AT&T CORP
10-Q, 1998-11-13
TELEPHONE COMMUNICATIONS (NO RADIOTELEPHONE)
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                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                              Washington, DC 20549
                                    FORM 10-Q



          ..X.. QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE

                         SECURITIES EXCHANGE ACT OF 1934

                For the quarterly period ended September 30, 1998

                                       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 - Area Code 212-387-5400

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 .....


         At October 31, 1998, 1,753,577,000 common shares were outstanding

<PAGE>                                                   AT&T Form 10-Q - Part I


                         PART I - FINANCIAL INFORMATION
                        CONSOLIDATED STATEMENTS OF INCOME
                 (Dollars in Millions Except Per Share Amounts)
                                   (Unaudited)


                                                  For the Three    For the Nine
                                                  Months Ended     Months Ended
                                                  September 30,    September 30,
                                                 1998      1997    1998     1997

Revenues...................................   $13,653   $13,090 $39,695  $38,674

Operating Expenses
Access and other interconnection...........     3,819     3,975  11,649   12,488
Network and other
 communications services...................     2,515     2,455   7,268    7,067
Depreciation and amortization .............     1,194     1,019   3,388    2,927
Selling, general and administrative .......     3,330     3,894  10,419   11,347
Restructuring and other charges............      (517)        -   2,827        -
Total operating expenses ..................    10,341    11,343  35,551   33,829

Operating income...........................     3,312     1,747   4,144    4,845

Other income - net ........................       156       132   1,169      371
Interest expense ..........................       114        75     322      241
Income from continuing operations
 before income taxes ......................     3,354     1,804   4,991    4,975
Provision for income taxes ................     1,258       726   1,840    1,977
Income from continuing operations .........     2,096     1,078   3,151    2,998
Income from discontinued operations
 (net of taxes of $0, $6, $6, and $49).....         -        20      10       89
Gain on sale of discontinued operations
 (net of taxes of $0, $43, $799 and $43)...         -        66   1,290       66
Income before extraordinary loss...........     2,096     1,164   4,451    3,153
Extraordinary loss (net of taxes of $80)...       137         -     137        -

Net income ................................   $ 1,959   $ 1,164 $ 4,314  $ 3,153

Weighted average common shares and
 potential common shares (millions)*.......     1,804     1,787   1,810    1,784

Per common share - basic:
 Income from continuing operations ........   $  1.17   $  0.60 $  1.76  $  1.69
 Income from discontinued operations.......         -      0.01    0.01     0.04
 Gain on sale of discontinued operations...         -      0.04     .71     0.04
 Extraordinary loss........................     (0.08)        -   (0.08)       -
 Net income ...............................   $  1.09   $  0.65 $  2.40  $  1.77

Per common share - diluted:
 Income from continuing operations ........   $  1.16   $  0.60 $  1.74  $  1.69
 Income from discontinued operations.......         -      0.01       -     0.04
 Gain on sale of discontinued operations...         -      0.04    0.71     0.04
 Extraordinary loss........................     (0.07)        -   (0.07)       -
 Net income ...............................   $  1.09   $  0.65 $  2.38  $  1.77

Dividends declared per common share........   $  0.33   $  0.33 $  0.99  $  0.99

*Amounts  represent  the  weighted-average  shares  assuming  dilution  from the
potential  exercise of stock  options.  Amounts  are  reduced by 13  million,  2
million,  15 million,  and 5 million for the three month and nine month  periods
ended September 30, 1998, and 1997, respectively, assuming no dilution.

              See Notes to Consolidated Financial Statements

<PAGE>                                                   AT&T Form 10-Q - Part I

                           CONSOLIDATED BALANCE SHEETS
                   (Dollars in Millions Except Share Amounts)
                                   (Unaudited)

                                    September 30,   December 31,
                                            1998           1997
ASSETS

Cash and cash equivalents .............. $ 4,190        $   318

Marketable securities...................       -            307

Receivables, less allowances
  of $1,029 and $988
  Accounts receivable...................   8,979          8,675
  Other receivables.....................     404          5,684

Deferred income taxes...................   1,398          1,252

Other current assets....................     592            541

Total current assets....................  15,563         16,777

Property, plant and equipment, net
  of accumulated depreciation of
  $24,718 and $22,233 ..................  25,093         24,203

Licensing costs, net of accumulated
  amortization of $1,219 and $1,076.....   8,079          8,368

Investments.............................   3,430          3,866

Long-term receivables...................     671          1,794

Prepaid pension costs...................   2,022          2,156

Other assets............................   3,303          2,830

Net assets of discontinued operation....       -          1,101

TOTAL ASSETS............................ $58,161        $61,095

                                    (CONT'D)

<PAGE>                                                   AT&T Form 10-Q - Part I

                      CONSOLIDATED BALANCE SHEETS (CONT'D)
                   (Dollars in Millions Except Share Amounts)
                                   (Unaudited)


                                    September 30,  December 31,
                                            1998          1997
LIABILITIES
Accounts payable.......................  $ 5,768       $ 6,402
Payroll and benefit-related
  liabilities..........................    1,571         2,390
Debt maturing within one year..........    1,009         4,085
Dividends payable......................      581           538
Other current liabilities..............    5,794         3,902

Total current liabilities..............   14,723        17,317

Long-term debt.........................    6,079         7,857
Long-term benefit-related liabilities..    4,825         3,142
Deferred income taxes..................    5,075         5,711
Other long-term liabilities and
  deferred credits.....................    3,392         3,390

Total liabilities .....................   34,094        37,417

SHAREOWNERS' EQUITY
Common shares - par value $1 per share.    1,754         1,789
  Authorized shares: 6,000,000,000
  Outstanding shares:
  1,753,668,000 at September 30, 1998;
  1,789,013,000 at December 31, 1997
Additional paid-in capital.............   15,170        17,121
Guaranteed ESOP obligation.............      (44)          (70)
Retained earnings......................    7,253         4,876
Accumulated other comprehensive
  income...............................      (66)          (38)

Total shareowners' equity..............   24,067        23,678

TOTAL LIABILITIES & SHAREOWNERS' EQUITY  $58,161       $61,095

                 See Notes to Consolidated Financial Statements

<PAGE>                                                   AT&T Form 10-Q - Part I


            CONSOLIDATED STATEMENTS OF CHANGES IN SHAREOWNERS' EQUITY
                              (Dollars in Millions)
                                   (Unaudited)


                                                 For the Nine Months Ended
                                                         September 30,
                                                   1998                1997

Common Shares
  Balance at beginning of year.............. $ 1,789             $ 1,774
  Shares issued(acquired), net:
    Under employee plans....................       2                   2
    Under shareowner plans..................       -                   -
    For acquisitions........................     (37)                  5
Balance at end of period....................   1,754               1,781

Additional Paid-In Capital
  Balance at beginning of year..............  17,121              16,624
  Shares issued(acquired), net:
    Under employee plans....................      65                  49
    Under shareowner plans..................       -                   9
    For acquisitions........................  (2,110)                 89
    Other...................................      94                  24
Balance at end of period....................  15,170              16,795

Guaranteed ESOP Obligation
  Balance at beginning of year..............     (70)                (96)
  Amortization..............................      26                  25
Balance at end of period....................     (44)                (71)

Retained Earnings
  Balance at beginning of year..............   4,876               2,790
  Net income................................   4,314  $4,314       3,153 $3,153
  Dividends declared........................  (1,651)             (1,609)
  Treasury shares issued at less than cost..    (289)                (86)
  Other changes.............................       3                   5
Balance at end of period....................   7,253               4,253

Accumulated Other Comprehensive Income
  Balance at beginning of year..............     (38)                  -
  Other comprehensive income
    (net of taxes of ($57) and ($6)) .......     (28)    (28)        (22)   (22)
  Total Comprehensive Income................          $4,286             $3,131
Balance at end of period....................     (66)                (22)

Total Shareowners' Equity................... $24,067             $22,736

                  See Notes to Consolidated Financial Statements

<PAGE>                                                   AT&T Form 10-Q - Part I


                      CONSOLIDATED STATEMENTS OF CASH FLOWS
                              (Dollars in Millions)
                                   (Unaudited)

                                                   For the Nine
                                                   Months Ended
                                                   September 30,
                                                  1998      1997
Operating Activities
Net income ...............................     $ 4,314   $ 3,153
Deduct: Income from discontinued
          operations .....................          10       155
        Gain on sale of discontinued
          operation.......................       1,290         -
Add:    Extraordinary loss on retirement
          of debt, net....................         137         -
Income from continuing operations ........       3,151     2,998
Adjustments to reconcile net income to
  net cash provided by operating
  activities of continuing operations:
   Restructuring and other charges........       2,732         -
   Gains on sales.........................        (770)      (97)
   Depreciation and amortization..........       3,388     2,927
   Provision for uncollectibles...........       1,050     1,185
   Increase in accounts receivable........      (1,414)     (974)
   (Decrease)increase in accounts payable.        (366)      173
   Net increase in other operating
     assets and liabilities...............         (65)     (439)
   Other adjustments for noncash
     items - net..........................        (865)      (76)

Net cash provided by operating
  activities of continuing operations.....       6,841     5,697

Investing Activities
  Capital expenditures....................      (4,979)   (5,088)
  Proceeds from sale of
    property, plant and equipment.........          56        78
  Decrease in other receivables...........       6,403       434
  Acquisitions of licenses, net...........         (53)     (402)
  Decrease in marketable securities.......         307       291
  Net decrease(increase) in investments...       1,186      (160)
  Net dispositions, net of cash acquired..       4,119     1,507
  Other investing activities - net........         (74)      (97)

Net cash provided by(used in) investing
  activities of continuing operations.....       6,965    (3,437)

                                    (CONT'D)

<PAGE>                                                   AT&T Form 10-Q - Part I


                 CONSOLIDATED STATEMENTS OF CASH FLOWS (CONT'D)
                              (Dollars in Millions)
                                   (Unaudited)

                                                   For the Nine
                                                   Months Ended
                                                   September 30,
                                                  1998      1997

Financing Activities
  Proceeds from long-term debt issuance..           17         -
  Retirements of long-term debt..........       (2,230)     (631)
  Acquisition of common shares - net.....       (3,203)      (11)
  Dividends paid.........................       (1,608)   (1,605)
  (Decrease)increase in short-term
    borrowings - net.....................       (3,030)      126
  Other financing activities - net.......           28        45
Net cash used in financing activities
  of continuing operations...............      (10,026)   (2,076)
Net cash provided by(used in)
  discontinued operations................           92       (12)

Net increase in cash and
  cash equivalents.......................        3,872       172

Cash and cash equivalents
  at beginning of year...................          318       196

Cash and cash equivalents
  at end of period.......................      $ 4,190   $   368



                 See Notes to Consolidated Financial Statements

<PAGE>                                                   AT&T Form 10-Q - Part I


                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                 (Dollars in Millions Except Per Share Amounts)
                                   (Unaudited)

(a)           BASIS OF PRESENTATION
              The consolidated  financial  statements have been prepared by AT&T
              Corp.  ("AT&T"  or  the  "Company")  pursuant  to  the  rules  and
              regulations of the Securities and Exchange  Commission  (SEC) and,
              in the opinion of management,  include all adjustments,  necessary
              for a fair  statement of the  consolidated  results of operations,
              financial  position and cash flows for each period presented.  The
              consolidated  results  for  interim  periods  are not  necessarily
              indicative of results for the full year.  These financial  results
              should  be read in  conjunction  with  AT&T's  Form  8-K  filed on
              October 16, 1998,  which  includes  AT&T's  restated  consolidated
              financial results for the year ended December 31, 1997, as well as
              for the six months ended June 30, 1998.  These  financial  results
              were  restated to reflect the July 23, 1998,  merger with Teleport
              Communications  Group  Inc.  (TCG)  which was  accounted  for as a
              pooling of  interests.  In addition,  these  financial  statements
              should be read in  conjunction  with AT&T's Form 10-K for the year
              ended December 31, 1997.

(b)           RESTRUCTURING AND OTHER CHARGES
              During the  first quarter 1998 AT&T  recorded a pre-tax  charge of
              $601  related  to  the  Company's  decision  not to  pursue  Total
              Service Resale (TSR) as  a local service  strategy.  The Company's
              in-market  experiences  and  results  have  proven  that  the  TSR
              solution is not  economically  viable for the  short-term  or  the
              long-term.  The  pre-tax  charge  includes  a $543  write-down  of
              software,  $42 primarily related  to equipment associated with the
              software   platform  and  $16  for   the  termination  of  certain
              contracts.  The  impact was a reduction of approximately $0.21 per
              diluted share.

              AT&T continues its financial and operational review of the various
              alternatives for entering the local market,  including the impacts
              associated  with the merger with TCG and the  pending  merger with
              Tele-Communications, Inc. (TCI). In addition, certain fixed assets
              which were purchased as part of the local initiative are currently
              being evaluated in conjunction with the TCG merger to determine if
              any assets are  impaired.  Management  expects  to  complete  this
              review by the end of the fourth quarter.

<PAGE>                                                   AT&T Form 10-Q - Part I


                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                 (Dollars in Millions Except Per Share Amounts)
                                   (Unaudited)


              During the second quarter 1998 AT&T recorded restructuring charges
              of  $2,743  primarily  in  connection  with a plan,  announced  on
              January 26, 1998, to reduce headcount by 15,000 to 18,000 over two
              years as part of the Company's overall cost reduction program.  In
              connection  with  this  plan,  a  voluntary  retirement  incentive
              program  (VRIP) was  offered  to  eligible  management  employees.
              Approximately 15,300 management employees accepted the VRIP offer.
              The  restructuring  charges of $2,743  include a pre-tax charge of
              $2,724  comprised  of  $2,412  for  pension  special   termination
              benefits  and  other  costs  and $312 for  postretirement  special
              termination  benefits  and  curtailment  losses.  AT&T  originally
              expected this amount to be partially offset by approximately  $1.1
              billion of gains to be recognized in the third and fourth quarters
              of  this  year  as  employees'  pension  benefit  obligations  are
              settled.  In the  third  quarter  1998 we  recognized  a $602 gain
              associated  with  the  settlement  of a  portion  of  the  pension
              obligations. The amount of the gain to be recognized in the fourth
              quarter is  subject to market  fluctuations,  and  therefore,  the
              initial amount forecasted for this gain is likely to change.

              The second  quarter  restructuring  charges of $2,743 also include
              pre-tax  charges of $125 for related  facility  costs and $150 for
              executive  separation  costs.  The  second  quarter  charges  were
              partially  offset  by the  reversal  of  $256  (pre-tax)  of  1995
              business  restructuring reserves resulting from the overlap of the
              VRIP  acceptance  rate on certain 1995 projects.  The impact was a
              reduction to diluted earnings per share of approximately $0.94.

              In addition to the $602 gain mentioned above, AT&T recorded $85 of
              TCG merger related expenses in the third quarter.  The net pre-tax
              benefit to AT&T was $517, or approximately $0.16 per share.

              In the first  three  quarters  of 1998 the net  restructuring  and
              other charges  discussed  above totaled $2,827  pre-tax,  or a net
              reduction to diluted earnings per share of approximately $0.98.

<PAGE>                                                     AT&T Form 10-Q Part I

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                 (Dollars in Millions Except Per Share Amounts)
                                   (Unaudited)


(c)           DISCONTINUED OPERATIONS
              Pursuant to Accounting  Principles Board Opinion No. 30 "Reporting
              the Results of Operations - Reporting the Effects of Disposal of a
              Segment of a Business, and Extraordinary, Unusual and Infrequently
              Occurring  Events  and  Transactions"  (APB  30) the  consolidated
              financial  statements of AT&T reflect the  dispositions  of AT&T's
              submarine   systems   business   (SSI)  which  was  sold  to  Tyco
              International  Ltd. on July 1, 1997 for $850, and the sale of AT&T
              Universal Card Services,  Inc. (UCS) which was sold to Citibank on
              April  2,  1998  for  $3,500,  as  discontinued  operations.   The
              after-tax  gains  resulting  from the disposals were $66, or $0.04
              per  share  for SSI and  $1,290,  or  $0.71  per  share  for  UCS.
              Accordingly,   the  revenues,  costs  and  expenses,   assets  and
              liabilities, and cash flows of SSI and UCS have been excluded from
              the respective captions in the Consolidated  Statements of Income,
              Consolidated  Balance Sheets and  Consolidated  Statements of Cash
              Flows,  and have been reported  through their  respective dates of
              disposition  as  "Income  from  discontinued  operations,"  net of
              applicable   income   taxes;   as  "Net  assets  of   discontinued
              operations";   and  as  "Net   cash   provided   by   discontinued
              operations."

              Summarized  financial  information   for  discontinued  operations
              is as follows:
                                            For the Three           For the Nine
                                            Months Ended          Months Ended
                                            September 30,         September 30,
                                            1998     1997         1998      1997

              Revenues                    $    -   $  376        $ 365    $1,564
              Income before
                income taxes                   -       26           16       138
              Net income                  $    -   $   20           10        89

                                    At September At December
                                        30, 1998    31, 1997
              Current assets              $    -   $7,734
              Total assets                     -    7,808
              Current liabilities*             -    5,602
              Total liabilities*               -    6,707
              Net assets of discontinued
                operations                $    -   $1,101

              *Current  liabilities  include $5,224 of  debt maturing within one
              year  and  total  liabilities  include  an  additional  $1,093  of
              long-term  debt  at December 31, 1997,  both of which were payable
              to AT&T.  On April 2, 1998,  we  received  $5,722 as settlement of
              these receivables from UCS.

              No interest  expense was allocated to discontinued  operations  in
              1998 or 1997 due  to the  immateriality  of the amounts;  however,
              UCS recorded

<PAGE>                                                   AT&T Form 10-Q - Part I



                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                 (Dollars in Millions Except Per Share Amounts)
                                   (Unaudited)

              direct interest expense  of $85 for  the nine  month period  ended
              September  30,  1998 and $75 and $216 for the three and nine month
              periods ended September 30, 1997, respectively.

(d)           RECLASSIFICATION
              We  have  reclassified  certain  prior period  amounts to  conform
              with our current presentation.

(e)           TELEPORT COMMUNICATIONS GROUP INC. MERGER
              On July 23, 1998, AT&T completed the merger with TCG,  pursuant to
              an agreement and plan of merger dated January 8, 1998.  Each share
              of TCG common stock was  exchanged  for 0.943 of AT&T common stock
              resulting  in  the  issuance  of  181.6  million   shares  in  the
              transaction.  The  merger  was  accounted  for  as  a  pooling  of
              interests,   and   accordingly,   AT&T's  results  of  operations,
              financial  position  and cash flows have been  restated to reflect
              the merger.  In the third quarter of 1998,  we  recognized  $85 of
              merger related expenses.

(f)           TELE-COMMUNICATIONS, INC. ACQUISITION
              On  June 24, 1998, AT&T signed a definitive  merger agreement with
              TCI for an  all-stock transaction.  Under the agreement, AT&T will
              issue 0.7757  shares of AT&T  common  stock for each  share of TCI
              Group Series A common stock and 0.8533 shares of AT&T common stock
              for each share of TCI Group Series B stock. The transaction, which
              is  subject  to  regulatory, shareowner  and  other  approvals, is
              expected  to  be  completed  in  the  first  half  of  1999.  Also
              announced  was   TCI's  intention to combine  Liberty Media Group,
              its  programming  arm, and  TCI  Ventures  Group,  its  technology
              investments  unit, to   form the new  Liberty  Media  Group.  Upon
              closing  of  the  AT&T/TCI  merger,  the  shareowners  of  the new
              Liberty  Media Group  will be  issued separate  tracking  stock by
              AT&T in  exchange for the  shares currently held  in Liberty Media
              Group and TCI Ventures Group.

<PAGE>                                                   AT&T Form 10-Q - Part I

                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                 (Dollars in Millions Except Per Share Amounts)
                                   (Unaudited)


(g)           JOINT VENTURE WITH BRITISH TELECOMMUNICATIONS PLC (BT)
 
              AT&T and BT announced  on  July 26, 1998,  that they will create a
              global  venture  to serve  the  complete  communications  needs of
              multinational  companies and  the  international  calling needs of
              individuals and businesses  around the  world. The venture,  which
              will be owned  equally  by AT&T and BT, will combine  trans-border
              assets and  operations of each company,  including  their existing
              international  networks,  all of  their international traffic, all
              of   their   trans-border   products  for  business  customers  --
              including  an expanding  set of Concert  services -- and  AT&T and
              BT's  multinational  accounts  in selected industry  sectors.  The
              formation  of  the  venture  is  subject  to  certain  conditions,
              including  receipt  of regulatory  approvals.  The  transaction is
              expected to be  completed  by mid 1999.  As a result of  the joint
              venture  agreement,   AT&T   will  be  required  to  exit  certain
              operations which may be determined to compete directly with BT.  A
              full review is currently underway to  determine the size and scope
              of any  related international  restructuring  charges.  Management
              expects to  have definitive plans in place by the end of 1998, and
              accordingly,  a  restructuring  charge associated with this review
              will be forthcoming in the fourth quarter.

(h)           EXTRAORDINARY LOSS
              In August 1998, AT&T  extinguished  $1,046 of debt associated with
              the TCG pooling. This early extinguishment of debt was recorded as
              an  extraordinary  loss and resulted in a $217 pre-tax  loss.  The
              after-tax  impact was $137, or $0.07 per diluted share.  This debt
              reduction  will produce  significant  savings in interest  expense
              over time.

<PAGE>                                                   AT&T Form 10-Q - Part I



                     MANAGEMENT'S DISCUSSION AND ANALYSIS OF
                  RESULTS OF OPERATIONS AND FINANCIAL CONDITION


OVERVIEW
On July 23, 1998, AT&T Corp. ("AT&T" or the "Company") completed the merger with
Teleport  Communications  Group Inc.  (TCG).  Each share of TCG common stock was
exchanged  for 0.943 of AT&T  common  stock  resulting  in an  issuance of 181.6
million shares in the transaction.  The merger was accounted for as a pooling of
interests,  and accordingly,  AT&T's historical  financial  statements have been
restated to reflect the combined results of AT&T and TCG.

Pursuant to Accounting Principles Board Opinion No. 30 "Reporting the Results of
Operations - Reporting  the Effects of Disposal of a Segment of a Business,  and
Extraordinary,  Unusual and Infrequently Occurring Events and Transactions" (APB
30) the  consolidated  financial  statements of AT&T reflect the dispositions of
AT&T's submarine  systems business (SSI),  which was sold to Tyco  International
Ltd. on July 1, 1997, and the sale of Universal Card Services,  Inc. (UCS) which
was sold to Citibank on April 2, 1998, as discontinued operations.  Accordingly,
the revenues, costs and expenses, assets and liabilities,  and cash flows of SSI
and UCS have been  excluded  from the  respective  captions in the  Consolidated
Statements of Income, Consolidated Balance Sheets and Consolidated Statements of
Cash Flows, and have been reported through their respective dates of disposition
as "Income from  discontinued  operations",  net of applicable  income taxes; as
"Net  assets  of  discontinued  operations";   and  as  "Net  cash  provided  by
discontinued operations."

AT&T's results of operations are discussed and analyzed for  consolidated  AT&T,
as well as by business segment: business services,  consumer services,  wireless
services, and other and corporate. Supplemental information is also included for
local services, new wireless services businesses,  AT&T Solutions,  WorldNet and
other on-line  services,  and  international  operations and ventures.  Earnings
before interest and taxes (EBIT), including other income, total assets and other
related  information  is discussed for the  consolidated  results of AT&T and by
business segment.

<PAGE>                                                   AT&T Form 10-Q - Part I


                     MANAGEMENT'S DISCUSSION AND ANALYSIS OF
                  RESULTS OF OPERATIONS AND FINANCIAL CONDITION

                                                Three months
                                                  ended
                                               September 30,         Change
$ in millions, except per share amounts       1998     1997        $       %

Total revenues.............................$13,653  $13,090   $   563     4.3%

OTHER INCOME STATEMENT ITEMS
Operating income...........................  3,312    1,747     1,565    89.7%
Operating margin...........................   24.3%    13.3%
Operating income, adjusted for
  third quarter 1998 net gain*.............  2,795    1,747     1,048    60.0%
Operating margin, adjusted for
  third quarter 1998 net gain*.............   20.5%    13.3%

EBIT.......................................  3,468    1,879     1,589    84.6%
EBIT, adjusted for third quarter
  1998 net gain*...........................  2,951    1,879     1,072    57.0%
EBITDA**...................................  4,676    2,914     1,762    60.5%
EBITDA, adjusted for third quarter
  1998 net gain*...........................  4,159    2,914     1,245    42.7%

Diluted earnings per share,
  continuing operations....................$  1.16  $  0.60   $  0.56    93.3%
Diluted earnings per share,
  continuing operations, adjusted for
  third quarter 1998 net gain*.............$  1.00  $  0.60   $  0.40    66.7%


                                               Nine months
                                                  ended
                                               September 30,         Change
$ in millions, except per share amounts       1998     1997        $       %

Total revenues.............................$39,695  $38,674   $  1,021    2.6%

OTHER INCOME STATEMENT ITEMS
Operating income...........................  4,144    4,845       (701) (14.5)%
Operating margin...........................   10.4%    12.5%
Operating income, adjusted for net charges,
  gains and reserve reversal*..............  6,971    4,905      2,066   42.1%
Operating margin, adjusted for net charges,
  gains and reserve reversal*..............   17.6%    12.7%

EBIT.......................................  5,313    5,216         97    1.9%
EBIT, adjusted for net charges,
  gains and reserve reversal*..............  7,370    5,179      2,191   42.3%
EBITDA**...................................  8,744    8,193        551    6.7%
EBITDA, adjusted for net charges,
  gains and reserve reversal*.............. 10,801    8,076      2,725   33.7%

Diluted earnings per share,
  continuing operations....................$  1.74  $  1.69   $   0.05    3.0%
Diluted earnings per share,
  continuing operations, adjusted for
  net charges, gains and reserve reversal*.$  2.45  $  1.68   $   0.77   45.8%

<PAGE>                                                   AT&T Form 10-Q - Part I




                     MANAGEMENT'S DISCUSSION AND ANALYSIS OF
                  RESULTS OF OPERATIONS AND FINANCIAL CONDITION


       * Operating  income in the third  quarter of 1998  included a net pre-tax
       benefit of $517 million,  or approximately $0.16 per diluted share, which
       consisted of a $602 million gain from pension  settlements related to the
       voluntary  retirement  incentive program (VRIP),  partially offset by $85
       million of TCG merger related expenses.

       Operating  income  for the  first  nine  months of 1998  included  $2,827
       million of  restructuring  and other charges,  with an after-tax  diluted
       earnings per share  reduction of  approximately  $0.98.  The year to date
       charges include a $601 million first quarter asset  impairment  charge, a
       $2,743 million second quarter net restructuring charge and a $517 million
       third  quarter net benefit as described  above.  EBIT for the nine months
       ended September 30, 1998, also included pre-tax gains on the sales of LIN
       Television  Corporation (LIN-TV) of $317 million, AT&T Solutions Customer
       Care of $350 million and AT&T's investment in SmarTone Telecommunications
       Holdings  Limited  (SmarTone) of $103 million.  After taxes,  these gains
       totaled approximately $0.27 per diluted share.

       Operating income for the nine months ended September 30, 1997,  contained
       a $160 million charge, or a reduction of approximately  $0.05 per diluted
       share,  for exiting the two-way  messaging  business  and a $100  million
       benefit,  or approximately  $0.03 per diluted share, from the reversal of
       pre-1995  restructuring  charges.  In addition,  EBIT also included a $97
       million  pre-tax gain, or  approximately  $0.03 per diluted share, on the
       sale of AT&T Skynet Satellite Services (Skynet).

       ** Earnings before interest, taxes, depreciation and amortization

The following  discussion,  unless noted, excludes the items mentioned above and
presents all earnings per share amounts on a diluted basis.

Revenues from  continuing  operations  increased  $563 million,  or 4.3%, in the
third  quarter  of 1998  compared  with the same  period in 1997.  Long-distance
services revenues were essentially flat compared with the third quarter of 1997,
while  calling  volume  increased  3.1%.  Revenues  from  continuing  operations
increased $1,021 million, or 2.6%, for the nine months ended September 30, 1998,
compared  with the same period in 1997.  Long-distance  services  revenues  were
essentially  flat  compared  with the first nine months of 1997,  while  calling
volume increased 4.1%.

<PAGE>                                                   AT&T Form 10-Q - Part I

                     MANAGEMENT'S DISCUSSION AND ANALYSIS OF
                  RESULTS OF OPERATIONS AND FINANCIAL CONDITION

Operating income  increased  $1,048 million,  or 60.0%, to $2,795 million in the
third  quarter  of 1998  compared  with the same  period in 1997.  For the third
quarter  of 1998,  operating  margin  showed  improvement  of 720  basis  points
compared with the third  quarter of 1997.  EBIT  increased  $1,072  million,  or
57.0%,  to $2,951  million from $1,879 million in the third quarter of 1997. The
year over year increases in both operating income and EBIT were primarily due to
the Company's cost reduction efforts as well as the effect of higher revenues.

Operating income  increased $2,066 million,  or 42.1%, to $6,971 million for the
nine months ended September 30, 1998, compared with the same period in 1997. For
the nine months ended September 30, 1998,  operating  margin increased 490 basis
points  compared  with the first  nine  months of 1997.  EBIT  increased  $2,191
million,  or 42.3%, to $7,370  million,  from $5,179 million in the in the first
nine months of 1997. The year over year  increases in both operating  income and
EBIT were primarily due to the net impact of higher revenues, the Company's cost
reduction  efforts,  and  lower  access  and  other  interconnection   expenses,
partially offset by higher depreciation and amortization expenses, which reflect
our continued high levels of capital expenditures.

<PAGE>                                                   AT&T Form 10-Q - Part I


                     MANAGEMENT'S DISCUSSION AND ANALYSIS OF
                  RESULTS OF OPERATIONS AND FINANCIAL CONDITION

In the third  quarter of 1998 EBITDA  increased  42.7% to $4,159  million,  from
$2,914 million in the third quarter of 1997. The  improvement  was primarily the
result of our cost reduction efforts and the effect of higher revenues.

For the nine months ended September 30, 1998,  EBITDA increased 33.7% to $10,801
million from $8,076 million for the first nine months of 1997.  The  improvement
was primarily due to the net impact of higher revenues,  cost reduction  efforts
and lower access and interconnection expenses.

In the third quarter of 1998 earnings per share from  continuing  operations was
approximately $1.00, an increase of approximately $0.40, or 66.7%, compared with
earnings per share of  approximately  $0.60 for the same period in 1997. For the
nine  months  ended  September  30,  1998,  earnings  per share from  continuing
operations was  approximately  $2.45,  an increase of  approximately  $0.77,  or
45.8%,  compared  with  earnings per share of  approximately  $1.68 for the same
period in 1997.


RESULTS OF OPERATIONS


                                                Three months
                                                  ended
                                                September 30,      Change
$ in millions                                 1998      1997     $       %

REVENUES
Business services..........................$ 5,823   $ 5,561  $ 262     4.7%
Consumer services..........................  5,806     5,977   (171)   (2.9)%
Wireless services..........................  1,420     1,190    230    19.4%
Other and corporate........................    913       692    221    31.8%
Eliminations...............................   (309)     (330)    21     6.4%
Total revenues.............................$13,653   $13,090  $ 563     4.3%


                                               Nine months
                                                  ended
                                               September 30,      Change
$ in millions                                 1998      1997     $       %

REVENUES
Business services..........................$17,196   $16,545 $  651     3.9%
Consumer services.......................... 17,089    17,778   (689)   (3.9)%
Wireless services..........................  3,897     3,461    436    12.6%
Other and corporate........................  2,462     1,891    571    30.1%
Eliminations...............................   (949)   (1,001)    52     5.2%
Total revenues.............................$39,695   $38,674 $1,021     2.6%

<PAGE>                                                   AT&T Form 10-Q - Part I


                     MANAGEMENT'S DISCUSSION AND ANALYSIS OF
                  RESULTS OF OPERATIONS AND FINANCIAL CONDITION

REVENUES
Revenue from continuing operations increased $563 million, or 4.3%, in the third
quarter of 1998  compared  with the third  quarter of 1997.  Revenue  growth for
business  services,  wireless  services and corporate  and other were  partially
offset by a decline in revenue from consumer  services.  Long-distance  services
revenues were essentially flat as calling volume increased 3.1%.

For the first nine months of 1998, revenues from continuing operations increased
$1,021  million,  or 2.6%,  compared with the same period in 1997.  Increases in
business  services,  other and  corporate  and wireless  services  revenues were
partially  offset by a  decline  in  consumer  services  revenue.  Long-distance
services  revenues were essentially flat for the nine months ended September 30,
1998, compared with the same period in 1997 as calling volume increased 4.1%.

OPERATING EXPENSES

Access and other  interconnection  expenses decreased $156 million,  or 3.9%, to
$3,819  million in the third  quarter of 1998 compared with the third quarter of
1997.  Access  and other  interconnection  expenses  for the nine  months  ended
September 30, 1998, decreased $839 million, or 6.7%, to $11,649 million compared
with the same period in 1997. The declines relate primarily to reductions in per
minute access expenses and AT&T's continuing efforts to manage access costs, and
to declines in  international  settlement  rates.  These reductions were largely
offset by Primary  Interexchange  Carrier Charges (PICC), AT&T's contribution to
the  Universal  Service  Fund  (USF)  and  volume  increases.  Access  and other
interconnection expenses as a percentage of long-distance services revenues were
33.0% in the  third  quarter  of 1998 and 34.5% in the  third  quarter  of 1997.
Access and other  interconnection  expenses  as a  percentage  of  long-distance
services revenues were 34.1% for the first nine months of 1998 and 36.4% for the
first nine months of 1997.

Network and other  communication  expenses  increased  $60 million,  or 2.4%, to
$2,515  million in the third  quarter of 1998 compared with the same period last
year.  The  increase  was due  primarily  to higher  wireless  costs and  higher
expenditures for wireless  handsets  primarily as a result of demand for Digital
One Rate plans. In addition, the increase reflects higher costs due to growth of
AT&T Solutions' services. These increases were partially offset by reduced rates
for payphone compensation and a lower provision for uncollectible expenses.

<PAGE>                                                   AT&T Form 10-Q - Part I

                     MANAGEMENT'S DISCUSSION AND ANALYSIS OF
                  RESULTS OF OPERATIONS AND FINANCIAL CONDITION


Network and other  communications  services expenses increased $201 million,  or
2.9%, to $7,268 million for the first nine months of 1998 compared with the same
period of 1997.  The increase was due  primarily  to higher  wireless  costs and
higher  expenditures for wireless  handsets  primarily as a result of demand for
Digital One Rate plans. In addition,  the increase  reflects higher costs due to
growth in AT&T Solutions'  services.  These increases were partially offset by a
lower provision for uncollectibles,  lower costs as a result of the sale of AT&T
Solutions Customer Care in the first quarter of 1998, reduced rates for payphone
compensation  and the two-way  messaging charge recorded in the first quarter of
1997.

Depreciation and  amortization  expenses for the third quarter of 1998 increased
$175  million,  or 17.2%,  from the third  quarter  of 1997.  For the nine month
period  ended  September  30,  1998,   depreciation  and  amortization  expenses
increased $461 million,  or 15.7%,  from the same period in 1997.  Excluding the
$80 million impact of the two-way messaging charge in the first quarter of 1997,
depreciation expense increased $541 million, or 19.0%, for the nine months ended
September 30, 1998, compared with the same period in 1997. The increases for the
quarter and the year to date periods were primarily due to continued high levels
of capital expenditures.

<PAGE>                                                   AT&T Form 10-Q - Part I


                     MANAGEMENT'S DISCUSSION AND ANALYSIS OF
                  RESULTS OF OPERATIONS AND FINANCIAL CONDITION


Selling,  general and administrative  (SG&A) expenses decreased $564 million, or
14.5%, in the third quarter of 1998 compared with the third quarter of 1997. For
the nine months ended September 30, 1998, SG&A expenses  decreased $928 million,
or 8.2%,  compared  with the same period in 1997.  The reduced level of expenses
reflects AT&T's efforts to achieve a best-in-class cost structure, including the
removal of $1.6 billion in SG&A  expenses  from the business in 1998  (excluding
TCG) and a 22% ratio of SG&A expenses to revenues by the end of 1999.  Excluding
TCG, SG&A expenses  declined $626 million,  or 16.3%, for the quarter and $1,061
million,  or 9.5%,  for the first  nine  months of 1998  compared  with the same
periods last year. The decreases were due primarily to savings from cost control
initiatives such as headcount  reductions.  Also contributing to the decrease in
SG&A  expenses  was a decline in  marketing  and sales  costs  relating to lower
customer acquisition costs. These declines were partially offset by increases in
wireless customer acquisition and migration costs and increased costs associated
with the year 2000  initiative.  SG&A expenses as a percentage of total revenues
decreased to 24.4% in the third quarter of 1998 compared with 29.8% in the third
quarter of 1997. For the nine months ended  September 30, 1998, SG&A expenses as
a percentage of total  revenues  decreased to 26.2% for the first nine months of
1998 compared with 29.3% for the first nine months of 1997.

<PAGE>                                                   AT&T Form 10-Q - Part I



                     MANAGEMENT'S DISCUSSION AND ANALYSIS OF
                  RESULTS OF OPERATIONS AND FINANCIAL CONDITION

During the third  quarter of 1998 AT&T  recorded a net  pre-tax  benefit of $517
million,  or  approximately  $0.16 per share,  which consisted of a $602 million
gain from pension settlements  related to VRIP,  partially offset by $85 million
of TCG merger related expenses.

During the second quarter of 1998 AT&T recorded  restructuring and other charges
of $2,743 million,  or  approximately  $0.94 per share,  primarily in connection
with a plan,  announced  on January 26, 1998,  to reduce  headcount by 15,000 to
18,000 over two years as part of the Company's  overall cost reduction  program.
In connection with this plan, a voluntary  retirement  incentive  program (VRIP)
was offered to eligible management  employees.  Approximately  15,300 management
employees  accepted the VRIP offer. The restructuring  charges of $2,743 million
include a pre-tax  charge of $2,724  million,  comprised  of $2,412  million for
pension  special  termination  benefits  and other  costs and $312  million  for
postretirement   special  termination  benefits  and  curtailment  losses.  AT&T
originally  estimated this amount to be partially offset by  approximately  $1.1
billion of gains to be recognized in the third and fourth  quarters of this year
as employees' pension benefit obligations are settled. The amount of gains to be
recognized in future periods is subject to market  fluctuations,  and therefore,
the initial amount forecasted for this gain is likely to change.

The second quarter  restructuring charges of $2,743 million also include pre-tax
charges of $125  million  for  facility  costs and $150  million  for  executive
separation  costs.  The second  quarter  charges  were  partially  offset by the
reversal of $256  million  (pre-tax)  of 1995  business  restructuring  reserves
primarily resulting from the overlap of VRIP on certain 1995 projects.

In the first quarter of 1998 AT&T recorded a $601 million charge, or a reduction
of  approximately  $0.21 per share,  related to the  Company's  decision  not to
pursue Total  Service  Resale  (TSR) as a local  service  strategy.  The pre-tax
charge  includes a $543 million  write-down of software,  $42 million  primarily
related to equipment  associated with the software  platform and $16 million for
the termination of certain contracts.  The Company's  in-market  experiences and
results  have proven that the TSR  solution is not  economically  viable for the
short-term or the long-term.

In the first three  quarters of 1998,  the net  restructuring  and other charges
discussed above totaled $2,827 million  pre-tax,  or a net reduction to earnings
per share of approximately $0.98.

AT&T continues its financial and operational review of the various  alternatives
for entering the local market,  including the impacts associated with the merger
with  TCG and the  pending  merger  with  Tele-Communications,  Inc.  (TCI).  In
addition,  certain  fixed  assets  which  were  purchased  as part of the  local
initiative are currently being  evaluated in conjunction  with the TCG merger to
determine if any assets are impaired. Management expects to complete this review
by the end of the fourth quarter.

<PAGE>                                                   AT&T Form 10-Q - Part I


                     MANAGEMENT'S DISCUSSION AND ANALYSIS OF
                  RESULTS OF OPERATIONS AND FINANCIAL CONDITION

OTHER INCOME STATEMENT ITEMS
Other income-net  increased $24 million,  or 18.4%, to $156 million in the third
quarter of 1998  compared  with the same period in 1997.  The  increase  was due
primarily  to an increase  in interest  income on  temporary  cash  investments,
partially  offset by decreases in net equity earnings from investments and other
miscellaneous  transactions,  none of which are  individually  significant.  The
increase in interest  income is due to cash  received  from Citibank on April 2,
1998, related to the sale of UCS.

For the nine months ended September 30, 1998,  other  income-net  increased $798
million, or 214.9%, to $1,169 million compared with the same period in 1997. The
increase was due  primarily  to pre-tax  gains  associated  with the strategy of
exiting  non-strategic  businesses.  In 1998, we recorded  gains on the sales of
AT&T  Solutions  Customer  Care of $350  million,  LIN-TV  of $317  million  and
SmarTone of $103 million, as well as an increase in interest income on temporary
cash  investments  due to the cash  received  from Citibank for the sale of UCS.
These  increases  were partially  offset by the $97 million  pre-tax gain on the
sale of Skynet in 1997.

Interest expense  increased $39 million,  or 53.9%, in the third quarter of 1998
compared with the same period in 1997.  Interest expense  increased $81 million,
or 33.9%,  for the nine months ended September 30, 1998,  compared with the same
period in 1997.  These  increases  were  mainly due to the  reclassification  of
interest expense from discontinued operations to continuing operations resulting
from AT&T not  retiring  all of the UCS related  debt upon the sale of UCS.  The
$1,046  million  debt  reduction  in the  third  quarter  of 1998  will  produce
significant savings in interest expense over time.

The  provision for income taxes  increased  $532  million,  or 73.3%,  to $1,258
million in the third  quarter of 1998  compared  with the third  quarter of 1997
primarily  due to the increase in earnings  before taxes  partially  offset by a
lower  effective tax rate.  The effective  income tax rate decreased to 37.5% in
the third  quarter  of 1998 from 40.3% in the third  quarter of 1997.  The third
quarter 1997  effective tax rate was impacted by the tax impacts of certain 1997
investment  dispositions and the pooling of TCG's historical  operating results.
The restructuring and other charges for the third quarter of 1998 did not have a
significant impact on the overall effective tax rate.

The  provision  for income taxes  decreased  $137  million,  or 6.9%,  to $1,840
million for the nine months ended  September  30, 1998,  compared  with the same
period in 1997.  The decrease was due  primarily to a lower  effective tax rate.
The effective tax rate for the nine months ended  September 30, 1998, was 36.9%,
a decrease of 280 basis  points from 39.7% for the nine months  ended  September
30, 1997. The decrease in the effective tax rate was  principally due to the tax
impacts of certain  investment  dispositions  and certain  foreign  legal entity
restructurings.  For the first nine months of 1998 the  restructuring  and other
charges did not have a significant impact on the overall effective tax rate.

<PAGE>                                                   AT&T Form 10-Q - Part I


                     MANAGEMENT'S DISCUSSION AND ANALYSIS OF
                  RESULTS OF OPERATIONS AND FINANCIAL CONDITION



Income from  discontinued  operations  decreased $20 million and $79 million for
the three month and nine month periods ended  September 30, 1998,  compared with
the  same  periods  of 1997.  In 1998 the  results  of  discontinued  operations
included  the  results of UCS. In 1997 the  results of  discontinued  operations
included  the  results of both UCS and SSI.  On July 1, 1997,  AT&T sold SSI for
$850 million,  resulting in a after-tax gain of $66 million, or $0.04 per share.
On April 2, 1998,  AT&T sold UCS for $3,500  million,  resulting in an after-tax
gain of $1,290 million, or $0.71 per share.

In August 1998, AT&T extinguished $1,046 million of debt associated with the TCG
pooling. This early extinguishment of debt was recorded as an extraordinary loss
and resulted in a $217  million  pre-tax  loss.  The  after-tax  impact was $137
million,  or $0.07 per  share.  This debt  reduction  will  produce  significant
savings in interest expense over time.



SEGMENT RESULTS
AT&T's  results  are  segmented  according  to the  Company's  primary  lines of
business:  business services, consumer services, and wireless services. A fourth
segment,  identified  as other  and  corporate,  includes  the  results  of AT&T
Solutions, TCG, international operations and ventures,  on-line services such as
AT&T WorldNet  Internet  access,  and various other items.  The results of these
four segments  plus the impact of the  elimination  of internal  business sum to
AT&T's total results.  The following is a discussion of each of these  segments,
as well as  supplemental  information on local services,  new wireless  services
businesses,   AT&T  Solutions,   WorldNet  and  other  on-line   services,   and
international operations and ventures.

