any Return of any member of the Lucent  Group;  and/or  (ii) by
NCR, AT&T's share,  as determined in Section 2.3(d) below, of any  Restructuring
Adjustment the amount of which decreases a Tax for any Taxable period or portion
of a Taxable period ending or



<PAGE>

deemed to end on or before the date of the NCR Distribution  with
respect to any
Return of any member of the NCR Group.

                  (c) NCR shall be liable  for,  and  shall  indemnify  and hold
harmless,  as  appropriate,  (i) any member of the Lucent  Group  against  NCR's
share,  as determined in Section 2.3(d) below, of any  Restructuring  Adjustment
the  amount of which  increases  a Tax for any  Taxable  period or  portion of a
Taxable period ending or deemed to end on or before the  Distribution  Date; and
(ii) any member of the AT&T Services Group against NCR's share, as determined in
Section  2.3(d)  below,  of any  Restructuring  Adjustment  the  amount of which
increases a Tax for any Taxable  period or portion of a Taxable period ending or
deemed to end on or before the date of the NCR  Distribution,  in each case with
respect to any Return of any member of the Lucent Group, the AT&T Services Group
or the NCR Group.  NCR shall be entitled  to  receive,  and shall be paid (i) by
Lucent, NCR's share, as determined in Section 2.3(d) below, of any Restructuring
Adjustment the amount of which decreases a Tax for any Taxable period or portion
of a Taxable period ending or deemed to end on or before the  Distribution  Date
with  respect to any Return of any member of the Lucent  Group;  and/or  (ii) by
AT&T,  NCR's share, as determined in Section 2.3(d) below, of any  Restructuring
Adjustment the amount of which decreases a Tax for any Taxable period or portion
of a Taxable  period  ending  or deemed to end on or before  the date of the NCR
Distribution  with  respect  to any  Return of any  member of the AT&T  Services
Group.

                  (d)  AT&T,  Lucent  and NCR  shall  share  the  amount  of any
Restructuring  Adjustment  if, and to the extent,  each such party is liable for
and/or has an obligation  to make, or has the right to receive,  as the case may
be, any indemnity  payment,  reimbursement or other payment with respect to such
Restructuring  Adjustment under this Agreement, in proportion to the Shared AT&T
Percentage,  the  Shared  Lucent  Percentage  and  the  Shared  NCR  Percentage,
respectively; provided, however, that in the event that there is any Correlative
Adjustment with respect to any such Restructuring Adjustment,  then AT&T, Lucent
and NCR shall share such  Restructuring  Adjustment in the  following  manner in
order to ensure that the party or parties  that will bear the burden or inure to
the  benefit  of  the  Correlative  Adjustment  in the  future  will  share  the
Restructuring  Adjustment  in  proportion  to each of  their  respective  Shared
Percentages after giving effect to such Correlative Adjustment:

                  (i)  first,  the amount of any such  Restructuring  Adjustment
shall  be  increased  or  decreased,  as  appropriate,  by  the  amount  of  the
Correlative Adjustment,  the net amount resulting from such increase or decrease
being hereinafter referred to as the "Net Restructuring Adjustment" for purposes
of this Section 2.3(d);



<PAGE>

                  (ii)  second,  the  Net  Restructuring   Adjustment  shall  be
allocated  among  AT&T,  Lucent  and  NCR  in  proportion  to  the  Shared  AT&T
Percentage, the Shared Lucent Percentage and the Shared
NCR  Percentage,
respectively,  to the  extent  each  such  party is  liable  for  and/or  has an
obligation  to make,  or has the  right  to  receive,  as the  case may be,  any
indemnity  payment,   reimbursement  or  other  payment  with  respect  to  such
Restructuring Adjustment under this Agreement; and

                  (iii) finally,  with respect to a party to which a Correlative
Adjustment  is  attributable,  that  party's  share  of  the  Net  Restructuring
Adjustment as allocated  pursuant to paragraph  (ii) of this Section 2.3(d) will
be  increased  or  decreased,  as  appropriate,  by the  amount,  if any, of the
Correlative  Adjustment that is attributable to such party in order to arrive at
such party's share of the Restructuring Adjustment.