Total  assets  for  each  segment   include  all  assets,   except   interentity
receivables.  Deferred taxes,  prepaid pension assets,  and  corporate-owned  or
leased real estate are held at the corporate level and therefore are included in
the other and  corporate  segment.  Shared  network  assets are allocated to the
segments  based on the prior  three  years'  volumes  and are  reallocated  each
January.

BUSINESS SERVICES
Business services results reflect sales of long-distance  services (domestic and
international, inbound and outbound, inter- and intraLATA toll services, calling
card and operator-handled  services, data services,  messaging and other network
enabled services),  local services and web hosting and other electronic commerce
services.

<PAGE>                                                   AT&T Form 10-Q - Part I


                     MANAGEMENT'S DISCUSSION AND ANALYSIS OF
                  RESULTS OF OPERATIONS AND FINANCIAL CONDITION

                                            Three months
                                               ended
                                          September 30,          Change
$ in millions                           1998          1997      $       %
Revenue..............................$ 5,823      $  5,561  $  262     4.7%

EBIT.................................  1,471         1,110     361    32.5%
EBITDA...............................  2,042         1,565     477    30.5%

OTHER ITEMS
Capital additions....................$ 1,292      $  1,144  $  148    13.0%

                                            Nine months
                                               ended
                                           September 30,         Change
$ in millions                           1998          1997      $       %
Revenue..............................$17,196      $ 16,545  $  651     3.9%

EBIT.................................  3,850         3,354     496    14.8%
EBIT, excluding gain on Skynet.......  3,850         3,257     593    18.2%
EBITDA...............................  5,451         4,636     815    17.6%
EBITDA, excluding gain on Skynet.....  5,451         4,539     912    20.1%

OTHER ITEMS
Capital additions....................$ 3,009      $  2,448  $  561    22.9%

                                  At Sept. 30,    At Dec. 31,    Change
                                        1998          1997      $       %
Total assets*........................$16,782      $ 15,030  $1,752    11.7%

* Includes  allocated  shared network assets of $11,417 and $10,246 at September
30, 1998, and December 31, 1997, respectively.

REVENUE
Business services revenue in the third quarter increased $262 million,  or 4.7%,
compared  with the third  quarter of 1997.  Business  services  revenue  grew to
$17,196  million in the nine months  ended  September  30, 1998,  compared  with
$16,545  million for the nine months ended  September  30, 1997,  an increase of
$651 million, or 3.9%. Adjusted for the sales of Tridom and Skynet, revenue grew
4.3%,  for the nine months  ended  September  30, 1998,  compared  with the same
period in 1997,  although growth was tempered by an outage in AT&T's frame relay
network in April 1998. Data services led the growth in business services revenue
with an  increase  in the  high-teens  for the  three  month  period  and in the
mid-teens for the nine month period ended September 30, 1998.

<PAGE>                                                   AT&T Form 10-Q - Part I

                     MANAGEMENT'S DISCUSSION AND ANALYSIS OF
                  RESULTS OF OPERATIONS AND FINANCIAL CONDITION


Long-distance  services  revenue for the third  quarter of 1998  increased  4.4%
compared with the third quarter of 1997.  Long-distance calling volume increased
at a mid-single digit rate for the quarter.  For the nine months ended September
30, 1998,  long-distance  services revenue increased 3.7% compared with the same
period  in 1997 with a  high-single  digit  increase  in  long-distance  calling
volume.  The volume  increases  for both  periods  were led by growth in inbound
calling.

Voice-related  revenue for the three and nine months ended  September  30, 1998,
was essentially  flat compared with the same periods last year, as volume growth
continued to be offset by declines in average revenue per minute.  For the third
quarter,  price  declines have occurred due primarily to changes in product mix,
competitive forces and growth in lower-priced minutes. For the nine months ended
September 30, 1998,  price  declines have occurred due primarily to  competitive
forces, changes in product mix and growth in lower-priced minutes. Lower volumes
of higher  priced card and  operator-handled  services,  which are  increasingly
being replaced by wireless services,  also contributed to the decline in average
revenue per minute.

<PAGE>                                                   AT&T Form 10-Q - Part I



                     MANAGEMENT'S DISCUSSION AND ANALYSIS OF
                  RESULTS OF OPERATIONS AND FINANCIAL CONDITION

EBIT/EBITDA
The  following  discussion  excludes the first  quarter 1997 gain on the sale of
Skynet.

EBIT increased to $1,471  million,  or 32.5%,  in the third quarter of 1998 from
$1,110 million in the same period of 1997.  EBITDA  increased to $2,042 million,
or 30.5%, in the third quarter of 1998 from $1,565 in the same period last year.
EBIT increased to $3,850 million,  or 18.2%, for the nine months ended September
30, 1998,  from $3,257 million in the same period in 1997.  EBITDA  increased to
$5,451 million,  or 20.1%, for the first nine months of 1998 from $4,539 million
for the nine months ended  September  30,  1997.  The  increases  were driven by
growth in revenues as well as progress toward AT&T's company-wide cost reduction
goals. In particular, streamlining of customer care and sales support functions,
including significant headcount reductions contributed to the increases.

OTHER ITEMS
Capital additions increased $148 million, or 13.0%, in the third quarter of 1998
compared with the third quarter of 1997. For the nine months ended September 30,
1998, capital additions increased $561 million, or 22.9%, compared with the same
period in 1997.  Capital  additions  for the first nine  months of 1998  include
investments  in AT&T's SONET program,  data networks,  and the AT&T Digital Link
product for local service.

Total assets increased $1,752 million, or 11.7%, to $16,782 million at September
30, 1998, from December 31, 1997. The increase was primarily due to 1998 capital
expenditures and the reallocation of shared network assets,  partially offset by
current year depreciation.

CONSUMER SERVICES
Consumer  services  results reflect sales of long-distance  services  (including
domestic and international, inter- and intraLATA toll services, calling card and
operator  handled  calling,  and  prepaid  calling  cards) and local  service to
certain residential customers.

<PAGE>                                                   AT&T Form 10-Q - Part I


                     MANAGEMENT'S DISCUSSION AND ANALYSIS OF
                  RESULTS OF OPERATIONS AND FINANCIAL CONDITION

                                           Three months
                                               ended
                                          September 30,             Change
$ in millions                          1998           1997        $        %
Revenue.............................$ 5,806        $ 5,977   $  (171)    (2.9)%

EBIT................................  1,755          1,330       425     32.0%
EBITDA..............................  1,930          1,550       380     24.7%

OTHER ITEMS
Capital additions...................$   103        $   239   $  (136)   (56.9)%


                                             Nine months
                                               ended
                                             September 30,          Change
$ in millions                          1998           1997        $        %
Revenue.............................$17,089        $17,778   $  (689)    (3.9)%

EBIT................................  4,647          3,572     1,075     30.1%
EBITDA..............................  5,166          4,158     1,008     24.3%

OTHER ITEMS
Capital additions...................$   243        $   558   $  (315)   (56.5)%

                                  At September 30, At Dec. 31,      Change
                                       1998           1997        $        %
Total assets*.......................$ 6,743        $ 7,923   $(1,180)   (14.9)%

* Includes allocated shared network assets of $2,969 and $4,168 at September 30,
1998, and December 31, 1997, respectively.


REVENUE
Consumer  services  revenue  for the three  months  ended  September  30,  1998,
deceased $171 million, or 2.9%, compared with the same period last year. For the
nine months ended September 30, 1998,  revenues decreased $689 million, or 3.9%.
Calling  volume  decreased  at a  low-single-digit  rate for both  periods.  The
decline in revenue  for the three and nine  months  ended  September  30,  1998,
reflected  the impact of AT&T's  strategy to focus on high value  customers  and
actively migrate them to more favorable calling plans. Revenue also continued to
be pressured as AT&T flowed  through access charge  reductions to customers.  In
the third  quarter,  as part of the ongoing effort to pass through access charge
reductions, AT&T introduced a first minute free on Saturday program.

The controlled  migration of customers to more favorable  calling plans is a key
part of AT&T's  strategy to attract and retain  profitable  customers  in a cost
efficient  manner.  As a result of this  strategy,  AT&T now has over 25 million
customers  on its One Rate  plans,  including  more than 12  million on One Rate
Plus. In the quarter more than 75% of AT&T's consumer long-distance minutes were
generated by customers on optional calling plans.  Also, the Company's  emphasis
on high-value customers results in fewer customer  acquisitions and a lower cost
structure.  While this approach continues to restrain revenue and volume growth,
it is key to AT&T's strategy of optimizing its customer base.

<PAGE>                                                   AT&T Form 10-Q - Part I


                     MANAGEMENT'S DISCUSSION AND ANALYSIS OF
                  RESULTS OF OPERATIONS AND FINANCIAL CONDITION

Competition in domestic and international  long-distance markets,  including the
impact of dial around,  contributed  to the negative  revenue and volume  growth
rates, as did substitution of calling card and other higher-priced long-distance
services  for  wireless  services.  Reductions  in  international  long-distance
pricing consistent with falling international  settlement rates also contributed
to the decrease in revenue.


EBIT/EBITDA
For the three months ended September 30, 1998,  EBIT increased $425 million,  or
32.0%, to $1,755 million and EBITDA increased $380 million,  or 24.7%, to $1,930
million.  For the nine months ended  September 30, 1998,  EBIT increased  $1,075
million,  or 30.1%, to $4,647 million and EBITDA  increased  $1,008 million,  or
24.3%, to $5,166 million.  These increases were driven primarily by reduced SG&A
expenses.  AT&T's  focus on  high-value  customers  has led to  lower,  yet more
productive customer  acquisition and retention program spending.  Simplification
and  consolidation  of  marketing   messages  had  also  generated   substantial
efficiencies,  and consumer  services has increased  its use of alternate,  more
efficient   distribution   channels.   For  example,  One  Rate  On-line  offers
activation,  customer care and billing over the Internet with payment via credit
card.

OTHER ITEMS
Total assets decreased $1,180 million,  or 14.9%, to $6,743 million at September
30, 1998,  from December 31, 1997. The decrease was due primarily to the January
reallocation of shared network assets.

<PAGE>                                                   AT&T Form 10-Q - Part I


                     MANAGEMENT'S DISCUSSION AND ANALYSIS OF
                  RESULTS OF OPERATIONS AND FINANCIAL CONDITION

WIRELESS SERVICES
Wireless  services  results  include sales of wireless  services and products to
customers in 850 MHz cellular markets and 1.9 GHz markets. Also included are the
results of the messaging, aviation communications,  and wireless data divisions,
as  well  as the  costs  associated  with  the  development  of  fixed  wireless
technology.  The  impact  of the new 1.9 GHz  markets,  wireless  data,  two-way
messaging and fixed wireless development are discussed as "new wireless services
businesses"; all other wireless results are reflected as "core" businesses.

TOTAL WIRELESS SERVICES


                                            Three months
                                               ended
                                           September 30,          Change
$ in millions                           1998          1997       $       %
Revenue..............................$ 1,420       $ 1,190    $ 230    19.4%

EBIT.................................     33           142     (109)  (76.9)%
EBITDA...............................    324           367      (43)  (11.6)%

OTHER ITEMS
Capital additions....................$   221       $   419    $(198)  (47.2)%



                                            Nine months
                                               ended
                                            September 30,         Change
$ in millions                           1998          1997       $       %
Revenue..............................$ 3,897       $ 3,461    $ 436    12.6%

EBIT.................................    215           270      (55)  (20.3)%
EBIT excluding SmarTone gain
 and two-way messaging charge........    112           430     (318)  (74.0)%
EBITDA...............................  1,035           990       45     4.6%
EBITDA excluding SmarTone gain
 and two-way messaging charge........    932         1,070     (138)  (12.8)%

OTHER ITEMS
Capital additions....................$   634       $ 1,542    $(908)  (58.9)%

                                   At Sept. 30,   At Dec. 31,     Change
                                        1998          1997       $       %
Total assets.........................$18,047       $18,540    $(493)   (2.7)%

<PAGE>                                                   AT&T Form 10-Q - Part I


                     MANAGEMENT'S DISCUSSION AND ANALYSIS OF
                  RESULTS OF OPERATIONS AND FINANCIAL CONDITION

REVENUE
Wireless  services revenue grew $230 million,  or 19.4%, in the third quarter of
1998 and $436 million,  or 12.6%,  for the nine months ended September 30, 1998,
compared  with the same  periods of 1997.  The  increases  in both  periods were
driven in part by the response to AT&T's  Digital One Rate offer and new 1.9 GHz
markets.  Interest  in  Digital  One  Rate  helped  generate  325  thousand  net
subscriber additions during the third quarter of 1998, a 73.7% increase compared
with the same period last year,  and slightly  above the previous  record set in
the second  quarter of 1998.  This was  achieved  in spite of the  multi-network
phone shortage experienced during much of the third quarter.

Digital One Rate is one key element of our ongoing efforts to acquire and retain
profitable,  high-value  customers.  Since the  program's  launch in May of this
year,  over 500 thousand  subscribers  have signed on to this service.  AT&T has
continued to add  customers at a rate of  approximately  100 thousand per month.
Over two thirds of these customers have represented new subscribers to AT&T. The
program was partially responsible for AT&T's higher revenue per user and minutes
of use per  subscriber.  In AT&T's 850 MHz  markets,  average  revenue  per user
(ARPU)  increased to $58.0 in the third quarter of 1998 from $57.5 in the second
quarter  of  1998.   ARPU  has  now  increased  in  two   successive   quarters.
Year-over-year  ARPU  declined  4.0%.  Minutes of use per  subscriber  increased
within our 850 MHz markets to a 36% growth rate over the third  quarter of 1997;
well above the 4% and 16% growth rates achieved in the first and second quarters
of 1998, respectively.

Migration  of  customers  to digital  service is another  key  element of AT&T's
wireless  strategy.  Digital service  generates lower network costs and improves
customer  retention.  As of  September  30, 1998,  53% of AT&T's  6.809  million
consolidated  subscribers used digital service,  up from 45% one quarter ago and
up from 24% at September 30, 1997.  Including  partnership  markets, the Company
had 4.2 million digital subscribers at the end of the third quarter of 1998.

Total  cellular  customers  served by  companies  in which  AT&T has or shares a
controlling  interest  increased  17.4% to 9.148  million at September 30, 1998,
from 7.789 million at September 30, 1997.

<PAGE>                                                   AT&T Form 10-Q - Part I



                     MANAGEMENT'S DISCUSSION AND ANALYSIS OF
                  RESULTS OF OPERATIONS AND FINANCIAL CONDITION

EBIT/EBITDA
The following  discussion  excludes the second  quarter 1998 gain on the sale of
SmarTone  and the  first  quarter  1997  charge  to exit the  two-way  messaging
business.

EBIT and EBITDA were $33 million and $324  million,  respectively,  in the third
quarter of 1998, a decrease of $109 million and $43 million, or 76.9% and 11.6%,
from $142  million  and $367  million,  in the third  quarter of 1997.  EBIT and
EBITDA were $112  million and $932  million for the first nine months of 1998, a
decrease of $318 million and $138 million, or 74.0% and 12.8%, from $430 million
and $1,070  million for the first nine months of 1997.  The  decreases  for both
EBIT and EBITDA were due  primarily to higher  losses for new wireless  services
businesses in the current periods compared with the prior year periods.

EBIT and EBITDA for new wireless services  businesses were negative $143 million
and negative $91 million for third  quarter of 1998,  compared with negative $97
million and negative $80 million for the third quarter of 1997.  EBIT and EBITDA
for new wireless  services  businesses  were  negative $458 million and negative
$317 million for first nine months of 1998,  compared with negative $196 million
and  negative  $163  million for the first nine months of 1997.  The declines in
both EBIT and EBITDA  for new  wireless  businesses  were due  primarily  to the
roll-out of additional markets over the past twelve months.

Core EBIT and EBITDA were $176 million and $415 million in the third  quarter of
1998, compared with $239 million and $447 million for the same period last year.
For the nine months ended  September  30,  1998,  core EBIT and EBITDA were $570
million and $1,249  million,  compared with $626 million and $1,233  million for
the same period last year. The decreases in EBIT and EBITDA for the three months
ended  September 30, 1998,  compared with September 30, 1997, were primarily due
to incremental acquisition and migration costs associated with higher subscriber
additions and digital migrations.  The decrease in core EBIT for the nine months
ended  September  30,  1998,  compared  with the same  period  last year was due
primarily to an increase in network and other  communication  services expenses,
depreciation   and   amortization   expenses  and  lower  equity  earnings  from
non-consolidated subsidiaries,  partially offset by higher revenue. The increase
in core EBITDA for the nine months ended  September 30, 1998,  compared with the
same period last year was due primarily to higher revenue partially offset by an
increase in network and other  communication  services expenses and lower equity
earnings from non-consolidated subsidiaries.

<PAGE>                                                   AT&T Form 10-Q - Part I



                     MANAGEMENT'S DISCUSSION AND ANALYSIS OF
                  RESULTS OF OPERATIONS AND FINANCIAL CONDITION

OTHER ITEMS
Capital additions decreased $198 million to $221 million in the third quarter of
1998 compared with the same period last year.  Capital additions  decreased $908
million to $634  million for the nine month  period  ended  September  30, 1998,
compared with $1,542 million for the same period in 1997.  These  decreases were
primarily  due to the  substantial  completion of the majority of AT&T's 1.9 GHz
market buildouts in 1997.  Capital  spending for the  year-to-date  period ended
September  30,  1998,  was directed  primarily at expanding  coverage in new and
traditional markets.

Total assets  decreased  $493  million,  or 2.7%,  from  December 31, 1997.  The
decrease  was due  primarily to a decrease in  investments  as a result of asset
dispositions in 1998 as well as a decrease in licensing costs due to the current
year amortization.


NEW WIRELESS SERVICES BUSINESSES

                                           Three months
                                              ended
                                          September 30,          Change
$ in millions                          1998           1997      $       %
Revenue..............................$  121         $    6   $ 115     NMF

EBIT.................................  (143)           (97)    (46)   (47.2)%
EBITDA...............................   (91)           (80)    (11)   (14.5)%

OTHER ITEMS
Capital additions....................$   94         $  248   $(154)   (62.2)%



                                            Nine months
                                               ended
                                             September 30,       Change
$ in millions                          1998           1997      $       %
Revenue..............................$  214         $   11   $ 203     NMF

EBIT.................................  (458)          (356)   (102)   (28.6)%
EBIT excluding two-way messaging
  charge.............................  (458)          (196)   (262)  (133.6)%
EBITDA...............................  (317)          (243)    (74)   (30.4)%
EBITDA excluding two-way messaging
  charge.............................  (317)          (163)   (154)   (94.5)%

OTHER ITEMS
Capital additions....................$  293         $1,031   $(738)   (71.5)%

                                  At Sept. 30,    At Dec. 31,     Change
                                       1998           1997      $        %
Total assets.........................$4,459         $4,417   $  42      1.0%

<PAGE>                                                   AT&T Form 10-Q - Part I



                     MANAGEMENT'S DISCUSSION AND ANALYSIS OF
                  RESULTS OF OPERATIONS AND FINANCIAL CONDITION

CORE WIRELESS SERVICES
                                           Three months
                                               ended
                                           September 30,           Change
$ in millions                           1998           1997      $       %
Revenue..............................$ 1,299        $ 1,184  $  115     9.7%

EBIT.................................    176            239     (63)  (26.2)%
EBITDA...............................    415            447     (32)   (6.9)%

OTHER ITEMS
Capital additions....................$   127        $   171  $  (44)  (25.2)%


                                            Nine months
                                               ended
                                           September 30,           Change
$ in millions                           1998           1997      $       %
Revenue..............................$ 3,683        $ 3,450  $  233     6.8%

EBIT.................................    673            626      47     7.5%
EBIT excluding gain on SmarTone......    570            626     (56)   (8.9)%
EBITDA...............................  1,352          1,233     119     9.7%
EBITDA excluding gain on SmarTone....  1,249          1,233      16     1.3%

OTHER ITEMS
Capital additions....................$   341        $   511  $ (170)  (33.3)%

                                   At Sept. 30,    At Dec. 31,    Change
                                        1998           1997      $       %
Total assets.........................$13,588        $14,123  $ (535)   (3.8)%

<PAGE>                                                   AT&T Form 10-Q - Part I



                     MANAGEMENT'S DISCUSSION AND ANALYSIS OF
                  RESULTS OF OPERATIONS AND FINANCIAL CONDITION

OTHER AND CORPORATE
Other and corporate includes TCG, AT&T Solutions,  international  operations and
ventures, AT&T WorldNet, other businesses, and corporate operations.


                                             Three months
                                                ended
                                             September 30,           Change
$ in millions                              1998        1997         $       %
Revenue................................$    913     $   692    $   221    31.8%

EBIT...................................     218        (702)       920   131.5%
EBIT, excluding third quarter
  1998 net gain........................    (299)       (702)       403    57.3%
EBITDA.................................     389        (567)       956   169.2%
EBITDA, excluding third quarter
  1998 net gain........................$   (128)    $  (567)   $   439    77.2%

OTHER ITEMS
Capital additions......................$    347     $   330    $    17     4.9%


                                             Nine months
                                               ended
                                             September 30,            Change
$ in millions                              1998        1997         $       %
Revenue................................$  2,462     $ 1,891    $   571    30.1%

EBIT...................................  (3,379)     (1,977)    (1,402)  (71.0)%
EBIT, excluding certain net charges,
  gains and reserve reversal...........  (1,219)     (2,077)       858    41.2 %
EBITDA.................................  (2,888)     (1,588)    (1,300)  (82.0)%
EBITDA, excluding certain net charges,
  gains and reserve reversal...........$   (728)    $(1,688)   $   960    56.7%

OTHER ITEMS
Capital additions......................$    986     $ 1,039    $   (53)   (5.0)%

                                     At Sept. 30,  At Dec. 31,       Change
                                           1998        1997         $       %
Total assets...........................$ 16,589     $18,501    $(1,912)  (10.3)%

REVENUE
In the  third  quarter  of 1998,  other and  corporate  revenue  increased  $221
million,  or 31.8%,  from the third quarter of 1997.  The revenue  growth in the
third  quarter  was driven by  increased  revenue  from TCG and AT&T  Solutions.
Revenue growth was partially offset by a decrease in revenue from AT&T Solutions
Customer Care, which was sold on March 3, 1998.

For the nine months  ended  September  30,  1998,  other and  corporate  revenue
increased  $571 million,  or 30.1%,  compared with the same period of 1997.  The
revenue growth in the first nine months of 1998 compared with the same period in
1997 was  primarily  due to  increases  in TCG,  AT&T  Solutions,  international
operations  and ventures,  and AT&T  WorldNet.  These  increases  were partially
offset by a decrease in revenue from AT&T  Solutions  Customer  Care,  which was
sold on March 3, 1998.

<PAGE>                                                   AT&T Form 10-Q - Part I


                     MANAGEMENT'S DISCUSSION AND ANALYSIS OF
                  RESULTS OF OPERATIONS AND FINANCIAL CONDITION

EBIT/EBITDA
The following discussion excludes the impact of the 1998 restructuring and other
charges, the 1998 gains on the sales of LIN-TV and AT&T Solutions Customer Care,
as well as the first quarter 1997 reversal of pre-1995 restructuring reserves.

EBIT and EBITDA improved by $403 million,  or 57.3%, and $439 million, or 77.2%,
respectively,  in the third  quarter of 1998  compared with the third quarter of
1997.  The  quarter  over  quarter  improvements  in both EBIT and  EBITDA  were
primarily due to increased  interest income from temporary cash investments,  an
improvement  at  AT&T  Solutions,  reductions  in  corporate  overhead,  and  an
improvement at international operations and ventures.

EBIT and EBITDA improved by $858 million,  or 41.2%, and $960 million, or 56.7%,
respectively,  in the first nine  months of 1998  compared  with the nine months
ended September 30, 1997. The  improvements  for the nine months ended September
30, 1998, compared with the same period in 1997, were primarily due to increased
interest   income  on  temporary   cash   investments,   improvements   at  both
international  operations  and  ventures  and  AT&T  Solutions,   reductions  in
corporate overhead and an improvement at AT&T WorldNet.

OTHER ITEMS
Total  assets at  September  30, 1998 were $16,589  million.  This  represents a
decrease of $1,912  million,  or 10.3%,  from December 31, 1997. The decrease is
due primarily to a decrease in other  receivables due primarily to the repayment
of loans by UCS as part of the  settlement  for our April 2, 1998 sale of UCS to
Citicorp,  partially  offset by an increase in cash resulting from the remaining
proceeds from the sale of UCS.

ELIMINATIONS
Eliminations  reflects the  elimination  of revenue and profit  generated by the
sale of services between business segments.  The sale of business  long-distance
services to other AT&T units  generates  nearly all of the  eliminated  revenue.
Revenue  eliminations  for the third quarter of 1998 were $309  million,  a 6.4%
decrease in eliminated revenues from the third quarter of 1997, due primarily to
the sale of AT&T Solutions  Customer Care. EBIT and EBITDA were both negative $9
million for the third quarter of 1998.

Revenue  eliminations  for the nine months ended  September 30, 1998,  were $949
million, a 5.2% decrease in eliminated  revenues from the same period last year,
due primarily to the sale of AT&T Solutions  Customer Care. EBIT and EBITDA were
both negative $20 million for the nine months ended September 30, 1998.

SUPPLEMENTAL DISCLOSURES

LOCAL SERVICES
Local  services for business and  residential  customers are included as part of
AT&T's business services,  consumer services,  and other and corporate segments.
Other and corporate includes TCG's local business (but excludes ACC Corp. (ACC))
and the costs associated with corporate staff dedicated to AT&T's local services
effort.

<PAGE>                                                   AT&T Form 10-Q - Part I



                     MANAGEMENT'S DISCUSSION AND ANALYSIS OF
                  RESULTS OF OPERATIONS AND FINANCIAL CONDITION

                                           Three months
                                               ended
                                           September 30,         Change
$ in millions                           1998          1997     $        %
Revenue..............................$   247        $  147  $ 100     67.4%

EBIT.................................   (227)         (248)    21      8.6%
EBIT excluding TCG merger related
  costs..............................   (142)         (248)   106     42.9%
EBITDA...............................   (150)         (187)    37     20.5%
EBITDA excluding TCG merger related
  costs..............................    (65)         (187)   122     65.9%

OTHER ITEMS
Capital additions....................$   283        $  334  $ (51)   (15.0)%



                                            Nine months
                                               ended
                                           September 30,         Change
$ in millions                           1998          1997     $        %
Revenue..............................$   682        $  372  $ 310     83.1%

EBIT................................. (1,261)         (652)  (609)   (93.3)%
EBIT excluding TCG merger related
  expenses and asset
  impairment charge..................   (575)         (652)    77     11.9%
EBITDA............................... (1,028)         (499)  (529)  (105.6)%
EBITDA excluding TCG merger related
  expenses and asset
  impairment charge..................   (342)         (499)   157     31.7%

OTHER ITEMS
Capital additions....................$   919        $  779  $ 140     18.1%

                                    At Sept. 30,   At Dec. 31,   Change
                                        1998          1997     $        %
Total assets.........................$ 3,402        $4,068  $(666)   (16.4)%

REVENUE
For the three months ended September 30, 1998,  revenue  increased $100 million,
or 67.4%,  compared  with the same  period in 1997.  For the nine  months  ended
September 30, 1998, revenue increased $310 million, or 83.1%,  compared with the
same period in 1997.  These increases were due to continued  growth in the local
operations of TCG and AT&T Digital Link.  Revenue growth for local operations of
TCG was  driven  by  growth  in  private  line,  switch  usage  and  facilities,
interconnection and data/Internet services.

<PAGE>                                                   AT&T Form 10-Q - Part I



                     MANAGEMENT'S DISCUSSION AND ANALYSIS OF
                  RESULTS OF OPERATIONS AND FINANCIAL CONDITION

EBIT/EBITDA
The  following  discussion  excludes the impact of the first  quarter 1998 asset
impairment charge and the third quarter 1998 TCG merger related expenses.

For the three months ended  September 30, 1998,  EBIT improved $106 million,  or
42.9%,  compared  with the same  period  in 1997.  For the  three  months  ended
September 30, 1998,  EBITDA improved $122 million,  or 65.9%,  compared with the
same period in 1997. These  improvements were primarily due to revenue growth in
TCG and AT&T Digital Link combined with an improved cost structure.

For the nine months ended  September  30, 1998,  EBIT  improved $77 million,  or
11.9%,  compared  with  the same  period  in 1997.  For the  nine  months  ended
September 30, 1998,  EBITDA improved $157 million,  or 31.7%,  compared with the
same period in 1997. These increases were driven by revenue growth, primarily in
TCG,  partially  offset by higher  local  connectivity  costs due to  increasing
volume with more access and subscriber lines than in 1997.

OTHER ITEMS
Capital  additions  were $283 million for the three months ended  September  30,
1998, compared with $334 million in the same period last year. Capital additions
increased  $140  million for the nine month  period  ended  September  30, 1998,
compared with the same period last year. Capital spending for local services was
primarily  related to expansion,  development  and  construction  of TCG's local
network.

Total  assets were $3,402  million at  September  30,  1998,  a decrease of $666
million,  or 16.4%,  compared  with  December  31,  1997.  The  decrease was due
primarily to the first quarter write-down of software.

NEW WIRELESS SERVICES BUSINESSES
Information  related to AT&T's new wireless  services  businesses is included in
the wireless services' segment discussion.

AT&T SOLUTIONS
AT&T Solutions is the Company's outsourcing and network management business. The
results of AT&T Solutions are included in the other and corporate segment.

<PAGE>                                                   AT&T Form 10-Q - Part I



                     MANAGEMENT'S DISCUSSION AND ANALYSIS OF
                  RESULTS OF OPERATIONS AND FINANCIAL CONDITION

                                            Three months
                                               ended
                                           September 30,         Change
$ in millions                          1998           1997      $       %

Revenue..............................$  273         $  204   $  69    34.5%

EBIT.................................    16            (37)     53   142.7%
EBITDA...............................    53              1      52     NMF

OTHER ITEMS
Capital additions....................$   42         $   28   $  14    52.3%

                                            Nine months
                                               ended
                                           September 30,         Change
$ in millions                          1998           1997      $       %

Revenue..............................$  732         $  546   $ 186    34.2%

EBIT.................................     3           (140)    143   101.9%
EBITDA...............................   109            (28)    137   488.8%

OTHER ITEMS
Capital additions....................$   92         $   65   $  27    42.6%

                                    At Sept. 30,   At Dec. 31,    Change
                                       1998           1997      $       %
Total assets.........................$  569         $  576   $  (7)   (1.2)%

REVENUE
For the three months ended September 30, 1998, revenue increased $69 million, or
34.5%,  to $273  million,  compared  with the same period in 1997.  For the nine
months ended September 30, 1998,  revenue  increased $186 million,  or 34.2%, to
$732  million,  compared  with the same  period in 1997.  These  increases  were
primarily  due to growth in  outsourcing.  During the third quarter we announced
the signing of a six year  contract  with Banc One,  valued at $1.4 billion over
the contract term. The unit currently has more than $4 billion under contract to
be recognized over the related contract terms.

Although not included in the unit's revenue,  AT&T Solutions also manages AT&T's
information  technology  infrastructure  -- an  operation  that is  valued at an
estimated $1.6 billion in internal  billings  annually.  Total internal billings
for the quarter were $402 million and year-to-date were $1,182 million.

<PAGE>                                                   AT&T Form 10-Q - Part I


                     MANAGEMENT'S DISCUSSION AND ANALYSIS OF
                  RESULTS OF OPERATIONS AND FINANCIAL CONDITION


EBIT/EBITDA
For the three months ended  September 30, 1998,  EBIT increased $53 million,  or
142.7%, to $16 million,  compared with the same period in 1997. EBITDA increased
$52 million,  to $53 million,  in the third  quarter of 1998,  compared with the
same  period  in 1997.  For the nine  months  ended  September  30,  1998,  EBIT
increased $143 million, or 101.9%, to $3 million,  compared with the same period
in 1997. EBITDA increased $137 million, or 488.8%, to $109 million, in the first
nine months of 1998,  compared  with the same period in 1997.  The  increases in
both EBIT and EBITDA for the  quarter and year to date  periods  were due to the
net impact of revenue growth and cost reductions.

OTHER ITEMS
Total assets were $569 million at September 30, 1998. Approximately 50% of total
assets at  September  30, 1998 were related to  servicing  the internal  network
infrastructure of AT&T.

<PAGE>                                                   AT&T Form 10-Q - Part I



                     MANAGEMENT'S DISCUSSION AND ANALYSIS OF
                  RESULTS OF OPERATIONS AND FINANCIAL CONDITION

WORLDNET AND OTHER ON-LINE SERVICES
WorldNet and other  on-line  services  includes AT&T  WorldNet  Internet  access
service for residential and business consumers (included in other and corporate)
as well as Worldwide  Web site hosting and other  electronic  commerce  services
(included in business services).

                                            Three months
                                               ended
                                           September 30,         Change
$ in millions                          1998           1997      $       %
Revenue..............................$  100         $   61    $ 39    65.1%

EBIT.................................  (104)          (124)     20    16.2%
EBITDA...............................   (88)          (117)     29    24.5%

OTHER ITEMS
Capital additions....................$   13         $   51    $(38)  (73.5)%


                                            Nine months
                                               ended
                                           September 30,         Change
$ in millions                          1998           1997      $       %
Revenue..............................$  262         $  152    $110    72.7%

EBIT.................................  (328)          (435)    107    24.6%
EBITDA...............................  (287)          (414)    127    30.7%

OTHER ITEMS
Capital additions....................$   32         $   78    $(46)  (58.4)%

                                  At Sept. 30,    At Dec. 31,    Change
                                       1998           1997      $       %
Total assets.........................$  354         $  334    $ 20     5.9%

REVENUE
For the three months ended September 30, 1998, revenue increased $39 million, or
65.1%,  to $100  million  compared  with the same  period in 1997.  For the nine
months ended September 30, 1998,  revenue  increased $110 million,  or 72.7%, to
$262  million  compared  with the nine months  ended  September  30,  1997.  The
increases were primarily due to continued growth in AT&T WorldNet's  residential
subscriber base and higher average  revenue per subscriber,  which was primarily
due to the expiration of AT&T WorldNet's free-pricing promotion that was offered
in 1997.  WorldNet had 1.156 million  subscribers at September 30, 1998, up from
 .963 million at September 30, 1997.  This is an increase of 20.0%  compared with
the prior year.  Average  revenue per customer  continued to increase due to the
expiration of AT&T  WorldNet's  initial  promotional  price programs in favor of
regular  monthly  rates  of  $9.95  and  $19.95.  AT&T  Web  Site  Services  had
approximately  9 thousand  hosted sites at the end of the third  quarter of 1998
compared with 5 thousand at the end of the third quarter of 1997.

<PAGE>                                                   AT&T Form 10-Q - Part I



                     MANAGEMENT'S DISCUSSION AND ANALYSIS OF
                  RESULTS OF OPERATIONS AND FINANCIAL CONDITION

AT&T  continues  to explore new ways of growing its  Internet  access  business,
primarily through AT&T WorldNet and other on-line businesses.

EBIT/EBITDA
For the three months ended  September 30, 1998,  EBIT  improved $20 million,  or
16.2%, to negative $104 million,  compared with the same period in 1997. For the
three months ended September 30, 1998, EBITDA improved $29 million, or 24.5%, to
negative $88 million,  compared  with the same period in 1997.  These  increases
were  driven by  revenue  growth in AT&T  WorldNet,  partially  offset by higher
network  costs which were driven by an  increase in the  residential  subscriber
base.

For the nine months ended  September 30, 1998,  EBIT  improved $107 million,  or
24.6%,  to negative $328 million  compared with the same period last year.  This
improvement was driven by AT&T WorldNet  revenue growth and decreased  marketing
and sales expense in EasyLink,  partially offset by higher depreciation  expense
as a result of the expansion of the WorldNet network.  For the nine months ended
September 30, 1998,  EBITDA  improved $127 million,  or 30.7%,  to negative $287
million  compared with the same period last year. The  improvement was driven by
revenue  growth in AT&T  WorldNet and  decreased  marketing and sales expense in
EasyLink.

<PAGE>                                                   AT&T Form 10-Q - Part I


                     MANAGEMENT'S DISCUSSION AND ANALYSIS OF
                  RESULTS OF OPERATIONS AND FINANCIAL CONDITION


INTERNATIONAL OPERATIONS AND VENTURES
International  operations  and ventures  includes  AT&T's  consolidated  foreign
operations, the Company's transit and reorigination businesses, on-line services
in the  Asia/Pacific  region,  as well as the equity  earnings/losses  of AT&T's
non-consolidated joint ventures.  International operations and ventures does not
include  bilateral   international   long-distance   traffic.  (The  results  of
international operations and ventures are included in other and corporate.)

                                            Three months
                                                ended
                                           September 30,         Change
$ in millions                          1998           1997      $       %
Revenue..............................$  218         $  178   $  40    22.7%

EBIT.................................   (40)           (82)     42    51.3%
EBITDA...............................   (28)           (71)     43    60.5%

OTHER ITEMS
Capital additions....................$   37         $   69   $ (32)  (46.1)%

                                             Nine months
                                                ended
                                            September 30,         Change
$ in millions                          1998           1997      $       %
Revenue..............................$  598         $  494   $ 104    21.2%

EBIT.................................  (161)          (343)    182    53.0%
EBITDA...............................  (116)          (299)    183    61.3%

OTHER ITEMS
Capital additions....................$   86         $  377   $(291)  (77.3)%

                                  At Sept. 30,    At Dec. 31,    Change
                                       1998           1997      $       %
Total assets.........................$1,432         $1,837   $(405)  (22.0)%

<PAGE>                                                   AT&T Form 10-Q - Part I


                     MANAGEMENT'S DISCUSSION AND ANALYSIS OF
                  RESULTS OF OPERATIONS AND FINANCIAL CONDITION


REVENUE
For the three months ended September 30, 1998, revenue increased $40 million, or
22.7%,  to $218  million  compared  with the same  period in 1997.  For the nine
months ended September 30, 1998,  revenue  increased $104 million,  or 21.2%, to
$598 million,  compared with the same period last year. These revenue  increases
were driven by growth in  reorigination  and AT&T  Communications  Services  UK,
partially offset by declines in certain non-strategic  businesses.  Revenue from
continuing strategic international operations grew approximately 53% and 55% for
the three and nine months ended September 30, 1998, respectively,  compared with
the same periods in 1997 primarily as a result of growth in AT&T  Communications
UK and increased reorigination traffic.

EBIT/EBITDA
For the three months ended  September 30, 1998,  EBIT  improved $42 million,  or
51.3%,  to negative $40 million  compared  with the same period in 1997.  EBITDA
improved $43 million,  or 60.5%, to negative $28 million  compared with the same
period in 1997. For the nine months ended September 30, 1998, EBIT improved $182
million,  or 53.0%,  to negative  $161 million  compared with the same period in
1997. EBITDA improved $183 million, or 61.3%, to negative $116 million, compared
with the first nine months of 1997. The EBIT and EBITDA  improvements  continued
in the quarter and year to date as revenues  increased and the Company continued
to  streamline  its   international   operations  and  exit   non-strategic  and
unprofitable  businesses.  Revenue  grew 22.7% in the  quarter and 21.2% year to
date despite the exit of these businesses.

         Management  is  currently  assessing  the  impact  of the  announcement
regarding  the joint  venture to be formed with British  Telecommunications  PLC
(BT) on international  operations and ventures. As a result of the joint venture
agreement,  AT&T  will be  required  to exit  certain  operations  which  may be
determined to compete  directly with BT. A full review is currently  underway to
determine the size and scope of any related international restructuring charges.
Management  expects to have  definitive  plans in place by the end of 1998,  and
accordingly,  a  restructuring  charge  associated  with  this  review  will  be
forthcoming in the fourth quarter.

OTHER ITEMS
Capital additions decreased $291 million for the nine months ended September 30,
1998, compared with the same period last year. The decrease was primarily due to
a decrease in investments in non-consolidated subsidiaries.

Total assets were $1,432  million at September  30, 1998,  compared  with $1,837
million at December  31, 1997.  The  decrease is due  primarily to a decrease in
cash  resulting  from a loan to an  affiliated  entity and due to a reduction in
receivables  due primarily to the settlement of the  receivable  relating to the
sale of SSI.

<PAGE>                                                   AT&T Form 10-Q - Part I


                     MANAGEMENT'S DISCUSSION AND ANALYSIS OF
                  RESULTS OF OPERATIONS AND FINANCIAL CONDITION

FINANCIAL CONDITION

SEPTEMBER 30, 1998 VERSUS DECEMBER 31, 1997

                                   September 30,  December 31,       Change
$ in millions                           1998          1997         $        %
Total assets.........................$58,161       $61,095     $(2,934)   (4.8)%
Total assets-continuing operations...$58,161       $59,994     $(1,833)   (3.1)%

Total assets decreased $2,934 million, or 4.8%,  primarily due to divestments of
non-strategic  assets partially  offset by investments in strategic  businesses.
Declines  in other and  long-term  receivables,  net  assets  from  discontinued
operations,  and  investments  were  partially  offset  by  increases  in  cash,
property,  plant and  equipment  and other  assets.  The  decrease  in other and
long-term  receivables is due primarily to the repayment of loans by UCS as part
of the settlement for our April 2, 1998,  sale to Citicorp while the decrease in
net assets from  discontinued  operations  also  reflects  the sale of UCS.  The
decline in investments is primarily due to the sales of LIN-TV and SmarTone. The
increase in cash is mainly due to the cash  received from Citibank in the second
quarter  of 1998  related  to the sale of UCS  partially  offset by cash used to
repurchase  common stock and to extinguish  $1,046 million in debt. The increase
in  property,  plant and  equipment  primarily  reflects the  investment  in the
expansion of the  long-distance,  local  communications  and  wireless  networks
partially  offset  by the local  asset  impairment  charge  and the sale of AT&T
Solutions  Customer  Care.  The  increase in other  assets is  primarily  due to
goodwill associated with our purchase of ACC.

Total liabilities  decreased $3,323 million, or 8.9%,  primarily due to declines
in debt,  payroll and  benefit-related  liabilities,  deferred income taxes, and
accounts  payable.  These decreases were partially  offset by increases in other
current liabilities and long-term benefit-related  liabilities. The decreases in
both short-term and long-term debt reflect the paydown of debt with the proceeds
from the sales of UCS,  LIN-TV and AT&T  Solutions  Customer Care as well as the
early  extinguishment  of debt,  mentioned  above.  The  decline in payroll  and
benefit-  related  liabilities  primarily  reflects  the payout of the  year-end
payroll accrual and employee bonuses,  and the reversal of a portion of the 1995
business  restructuring reserve. The decrease in deferred income taxes primarily
reflects the impact of the  restructuring and other charges while the decline in
accounts payable is primarily due to a decrease in payables  associated with our
high year-end capital expenditures. The increase in other current liabilities is
mainly due to an increase in accrued income taxes primarily  associated with the
sale of UCS. The increase in long-term benefit-related  liabilities is primarily
due to the second quarter charges associated with the VRIP which resulted in the
establishment of a liability for the Management Pension Plan.

Total shareowners'  equity increased $389 million,  or 1.6%, to $24,067 million,
primarily due to current  year's net income  partially  offset by the AT&T share
re-purchase  program,  as discussed in the cash flows  narrative,  and dividends
declared.

The ratio of total  debt to total  capital  at  September  30,  1998,  was 22.8%
compared with 33.5% at December 31, 1997.  The decrease was primarily the result
of lower debt.  The ratio of total debt, net of cash, to total capital was 10.7%
at September 30, 1998.

<PAGE>                                                   AT&T Form 10-Q - Part I



                     MANAGEMENT'S DISCUSSION AND ANALYSIS OF
                  RESULTS OF OPERATIONS AND FINANCIAL CONDITION


In the  normal  course  of  business  AT&T  uses  certain  derivative  financial
instruments,  mainly  interest  rate swaps and foreign  currency  exchange  rate
contracts.  The interest rate swaps and foreign  currency  contracts and options
allow the  Company  to manage  its  exposures  to  changing  interest  rates and
currency exchange rates. AT&T does not use derivative financial  instruments for
speculative purposes. Credit policies are designed to limit the risks of dealing
with other parties to these instruments. In management's view, the risks to AT&T
from using these  derivative  financial  instruments  are small and the benefits
include  more  stable  earnings  in periods  when  interest  rates and  currency
exchange rates are changing.

The Company has  revolving  credit  facilities  of $1.0 billion at September 30,
1998. The credit facilities are intended for general corporate  purposes,  which
include support for AT&T's  commercial  paper,  and were unused at September 30,
1998.

<PAGE>                                                   AT&T Form 10-Q - Part I


                     MANAGEMENT'S DISCUSSION AND ANALYSIS OF
                  RESULTS OF OPERATIONS AND FINANCIAL CONDITION

CASH FLOWS

NINE MONTHS ENDED SEPTEMBER 30, 1998,VERSUS NINE MONTHS ENDED SEPTEMBER 30, 1997

Cash flows  provided by operating  activities of continuing  operations  for the
nine months ended September 30, 1998,  were $6,841  million.  This represents an
increase of $1,144  million  compared  with the first nine  months of 1997.  The
increase in operating cash flow was driven primarily by the approximately $1,400
million   increase  in  income  from   continuing   operations   excluding   the
restructuring and other charges and the gains on sales which have essentially no
impact on operating cash flows.

For the nine months  ended  September  30,  1998,  cash  provided  by  investing
activities of $6,965 million increased $10,402 million from a $3,437 million use
of cash for the nine months ended  September 30, 1997,  due primarily to the UCS
sale on April 2, 1998,  for which we received  $5,722  million in  settlement of
receivables as well as $3,500  million in proceeds from the sale.  Additionally,
in 1998 we received $742  million,  $625 million and $183 million from the sales
of LIN-TV, AT&T Solutions Customer Care and SmarTone, respectively.

Net cash used in  financing  activities  of  $10,026  million  increased  $7,950
million from $2,076  million for the first nine months of 1997.  This  primarily
reflects  the use of cash  received  from 1998  asset  dispositions  to  paydown
commercial  paper and the repurchase of  approximately $3 billion of AT&T common
stock in connection with the Company's share repurchase program described below.
In addition, we used cash to retire $1,046 million of long-term debt obligations
associated with the TCG pooling as well as repay  approximately  $900 million of
scheduled  debt  maturities.  The Company paid a premium of  approximately  $200
million  associated  with the  early  extinguishment  resulting  in an after tax
charge of $137 million which was recorded as an extraordinary loss.

In July  1998,  AT&T's  Board  of  Directors  authorized  an open  market  share
repurchase program to repurchase up to $3 billion of AT&T common stock.  Between
July 23 and  September  30,  1998,  AT&T  repurchased  approximately  53 million
shares. As announced previously,  AT&T expects to reissue the repurchased shares
as part of the shares to be issued in connection with the TCI merger.

<PAGE>                                                   AT&T Form 10-Q - Part I



                     MANAGEMENT'S DISCUSSION AND ANALYSIS OF
                  RESULTS OF OPERATIONS AND FINANCIAL CONDITION

RECENT PRONOUNCEMENTS
Beginning  with the 1998  annual  report we will adopt  Statement  of  Financial
Accounting  Standards  (SFAS)  No.  131,   "Disclosures  about  Segments  of  an
Enterprise and Related  Information." SFAS No. 131 establishes the standards for
the manner in which  public  enterprises  are required to report  financial  and
descriptive  information  about their operating  segments.  The standard defines
operating  segments as components of an enterprise for which separate  financial
information  is  available  and  evaluated  regularly  as a means for  assessing
segment performance and allocating resources to segments. A measure of profit or
loss,  total assets and other related  information  are required to be disclosed
for each  operating  segment.  In addition,  this  standard  requires the annual
disclosure of:  information  concerning  revenues  derived from the enterprise's
products or services;  countries in which it earns revenues or holds assets, and
major customers.

In February 1998, the Financial  Accounting  Standards  Board (FASB) issued SFAS
No.  132,  "Employers'   Disclosure  about  Pensions  and  Other  Postretirement
Benefits."  Among  other   provisions,   it  standardizes   certain   disclosure
requirements for pension and other postretirement benefits,  requires additional
information  on  changes  in the  benefit  obligations  and fair  values of plan
assets, and eliminates certain other disclosures.  The standard is effective for
fiscal years  beginning  after  December 15, 1997.  For AT&T this means that the
standard is effective  for the 1998 annual  report.  Since the standard  applies
only  to  the   presentation  of  pension  and  other   postretirement   benefit
information,  it will not have any  impact  on  AT&T's  results  of  operations,
financial position or cash flows.

In March 1998, the American  Institute of Certified  Public  Accountants  issued
Statement of Position (SOP) 98-1, "Accounting for the Costs of Computer Software
Developed  or  Obtained  for  Internal  Use. " Among other  provisions,  the SOP
requires that  entities  capitalize  certain  internal-use  software  costs once
certain  criteria are met. The SOP is effective  for  financial  statements  for
fiscal  years  beginning  after  December 15,  1998,  though  early  adoption is
encouraged. For AT&T this means that it must be adopted no later than January 1,
1999.  If AT&T  elects  to  adopt  the SOP  earlier  than  the  effective  date,
restatement  of  interim  periods  during  the  year of  adoption  is  required.
Management is currently  assessing the impact on AT&T's  consolidated  financial
statements.

In June  1998,  the  FASB  issued  SFAS  No.  133,  "Accounting  for  Derivative
Instruments and Hedging Activities.  " Among other provisions,  it requires that
entities  recognize  all  derivatives  as either  assets or  liabilities  in the
statement of financial  position and measure  those  instruments  at fair value.
Gains and losses resulting from changes in the fair values of those  derivatives
would be accounted  for  depending on the use of the  derivative  and whether it
qualifies  for hedge  accounting.  This  standard is effective  for fiscal years
beginning  after June 15,  1999,  though  earlier  adoption  is  encouraged  and
retroactive  application  is  prohibited.  For AT&T this means that the standard
must be adopted no later than  January 1, 2000.  Management  does not expect the
adoption  of this  standard  to have a  material  impact  on AT&T's  results  of
operations, financial position or cash flows.

<PAGE>                                                   AT&T Form 10-Q - Part I



                     MANAGEMENT'S DISCUSSION AND ANALYSIS OF
                  RESULTS OF OPERATIONS AND FINANCIAL CONDITION


OTHER DEVELOPMENTS
On July 23, 1998,  AT&T completed the merger with TCG,  pursuant to an agreement
and plan of merger  dated  January 8, 1998.  Each share of TCG common  stock was
exchanged  for  0.943  of  AT&T  common  stock  resulting  in  the  issuance  of
approximately 181.6 million shares in the transaction.  The merger was accounted
for as a pooling of interests,  and  accordingly,  AT&T's results of operations,
financial  position and cash flows have been restated to reflect the merger.  In
the third quarter of 1998, we recognized $85 of merger related expenses.

On March 3, 1998, AT&T agreed to sell WOOD-TV,  its television  station in Grand
Rapids,   Michigan,   for  approximately   $123  million,   subject  to  certain
adjustments, which is expected to close in the fourth quarter of 1998.

On June 24, 1998,  AT&T signed a  definitive  merger  agreement  with TCI for an
all-stock  transaction.  Under the  agreement,  AT&T will issue 0.7757 shares of
AT&T common  stock for each share of TCI Group  Series A common stock and 0.8533
shares of AT&T  common  stock for each  share of TCI Group  Series B stock.  The
transaction, which is subject to regulatory,  shareowner and other approvals, is
expected to be completed  in the first half of 1999.  Also  announced  was TCI's
intention to combine Liberty Media Group,  its programming arm, and TCI Ventures
Group,  its  technology  investments  unit, to form the new Liberty Media Group.
Upon closing of the AT&T/TCI  merger,  the  shareowners of the new Liberty Media
Group will be issued separate  tracking stock by AT&T in exchange for the shares
currently held in Liberty Media Group and TCI Ventures Group.

AT&T and BT announced on July 26, 1998 that they will create a global venture to
serve the communications needs of multinational  companies and the international
calling needs of individuals and businesses around the world. The venture, which
will be owned  equally  by AT&T and BT,  will  combine  trans-border  assets and
operations of each company, including their existing international networks, all
of their international  traffic, all of their trans-border products for business
customers - including an expanding  set of Concert  services - and AT&T and BT's
multinational  accounts in  selected  industry  sectors.  The  formation  of the
venture  is  subject  to certain  conditions,  including  receipt of  regulatory
approvals.  The transaction is expected to be completed by mid 1999. As a result
of the joint venture agreement, AT&T will be required to exit certain operations
which may be determined to compete  directly with BT. A full review is currently
underway  to  determine  the  size  and  scope  of  any  related   international
restructuring  charges.  Management expects to have definitive plans in place by
the end of 1998, and accordingly,  a restructuring  charge  associated with this
review will be forthcoming in the fourth quarter.

<PAGE>                                                   AT&T Form 10-Q - Part I

                     MANAGEMENT'S DISCUSSION AND ANALYSIS OF
                  RESULTS OF OPERATIONS AND FINANCIAL CONDITION

YEAR 2000
AT&T is  preparing  its systems and  applications  for the year 2000 (Y2K).  The
problem the Y2K program  addresses is the use of two-digit instead of four-digit
year fields in computer  systems.  If the computer  systems  cannot  distinguish
between  the year 1900 and the year  2000,  system  failures  or other  computer
errors could result.  The potential for failures and errors spans all aspects of
our business,  including computer systems, voice and data networks, and building
infrastructures.  We are also faced with addressing our  interdependencies  with
our suppliers and connecting  carriers and our major  customers,  which all face
the same problem.

The AT&T Y2K  Program is  enterprise-wide  and is focused on four  inter-related
categories  which are  critical  to  maintaining  uninterrupted  service  to our
customers:  AT&T  networks,  AT&T-developed  applications,  and  their  external
interfaces  and the  information  technology  (IT)  platforms  that  support the
applications.  Additionally,  the  Company  has a Y2K  program  in place for its
non-IT  infrastructure,  which is essential to conduct our business, but is less
critical to serving the needs of AT&T's customers.  The key milestones common to
each category are:  assessment,  repair/remediation,  testing and certification.
AT&T  monitors  and tracks the  progress of the Y2K program  through a series of
scorecards which capture the activities related to the Y2K process phases.  AT&T
has a target of December 31, 1998 for the completion of assessment, revision and
testing of all customer-affecting  systems that were part of AT&T's inventory as
of January 1, 1998.  The Y2K plans for AT&T Local Services  (including  TCG) are
being  integrated  into the overall AT&T plan and have  targeted  completion  of
assessment by year-end 1998, with revision and testing  scheduled for completion
by the end of the  first  quarter  of 1999.  AT&T is also  evaluating  TCI's Y2K
program to  understand  the potential  impact on the existing AT&T program.  All
numbers  cited in this Form 10-Q,  Part I exclude  information  regarding  those
recent and pending  acquisitions,  whose programs are still being  evaluated and
planned for integration into the overall AT&T year 2000 program planning.

<PAGE>                                                   AT&T Form 10-Q - Part I

                     MANAGEMENT'S DISCUSSION AND ANALYSIS OF
                  RESULTS OF OPERATIONS AND FINANCIAL CONDITION



Program Status
AT&T has approximately 3,000 internally developed applications that (1) directly
support AT&T's voice and data  telecommunications  services (including wired and
wireless); (2) are critical to the provisioning, administration, maintenance and
customer  service/support  related to our  telecommunications  services; and (3)
support our sales and marketing organizations,  other AT&T services and internal
administrative functions. These applications represent 350 million lines of code
that must be assessed,  repaired and tested.  As of September 30, 1998, AT&T has
completed 99% of the assessment,  approximately 91% of the repair, and about 67%
of the application testing. The Company expects to have completed the assessment
phase for the Company as a whole in 1998 and to be about 97% and 90% complete in
the repair and certification phases, respectively, in 1998, and 100% complete in
1999.

The AT&T network is critical to providing top quality,  reliable service to AT&T
customers.  AT&T's goal is to maintain this quality,  and provide  uninterrupted
service  at  the  turn  of  the  century.  In  addition  to  the  AT&T-developed
applications  supporting the network,  AT&T has inventoried  over 800 externally
purchased  network elements (NE) including  switches,  routers,  network control
points and signal transfer  points.  All of the NEs have been assessed:  80% are
non-impacted,  and  plans  are  in  place  regarding  Y2K-certification  of  the
remaining  20% by the end of  1998.  Additional  Y2K  testing  is  conducted  to
independently verify supplier claims of compliance. After operating system (OS)/
NE  component  testing  and   certification  is  complete,   AT&T  will  perform
integration  testing  to verify  Y2K-certification  of NEs in  conjunction  with
associated  OS/applications.  At September  30, 1998,  the  assessment of the OS
applications  was 100%  complete,  and 99% and 96%  complete  for the repair and
certification phases, respectively.  At September 30, 1998, NE certification was
approximately  64%  complete.  AT&T  expects  to  complete  all  phases of OS/NE
certification  by year-end  1998,  with full  deployment by midyear 1999.   AT&T
plans to conduct  interoperability testing with other carriers during 1999 after
the involved networks have achieved Y2K-compliance.

<PAGE>                                                   AT&T Form 10-Q - Part I

                     MANAGEMENT'S DISCUSSION AND ANALYSIS OF
                  RESULTS OF OPERATIONS AND FINANCIAL CONDITION



With respect to external (third party) interface assessment, formal letters have
been sent to about 2,000 domestic telecommunications companies and international
telecommunications  authorities  to request  information  on their Y2K plans and
targets for compliance.  The Company has identified  about 1,000 different types
of third party  interfaces and about 10,000 total instances of those types,  and
are in the process of assessing  the Y2K impacts.  At September  30, 1998,  AT&T
assessed  approximately 52% of third party interface types and approximately 48%
were Y2K  compliant.  The Company  expects to  complete  Y2K  certification  for
approximately  75% of  external  interface  types by  year-end  1998,  with 100%
expected to be complete by mid-year 1999.

The IT infrastructure  category addresses not only the computing  platforms that
are critical to the  AT&T-developed  applications,  but also the common modules,
communications  protocols,  the internal AT&T wide-area and local-area networks,
desktop  hardware/software  and the internal voice network.  The largest part of
this effort has been focused on the inventory and assessment of the products and
components,  with much of the  deployment  scheduled  for the latter part of the
year.  As of  September  30,  1998,  AT&T was  approximately  44%  compliant  in
computing  platforms,  4% compliant in desktops,  70% compliant in voice systems
and  adjuncts,  and 46%  compliant in data  networks.  AT&T expects  substantial
completion  of IT  infrastructure  certification  by the end of 1998,  with 100%
completion during 1999.

<PAGE>                                                   AT&T Form 10-Q - Part I

                     MANAGEMENT'S DISCUSSION AND ANALYSIS OF
                  RESULTS OF OPERATIONS AND FINANCIAL CONDITION

The non-IT  infrastructure  focuses on the  energy  and  environment  management
systems  that  are  critical  to  various  computer  systems,  as  well  as  the
fundamental need to assure continuing safety,  security and operations.  The Y2K
program  encompasses  over 8,000 sites, as well as about 11,000 cell sites.  The
majority  of   the  effort  to  date  for  Y2K  compliance  within   the  non-IT
infrastructure   is  in  inventory  and  assessment.   At  September  30,  1998,
approximately 54% of all sites completed inventory, 27% completed assessment and
26% are Y2K  compliant  (or  non-impacted).  AT&T expects to complete 60% of its
sites by year-end 1998, with 100% to be Y2K-compliant by year-end 1999.

Costs
We have  expended  approximately  $300  million  since  inception in 1997 on all
phases of the Y2K project.  Total costs for the nine months ended  September 30,
1998, were approximately $189 million,  which included approximately $10 million
of capital spending for upgrading and replacing  non-compliant computer systems.
The Company  anticipates the total cost of the project to be approximately  $375
million  for the full year 1998,  which  includes  approximately  $75 million of
capitalized  fixed  assets.  More than half of these  costs  represent  internal
information  technology  resources that have been redeployed from other projects
and are expected to return to these projects upon completion of the Y2K project.
We  anticipate  total costs for 1999 to be  approximately  $225  million,  which
includes approximately $15 million of capitalized fixed assets.

Risk Assessment
We have  assessed our business  exposure that would result from a failure of our
Y2K Program,  as well as those of our suppliers,  connecting  carriers and major
customers.  Such  failures  would  result in  business  consequences  that could
include failure to be able to serve  customers,  loss of network  functionality,
inability to render accurate bills, lost revenue,  harm to the AT&T brand, legal
and  regulatory  exposure,  and failure of  management  controls.  Although  the
Company  believes that internal Y2K compliance  will be achieved by December 31,
1999,  there can be no  assurance  that the Y2K problem will not have a material
adverse  affect on the Company's  business,  financial  condition and results of
operations.

<PAGE>                                                   AT&T Form 10-Q - Part I

                     MANAGEMENT'S DISCUSSION AND ANALYSIS OF
                  RESULTS OF OPERATIONS AND FINANCIAL CONDITION


Contingency Plans
AT&T is in the process of establishing Y2K contingency plans. AT&T's contingency
plan initiatives include the following:

   Business  resumption  teams to be on call  during  the  millennium  change to
   monitor the  network,  critical  systems,  operations  centers  and  business
   processes  and -  positioned  to react  immediately  to  facilitate  repairs,
   alternate process activation and/or  re-prioritization  of work processes and
   associated resources.

   Alternate processes to be developed to support critical customer functions in
   the  event  information  systems  or  mechanized   processes  experience  Y2K
   disruptions.

   Time zone  "quiet  period" to  de-activate  non-mission-critical  systems and
   processes during the 24-hour  transition period when regional time zones pass
   through the millennium change; these  systems/processes would be re-activated
   once they are all switched over to 2000.

   Network capacity expansion to be engineered to accommodate demand peaks.

   Replacement/repair  parallel paths to be established  that provide for repair
   and  readiness of existing  systems and  components  that are  scheduled  for
   replacement by the year 2000, in the event the replacement  schedules are not
   met.

   Alternate  suppliers and implementation  plans to be in place for third-party
   products/services that fail to meet Y2K compliance commitment schedules.

   Data  retention  and  recovery  procedures  to be in place for  customer  and
   critical  business  data  to  provide  pre-millennium  backups  with  on-site
   (primary) as well as off-site (secondary) data copies.

<PAGE>                                                   AT&T Form 10-Q - Part I


                     MANAGEMENT'S DISCUSSION AND ANALYSIS OF
                  RESULTS OF OPERATIONS AND FINANCIAL CONDITION


FORWARD LOOKING STATEMENTS
Except  for  the  historical   statements  and  discussions   contained  herein,
statements  contained in this Report on Form 10-Q  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,  including statements concerning future operating  performance,  Y2K
compliance,  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
outside AT&T's  control,  that could cause actual  results to differ  materially
from such statements.

For a more complete discussion of the factors that could cause actual results to
differ  materially  from such forward  looking  statements,  see the  discussion
thereof  contained  under  the  heading  "Forward  Looking  Statements"  in  the
Company's  Form 10-K for the year ended  December 31, 1997.  Readers should also
consider the factors  discussed  under the headings  "Results of Operations" and
"Financial  Condition"  included in this Form 10-Q. 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.

<PAGE>                                                  AT&T Form 10-Q - Part II



                    NOTE TO CONSOLIDATED FINANCIAL STATEMENTS
                              (Dollars in Millions)
                                   (Unaudited)

Item 6. Exhibits and Reports on Form 8-K.

(a)           Exhibits

              Exhibit Number
                   10          Framework  Agreement,  dated  October  23,  1998,
                               among  AT&T   Corp.,  VLT   Corporation,  British
                               Telecommunications plc, BT (Netherlands) Holdings
                               B.V. and  Thistle B.V.

                   12          Computation of Ratio of Earnings to Fixed Charges

                   27          Financial Data Schedule

(b)           Reports on Form 8-K

              No  report  on  Form  8-K  was  filed  during  the  quarter  ended
              September 30, 1998.

<PAGE>                                                            AT&T Form 10-Q



                                   SIGNATURES

Pursuant  to the  requirements  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. B. Tart
                                   ------------------------------
                                   By:  M. B. Tart
                                        Vice President and Controller
                                       (Principal Accounting Officer)



Date:  November 12, 1998

<PAGE>                                                            AT&T Form 10-Q



                                  Exhibit Index


Exhibit
Number

10                             Framework  Agreement,  dated  October  23,  1998,
                               among   AT&T  Corp.,  VLT  Corporation,   British
                               Telecommunications plc, BT (Netherlands) Holdings
                               B.V. and Thistle B.V.


12                             Computation of Ratio of Earnings to Fixed Charges

27                             Financial Data Schedule


                               FRAMEWORK AGREEMENT



                                  by and among


                                   AT&T CORP.,


                                VLT CORPORATION,

                         BRITISH TELECOMMUNICATIONS PLC,

                                BT (NETHERLANDS)
                                  HOLDINGS B.V.

                                       and

                                  THISTLE B.V.


                             As of October 23, 1998

<PAGE>

     FRAMEWORK  AGREEMENT (this  "Agreement"),  dated as of October 23, 1998, by
and among AT&T Corp., a corporation  incorporated under the laws of the State of
New York,  United States of America  ("AT&T"),  VLT  Corporation,  a corporation
incorporated  under the laws of the State of Delaware,  United States of America
("VLT", and together with AT&T, the "AT&T Parties"),  British Telecommunications
plc,  a  company  organized  under the laws of  England  and  Wales  ("BT"),  BT
(Netherlands) Holdings B.V., a Besloten Vennootschap organized under the laws of
The  Netherlands  ("BT Holdings",  and together with BT, the "BT Parties"),  and
Thistle  B.V.,  a  Besloten  Vennootschap   organized  under  the  laws  of  The
Netherlands ("Thistle BV").

                                R E C I T A L S :

     A. The parties wish to  establish a joint  venture to (i) develop and offer
Global  Communications  Services (as defined below),  (ii) offer  Communications
Services (as defined  below) to specified  customers in the global  market,  and
(iii) collaborate on the other activities  specified  herein,  all as more fully
set forth herein and in the Exhibits,  Schedules and Annexes  hereto and subject
to the terms and conditions hereof.
                 
     B. The parties  agree that the joint  venture will be  implemented  through
Thistle BV and separate  Subsidiaries (as defined below) of Thistle BV organized
or  incorporated  in the United  States (as  defined  below),  England  and,  if
necessary or appropriate, elsewhere (the "Newco Subsidiaries").

<PAGE>

     NOW, THEREFORE,  in consideration of the mutual promises and agreements set
forth herein, the adequacy and sufficiency of which are hereby acknowledged, the
parties agree as follows:

                                    ARTICLE 1
                           DEFINITIONS; INTERPRETATION

     1.1  Definitions.  For the purposes of this Agreement,  the following terms
shall have the following meanings, unless the context requires otherwise:
                  
     "Accounting  Rates"  shall  mean  the  contractual  consideration  for  the
termination  of the  inbound/outbound  communications  traffic of AT&T or BT and
their Subsidiaries through the International  Settlement Process  (substantially
as such regime is in effect as of the date hereof).

     "Action" shall mean any action, suit, arbitration,  inquiry,  proceeding or
investigation  by or before any  Governmental  Body,  whether  civil,  criminal,
administrative or regulatory.

     "Affiliate" of any Person shall mean a Person that Controls,  is Controlled
by, or is under common Control with, such Person.
                  
     "Affiliate  Transaction,"  with  respect to either  parent,  shall mean any
agreement,  arrangement or  understanding  between such parent or one or more of
its  Affiliates  (other  than  Thistle  BV or one  or  more  of  its  Controlled
Affiliates),  on the one hand,  and Thistle BV or one or more of its  Controlled
Affiliates, on the other hand.
                  
     "Agreement  Officers"  shall  mean the CEO,  the CFO,  and the most  senior
executive   officer  of  each  of  the  MNC  Unit,  the  Product  Unit  and  the
International Carrier Services Unit.

     "AOPB"  shall  mean an annual  operating  plan and budget  contemplated  by
Section 6.1 for a fifteen  month  period,  comprised of each Fiscal Year and the
immediately  following  fiscal  quarter or, in the case of the first  AOPB,  the
period until the end of the fiscal quarter immediately  following the first full
Fiscal Year.
                  
     "Applicable  Law" shall mean any foreign or domestic  law,  statute,  code,
ordinance,  rule or regulation  promulgated or enacted, or any order,  judgment,
writ, stipulation, award, injunction or decree entered, by a Governmental Body.

     "Approvals"  shall  mean  any  consent,   approval,   license,   permit  or
authorization.

     "Asset Contribution Agreement (BT)" shall mean the share and asset purchase
agreement substantially in the form attached hereto as Exhibit A, comprising the
arrangements  required for the  contribution  of assets by the BT Sellers to the
Newco Group.
                 
     "Asset  Contribution  Agreement  (AT&T)"  shall  mean the  share  and asset
contribution agreement substantially in the form attached hereto as Exhibit B.

<PAGE>

     "Asset Contribution Agreements" shall mean the Asset Contribution Agreement
(BT)  and the  Asset  Contribution  Agreement  (AT&T)  and  "Asset  Contribution
Agreement" shall mean either of them.
                  
     "Assets" shall mean assets,  properties and rights (including  goodwill and
including  stock,  securities or interests of legal Persons),  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.

     "AT&T GCS Business" shall mean the Global Business  Communications Services
business  and the business of owning and  operating  Global  Network  Facilities
conducted  by the AT&T  Sellers  in which  the  AT&T  Assets  are used or by the
Contributed  AT&T  Subsidiaries,  including the business of the Contributed AT&T
Subsidiaries.

     "AT&T Seller"shall mean AT&T and each Subsidiary of AT&T that
owns any Assets to be contributed  pursuant to the Asset Contribution  Agreement
(AT&T) or is subject to any Assumed AT&T  Liabilities to be assumed  pursuant to
such Agreement.
                  
     "Bankruptcy" shall mean:

     (a) with respect to a Person other than a U.K.  Person:  (i) a court having
competent jurisdiction in the premises entering a decree or order for (A) relief
in respect of such Person in an involuntary case under any applicable Bankruptcy
Law, (B) appointment of a receiver,  liquidator,  assignee,  custodian, trustee,
sequestrator or similar official of such Person or for all or substantially  all
of the property and assets of such Person,  or (C) the winding up or liquidation
of the affairs of such Person and, in each case,  such decree or order remaining
unstayed and in effect for a period of 60 consecutive days; (ii) such Person (A)
commencing a voluntary case under any applicable  Bankruptcy  Law, or consenting
to the entry of an order for relief in an involuntary  case under any Bankruptcy
Law, (B) consenting to the  appointment  of or taking  possession by a receiver,
liquidator,  assignee,  custodian,  trustee, sequestrator or similar official of
such Person or for all or  substantially  all of the property and assets of such
Person, or (C) effecting any general assignment for the benefit of creditors; or
(iii) such Person becoming or being declared insolvent; and

     (b) with  respect  to a U.K.  Person:  (i) an  administrative  receiver  or
receiver being validly  appointed over the whole of or a substantial part of the
undertaking,  property or assets of such Person;  (ii) an  administration  order
being made in respect of such Person;  (iii) an order being made or an effective
resolution  being passed for the winding up of such Person other than as part of
a solvent  reorganization  or  amalgamation  effected by a scheme of arrangement
under  sections  425 to 427 of the U.K.  Companies  Act 1985;  (iv) such  Person
compounding  or entering into any  reorganization  or other special  arrangement
with a class of its  creditors or its  creditors  generally;  or (v) such Person
being unable to pay its debts within the meaning of section  123(1)(e) or 123(2)
of the U.K.  Insolvency  Act 1986 but so that,  in each  case,  the words "it is
proved to the satisfaction of the Court" are deleted.

<PAGE>

     "Bankruptcy  Law" shall mean (a) with respect to a U.S.  Person,  Title 11,
United States  Bankruptcy  Code of 1978, as amended,  (b) with respect to a U.K.
Person,  the U.K.  Insolvency  Act 1986 and any statutory  instrument,  rules or
regulations made thereunder,  and (c) with respect to Thistle BV or BT Holdings,
The Netherlands Faillissementswet,  as amended, and, with respect to each Person
referred to in the preceding clauses (a), (b) and (c), and with respect to other
Persons,  any  similar  federal,  state or other law or  regulation  relating to
bankruptcy, insolvency, receivership, winding-up, liquidation, reorganization or
relief of debtors or any amendment to, successor to or change in any such law.
                  
     "Best Efforts" shall mean that the obligated  Person shall make all efforts
to accomplish the  applicable  objective.  Such  obligation,  however,  does not
require the obligated  Person to incur any  liabilities or relinquish any assets
or rights if the aggregate  burden thereof would either have a Material  Adverse
Effect on such Person and its Subsidiaries taken as a whole or would represent a
cost,  loss or other  liability  in an amount  exceeding  25% of the fair market
value of the Newco Group on a going concern  basis.  The fact that the objective
is not actually  accomplished is no indication that the obligated Person did not
in fact utilize its Best Efforts in attempting to accomplish the objective.
                  
     "Broadcast Services" shall mean the non-interactive (except for purposes of
control)  transmission  and  related  support  activities  of  signals  and data
comprising:
                  
     (b) images,  television (including business  television),  radio and cinema
programming  and  other  audio-visual   productions  (including   entertainment,
information, news and sports) for point to multipoint simultaneous distribution;
or
                  
     (c) content which is intended to be incorporated ultimately into television
(including  business  television),   radio  and  cinema  programming  and  other
audio-visual productions (including entertainment, information, news and sports)
(irrespective of whether distribution is point to multipoint or point to point).
                  
     "BT GCS Business"  shall mean the Global Business  Communications  Services
business  and the business of owning and  operating  Global  Network  Facilities
conducted  by the  BT  Sellers  in  which  the  BT  Assets  are  used  or by the
Contributed  BT  Subsidiaries,  including  the business of Concert and the other
Contributed BT Subsidiaries.
                  
     "BT Seller" shall mean BT and each Subsidiary of BT that owns any Assets to
be contributed  pursuant to the Asset Contribution  Agreement (BT) or is subject
to any Assumed BT Liabilities to be assumed pursuant to such an Agreement.
                  
     "Business  Combination"  shall have the meaning defined in paragraph (c) of
the definition of "Change of Control."
                  
     "Business Day" shall mean any day other than a day (a) on which  commercial
banks in the City of New York,  United States or Amsterdam,  The Netherlands are
required or authorized  by Applicable  Law to be closed or (b) which is a public
holiday in London, England.
                  
     "Business  Units" shall mean the  International  Carrier Services Unit, the
MNC Unit,  the Network and Systems  Unit,  the Product  Unit and the  Technology
Unit, and a "Business Unit" shall mean any of them.                 

<PAGE>

     "Carrier Services" shall mean the provision of carriage, including hubbing,
routing,  transit,  reorigination  and least  cost  routing  on  Global  Network
Facilities  primarily  between  two or more  countries  to  other  International
Carriers.
                  
     "CEO" shall mean the chief executive officer of Thistle BV.
                  
     "CFO" shall mean the chief financial officer of Thistle BV.
                  
     "Change of Control" with respect to any Person shall mean the occurrence of
any of the following:
                  
     (b) The  acquisition  by any  Person  or group  of  Persons  of  beneficial
ownership  (within the meaning of Rule 13d-3 promulgated under the Exchange Act)
of 45% or more of either (i) the then outstanding  shares of common stock of the
Person  or, in the case of BT,  voting  rights  carried  by  issued  shares at a
general meeting of the shareholders (the "Outstanding  Company Common Stock") or
(ii) the combined voting power of the then outstanding  voting securities of the
Person  entitled to vote  generally  in the election of directors of such Person
(the  "Outstanding  Company Voting  Securities");  provided,  however,  that for
purposes of this  paragraph  (a), any  acquisition  by any Person  pursuant to a
transaction  that  complies with clauses (i), (ii) and (iii) of paragraph (c) of
this definition shall not be a Change of Control; or
                  
     (c) Individuals who, as of the date of this Agreement, constitute the board
of directors or other similar  governing body of such Person or, with respect to
any Person  organized  or formed  after the date  hereof,  the  individuals  who
constitute the members of such body at its first meeting (the "Incumbent Board")
cease for any reason to  constitute  at least a  majority  of the board or other
similar governing body of such Person;  provided,  however,  that any individual
becoming a director,  or having  similar  management  supervisory  functions  (a
"director")  subsequent  to the date of this  Agreement  or date of such meeting
whose election,  or nomination for election by such Person's  shareholders,  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, but excluding,  for this purpose, 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 a
Person other than the Incumbent Board of such Person; or
                  
     (d)   Consummation   of   a   reorganization,   amalgamation,   merger   or
consolidation,  scheme  of  arrangement  under  sections  425 to 427 of the U.K.
Companies Act 1985, sale or other disposition of all or substantially all of the
assets  or  shares  of such  Person  or any  similar  transaction  (a  "Business
Combination"),  in each case, unless,  following such Business Combination,  (i)
all  or  substantially  all of the  Persons  who  were  the  beneficial  owners,
respectively,  of the Outstanding  Company Common Stock and Outstanding  Company
Voting  Securities of the applicable  Person  immediately prior to such Business
Combination   beneficially  own,  directly  or  indirectly,   55%  or  more  of,
respectively, the then Outstanding Company Common Stock and the then Outstanding
Company Voting Securities, as the case may be, of the Person resulting from such
Business  Combination  (including a Person which as a result of such transaction

<PAGE>

owns  the  applicable  Person  or all  or  substantially  all of the  applicable
Person's  assets  either  directly  or through one or more  Subsidiaries)  (such
resulting   Person,  a  "Resulting   Corporation")  in  substantially  the  same
proportions as their ownership,  immediately prior to such Business  Combination
of  the  Outstanding   Company  Common  Stock  and  Outstanding  Company  Voting
Securities of the applicable Person, as the case may be, (ii) no Person or group
of Persons (excluding any Resulting Corporation)  beneficially owns, directly or
indirectly,  45% or more of,  respectively,  the then Outstanding Company Common
Stock of the  Resulting  Corporation  or the  then  Outstanding  Company  Voting
Securities  of the Resulting  Corporation,  and (iii) at least a majority of the
members  of the  board of  directors  or  other  similar  governing  body of the
Resulting  Corporation were members of the Incumbent Board or were approved by a
majority  of the  Incumbent  Board at the time of the  execution  of the initial
agreement,  or of the  action  of the  board or other  similar  governing  body,
providing for such Business Combination; or
                  
     (e) Approval by the  shareholders of such Person of a complete  liquidation
or dissolution of such Person, except with respect to a U.K. Person, pursuant to
a scheme of arrangement  that does not otherwise  constitute a Change of Control
pursuant to  paragraph  (a),  (b),  (c) or (e) of this  definition  or an actual
complete liquidation or dissolution of such U.K. Person; or

     (f) Another  Person or group of Persons shall  otherwise  obtain  effective
Control of such Person.  "Charter  Documents"  shall mean the Thistle BV Charter
Documents,  the DirectorCo Charter Documents, the Newco Services Company Charter
Documents and the Newco Subsidiary Charter Documents.

     "Check the Box Entity" shall mean any Person designated as such on Schedule
2.2 and,  with respect to Persons not so  designated,  any such Person that AT&T
elects to be treated  as a  partnership  for U.S.  federal  income tax  purposes
pursuant to the procedure set forth in Annex 3.

     "Class" shall mean the class of Class A Representatives, the class of Class
B Representatives or the class of the Class C Representative.

     "Class A  Representative"  shall  mean a  member  of the  DirectorCo  Board
appointed by AT&T or the Affiliate of AT&T that is a member of DirectorCo.

     "Class B  Representative"  shall  mean a  member  of the  DirectorCo  Board
appointed by BT or the Affiliate of BT that is a member of DirectorCo.

     "Class C Representative"  shall mean the then CEO, who shall be a member of
the DirectorCo Board.

     "Code"  shall mean the United  States  Internal  Revenue  Code of 1986,  as
amended, and any successor legislation.

     "Communications   Services"  shall  mean  any  services  and  applications,
including  enhanced services and applications,  that involve the transmission of
voice, data, sound, music, still and moving image or video and other elements by
fixed media (such as wire, cable or fiber),  or radio or other wave signal,  and
any similar or substitute  service  available or offered from time to time,  and
the business of developing, designing or offering content-based applications.

<PAGE>

     "Concert" shall mean Concert  Communications  Company, an unlimited company
incorporated in England and Wales.

     "Consolidated Group" shall mean an affiliated group of corporations (within
the meaning of section 1504(a) of the Code) filing a consolidated  U.S.  federal
Income Tax Return, and a group of corporations  filing a consolidated,  combined
or unitary Tax Return for state, local or foreign Tax purposes.

     "Contributed  AT&T  Contracts"  shall mean the contracts and  agreements to
which any of the AT&T Sellers or Contributed  AT&T  Subsidiaries  is a party set
forth or described in Schedule 15.1A.

     "Contributed  AT&T  Subsidiaries"  shall mean the  Subsidiaries of AT&T set
forth in Schedule 15.1A.

     "Contributed BT Contracts" shall mean the contracts and agreements to which
any of the BT Sellers or  Contributed  BT  Subsidiaries  is a party set forth or
described in Schedule 15.1B.

     "Contributed BT  Subsidiaries"  shall mean the Subsidiaries of BT set forth
in Schedule  15.1B and shall  include BT  IntermediateCo,  Concert  Holdings and
their Subsidiaries.

     "Contribution" shall mean the contribution and transfer by the AT&T Sellers
or the BT  Sellers,  respectively,  to the Newco Group of the AT&T Assets and BT
Assets, respectively,  and the assumption by the Newco Group of the Assumed AT&T
Liabilities and Assumed BT Liabilities  from the AT&T Sellers or the BT Sellers,
respectively,  as  contemplated  by this  Agreement  and the Asset  Contribution
Agreements.

     "Control" shall mean the direct or indirect power  affirmatively  to direct
the management and policies of a Person, whether through the ownership of voting
securities,   by   agreement  or   otherwise.   "Controls,"   "Controlled"   and
"Controlling" shall have corresponding meanings.

     "Covered  Investor"  with  respect to any Person shall mean any "person" or
"group"  (within  the  meaning of Section  13(d)(3)  of the  Exchange  Act) that
either,  directly or indirectly (a) has effective  Control of such Person or (b)
has beneficial ownership of 45% or more of either the Outstanding Company Common
Stock or Outstanding Company Voting Securities of such Person.

     "CTO" shall mean the chief technology officer of Thistle BV.

     "Current  Subsidiaries"  shall mean the Subsidiaries of Concert Holdings as
of the date hereof.

     "Default"  shall mean an  occurrence  or  circumstance  that  constitutes a
violation, breach or default, which gives another Person or Persons the right to
accelerate the  defaulting  Person's  performance  of, or the right to cancel or
terminate,  or which results in the loss of any benefit under or the creation or
imposition of any Lien on a Person's Assets under, an  organizational  document,
or any contract, order or other commitment or obligation,  whether following the
expiration of any applicable  grace period or the giving of any required  notice
and  where  there  has not been any cure or  waiver  of,  or  consent  to,  such
violation, breach or default.

<PAGE>

     "DirectorCo"  shall mean a limited  liability  company to be established by
AT&T or one of its Affiliates and BT or one of its Affiliates  under the laws of
the State of Delaware.

     "DirectorCo Board" shall mean the management board of DirectorCo.

     "DirectorCo  Charter Documents" shall mean the certificate of formation and
the operating agreement of DirectorCo  substantially in the form attached hereto
as Exhibit E-1 and Exhibit E-2, respectively.

     "Disregarded Entity" shall mean a Person designated as such on Schedule 2.2
and, with respect to Persons not so  designated,  any such Person that elects to
be treated as a disregarded entity for U.S. federal income tax purposes pursuant
to the procedure set forth in Annex 3.

     "Distribution  Agreement  (Newco  Products)"  shall  mean the  distribution
agreements   between  Thistle  BV  and  AT&T  and  between  Thistle  BV  and  BT
substantially  in the form  attached  hereto as  Exhibit  F-1 and  Exhibit  F-2,
respectively.

     "Distribution  Agreement  (Parent  Products)"  shall mean the  Distribution
Agreement (BT Services) and Distribution Agreement (AT&T Services) substantially
in the form attached hereto as Exhibit G-1 and Exhibit G-2, respectively.

     "Distribution  Agreements"  shall mean the Distribution  Agreements  (Newco
Products) and the Distribution  Agreements (Parent Products),  and "Distribution
Agreement" shall mean any of them.

     "Distributor" shall mean any Person that engages in the marketing,  sale or
other  distribution  of  Global  Business  Communications  Services  to end user
customers and resellers.

     "Dollars" and the sign "$" shall mean dollars in the lawful currency of the
United States.

     "Domestic  Network  Facilities"  shall  mean all  facilities  that  support
bandwidth,  transmission,  signaling,  routing,  network  service  intelligence,
network  control   intelligence,   switching  and  Operational  Systems  Support
(including any related software  support) in connection with the transmission of
voice,  data, sound,  music, still and moving image, or video and other elements
by fixed media (such as wire,  cable or fiber),  or radio or other wave  signal,
other than Global Network Facilities.

     "EBITDA"  shall mean,  with  respect to any Person for any period,  the net
income after Taxes of such Person for such period,  plus, to the extent deducted
from revenues in calculating net income after Taxes for such period,  the sum of
(i) all interest expense,  including the interest  component or equivalent under
capital  leases,  (ii) all expense and  provision  for any current and  deferred
federal,   state  or  other  domestic  or  foreign   Income  Taxes,   and  (iii)
depreciation,  amortization and other similar non-cash charges,  in each case as
determined in accordance  with the GAAP of the applicable  jurisdiction  of such
Person applied on a consistent basis.

<PAGE>

     "Environmental  Law"  shall  mean any  federal,  state,  local  or  foreign
statute,  ordinance,  rule,  regulation,  code,  common law (including  tort and
environmental   nuisance  law),  legal  doctrine,   order,   judgment,   decree,
injunction,  requirement or agreement with any  Governmental  Body,  relating to
pollution,  human health or safety, or the environment  (including  ambient air,
surface water, groundwater,  land surface or subsurface strata) or to emissions,
discharges,  releases or  threatened  releases of any  hazardous  substances  or
otherwise relating to the manufacture, processing, distribution, use, treatment,
storage, disposal, transport or handling of any such hazardous substances.

     "Environmental Liabilities" shall mean Liabilities relating to, arising out
of or resulting from any Environmental  Law (including all removal,  remediation
or cleanup costs,  investigatory  costs,  governmental  response costs,  natural
resources  damages,  property  damages,  personal  injury  damages,   settlement
amounts,   costs  of  compliance   with  any   settlement,   judgment  or  other
determination of Liability and indemnity,  contribution or similar  obligations)
and all costs and expenses (including reasonable fees, charges and disbursements
of attorneys,  consultants  and experts),  interest,  fines,  penalties or other
monetary  sanctions in connection  therewith,  whether arising from  negligence,
strict liability or any other theory of recovery at law or in equity.

     "Environmental Permit" shall mean any Permit required or issued pursuant to
any Environmental Law.

     "European Region" shall mean all countries listed on Schedule 1.1A hereto.

     "Exchange  Act" shall mean the United  States  Securities  Exchange  Act of
1934, as amended.

     "Excluded AT&T Liabilities" shall mean:

     (b)  Environmental  Liabilities  relating to any or all of the AT&T Assets,
the  Assets  of the  Contributed  AT&T  Subsidiaries  and the AT&T GCS  Business
incurred, accrued or resulting from any fact, event or circumstance occurring or
existing prior to the Closing Date;

     (c) Any Liabilities of the AT&T Sellers relating to Taxes; and

     (d) Other Liabilities that arise or result from or relate to the management
and operations of the AT&T GCS Business,  to the extent related to periods prior
to the Closing.

     "Excluded BT Liabilities" shall mean:

     (b) Environmental  Liabilities relating to any or all of the BT Assets, the
Assets of the  Contributed  BT  Subsidiaries  and the BT GCS Business  incurred,
accrued or resulting from any fact, event or circumstance  occurring or existing
prior to the Closing Date;

     (c) Any Liabilities of the BT Sellers relating to Taxes; and

<PAGE>

     (d) Other Liabilities that arise or result from or relate to the management
and operations of the BT GCS Business, to the extent related to periods prior to
the  Closing  (other  than,  in the case of  Concert,  (i) the  Assumed  Concert
Purchase Debt,  less any amount  cancelled in accordance  with the terms hereof,
(ii) the  Indebtedness  of Concert as  contemplated by Section 15.7(a) and (iii)
Liabilities  of Concert  that are  reflected in the Concert  Financials  or that
arise or have arisen in the  ordinary  course of business  from April 1, 1998 to
the Closing  Date,  but  excluding  any  material  Liabilities  associated  with
material Actions that arise or occur prior to the Closing Date).