Notwithstanding  any  other  provision  of  this  Agreement  or  the  Separation
Agreement  to  the  contrary,  in  the  case  of  any  Adjustment  comprising  a
Restructuring Adjustment that relates to the Distribution and arises as a result
of the  acquisition of all or a portion of the Lucent stock and/or its assets by
any means  whatsoever by any Person other than an Affiliate of Lucent  following
such  Distribution,  then the  Shared  Lucent  Percentage  with  respect to such
Adjustment  shall be 100% and each of the Shared AT&T  Percentage and the Shared
NCR Percentage shall be 0%.

                  (e)  Following  the  determination  of a  party's  share  of a
Restructuring  Adjustment  pursuant  to Section  2.3(d)  above,  and  subject to
Section 3.4 and 3.5 hereof,  the Controlling Party that controls the Tax Contest
to  which  such  Restructuring  Adjustment  relates  shall  (i) be  entitled  to
reimbursement  from AT&T,  Lucent  and/or  NCR,  as the case may be, for each of
their respective  shares, if any, of any Restructuring  Adjustment the amount of
which increases a Tax; and (ii) reimburse  AT&T,  Lucent or NCR, as the case may
be, for each of their respective shares, if any, of any Restructuring Adjustment
the amount of which decreases a Tax.

                  2.4.  NON-LINE OF BUSINESS  ADJUSTMENTS.  (a) Lucent  shall be
liable for, and shall indemnify and hold harmless, as appropriate, any member of
the AT&T  Services  Group  and/or  the NCR  Group  against  Lucent's  share,  as
determined in Section 2.4(d) below,  of any Non-Line of Business  Adjustment the
amount of which  increases a Tax for any Taxable  period or portion of a Taxable
period ending or deemed to end on or before the Distribution  Date, in each case
with respect to any Return of any member of the Lucent Group,  the AT&T Services
Group or the NCR Group.  Lucent shall be entitled to receive,  and shall be paid
(i) by AT&T,  Lucent's  share,  as  determined in Section  2.4(d) below,  of any
Non-Line  of  Business  Adjustment  the amount of which  decreases a Tax for any
Taxable  period or  portion  of a Taxable  period  ending or deemed to end on or
before the Distribution Date with respect to any Return of any member of the



<PAGE>

AT&T  Services  Group;  and/or (ii) by NCR,  Lucent's  share,  as  determined in
Section 2.4(d) below, of any Non-Line of Business Adjustment the amount of which
decreases a Tax for any Taxable  period or portion of a Taxable period ending or
deemed to end on or before the  Distribution  Date with respect to any Return of
any member of the NCR Group.

                  (b) AT&T shall be liable  for,  and shall  indemnify  and hold
harmless,  as  appropriate,  (i) any member of the Lucent Group  against  AT&T's
share,  as  determined  in Section  2.4(d)  below,  of any  Non-Line of Business
Adjustment the amount of which increases a Tax for any Taxable period or portion
of a Taxable period ending or deemed to end on or before the Distribution  Date;
and (ii) any member of the NCR Group  against  AT&T's  share,  as  determined in
Section 2.4(d) below, of any Non-Line of Business Adjustment the amount of which
increases a Tax for any Taxable  period or portion of a Taxable period ending or
deemed to end on or before the date of the NCR  Distribution,  in each case with
respect to any Return of any member of the Lucent Group, the AT&T Services Group
or the NCR Group.  AT&T shall be entitled  to receive,  and shall be paid (i) by
Lucent,  AT&T's share, as determined in Section 2.4(d) below, of any Non-Line of
Business  Adjustment the amount of which  decreases a Tax for any Taxable period
or  portion  of a Taxable  period  ending  or  deemed  to end on or  before  the
Distribution  Date with respect to any Return of any member of the Lucent Group;
and/or (ii) by NCR,  AT&T's share, as determined in Section 2.4(d) below, of any
Non-Line  of  Business  Adjustment  the amount of which  decreases a Tax for any
Taxable  period or  portion  of a Taxable  period  ending or deemed to end on or
before the date of the NCR Distribution with respect to any Return of any member
of the NCR Group.