     "FCC"  shall  mean the  Federal  Communications  Commission  of the  United
States.

     "FCC Order" shall mean either:

     (a) A  written  order or  other  determination  from  the  staff of the FCC
(either in the first  instance or upon review,  reconsideration  or other action
subsequent to an order or other determination of the staff) either approving the
consummation  of the  transactions  contemplated by this Agreement and the other
Transaction  Agreements or stating that no such approval is required (or, in the
case of such review, reconsideration or other subsequent action, a written order
or other  determination to the effect set forth above or affirming or upholding,
or having the effect of affirming or upholding, whether by dismissing or denying
a petition for  reconsideration  or  terminating  the  consideration  thereof or
otherwise,  a previous  order or  determination  to the effect set forth in this
paragraph  (a)),  which  order or  determination  shall no longer be  subject to
further administrative review by the FCC; or

     (b) A written order or other  determination  from the FCC itself (either in
the first  instance  or upon  review,  a  reconsideration  pursuant  to  section
1.106(a)(i) of the FCC's rules, or other action  subsequent to an order or other
determination  of the staff of the FCC) either approving the consummation of the
transactions contemplated by this Agreement and the other Transaction Agreements
or stating  that no such  approval is required  (or, in the case of such review,
reconsideration  or other action  subsequent to an order or determination of the
staff of the FCC, a written order or other  determination from the FCC itself to
the  effect  set forth  above or  affirming,  upholding  or having the effect of
affirming  or  upholding,  whether  by  dismissing  or  denying a  petition  for
reconsideration  or  application  for review or  terminating  the  consideration
thereof or otherwise, an order or other determination of the staff of the FCC to
the effect set forth in paragraph (a)).

     For purposes of this  definition,  an order or other  determination  of the
staff shall be deemed no longer subject to further  administrative review by the
FCC:

     (x) If no petition for reconsideration or application for review by the FCC
of the order or  determination  of the staff has been filed within 30 days after
the date of public notice of the order or  determination,  as such 30-day period
is  computed  and as such  date  is  defined  in  sections  1.104  and  1.4,  as
applicable,  of the FCC's  rules,  and the FCC has not  initiated  review of the
order or  determination  of the staff on its own motion within 40 days after the
date of public  notice of the order or  determination,  as such 40-day period is
computed  and as such date is  defined  in  sections  1.117 and 1.4 of the FCC's
rules, or                           

<PAGE>

     (y) If any such petition for  reconsideration or application for review has
been filed, or, if the FCC has initiated review of the order or determination of
the staff on its own motion,  the FCC itself has issued a written order or other
determination  or taken other  action to the effect set forth in  paragraph  (b)
above.

     "Five Year Business Plan" shall mean a five year business plan contemplated
by Section 6.1.

     "GAAP" shall mean generally accepted accounting principles.

     "global,"  when used with respect to  Communications  Services,  shall mean
Communications Services between or among two or more countries.
                  
     "Global Business Communications  Services" shall mean Global Communications
Services  provided or targeted to  businesses  and to their  employees  in their
capacity as employees.

     "Global  Communications  Services"  shall  mean  current  or future  global
end-to-end  managed  and all  other  global  Communications  Services  of a type
intended for use by end user customers and resellers,  but excluding Satellite &
Radio Services, basic switched voice and basic telex.

     "Global  Network   Facilities"  shall  mean  all  facilities  that  support
bandwidth,  transmission,  signaling,  routing,  network  service  intelligence,
network  control   intelligence,   switching  and  Operational  Systems  Support
(including any related software  support) in connection with the transmission of
voice,  data, sound,  music, still and moving image, or video and other elements
by fixed media (such as wire,  cable or fiber),  or radio or other wave  signal,
exclusively  or  predominantly  between or among two or more countries (it being
understood  that  facilities  that are  predominantly  designed to support  such
transmission  between  or among two or more  countries  may also  support,  as a
non-predominant use, transmission within one or more of such countries).  Global
Network  Facilities  shall  not  include  backhaul  facilities,   except  AT&T's
U.S.-based international SDH backhaul facilities.  Except as expressly agreed by
the parties,  Global Network  Facilities shall not include any system or systems
that provide Communications Services exclusively within a given country (in each
case, whether or not a Home Country).

     "Governmental  Approval" shall mean any consent,  approval,  authorization,
waiver, grant, concession, license, permit, exemption or order of, registration,
certificate,  declaration  or filing with,  or report or written  notice to, any
Governmental  Body and any  expiration  or  termination  of any  waiting  period
requirement (including pursuant to the HSR Act) of any Governmental Body.

     "Governmental Body" shall mean any court or any national,  federal,  state,
municipal,  or  local  government  or any  political  subdivision,  governmental
department,  commission,  board, bureau, agency,  official or instrumentality of
any thereof, domestic or foreign, and shall include the European Commission.

     "group" or "Group"  shall mean two or more  persons  within the  meaning of
Section 13(d)(3) of the Exchange Act.

<PAGE>

     "Hazardous  Substances" shall mean any pollutants,  contaminants,  toxic or
hazardous or extremely hazardous substances,  materials,  wastes,  constituents,
compounds,  chemicals  (including  petroleum  or any  by-products  or  fractions
thereof,  any  form of  natural  gas,  lead,  asbestos  and  asbestos-containing
materials,  polychlorinated  biphenyls  ("PCBs") and  PCB-containing  equipment,
radon and other radioactive elements, ionizing radiation,  electromagnetic field
radiation and other non-ionizing radiation, infectious, carcinogenic, mutagenic,
or etiologic agents, pesticides,  defoliants, explosives, flammables, corrosives
and urea  formaldehyde  foam  insulation)  that are regulated by any  applicable
Environmental Laws.

     "Home  Country"  when used with respect to BT shall mean the U.K.,  and its
Crown dependencies, trusts, territories and possessions listed on Schedule 1.1B,
and when used with respect to AT&T shall mean the United States, and its trusts,
territories and possessions listed on Schedule 1.1C.

     "Home  Territory"  when used with  respect  to BT shall  mean the  European
Region and BT's Home Country,  and when used with respect to AT&T shall mean the
NAFTA Region and AT&T's Home Country.

     "HSR  Act"  shall  mean  the  United  States  Hart-Scott-Rodino   Antitrust
Improvements Act of 1976, as amended.

     "Income Tax" shall mean any federal,  state, local or foreign Tax (a) based
upon,  measured  by,  or  calculated  with  respect  to net  income  or  profits
(including capital gains Taxes,  alternative minimum Taxes and Taxes on items of
Tax preference),  or (b) based upon,  measured by, or calculated with respect to
multiple bases  (including  corporate  franchise  Taxes),  if one or more of the
principal bases on which such Tax may be based,  measured by, or calculated with
respect to is described in clause (a).
              
     "Indebtedness"  shall mean, as applied to any Person,  without  duplication
(a) all indebtedness for borrowed money,  whether obtained from third parties or
Affiliates of such Person,  (b) that portion of obligations  with respect to any
lease of any property by that Person as a lessee that,  in  conformity  with the
GAAP  applicable  in the  jurisdiction  of such Person,  is  accounted  for as a
capital  lease  on the  balance  sheet  of such  Person  and  that  is  properly
classified as a liability on a balance sheet in conformity  with such GAAP,  (c)
all guarantees of indebtedness of third Persons,  (d) all  indebtedness of third
Persons secured by Liens on any of the Assets of such Person, (e) all letters of
credit or similar instruments, and (f) the deferred and unpaid purchase price of
property, other than trade payables arising in the ordinary course of business.

     "Influence  Test"  shall be deemed to be met with  respect to a Person (the
"Investor")  investing  in a  party  (the  "Investee"),  other  than  by  way of
commercial or other bona fide lending arrangements,  if any one of the following
tests is satisfied:

     (b) The Investor has, as a practical matter, effective negative veto rights
in fact on major  business  decisions  taken by the board of  directors or other
similar  governing  body or  management  of the  Investee or on major  strategic
transactions  of the  Investee,  whether by  contract or by  agreement  with the
Investee or any of its  Affiliates  (but excluding any such rights that arise by
statute); or

<PAGE>

     (c) The Investor has achieved material influence on the policies, direction
or operation of the Investee; or

     (d) The  Investor  has the  right or power to  nominate,  or has  designees
representing,  more than 25% of the members of the board of  directors  or other
similar governing body of the Investee;  provided that if 25% of such members or
other similar governing body is not a whole number, 25% of such members shall be
deemed to be the next higher whole number; or
                  
     (e) The Investor (together with its Affiliates and any Persons with whom it
is  acting  in  concert)  has  acquired  in  one  transaction  or  a  series  of
transactions  beneficial  ownership of at least 20% of the  Outstanding  Company
Common Stock or the Outstanding  Company Voting  Securities of the Investee from
the Investee;  provided,  however, that if the relevant securities are issued by
the Investee in exchange  for assets  (other than cash) or a business of a third
party,  and the Influence  Test shall not  otherwise be met, the Influence  Test
shall be deemed to have been met with a limitation (a "Limitation") for purposes
of Article 13; or

     (f) The Investor has the right, by contract,  to veto significant decisions
affecting the Investee.

     "Intellectual Property Rights" or "IPR" shall have the meaning set forth in
the IPR Agreement.

     "International  Carrier"  shall  mean a Person  which  (a) is  licensed  or
authorized,  or is otherwise  permitted to provide, or operates where no license
or authorization is required, crossborder Communications Services to the public,
or (b) owns or  operates,  or is  licensed  to own or  operate,  the  underlying
facilities used to provide crossborder Communications Services to the public.

     "International   Carrier   Services"   shall  mean  Carrier   Services  and
International Traffic Termination Services.

     "International   Carrier  Services  Unit"  shall  mean  the  Business  Unit
contemplated by Section 2.1(b).

     "International  Settlement Process" shall mean the system of accounting and
settlement rates for the exchange of international traffic of a type referred to
in Section 64.1001 of the  regulations of the FCC and any subsequent  regime for
arranging and managing inbound/outbound traffic termination terms and conditions
with an International Carrier.

     "International  Traffic  Service  Agreement  (AT&T)"  shall  mean the Newco
International  Traffic  Service  Agreement  substantially  in the form  attached
hereto as Exhibit D-2.

     "International  Traffic  Service  Agreement  (BT)"  shall  mean  the  Newco
International  Traffic  Service  Agreement  substantially  in the form  attached
hereto as Exhibit D-1.

     "International  Traffic Service  Agreements"  shall mean the  International
Traffic Service Agreement (AT&T) and the International Traffic Service Agreement
(BT), and "International Traffic Service Agreement" shall mean either of them.

<PAGE>

     "International  Traffic  Termination  Services" shall mean the arrangement,
management  and  delivery of  inbound/outbound  traffic  termination  of all the
communications  traffic,  including voice and Internet Protocol traffic, of AT&T
or BT and their  Subsidiaries,  including through the  International  Settlement
Process and least cost routing  alternatives,  but excluding all Global Business
Communications Services.

     "Internet Protocol" or "IP" shall mean internet protocol.

     "IPR  Agreement"  shall mean the IPR  Agreement  substantially  in the form
attached hereto as Exhibit H.

     "Level 1  Customers"  shall  mean  MNCs that are  limited  buyers of Global
Communications  Services that primarily buy Global Communications  Services on a
local basis, and which are not Qualifying MNC Customers.

     "Level 2 Customers"  shall mean MNCs that are significant  buyers of Global
Communications  Services but which do not buy Communications Services in a fully
integrated global manner, and which are not Qualifying MNC Customers.

     "Liability"  or  "Liabilities"  shall  mean  any  and all  losses,  claims,
charges,  debts,  actions,  causes  of  action,  suits,  damages,   obligations,
payments,  costs and expenses,  indemnities 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,  contemplated or completed Action
(including the costs and expenses of demands,  awards,  assessments,  judgments,
fines,  penalties,  settlements and compromises  relating thereto,  court costs,
fees,  charges  and  disbursements  of  attorneys,  and any and  all  costs  and
expenses,   whatsoever  reasonably  incurred  in  investigating,   preparing  or
defending against any such Actions or threatened or contemplated Actions), order
or consent  decree of any  Governmental  Body or any award of any  arbitrator or
mediator  of any kind,  and those  arising  under any  contract,  commitment  or
undertaking, 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.

     "Liberty Media Group" shall mean Liberty Media/Ventures Corporation, any of
its direct or indirect  current or future  Subsidiaries,  any Person in which it
has or acquires any direct or indirect  equity  investment  and any other Person
directly or indirectly Controlled by any of the foregoing.

     "LIBOR" shall mean the arithmetic  average rounded up to the nearest 1/16th
of 1% of the London  interbank  offered rates of major banks for Dollar deposits
for a  three-month  period  that are  displayed  on page  "LIBO" on the  Reuters
Monitor Money Rate Service or such other page as may replace the "LIBO" page and
displays London interbank  offered rates for Dollar  deposits,  in each case, as
relevant, determined on a particular date or from time to time.

     "Lien" shall mean any lien, pledge,  mortgage,  security  interest,  claim,
lease,   charge,   option,   right  of  first  refusal,   easement,   servitude,
right-of-way,  encroachment or other encumbrance  affecting title, limited right
(beperkt  recht),  transfer,  voting  or other  similar  restriction  under  any
agreement or any similar lien or encumbrance.

     "Local Purchase Agreements" shall have the meaning set forth in Section 1.2
of the Asset Contribution Agreement (AT&T).

     "Major Competitor" of AT&T or BT shall mean (a) when used with reference to
AT&T, any Person that, together with all of its Affiliates, has revenues derived
in AT&T's Home  Territory  from the  provision of  Communications  Services that
constitute  at least 10% of the  aggregate  revenues  of AT&T  derived  from the
provision of Communications  Services in such Home Territory;  and (b) when used
with reference to BT, any Person that, together with all of its Affiliates,  has
revenues  derived in BT's Home  Territory  from the provision of  Communications
Services that  constitute  at least 10% of the aggregate  revenues of BT derived
from the provision of  Communications  Services in such Home Territory,  in each
case determined by reference to the most recently  completed full fiscal year of
any Person with respect to which the measurement is being made.

     "Managed  Network  Services"  shall  mean the  provision  of  service  to a
customer  consisting of the management of the logical and physical elements of a
customer's end-to-end  communications  network,  including network transport and
equipment,  and  incremental,  directly related network systems and applications
planning, design, integration and migration, and customer support functions.

     "Managed Network Services  Facilities"  shall mean all facilities,  systems
and software that are used  predominantly  in the  provision of Managed  Network
Services.

     "Management Board" shall mean the management board of Thistle BV.

     "Material Adverse Effect" shall mean, with respect to a Person, any change,
circumstance  or effect that,  individually  or in the aggregate  with all other
changes,  circumstances and effects, is or is reasonably likely to be materially
adverse to the business,  operations,  assets, liabilities (including contingent
liabilities),  financial  condition or results of  operations of such Person and
its  Subsidiaries  taken as a whole.  For the avoidance of doubt, any regulatory
proceedings or class of proceedings  currently in process shall not be deemed to
have or  contribute  to a Material  Adverse  Effect as to the scope of proposals
currently contemplated by such proceedings or class of proceedings.

     "MCI" shall mean MCI  Communications  Corporation,  a corporation  formerly
incorporated under the laws of the State of Delaware,  and a constituent company
which was merged with and into MCI-WorldCom.

<PAGE>

     "MCI-WorldCom"  shall mean MCI WorldCom,  Inc., a corporation  incorporated
under the laws of the State of Delaware. "MNC Newco Subsidiaries" shall mean the
Newco  Subsidiaries  and any other members of the Newco Group to the extent that
any of the foregoing engages in the business and activities of the MNC Unit.

     "MNCs"  shall mean any Person that (a) has annual  revenues in excess of $1
billion,  (b) has annual  international  revenues in excess of $200 million, (c)
has operations on two or more continents and in four or more  countries,  (d) is
not  a  Governmental  Body,  (e)  is  not  a  carrier  or  a  Person  purchasing
Communications  Services  primarily for the purpose of resale to others, and (f)
buys Global Communications Services.

     "MNC Unit" shall mean the Business Unit contemplated by Section 2.1(c).

     "Multimedia  Content"  shall mean only the  creation  and  organization  of
content relating to any combination of text,  voice,  graphic,  audio,  video or
similar  communication  media  distributed  by means  of,  or  capable  of being
distributed by means of, Communication  Services. For the avoidance of doubt, it
does not include the distribution, including transmission and ancillary caching,
or management  of the  distribution  of such material by means of  Communication
Services.

     "NAFTA Region" shall mean Mexico and Canada.

     "Netco"  or  "Netcos"  shall  mean the  Newco  Subsidiaries  identified  on
Schedule 2.2, and "Netco 1" shall mean the Newco  Subsidiary  identified as such
on Schedule 2.2.

     "Network and Systems  Unit" shall mean the business  unit  contemplated  by
Section 2.1(d).

     "Newco Group" shall mean Thistle BV, the Newco  Subsidiaries  and the Newco
Services Company.

     "Newco Services  Company" shall mean the Delaware limited liability company
to be  established  and owned equally by AT&T or one of its Affiliates and BT or
one of its  Affiliates,  which will, for  compensation on an arm's length basis,
manage  certain  of the  operations  of the  Newco  Group in or from the  United
States.

     "Newco Services  Company Charter  Documents"  shall mean the certificate of
formation and the limited liability company agreement  substantially in the form
attached hereto as Exhibit J-1 and Exhibit J-2, respectively.

     "Newco Subsidiary  Charter Documents" shall mean constitutive or equivalent
documents of material Newco  Subsidiaries,  including  certificates of formation
and  limited  liability  company  agreements  in the  case of a  material  Newco
Subsidiary that is a limited  liability  company organized under the laws of the
State of Delaware,  and  memorandum and articles of association in the case of a
material Newco Subsidiary that is a U.K. Person.

     "Non-Concert Product Contributions" shall mean (a) with respect to the AT&T
GCS Business,  wholesale  revenue in respect of GSDN,  International  0800, VNS,
International  Private Line, Frame Relay,  ATM, Managed Network Services and IP,
and (b) with  respect to the BT GCS  Business,  wholesale  revenue in respect of
International  0800,  International  Featurenet,  International  Private  Leased
Circuits, Correspondent ATM, IPSS (X.75) and VSAT.

<PAGE>

     "Non-Exclusive  Content  Services"  shall mean the business of  developing,
designing or offering  content-based  applications,  excluding  Special  Content
Services.

     "Operational  Support  Systems" shall mean the computer  systems on which a
Person  depends  for  providing  management  support  of all of its  operations,
including service delivery and provision,  network usage and control, billing of
customers,  network  planning,  fraud  identification,   resource  planning  and
facility management.

     "Outsourcing   Professional   Services"   shall  mean  the   provision   of
professional    services   relating   to   network   architecture    validation,
implementation, operations and life cycle management, including business process
consulting, migration planning and implementation, but excluding Managed Network
Services,  and may include the ownership and  acquisition  of assets from and on
behalf  of  customers  related  to the  provision  of  Outsourcing  Professional
Services.

     "Outsourcing  Services" shall mean  Outsourcing  Professional  Services and
Managed Network Services.

     "parent" shall mean either AT&T or BT and "parents" shall mean AT&T and BT,
and in either  case any  successor  corporations  thereto  and,  pursuant to any
future  reorganizations,  any holding companies owning,  directly or indirectly,
substantially all of the issued and outstanding Voting Securities thereof.

     "party"  shall mean any of AT&T,  VLT,  BT, BT  Holdings or Thistle BV, and
"parties" shall mean AT&T, VLT, BT, BT Holdings and Thistle BV.

     "Performance  Test Shortfall"  shall have the meaning set forth in Schedule
1.1D.

     "Performance  Test  Shortfall  for the ICS Unit" shall have the meaning set
forth in Schedule 1.1E.

     "Permits"  shall  mean  any  permit,  license,   registration,   franchise,
authorization or approval issued by any Governmental Body.

     "Permitted Liens" shall mean statutory liens for Taxes and other charges or
costs  not yet due and  payable  and Liens  imposed  in the  ordinary  course of
business,  in each case which do not materially  adversely  affect the full use,
occupancy, operation or enjoyment of the Asset subject thereto.

     "Person"  shall  mean  any  individual,  general  or  limited  partnership,
association,  joint stock company,  limited  liability  company,  joint venture,
corporation,  trust,  unincorporated  organization,  Governmental  Body or other
legal person.

     "Pre-Closing Taxes" shall mean (a) any and all Taxes for or attributable to
any taxable  period ending (or deemed to end) on or prior to the Closing Date (a
"Pre-Closing Period"), limited, with respect to Concert Holdings and its Current
Subsidiaries,  to an amount in excess of the amount of the  Concert  Deductible,
that are due and  payable  by  Thistle  BV or any of the Newco  Subsidiaries  in

<PAGE>

respect of, in the case of Section 25.5(b),  the BT Assets,  the BT GCS Business
or the Contributed BT Subsidiaries (the "BT Pre-Closing Taxes"), and in the case
of Section  25.5(a),  the AT&T Assets,  the AT&T GCS Business or the Contributed
AT&T Subsidiaries (the "AT&T Pre-Closing Taxes"); and (b) any and all Taxes of a
Consolidated  Group or similar group of  companies,  including a value added tax
group or subgroup of which any  Contributed  BT Subsidiary or  Contributed  AT&T
Subsidiary,  respectively, was a member prior to the Closing Date for which such
entity  is  liable by reason of  Treasury  Regulation  Section  1.1502-6  or any
similar  provision  of  state,  local or  foreign  law (such  Pre-Closing  Taxes
described in this clause (b) referred to herein as "BT Consolidated Group Taxes"
and "AT&T  Consolidated  Group  Taxes,"  as  applicable).  Taxes  arising in the
ordinary course of business of Concert Holdings and the Subsidiaries of Concert,
for the period  ending on the  Closing,  to the extent  originally  reflected on
filed  Returns,  shall be BT  Pre-Closing  Taxes to the  extent  paid  after the
Closing and shall constitute the Concert  Deductible to the extent unpaid at the
Closing.  The "Concert  Deductible"  shall mean the sum of (x) the amount of the
Tax reserve set forth on the Concert Financials, and (y) the amount set forth in
the preceding  sentence.  For the avoidance of doubt, any audit adjustments with
respect to such Taxes shall be BT  Pre-Closing  Taxes.  In the case of any Taxes
that are payable  with  respect to a period that begins  before the Closing Date
and ends after the Closing Date (a "Straddle  Period"),  the portion of such Tax
that shall be deemed to be payable for the  portion of the period  ending on the
Closing  Date shall be deemed  equal to the amount which would be payable if the
taxable year ended on the close of business on the Closing Date; provided, that,
in the case of an entity that owns an interest in an entity that is treated as a
partnership for U.S.  federal income tax purposes,  the  determination  shall be
made as if the  partnership's  taxable  year  ended  on the  Closing  Date;  and
provided,  further,  that in the case of any Taxes other than  Income  Taxes for
which such an interim closing of the books method is not practicable, such as in
the case of property  Taxes,  the portion of such Tax that shall be deemed to be
payable for the portion of the period ending on the Closing Date shall be deemed
to be the amount of such Taxes for the entire  period  (or,  in the case of such
Taxes  determined  on an  arrears  basis,  the  amount  of  such  Taxes  for the
immediately  preceding period),  whether actually paid before,  during, or after
such period,  multiplied  by a fraction the  numerator of which is the number of
calendar days in the period ending on (and  including)  the Closing Date and the
denominator  of which is the number of calendar days in the entire  period.  Any
credits for Taxes in the  proviso of the  preceding  sentence  shall be prorated
based upon the fraction employed in such proviso.  Such proviso shall be applied
with respect to Taxes for a Straddle Period  relating to capital  (including net
worth or long-term  debt) or intangibles by reference to the level of such items
at the close of business on the day before Closing Date.

     "Product Unit" shall mean the Business Unit contemplated by Section 2.1(a).

     "Qualifying MNC Customers" shall mean any MNC that is primarily  engaged in
a Selected  Industry  Sector and that meets the objective  criteria set forth in
Schedule  1.1F,  subject to the exceptions  set forth  therein,  and,  except as
provided in Section 7.8, shall include such Person=s Subsidiaries.

     "Reasonable  Best Efforts" shall mean that the obligated  Person shall make
diligent,  reasonable  and good  faith  efforts  to  accomplish  the  applicable
objective.  Such  obligation,  however,  does not require the  incurrence of any
liabilities,  or the  relinquishment of any assets or rights, on the part of the
obligated  Person that in the  aggregate are material when measured by reference
to the benefits anticipated to be obtained from the Newco Group by the Person or
otherwise by reference to the applicable objective,  as the context may require.
The fact that the objective is not actually  accomplished  is no indication that
the  obligated  Person did not in fact  utilize its  Reasonable  Best Efforts in
attempting to accomplish the objective.

<PAGE>

     "Representative"   shall  mean  any  Class  A  Representative  or  Class  B
Representative or the Class C Representative.

     "Rest of World" and "RoW" shall mean those countries and territories not in
either Home Territory. "Return" or "Tax Return" shall mean any report or return,
including  any  supporting  schedules  that  constitute a part of such report or
return,  required to be supplied to any Governmental  Body with respect to Taxes
including, where required or actually filed, a return of a Consolidated Group.

     "Satellite & Radio Services" shall mean Communications Services (other than
VSAT services) delivered through:

     (a)  satellites  using  existing and future  satellite  constellations  and
associated  ground networks and equipment  through (i) services,  in the case of
BT, provided by Eutelsat,  Intelsat and Inmarsat and any successors thereto and,
in the case of AT&T, provided by Comsat and Panamsat and any successors thereto,
and (ii) any other  satellite  business;  provided,  that, in the case of clause
(ii),  the  aggregate  annual  revenues  derived  by any  parent  and its  Group
Companies providing such services shall not exceed the higher of $250 million or
5% of the  aggregate  annual  revenues of the Newco Group for the most  recently
completed Fiscal Year; and

     (b)  terrestrial  radio  solutions  targeted at maritime  and  aeronautical
applications  using  existing  and future  long,  medium and  short-range  radio
systems.

     "Selected  Industry  Sectors"  shall  mean  (a)  the  financial   services,
information  and   electronics   technologies   sectors,   (b)  subject  to  the
satisfaction of the objective criteria specified in Schedule 1.1F, the petroleum
sector,  and  (c) in the  case  of  customers  headquartered  in the  RoW or the
European Region, subject to the satisfaction of the objective criteria specified
in Schedule 1.1F, and in accordance with the timetables and priorities set forth
in such Schedule 1.1F, the other nine industry sectors listed in Schedule 1.1F.

     "Special Content  Services" shall mean data aggregation and  communications
data-based  applications,  and other  communications data applications,  such as
directory assistance or the generation of routing or billing  information,  that
are  designed  to  facilitate  or enable  the  effective  use of  Communications
Services  and  that  are   provided  in   connection   with  the   provision  of
Communications Services by the provider of such Communications Services or by an
Affiliate thereof.

     "Subsidiary" of any Person shall mean 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 other  similar  governing
body of 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.  Notwithstanding  anything in
this  Agreement to the  contrary,  no Person that is not  Controlled  by another
Person shall be deemed to be a Subsidiary of such other Person.

     "Supply  Agreement  (Parent  Components)"  shall mean (a) the Non Regulated
Services  Agreement  between Thistle BV and BT, (b) the agreement for the Supply
of  Regulated  Services  between BT and Thistle BV, (c) the  Services  Agreement
between  Thistle  BV and  AT&T  and  (d)  the  AT&T  Master  Carrier  Agreement,
substantially  in the form attached hereto as Exhibit K-1,  Exhibit K-2, Exhibit
K-3 and Exhibit K-4, respectively.

<PAGE>

     "Systems  Integration"  shall  mean  advising  clients  on how  best to use
information  technology to achieve their ends, to reengineer  business processes
to make organizations work more effectively,  specifying,  designing or building
or  specifying,  designing and building  integrated  business  systems for or on
behalf of  clients,  managing  the  change to such  systems  for or on behalf of
clients,  supporting,  maintaining,  enhancing,  operating or further developing
such  systems  for  or on  behalf  of  clients,  providing  program  or  project
management and integration of customer defined individual customer solutions and
providing other related services  required or requested by clients in connection
with  any of the  foregoing.  Systems  Integration  does  not  include  (a)  the
underlying  capability  to provide  Communications  Services or (b)  Outsourcing
Services.

     "Tax" and "Taxes" shall mean (a) any and all United States, United Kingdom,
or other federal,  state,  local or foreign income,  gross receipts,  net worth,
license, payroll,  employment,  excise, severance,  stamp, occupation,  premium,
customs duties, capital stock, franchise, profits, gains, withholding (including
with respect to any Person,  any Tax of another Person,  required to be withheld
from a payment by such  first  Person  for which  such  first  Person  therefore
becomes liable), social security (or similar),  unemployment,  disability,  real
property, personal property,  intangibles,  sales, use, transfer,  registration,
value added, ad valorem,  alternative or add-on minimum,  estimated or other tax
or governmental charge in the nature of a tax of any kind whatsoever,  from time
to time  imposed  by or  required  to be paid to the United  States,  the United
Kingdom, or another country or any state or local or other political subdivision
of  any  thereof,  or  to  any  other  Governmental  Body  ("Taxing  Authority")
(including  interest,  penalties  and  additions to tax thereon,  penalties  for
failure to file a return or report,  and interest on any of the  foregoing)  and
(b) any  amounts  payable  under any tax  sharing,  indemnification  or  similar
agreements with respect to any Taxes described in clause (a) above.

     "Taxing  Authority"  shall have the meaning set forth in the  definition of
"Tax" or "Taxes."

     "TCGA"  shall  mean the U.K.  Taxation  of  Chargeable  Gains Act 1992,  as
amended, and any successor legislation.

     "TCI" shall mean  Tele-Communications,  Inc., a corporation organized under
the laws of the State of Delaware.

     "Technology  Unit" shall mean the  Business  Unit  contemplated  by Section
2.1(e).

     "Third Party  Approval"  shall mean the Approval of any Person other than a
Governmental Body, a party or any of its Affiliates.
                 
     "Thistle BV Charter  Documents"  shall mean the  constitutive  documents of
Thistle BV substantially in the form attached hereto as Exhibit I.

     "Transaction  Agreements" shall mean (a) this Agreement, (b) the Thistle BV
Charter Documents,  (c) the DirectorCo Charter Documents, (d) the Newco Services
Company Charter Documents,  (e) the Newco Subsidiary Charter Documents,  (f) the
Asset  Contribution  Agreements,  (g) the IPR Agreement,  (h) Exhibit P, (i) the
International Traffic Service Agreements, (j) the Distribution Agreements (Newco
Products),  (k) the Distribution  Agreements (Parent  Products),  (l) the Supply
Agreements (Parent Components),  (m) the Investment Fund Agreement,  and (n) the
Employee Matters Agreement.

<PAGE>

     "Transaction  Gains  Taxes"  shall mean  Income  Taxes and  transfer  Taxes
(including  stamp duty, value added,  Netherlands  capital duty and sales Taxes)
imposed on the parents, their Affiliates,  Thistle BV or the Newco Subsidiaries,
resulting  from:  (a) the  transfer  by the BT  Sellers  of any or all of the BT
Assets or Contributed BT Subsidiaries (the "BT Transaction Gains Taxes"); or (b)
the transfer by the AT&T Sellers of any or all of the AT&T Assets or Contributed
AT&T Subsidiaries (the "AT&T Transaction Gains Taxes"),  in each case,  directly
or  indirectly,  to Thistle BV or any Newco  Subsidiaries  or arising  out of or
relating to the transactions  contemplated by this Agreement (including Schedule
2.2) or by any other Transaction  Agreement or agreement  contemplated hereby or
thereby;  Transaction  Gains  Taxes  that would not have been  incurred  but for
transfers of assets to Netco 1 shall  constitute  "Excluded Taxes" except to the
extent that the parents  agree  otherwise  pursuant  to  Schedule  2.2.  Without
prejudice to the generality of the  foregoing,  if the provisions of section 179
of the TCGA apply to any company as a result of it ceasing to be a member of the
BT U.K. group of companies, or any AT&T U.K. group of companies, any corporation
Tax arising on the  application of that section shall be a BT Transaction  Gains
Tax or an AT&T Transaction Gains Tax, respectively.

     "U.K." or "United  Kingdom"  shall mean the United Kingdom of Great Britain
and Northern Ireland.

     "U.K.  Person" shall mean a Person  established,  organized or incorporated
under the laws of England and Wales.

     "United States" or "U.S." shall mean the United States of America.

     "U.S.  Person" shall mean a Person  established,  organized or incorporated
under the laws of the United States or any political subdivision thereof.

     "Venture Business" shall mean, subject to Section 3.3(c), the businesses to
be conducted by the Business Units of Thistle BV through the Newco  Subsidiaries
as described in Section 2.1. For the avoidance of doubt,  but subject to Section
2.1(f),  the definition of "Venture  Business" does not include the  origination
and termination of  Communications  Services that begin and end in the same Home
Country even if a portion of the transmission thereof includes a second country.

     "VSAT" shall mean very small aperture transmitters.

     "WorldCom" shall mean WorldCom Inc. a corporation  organized under the laws
of the State of Georgia.

     1.2  Additional  Definitions.  The following  terms shall have the meanings
defined in the Section indicated:
                 
Defined Term                                                 Section Reference
- ------------                                                 -----------------

Accountants' Statement                                       Section 15.2

Accounting Principles                                        Section 15.2(a)

Acquisition Cost                                             Section 19.1(b)

<PAGE>

Acquisition Proposal                                         Section 14.2(b)

Acquisition Transaction                                      Section 19.1(a)

Advantaged Party                                             Section 20.3(c)

Affected Party                                               Section 23.6(a)

Agreement                                                    Preamble

Applicable Notice                                            Annex 2

Appraiser                                                    Annex 2

Asserted Liability                                           Section 25.6(a)

Assumed AT&T Liabilities                                     Section 15.1(b)(i)

Assumed BT Liabilities                                       Section 15.1(b)(ii)

Assumed Concert Purchase Debt                                Section 15.5(b)

Assumed Liabilities                                          Section 15.1(b)(ii)

AT&T                                                         Preamble

AT&T Assets                                                  Section 15.3(a)(i)

AT&T GCS Business Financials                                 Section 17.1(h)

AT&T GCS Business MAE                                        Section 17.1(e)(ii)

AT&T Guarantees                                              Section 15.3(d)

AT&T Indemnified Parties                                     Section 25.3

AT&T Initial Valuation                                       Section 15.2(a)

AT&T Leases                                                  Section 17.1(j)(i)

AT&T Minimum Contribution                                    Section 15.4(a)

AT&T Parties                                                 Preamble

AT&T Property Assets                                         Section 17.1(j)(i)

AT&T Specified Contracts                                     Section 17.1(n)(i)

Bankrupt Parent                                              Section 27.1(a)

Breach Notice                                                Section 23.5(b)

breaching party                                              Section 23.4(a)

<PAGE>

BT                                                           Preamble

BT Assets                                                    Section 15.3(a)(ii)

BT GCS Business Financials                                   Section 17.2(h)

BT GCS Business MAE                                          Section 17.2(e)(ii)

BT Guarantees                                                Section 15.3(e)

BT Holdings                                                  Preamble

BT Indemnified Parties                                       Section 25.2

BT Initial Valuation                                         Section 15.2(a)

BT Leases                                                    Section 17.2(j)(i)

BT Minimum Contribution                                      Section 15.4(a)

BT Parties                                                   Preamble

BT Property Assets                                           Section 17.2(j)(i)

BT Specified Contracts                                       Section 17.2(n)(i)

Burdensome Condition                                         Section 18.4(a)

Business Unit Information                                    Section 6.7(a)(i)

Call                                                         Section 23.4(a)

Call Shares                                                  Section 23.4(a)

Cap                                                          Section 15.5(b)

Capital Call                                                 Section 16.2(a)

Capital Call Date                                            Section 16.3

Capital Call Notice                                          Section 16.3

Claim                                                        Section 24.3(a)

Claims Notice                                                Section 25.6(a)

Closing                                                      Section 20.1(a)

Closing Date                                                 Section 20.1(a)

College of Wise Counselors                                   Section 24.1(a)

complying party                                              Section 23.4(a)

<PAGE>

Concert Financials                                           Section 17.2(h)(ii)

Concert Holdings                                             Section 15.5(a)

Confidentiality Agreements                                   Section 18.10(a)

Consumer Price Index                                         Section 11.16

ConsumerCo                                                   Section 1.7

Contracts                                                    Annex 1

Covered Investor Breach                                      Section 22.3(f)

Covered Transaction                                          Section 23.6(a)

deadlock                                                     Section 6.3(a)

Defaulting Shareholder                                       Section 16.4(a)

Designated Accountants                                       Section 15.4(b)

Disadvantaged Party                                          Section 20.3(c)

Distribution of Netco                                        Section 13.2(b)

District Court                                               Section 24.3(a)

Effective Date                                               Section 23.6(a)

Election Notice                                              Section 23.4(a)

Employee Matters Agreement                                   Section 18.8(c)

engaging party                                               Section 19.3(b)

EU Merger Regulations                                        Section 18.3

Event of Default                                             Section 22.3

fair market value                                            Annex 2

Farland                                                      Section 11.18(a)

Farland Equity Stake                                         Section 11.18(b)

Fiduciary Duty Standard                                      Section 11.2(b)

Fiscal Year                                                  Section 6.5

Funding Breach                                               Section 16.4(a)

GBCS Alliance                                                Section 11.5(a)

<PAGE>

Group Companies                                              Section 11.1

Indemnifying Party                                           Section 25.6(a)

Indemnitee                                                   Section 25.6(a)

Indemnity Payment                                            Section 25.8(c)

Independent Auditor                                          Section 6.8

Initial Contributed Assets                                   Section 15.1(a)

Initial Valuations                                           Section 15.2(a)

Investment Fund Agreement                                    Section 18.8(a)

Key Employee                                                 Annex 1

Key Governmental Approvals                                   Section 18.4(a)

Leverage Ratio                                               Section 6.4(a)

Losses                                                       Section 25.2

Management Board Valuation                                   Section 15.2

Master Outsourcing Agreement                                 Section 7.3(d)

Material Acquisition Transaction                             Section 19.3(a)

MCI-WorldCom Distribution Agreement                          Section 9.2(b)

Minimum Contribution                                         Section 15.4(a)

New Assets                                                   Section 19.1(a)

Newco Subsidiaries                                           Recital B

Non-Bankrupt Parent                                          Section 27.1(a)

Non-Competition Undertakings                                 Section 11.2(a)

Non-Defaulting Shareholder                                   Section 16.4(a)

non-engaging party                                           Section 19.3(b)

Non-Indemnifying Party                                       Section 25.5(e)

non-subject party                                            Section 23.3(b)

Other Parent                                                 Section 13.2(a)

Other Party                                                  Annex 2


<PAGE>

Peering Arrangements                                         Section 2.1(g)

Performance Notice                                           Section 23.2(a)

Post-Closing Tax Benefit                                     Section 25.5(a)

preferred supplier                                           Section 10.1(b)

Preferred Supplier                                           Section 10.1(b)

Pro Rata Basis                                               Section 11.4(b)

Proposing Party                                              Annex 2

Provisional AOPB                                             Section 6.3(a)

Purchased Shares                                             Section 15.5(b)

Purchaser                                                    Section 10.1(b)

Put                                                          Section 23.3(b)

Put Notice                                                   Section 23.3(b)

Put Shares                                                   Section 23.3(b)

Qualified Holding Company                                    Section 5.5

Recipient                                                    Section 18.10(b)

Reduction                                                    Section 20.3(b)

Retail Price Index                                           Section 11.16

Revenue Limitation                                           Section 11.4(b)

RTP Acts                                                     Section 28.1(b)

Special Efforts                                              Section 11.2(a)

Specified Entity                                             Section 11.2(a)

Specified Person                                             Section 11.2(a)

subject party                                                Section 23.3(b)

target parent                                                Section 14.2(a)

Tax Distribution                                             Schedule 6.9

Tax Indemnifying Party                                       Section 25.5(e)

Tax Proceeding                                               Section 25.5(e)

<PAGE>

Term Sheet                                                   Section 17.1(r)(vi)

Third Party Supplier                                         Section 10.1(b)

Thistle BV                                                   Preamble

Transfer                                                     Section 12.1(a)

Transition Period                                            Section 23.2(b)

Transition Plan                                              Section 18.8(e)

Triggering Person                                            Section 13.1

Triggering Transaction                                       Section 13.1

Venture Business Material Adverse Effect                     Section 17.1(a)

VLT                                                          Preamble

Voting Securities                                            Section 14.1(a)

WIP                                                          Section 15.4(a)

Wise Counselor                                               Section 24.1(a)
                 
     1.3  General  Principles  of  Construction.   Unless  otherwise  specified,
references herein to Articles,  Sections,  Exhibits, Schedules and Annexes refer
to the Articles,  Sections,  Exhibits,  Schedules and Annexes to this Agreement.
The words "hereof," "herein" and "hereunder," and words of like import, refer to
this Agreement as a whole and not to any  particular  Article or Section of this
Agreement.  References  to this  Agreement  herein  shall,  unless  the  context
otherwise  requires,  include the Exhibits,  Schedules and Annexes  hereto.  The
words  "without  limitation"  shall  be  deemed  to  follow  any use of the word
"include" or "including" herein.  References to amounts preceded by the "$" sign
shall  refer to Dollars but shall also be deemed to include  the  equivalent  in
other currencies (it being agreed that, where the context  requires,  the actual
currency of transactions  will be mutually agreed by the parties  thereto).  The
parties  acknowledge that the Schedules to this Agreement (i) are not admissions
as to the validity of any claim by any third Person and (ii) are not intended to
constitute and shall not be construed as indicating that such matter is required
to be disclosed,  nor shall such  disclosure  be construed as an admission  that
such  information is material or that it would have a Material  Adverse  Effect.
Disclosure  of the  information  contained  in one section or part of a parent's
Schedules shall be deemed as proper disclosure for all sections or parts of such
parent's  Schedules to the extent its  relevance  to another  section or part is
clearly apparent from the face of such Schedule.
         
     1.4 Variations in Pronouns.  All pronouns and any variations  thereof refer
to the  masculine,  feminine or neuter,  singular or plural,  as the context may
require.

     1.5 Headings.  The headings in this  Agreement  are for reference  only and
shall not affect the interpretation of this Agreement.

<PAGE>

     1.6 Liberty Media Group.

     (a) For the avoidance of doubt,  notwithstanding anything in this Agreement
or the  other  Transaction  Agreements  to the  contrary,  (i) no  member of the
Liberty  Media  Group  shall be deemed  to be  Controlled  by (or an  Affiliate,
Subsidiary  or Group  Company of) AT&T,  any of its Covered  Investors or any of
their Affiliates or Subsidiaries,  (ii) no determination that is to be made with
reference to AT&T, any of its  Affiliates,  Subsidiaries,  Covered  Investors or
Group Companies  shall include any member of the Liberty Media Group,  and (iii)
none of AT&T or any of its  Affiliates  or  Liberty  Media  Group  or any of its
Affiliates  shall be  required to propose,  negotiate,  commit to or effect,  by
consent  decree,  hold separate  order or otherwise,  the sale,  divestiture  or
disposition of, or any limitation or restriction  with respect to, any property,
business,  assets,  licenses,  franchises  or other  rights of any member of the
Liberty Media Group.
                  
     (b) If AT&T shall amend, modify, restrict, limit or waive any provisions of
Section 7.18 of, or Schedule 7.18 to, the  Agreement  and Plan of  Restructuring
and Merger dated as of June 23, 1998 among AT&T,  Italy Merger Corp. and TCI (or
the corresponding  provisions  thereof in any successor  documentation)  and the
effect of any such amendment,  modification,  restriction,  limitation or waiver
would, in BT's judgment,  significantly delay or preclude the receipt of the Key
Governmental  Approvals  required  for  the  consummation  of  the  transactions
contemplated  by the  Transaction  Agreements,  then,  on the  expiration of the
18-month period provided in Section 20.2(a),  if the Key Governmental  Approvals
shall  not  have  been  obtained  for  the  transactions   contemplated  by  the
Transaction  Agreements,  BT shall have the right to decide, by giving notice in
writing to AT&T on or before the  nineteenth  month  anniversary  of the date of
this  Agreement,  whether or not it wishes to require  both the AT&T Parties and
the BT Parties to  continue to be bound by the terms of this  Agreement  and the
other Transaction Agreements for a period specified by it of up to an additional
12 months  after the  expiration  of the  18-month  period  provided  in Section
20.2(a) or to terminate this Agreement and the other Transaction Agreements.  If
BT shall not have  exercised its right to terminate the  Transaction  Agreements
prior to the end of the 30-month  period  following the date hereof,  and if the
Key  Governmental  Approvals  have  still not been  obtained  by the end of such
30-month  period and such failure was in some meaningful part caused by any such
amendment, modification, restriction, limitation or waiver, unless either of the
BT Parties is in material  breach of their  obligations  under this Agreement or
any other  Transaction  Agreement,  following the termination of the Transaction
Agreements at the end of such 30-month  period,  AT&T shall make a payment to BT
in accordance with the provisions of Section 19.3(f),  which Section shall apply
mutatis mutandis to the circumstances described in this Section 1.6(b).
         
     1.7 Consumer  Company.  In  connection  with the  reorganization  of AT&T's
business, the company or business unit of AT&T to be established to own, manage,
and operate its  consumer  businesses  ("ConsumerCo")  shall be deemed a part of
AT&T for all purposes of this Agreement and the other Transaction  Agreements so
long as such  businesses  remain a division of AT&T or constitute one or more of
its Subsidiaries.

                                    ARTICLE 2
                                THE JOINT VENTURE

     2.1  Venture  Business.  In  furtherance  of the  purposes  of the  Venture
Business, the Newco Group will undertake the following activities, each of which
will  initially be run as a separate  Business  Unit,  through one or more Newco
Subsidiaries:

<PAGE>

     (a) Product Unit. This Business Unit will be  functionally  responsible for
defining,  marketing and managing Global Business  Communications  Services.  It
will conduct product management for the Global Business  Communications Services
of the Newco Group, providing international product development requirements and
controlling  the delivery of  products,  appointing  and  managing  Distributors
(subject  to  the  provisions  hereof)  and  managing   relationships  with  its
suppliers. As used herein, marketing and managing Global Business Communications
Services shall mean product  marketing and managing and shall not preclude sales
packaging  or  customer  specific  offers  and sales made by AT&T or BT or their
Group Companies to customers other than Qualifying MNC Customers,  provided that
such offers and sales comply with Section 9.2.
                  
     (b) International Carrier Services Unit. This Business Unit will provide to
AT&T and BT and, subject to the terms and conditions hereof,  their Subsidiaries
all of their requirements for International Traffic Termination  Services,  will
provide Carrier Services for third parties and may provide Peering  Arrangements
as  contemplated  by Section 2.1(g) for the parents and their  Affiliates.  This
Business  Unit  will be  functionally  responsible  for all  relationships  with
International  Carriers in their  capacity as  carriers  and will plan,  manage,
market,  bill,  provide  channel and  customer  care  support for  International
Carrier  Services.  Exhibit P sets forth the principles for the operation of the
International Carrier Services Unit.

     (c) MNC Unit. This Business Unit will (i) market, sell, contract,  deliver,
manage,  maintain  and bill  Communications  Services  provided  or  targeted to
Qualifying MNC Customers, and (ii) provide "Tier 1 Customer Care" referred to in
Schedule 2.1(c) and billing to Qualifying MNC Customers.

     (d) Network and Systems  Unit.  This Business Unit will own and operate the
Newco Group's Global Network  Facilities.  It will be responsible for conducting
all international network activities,  including asset planning, procurement and
implementation and will design,  build,  lease,  operate and manage high quality
Global Network Facilities that support Global Communications Services,  hubbing,
transit,   reoriginating,   global  consumer   traffic  and  other   crossborder
Communications  Services.  It will  manage on behalf  of the Newco  Group  order
entry,  provisioning,  repair and maintenance,  network management,  Operational
Systems  Support and billing  systems.  It will  design,  plan,  build or lease,
manage,  transition and integrate network and systems platforms into one network
for both the Product Unit and the International  Carrier Services Unit, although
the overall design and development of architecture will be the responsibility of
the Technology Unit.

     (e) Technology  Unit.  This Business Unit will be responsible  for defining
the interfaces and platforms for the Newco Group=s Global Network Facilities and
managing  development  projects  for the  delivery of new Global  Communications
Services.  This Business Unit will also be responsible for developing  interface
requirements  to permit  seamless  delivery of services and features  across the
networks of the Newco  Group,  AT&T and BT and their  Subsidiaries,  and, to the
extent  possible,   other  Distributors.   This  Business  Unit  will  recommend
technology  architecture  to each  parent,  but  neither  parent  nor any of its
Subsidiaries shall be required to accept or adopt such recommendations.

<PAGE>

     (f) Scope of Venture Business. Nothing in this Agreement shall preclude (i)
customers  from  requesting or making use of products or services  obtained from
the Newco  Group in such  manner as they shall  determine,  or (ii) sales by the
Newco Group of Communications Services to Qualifying MNC Customers.

     (g) Other  Activities.  Without imposing any legally binding  obligation on
the parties and without limiting Section 26.1, the parents intend to investigate
and evaluate  opportunities  for the sale by the Newco Group of global  wireless
and other services to the international  traveler.  "Peering Arrangements" means
interconnection  with third party providers of IP backbone  facilities.  For the
avoidance  of  doubt,  the  Newco  Group  shall  be able to enter  into  peering
arrangements in any country, provided, that, the peering arrangement is to carry
IP traffic  that is  inter-country  and that does not  originate  and  terminate
within the same country.  This does not limit the rights of the parents to enter
into peering  arrangements as they deem  necessary,  consistent with Article 11.
AT&T and BT each  believes  that a  potential  prospective  benefit of the Newco
Group is to enhance the competitiveness of their respective IP activities and to
improve their peering  relationships.  In order fully to take  advantage of such
potential,  the parties agree to study the  advantages  of permitting  the Newco
Group to engage in peering  arrangements on behalf of AT&T and BT as well as any
adverse or divergent impacts that these arrangements may have on the parents and
to propose to the parents how best to deal with  peering  arrangements  by March
31, 1999.

     2.2 Structure.

     (a) The parties  contemplate  that the  activities of the various  Business
Units will be conducted  through the Newco  Subsidiaries  identified in Schedule
2.2. Schedule 2.2 specifies in reasonable detail information with respect to the
structure  of the Newco  Group to be in effect on the Closing  Date,  including,
with respect to each existing or presently  contemplated  Newco Subsidiary,  (i)
its organizational form, (ii) its jurisdiction of organization or incorporation,
(iii)  its  capitalization,  including  the  nature  and  classes  of  shares or
ownership interests,  (iv) its direct and indirect ownership by the parties, and
(v) which  activities of the various  Business Units will initially be conducted
by such Newco Subsidiary.

     (b) The parties shall,  and shall cause their  Subsidiaries  and Thistle BV
to, establish,  to the extent necessary,  the Newco  Subsidiaries  identified on
Schedule  2.2,  and  such  other  Subsidiaries,  with  such  structure  and  tax
characteristics  as the parties may agree between the date of this Agreement and
the Closing Date, so that the structure and tax  characteristics as contemplated
by such  Schedule will be in effect on or as soon as  practicable  following the
Closing Date.

     2.3  Principal  Place of Business.  The parties  intend that the  corporate
headquarters for the Newco Group will be on the East Coast of the United States.

     2.4 IPR Matters.  The  ownership,  licensing and other  matters  concerning
relevant  IPR of the  parents  and IPR of the Newco  Group  shall be  handled in
accordance with the IPR Agreement, which shall be executed concurrently with the
execution and delivery of this Agreement.

<PAGE>

     2.5  Arrangements  with U.S.  Government.  Schedule 2.5  contains  mutually
agreed  provisions  relating to issues,  if any, relating to ways to address the
provision of Communications Services to the U.S. Government.

                                    ARTICLE 3
                                   GOVERNANCE

     3.1  Shareholders  of Thistle BV.  Following the Closing Date,  the parents
shall, and in their capacity as direct and indirect  shareholders and members of
the Newco Group,  shall,  or shall cause their direct and indirect  Subsidiaries
and  Affiliates  that are  shareholders  or members of any or all of Thistle BV,
Newco Services Company, DirectorCo and the Newco Subsidiaries to, and Thistle BV
as a direct or indirect  shareholder or member of the Newco Subsidiaries  shall,
vote their  shares or member  interests  at any meeting of the  shareholders  or
members,  or class of  shareholders  or  members,  as the case may be, or in any
written  resolution  executed  in lieu of a  meeting,  and shall  take all other
actions  necessary,  to comply with and perform the provisions  and  obligations
contained in this Agreement and the other Transaction Agreements,  and to ensure
that the Charter  Documents and any constitutive  documents of any other members
of the Newco Group do not  conflict in any respect with any  provisions  of this
Agreement  or the other  Transaction  Agreements.  The  parties  and  Thistle BV
undertake,  to the fullest extent permitted by Applicable Law, to make, or cause
to be made,  such  changes to the Charter  Documents  and any such  constitutive
documents  as  may be  appropriate  to  bring  them  into  compliance  with  the
provisions of this Agreement and the other Transaction Agreements.  In the event
of any conflict  between the  provisions of the  Transaction  Agreements and the
provisions  of any of the Charter  Documents  or the  constitutive  documents of
other Newco Subsidiaries, the provisions of the Transaction Agreements shall, to
the fullest extent permitted by Applicable Law, prevail. Schedule 3.1 sets forth
the principles  upon which any conflict  between the express  provisions of this
Agreement,  on the one hand, and any of the other  Transaction  Agreements  that
deal with the same subject matter, on the other hand, will be resolved.

     3.2 Thistle BV  Shareholders'  Meetings.  Following the Closing  Date,  the
quorum necessary to constitute a meeting of the shareholders of Thistle BV shall
be the shareholders  holding a majority of the outstanding  voting securities of
Thistle BV or their proxies.  Notwithstanding  the foregoing,  if such quorum is
not present  within two hours from the time appointed for the meeting in respect
of which due notice has been given,  the meeting shall adjourn to such place and
time (which is at least seven days later but no later than 14 days later) as the
shareholder  that did attend shall decide.  If at such adjourned  meeting,  such
quorum is not present  within two hours from the time appointed for the meeting,
the meeting shall be further adjourned to such place and time (which is at least
seven days later but no later than 14 days  later) as the  shareholder  that did
attend the adjourned meeting shall decide, at which time any shareholder present
at such second adjourned meeting shall constitute a quorum, but in no event will
the shareholder be allowed to decide on the U.K. as a location for the meeting.

     3.3 Matters Requiring Unanimous Shareholder Approval. Following the Closing
Date,  the  following  matters  and  decisions,  and the  implementation  of any
thereof, shall require the unanimous vote of VLT and BT Holdings,  acting as the
shareholders of Thistle BV:

<PAGE>

     (a) a decision to modify,  amend or terminate any Transaction  Agreement or
any constitutive or equivalent documents of any material Newco Subsidiary (which
documents are not included in the definition of "Transaction Agreements");

     (b)  other  than a  Distribution  of Netco  pursuant  to  Section  12.3(c),
13.2(a), 14.3(c), 16.4(c), 23.2(d), 23.6(b) or 27.1(c), a decision to change the
fundamental corporate,  legal,  regulatory,  tax or other structure of the Newco
Group,  including a decision to restructure any member of the Newco Group or the
Business  Units or a decision  to modify any  arrangements  with  respect to the
conduct of the business of the Newco Group contemplated by Schedule 2.2, that is
reasonably  likely to have a non de  minimis  adverse  regulatory  or Tax effect
(including an adverse Tax effect that is caused by reason of an  indemnification
obligation hereunder), or material adverse economic effect, on either parent;

     (c) a  decision  to modify,  change or alter in any  material  respect  the
nature or scope of the  Venture  Business  as it may be  conducted  from time to
time;

     (d) except as set forth in Schedule  6.9, a decision  for Thistle BV to pay
or make any dividends or  distributions;  provided,  that, in connection  with a
Distribution of Netco pursuant to Section 12.3(c),  13.2(a),  14.3(c),  16.4(c),
23.2(d),  23.6(b) or  27.1(c),  VLT and BT Holdings  shall vote their  shares in
Thistle BV in favor thereof;

     (e) a decision to cause any member of the Newco Group to incur or guarantee
any Indebtedness that involves recourse to either an AT&T Party or a BT Party or
is to be guaranteed by either of the parents or its Group Companies;

     (f) a decision to admit, directly or indirectly, additional shareholders to
Thistle  BV,  additional  members of Newco  Services  Company or  DirectorCo  or
additional shareholders or members of any of the Newco Subsidiaries;

     (g) the  dissolution or  liquidation  of, or the filing of a petition under
any  Bankruptcy  Law by  Thistle  BV or any other  material  member of the Newco
Group; provided,  that, in the case of a dissolution of the Newco Group pursuant
to Section  11.2(d),  11.5(c)(iii),  13.4, 13.5, 14.3, 23.2, 23.4, 23.5 or 23.7,
following  the  delivery  of a notice to elect to cause the  dissolution  of the
Newco  Group  by a parent  which is  entitled  to do so  thereunder,  VLT and BT
Holdings shall,  subject to any cure periods provided herein,  vote their shares
of Thistle BV, and the parents shall cause their Subsidiaries or Affiliates that
own shares or other equity interests in such material members of the Newco Group
to vote, in favor of such dissolution;

     (h)  other  than a  Distribution  of Netco  pursuant  to  Section  12.3(c),
13.2(a),  14.3(c),  16.4(c),  23.2(d),  23.6(b)  or  27.1(c),  any sale,  lease,
transfer or other  disposition of all or substantially  all of the assets of the
Newco Group or the merger, demerger,  consolidation or sale of Thistle BV or any
material  member of the Newco  Group,  other than  pursuant to Section  11.2(d),
11.5(c)(iii), 13.4, 13.5, 14.3, 23.2, 23.4, 23.5 or 23.7;

     (i)  other  than a  Distribution  of Netco  pursuant  to  Section  12.3(c),
13.2(a),  14.3(c), 16.4(c), 23.2(d), 23.6(b) or 27.1(c), any transfer of assets,
transfer  of equity or other  interests  in any  member of the Newco  Group,  or
similar  transaction  involving any member of the Newco Group that is reasonably
likely to have an adverse Tax (including an adverse Tax effect that is caused by
reason of an  indemnification  obligation  hereunder)  or other effect on either
parent involving  aggregate costs or potential costs to such parent in excess of
$10 million; and

<PAGE>

     (j) a decision to change the Independent Auditor.

     3.4 Management Board.

     (a) From and after the Closing, the Management Board will at all times have
DirectorCo as its sole director. The chairman of DirectorCo will rotate every 18
months from a Representative of one Class to a Representative of the other Class
(in each case excluding the Class C Representative).

     (b) Each of VLT and BT Holdings, as a shareholder of Thistle BV, shall vote
its  shares of  Thistle  BV to ensure the  election  of  DirectorCo  as the sole
director of the Management Board. Each of VLT and BT Holdings,  as a shareholder
of Thistle  BV,  shall vote its shares of Thistle BV against any  resolution  to
remove or suspend  DirectorCo  from its position as the sole director of Thistle
BV.

     (c) The Management Board shall oversee the day-to-day management of Thistle
BV and, to the fullest extent permitted by Netherlands law,  delegate to the CEO
full  authority  and power to manage and operate the business and affairs of the
Newco Group in accordance with and subject to Section 5.4.

     3.5 Special  Decisions of the Management  Board. The following  matters and
decisions,  and the implementation of any thereof, shall require the approval of
the Management  Board,  with DirectorCo,  as the sole director of the Management
Board, acting pursuant to a majority vote of each of the Class A Representatives
and the Class B Representatives:

     (a) approval of the AOPB and Five Year Business Plan; provided, that if the
requisite vote of the Representatives of DirectorCo, acting as the sole director
of the  Management  Board,  is not obtained  for any AOPB or Five Year  Business
Plan,  the CEO shall  implement a  Provisional  AOPB to the extent  permitted by
Section 6.3;

     (b) a decision to select,  hire, appoint and dismiss the Agreement Officers
and the CTO;

     (c) any  modification  of the  schedule  of  authorizations  or  powers  or
equivalent instrument of Thistle BV or any of the Newco Subsidiaries;

     (d) a decision  to make or to cause any  member of the Newco  Group to make
any acquisitions,  divestitures,  licenses, investments and joint ventures, in a
transaction  or series of related  transactions,  involving  property  or assets
valued at $25 million or more or any such acquisitions,  divestitures, licenses,
investments  and joint  ventures of major  strategic  significance  to the Newco
Group as a whole, as determined by the Management Board, regardless of the value
thereof;

     (e) a  decision  to  purchase,  or cause any  member of the Newco  Group to
purchase, in a transaction or series of related transactions, New Assets with an
Acquisition Cost in excess of $25 million;

     (f) except as  contemplated  by any approved AOPB or amendment  thereof and
except as reserved to the shareholders of Thistle BV pursuant to Section 3.3(e),
any  material  changes in the  capitalization  of any member of the Newco Group,
including the making of any Capital Calls;

<PAGE>

     (g) a decision to adopt or modify (i) any accounting  rules and policies of
the Newco Group or (ii) Tax  elections of the Newco Group,  which in the case of
clause (ii) may adversely affect either parent;

     (h) any change in the branding policy of the Newco Group;

     (i)  instituting,  compromising,  terminating or settling  litigation  with
third parties involving claims or related claims of $10 million or more;

     (j) other than with respect to the  Transaction  Agreements that constitute
Affiliate  Transactions,  a decision to enter into any Affiliate  Transaction by
any  member of the Newco  Group with a value of $20  million or more,  including
entering into any amendment, modification or termination thereof;

     (k)  subject to Section  5.3,  the conduct and  evaluation  of  performance
reviews of the CEO, CFO and CTO;

     (l) the entering into,  amendment,  modification  or termination of, or the
calling of a default under,  or the grant by Thistle BV or any Newco  Subsidiary
of any waivers or consents  under,  any third party  contracts or agreements for
the  purchase  or sale  of  goods  or  services,  license  agreements  or  other
agreements or  arrangements,  involving annual payments in excess of $20 million
or aggregate payments in excess of $40 million;
                
     (m) a decision required to be made under Section 8.3 or 8.5;

     (n) a decision required to be made under Section 9.1(c)(i);

     (o) a decision by any member of the Newco  Group to incur any  Indebtedness
that would cause the Leverage Ratio to be exceeded; and

     (p) any action or decision that would have a Material Adverse Effect on the
Venture Business or on the Newco Group's  relationship  with AT&T or BT or both.
For the  purposes  of this  Section  3.5(p),  any  action  or  decision  that is
reasonably  likely to (i)  result in any  member  of the Newco  Group  incurring
liabilities or contingent  liabilities in excess of $10 million,  (ii) cause any
Business  Unit to be unable to  operate,  (iii)  result in a material  breach by
Thistle BV or any of the Newco Subsidiaries of a material contract, agreement or
other  arrangement  with either parent or any of its Affiliates,  or (iv) have a
material adverse regulatory or Tax impact on either parent, shall, in each case,
be  deemed to be an  action  or  decision  that  requires  the  approval  of the
Management Board as set forth in this Section 3.5(p).

     3.6 Other Decisions of the Management Board.

     (a) Except as set forth in Sections  3.5, 8.1, 8.2 and 8.4 and Article 4 or
as otherwise  specified  herein,  all matters coming before the Management Board
shall  require a vote by  DirectorCo,  as the sole  director  of the  Management
Board,  acting pursuant to a simple majority vote of the Class A Representatives
and  Class  B  Representatives   without  any  required  vote  of  the  Class  C
Representative;  provided, that, if an even number of votes is cast by the Class
A Representatives and the Class B Representatives for and against any particular
matter that is to be decided by a simple majority of the DirectorCo  Board,  the

<PAGE>

Class  C  Representative  may  cast  a  vote  on  the  matter  to  break  a tie.
Notwithstanding the foregoing,  if pursuant to this Agreement,  the Affiliate of
AT&T or BT that is a member of  DirectorCo  shall  have the right to  appoint an
eighth  Representative to the DirectorCo Board, the Class C Representative shall
not  have  the  right  to cast  any  vote on any  matter  to be  decided  by the
DirectorCo  Board  unless  and  until  the  number  of  Representatives  on  the
DirectorCo Board (assuming no vacancies) is reduced to seven, comprised of three
Class  A  Representatives,  three  Class  B  Representatives  and  the  Class  C
Representative.

     (b) Decisions  regarding the calling of a default under, or the granting by
Thistle  BV or any Newco  Subsidiary  of any  waivers  or  consents  under,  any
Transaction  Agreement  or with  respect to any  Affiliate  Transaction,  or any
decision  by Thistle  BV to bring any claim for  indemnification  under  Section
25.4(c),  (d) or (e) or Section 25.5 against a parent may be made by  DirectorCo
on behalf of Thistle BV or such Newco Subsidiary,  as the case may be, but shall
not  require  the  consent  of  the  Class  C  Representative  or the  Class  of
Representatives  appointed by the Person that is the Affiliate of AT&T or BT, as
the case may be, who is or is affiliated with the Person in default,  or seeking
the  waiver or consent  under,  the  applicable  Transaction  Agreement  or with
respect  to  an   Affiliate   Transaction   or   against   whom  the  claim  for
indemnification  is made. Any such decision may be made and effected by the vote
of a majority of the Class of  Representatives  appointed  by the Person that is
the Affiliate of the other parent.

     3.7 Newco Subsidiary  Boards.  The management and constitution of the board
of directors or other similar  governing body of the Newco  Subsidiaries will be
appropriate to reflect the decisions of the DirectorCo  Board as contemplated by
the DirectorCo Charter Documents. The Newco Subsidiary Charter Documents and the
constitution of the boards of directors or other similar governing bodies of all
material Newco  Subsidiaries  shall, on or prior to the Closing,  be in form and
substance  reasonably   satisfactory  to  the  parents  and  shall  reflect  the
provisions  of Schedule 2.2 and Annex 3 and comply with the  provisions  of this
Agreement.

     3.8 Implementation of Management Board Decisions.

     (a) To the fullest  extent  permitted by Applicable  Law, AT&T and BT shall
and shall cause their  Subsidiaries  and Affiliates  that are direct or indirect
shareholders or members of certain of the Newco Subsidiaries, and Thistle BV, in
its  capacity  as a direct  or  indirect  shareholder  or  member  of the  Newco
Subsidiaries  shall and shall cause, the persons  nominated by them to the board
of  directors  or other  similar  governing  body of the Newco  Subsidiaries  to
conduct and have  conducted the management and affairs of each of the members of
the Newco Group in accordance with the decisions of the Management Board.

     (b) The parties  acknowledge and confirm that the Management  Board and the
Representatives  on the DirectorCo Board will exercise  business judgment taking
into  account  the  interests  of the  Newco  Group  as a  whole  and  that,  in
furtherance  of  such  objective,  DirectorCo,  as  the  sole  director  of  the
Management  Board,  and the  Representatives  on the  DirectorCo  Board shall be
protected in making and shall be entitled,  to the fullest  extent  permitted by
Applicable Law, to indemnification by Thistle BV, the Newco Group and DirectorCo
for any act or  omission if it or they acted in good faith and in a manner it or
they  reasonably  believed was in, or not opposed to, the best  interests of the
Newco  Group as a whole.  Prior to the  Closing,  DirectorCo,  or the parents on
behalf of DirectorCo,  shall arrange for an appropriate directors= and officers=
insurance policy to be in place and effective as of the Closing for the managers
and officers of DirectorCo.

<PAGE>

     3.9 Regulatory Affairs.

     (a) If,  after the  Closing,  Thistle  BV or any of the Newco  Subsidiaries
proposes to take any proposed position or action on a regulatory,  public policy
or public affairs matter in a parent's Home Territory, Thistle BV shall give the
responsible  officer or officers of such parent reasonable prior notice thereof,
which notice need not be in writing.  If the parent determines that Thistle BV's
or the Newco  Subsidiary's  proposed  position or action would conflict with the
position of such  parent,  it will give the  responsible  officer or officers of
Thistle BV reasonable  notice,  which notice need not be in writing,  before the
date the proposed position or action is to be taken,  specifying the steps which
such parent wishes Thistle BV or the Newco Subsidiary to take. Thistle BV shall,
or shall cause the Newco  Subsidiary  to, comply with the  instructions  of such
parent.  (b) On or prior to the  Closing  Date,  Thistle  BV shall  establish  a
regulatory  clearance  group  mutually  agreeable  to the  parents  that will be
responsible  for dealing with day-to-day  issues relating to regulatory,  public
policy and public affairs matters of the Newco Group.

                                    ARTICLE 4
                           TECHNOLOGY UNIT GOVERNANCE

     4.1  CTO.  The  Technology  Unit  will be led by the CTO,  who will  report
directly to the Management Board.

     4.2 Annual  Business  Plan. No later than 90 days prior to the beginning of
each Fiscal Year, the CTO will submit to the Management  Board for approval,  an
annual  business plan of the  Technology  Unit,  which will be separate from the
AOPB and will include a program description, associated milestones, staffing and
budget requirements.  The approval of the annual business plan of the Technology
Unit shall not be subject to the  tie-break  vote of the Class C  Representative
set forth in Section 3.6.

     4.3  Governance.  The Technology  Unit shall be operated in accordance with
the governance principles set forth in Schedule 4.3.

     4.4 CTO. The first CTO shall be appointed in accordance with the principles
set forth in Schedule 4.4.

                                    ARTICLE 5
                                   MANAGEMENT

     5.1 Senior Executives.  On or prior to the Closing Date, the first CEO, the
other  Agreement  Officers  and the CTO will be selected  and  appointed  upon a
decision of the Management  Board in accordance with Section 3.5(b) on the basis
of the "best available  candidate." The re-appointment of the Agreement Officers
and the CTO and any subsequent  appointment  to such positions  shall be subject
also to the decision of the Management Board in accordance with Section 3.5(b).

     5.2 CEO. The CEO will not be a member of the Management  Board, but will be
the sole Class C Representative  of the DirectorCo Board. The CEO, in his or her
capacity as the Class C Representative, shall be entitled to attend all meetings
of the Management Board and the DirectorCo Board,  other than (a) those meetings
or  portions  thereof  involving  discussion  of his or her own  performance  or
compensation  or (b) other  meetings  or portions  thereof  which do not involve
matters on which the Class C  Representative  is entitled to vote under  Section
3.6(a) and for which a majority of either of the Class A Representatives  or the
Class B  Representatives  determines that the CEO, in his or her capacity as the
Class C Representative, should be absent.

<PAGE>

     5.3 Performance Reviews.  Each of the CEO, CFO and CTO will be subject to a
mandatory annual  performance  review in the fourth quarter of each Fiscal Year.
If all of  either  the Class A  Representatives  or Class B  Representatives  is
dissatisfied  with the  performance  of any or all of the CEO, CFO or CTO,  such
Class of  Representatives  may require the  Management  Board to institute a new
search for a replacement or replacements and the Management Board shall consider
in good  faith the best  alternative  candidates  presented  as a result of such
search.

     5.4  Responsibilities  of the CEO.  Subject to the rights and duties of the
Management  Board  and  the  shareholders  of  Thistle  BV as  provided  in this
Agreement,  and except as otherwise  provided in this  Agreement or in any other
Transaction  Agreement,  to the fullest extent  permitted by Applicable Law, the
CEO shall be  responsible  for the  day-to-day  management  of the Newco  Group,
including the following matters:

     (a) subject to Schedule  2.2,  allocating  resources  between the  Business
Units or Newco Subsidiaries within the AOPB and Five Year Business Plan approved
by the Management Board or within any Provisional AOPB;

     (b) monitoring the  performance of the Newco Group as a whole and reporting
to the Management Board or the shareholders of Thistle BV, as required;

     (c)  overseeing  the  regulatory,  public policy and public  affairs of the
Newco  Group as a whole,  including  obtaining  a parent's  approval  on matters
arising in such  parent's  Home  Territory  consistent  with the  provisions  of
Section 3.9(a);

     (d) making decisions on acquisitions,  divestitures,  licenses, investments
and  joint  ventures,  in a  transaction  or  series  of  related  transactions,
involving property or assets valued at less than $25 million, excluding any such
transactions  (i) involving a third party acquiring an interest in Thistle BV or
any Newco  Subsidiary or (ii) which are of major  strategic  significance to the
Newco Group as a whole as determined by the Management Board,  regardless of the
value thereof;

     (e)  preparing  and  submitting  to the  Management  Board  the AOPB and an
annually  updated Five Year Business Plan and  implementing the AOPB approved by
the Management Board or a Provisional AOPB;

     (f)  implementing  the policies and  direction of the  Management  Board in
matters such as employee policies, security, media relations and compliance;

     (g) except as otherwise  reserved to the  Management  Board,  selecting and
appointing staff;

     (h)  instituting,  compromising,  terminating or settling  litigation  with
third parties involving claims or related claims of less than $10 million;

     (i) other than with respect to the  Transaction  Agreements that constitute
Affiliate Transactions,  entering into an Affiliate Transaction with a value, in
a  transaction  or series of  related  transactions,  of less than $20  million,
including entering any amendment, modification or termination thereof or calling
a default thereunder or granting any waiver or consent thereunder,  in all cases
on an arm's length basis;

<PAGE>

     (j) restructuring the Business Units, so long as such action has no adverse
regulatory or Tax effect,  including any adverse Tax effect  arising as a result
of an indemnification obligation hereunder, or material adverse economic effect,
on either parent; provided,  however, that the CEO shall have no power to modify
any of the arrangements with respect to the conduct of the business of the Newco
Group  contemplated  by Schedule 2.2 or to restructure  the  Technology  Unit or
conduct  any other  restructuring  that  constitutes  a matter  reserved  to the
shareholders  of Thistle BV under Section 3.3 or to the  Management  Board under
Section 3.5;
                  
     (k) ensuring  compliance  by the Newco Group with all legal and  regulatory
requirements; and

     (l) the entering into,  amendment,  modification  or termination of, or the
calling of a default under,  or the grant by Thistle BV or any Newco  Subsidiary
of any waivers or consents  under,  any third party  contracts or agreements for
the  purchase  or sale  of  goods  or  services,  license  agreements  or  other
agreements or  arrangements,  involving annual payments of less than $20 million
or aggregate payments of less than $40 million.

     5.5  Restriction on the Activities of Thistle BV. Each of the parties shall
(a) at all times take all such action as may be required to ensure that  Thistle
BV is at all times after the  Closing a "company  whose  activities  are limited
entirely or almost entirely to management and financing of affiliated  entities"
("een vennootschap  wiens werkzaamheid zich uitsluitend of nagenoeg  uitsluitend
beperkt tot het beheer en de financiering van groepsmaatschappijen")  within the
meaning of Book 2,  article  263,  paragraph  3(b),  of the Dutch  Civil Code (a
"Qualified  Holding  Company") and (b) refrain from taking any action that would
cause Thistle BV at any time to cease to be a Qualified Holding Company. Without
limiting the generality of the foregoing, (i) Thistle BV shall not engage in any
business  or  activity  other than the  management  and  financing  of the Newco
Subsidiaries,  (ii) all day-to-day  business operations of the Newco Group shall
be conducted by the Newco  Subsidiaries and not by Thistle BV, and (iii) Thistle
BV shall not have any employees other than the Agreement Officers and the CTO.

                                    ARTICLE 6
                      FINANCE AND OTHER OPERATIONAL MATTERS

     6.1 AOPB and Five Year Business  Plan. The first Five Year Business Plan of
the Newco  Group has been  agreed to  concurrently  with the  execution  of this
Agreement.  The first AOPB shall be agreed by the parents  prior to the Closing.
Thereafter, the CEO and CFO shall be responsible for the preparation of the AOPB
and an annually  updated Five Year  Business  Plan for the Newco Group,  each of
which shall be submitted to the Management  Board for its approval in accordance
with Section  3.5(a) no later than 90 days prior to the beginning of each Fiscal
Year.  The AOPB and Five Year  Business  Plan shall have the same form and shall
address the same matters,  including the  aggregate  requirements  for equity or
debt  funding,  or both,  from each of VLT and BT Holdings as the first AOPB and
Five Year Business Plan, subject to any changes approved by the Management Board
pursuant to Section 3.5(a).

     6.2  Implementation  of AOPB and Business  Plan.  With respect to the first
AOPB and Five Year  Business  Plan and,  following  approval  by the  Management
Board,  any  subsequent  AOPB and Five Year Business Plan, and with respect to a
Provisional AOPB,  Thistle BV will cause its officers and employees and those of
the Newco  Subsidiaries to conduct the operations of such Newco  Subsidiaries in
accordance therewith.

<PAGE>

     6.3 Deadlock on AOPB.

     (a) If the  requisite  vote of the  Management  Board  for an AOPB  for any
Fiscal  Year is not  obtained  (a  "deadlock")  by December 1 of the Fiscal Year
prior to the Fiscal Year to which the AOPB pertains,  an expense budget shall be
deemed to have been approved by the Management Board that (i) continues ordinary
operating  expenses  at the same level as the prior  Fiscal  Year's  AOPB,  (ii)
continues  any capital  expenditures  provided  for such Fiscal Year in the then
current Five Year Business Plan or that have otherwise been previously committed
to with  the  requisite  approval  of the  Management  Board,  (iii)  makes  any
additional  provision  necessary  for the  satisfaction  of all  obligations  or
liabilities  of the Newco  Group that will become due in  accordance  with their
terms  during such Fiscal Year in order to prevent any member of the Newco Group
from  defaulting  thereunder,  but in any event  excluding  any  obligations  or
liabilities of the Newco Group that require a decision of the  Management  Board
under Section 3.5(i), and (iv) permits the incurrence of additional Indebtedness
by Newco Group without recourse to or guarantees by the parents; provided, that,
such additional  Indebtedness  shall not cause the Leverage Ratio to be exceeded
(such AOPB, a "Provisional AOPB").

     (b) If no funding  commitment has been made with respect to the Fiscal Year
as to which a  proposed  AOPB  has not been  approved  and the  deadlock  arises
because the Management Board did not approve a proposed funding commitment, then
Thistle BV shall fund the  operations of the Newco Group to the extent  required
under  the  Provisional  AOPB  with  funds  derived  in the  following  order of
priority:  (x) first,  with funds  generated from operations of the Newco Group,
subject to the  provisions  of  Schedule  6.9,  (y)  second,  with  non-recourse
Indebtedness of the type described in Section  6.3(a)(iv),  and (z) third,  with
funds  provided  by the  shareholders  on a pro rata basis in the form of equity
cash  contributions or shareholder  loans, which shall, as to both shareholders,
be equal in amount, form and terms.

     (c) Notwithstanding the foregoing, the CEO may only implement a Provisional
AOPB for a maximum period of three consecutive Fiscal Years.

     6.4 Debt Financing.

     (a) Subject to the approvals  required under Sections 3.3(e) and 3.5(a) and
except as permitted by Section 6.3(b), the Newco Group may incur Indebtedness to
fund its operations  taking into account such  considerations  as the Management
Board deems relevant;  provided,  that, after taking into account the incurrence
of such  Indebtedness  the ratio (the "Leverage  Ratio") of (i) the consolidated
total  Indebtedness  of the Newco Group to (ii) the  consolidated  EBITDA of the
Newco  Group,  calculated  on the basis of the most recent four fiscal  quarters
shall not exceed 1.5:1; provided,  however, that such consolidated EBITDA of the
Newco  Group for any period  prior to the  conclusion  of the first four  fiscal
quarters of the Newco Group shall be deemed to be $1.6 billion.

     (b) Any debt  financing  of the Newco  Group  shall be without  recourse to
either or both  parents or their  Group  Companies,  unless VLT and BT  Holdings
decide otherwise pursuant to Section 3.3(e).

     6.5 Fiscal  Year.  The fiscal year of the Newco Group  ("Fiscal  Year") for
financial accounting and United States Tax purposes shall begin on January 1 and
end on December  31;  provided,  that,  the first Fiscal Year shall begin on the
Closing Date and end on the next following December 31.

<PAGE>

     6.6 Books and Records; Access and Information.

     (a) Thistle BV shall keep, or cause the Newco  Subsidiaries to keep,  books
and  records of the type  typically  maintained  by  Persons  engaged in similar
businesses  and which set forth a true,  accurate  and  complete  account of the
business and affairs of the Newco Group,  including a fair  presentation  of all
income, expenditures,  assets and liabilities thereof of each Business Unit. The
books and records of the Newco  Group  shall be kept in Dollars.  Such books and
records  shall  include  all  information  reasonably  necessary  to permit  the
preparation of  consolidated  financial  statements and Tax Returns  required by
Applicable  Law as  provided  in Annex 3  (including  Tax Returns to be filed by
members  of the AT&T  group of  companies  or BT  group  of  companies  on which
information pertaining to the Newco Group must be reported) and, with respect to
financial  statements,  in accordance with U.S. GAAP.  Thistle BV shall bear the
cost of providing  financial and accounting  information  reasonably required by
each  parent in the  preparation  of such  parent's  own  financial  statements,
including the cost of preparing any reconciliation statements to U.K. GAAP.

     (b) Each of the AT&T  Parties  and the BT Parties  and their  auditors  and
other  representatives  shall be  entitled  to,  and shall  upon  request by the
relevant party be supplied with:

     (i) full access (including copying facilities),  at reasonable times and on
reasonable notice, to the separate books, records, accounts, regulatory filings,
documents,  Tax Returns,  premises,  processes,  systems,  business  activities,
management  and auditors of the Newco  Group,  whether in  connection  with such
party's own internal audit of the Newco Group or otherwise; and
 
     (ii) all information,  including  monthly  management  accounts,  operating
statistics,  details of tax payments and other trading and financial information
(including the  information  described in Section 6.7), in such form and at such
times as such party may  reasonably  require to keep it properly  informed about
the  business  and  affairs of the Newco Group and to fulfill  such  party's own
group reporting requirements. 6.7 Financial Statements.
                  
     (a) After the Closing, Thistle BV shall furnish to the AT&T Parties and the
BT Parties:

     (i) As soon as  practicable  and in any event  within three  Business  Days
following the end of each month, a consolidated balance sheet of the Newco Group
as at the end of such month and the related  statements of income and cash flows
of the Newco Group for such month,  together with such other  information as the
parties shall agree  relating to the revenues,  expenditures  and  operations of
each Business Unit (the "Business Unit Information") for such month.

     (ii) As soon as  practicable  and in any event within three  Business  Days
following the end of each fiscal quarter of the Newco Group,  (1) a consolidated
balance  sheet of the Newco Group as at the end of such  fiscal  quarter and the
related statements of income and cash flows of the Newco Group for such quarter,
prepared in accordance  with U.S. GAAP, with  reconciliation  statements to U.K.
GAAP,  which shall be  furnished no later than 10 days after the delivery of the
aforementioned quarterly financial statements, (2) the Business Unit Information
for such quarter,  and (3) financial  statements  reasonably requested by either
parent for each legal entity within the Newco Group for such period.

<PAGE>

     (iii) As soon as  practicable  and in any  event  within 15  Business  Days
following  the end of each  Fiscal  Year,  (1)  consolidated  and  consolidating
balance  sheets of the Newco Group,  as of the end of such Fiscal Year,  and the
related  consolidated and  consolidating  statements of income and cash flows of
the Newco Group for such Fiscal Year,  prepared in  accordance  with U.S.  GAAP,
with  reconciliation  statements to U.K. GAAP, together with a report thereon of
the Independent Auditor, (2) the Business Unit Information for such Fiscal Year,
and (3)  financial  statements  reasonably  requested by either  parent for each
legal entity within the Newco Group for such Fiscal Year.

     (iv) As soon as  practicable,  such other  financial  information as either
parent shall  reasonably  require to satisfy its  financial  reporting and other
public,  statutory and regulatory  disclosure  requirements  or as either parent
shall reasonably request.

     (v) Such information as either parent shall  reasonably  require to satisfy
its Tax reporting requirements.

     (b) The AT&T  Parties  and the BT Parties  shall  cause  Thistle BV and the
other  members of the Newco Group to, and Thistle BV shall,  and shall cause the
other  members of the Newco Group to,  prepare all  statutory  accounts that are
required under  Applicable  Law in accordance  with the GAAP required under such
Applicable Law, and to furnish copies of such statutory  accounts to each of the
AT&T Parties and the BT Parties promptly following their completion.

     6.8  Auditors.   Prior  to  the  Closing  Date,  Thistle  BV  shall  engage
PricewaterhouseCoopers to be the initial independent auditor of the Newco Group,
unless  either of the parents  objects,  in which case  another  internationally
recognized  firm of  independent  certified  public  accountants  of outstanding
reputation  that is mutually  acceptable  to the parents will be appointed to be
Newco  Group=s  initial   independent   auditor  (the  "Independent   Auditor").
Thereafter, from time to time, the Independent Auditors may be replaced pursuant
to a decision  of the  shareholders  of Thistle BV in  accordance  with  Section
3.3(j).  The  Independent  Auditor  shall  in all  cases  be an  internationally
recognized  firm of  independent  certified  public  accountants  of outstanding
reputation.

     6.9 Dividend  Policy.  Unless the shareholders of Thistle BV by a unanimous
vote  determine  otherwise,  the  shareholders  shall  declare  the  payment  of
dividends  or other  distributions  of the Newco  Group in  accordance  with the
policy set forth in Schedule 6.9.

     6.10 Dutch  Residency.  The AT&T  Parties  and the BT Parties  shall  cause
Thistle BV,  DirectorCo and Newco Services Company to take all actions as may be
necessary or desirable to establish  tax  residency for Thistle BV solely in The
Netherlands.

     6.11  Hedging,  Etc.  The Newco Group will adopt  policies on currency  and
interest  rate  hedging,  risk  management,  and  insurance  with respect to the
operations of the Newco Group that will be mutually satisfactory to the parents.
The parents will adopt  policies  from time to time on the capital  structure of
the Newco Group.

<PAGE>

                                    ARTICLE 7
                         MNC UNIT; OUTSOURCING SERVICES

     7.1 Sales to Qualifying MNC Customers.

     (a) Subject to then  existing  legal and  contractual  obligations  and the
provisions  of Section 7.3 with  respect to  Outsourcing  Services and except as
contemplated by Section 7.7 and Article 11, the MNC Newco  Subsidiaries will, as
among the parents and their Group  Companies  and the other members of the Newco
Group, be the exclusive  sales channel for the offer and sale of  Communications
Services to Qualifying MNC Customers.  The MNC Newco  Subsidiaries will contract
for  services  from the  Newco  Subsidiaries  that  engage in the  business  and
activities of the Product Unit and, in the case of Communications  Services in a
parent=s Home Country, the applicable parent and its Subsidiaries for Qualifying
MNC Customers on an integrated basis.

     (b) In the supply of services to Qualifying  MNC  Customers,  the MNC Newco
Subsidiaries  will  generally  operate as providers of the Newco Group=s  Global
Communications  Services  and, in  accordance  with the  applicable  Transaction
Agreements,  as resellers of all the Communications Services of the parents and,
in  the  case  of  Communications  Services  in a  parent's  Home  Country,  the
Subsidiaries  of such parent,  to Qualifying  MNC  Customers.  The parties shall
cause the MNC Newco  Subsidiaries to adopt  appropriate  executive  compensation
arrangements to ensure that the MNC Newco  Subsidiaries  appropriately  sell the
services  of the  parents  and such  Subsidiaries.  Schedule  7.1(b)  sets forth
principles  with respect to sales of  Communications  Services of the parents to
the MNC Newco Subsidiaries.

     7.2 Transfer of Contracts.

     (a) After the date of this Agreement, the parents will develop a transition
plan the  objective  of which  will be to  transfer  and assign  those  customer
contracts entered into by the parents or their  Subsidiaries with Qualifying MNC
Customers to the  applicable  MNC Newco  Subsidiary as of the Closing or as soon
thereafter as feasible with customer consent, other than (i) any portion thereof
relating to the  provision  of  Outsourcing  Professional  Services or any other
services  not  required to be supplied by the MNC Newco  Subsidiaries,  and (ii)
those customer  contracts held by AT&T or its Affiliates  with the customers set
forth on Schedule  7.2(a).  To the extent that a customer  contract cannot be so
transferred  or assigned to the applicable  MNC Newco  Subsidiary,  the relevant
parent or Subsidiary shall,  except as set forth in Section 7.2(c),  continue to
hold such contract (other than any portion thereof  relating to the provision of
Outsourcing  Professional  Services  or any other  services  not  required to be
supplied by the MNC Newco  Subsidiaries)  in accordance with Section 7.6 for the
economic benefit or risk of the applicable MNC Newco Subsidiary.