                  (c) NCR shall be liable  for,  and  shall  indemnify  and hold
harmless,  as  appropriate,  (i) any member of the Lucent  Group  against  NCR's
share,  as  determined  in Section  2.4(d)  below,  of any  Non-Line of Business
Adjustment the amount of which increases a Tax for any Taxable period or portion
of a Taxable period ending or deemed to end on or before the Distribution  Date;
and  (ii)  any  member  of the AT&T  Services  Group  against  NCR's  share,  as
determined in Section 2.4(d) below,  of any Non-Line of Business  Adjustment the
amount of which  increases a Tax for any Taxable  period or portion of a Taxable
period ending or deemed to end on or before the date of the NCR Distribution, in
each case with respect to any Return of any member of the Lucent Group, the AT&T
Services Group or the NCR Group. NCR shall be entitled to receive,  and shall be
paid (i) by Lucent,  NCR's share,  as determined in Section 2.4(d) below, of any
Non-Line  of  Business  Adjustment  the amount of which  decreases a Tax for any
Taxable  period or  portion  of a Taxable  period  ending or deemed to end on or
before  the  Distribution  Date with  respect to any Return of any member of the
Lucent Group;  and/or (ii) by AT&T, NCR's share, as determined in Section 2.4(d)
below,  of any Non-Line of Business  Adjustment the amount of which  decreases a
Tax for any Taxable



<PAGE>

period or portion of a Taxable  period  ending or deemed to end on or before the
date of the NCR  Distribution  with  respect  to any Return of any member of the
AT&T Services Group.

                  (d)  AT&T,  Lucent  and NCR  shall  share  the  amount  of any
Non-Line of Business Adjustment if, and to the extent, each such party is liable
for and/or has an obligation  to make, or has the right to receive,  as the case
may be, any indemnity  payment,  reimbursement  or other payment with respect to
such Non-Line of Business Adjustment under this Agreement,  in proportion to the
Shared  AT&T  Percentage,  the  Shared  Lucent  Percentage  and the  Shared  NCR
Percentage, respectively; provided, however, that in the event that there is any
Correlative Adjustment with respect to any such Non-Line of Business Adjustment,
then AT&T,  Lucent and NCR shall share such  Non-Line of Business  Adjustment in
the following manner in order to ensure that the party or parties that will bear
the burden or inure to the benefit of the  Correlative  Adjustment in the future
will share the Non-Line of Business  Adjustment  in  proportion to each of their
respective   Shared   Percentages   after  giving  effect  to  such  Correlative
Adjustment:

                  (i)  first,  the  amount  of any  such  Non-Line  of  Business
Adjustment shall be increased or decreased, as appropriate, by the amount of the
Correlative Adjustment,  the net amount resulting from such increase or decrease
being hereinafter  referred to as the "Net Non-Line of Business  Adjustment" for
purposes of this Section 2.4(d);

                  (ii) second, the Net Non-Line of Business  Adjustment shall be
allocated  among  AT&T,  Lucent  and  NCR  in  proportion  to  the  Shared  AT&T
Percentage, the Shared Lucent Percentage and the Shared
NCR  Percentage,
respectively,  to the  extent  each  such  party is  liable  for  and/or  has an
obligation  to make,  or has the  right  to  receive,  as the  case may be,  any
indemnity payment,  reimbursement or other payment with respect to such Non-Line
of Business Adjustment under this Agreement; and

                  (iii) finally,  with respect to a party to which a Correlative
Adjustment is  attributable,  that party's share of the Net Non-Line of Business
Adjustment as allocated  pursuant to paragraph  (ii) of this Section 2.4(d) will
be  increased  or  decreased,  as  appropriate,  by the  amount,  if any, of the
Correlative  Adjustment that is attributable to such party in order to arrive at
such party's share of the Non-Line of Business Adjustment.

                  (e)  Following  the  determination  of a  party's  share  of a
Non-Line of Business Adjustment pursuant to Section 2.4(d) above, and subject to
Section 3.4 and 3.5 hereof,  the Controlling Party that controls the Tax Contest
to which such Non-Line of Business  Adjustment  relates shall (i) be entitled to
reimbursement from AT&T, Lucent



<PAGE>

and/or NCR, as the case may be, for each of their respective  shares, if any, of
any  Non-Line of Business  Adjustment  the amount of which  increases a Tax; and
(ii)  reimburse  AT&T,  Lucent  or NCR,  as the case  may be,  for each of their
respective shares, if any, of any Non-Line of Business  Adjustment the amount of
which decreases a Tax.