     (b)  Notwithstanding  the  provisions  of this Article 7, if the  objective
criteria for the MNC Newco  Subsidiaries to commence  servicing and marketing to
Qualifying  MNC Customers in the petroleum  sector as set forth in Schedule 1.1F
are not satisfied, the parents will use their Reasonable Best Efforts to rectify
or to cause the Newco Group to rectify any identified  deficiency  that may have
caused such criteria not to be satisfied.

<PAGE>

     (c) Any customer  listed in Schedule  7.2(c) will become a  Qualifying  MNC
Customer after a reasonable  transition period following the applicable date set
forth in such  Schedule.  Following the Closing,  commencing as of such date, to
the extent that any such customer contract when renewed or extended cannot be so
transferred  or assigned to the applicable  MNC Newco  Subsidiary,  the relevant
parent or Subsidiary shall continue to hold such contract as renewed or extended
(other  than any  portion  thereof  relating  to the  provision  of  Outsourcing
Professional  Services or any other  services not required to be supplied by the
MNC Newco  Subsidiaries) in accordance with Section 7.6 for the economic benefit
or risk of the  applicable  MNC  Newco  Subsidiary.  Prior  to such  renewal  or
extension,  any such customer  contract will be held for the economic benefit or
risk of the applicable parent or Subsidiary.

     7.3 Outsourcing Services.

     (a)  Subject to the terms and  conditions  of this  Section 7.3 and Section
11.12,  (i) each parent and its Group  Companies and, to the extent  provided in
Section 7.3(e), the applicable MNC Newco Subsidiary shall be entitled to market,
offer,  sell  and  provide   Outsourcing   Professional   Services  relating  to
Communications  Services,  and (ii) the applicable MNC Newco Subsidiary shall be
entitled  to  market,  offer,  sell and  provide  the  Outsourcing  Professional
Services offered by the parents and their Group Companies, third parties and, to
the  extent  provided  in  Section  7.3(e),  its  own  Outsourcing  Professional
Services.  The  provisions  of this Section 7.3 shall be subject to the existing
contractual obligations of the parents and their Group Companies,  including, in
the case of AT&T, its contracts with the customers set forth on Schedule 7.2(c).

     (b) Each parent and its Group Companies shall be entitled to market, offer,
sell and provide Managed Network Services  relating to  Communications  Services
provided  with  respect  to  networks  within  any one  country  within its Home
Territory.  The  applicable  MNC Newco  Subsidiary  shall be entitled to market,
offer,  sell and provide Managed Network  Services to customers who require such
services in two or more countries and, in the case of Managed  Network  Services
marketed,  offered,  sold and  provided to  Qualifying  MNC  Customers,  Managed
Network  Services  relating to  Communications  Services.  All  Managed  Network
Services  provided  by the  parents  and,  subject to Section  7.7,  their Group
Companies  to  Qualifying  MNC  Customers  will be  contracted  for  through the
applicable MNC Newco Subsidiary.

     (c) Each parent and its Group Companies will be the Newco Group's preferred
supplier  (as  described  in  Section   10.1(b))  with  respect  to  Outsourcing
Professional  Services  provided  within its Home Territory  subject to customer
consent. Subject to the provisions hereof relating to the MNC Newco Subsidiaries
in  Section  7.3(d),  when  the  parents  or,  subject  to  Section  7.7,  their
Subsidiaries provide Outsourcing Professional Services in connection with Global
Communications  Services,  they shall use the  Managed  Network  Services of the
applicable  MNC  Newco  Subsidiary  and  Thistle  BV will  cause  such MNC Newco
Subsidiary to make Managed  Network  Services  available to the parents and such
Subsidiaries.  Thistle BV shall consider from time to time  reasonable  requests
for waivers  for de minimis  exceptions  from the  provisions  of the  preceding
sentence.  However, if the Newco Group does not have the capability of providing
particular  Managed  Network  Services to a parent or any of such  Subsidiaries,
such parent or Subsidiary may itself provide such Managed Network  Services.  If

<PAGE>

and to the extent such particular Managed Network Services cannot be provided by
such parent or Subsidiary,  such parent shall,  and shall cause such  Subsidiary
to, use Reasonable  Best Efforts to procure such Managed  Network  Services from
third parties.  Thistle BV shall cause the applicable Newco Subsidiaries and the
CTO to use their  Reasonable  Best  Efforts to work with the  parents  and their
Group  Companies  to  facilitate  the  provision  of  seamless  Managed  Network
Services.

     (d) Whenever a parent or,  subject to Section 7.7, any of its  Subsidiaries
wishes to sell  Outsourcing  Professional  Services to Qualifying MNC Customers,
there shall be an integrated approach by the applicable MNC Newco Subsidiary and
such parent or Subsidiary to the relevant  Qualifying MNC Customer.  Such parent
shall or, subject to Section 7.7, shall cause such Subsidiary to, and Thistle BV
shall  cause the  members  of the  Newco  Group to,  comply  with the  following
procedures.  During the proposal  stage,  each of the applicable  parent or such
Subsidiary  and the applicable  MNC Newco  Subsidiary  will develop the proposal
related to its service and each shall prepare a separate  agreement.  They shall
jointly  deliver  the  proposals  and jointly  negotiate  all  agreements.  If a
Qualifying  MNC  Customer  desires a master  agreement  (a  "Master  Outsourcing
Agreement"),  the  applicable  MNC  Newco  Subsidiary  shall  hold  such  Master
Outsourcing  Agreement  (subject to customer  consent) but nothing  herein shall
authorize  such MNC Newco  Subsidiary  or any other member of the Newco Group to
apply any  incremental  charges or increase the bid amount to the  customers for
the Outsourcing Professional Services or otherwise obtain value beyond the value
provided  in  the  agreement  or  subcontract  with  the  parent  or  applicable
Subsidiary for the provision of such Outsourcing  Professional  Services. In any
such case, the applicable MNC Newco Subsidiary shall, subject to Section 7.3(e),
subcontract to the parent or such Subsidiary for such  Outsourcing  Professional
Services.  Each  such  subcontract  shall  provide  that  the  Person  providing
Outsourcing  Professional  Services or Managed Network Services will be entitled
to the revenue  related  thereto and that  revenues  related to the provision of
Communications Services will be allocated to the Person providing the applicable
Communications Service. Each such subcontract shall contain customary commercial
indemnity  provisions  pursuant to which each relevant Person will indemnify the
other with respect to the services provided by it.

     (e)  Thistle  BV will  cause the  applicable  MNC Newco  Subsidiary  to use
Reasonable  Best  Efforts  to  procure  Outsourcing   Professional  Services  on
commercially  competitive  terms from either parent or any of its  Subsidiaries.
However, if neither the parent nor any of its Subsidiaries has the capability to
provide particular Outsourcing Professional Services on commercially competitive
terms, Thistle BV will cause the applicable MNC Newco Subsidiary to provide such
particular  Outsourcing  Professional  Services.  If  and  to  the  extent  such
particular Outsourcing Professional Services cannot be provided by any MNC Newco
Subsidiary,  Thistle BV will cause the  applicable  MNC Newco  Subsidiary to use
Reasonable Best Efforts to procure such Outsourcing  Professional  Services from
third parties.

     7.4 Managed Network Services Facilities.

     (a) Except as provided in Section 7.4(b) and Section 7.7,  Managed  Network
Services  Facilities  predominantly  associated with the provision in accordance
with  Section  7.3(b) of Managed  Network  Services  for  Global  Communications
Services by members of the Newco Group shall be owned and  operated  exclusively
by members of the Newco  Group.  The Newco  Group  shall be  entitled to place a
Managed  Network  Services  Facility in a parent's  Home Country if such Managed
Network  Services  Facility is  predominantly  associated  with the provision of
Managed Network Services for Global Communications Services.

<PAGE>

     (b) The  parents  and their  Group  Companies  shall be entitled to own and
operate,  and shall not be required to  contribute  to the Newco Group,  Managed
Network  Services  Facilities  predominantly  associated  with the  provision of
Managed Network Services within a single country within their Home Territories.
           
     (c)  Schedule  7.4(c),  which will be agreed by the  parents on or prior to
April 30, 1999,  will set forth a transition  plan (i)  specifying the objective
criteria  that must be met  relating to  continued  servicing of AT&T's and BT's
customers before AT&T or BT, as relevant, will be required to contribute Managed
Network  Services  Facilities as described in Section  7.4(a) to the Newco Group
and (ii) the  principal  terms and  conditions  on which  such  Managed  Network
Services  Facilities  will be leased or  otherwise  made  available to the Newco
Group until such  contribution.  The parties  anticipate that such contributions
will be made to the Newco  Group on or before the six month  anniversary  of the
Closing.

     7.5 Account Management for Level 1 and Level 2 Customers.

     (a) With respect to Level 2 Customers the parties agree that:

     (i) Either AT&T or BT will assume overall account planning  leadership on a
global basis as determined by Thistle BV based on (1) the relative  strengths of
AT&T and BT within the account, and (2) where, on a geographic basis, the weight
of  implementation  lies,  in  each  case  unless  determined  otherwise  by the
customer.

     (ii) Each  parent  shall  and,  subject  to Section  7.7,  shall  cause its
Subsidiaries  that provide Global Business  Communications  Services in its Home
Country to, and Thistle BV shall cause the applicable Newco Subsidiary to, enter
into an applicable  Transaction Agreement in order to support direct contractual
relationships for Level 2 Customers.

     (b) With  respect  to Level 1  Customers  and  other  customers  (excluding
Qualifying  MNC Customers and Level 2  Customers),  each parent will  separately
conduct the Global  Business  Communication  Services sales  activities for such
customers and Thistle BV will cause the Newco Group to provide sales and product
support for such services.

     7.6 Existing Contracts.  To the extent any customer contract then in effect
and referred to in Section 7.2(a), 7.2(c) or 11.11(i) is held by a parent or its
Subsidiaries  for the  economic  benefit  or risk of the  applicable  MNC  Newco
Subsidiary,  such parent  shall,  or shall cause its  Subsidiary,  to the extent
permitted under such contracts,  to enter into a subcontract with the applicable
MNC Newco  Subsidiary  for the  provision of the  Communications  Services to be
performed by such parent or its  Subsidiary  under the customer  contract.  Such
subcontract  shall  reflect the pricing and risk  principles to be agreed by the
parents prior to the Closing as contemplated by Section 18.8(f).

     7.7 Exceptions to Subsidiary  Obligations;  Term. The obligations set forth
in the second  sentence of Section 7.3(c) and in Sections 7.1,  7.3(b),  7.3(d),
7.4 and 7.5(a)(ii)  shall not apply to any Subsidiaries of a parent (a) that are
covered by an exception to such parent=s  obligations under the  Non-Competition
Undertakings,  or (b) with  respect  to which  such  parent  is  subject  to the
Fiduciary  Duty  Standard as provided in Section  11.2. A parent's and its Group
Companies'  obligations  under this Article 7 shall terminate when the parent is
no longer subject to Section 11.1.

<PAGE>

     7.8 Qualifying MNC Customers.

     (a) In principle, as soon as an MNC becomes a Qualifying MNC Customer, such
MNC's Subsidiaries shall be deemed to also be Qualifying MNC Customers, unless:

     (i) a  Subsidiary  of any such MNC requests  that the relevant  services be
provided to it separately from such MNC; or

     (ii) a parent demonstrates to the MNC Newco Subsidiaries that, prior to the
date of  this  Agreement,  separate  account  management  teams  of such  parent
serviced  such MNC and its  Subsidiary in question and, with respect to a Person
that  qualifies as a  Qualifying  MNC  Customer  after the Closing,  such parent
notifies the MNC Newco Subsidiary that such Subsidiary of such MNC should not be
treated as a Qualifying MNC Customer.

     (b) The parties agree that if separate account management teams serviced an
MNC and any of its  Subsidiaries  prior  to the  date  of this  Agreement,  such
Subsidiary may, subject to the terms and conditions hereof,  become a Qualifying
MNC Customer in its own right as soon as the industry sector to which it belongs
becomes a Selected Industry Sector, notwithstanding that the Person that is such
Subsidiary's  parent  belongs to a  different  industry  sector that has not yet
become  a  Selected  Industry  Sector  and  that  such  parent  is not  itself a
Qualifying MNC Customer.

     7.9  Customer  Choice.  AT&T,  BT and the MNC Unit  will  always  adhere to
customer  choice with respect to whether a Qualifying  MNC Customer is served by
the MNC Unit or as a Level 1 Customer  or Level 2  Customer.  Schedule  7.9 sets
forth certain principles regarding customer choice.

     7.10 MNC Unit.  Schedule 7.10 sets forth certain principles relating to the
MNC Unit.

                                    ARTICLE 8
                           APPOINTMENT OF DISTRIBUTORS

     8.1 AT&T's Home Territory.  In AT&T's Home Territory,  the appointment of a
Distributor of the Global  Business  Communications  Services of the Newco Group
shall require the approval of the Management Board, with DirectorCo, as the sole
director of the  Management  Board,  acting  pursuant to a majority  vote of the
Class A  Representatives  only,  with no other vote of any other  Representative
being required.

     8.2 BT's Home  Territory.  In BT's Home  Territory,  the  appointment  of a
Distributor of the Global  Business  Communications  Services of the Newco Group
shall require the approval of the Management Board, with DirectorCo, as the sole
director of the  Management  Board,  acting  pursuant to a majority  vote of the
Class B  Representatives  only,  with no other vote of any other  Representative
being required.

     8.3 Schedule 8.3 Countries. In the case of the countries listed on Schedule
8.3 attached  hereto,  the CEO shall be entitled to appoint a Distributor  on an
exclusive or non-exclusive  basis,  unless, in the case of a proposed  exclusive
Distributor,  the Management Board rejects such  appointment  pursuant to action
taken by  DirectorCo,  as the sole  director  of the  Management  Board,  acting
pursuant to a majority vote of each of the Class A Representatives and the Class
B Representatives.

<PAGE>

     8.4 Other RoW Countries. In the case of the countries in the RoW not listed
on  Schedule  8.3  attached  hereto,  the CEO  shall be  entitled  to  appoint a
Distributor on an exclusive or  non-exclusive  basis,  unless,  in the case of a
proposed  exclusive  Distributor,  the Management Board rejects such appointment
pursuant to action taken by  DirectorCo,  as the sole director of the Management
Board,  acting  pursuant to a majority  vote of the Class A  Representatives  or
Class B  Representatives  only,  with no other vote of any other  Representative
being required.

     8.5 Certain Countries.  In the case of the countries listed on Schedule 8.5
attached  hereto,  the CEO,  upon the  approval of the  Management  Board,  with
DirectorCo,  as the sole director of the Management Board,  acting pursuant to a
vote of a  majority  of each of the  Class  A  Representatives  and the  Class B
Representatives, shall establish a plan for the expansion of distributorships in
each such country,  which plan shall specify whether any proposed Distributor is
to be exclusive or non-exclusive.

                                    ARTICLE 9
                       SUPPLY OF NEWCO SERVICES TO PARENTS
                       AND DISTRIBUTION OF NEWCO PRODUCTS

     9.1 Basic Principles.
                  
     (a) A  parent  or the  applicable  Business  Unit  will be  deemed  to have
consistently and significantly underperformed if the criteria to be set forth in
Schedule  9.1(a),  to be agreed by the parents on or prior to the Closing  Date,
are not met.

     (b) The criteria referred to in Schedule 9.1(a) shall be designed to assure
the market  competitiveness of the Newco Group and the parents,  based on market
tests, including benchmarking of pricing, quality standards and features against
competitive offerings.

     (c) If either a Business  Unit or a parent  fails to meet the  criteria set
forth in Schedule 9.1(a):

     (i) in the first four Fiscal Years,  (1) either  parent,  through VLT or BT
Holdings, as the case may be, may cause Thistle BV to require the CEO to propose
to the Management  Board that the applicable  Newco Subsidiary or other Business
Unit  outsource  the  applicable  components of Global  Business  Communications
Services,  and  (2) the  CEO  may  propose  to the  Management  Board  that  the
underperforming  parent outsource the applicable  components of its Home Country
Communications  Services  for  sale to  Qualifying  MNC  Customers  to  ensure a
competitive  offering.   Such  decisions  shall  require  the  approval  of  the
Management Board, with DirectorCo, as the sole director of the Management Board,
acting  pursuant to a majority vote of each of the Class A  Representatives  and
the Class B Representatives; and

     (ii) after the end of the fourth Fiscal Year,  for as long as such Business
Unit  consistently  and  significantly  fails to meet the criteria  specified in
Schedule 9.1(b), either parent,  through VLT or BT Holdings, as the case may be,
may cause Thistle BV to require the applicable Newco Subsidiary to outsource the
applicable  components of Global Business  Communications  Services,  and for as
long as such parent  consistently and  significantly  fails to meet the criteria
specified in Schedule  9.1(b),  the applicable  Newco  Subsidiary shall have the
contractual right to require such parent to outsource the applicable  components
of  its  Home  Country  Communications  Services  for  sale  to  Qualifying  MNC
Customers.

<PAGE>

     9.2 Exclusive Purchasing Commitment.

     (a) Each parent will,  and will cause its  wholly-owned  Subsidiaries  and,
subject to the Fiduciary Duty Standard,  its other Subsidiaries to, purchase all
their  requirements  for Global  Communications  Services  from the Newco  Group
pursuant to the terms and conditions of the applicable Transaction Agreements to
be entered  into by each of the  parents as of the Closing  with the  applicable
Newco Subsidiary;  provided, however, that in the case of any customers that are
not  Qualifying  MNC  Customers,  each parent and its  Subsidiaries  may provide
directly the domestic portion of  Communications  Services  relating to its Home
Country provided to such customers;  and,  provided,  further,  however,  that a
parent's  obligations  under this  Section  9.2(a) shall not apply to any of its
Subsidiaries that is covered by an exception to such parent's  obligations under
the  Non-Competition  Undertakings  and, in the case of AT&T, shall not apply to
the activities  contemplated in Schedule 18.9. Each parent's  obligations  under
this Section  9.2(a) shall  terminate  when such parent is no longer  subject to
Section 11.1.
       
     (b) The applicable Newco  Subsidiary  will, at the Closing,  subject to all
legal and contractual  obligations existing at the Closing,  enter into separate
applicable  Transaction  Agreements with each parent,  pursuant to which it will
appoint the parents as its exclusive Distributors,  on a requirements basis, for
the sale of the Global  Business  Communications  Services of the Newco Group in
their Home Countries,  subject,  in AT&T's Home Country, to (i) the distribution
rights  of  MCI-WorldCom  for  the  two  year  period  set  forth  in  the  1994
distribution  agreement,  between  Concert and  MCI-WorldCom,  as amended by the
Unwind   Agreement  dated  August  7,  1998  (the   "MCI-WorldCom   Distribution
Agreement"),  plus the additional  three-year  period stated therein for the run
off of customer  contracts  that exist as of the end of such two-year  period or
earlier  termination of the MCI-WorldCom  Distribution  Agreement,  and (ii) the
transition  arrangements  for BT North  America Inc. to be set forth in Schedule
9.2(b), which Schedule will be agreed upon by the parents on or before April 30,
1999.
         
     9.3 International Carrier Services.

     (a) The Newco Group will  provide  (i)  International  Traffic  Termination
Services to the  parents and their  wholly  owned  Subsidiaries  pursuant to the
terms and conditions of the applicable  International Traffic Service Agreements
to be entered  into by each of them at the  Closing  with the  applicable  Newco
Subsidiary,  and (ii) Carrier  Services to third parties.  Each parent will, and
will cause its  wholly-owned  Subsidiaries  and,  subject to the Fiduciary  Duty
Standard,   other   Subsidiaries   to,  purchase  all  their   requirements  for
International  Traffic Termination  Services from the Newco Group. Each parent's
obligations  under this Section  9.3(a) shall  terminate  when such parent is no
longer subject to Section 11.1.
                  
     (b)  If a  Performance  Test  Shortfall  for  the  ICS  Unit  shall  occur,
notwithstanding  the provisions of Section 9.3(a) or 11.1(c),  at the end of the
sixth full Fiscal  Year,  the parent in respect of whose  routes the  applicable
Newco  Subsidiary  shall have failed to achieve the required  level of aggregate
annual  Accounting Rate reductions shall have the right,  following  delivery of
notice in writing to Thistle BV, the applicable Newco Subsidiary,  and the other

<PAGE>

parent,  to undertake  directly the negotiation of Accounting  Rates as follows.
Such parent may undertake  directly the negotiation of Accounting  Rates for all
or any of its routes in respect of which the applicable Newco Subsidiary  failed
by more than 5% to achieve the  budgeted net  Accounting  Rate for such route as
set forth in the relevant AOPB or Provisional AOPB for any year in the four full
Fiscal  Year period in which the  Performance  Test  Shortfall  for the ICS Unit
occurred.  In addition, if the applicable Newco Subsidiary shall have failed the
Performance Test Shortfall for the ICS Unit (determined on a per year basis) for
any two full Fiscal Years,  whether or not consecutive,  following the first two
full Fiscal Years,  the parent in respect of whose routes the  applicable  Newco
Subsidiary  shall have failed to achieve the required level of aggregate  annual
Accounting Rate reductions shall have the right, following delivery of notice in
writing to Thistle BV, the applicable Newco Subsidiary and the other parent,  to
undertake  directly the  negotiation  of Accounting  Rates for all or any of its
routes in respect of which the applicable Newco  Subsidiary  failed by more than
5% to achieve the  budgeted net  Accounting  Rate for such route as set forth in
the  relevant  AOPB or  Provisional  AOPB  for any  such  Fiscal  Year.  For the
avoidance of doubt, it is understood that,  notwithstanding  the foregoing,  the
Newco Group shall  retain the  ownership,  operation  and  management  of Global
Network  Facilities  for  the  provision  of  all  such  International   Traffic
Termination  Services;  provided,  however,  that the parent in respect of whose
routes the applicable Newco Subsidiary shall have failed to achieve the required
level of aggregate  annual  Accounting Rate  reductions  shall have the right to
solicit and hire employees of the applicable  Newco Subsidiary who are necessary
for the  negotiation  of Accounting  Rates for the routes in respect of which it
elects to undertake  directly the  negotiation  of Accounting  Rates;  provided,
further,  however,  that the solicitation and hiring of such employees shall not
unreasonably disrupt the operations of the International Carrier Services Unit.

                                   ARTICLE 10
                          SUPPLY OF SERVICES BY PARENTS
                               TO THE NEWCO GROUP
        
     10.1 Basic Principles.

     (a) The procurement of products, services and facilities by the Newco Group
from the parents and their wholly owned  Subsidiaries and, if applicable,  other
Subsidiaries  will be on arm's-length  commercial  terms at market rates.  There
will be no exclusive  purchasing  obligation  on the Newco Group with respect to
products,  services and facilities;  provided, however, that each parent and its
wholly-owned Subsidiaries and, if applicable, its other Subsidiaries will be the
preferred supplier of the Newco Group; provided,  further,  however,  subject to
Section 9.1, if any MNC Newco Subsidiary purchases  Communications Services in a
parent's Home Country, such MNC Newco Subsidiary shall exclusively purchase such
Communications Services from such parent or its wholly owned Subsidiaries or, if
applicable, its other Subsidiaries.
                  
     (b) For the purposes of this Agreement, the term "preferred supplier" shall
mean,  with  respect to a Person (the  "Preferred  Supplier")  that,  subject to
Applicable Law, is able to provide the products, services and facilities, as the
case may be, on terms,  conditions and standards at least as favorable regarding
price,  quality  and  service as the Person  that wishes to obtain the same (the
"Purchaser")  would be able to obtain in an arm's  length  transaction  with any

<PAGE>

third  Person  that  is not  an  Affiliate  of the  Purchaser  (a  "Third  Party
Supplier").  If a  Preferred  Supplier  offers  or is able to offer  to  provide
products,  services  or  facilities  that  are  competitive  and  comparable  as
described in the foregoing sentence, the Purchaser shall purchase such products,
services or facilities, as the case may be, from such Preferred Supplier and not
from a Third  Party  Supplier.  No  Purchaser  shall  provide to any Third Party
Supplier for the purpose of  facilitating  or promoting any  alternative  bid or
proposal (i) any confidential  information concerning the terms,  conditions and
standards of products,  services or  facilities,  as the case may be, offered by
the  Preferred  Supplier,  or  (ii)  any  preferential   commitments,   support,
incentives or other  preferential  treatment or inducements  with respect to the
supply or purchase of products,  services or facilities,  as the case may be, in
the applicable parent's Home Country.

     10.2 Support Services;  Secondment. The parties intend that the Newco Group
will  have its own  employees  and will not rely  unduly on  secondees  from the
parents.  None of the members of the Newco Group shall be obligated to accept or
use any resources such as systems,  personnel or facilities of the parents to be
used directly in connection with the Initial  Contributed  Assets.  Prior to the
Closing, the parents shall agree upon the services and facilities of the parents
to be used by the Newco Group,  if any, which  services and facilities  shall be
provided  by the  parents  pursuant  to  mutually  acceptable  support  services
agreements negotiated on an arm's-length basis.

                                   ARTICLE 11
                                 NON-COMPETITION

     11.1 Restricted Businesses. Subject to the other provisions of this Article
11 and  except  as  specifically  provided  herein,  including  pursuant  to the
agreements  contemplated by Section 18.8(h), each parent hereby agrees that from
and after the Closing for as long as this  Agreement  and the other  Transaction
Agreements remain in effect, it shall not, and it shall undertake to ensure that
none of its  Subsidiaries,  Affiliates or Covered  Investors or their respective
Subsidiaries  or  Affiliates  (all of the  foregoing,  collectively,  its "Group
Companies") shall, directly or indirectly,  acting alone or in association with,
or through, one or more Persons, other than through the Newco Group:

     (a) offer, sell or distribute any Global Business  Communications  Services
or any services  competitive  with the Global Business  Communications  Services
provided by the Newco Group  other than as  provided  in this  Agreement  or the
other Transaction Agreements;

     (b)  offer,  sell  or  distribute  to  any  Qualifying  MNC  Customers  any
Communications Services other than through the Newco Group;

     (c) provide any  International  Carrier  Services other than as provided in
any Transaction Agreements; or

     (d) own, operate, lease or manage any Global Network Facilities.

     11.2 Home Country Communications Services Business.

<PAGE>

     (a)  Notwithstanding the provisions of Section 11.1 and the second sentence
of  Section  11.6  (collectively,  the  "Non-Competition  Undertakings")  or  of
Sections 11.12 and 11.13, but subject to Section  11.7(b),  either parent or any
of its Group  Companies may engage in any  Acquisition  Transaction  or Business
Combination  predominantly  in  its  Home  Country  involving  any  Person  (the
"Specified Person"),  that would otherwise,  upon its consummation,  result in a
breach of the  Non-Competition  Undertakings  or Section  11.12 or 11.13 by such
parent or any of its Group  Companies,  including  as a result of the  direct or
indirect  activities  or  investments  of such  Specified  Person  or its  Group
Companies,  if: (i) such parent's primary purpose in engaging in the Acquisition
Transaction or Business Combination is to extend its Home Country Communications
Services  business,  (ii) the  business  of the  Specified  Person and its Group
Companies,  taken as a whole, is not predominantly  international,  and (iii) to
the extent the Specified Person and any Person in which the Specified Person has
a direct or indirect equity interest (each such Person, a "Specified  Entity" of
such  Specified  Person)  uses  Global  Business   Communications  Services  and
International Carrier Services or provides Communications Services to Qualifying
MNC Customers, such parent, subject to Section 11.2(b), uses its Special Efforts
to cause the  Specified  Person  and such  Specified  Entity  to use the  Global
Business Communications Services and International Carrier Services of the Newco
Group and to appoint the  applicable  MNC Newco  Subsidiary as a distributor  or
agent in the provision of Communications Services to Qualifying MNC Customers to
the extent such activities or investments of such Specified  Person or Specified
Entity would  otherwise  violate  Article 11.  "Special  Efforts" shall mean all
efforts  consistent  with a Person's  fiduciary  obligations.  The parties agree
that,   without   limiting  the  scope  of  the   foregoing   restriction,   and
notwithstanding   Applicable   Law  or  the  definition  of  "Best  Efforts"  or
"Reasonable Best Efforts," under no circumstances  shall Special Efforts require
the obligated Person to make any payment or assume special  obligations in order
to achieve the stated  objective.  For the avoidance of doubt, any references in
this  Section  11.2 to a parent  or any of its  Group  Companies  engaging  in a
Business  Combination not involving an Acquisition  Transaction shall not affect
or limit in any way the rights of the other parent,  if any, under Section 23.3,
23.4,  23.5 or 23.6 with respect to a Put,  Call or right to cause a dissolution
of the Newco Group and, in the case of a Business  Combination  not involving an
Acquisition  Transaction,  this  Section  11.2  shall  not be  given  effect  to
determine whether such rights are available.

     (b) To the extent such parent acquires,  directly or indirectly,  more than
50% of the equity  interests  in and Controls the  operations  of the  Specified
Person  or  acquires,  directly  or  indirectly,  more  than  50% of the  equity
interests  in and  Controls  the  operations  of any  Specified  Entity  of such
Specified  Person,  it will  direct the  Specified  Person's  or such  Specified
Entity's,  as the case  may be,  Global  Business  Communications  Services  and
International   Carrier  Services  businesses  and  the  business  of  providing
Communications  Services to Qualifying MNC  Customers,  in each case, if any, to
the Newco Group to the extent that the failure to do so would violate Article 11
(without giving effect to this Section 11.2);  provided,  that such parent shall
not be required to so direct any such businesses  unless it can do so consistent
with its fiduciary  duties,  which duties shall be determined within the context
of the Specified Person's and such Subsidiary's operations. Without limiting the
foregoing  proviso,  the  standard of  obligation  set forth  therein  shall not
require  such parent to take  commercially  unreasonable  actions or to make any
Person whole for what would otherwise be a breach of its fiduciary duties to the
Specified  Person  or  Subsidiary,  including  payment  to  compensate  for  the
premature termination of any contracts.  The standard of obligation set forth in
this  Section  11.2(b)  shall be  referred  to  herein  as the  "Fiduciary  Duty
Standard."

<PAGE>

     (c) Subject to the Fiduciary Duty  Standard,  such parent will refrain from
(i) taking actions that would significantly increase what, without giving effect
to this Section 11.2,  would be a breach of Section 11.1 by the Specified Person
and its  Subsidiaries,  and (ii)  transferring to the Specified Person or any of
its  Subsidiaries  from itself or any of its  Affiliates any business or assets,
unless in the case of clause (i) or (ii),  the primary  purpose of the action or
transfer  is a purpose  other  than to  circumvent  Section  11.1 or to grow the
portions  of such  businesses  that breach  Section  11.1.  Notwithstanding  the
preceding  sentence,  such  parent  may  take any  action  with  respect  to the
Specified Person and its Subsidiaries that has an independent  business purpose,
including  property  swaps,  geographical  consolidations  and transfers for the
purpose of achieving operating efficiencies or satisfying Tax objectives.

     (d) If the aggregate  annual  competing  revenues  referred to below of all
Specified  Persons and their  Subsidiaries  exceed $4 billion  plus 12.5% of the
excess, if any, of the Newco Group's aggregate annual revenues in the applicable
Fiscal Year over $20 billion,  then the other  parent  shall have the right,  by
notice to the acquiring parent within 30 days of its becoming aware thereof,  to
elect to cause a dissolution of the Newco Group.  The aggregate annual competing
revenues  referred to in the preceding  sentence  shall be and refer to revenues
calculated  on  a  Pro  Rata  Basis  derived  from  activities  which,   without
duplication,  would  violate  either or both of (i) Section  11.1 or (ii) in the
case of the other party's Home Territory other than its Home Country, clause (b)
of the second  sentence of Section  11.6, in each case if this Section 11.2 were
not applicable.  Any such dissolution  shall be completed as soon as practicable
but  in  any  event,  subject  to  compliance  with  mandatory  requirements  of
Applicable  Law,  within  two  years  following  the  date of such  notice.  The
provisions  of Section  23.9 shall  apply to a  dissolution  of the Newco  Group
initiated under this Section 11.2(d).

     11.3 BT in European  Region and AT&T in NAFTA Region.  Notwithstanding  the
provisions of Section 11.1,  neither parent nor any of its Group Companies shall
be in breach of Section  11.1 to the extent such breach  results from the direct
or  indirect  acquisition  or  ownership  by it or any of its  Group  Companies,
whether acting alone or in association with, or through, one or more Persons, of
the  following  interests  in any Person which  undertakes,  engages in, owns or
operates a business deriving revenues from activities that would violate Section
11.1 in the European  Region in the case of BT and its Group Companies or in the
NAFTA Region in the case of AT&T and its Group Companies:
                  
     (a) Any non-Controlling  interest  representing less than 20% of the equity
interests of such a Person,  subject to the Revenue  Limitation  with respect to
any breach of Section 11.1(a).

     (b) Any non-Controlling interest representing 20% or more and less than 50%
of the equity interests of such a Person, as long as BT or AT&T, as the case may
be, has made Reasonable Best Efforts to cause such Person to comply with Section
11.1,  but  subject  to the  Revenue  Limitation  with  respect to any breach of
Section 11.1(a).

     (c) Any Controlling interest in the equity of such a Person so long as such
Person does not violate Section 11.1(a).

<PAGE>

     11.4 Other Parent's Home Territory.

     (a)  Notwithstanding  the  provisions of Section 11.1 and clause (a) of the
second  sentence of Section 11.6,  neither parent nor any of its Group Companies
shall be in breach  thereof  to the extent  that such  breach  results  from the
direct or indirect acquisition or ownership by it or any of its Group Companies,
whether acting alone or in association with, or through, one or more Persons, of
any non-Controlling  interest representing less than 20% of the equity interests
of a Person which  undertakes,  engages in, owns or operates a business deriving
revenues from activities in the other party's Home Territory which would violate
Section 11.1 or clause (a) of the second  sentence of Section 11.6,  but subject
to the Revenue Limitation with respect to any breach of Section 11.1(a).
                  
     (b) For the purposes of Section  11.3(a) or (b) and this 11.4,  in no event
shall the aggregate  total annual revenues  derived in the two Home  Territories
from  Global  Business   Communications   Services  by  a  parent  and,  without
duplication,  its Group  Companies from all  activities  specified as subject to
restriction  pursuant to the terms  thereof  exceed $200 million  (the  "Revenue
Limitation");  provided,  that, no revenues attributed to a parent or any of its
Group Companies as a result of a transaction meeting the requirements of Section
11.2 shall be included in this  calculation.  For purposes of  calculating  such
aggregate total annual revenues, only the actual pro rata share of revenues of a
parent and,  without  duplication,  its Group  Companies  will be included  with
respect to any investments in a Person that is not wholly-owned.  Such method of
calculation shall be referred to herein as being made on a "Pro Rata Basis."

     11.5 RoW.

     (a)  Notwithstanding  the  provisions  of Section 11.1 or clause (a) of the
second sentence of Section 11.6, but subject to Section 11.5(c),  neither parent
nor any of its Group  Companies shall be in breach of Section 11.1 or clause (a)
of the second  sentence of Section  11.6 to the extent that such breach  results
from the direct or indirect  acquisition  or ownership by it or any of its Group
Companies of any equity interest of a Person which undertakes,  engages in, owns
or operates a business  deriving  revenues from activities in the RoW that would
violate  Section  11.1 or clause (a) of the  second  sentence  of Section  11.6;
provided, that, (i) with respect to any acquisition of a Controlling interest in
the  equity of any such  Person  that  derives  revenues  from  Global  Business
Communications Services in the RoW, the acquiring parent shall request the grant
of  distribution  rights for Global  Business  Communications  Services from the
applicable  Newco  Subsidiary on commercially  reasonable  terms for such Person
with respect to the  territories  in the RoW from which such Person derives such
revenues and prior to the  consummation of the acquisition of such interest such
Person  shall be  prepared  to enter into a  distribution  agreement  or similar
commercial arrangement,  including agency agreements,  with the applicable Newco
Subsidiary  on  commercially  reasonable  terms;  (ii)  in no  event  shall  the
aggregate  total annual  revenues  derived in the RoW by a parent and any of its
Group Companies, directly or indirectly,  whether acting alone or in association
with, or through one or more Persons,  from a cross border network,  alliance or
consortium in the RoW providing Global Business Communications Services (a "GBCS
Alliance") in which such parent or any of its Group  Companies has any direct or
indirect equity interest exceed $400 million determined on a Pro Rata Basis; and
(iii)  with  respect  to any  acquisitions  or  ownership  of a  non-Controlling
interest  in the  equity  of any  Person,  the  acquiring  parent  shall use its
Reasonable  Best Efforts to prevent such Person  from,  directly or  indirectly,
creating,  participating  in the  creation of or owning,  operating or having an
interest in any GBCS Alliance.

<PAGE>

     (b) If a parent requests on behalf of any Person which undertakes,  owns or
operates a business  deriving revenues from activities in the RoW in which it or
any of its Group Companies acquires an equity interest of 20% or more, or if any
such Person  requests  directly  from the Newco Group,  the right to  distribute
Global Business Communications Services on a non-exclusive basis in a particular
territory  within the RoW from which it derives such  revenues,  the Newco Group
will be required to use its Reasonable Best Efforts to grant such  non-exclusive
distribution rights to such Person on commercially reasonable terms, taking into
account the disruption,  if any, which may be caused to any existing  operations
of the Newco Group in the territory in question.

     (c) (i)  Notwithstanding  anything  to the  contrary  in  Section  11.5(a),
neither parent nor any of its Group Companies may directly or indirectly acquire
or own any interest in any Person which undertakes, engages in, owns or operates
a business deriving revenues from International  Carrier Services  activities in
RoW, unless such parent shall use its Special  Efforts to cause such Person,  to
the extent such Person provides International Carrier Services, to use the Newco
Group to provide such  International  Carrier Services;  provided,  that, to the
extent that a parent acquires more than 50% of the equity interests and Controls
such  Person,  such parent  shall  direct such  Person's  International  Carrier
Services  business to the Newco Group,  as long as it can do so consistent  with
the Fiduciary Duty Standard.

     (ii) Subject to the Fiduciary Duty Standard,  such parent will refrain from
(x) taking actions that would significantly increase the competition of any such
Person  with the Newco  Group with  respect to the  provision  of  International
Carrier  Services and (y)  transferring to any such Person from itself or any of
its Affiliates any business or assets,  unless in the case of clause (x) or (y),
the  primary  purpose  of the  action or  transfer  is a purpose  other  than to
circumvent  Section 11.1(c) or this Section 11.5(c) or to grow the International
Carrier Services  businesses of any such Person.  Notwithstanding  the preceding
sentence,  such parent may take any action with  respect to such Person that has
an  independent  business  purpose,   including  property  swaps,   geographical
consolidations and transfers for the purpose of achieving operating efficiencies
or satisfying Tax objectives.

     (iii) If the aggregate  annual revenues of all of such Persons,  calculated
on a Pro Rata  Basis,  derived in the RoW from the  provision  of  International
Carrier Services not provided by the Newco Group exceed $4 billion plus 12.5% of
the  excess,  if any,  of the Newco  Group's  aggregate  annual  revenues in the
applicable  Fiscal Year over $20  billion,  then the other parent shall have the
right,  by notice to the acquiring  parent within 30 days of its becoming  aware
thereof,  to  elect  to  cause  a  dissolution  of the  Newco  Group.  Any  such
dissolution  shall be completed as soon as  practicable  but in any event within
two years  following  the date of such notice.  The  provisions  of Section 23.9
shall apply to a  dissolution  of the Newco Group  initiated  under this Section
11.5(c)(iii).

     11.6 Ancillary  Non-Compete.  Since the Technology Unit will be engaging in
architectural design and since technology, know-how, other Intellectual Property
Rights and  confidential  information will be provided to, or developed by, for,
or in  conjunction  with,  the  Technology  Unit for use in connection  with the
Venture  Business,  each parent agrees in principle that as long as it, directly

<PAGE>

or indirectly,  owns a substantial interest in the Newco Group, it will not seek
to undermine  fundamentally  the technology  architecture of the Newco Group for
the Venture Business,  all as more specifically set forth in, and subject to the
terms of, the IPR Agreement. Accordingly,  consistent with the foregoing, except
as specifically provided herein, from the Closing, and so long as this Agreement
and the other Transaction  Agreements  remain in effect,  each parent shall not,
and shall undertake to ensure that none of its Group Companies  shall,  directly
or  indirectly,  acting alone or in  association  with, or through,  one or more
Persons,  or through Domestic  Network  Facilities in which any of the foregoing
has ownership or operation rights, (a) engage in any of the activities described
in Section 11.1 in the other parent's Home Territory (but in such event, subject
to the  exception  set forth in Section  11.4),  or (b)  compete  with the other
parent or any other  Distributor  of the Newco Group in the other  parent's Home
Territory as a distributor  of  Communications  Services of the type provided by
the Newco Group (subject to passive sales  requirements under Applicable Law) or
as a supplier  of  Communications  Services  of the type  supplied  by the Newco
Group.

     11.7 Exceptions to Ancillary Non-Compete and Other Non-Compete Provisions.

     (a)  Notwithstanding the provisions of clause (b) of the second sentence of
Section  11.6 and of  Sections  11.12 and  11.13,  either  parent  and its Group
Companies  may, in the other parent's Home  Territory,  make any investment in a
Person  which  breaches  clause (b) of the second  sentence  of Section  11.6 or
Section 11.12 or 11.13, so long as (i) such investment  represents less than 20%
of the equity  interests of such Person and the  investment or related series of
investments  made or  committed  in  connection  therewith  does not exceed $200
million;  provided,  that, the aggregate  initial value of all such  investments
does not  exceed $1  billion  in the  aggregate,  or (ii) the  aggregate  annual
revenues  derived by any such Person in the other  parent's Home  Territory from
any investment or related  series of investments  that violate clause (b) of the
second  sentence  of Section  11.6 or Section  11.12 or 11.13 do not exceed $200
million,  or taken together with all such other  investments,  $1 billion in the
aggregate.

     (b) If a parent or any of its Group  Companies  engages  in an  Acquisition
Transaction or Business  Combination  in its Home Country  involving a Specified
Person as  provided  in Section  11.2 and such  Specified  Person,  directly  or
indirectly,  has investments in or derives revenues from the other parent=s Home
Country that would breach  clause (b) of the second  sentence of Section 11.6 or
Section 11.12 or 11.13,  then such  investments and revenues shall be aggregated
with all other direct or indirect  investments in, or revenues  derived from, as
applicable,  the other parent=s Home Country that would breach clause (b) of the
second sentence of Section 11.6 or Section 11.12 or 11.13 in determining whether
the  limitations  set forth in clauses  (i) and (ii),  respectively,  of Section
11.7(a) are met.
         
     11.8  Exceptions  and  Restrictions  Applied  Independently.  The permitted
exceptions for breaches of the Non-Competition Undertakings apply independently.
If an investment in any Person breaches both one or more  subsections of Section
11.1 and one or more  subsections  of the second  sentence  of  Section  11.6 or
Section 11.12 or 11.13 and is entitled to a permitted  exception for a breach of
one or more  subsections  of one  Section  and not the  others,  such  permitted

<PAGE>

exception  will not  excuse  the  breach of such  other  subsections.  Unless an
applicable  permitted  exception  can be relied upon to excuse such breach,  the
party in breach  must,  subject  to the terms and  conditions  hereof,  cure the
breach and bring  itself or the  relevant  other  Person  into  compliance.  The
permitted  exceptions  in Sections  11.3,  11.4,  11.5 and 11.7 apply and may be
utilized with respect to the revenues  derived from activities in the respective
territories  set forth in each  such  Section,  notwithstanding  the fact that a
single  Person  may derive  revenues  from  activities  in more than one of such
territories;  provided,  that any revenues  derived from activities in any other
territory must independently comply with Section 11.1 and the second sentence of
Section 11.6 and Sections 11.12 and 11.13.

     11.9  Determinations  of Revenue.  For the purposes of Section 11.3,  11.4,
11.5 and the  second  sentence  of  Section  11.6,  a Person  shall be deemed to
undertake,  engage  in, own or  operate a  business,  as the case may be, in any
territory  subject to such  Section in which it derives any  revenue  during the
last full  fiscal  year of such Person  prior to the time the  determination  is
made.