                                   ARTICLE III
                                  TAX CONTESTS

                  3.1. NOTIFICATION OF TAX CONTESTS. The Controlling Party shall
promptly  notify  all  Interested  Parties  of (a) the  commencement  of any Tax
Contest  pursuant  to which such  Interested  Parties may be required to make or
entitled to receive an indemnity  payment,  reimbursement or other payment under
this  Agreement;  and (b) as required and  specified in Section 3.4 hereof,  any
Final  Determination made with respect to any Tax Contest pursuant to which such
Interested  Parties may be required to make or entitled to receive any indemnity
payment,  reimbursement or other payment under this Agreement.  The failure of a
Controlling  Party to promptly  notify any Interested  Party as specified in the
preceding  sentence shall not relieve any such Interested Party of any liability
and/or  obligation  which  it may  have  to the  Controlling  Party  under  this
Agreement  except to the extent that the Interested Party was prejudiced by such
failure,  and in no event shall such failure  relieve the Interested  Party from
any other liability or obligation which it may have to such Controlling Party.

                  3.2. TAX CONTEST  SETTLEMENT  RIGHTS.  The  Controlling  Party
shall  have the sole  right to  contest,  litigate,  compromise  and  settle any
Adjustment that is made or proposed in a Tax Contest without obtaining the prior
consent of any Interested Party;  provided,  however, that, unless waived by the
parties in writing, the Controlling Party shall, in connection with any proposed
or assessed  Adjustment  in a Tax Contest for which an  Interested  Party may be
required to make or entitled to receive an indemnity  payment,  reimbursement or
other payment under this Agreement (a) keep all such Interested Parties informed
in a  timely  manner  of all  actions  taken  or  proposed  to be  taken  by the
Controlling  Party;  and (b) provide all such Interested  Parties with copies of
any  correspondence  or filings  submitted  to any Taxing  Authority or judicial
authority, in each case in connection with any contest,  litigation,  compromise
or settlement relating to any such Adjustment in a Tax Contest. The failure of a
Controlling Party to take any action as specified in the preceding sentence with
respect to an Interested  Party shall not relieve any such  Interested  Party of
any liability and/or obligation which it may have to the Controlling Party under
this Agreement  except to the extent that the Interested Party was prejudiced by
such failure,  and in no event shall such failure  relieve the Interested  Party
from any other  liability or  obligation  which it may have to such  Controlling
Party. The Controlling Party may, in its sole discretion,  take into account any
suggestions made by



<PAGE>

an Interested Party with respect to any such contest, litigation,  compromise or
settlement of any Adjustment in a Tax Contest.  All costs of any Tax Contest are
to be borne by the  Controlling  Party;  provided,  however,  that (x) any costs
related  to an  Interested  Party's  attendance  at any  meeting  with a  Taxing
Authority or hearing or  proceeding  before any judicial  authority  pursuant to
Section  3.3  hereof,  and (y) the costs of any  legal or other  representatives
retained by an  Interested  Party in  connection  with any Tax  Contest  that is
subject to the provisions of this  Agreement,  shall be borne by such Interested
Party.

                  3.3.  TAX  CONTEST  PARTICIPATION.  (a)  Unless  waived by the
parties in writing, the Controlling Party shall provide an Interested Party with
written notice  reasonably in advance of, and such  Interested  Party shall have
the right to attend,  any formally scheduled meetings with Taxing Authorities or
hearings or proceedings  before any judicial  authorities in connection with any
contest,  litigation,  compromise  or  settlement  of any  proposed  or assessed
Adjustment  comprising  any Tax Adjustment or Tax Benefit that is the subject of
any Tax Contest  pursuant to which such Interested Party may be required to make
or entitled to receive an  indemnity  payment,  reimbursement  or other  payment
under this Agreement. In addition,  unless waived by the parties in writing, the
Controlling  Party shall provide each such Interested Party with draft copies of
any  correspondence  or  filings to be  submitted  to any  Taxing  Authority  or
judicial  authority with respect to such Adjustments for such Interested Party's
review and  comment.  The  Controlling  Party shall  provide  such draft  copies
reasonably  in advance of the date that they are to be  submitted  to the Taxing
Authority  or judicial  authority  and the  Interested  Party shall  provide its
comments,  if any, with respect  thereto within in a reasonable time before such
submission.   The  failure  of  a  Controlling  Party  to  provide  any  notice,
correspondence  or filing as specified in this Section  3.3(a) to an  Interested
Party  shall not  relieve  any such  Interested  Party of any  liability  and/or
obligation  which it may have to the  Controlling  Party  under  this  Agreement
except to the extent that the  Interested  Party was prejudiced by such failure,
and in no event shall such failure  relieve the Interested  Party from any other
liability or obligation which it may have to such Controlling Party.

                  (b) Unless waived by the parties in writing,  the  Controlling
Party shall  provide an  Interested  Party with  written  notice  reasonably  in
advance  of, and such  Interested  Party  shall  have the right to  attend,  any
formally  scheduled  meetings with Taxing Authorities or hearings or proceedings
before any judicial  authorities  in  connection  with any contest,  litigation,
compromise or settlement of any proposed or assessed  Adjustment  comprising any
Restructuring  Adjustment or Non-Line of Business Adjustment that is the subject
of any Tax Contest  pursuant to which such  Interested  Party may be required to
make or entitled to receive an indemnity payment, reimbursement or other payment
under this  Agreement,  but only if the Interested  Party bears,  or in the good
faith judgment of the Controlling Party, may bear, a Significant Obligation with
respect to such Adjustment;  provided,  however, that the Controlling Party may,
in its sole



<PAGE>

discretion,  permit an Interested Party that does not bear, or potentially bear,
such a Significant  Obligation  with respect to such an Adjustment  comprising a
Restructuring  Adjustment or Non-Line of Business  Adjustment to attend any such
meetings,  hearings or proceedings that relate to such Adjustment.  In addition,
unless  waived by the parties in writing,  the  Controlling  Party shall provide
each such Interested Party with draft copies of any correspondence or filings to
be submitted to any Taxing Authority or judicial  authority with respect to such
Adjustments  for such  Interested  Party's review and comment.  The  Controlling
Party shall  provide  such draft copies  reasonably  in advance of the date that
they are to be submitted to the Taxing  Authority or judicial  authority and the
Interested Party shall provide its comments, if any, with respect thereto within
in a reasonable time before such submission.  The failure of a Controlling Party
to provide any notice,  correspondence  or filing as  specified  in this Section
3.3(b) to an Interested Party shall not relieve any such Interested Party of any
liability  and/or  obligation  which it may have to the Controlling  Party under
this Agreement  except to the extent that the Interested Party was prejudiced by
such failure,  and in no event shall such failure  relieve the Interested  Party
from any other  liability or  obligation  which it may have to such  Controlling
Party.

                  3.4.  TAX  CONTEST  WAIVER.  (a) The
Controlling  Party shall
promptly  provide  written  notice,  sent postage prepaid by United States mail,
certified mail,  return receipt  requested,  to all Interested  Parties in a Tax
Contest (i) that a Final  Determination  has been made with  respect to such Tax
Contest; and (ii) enumerating the amount of the Interested Party's share of each
Adjustment  reflected in such Final  Determination  of the Tax Contest for which
such  Interested  Party  may be  required  to make or  entitled  to  receive  an
indemnity payment, reimbursement or other payment under this Agreement.

                  (b) Within ninety (90) days after an Interested Party receives
the notice described in Section 3.4(a) hereof from the Controlling  Party,  such
Interested  Party  shall  execute  a  written  statement  giving  notice  to the
Controlling Party (i) that the Interested Party agrees with each Adjustment (and
its share thereof)  enumerated in the notice  described in Section 3.4(a) hereof
except with respect to those  Adjustments  (and/or its shares  thereof) that, in
the good faith  judgment of the  Interested  Party,  it  disagrees  with and has
specifically  enumerated  its  disagreement  with,  including the amount of such
disagreement,  in the statement  (each such disagreed  Adjustment  (and/or share
thereof) hereinafter referred to as a "Disputed Adjustment");  and (ii) that the
Interested  Party thereby waives it right to a  determination  by an Independent
Third Party pursuant to the provisions of Section 3.5 hereof with respect to all
Adjustments  to which it  agrees  with its  share  (this  statement  hereinafter
referred to as the  "Interested  Party  Notice").  The failure of an  Interested
Party to provide the Interested Party Notice to the Controlling Party within the
ninety (90) day period  specified in the preceding  sentence  shall be deemed to
indicate that such Interested Party agrees with its share of all Adjustments



<PAGE>

enumerated  in the  notice  described  in  Section  3.4(a)  hereof and that such
Interested  Party waives it right to a  determination  by an  Independent  Third
Party with respect to all such Adjustments (and its shares thereof)  pursuant to
Section 3.5 hereof.