     11.10  Calculation  of  Damages;  Cure  Period;  Notice.  For  purposes  of
calculating  damages and similar  remedies,  the breach of any provision of this
Article 11 shall be deemed to have  commenced  upon the  occurrence of the event
resulting in the breach, notwithstanding that any applicable cure period may not
then have expired;  provided, that, if a breach of any provision of this Article
11 exists as of the Closing Date,  such breach shall be deemed to have commenced
as of the Closing Date. No parent shall be entitled to injunctive  relief or any
similar  remedy for any  breach of any  provision  of this  Article 11 until the
expiration of the one year period from the time the parent  seeking relief shall
have given notice to the other parent of the  occurrence of the event  resulting
in the breach (it being agreed that the  foregoing  period may run  concurrently
with any cure period set forth in this  Article  11).  Each parent shall use its
good  faith  efforts to notify the other  upon  actually  becoming  aware of any
events that would constitute a breach by the other parent of this Article 11.
         
     11.11  Exclusions.  The following  activities and Persons shall be excluded
from the application of the Non-Competition  Undertakings and Sections 11.12 and
11.13:
                  
     (a) Multimedia Content;

     (b) Broadcast Services;

     (c) Systems  Integration;  provided,  that the parents in their  respective
Home Territories and the Newco Group in the RoW shall be the preferred  supplier
of Communications Services and Outsourcing Services therefor;

     (d)  membership  in any  satellite  consortia  as of the  date  hereof  and
successor interests therein;

     (e) international roaming agreements;

     (f) all non-wholly-owned  equity or other non-wholly-owned  investments and
joint  ventures  held as of the date  hereof  and  those  for  which  definitive

<PAGE>

agreements  have been  concluded  as of the date  hereof  set forth on  Schedule
11.11(f)A in the case of AT&T and Schedule  11.11(f)B in the case of BT, as well
as all current and any future Subsidiaries of the joint ventures and investments
identified on Schedule  11.11(f)A  and Schedule  11.11(f)B (it being agreed that
such Schedule 11.11(f)A and Schedule 11.11(f)B may be amended or supplemented on
or  prior  to  December  31,  1998 to  reflect  errors  and  omissions,  if any,
reflecting non-wholly-owned equity or other non-wholly-owned investments held as
of the date hereof);
                  
     (g) all joint research and development  initiatives existing as of the date
hereof;

     (h) run off of customer  agreements existing at the time of the acquisition
of an interest in a Person that is a party thereto that were not entered into in
contemplation  of an investment in a parent's Home Country;  otherwise,  after a
one year period,  the economic benefit and risk of such agreements will be held,
in  accordance  with  Section  7.6,  for the  account  of the  applicable  Newco
Subsidiary;
                  
     (i) maintenance and operation of legacy systems;

     (j) the activities of AT&T listed on Schedule 18.9;

     (k) servicing of contracts for which consents are not obtained;

     (l) supporting but not selling other vendors' services;

     (m)  investments  made by employee  benefit  plans of either parent and its
Group Companies;

     (n)  investments  actually  made by AT&T or BT or any of  their  respective
Group  Companies in  conjunction  with the other parent or any of its Affiliates
with respect to any of the investment opportunities set forth in Schedule 26.1;

     (o) investments  actually made by the investment fund established  pursuant
to the Investment Fund Agreement in accordance with the terms thereof;

     (p) Satellite & Radio Services;

     (q) agreements of AT&T set forth in Schedule 7.2(c); and

     (r) AT&T's existing reseller agreements.
         
     11.12   Certain  Sales   Practices,   Outsourcing   Services,   Outsourcing
Professional Services; Resellers.

     (a) Nothing in this Article 11 shall prohibit the  activities  contemplated
by the last  sentence  of Section  2.1(a) or the  provision  of any  Outsourcing
Services to the extent expressly  permitted by Section 7.3;  provided,  however,
that,  in order to enhance the business of the Newco Group,  except as expressly
set forth in Section  7.3 and except as  permitted  in Section  11.7,  when such
parent is no longer  subject  to clause (b) of the  second  sentence  of Section
11.6,  neither parent nor any of its Group Companies will directly or indirectly
engage in any Outsourcing Professional Services principally targeted or provided
to businesses in the other parent's Home Territory.
         
<PAGE>

     (b) The provisions of Article 11 shall not apply to agreements  between the
parents or their  Affiliates  and  resellers,  so long as the  parents and their
Affiliates are not pursuing  reselling (i) for the express  purpose of marketing
to  Qualifying  MNC  Customers or (ii)  deliberately  to target  Qualifying  MNC
Customers.
         
     11.13  Non-Exclusive  Content Services.  Notwithstanding  the provisions of
this  Article 11,  either  parent and its Group  Companies  shall be entitled to
offer, sell or distribute  Non-Exclusive  Content Services;  provided,  however,
that,  in order to enhance the business of the Newco Group,  except as permitted
in Section  11.7,  unless such parent is no longer  subject to clause (b) of the
second  sentence of Section  11.6,  no parent or its Group  Companies may offer,
sell  or  distribute  Special  Content  Services  in  the  other  parent's  Home
Territory.

     11.14 Preexisting Non-Competition Obligations. Schedule 11.14A and Schedule
11.14B set forth the  non-competition  obligations by which BT or AT&T or any of
their  Group  Companies,  respectively,  is bound as of the date  hereof and the
activities  which,  if  engaged  in by  the  Newco  Group,  would  violate  such
non-competition  obligations.  The Newco  Group shall not  undertake  any of the
activities  set  forth on  Schedule  11.14A  or  Schedule  11.14B,  directly  or
indirectly, whether acting alone or in association with, or through, one or more
Persons,  without the prior  written  consent of the parent or the parent of the
Group Company that is subject to the non-competition obligation.

     11.15  Unintentional  Non-Conformance.   Notwithstanding  anything  to  the
contrary in this Article 11, neither parent nor any of its Group Companies shall
be in breach of its  undertakings  in this  Article 11 to the  extent  that such
breach shall result from the  activities  by a Person owned by any third Person,
if such parent owns less than 20% of the equity  interests  of such third Person
and such third  Person owns less than 20% of the equity  interests of the Person
engaging  in the  activities  that  would  otherwise  breach  this  Article  11;
provided,  that the aggregate  annual revenues of the applicable  parent derived
from all such activities,  calculated on a Pro Rata Basis,  shall not exceed $25
million.  11.16 Cost of Living Adjustment.  Each of the Dollar amounts set forth
in this  Article  11 shall be  increased  on and as of each  anniversary  of the
Closing Date by a percentage equal to the higher of (a) the percentage increase,
if any,  in the  Consumer  Price  Index for the  month in which  the  applicable
anniversary  occurs  compared to the Consumer Price Index for the month in which
the  Closing  occurs  or the  most  recent  preceding  anniversary  thereof,  as
applicable,  and (b) the percentage increase,  if any, in the Retail Price Index
for the month in which the applicable  anniversary occurs compared to the Retail
Price  Index  for the  month in which  the  Closing  occurs  or the most  recent
preceding anniversary thereof, as applicable.  "Consumer Price Index" shall mean
the Consumer Price Index for all Urban  Consumers  U.S. City Average,  All Items
(1982-84=100),  published by the Bureau of Labor Statistics of the United States
Department of Labor,  or any successor  index thereto,  appropriately  adjusted;
provided,  that, if there shall be no successor  index, a substitute  index with
respect to the United  States  shall be selected by the parents.  "Retail  Price
Index" shall mean the General Index of Retail Prices published by the Office for
National  Statistics of the U.K., or any successor index thereto,  appropriately
adjusted;  provided,  that, if there shall be no successor  index,  a substitute
index with respect to the U.K. shall be selected by the parents. Such adjustment
shall be  calculated by the  Independent  Auditor and reported to the parents no
later than 30 days  following  the date upon which the Consumer  Price Index and
Retail Price Index information for the latest applicable month is available.
        
<PAGE>

     11.17  Enforcement.  The parties  expressly agree and acknowledge that each
parent shall be entitled,  directly and on its own behalf, (a) to enforce any of
the  provisions  of this  Article 11 and to seek any  remedies  provided in this
Agreement,  or otherwise  available by law, for the violation of such provisions
both on behalf of itself and on behalf of  Thistle  BV, and (b) to claim its pro
rata  share of any harm to the Newco  Group  caused  by the  breach by the other
parent or its Group Companies of this Article 11,  notwithstanding that the harm
resulting  from any  such  breach  is only to the  Newco  Group  or the  Venture
Business,  and Thistle BV shall not be entitled to any duplicative  recovery for
the same breach.

     11.18 Farland.

     (a) For a period of two years  following  the Closing,  the  provisions  of
Article  11 shall not apply to (i) BT's  equity  interests  in Farland  B.V.,  a
Besloten Vennootschap organized under the law of The Netherlands ("Farland"), or
(ii) BT's indirect interest in any Assets or Subsidiaries of Farland.

     (b) On or prior to the second anniversary of the Closing,  BT will offer to
sell  to  Thistle  BV or  its  designee,  in one or  more  transactions,  and on
customary terms and conditions,  an aggregate of  approximately  30% of the then
outstanding  equity of Farland or the ultimate  parent of Farland (the  "Farland
Equity  Stake").  Any such decision by Thistle BV to purchase an equity interest
in Farland shall be made by the Class A Representatives only, with no other vote
of any other Representative being required.

     (c) If BT and  Thistle BV cannot  agree on the sale  price for the  Farland
Equity  Stake,  the sale price will be  determined by reference to the appraisal
procedures set forth in Annex 2.

     (d) Notwithstanding Section 11.18(b), from and after the second anniversary
of the Closing,  BT will own,  directly or indirectly,  not more than 25% of the
equity interests in Farland or the Farland Equity Stake.

                       ARTICLE 12 RESTRICTIONS ON TRANSFER

     12.1 General Prohibition.

     (a) After the Closing Date,  except as provided in Section 12.2, 12.3, 23.3
or 23.4,  (i) neither  the AT&T  Parties  nor the BT Parties  shall  directly or
indirectly  sell,  transfer,  assign,  charge,  mortgage,  hypothecate,  pledge,
encumber,  grant a security interest in, grant any right or option or create any
convertible,  exchangeable  or  derivative  security  with respect to, grant any
limited right  (beperkt  recht) with respect to, issue any  depositary  receipts
for, or otherwise dispose of (whether by operation of law or otherwise) (each, a
"Transfer") any of their shares or other equity  interests in Thistle BV (but in
the case of Thistle BV, subject to Section 12.3), DirectorCo, the Newco Services
Company or any of the Newco  Subsidiaries and, in the case of AT&T or BT, any of
its shares in VLT or BT  Holdings  (but in the case of BT  Holdings,  subject to
Section 12.3), respectively, or with respect to any of the foregoing, any rights
or interests therein or thereto or in the proceeds thereof,  and (ii) Thistle BV
shall not, and shall cause the other  members of the Newco Group not to, and VLT
and BT Holdings,  in their capacity as  shareholders  of Thistle BV, shall cause

<PAGE>

Thistle  BV and the other  members of the Newco  Group not to,  and the  parents
shall cause their  direct and  indirect  Subsidiaries  and  Affiliates  that are
shareholders or members of the Newco Subsidiaries not to, Transfer any shares or
other  equity  interests  in any  member  of the  Newco  Group or any  rights or
interests  therein  or thereto or in the  proceeds  thereof to any third  party;
provided,  however,  that notwithstanding the foregoing,  the provisions of this
Section 12.1 shall not prohibit  any Business  Combination  or Change of Control
involving,  or sale or other  Transfer  of,  any of the Voting  Securities  of a
parent.

     (b) Any attempt to Transfer any shares or other equity interests in Thistle
BV, DirectorCo,  the Newco Services Company,  the Newco Subsidiaries,  VLT or BT
Holdings  or any rights or  interests  therein  or  thereto  or in the  proceeds
thereof,  in violation of this Article 12 shall be null and void ab initio,  and
Thistle BV shall not, and the parties shall cause DirectorCo, the Newco Services
Company,  the  Newco  Subsidiaries,  VLT and BT  Holdings  not to,  register  or
recognize any such Transfer.

     12.2 Permitted Transfers.  Subject to Section 12.4, either parent may, with
the prior  written  consent  of the other  parent,  which  consent  shall not be
unreasonably withheld or delayed,  cause the shares or other equity interests in
VLT, BT Holdings,  Thistle BV, DirectorCo,  the Newco Services Company or any of
the Newco Subsidiaries held by it or one of its Subsidiaries or Affiliates to be
transferred  to a direct or indirect  wholly-owned  Subsidiary  of such  parent;
provided,  that, (i) the transferring parent confirms in writing that it remains
obligated to perform the obligations contemplated to be performed by it pursuant
to this Agreement and the other  Transaction  Agreements;  (ii) such  transferee
shall have  agreed in writing  to be bound by the terms and  conditions  of this
Agreement and, to the extent applicable, the other Transaction Agreements; (iii)
the Transfer  complies in all respects with the provisions of this Agreement and
the  applicable  Charter  Documents  or  constitutive  documents  of  the  Newco
Subsidiaries;   and  (iv)  the  transferee  shall  have  agreed  in  writing  to
re-Transfer such shares or equity interests in Thistle BV, DirectorCo, the Newco
Services Company or the Newco  Subsidiary to the  transferring  parent or one of
its other wholly-owned  Subsidiaries if it no longer qualifies as a wholly-owned
Subsidiary of the transferring parent.

     12.3 Transfer of BT Holdings and Thistle BV Shares.

     (a) The prohibition on the Transfer of any shares in BT Holdings or Thistle
BV shall apply for a period  commencing  on the  Closing  Date and ending on the
10th anniversary thereof.

     (b)  If,  on or  prior  to  the  10th  anniversary  of  the  Closing  Date,
Netherlands  counsel mutually  acceptable to the parents confirms to the parties
that an extension of the prohibition on the Transfer of shares in BT Holdings or
Thistle BV will not be enforceable  under  Netherlands laws, VLT and BT Holdings
may Transfer any or all of their direct shares in Thistle BV and BT may Transfer
any or all of its shares in BT Holdings;  provided, that, if any such party does
so Transfer any or all of its shares in Thistle BV or BT Holdings,  (i) it shall
be required  concurrently to Transfer all of its equity  interests in DirectorCo
to the other parent; (ii) the transferee may not be, or be a Group Company of, a
Major Competitor of the other parent;  (iii) the transferee shall have agreed in

<PAGE>

writing to be bound by the terms and  conditions of this  Agreement  and, to the
extent applicable,  the other Transaction  Agreements (as amended to reflect the
changes  described in clause (vi)); (iv) in the case of Thistle BV, the Transfer
complies in all respects with the  provisions of this  Agreement and the Thistle
BV Charter Documents;  (v) the provisions of Article 11 shall upon such Transfer
immediately  cease to have any force or effect with  respect to the other parent
and its Group  Companies;  (vi) the parties  shall amend this  Agreement and the
DirectorCo Charter Documents appropriately to reflect the change in ownership of
the equity interests in DirectorCo and changes in the governance provisions such
that the non-Transferring  parent shall have exclusive management and control of
DirectorCo  and in respect of all actions or decisions to be  undertaken or made
by DirectorCo as the sole director of the Management  Board; and (vii) the other
parent  shall be entitled to cause a  Distribution  of Netco,  in which case the
provisions  of  Schedule  13.2 shall apply (it being  understood  that the other
parent may or may not elect to do so).

     (c) If,  on or prior to the 10th  anniversary  of the  Closing  Date,  such
Netherlands  counsel confirms that the continued  prohibition on the Transfer of
shares in Thistle BV or BT Holdings will be enforceable  under  Netherlands law,
then following such 10th anniversary,  the prohibition on the Transfer of shares
in Thistle BV or BT  Holdings  shall be  extended  for the  maximum  period then
permitted under Netherlands law.  Thereafter,  the provisions of Section 12.3(b)
and this Section  12.3(c) shall apply again on or prior to the expiration of any
such period or periods of extension.

     12.4 Tax Consequences.  Notwithstanding  Section 12.2 or 12.3 and except as
provided in Section 12.6, no Transfer of any shares or equity  interests in VLT,
BT Holdings,  Thistle BV,  DirectorCo,  the Newco Services  Company or the Newco
Subsidiaries  or any rights or  interests  therein or thereto or in the proceeds
thereof  shall be made or  recognized if it would result in more than de minimis
adverse Tax consequences to either parent, any of its Affiliates or Thistle BV.

     12.5  Approval  of Share  Transfers.  Each of the AT&T  Parties  and the BT
Parties hereby waives the application of any of the provisions of the Thistle BV
Charter  Documents  which if enforced  would block or delay any  Transfer of the
shares of Thistle BV that is permitted or required to be made by this  Agreement
and agrees to vote all of its shares of Thistle BV in favor of the  approval  of
any such Transfer.

     12.6 Netco  Distribution.  For the avoidance of doubt,  the restrictions in
this Article 12 shall not apply to any Distribution of Netco pursuant to Section
12.3, 13.2(a), 14.3(c), 16.4(c), 23.2(d), 23.6(b) or 27.1(c).

                                   ARTICLE 13
                CONSEQUENCES OF INVESTMENT BY A MAJOR COMPETITOR

     13.1 Triggering Transaction. If any Person (together with its Subsidiaries,
Affiliates  and all  Persons  with whom it is acting as a Group) that is a Major
Competitor of AT&T or BT acquires, directly or indirectly,  beneficial ownership
of (a) 25% or more but less than 30% of the Outstanding  Company Common Stock or
the Outstanding Company Voting Securities of the other parent (referred to below
as the  "Investee")  and satisfies the Influence  Test, (b) 30% or more but less
than 45% of the  Outstanding  Company  Common Stock or the  Outstanding  Company

<PAGE>

Voting  Securities of the Investee,  regardless of whether the Influence Test is
met, or (c) 20% or more of the  Outstanding  Company Common Stock or Outstanding
Company Voting Securities of the Investee and the provisions of paragraph (d) of
the definition of "Influence Test" are met (with or without a Limitation), then,
effective upon the  consummation of the transaction in which the Person acquires
such Outstanding  Company Common Stock or Outstanding  Company Voting Securities
of the Investee (the "Triggering Transaction"), the following provisions of this
Article 13 shall apply.  Any Person who satisfies the  conditions of clause (a),
(b) or (c) of this  Section  13.1 shall be  referred to in this  Agreement  as a
"Triggering Person."

     13.2  Remedies.  Except as  otherwise  set forth in this  Article  13,  but
notwithstanding  anything else in this Agreement to the contrary,  the following
remedies will be available immediately if there is a Triggering Person:

     (a) The member of  DirectorCo  affiliated  with the  parent  other than the
Investee  (the  "Other  Parent")  shall be  entitled  to appoint  an  additional
Representative to the DirectorCo Board and the Other Parent shall have the right
to cause Thistle BV, to the extent permitted by Applicable Law, to distribute or
cause the  distribution of the equity  interests in Netco or the shareholders of
Netco, to the  shareholders of Thistle BV or their designees on a pro rata basis
(such transfer,  a "Distribution of Netco"), and the provisions of Schedule 13.2
shall apply with respect  thereto and any Taxes arising in connection  with such
Distribution  of Netco shall be borne by the Investee (it being  understood that
the Other Parent may elect none, either or both of such remedies);

     (b) The Other Parent shall have the right unilaterally to hire, appoint and
remove the CEO; and

     (c) The Other Parent  shall have the right to nominate  the CFO;  provided,
however,  that the appointment of the CFO shall continue to require the approval
of the Management Board in accordance with Section 3.5(b).

     13.3 Right to Cure.  Within the two year period  following  consummation of
the  Triggering  Transaction,  the  Investee  shall have the right to remedy the
situation  so that the  Triggering  Person  does not  meet the  share  ownership
thresholds  set forth in  Section  13.1  (unless  any  Person  shall  thereafter
nonetheless  independently satisfy the definition of "Triggering Person") either
(a) in the case of a Person who became a Triggering Person as a result of clause
(a) of Section 13.1, eliminating the conditions that cause the Influence Test to
be  satisfied,  (b) in the case of a Person who became a Triggering  Person as a
result of clause (b) of Section 13.1,  eliminating the conditions,  if any, that
cause the  Influence  Test to be  satisfied  and  causing the  ownership  of the
Outstanding Company Common Stock or the Outstanding Company Voting Securities of
the  Investee  to be less than 30%,  or (c) in the case of a Person who became a
Triggering  Person pursuant to clause (c) of Section 13.1, if the Influence Test
is met with a Limitation,  by eliminating the conditions, if any, that cause the
Influence  Test to be satisfied  and causing the  ownership  of the  Outstanding
Company  Common  Stock  or the  Outstanding  Company  Voting  Securities  of the
Investee  to be less than 20%.  In the case of a Person who became a  Triggering
Person  pursuant to clause (c) of Section 13.1, if the Influence Test is not met
with a Limitation, the Investee shall not have the right to remedy the situation
and  the  provisions  of  Section  13.2  shall  be in  effect  immediately  upon

<PAGE>

consummation of the Triggering Transaction.  In all other cases, if the Investee
remedies the situation to the reasonable  satisfaction of the Other Parent,  the
provisions  of  Section  13.2  shall no longer  apply such that (x) the right to
appoint an additional  Representative  to the DirectorCo  Board shall cease, and
(y) the rights of the Other Parent in Sections 13.2(b) and (c) shall terminate.

     13.4 Right to Cause  Dissolution of the Newco Group.  If the Investee shall
not have  remedied the situation as provided in Section 13.3 within the two year
period  following the  consummation of the Triggering  Transaction  (including a
Triggering Transaction in which the Influence Test is met with a Limitation), in
addition to the rights of the Other  Parent in Section  13.2,  the Other  Parent
shall have the right, exercisable by notice in writing to the Investee within 60
days following the expiration of the two year  cure-period,  to elect to cause a
dissolution of the Newco Group.  Such dissolution  shall be completed as soon as
practicable following such notice by the Other Parent, but in any event, subject
to compliance  with mandatory  requirements  of Applicable Law, within two years
following the date of such notice. The provisions of Section 23.9 shall apply to
a dissolution of the Newco Group initiated under this Section 13.4.

     13.5  Immediate  Right to Dissolve the Newco Group.  If a Person  becomes a
Triggering Person as a result of clause (c) of Section 13.1 and if the Influence
Test is not met with a  Limitation,  the  Other  Parent  shall  have the  right,
exercisable  by notice in writing to the Investee  within 60 days  following the
consummation of the Triggering  Transaction,  to elect to cause a dissolution of
the Newco Group.  Such  dissolution  shall be  completed as soon as  practicable
following  such  notice  by the  Other  Parent,  but in any  event,  subject  to
compliance  with  mandatory  requirements  of Applicable  Law,  within two years
following the date of such notice. The provisions of Section 23.9 shall apply to
a dissolution of the Newco Group initiated under this Section 13.5.

     13.6  Application of Remedies.  From the time a Person becomes a Triggering
Person and  throughout the period of the  dissolution  of the Newco Group,  if a
dissolution is elected, the provisions of Section 13.2 shall apply. If the Other
Parent  does not elect to cause a  dissolution  of the Newco  Group  within  the
period  when it has the right to do so, the  provisions  of  Section  13.2 shall
continue to apply.

     13.7 Other  Remedies.  The rights and remedies set forth in this Article 13
shall be in addition to, and not  exclusive  of, any other rights or remedies to
which the  Other  Parent  may be  entitled  if the  circumstances  creating  the
Triggering  Transaction  also give rise to  rights or  remedies  under any other
provision  of this  Agreement  (excluding,  other  than in the case of a Covered
Investor or a Change of Control, Article 11) or Applicable Law.

                                   ARTICLE 14
                              STANDSTILL PROVISIONS

     14.1 Standstill Restrictions. From the date of this Agreement until (x) the
second  anniversary  of the  date  of  termination  of this  Agreement,  (y) the
completion of the  dissolution of the Newco Group  pursuant to Section  11.2(d),
11.5(c)(iii),  13.4,  13.5,  23.2,  23.4,  23.5 or 23.7, or otherwise or (z) the
closing of any sale of the Put Shares or Call  Shares,  whichever  is the latest
(excluding  any such event that is incapable of  occurring),  the parents  shall
not, and shall cause their Affiliates  (excluding any employee benefit plan of a
parent or its related trust) not to:

<PAGE>

     (a) acquire,  publicly announce an intention to acquire,  publicly offer to
acquire or propose to the board of directors of the other parent to acquire,  or
agree to  acquire,  directly  or  indirectly,  by  purchase  or  otherwise,  any
beneficial  ownership  (within the meaning of Rule 13d-3  promulgated  under the
Exchange Act) of any  Outstanding  Company Common Stock or  Outstanding  Company
Voting Securities (in either case, the "Voting Securities") of the other parent,
or direct or indirect rights or options to acquire (through purchase,  exchange,
conversion or otherwise) any Voting Securities of the other parent,  except that
BT may,  directly  or  indirectly,  acquire up to  100,000  shares of the Voting
Securities of AT&T in order to achieve capital gains grouping between BT and one
or more U.K. resident Subsidiaries of Thistle BV;

     (b)  make,  or in any  way  participate,  directly  or  indirectly,  in any
"solicitation"  of "proxies"  (as such terms are defined in Rule 14a-1 under the
Exchange Act) to vote any Voting  Securities  of the other  parent,  initiate or
propose any  shareholder  proposal or  intentionally  induce any other Person to
initiate any shareholder proposal;

     (c) make any proposal,  whether  written or oral, to the board of directors
of the  other  parent,  or make  any  public  announcement  or  public  proposal
whatsoever,  with  respect to a merger or other  business  combination,  sale or
transfer  of  assets,  recapitalization,   liquidation  or  other  extraordinary
corporate transaction with the other parent or any other transaction which could
result in a Change of Control of such other parent, or intentionally  induce any
other Person to make any such proposal;

     (d) form,  join or in any way  participate  in a group with  respect to any
Voting Securities of the other parent;

     (e) otherwise act, alone or in concert with others,  intentionally  to seek
to exercise any influence over the management or board of directors of the other
parent,  excluding (i) any discussions  between or among  representatives of the
AT&T Parties, the BT Parties, Thistle BV or the Newco Group that properly relate
to the operation of the Newco Group or DirectorCo or the participation of VLT or
BT Holdings as shareholders in Thistle BV or the relevant  Affiliates of AT&T or
BT as  shareholders or members in DirectorCo,  Newco Services  Company or any of
the Newco  Subsidiaries as  contemplated  by the  Transaction  Agreements or any
other informal and non-coercive  discussions among members of senior management,
and (ii) statements made by a parent regarding the business or operations of the
other  parent  that were not made with a view to  seeking  Control  of the other
parent;

     (f) make a public request to the other parent (or its directors,  officers,
shareholders,  employees or agents) to amend,  waive or modify or not to enforce
any provisions of this Article 14;

     (g) take any action which is reasonably  likely to require the other parent
to make a public  announcement  regarding  the  possibility  of any  transaction
referred to in clause (c) above or similar transaction; or

     (h) publicly disclose any intention,  plan or arrangement inconsistent with
any of the foregoing clauses (a) through (g).

<PAGE>

     14.2 Release of Standstill.

     (a) If any third  party (i)  makes any offer to the board of  directors  or
shareholders  of either parent to acquire or has acquired more than 10% but less
than 45% of the Voting Securities of such parent (the "target parent"), and such
third party is financially  capable of completing such acquisition or (ii) makes
an  offer to the  board  of  directors  of  either  parent  with  respect  to an
Acquisition  Proposal (as defined  below)  involving  the target parent (for the
avoidance of doubt,  excluding  any open market  purchases of 10% or less of the
Voting  Securities  of a Person  or the  issuance  by  either  parent  of Voting
Securities in connection with the acquisition of a business or assets), and such
third party is financially  capable of completing the acquisition of such Voting
Securities,  (x) in the case of clause (i),  the other  parent may make an offer
comparable  in scope to the third party offer to the target  parent,  and (y) in
the case of  clause  (ii),  the  other  parent  shall no  longer be bound by the
restrictions  set forth in Section  14.1 until such offer has been  withdrawn or
terminated,  in which case the restrictions of Section 14.1 shall be reinstated;
provided, however, that neither the board of directors nor the management of the
target  parent  shall be required  to accept the offer from the other  parent or
give such offer any  preference  over the third party offer or any other  offers
made by other third parties; and provided, further, however, that in the case of
clause (ii), the other parent, if it chooses to make an Acquisition Proposal for
the target parent during a period in which the  restrictions  of Section 14.1 do
not apply, will not make such Acquisition  Proposal for less than the percentage
of the Voting  Securities  of the target parent that is the subject of the third
party's Acquisition Proposal.

     (b) If either  AT&T or BT makes a public  announcement  that it has reached
agreement with a third party with respect to an Acquisition  Proposal or that it
is considering  alternatives including Acquisition Proposals from third parties,
the other parent may  thereafter  make an  Acquisition  Proposal to the board of
directors or shareholders of AT&T or BT, as the case may be, and shall no longer
be bound by the restrictions set forth in Section 14.1. For the purposes of this
Section, an "Acquisition  Proposal," with respect to any Person,  shall mean any
proposal  made by a  financially  capable  third party to effect (i) a Change of
Control  of such  Person,  (ii) a  Business  Combination,  or  (iii)  any  other
acquisition of 45% or more of such Person's Voting Securities.

     (c) If an event  specified in paragraph (b) of the  definition of Change of
Control  shall have  occurred,  the other parent shall no longer be bound by the
restrictions set forth in Section 14.1.

     14.3 Breach of Standstill Provisions.

     (a) If a parent  breaches its obligations in Section 14.1, the other parent
may bring a suit, action or proceeding  directly to the District Court to enjoin
such breach, and need not refer the matter to the Wise Counselor.

     (b) Each  parent  acknowledges  and agrees that the other  parent  would be
irreparably  damaged if it  breaches  its  obligations  in Section  14.1.  It is
accordingly  agreed  that the  non-breaching  parent,  in  addition to any other
remedy to which it may be  entitled  at law or equity,  shall be  entitled to an
injunction to prevent  breaches of Section 14.1 and to enforce  specifically the

<PAGE>

terms of this  Article and to seek a  substantial  award of  damages,  including
damages  resulting from the disruption of its business and interference with its
ongoing Governmental Approvals or Permits as a result of such breach.

     (c) Without limiting the foregoing, if a parent breaches its obligations in
Section 14.1, the  non-breaching  party may exercise any or all of the following
rights:

     (i) The  non-breaching  party shall have the right, by notice in writing to
the breaching party within 90 days after the occurrence of the breach,  to elect
to cause a dissolution of the Newco Group.  Such dissolution  shall be completed
as soon as practicable  following such notice by the non-breaching party, but in
any event, subject to compliance with mandatory  requirements of Applicable Law,
within two years  following the date of such notice.  Except as provided in this
Section 14.3(c),  the provisions of Section 23.9 shall apply to a dissolution of
the Newco Group initiated under this Section;

     (ii) The  provisions  of Article 11 shall be of no further  force or effect
with respect to the  non-breaching  party and its Group Companies from and after
the  occurrence  of the  breach.  The  provisions  of  Article 11 shall be of no
further  force or  effect  with  respect  to the  breaching  party and its Group
Companies from and after the completion of the dissolution of the Newco Group;

     (iii)  The  Affiliate  of the  non-breaching  party  that  is a  member  of
DirectorCo  shall be entitled  to appoint an  additional  Representative  to the
DirectorCo  Board  for a  period  of five  years  commencing  on the date of the
occurrence of the breach; and

     (iv) The  non-breaching  party shall be entitled to cause a Distribution of
Netco,  in which case,  the provisions of Schedule 13.2 shall apply with respect
thereto.  Any Taxes arising in connection with such  Distribution of Netco shall
be borne by the breaching party.

                                   ARTICLE 15
                   CONTRIBUTION OF ASSETS; ASSUMED LIABILITIES

     15.1 Initial Capital Contributions.

     (a)  Schedule  15.1A  and  Schedule  15.1B  identify  certain   businesses,
contracts  and  other  assets  to be  contributed  (collectively,  the  "Initial
Contributed  Assets") by the AT&T Sellers and the BT Sellers,  respectively,  to
Thistle BV and the Newco Subsidiaries on the Closing Date.

     (b) On the Closing Date, Thistle BV or a Newco Subsidiary will assume:

     (i) Liabilities  arising out of, relating to or resulting from the AT&T GCS
Business  from and after the Closing Date and any Excluded AT&T  Liabilities  to
the extent AT&T ceases to be liable to indemnify  Thistle BV in respect  thereof
as provided in Section 25.4(c)  (collectively,  the "Assumed AT&T Liabilities");
and

     (ii)  Liabilities  arising out of, relating to or resulting from the BT GCS
Business from and after the Closing Date, the Assumed Concert Purchase Debt, the

<PAGE>

Indebtedness  of Concert as  contemplated  by Section  15.7(a),  Liabilities  of
Concert  that are  reflected  in the  Concert  Financials  or that arise or have
arisen in the ordinary course of business from April 1, 1998 to the Closing Date
(but excluding any material  Liabilities  associated with material  Actions that
arise or occur prior to the Closing  Date),  and any Excluded BT  Liabilities to
the extent BT ceases to be liable to indemnify  Thistle BV in respect thereof as
provided in Section 25.4(d)  (collectively,  the "Assumed BT  Liabilities,"  and
together with the Assumed AT&T Liabilities, the "Assumed Liabilities").

     (c) To  effectuate  the  transfer  of the  Initial  Contributed  Assets and
assumption  of the  Assumed  Liabilities,  in each case as updated  pursuant  to
Section 15.1(d),  Thistle BV and each parent shall, and shall cause its relevant
Affiliates to, at the Closing,  (i) in the case of the AT&T Sellers,  enter into
the Asset Contribution Agreement (AT&T), and (ii) in the case of the BT Sellers,
enter into the Asset Contribution Agreement (BT).

     (d) The schedules to the Asset  Contribution  Agreements  shall be based on
Schedule 15.1A and Schedule 15.1B attached  hereto but shall, on or prior to the
Closing Date, be updated to (i) reflect changes to specific businesses or assets
as a  result  of  dispositions,  capital  expenditures  and  other  transactions
permitted in this Agreement and  corresponding  changes in the Liabilities to be
transferred or assumed in connection  therewith and to reflect  whether the AT&T
Assets or the BT Assets,  as the case may be,  will be  contributed  directly or
through  Contributed AT&T  Subsidiaries or Contributed BT  Subsidiaries,  as the
case may be and (ii) include  contracts with customers (but not with  additional
Qualifying  MNC  Customers)  which  are in  effect  on the date  hereof  and the
revenues  for which  were  included  in the  preparation  of the  business  plan
previously  agreed by the  parents.  No later than 10 days prior to the  Closing
Date,  each parent  shall  provide to the other parent for its review an updated
schedule of the assets and  Liabilities  to be contributed by it at the Closing.
The parents  shall  endeavor to resolve by the  Closing  Date any  disagreements
between them relating to the updated schedules.
                  
     (e) The parties agree that no assets will be transferred  from any employee
benefit plan or trust of either  parent or its  Affiliates  to any member of the
Newco Group or any benefit plan or trust of any member of the Newco Group.

     15.2 Management Board Valuation;  Accountants'  Statement.  At the Closing,
the AT&T Parties and the BT Parties shall cause  DirectorCo,  in its capacity as
the sole director of Thistle BV, to prepare a description of the AT&T Assets and
the BT Assets  complying with the  requirements  of Book 2, article 204a, of the
Dutch  Civil  Code  (the  "Management  Board  Valuation"),  setting  forth (i) a
description  of the AT&T  Assets  and the BT  Assets,  (ii) the total  valuation
assigned  to the AT&T Assets and the BT Assets and (iii) the  method(s)  used in
arriving at such valuation.  The parents shall use their Reasonable Best Efforts
to obtain at the  Closing  a  statement  of  PricewaterhouseCoopers  or  another
qualified  accounting  firm  acceptable  to  the  parents,  complying  with  the
requirements of Book 2, article 204b, of the Dutch Civil Code (the "Accountants=
Statement")  to the effect that the value of the AT&T Assets and BT Assets is at
least equal to the  aggregate par value of the shares of Thistle BV to be issued
at the Closing in  consideration  for the contribution of the AT&T Assets and BT
Assets.  At the Closing,  Thistle BV=s capital  surplus  (agio) account shall be
credited  with an  amount  equal to the  amount  by which  the value of the AT&T
Assets and BT Assets as set forth in the Management Board Valuation  exceeds the
aggregate  par value of the shares of Thistle BV issued in exchange for the AT&T
Assets and the BT Assets.

<PAGE>

     15.3 Transfers.

     (a) At the Closing,  upon the terms and subject to the conditions set forth
herein and in the Asset Contribution Agreement to which it is a party:

     (i) AT&T shall,  and shall cause the other AT&T  Sellers to,  transfer  the
Assets to be  contributed  by them as set forth in  Schedule  15.1A,  as updated
pursuant to Section  15.1(d) (the "AT&T  Assets")  and the share  capital in any
Contributed  AT&T  Subsidiary  to be  contributed  by them,  as of the  Closing,
subject to Section  15.3(d),  free and clear of all Liens consisting of pledges,
mortgages,  security interests, claims, leases or voluntary liens, to Thistle BV
and the relevant Newco Subsidiaries;

     (ii) BT shall, and shall cause the other BT Sellers to, transfer the Assets
to be contributed by them as set forth in Schedule 15.1B, as updated pursuant to
Section  15.1(d) (the "BT  Assets"),  the share  capital in any  Contributed  BT
Subsidiary  to be  contributed  by them and the  Assets  of the  Contributed  BT
Subsidiaries  to be, as of the  Closing,  subject to Section  15.3(e),  free and
clear of all Liens consisting of pledges, mortgages, security interests, claims,
leases or voluntary liens,  other than, in the case of Concert,  the Liabilities
described in clauses (i), (ii) and (iii) of paragraph  (c) of the  definition of
"Excluded BT  Liabilities,"  to Thistle BV and the relevant Newco  Subsidiaries;
and

     (iii)  Thistle  BV or the  relevant  Newco  Subsidiaries  shall  assume the
Assumed Liabilities.

     (b) In  addition  to the Assets set forth on  Schedule  15.1A and  Schedule
15.1B,  each parent  will,  or will cause its  Subsidiaries  to,  contribute  to
Thistle BV or the  relevant  Newco  Subsidiary  all  personal  property  that is
exclusively used in the AT&T GCS Business and BT GCS Business, respectively.

     (c) To the  extent  that  ownership  of the AT&T  Assets  and BT  Assets or
assumption  of the Assumed  Liabilities  by Thistle BV would cause Thistle BV to
cease to be a Qualified  Holding Company,  Thistle BV shall at the Closing cause
such AT&T Assets and the BT Assets and Assumed  Liabilities to be transferred to
or assumed by one or more of the Newco Subsidiaries; provided, however, that the
foregoing  shall not limit or alter any  obligation  of Thistle BV  pursuant  to
Article 25.
                  
     (d)  Thistle  BV shall use its  commercially  reasonable  efforts  to cause
itself or one of the Newco  Subsidiaries  to be  substituted in all respects for
AT&T or any of AT&T's  Affiliates  (except the  Contributed  AT&T  Subsidiaries)
under, and shall use its commercially  reasonable  efforts to cause AT&T and any
such Affiliates to be released and fully discharged from, any Liability relating
to,  arising  out of or  resulting  from any and all Assumed  AT&T  Liabilities,
including  all  Liabilities  of  AT&T  or  any  such  Affiliate  (x)  under  any
Contributed  AT&T  Contract  and (y) under  each of the  guarantees,  letters of
credit, letters of comfort, bid bonds, performance bonds and similar obligations
obtained or issued by AT&T or any such  Affiliate  for the benefit of any of the
Contributed  AT&T  Subsidiaries  or otherwise  relating to the AT&T GCS Business
(all of the foregoing, the "AT&T Guarantees").

<PAGE>

     (e)  Thistle  BV shall use its  commercially  reasonable  efforts  to cause
itself or one of the Newco Subsidiaries to be substituted in all respects for BT
or any of BT's Affiliates  (except the Contributed BT  Subsidiaries)  under, and
shall  use  its  commercially  reasonable  efforts  to  cause  BT and  any  such
Affiliates to be released and fully discharged from, any Liability  relating to,
arising out of or resulting from any and all Assumed BT  Liabilities,  including
all  Liabilities  of BT or any such  Affiliate  (x)  under  any  Contributed  BT
Contract  and (y) under each of the  guarantees,  letters of credit,  letters of
comfort, bid bonds, performance bonds and similar obligations obtained or issued
by BT or any  such  Affiliate  for  the  benefit  of any of the  Contributed  BT
Subsidiaries  or  otherwise  relating  to  the BT GCS  Business,  including  the
guarantees,  letters of credit, letters of comfort, bid bonds, performance bonds
and other  obligations  set forth on  Schedule  15.3(e)  (all of the  foregoing,
whether or not on such Schedule, the "BT Guarantees").
                  
     (f) In principle,  share capital of the Contributed  AT&T  Subsidiaries and
the  Contributed  BT  Subsidiaries,  the AT&T  Assets  and the BT Assets and the
Assets of the  Contributed  BT  Subsidiaries  shall be  contributed to the Newco
Group free and clear of all Liens  consisting  of pledges,  mortgages,  security
interests, claims, leases or voluntary liens other than, in the case of Concert,
the Liabilities described in clauses (i), (ii) and (iii) of paragraph (c) of the
definition of "Excluded BT  Liabilities."  Notwithstanding  the  foregoing,  if,
during the process of updating  Schedule 15.1A and Schedule 15.1B as provided in
Section  15.1(d),  an Asset may be  contributed  to the Newco Group subject to a
Lien consisting of pledges,  mortgages,  security interests,  claims,  leases or
voluntary  liens,  the party that is  contributing  such Asset shall also make a
cash  contribution  to Thistle BV in an amount  determined  by the  contributing
party using its best good faith  judgment to be the value or amount of such Lien
or, if Thistle BV is contributing  such Asset, it may, at its option,  forgive a
portion of the  outstanding  Assumed  Concert  Purchase  Debt.  Any such capital
contribution  shall be made by wire  transfer  of same day funds on the  Closing
Date.  The amount of such cash  capital  contribution  shall be  credited to the
capital surplus (agio) account of Thistle BV.

     (g) As of the Closing, (i) AT&T shall eliminate,  either by cancellation or
settlement as it shall  determine,  net intercompany  receivables,  payables and
loans existing between AT&T or any of its Affiliates (other than the Contributed
AT&T Subsidiaries),  on the one hand, and the Contributed AT&T Subsidiaries,  on
the  other  hand,  and  (ii) BT  shall  eliminate,  either  by  cancellation  or
settlement as it shall  determine,  net intercompany  receivables,  payables and
loans existing  between BT or any of its Affiliates  (other than the Contributed
BT Subsidiaries),  on the one hand, and the Contributed BT Subsidiaries,  on the
other hand.

     (h) At the Closing, with respect to prepaid expenses,  deferred revenue and
similar items relating to the AT&T GCS Business and BT GCS Business, each parent
and Thistle BV or the relevant Newco Subsidiary shall do a proration thereof for
the period prior to and  including  the Closing Date and for the period from and
after  the  Closing  Date.  The  amounts  thereof  for the  period  prior to and
including  the  Closing  Date  shall be for the  account  of the  parent  or its
relevant  Affiliate  and the  amounts  thereof for the period from and after the
Closing  Date  shall be for the  account of  Thistle  BV or the  relevant  Newco
Subsidiary.  Each  parent,  on the one hand,  and Thistle BV, on the other hand,
shall  cooperate  to make  appropriate  arrangements  to  effect  the  proration
described  herein and to ensure that  accounts  receivable  with  respect to the
pre-Closing period are for the account of each parent.
       
<PAGE>

     15.4 Minimum Contribution.

     (a) The parties agree that, on the Closing Date (i) AT&T shall be obligated
to contribute or cause to be contributed  Global Network  Facilities (other than
Managed  Network  Services  Facilities),  and  work-in-process  related  thereto
arising  from  money  invested  or  spent  but not  merely  committed  to  (such
work-in-process,  "WIP"),  with a net  book  value  of no less  than  an  amount
calculated  for  AT&T in  accordance  with  Schedule  15.4  (the  "AT&T  Minimum
Contribution")  and (ii) BT  shall be  obligated  to  contribute  or cause to be
contributed  Global  Network  Facilities  (other than Managed  Network  Services
Facilities)  and WIP with a net book value of no less than an amount  calculated
for BT in  accordance  with Schedule  15.4 (the "BT Minimum  Contribution")  (it
being  agreed  that the value of BT  IntermediateCo,  Concert  Holdings  and its
Subsidiaries  shall  not be  included  in the  determination  of the BT  Minimum
Contribution). The AT&T Minimum Contribution and the BT Minimum Contribution are
referred  to  as  the  "Minimum   Contributions"  and  individually  a  "Minimum
Contribution".