                  (c) During the ninety  (90) day period  immediately  following
the  Controlling  Party's  receipt of the Interested  Party Notice  described in
Section 3.4(b) above,  the Controlling  Party and the Interested  Party shall in
good faith confer with each other to resolve any disagreement over each Disputed
Adjustment that was specifically  enumerated in such Interested Party Notice. At
the end of the  ninety  (90) day period  specified  in the  preceding  sentence,
unless otherwise  extended in writing by the mutual consent of the parties,  the
Interested  Party shall be deemed to agree with all  Disputed  Adjustments  that
were specifically  enumerated in the Interested Party Notice and waive its right
to a determination by an Independent  Third Party pursuant to Section 3.5 hereof
with respect to all such Disputed Adjustments unless, and to the extent, that at
any  time  during  such  ninety  (90)  day  (or  extended)  period,  either  the
Controlling  Party or the  Interested  Party has given the other  party  written
notice that it is seeking a determination by an Independent Third Party pursuant
to Section 3.5 hereof regarding the propriety of any such Disputed Adjustment.

                  (d)   Notwithstanding   anything  in  this  Agreement  to  the
contrary,  an Interested Party that does not have a Significant  Obligation with
respect  to an  Adjustment  comprising  either  a  Restructuring  Adjustment  or
Non-Line  of  Business  Adjustment  has  no  right  to  a  determination  by  an
Independent  Third  Party  under  section  3.5 hereof  with  respect to any such
Adjustment  comprising  a  Restructuring  Adjustment  or  Non-Line  of  Business
Adjustment.

                  3.5.  TAX CONTEST  DISPUTE  RESOLUTION.  (a) In the event that
either a  Controlling  Party or an  Interested  Party has given the other  party
written  notice as  required  in  Section  3.4(c)  hereof  that it is  seeking a
determination  by an  Independent  Third Party pursuant to this Section 3.5 with
respect to any Disputed  Adjustment  that was enumerated in an Interested  Party
Notice,  then the parties shall, within ten (10) days after a party has received
such  notice,   jointly  select  an   Independent   Third  Party  to  make  such
determination.  In the  event  that  the  parties  cannot  jointly  agree  on an
Independent  Third  Party to make such  determination  within  such ten (10) day
period,  then  the  Controlling  Party  and  the  Interested  Party  shall  each
immediately  select an Independent Third Party and the Independent Third Parties
so selected by the parties shall jointly  select,  within ten (10) days of their
selection, another Independent Third Party to make such determination.

                  (b) In making its  determination  as to the  propriety  of any
Disputed  Adjustment,  the Independent  Third Party selected pursuant to Section
3.5(a) above shall assume that the Interested  Party is not required or entitled
under applicable law to be a



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member of any  Consolidated  Return.  In addition,  the Independent  Third Party
shall make its determination according to the following procedure:

                  (i) The  Independent  Third  Party shall  first  analyze  each
Disputed Adjustment for which a determination is sought pursuant to this Section
3.5 on a stand alone basis to determine  whether the actual outcome reached with
respect to such Disputed  Adjustment as reflected in the Final  Determination of
the Tax  Contest was fair and  appropriate  taking  into  account the  following
exclusive  criteria:  (A)  the  facts  relating  to  such  Adjustment;  (B)  the
applicable law, if any, with respect to such Adjustment; (C) the position of the
applicable Taxing Authority with respect to compromise, settlement or litigation
of such Adjustment;  (D) the strength of the factual and legal arguments made by
the Controlling Party in reaching the outcome with respect to such Adjustment as
reflected in the Final Determination of the Tax Contest; and (E) the strength of
the  factual  and legal  arguments  being made by the  Interested  Party for the
alternative  outcome being  asserted by such  Interested  Party  (including  the
availability of facts, information and documentation to support such alternative
outcome).  Based on this analysis,  the Independent  Third Party shall determine
what  is the  fair  and  appropriate  outcome  (hereinafter  referred  to as the
"Initial Determination") with respect to each such Disputed Adjustment.

                  (ii)  The   Interested   Party   shall  not  be   entitled  to
modification of its share of a Disputed Adjustment under this Section 3.5 if, as
the case may be,  either  (A) the amount  that  would be paid by the  Interested
Party under the Initial  Determination with respect to such Disputed  Adjustment
is 80% or more than the amount that would be paid by the  Interested  Party with
respect to such  Disputed  Adjustment  under the  actual  outcome  reached  with
respect to such Disputed Adjustment; or (B) the amount that would be received by
the  Interested  Party  under the  Initial  Determination  with  respect to such
Disputed  Adjustment is 120% or less than the amount that the  Interested  Party
would receive with respect to such Disputed  Adjustment under the actual outcome
reached with respected to such Disputed Adjustment.  The Independent Third Party
will provide notice to the  Controlling  Party and the  Interested  Party in the
event the Interested  Party is not entitled to  modification of its share of the
Disputed Adjustment pursuant to this paragraph (ii).

                  (iii) If the modification of an Interested  Party's share of a
Disputed  Adjustment  under  this  Section  3.5 is not  prohibited  pursuant  to
paragraph (ii) above,  then the Independent  Third Party shall determine what is
the fair and  appropriate  outcome  (hereinafter  referred  to as the  "Ultimate
Determination") to the Interested Party with respect to such Disputed Adjustment
in the context of the entire Tax Contest as it relates to the Interested  Party.
In making this  determination,  the  Independent  Third Party shall consider the
Disputed Adjustment as if it were raised in an independent audit of the



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Interested Party by the appropriate  Taxing Authority and the Independent  Third
Party shall take into account and give appropriate weight in its sole discretion
to the following exclusive  criteria:  (A) the strength of the legal and factual
support for other potential,  non-frivolous  Adjustments with respect to matters
that were actually  raised and contested by the applicable  Taxing  Authority in
the Tax Contest for which the Interested Party could have been liable under this
Agreement but which were  eliminated  or reduced as a result of the  Controlling
Party   agreeing  to  the  Disputed   Adjustment   as  reflected  in  the  Final
Determination  of the Tax Contest;  (B) the effect of the actual outcome reached
with respect to the Disputed  Adjustment on other  Taxable  periods and on other
positions taken or proposed to be taken in Returns filed or proposed to be filed
by the Interested Party; (C) the realistic  possibility of avoiding  examination
of  potential,  non-frivolous  issues for which the  Interested  Party  could be
liable  under  this  Agreement  and that were  contemporaneously  identified  in
writings by the party or parties  during the course of the Tax Contest but which
had not been raised and contested by the applicable  Taxing Authority in the Tax
Contest;  and (D) the  benefits  to the  Interested  Party in  reaching  a Final
Determination,  and the strategy and  rationale  with respect to the  Interested
Party's Disputed  Adjustment that the Controlling Party had for agreeing to such
Disputed Adjustment in reaching the Final Determination,  in each case that were
contemporaneously  identified  in  writings  by the party or parties  during the
course of the Tax Contest.

                  (iv)  The   Interested   Party   shall  only  be  entitled  to
modification of its share of a Disputed Adjustment under this Section 3.5 if, as
the case may be,  either  (A) the amount  that  would be paid by the  Interested
Party under the Ultimate  Determination with respect to such Disputed Adjustment
is less than 80% of the amount that would be paid by the  Interested  Party with
respect to such  Disputed  Adjustment  under the  actual  outcome  reached  with
respect to such Disputed Adjustment; or (B) the amount that would be received by
the  Interested  Party under the  Ultimate  Determination  with  respect to such
Disputed  Adjustment is more than 120% of the amount that the  Interested  Party
would receive with respect to such Disputed  Adjustment under the actual outcome
reached with respected to such Disputed  Adjustment.  If an Interested  Party is
entitled  to  modification  of its share of any  Disputed  Adjustment  under the
preceding  sentence,  the amount the Interested Party is entitled to receive, or
is required to pay, as the case may be, with respect to such Disputed Adjustment
shall be equal to the  amount of the  Ultimate  Determination  of such  Disputed
Adjustment.  The Independent  Third Party will provide notice to the Controlling
Party and the Interested  Party stating whether the Interested Party is entitled
to  modification  of its  share  of the  Disputed  Adjustment  pursuant  to this
paragraph  (iv) and, if the Interested  Party is entitled to such  modification,
the amount as determined in the preceding  sentence that the Interested Party is
entitled to receive  from,  or required  to pay to, the  Controlling  Party with
respect to such Disputed Adjustment.



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                  (c) Any  determination  made or notice given by an Independent