     (b)  On  the  Closing  Date,   the  parents   shall  jointly   instruct  an
internationally  recognized firm of independent  certified public accountants of
outstanding   reputation  that  is  mutually  acceptable  to  the  parents  (the
"Designated Accountants") to conduct a verification of the net book value of the
Global Network  Facilities (other than Managed Network Services  Facilities) and
WIP  constituting  a part of the BT Assets and the AT&T Assets as of the Closing
Date as listed  on  Schedule  15.1A and  Schedule  15.1B as such  Schedules  are
updated prior to the Closing Date in accordance  with Section  15.1(d).  For the
purposes of determining the net book values, the Designated  Accountants will be
instructed  to use,  in the case of the  applicable  BT Assets,  the  accounting
policies  and  practices  of BT used in  determining  the net book values of the
Global Network Facilities (other than those owned by BT IntermediateCo,  Concert
Holdings and their Subsidiaries) that are listed on Schedule 15.1B, which values
have been separately agreed to by the parents, and in the case of the applicable
AT&T Assets,  the accounting  policies and practices of AT&T used in determining
the net book values of the Global Network Facilities that are listed on Schedule
15.1A, which values have been separately agreed to by the parents,  in each case
as such accounting policies and practices are consistently  applied. The parents
shall jointly instruct the Designated Accountants to complete their verification
and issue their report  thereon  within 15 days following the Closing Date or as
soon  thereafter  as the  Designated  Accountants  can do so but in any event no
later  than 25 days  after  the  Closing  Date.  The  fees and  expenses  of the
Designated  Accountants  shall be borne equally by the parents.  The  Designated
Accountants  shall act as an expert and not as an  arbitrator.  Absent  manifest
error,  the net book values  determined by the Designated  Accountants  shall be
final and binding on the parents and the parents  expressly waive any right they
may have to seek judicial review of such determination on any ground.

     (c) If the Designated  Accountants determine and state in their report that
the  Contribution  of Global  Network  Facilities  (other than  Managed  Network
Services  Facilities) and WIP as listed on Schedule 15.1A and Schedule 15.1B, as
such  Schedules  are  updated to the Closing  Date in  accordance  with  Section
15.1(d) (i) by AT&T is less than the AT&T Minimum  Contribution or (ii) by BT is
less than the BT  Minimum  Contribution,  then  either  or both of the  relevant
parents,  as the case may be, shall be required to make up the shortfall between

<PAGE>

its Minimum Contribution and the net book value of its Global Network Facilities
(other than Managed Network Services Facilities) and WIP so determined by making
a cash capital  contribution  to Thistle BV (or, in the case of BT, by forgiving
all or a portion of the outstanding Assumed Concert Purchase Debt) in the amount
of such  shortfall.  Any such cash  capital  contribution  shall be made by wire
transfer of same day funds within five days after the delivery by the Designated
Accountants  of their report to each of the parties,  but in no event later than
30 days after the date of Contribution of the AT&T Assets and the BT Assets. The
amount  of such cash  capital  contribution  shall be  credited  to the  capital
surplus (agio) account of Thistle BV.

     15.5 Concert Shares.

     (a) Concert Holdings Ltd. ("Concert Holdings"),  a wholly-owned  Subsidiary
of BT, owns,  legally,  beneficially and of record, 100% of the share capital of
Concert and BT, through BT Holdings,  owns legally,  beneficially  and of record
100% of the share capital of Concert Holdings.  After the date of this Agreement
and prior to the Closing,  BT Holdings will form a wholly-owned  Subsidiary ("BT
IntermediateCo") to which it will contribute all of the share capital of Concert
Holdings, which will thereafter own legally,  beneficially and of record 100% of
the share  capital  of  Concert  Holdings.  At the  Closing,  BT  Holdings  will
contribute  the share capital in Concert to the Newco Group by  transferring  to
Thistle BV its equity interests in BT IntermediateCo,  which will thereafter own
legally,   beneficially   and  of  record  100%  of  the  share  capital  of  BT
IntermediateCo.

     (b) The  parents  acknowledge  that  prior to the  date of this  Agreement,
Concert  Holdings  acquired  from  MCI the  24.9%  equity  interest  in  Concert
previously  held by MCI (the  "Purchased  Shares") and that such purchase of the
Purchased  Shares has been financed by BT Holdings by debt with  interest  rates
and other  provisions on market  terms.  The amount of  Indebtedness  of Concert
Holdings incurred to fund the purchase of the Purchased Shares and to be assumed
by Thistle BV or any of the Newco  Subsidiaries  does not exceed $1 billion (the
"Assumed Concert Purchase Debt"). For the purposes of this Section 15.5, subject
to Section 15.5(c), the term "Cap" means $500 million.

     (c) Prior to the  Closing,  BT will  negotiate  with AT&T in good  faith to
purchase  for fair  market  value a package  of  assets  from AT&T or any of its
Affiliates  for an amount equal to the Cap.  Without being required to offer any
particular  assets to BT, AT&T will use its Reasonable  Best Efforts to offer to
BT a package of assets,  and negotiate in good faith with respect thereto,  with
the mutual  intention that the downward  adjustment in the Cap referred to below
in this Section 15.5(c) will not be necessary.  The assets to be offered by AT&T
will include assets located in Continental Europe, in North America, and in such
other locations as may be reasonably agreed by AT&T and BT; provided,  that, any
assets  located in the United  States to be offered by AT&T shall be selected by
AT&T in its  discretion.  If the parents  cannot  agree on the  valuation of the
assets being offered by AT&T to BT, either parent may, by written  notice to the
other,  require that the valuation be determined by an Appraiser pursuant to the
provisions of Annex 2. Any sale and purchase of assets  pursuant to this Section
15.5(c), shall be in accordance with terms and conditions mutually acceptable to
the parents and set forth in a  definitive  stock or asset  purchase  agreement,
which shall contain mutually acceptable  provisions  regarding the assumption of

<PAGE>

liabilities and mutually acceptable representations and warranties comparable in
nature and scope to those contained herein, which representations and warranties
shall not survive the closing of the transactions  contemplated  therein.  It is
the intention of AT&T and BT that such stock or asset purchase  agreement  shall
be executed on or before the Closing. The consummation of such sale and purchase
shall be as soon as  practicable  thereafter.  If (x) AT&T has complied with its
obligations  under this Section  15.5(c) and BT or its  designee  has  purchased
assets from AT&T pursuant to this Section 15.5(c) with a value less than the Cap
or (y) no definitive agreements for the sale and purchase of assets of AT&T with
a fair  market  value  equal to the Cap have been  entered  into or the sale and
purchase of such assets has not been consummated,  in either case on or prior to
the first anniversary of the Closing Date, then on such first anniversary of the
Closing Date the Cap will be adjusted downward Dollar-for-Dollar in AT&T's favor
to offset the difference  between the Cap and the value of the assets  purchased
and BT  Holdings  shall,  at its option,  make a cash  capital  contribution  to
Thistle BV or  forgive a portion of the  outstanding  Assumed  Concert  Purchase
Debt, in either case in an amount equal to two times such difference, subject to
the  provisions of the following  sentence.  The  requirement  that the sale and
purchase  of  AT&T  assets  be  consummated  by BT  on or  prior  to  the  first
anniversary  of the Closing  Date shall be  postponed by the same amount of time
involved,  but for no longer than one year thereafter,  in receiving  regulatory
approvals  if any  regulatory  approval  is not  received in a prompt and timely
manner and without  delay,  for any reason other than a failure by BT diligently
to pursue such regulatory  approvals in good faith (without any obligation on BT
to incur  more than de  minimis  cost or  compromise  any of its other  business
interests).  The  amount of any such cash  contribution  to  Thistle BV shall be
credited to the capital surplus (agio) account of Thistle BV.

     15.6  Non-Concert  Product  Contributions.  Within  30 days  following  the
Closing  Date,  each of AT&T and BT shall prepare a statement of profit and loss
showing the results  after tax for the  operation of their  Non-Concert  Product
Contributions  during the period from the date of this  Agreement to the Closing
Date.  The  applicable  tax rate for purposes of such  calculation  shall be the
effective tax rate of the relevant parent reflected in its financial  statements
for its most recently  completed  fiscal year. Such statements shall be prepared
in  accordance  with U.S.  GAAP in the case of AT&T and U.K. GAAP in the case of
BT, in each case consistently applied and consistent with the principles used in
the preparation of Schedule 15.6. If the profits after tax from the operation of
the Non-Concert  Product  Contributions  of either or both parents shall fail to
meet the forecasts of profit after tax set forth in Schedule 15.6, the parent or
parents whose Non-Concert Product  Contributions is deficient shall cause VLT or
BT  Holdings,  as the case may be, to  contribute  to  Thistle BV within 30 days
after the  completion of the statement of profit and loss, an additional  amount
in cash  equal to (or,  in the case of BT  Holdings,  BT  Holdings  may,  at its
option, forgive a portion of the outstanding Assumed Concert Purchase Debt in an
amount equal to) the difference  between the  forecasted  profit and loss of the
Non-Concert  Product  Contributions  and the  actual  profit  after  tax of such
businesses for such period.  Notwithstanding the foregoing, if a parent disputes
the statement of profit and loss of the other parent,  the parents shall jointly
instruct the Designated  Accountants or such other firm of independent certified
public  accountants  mutually  acceptable  to them to  confirm  and  verify  the
disputed  statement of profit and loss within 10 days of their  appointment,  in
which case the required  capital  contribution  (or, in the case of BT Holdings,
any forgiveness of any portion of the outstanding Assumed Concert Purchase Debt)
shall be made  within 30 days  after the  parents'  receipt of the report of the
Designated  Accountants  or such other  accounting  firm. The amount of any cash
contribution  to Thistle BV pursuant to this  Section  15.6 shall be credited to
the capital surplus (agio) account of Thistle BV.

<PAGE>

     15.7 Concert Funding.

     (a) The parents agree that,  from the date of this Agreement to the Closing
Date,  BT shall  cause  Concert  to be funded  by  incurring  Indebtedness  with
interest rates and other provisions on market terms.

     (b)  Within 30 days after the  Closing  Date,  Thistle  BV shall  cause the
Independent  Auditor to prepare a profit and loss  account  for  Concert for the
period from March 31,  1998 to the Closing  Date.  The  applicable  tax rate for
purposes  of such  calculation  shall  be the  effective  tax  rate  of  Concert
reflected in its financial  statements  for its most recently  completed  fiscal
year. If, based on such profit and loss account,  Concert has failed to meet the
forecasts of net after-tax  profits set forth in Schedule 15.7, BT Holdings will
within 30 days after its receipt of the profit and loss account  either (i) make
a capital contribution to Thistle BV in an amount equal to the shortfall between
the forecasted  net after-tax  profits set forth in Schedule 15.7 and the actual
net  after-tax  profits of Concert for the period  ending on the Closing Date or
(ii)  otherwise  appropriately  compensate  Thistle  BV  with  respect  to  such
shortfall in a manner mutually  acceptable to the parents.  Notwithstanding  the
foregoing, if either BT or AT&T disputes the profit and loss account for Concert
prepared by the  Independent  Auditor,  the parents shall  jointly  instruct the
Designated  Accountants  or such  other  firm of  independent  certified  public
accountants  mutually  acceptable  to them to confirm  and verify the profit and
loss  account  prepared  by the  Independent  Auditor  within  10 days of  their
appointment,  in which case BT Holdings shall make its capital  contribution  or
other mutually  acceptable  compensation within 30 days after its receipt of the
report of the Designated  Accountants or such other  accounting firm. The amount
of any such cash  contribution  to Thistle BV shall be  credited  to the capital
surplus (agio) account of Thistle BV.

     15.8 Liability for Transaction Gains Taxes. BT shall be responsible for any
BT  Transaction  Gains  Taxes  other  than  Excluded  Taxes,  and AT&T  shall be
responsible for any AT&T Transaction  Gains Taxes other than Excluded Taxes. The
parents shall cooperate with each other to minimize any Transaction  Gains Taxes
to the  extent  there  exists a means  of  minimizing  any such Tax  liabilities
without adversely affecting the other parent.

     15.9  Issuance  of  Shares.  At  the  Closing,  in  consideration  for  the
contribution by the BT Sellers and the AT&T Sellers to the Newco Group of the BT
Assets and the AT&T Assets, respectively,  Thistle BV shall, and shall cause the
applicable  Newco  Subsidiaries  (including  Concert  Holdings)  to,  issue  the
appropriate  number and class of shares or other equity interests to AT&T or one
of its Affiliates and BT or one of its Affiliates as identified on Schedule 2.2,
which in the case of shares of  Thistle  BV,  shall be  effected  pursuant  to a
notarial  deed of issuance  substantially  in the form of Exhibit L. If any such
shares  or  other  equity   interests  are  evidenced  by   certificates,   such
certificates  shall bear an appropriate  legend stating that the Transfer of the
shares or equity interests evidenced thereby is restricted under this Agreement.

     15.10  Waiver of  Preemptive  Rights.  Each of the AT&T  Parties and the BT
Parties hereby waives the applicability of any preemptive right (voorkeursrecht)
to which such party may be entitled  with  respect to any  issuance of shares of
Thistle BV required to be made pursuant to this Agreement.

<PAGE>

     15.11 United States Tax Treatment.  It is the intention of the parents that
Thistle BV and all Check the Box Entities shall be treated as partnerships,  and
all  Disregarded  Entities shall be treated as entities  disregarded  from their
owner,  for U.S.  federal  income tax purposes.  Accordingly,  the provisions of
Annex 3 are  intended,  among  other  things,  to  achieve  for the  parents  an
allocation of the profits and losses of the Newco Group for U.S.  federal income
tax purposes  consistent  with the  requirements  of the  provisions of the Code
applicable  to  partnerships.  Furthermore,  the  provisions of Annex 3 shall be
interpreted  in a manner  consistent  with the  requirements  of the  Code.  The
parties  agree that the  constitutive  documents  of each Check the Box  Entity,
other than Thistle BV, will contain provisions consistent with the provisions of
Annex 3 and the  requirements of the Code. For federal income tax purposes,  the
parties agree that the  adjustments  required by Sections 15.4,  15.5,  15.6 and
15.7 shall be made as of the Closing Date. Upon completion of the adjustments in
Sections 15.4,  15.5, 15.6 and 15.7, the parties agree that their  contributions
to the Newco Group will be of equal value.

     15.12 Concert Receivable.  BT agrees that disputes concerning  intercompany
receivables  existing  on the date  hereof  on the  Clover  Financials  shall be
resolved in Concert's favor.

                                   ARTICLE 16
                        ADDITIONAL CAPITAL CONTRIBUTIONS

     16.1  Future   Contributions  of  Managed  Network   Services   Facilities;
Contracts.

     (a) After  the  Closing,  the  parents  shall  contribute  Managed  Network
Services  Facilities  to the Newco  Group as  contemplated  by  Section  7.4(c).
Appropriate  Asset  Contribution   Agreements  shall  be  entered  into  by  the
applicable  parent or its  Affiliates  and Thistle BV. The parties agree that no
valuation shall be made of the Managed Network Services Facilities when they are
actually  contributed to the Newco Group.  In addition,  neither parent shall be
required to make any true-up payment in connection with such contributions.  The
provisions of Section  15.3(c) shall be  applicable,  mutatis  mutandis,  to any
contribution of the Managed Network Services Facilities pursuant to this Section
16.1(a).

     (b) After the Closing,  the parents shall contribute  customer contracts to
the MNC Newco Subsidiaries as contemplated by Section 7.2 and in accordance with
Schedule  16.1. For this purpose,  after the Closing,  the parents shall conduct
reviews of the status of the inclusion of additional  customers from  additional
Selected  Industry  Sectors on a quarterly  basis.  Schedule 16.1 sets forth the
timing of such contributions, the valuation thereof and the method of making the
true-up payments in respect thereof.

     16.2 Future Cash Capital Contributions.

     (a) On or after the Closing  Date,  subject to Section 3.5, the  Management
Board  may  require  each of VLT and BT  Holdings  to  make  additional  capital
contributions  to Thistle BV in such  amounts  and at such times as shall be set
forth in the relevant approved AOPB or, subject to Section 6.3(b), a Provisional
AOPB (a "Capital Call").

<PAGE>

     (b) All additional  capital  contributions  required to be made pursuant to
this Agreement shall, unless the Management Board decides otherwise,  be made in
Dollars  and  shall be made by way of  subscription  for  additional  shares  in
Thistle BV or in the form of shareholder  loans or loans from third parties,  as
determined by the Management Board in the AOPB or, if no such  determination has
been made,  as  determined  by the CEO. In the case of third party  loans,  such
loans may,  subject to Section 3.3(e),  involve recourse to the AT&T Parties and
the BT Parties.

     (c) Any  issuance  of shares of Thistle BV in  connection  with any Capital
Call shall be effected pursuant to a notarial deed of issuance  substantially in
the form of Exhibit L. The amount of any such capital  contribution in excess of
the  aggregate par value of the shares of Thistle BV issued in exchange for such
contribution  shall be credited to the capital surplus (agio) account of Thistle
BV.

     16.3 Notice of Capital Calls. If the Management  Board determines to make a
Capital  Call in  accordance  with  Section 3.5 or a Capital  Call is  otherwise
provided for in the relevant AOPB or Provisional AOPB,  Thistle BV shall send to
each of VLT and BT Holdings a written  notice of a Capital Call (a "Capital Call
Notice"),  which shall set forth,  among other things,  the amount of additional
capital  contributions  to be made by each of VLT and BT  Holdings,  the form of
such  contributions  and the date  (the  "Capital  Call  Date")  by  which  such
additional capital  contributions  shall be made. The Capital Call Date shall be
not less than 20 days  following  the date on which such  Capital Call Notice is
delivered.  Each of VLT and BT Holdings  shall be obligated to make its pro rata
share of such contributions.

     16.4 Failure to Make Additional Capital Contributions.

     (a) If VLT or BT Holdings  fails to fund a Capital  Call on or prior to the
Capital  Call Date,  (i)  Thistle BV shall  promptly  notify each parent of such
failure  (such  defaulting  shareholder,  a  "Defaulting  Shareholder"  and such
failure, a "Funding  Breach"),  and (ii) the amount funded by the non-defaulting
shareholder (the "Non-Defaulting Shareholder") shall ab initio be deemed to be a
loan,  with  interest and other  provisions  on market  terms,  and no shares of
Thistle BV will be issued with respect thereto. The Defaulting Shareholder shall
have 20 days from the date of delivery  of notice of the Funding  Breach to cure
delivering to Thistle BV the additional capital contribution  required under the
Capital  Call  Notice,  together  with  interest  thereon  calculated  at  LIBOR
applicable  on the Capital Call Date,  plus 4%, from and  including  the Capital
Call Date up to but excluding to the date of payment.

     (b) If a  Defaulting  Shareholder  shall  fail to  deliver  its  additional
capital  contribution,  together  with  interest  thereon as provided in Section
16.4(a),  within  the 20-day  cure  period,  then all  rights of the  Defaulting
Shareholder to receive  additional shares in Thistle BV pursuant to such Capital
Call,  if  applicable,  shall  cease  and,  for a period  of 60 days  after  the
expiration of the 20-day cure period, the Non-Defaulting  Shareholder shall have
the  option,  by  capital  contribution  or by  loan  with  interest  and  other
provisions  on  market  terms,  to  provide  all or any  part of the  Defaulting
Shareholder's  additional capital  contribution to Thistle BV without payment of
default interest.  If the Non-Defaulting  Shareholder  decides to provide all or

<PAGE>

any part of the Defaulting  Shareholder's additional capital contribution by way
of a capital contribution,  it shall have the right to receive additional shares
in Thistle BV in consideration  therefor.  If BT or any of its Affiliates is the
Non-Defaulting  Shareholder and decides to make such capital contribution by way
of a loan, it shall have the right at any time to convert the  principal  amount
of,  and  all  accrued  and  unpaid  interest  on,  such  loan  into  a  capital
contribution  to Thistle  BV, in  connection  with which it shall be entitled to
receive  additional  shares in Thistle  BV. The number of  additional  shares in
Thistle BV issuable to the  Non-Defaulting  Shareholder in connection  with such
converted  loan  shall  be  determined  based  on the  per  share  consideration
applicable to the Capital Call in question.

     (c) In addition to the provisions of Section  16.4(b),  if there has been a
Funding Breach, (i) the  Non-Defaulting  Shareholder (or its Affiliate that is a
member of DirectorCo) shall be entitled to appoint an additional  Representative
to the DirectorCo Board effective as of the expiration of the 20-day cure period
if the Funding  Breach has not been cured within such 20-day  period;  provided,
that, if the  Non-Defaulting  Shareholder  wishes to waive such right,  it shall
notify the other parties prior to the expiration of the 20-day cure period,  and
(ii) the parent of the Non-Defaulting  Shareholder shall have the right to cause
a  Distribution  of Netco,  in which case the  provisions of Schedule 13.2 shall
apply and the parent of the Defaulting  Shareholder shall bear any Taxes arising
in connection therewith (it being understood that the Non-Defaulting Shareholder
may elect none, either or both of such alternatives).

     (d)  If  a  Defaulting   Shareholder  fails  to  make  additional   capital
contributions with respect to three separate  consecutively  issued Capital Call
Notices,  it shall  be  deemed  to have  committed  a  material  breach  of this
Agreement as provided in Section  22.3(a),  and the  Non-Defaulting  Shareholder
shall have the rights specified in Section 23.4.

                                   ARTICLE 17
                         REPRESENTATIONS AND WARRANTIES

     17.1  Representations  and Warranties of AT&T. AT&T represents and warrants
to the BT Parties and Thistle BV as follows:

     (a)  Organization  and  Standing.  AT&T is a  corporation  duly  organized,
validly  existing and in good standing  under the laws of the State of New York,
and VLT is a corporation  duly organized,  validly existing and in good standing
under the laws of the State of Delaware,  and each has all  requisite  corporate
power and corporate  authority necessary to enable it to own, lease or otherwise
hold  its  properties  and  assets  and to carry on its  business  as  presently
conducted.  Each of the other AT&T Sellers and the Contributed AT&T Subsidiaries
is duly  organized  and validly  existing  and,  with  respect to those  Persons
organized under the laws of states of the United States, in good standing, under
the laws of the jurisdiction of its organization,  except for such failure to be
in good  standing  which  would not,  individually  or in the  aggregate  have a
Material  Adverse  Effect on the Venture  Business  taken as a whole (a "Venture
Business  Material  Adverse  Effect").  Each of the other AT&T  Sellers  and the
Contributed AT&T  Subsidiaries (i) has all requisite  corporate,  partnership or
limited  liability  company power and authority to own,  lease or otherwise hold
its properties  and assets and to carry on its business as presently  conducted,
and (ii) is duly qualified to transact  business in each  jurisdiction  in which
the nature of  property  owned or leased by it or the  conduct  of its  business
requires it to be so  qualified,  except for such  failure to be so qualified as
would not  individually  or in the aggregate  have a Venture  Business  Material
Adverse Effect.

<PAGE>

     (b)  Authorization;  Validity.  Each  of AT&T  and  VLT  has all  requisite
corporate  power and corporate  authority to execute and deliver this  Agreement
and the IPR Agreement,  to perform its obligations  hereunder and thereunder and
to consummate the transactions  contemplated  hereby and thereby.  Each of AT&T,
VLT and their  Affiliates  will have at the  Closing  all  requisite  corporate,
partnership  or limited  liability  company  power and  authority to execute and
deliver the  Transaction  Agreements  and the Local  Purchase  Agreements  to be
executed by it on or prior to the Closing, to perform its obligations under such
other Transaction  Agreements and the Local Purchase Agreements to which it is a
party and to consummate the transactions  contemplated  thereby.  The execution,
delivery and  performance  by each of AT&T and VLT of this Agreement and the IPR
Agreement,  and the  consummation  by each of AT&T  and VLT of the  transactions
contemplated  hereby and thereby,  have been duly  authorized  by all  necessary
corporate  action on the part of AT&T and VLT, and the  execution,  delivery and
performance  of each  of  AT&T,  VLT and  their  Affiliates  of the  Transaction
Agreements and the Local Purchase Agreements to be executed by it on or prior to
the Closing,  and the  consummation of the  transactions  contemplated  thereby,
will, prior to such execution and delivery,  be duly authorized by all necessary
corporate,  partnership or limited liability company action on the part of AT&T,
VLT or such Affiliates, and no other corporate, partnership or limited liability
company  proceedings  or  actions  on  the  part  of any of  AT&T,  VLT or  such
Affiliates, or their respective boards of directors or other governing bodies or
stockholders, partners or members are necessary therefor. This Agreement and the
IPR Agreement have been, and the  Transaction  Agreements and the Local Purchase
Agreements to be executed by AT&T,  VLT and their  Affiliates on or prior to the
Closing will,  when executed and  delivered,  be, duly executed and delivered by
AT&T, VLT and their  Affiliates,  as applicable.  Assuming the due execution and
delivery hereof and thereof by the other parties thereto, this Agreement and the
IPR Agreement  constitute,  and the other  Transaction  Agreements and the Local
Purchase  Agreements to be executed by AT&T, VLT or their Affiliates on or prior
to the Closing will, when duly executed and delivered,  constitute, legal, valid
and  binding  obligations  of AT&T,  VLT and such  Affiliates  that are  parties
thereto,  enforceable  against it or them in  accordance  with their  respective
terms.

     (c) No Conflicts.  Except as set forth on Schedule 17.1(c),  the execution,
delivery and  performance  by each of AT&T and VLT of this Agreement and the IPR
Agreement, the consummation of the transactions  contemplated hereby and thereby
and the compliance  with the terms hereof and thereof do not, and the execution,
delivery and performance by each of AT&T, VLT and their  Affiliates of the other
Transaction Agreements and the Local Purchase Agreements to be executed by it on
or prior to the Closing,  the consummation of the  transactions  contemplated by
such  Transaction  Agreements and such Local Purchase  Agreements and compliance
with the terms of such Transaction Agreements and such Local Purchase Agreements
will not at the Closing,  conflict  with, or constitute or result in any Default
under (i) any provision of the Restated  Certificate of  Incorporation or bylaws
of AT&T, the certificate of  incorporation  or bylaws of VLT or any provision of
the constitutive or equivalent documents of any such Affiliate,  (ii) any order,
arbitration award, judgment,  injunction or decree against, or binding upon, any
of AT&T, VLT or any such  Affiliate or upon its properties or businesses,  (iii)
any instrument, contract, mortgage, charge or other agreement to which AT&T, VLT
or any such Affiliate is a party or by which any of its Assets is bound, or (iv)
under any Applicable Law with respect to AT&T, VLT or any such Affiliates or any

<PAGE>

of their  respective  Assets  (except,  with respect to clauses (ii),  (iii) and
(iv),  for such conflicts or Defaults  that,  individually  or in the aggregate,
would not have a material  effect on the  ability  of AT&T,  VLT or any of their
Affiliates,  as applicable,  to perform in all material respects its obligations
under this  Agreement and the other  Transaction  Agreements  and Local Purchase
Agreements to which it is a party in accordance with their  respective terms and
would not have a Venture Business Material Adverse Effect).

     (d)  Consents and  Approvals.  Except as provided in Schedule  17.1(d),  no
Third Party Approval and no Governmental  Approval is required to be obtained or
made by AT&T, VLT or any of their  Affiliates in connection  with the execution,
delivery and performance of this Agreement and the other Transaction  Agreements
and the  transactions  contemplated  hereby and thereby,  except for Third Party
Approvals or Governmental  Approvals,  the absence of which,  individually or in
the aggregate,  would not have a material  effect on the ability of any of AT&T,
VLT or their Affiliates,  as applicable, to perform in all material respects its
obligations under this Agreement and the other  Transaction  Agreements to which
it is a party in  accordance  with their  respective  terms and would not have a
Venture Business Material Adverse Effect.

     (e) Litigation.

     (i) Except as set forth in  Schedule  17.1(e),  there  are,  as of the date
hereof, no Actions pending or, to the knowledge of AT&T, threatened against AT&T
or any of its  Affiliates  or any  property  of AT&T or of any  such  Affiliate,
including Intellectual Property Rights, in any court or before any arbitrator of
any kind or in or before or by any  Governmental  Body,  except  Actions  which,
individually  or in the  aggregate,  are not  reasonably  likely  to, (x) have a
material  adverse  effect on AT&T or VLT or (y)  restrain,  enjoin or  otherwise
prevent or materially delay the  consummation of the  transactions  contemplated
hereby or by any other Transaction Agreement,  in each case, except with respect
to Taxes which are the subject of separate representations and warranties.

     (ii) Schedule  17.1(e)  contains a list and brief  description  (other than
with  respect  to any Tax  matters)  as of the date  hereof  of (x) all  pending
Actions  against any of the AT&T Sellers  relating to their  conduct of the AT&T
GCS  Business  or against any of the  Contributed  AT&T  Subsidiaries  and which
individually  involve  an amount in excess of $10  million,  (y) all  threatened
Actions  against any of the AT&T Sellers  relating to their  conduct of the AT&T
GCS Business or against any of the Contributed AT&T  Subsidiaries,  in each case
of which AT&T has knowledge and which  individually  involve an amount in excess
of $10  million,  and (z) all writs,  injunctions,  orders,  and  decrees of any
Governmental  Bodies to which any of the AT&T  Sellers  is subject  relating  to
their  conduct of the AT&T GCS Business or against any of the  Contributed  AT&T
Subsidiaries, in each case which would, individually or in the aggregate, have a
Material  Adverse  Effect on the AT&T GCS  Business or on the  Contributed  AT&T
Subsidiaries taken as a whole (collectively, a "AT&T GCS Business MAE").

     (iii) Except as  disclosed  in Schedule  17.1(e) and except with respect to
Taxes and Environmental Laws (which are the subject of separate  representations
and  warranties),  there  are  no  Actions  pending  or,  to  AT&T's  knowledge,
threatened  against any AT&T Seller relating to the AT&T GCS Business or against
any Contributed AT&T Subsidiary that would individually or in the aggregate have

<PAGE>

an AT&T GCS Business MAE or prohibit the  Contribution of the AT&T Assets or the
transactions  contemplated hereby or by any other Transaction Agreement.  Except
as disclosed in Schedule 17.1(e),  there are no judgments or outstanding orders,
injunctions,  decrees,  stipulations or awards  (whether  rendered by a court or
administrative  agency,  or by arbitration)  against AT&T or any AT&T Seller and
relating  to the  AT&T GCS  Business  or  against  any of the  Contributed  AT&T
Subsidiaries  that  would  individually  or in the  aggregate  have an AT&T  GCS
Business MAE or that would prohibit the  Contribution  of the AT&T Assets or the
transactions contemplated hereby or by any other Transaction Agreement.

     (f) Brokers and Finders.  Except for the fees and expenses  payable to J.P.
Morgan & Co., which fees and expenses will be paid by AT&T,  none of AT&T or any
of its Affiliates has employed any investment banker, broker, finder, consultant
or  intermediary  in  connection  with  the  transactions  contemplated  by this
Agreement which would be entitled to any investment banking, brokerage, finder's
or similar  fee or  commission  in  connection  with this  Agreement,  any other
Transaction Agreement or the transactions contemplated hereby or thereby.

     (g) Contributed AT&T Subsidiaries.

     (i)  Schedule  17.1(g)  sets  forth  a  chart  describing   accurately  and
completely the  organizational  structure and ownership of the Contributed  AT&T
Subsidiaries and the authorized capitalization thereof.

     (ii) Except as disclosed in Schedule 17.1(g), all of the outstanding shares
of capital  stock or other equity  interests or other  securities of each of the
Contributed  AT&T  Subsidiaries has been, or if such Contributed AT&T Subsidiary
is not yet  organized  will, as of the Closing be,  validly  issued and is fully
paid and  nonassessable  and, except for directors'  qualifying shares and other
nominal share  interests  issued to third parties to comply with Applicable Law,
is owned by the AT&T Sellers or one or more of the Contributed AT&T Subsidiaries
and, as of the  Closing  will be owned by a member of the Newco  Group,  in each
case,  free and clear of all Liens  consisting of pledges,  mortgages,  security
interests, claims, leases or voluntary liens.

     (iii)  Except as disclosed in Schedule  17.1(g),  there are no  outstanding
options, warrants or other rights of any kind to acquire, securities convertible
into or  obligations  to issue or  transfer  any shares of capital  stock of any
class  of,  or  other  equity  interests  or  other  securities  of,  any of the
Contributed AT&T Subsidiaries.

     (h)  Financial  Statements.  AT&T has  heretofore  provided  to BT true and
complete  copies of unaudited  statements of operating  results  relating to the
historical  performance  of the  AT&T  GCS  Business  (the  "AT&T  GCS  Business
Financials").  The AT&T GCS  Business  Financials  are true and  correct  in all
material  respects,  were extracted  from and are consistent  with the books and
records used in the preparation of AT&T's audited  financial  statements for the
relevant  periods  covered by such  statements,  and were  prepared  in a manner
consistent with the accounting policies and practices of AT&T.

     (i) Undisclosed Liabilities; Adequacy of Assets.

<PAGE>

     (i) Except as  disclosed  in Schedule  17.1(i),  except for  Excluded  AT&T
Liabilities, and except as reflected, reserved against or otherwise disclosed in
the AT&T GCS Business  Financials or incurred or arising in the ordinary  course
of the AT&T GCS Business subsequent to July 31, 1998, the AT&T GCS Business does
not have any  Liabilities  that would be required to be  reflected on a combined
statement of net assets of the AT&T GCS Business if any such  statement  were to
be  prepared  in  accordance  with  U.S.  GAAP and that  would  have an AT&T GCS
Business MAE. No  Contributed  AT&T  Subsidiary  has any Liability  that did not
arise in the ordinary course of the AT&T GCS Business.

     (ii) The AT&T Assets constitute all of the material assets,  properties and
rights owned by any AT&T Seller or any Contributed  AT&T  Subsidiary  reasonably
necessary for the conduct of the AT&T GCS Business as it is currently conducted,
except (A) any of the foregoing  hereafter disposed of in the ordinary course of
business,  (B) for any  shared-use  or  multiparty  facilities  or  Assets,  (C)
otherwise contemplated by the Transaction Agreements,  and (D) as would not have
an AT&T GCS Business  MAE. To the  knowledge  of AT&T,  the AT&T Sellers and the
Contributed AT&T  Subsidiaries do not lack any Asset necessary for the continued
conduct of the AT&T GCS Business, as the same has heretofore been conducted, but
giving effect to the  transactions  contemplated by this Agreement and the other
Transaction  Agreements,  the absence of which  would have an AT&T GCS  Business
MAE. To the knowledge of AT&T,  no AT&T Assets and no Assets of any  Contributed
AT&T  Subsidiary are impaired in such a manner as would  individually  or in the
aggregate have an AT&T GCS Business MAE.

     (j) Properties.

     (i)  Schedule  15.1A  includes a complete  list of (A) all real  properties
owned by the AT&T  Sellers  and  included  in the  AT&T  Assets  or owned by the
Contributed AT&T  Subsidiaries  (the "AT&T Property  Assets"),  and (B) all real
properties leased by the AT&T Sellers of which the leasehold rights are included
in the  AT&T  Assets  and all  real  property  leased  by the  Contributed  AT&T
Subsidiaries and used by them in their conduct of the AT&T GCS Business, in each
case involving an annual rental of $10 million or more (the "AT&T Leases").

     (ii) An AT&T  Seller or one of the  Contributed  AT&T  Subsidiaries  is the
owner in fee  simple  of and has good  and  marketable  title to all of the AT&T
Property  Assets listed in Schedule  15.1A and,  except as set forth on Schedule
17.1(j),  all such  properties  are owned  free and  clear of any  Liens  except
Permitted Liens and except as would not have an AT&T GCS Business MAE.

     (iii) Except as set forth in Schedule  17.1(j),  each of the AT&T Leases is
valid and  enforceable  in  accordance  with its terms and is in full  force and
effect,  subject  to  applicable  Bankruptcy  Law or other laws  relating  to or
affecting  the  rights  and  remedies  of  creditors  generally  and to  general
principles  of equity  (regardless  of  whether  in equity or at law) and except
where the failure to be valid and  enforceable or in full force and effect would
not individually or in the aggregate have an AT&T GCS Business MAE.

     (iv)  To  the  knowledge  of  AT&T,  there  is  no  pending  or  threatened
condemnation,  expropriation, eminent domain or similar proceeding affecting all
or any  material  portion  of the  AT&T  Property  Assets,  and none of the AT&T
Sellers or the Contributed AT&T  Subsidiaries has received any written notice of
any of the same that would  individually  or in the  aggregate  have an AT&T GCS
Business MAE.

<PAGE>

     (v) Except as set forth in Schedule  17.1(j),  none of the AT&T  Sellers or
Contributed  AT&T  Subsidiaries  has  received  any notice in  writing  that any
Default exists under any of the material  covenants,  conditions,  restrictions,
rights of way or  easements,  if any,  affecting  all or any portion of the AT&T
Property  Assets which are to be performed or complied  with by the AT&T Sellers
or the  Contributed  AT&T  Subsidiaries as the owner of any of the AT&T Property
Assets,  except for such Defaults as would not  individually or in the aggregate
have an AT&T GCS Business MAE.

     (vi) All  components  of all  buildings,  structures,  fixtures  and  other
improvements  in, on or within the AT&T  Property  Assets and any real  property
that is the  subject of the AT&T Leases are in a state of  condition  and repair
which enables the relevant part of the AT&T GCS Business to be carried on in the
relevant  real  property,   subject  to  continued  repair  and  replacement  in
accordance  with past  practice  and  except  for any  failures  that  would not
individually or in the aggregate have an AT&T GCS Business MAE.

     (k)  Absence  of  Certain  Changes.  Except as  disclosed  herein or in the
Schedules to this Section 17.1 or as otherwise  permitted  under the Transaction
Agreements,  since July 31,  1998:  (i) there has been no change in the AT&T GCS
Business  which,  taken as a whole,  constitutes  an AT&T GCS Business MAE; (ii)
there has been no physical damage, destruction or loss to any AT&T Assets or any
Assets of any  Contributed  AT&T Subsidiary that would have an AT&T GCS Business
MAE; and (iii) neither an AT&T Seller nor a Contributed  AT&T Subsidiary nor any
of their respective Affiliates, has, with respect to the AT&T GCS Business:
                                    
     (A) incurred any material Liability except (i) Liabilities  included in the
AT&T GCS Business  Financials or (ii) Liabilities  incurred since July 31, 1998,
in the ordinary  course of the business  that would not  individually  or in the
aggregate have an AT&T GCS Business MAE;

     (B)  discharged  or  satisfied  any  material  Lien  or paid  any  material
Liability, except for such discharges, satisfactions or payments as were made in
the ordinary course of business or as would not individually or in the aggregate
have an AT&T GCS Business MAE;

     (C)  subjected to any Lien,  other than  Permitted  Liens,  any of the AT&T
Assets or any Assets used by the Contributed  AT&T  Subsidiaries in the AT&T GCS
Business except in the ordinary course of the AT&T GCS Business;

     (D) (i) sold, assigned, transferred, conveyed, leased or otherwise disposed
of, or agreed to sell, assign,  transfer,  convey, lease or otherwise dispose of
any  material  Assets of the AT&T GCS  Business,  or (ii) except as permitted by
this Agreement,  including Section 19.2, entered into any material joint venture
or  partnership,  or purchased or acquired any material  line of business of any
Person,  in the case of clause (i) or (ii) except in the ordinary  course of the
AT&T GCS Business,  or (iii) incurred any liability for any capital expenditures
other than in the ordinary course of the AT&T GCS Business; or
       
     (E) entered into any agreement  which provides for or will result in any of
the foregoing.

     (l) Permits.

<PAGE>

     (i) Schedule 17.1(l) contains true and correct lists of all claims that the
AT&T GCS  Business  has  received  in  writing  since  January  1, 1996 from any
Governmental  Body  alleging  noncompliance  by the AT&T GCS  Business  with any
Applicable  Law (other  than  Environmental  Laws) in  connection  with the AT&T
Sellers' or  Contributed  AT&T  Subsidiaries=  conduct of the AT&T GCS  Business
except for any such claims as would not individually or in the aggregate have an
AT&T GCS Business MAE.

     (ii) Except as disclosed in Schedule 17.1(1), all Permits necessary for the
conduct of the AT&T GCS  Business as presently  conducted  are in full force and
effect  and  the  AT&T  Sellers  and  the  Contributed  AT&T  Subsidiaries,   as
applicable,  are in  compliance  therewith  except for any failures to have such
Permits  or any  failures  of any  Permits  to be in full force and effect or in
compliance  as  would  not  individually  or in the  aggregate  have an AT&T GCS
Business MAE. Except as disclosed in Schedule 17.1(e),  no Action is pending or,
to AT&T's knowledge, threatened seeking the revocation or limitation of any such
Permit except for any Action as would not  individually or in the aggregate have
an AT&T GCS Business MAE.
              
     (m)  Compliance  with Laws.  Except as  disclosed  in Schedule  17.1(m) and
except with  respect to Taxes and  Environmental  Laws (which are the subject of
separate  representations and warranties),  the conduct of the AT&T GCS Business
and the AT&T  Property  Assets  complies and has since  January 1, 1996 complied
with all  Applicable Law and judgments,  orders or decrees  applicable  thereto,
except for such failures as would not  individually  or in the aggregate have an
AT&T GCS Business MAE.

     (n) Material Contracts.

     (i) For the purposes hereof, "AT&T Specified Contracts" shall mean (A) each
contract to which any of the AT&T  Sellers with respect to the AT&T GCS Business
or any of the Contributed AT&T Subsidiaries is a party involving a likely annual
expenditure  of more than $15 million or likely annual  revenue of more than $15
million    and   (B)    each    distribution,    international    correspondent,
supply/requirements  or customer agreement with respect to the AT&T GCS Business
to  which  AT&T  or  any  of  its  Affiliates  is a  party  representing  annual
expenditures or revenues of more than $25 million, or $100 million over the term
of the agreement.

     (ii)  Except as  disclosed  in  Schedule  17.1(n),  neither any of the AT&T
Sellers in  respect of the AT&T GCS  Business  nor any of the  Contributed  AT&T
Subsidiaries is a party to any:

     (A) agreement  preventing any  Contributed  AT&T  Subsidiary,  or agreement
that,  after the  Closing,  will  prevent  the Newco  Group,  BT or any of their
respective  Affiliates,  from competing with any other Person or engaging in any
material business activity;

     (B) guaranty of the obligations of any third party in excess of $25 million
in the aggregate;

     (C) note, mortgage, indenture or other obligation,  agreement or instrument
for or  relating  to any  lending  or  borrowing  of $25  million or more in the
aggregate,  except for lending or  borrowing  incurred  by the AT&T  Sellers for
general corporate purposes which does not encumber any of the AT&T Assets or the
Assets of the Contributed AT&T Subsidiaries;
                                
<PAGE>

     (D)  material  contract  with the  United  States or any other  federal  or
foreign  government  other than any such contract entered in the ordinary course
of  business  after  the date  hereof  or any  contract  with AT&T or any of its
Affiliates as of the date hereof; or

     (E) other contract,  agreement or  arrangement,  entered into other than in
the ordinary  course of business  and  requiring  future  payment or payments in
excess of $15 million  annually which is not terminable on no more than 90 days'
notice without material penalty.
                          
     (iii) With respect to each AT&T Specified Contract and with respect to each
Contributed  AT&T Contract,  such AT&T Specified  Contracts and the  Contributed
AT&T  Contracts  are, to the  knowledge of AT&T,  valid and binding  (subject to
applicable  Bankruptcy Law or other laws relating to or affecting the rights and
remedies of creditors  generally and to general principles of equity (regardless
of  whether  in equity or at law)),  except  for such  failures  to be valid and
binding as would not  individually or in the aggregate have an AT&T GCS Business
MAE. None of the AT&T Sellers or Contributed  AT&T  Subsidiaries  nor, to AT&T's
knowledge,  any other Person is in default under any such  contracts  except for
such defaults as to which  requisite  waivers or consents have been or are being
obtained or which would not  individually  or in the aggregate  have an AT&T GCS
Business MAE.
              
     (o)  Environmental  Matters.  Except as set forth on Schedule  17.1(o) and,
with respect to Sections  17.1(o)(i),  (ii), (iv) and (vi), except as would not,
individually  or in the aggregate,  have an AT&T GCS Business MAE, since January
1, 1996 (i) the AT&T GCS Business is and has been  conducted in accordance  with
all  applicable   Environmental  Laws  and  Environmental   Permits,   (ii)  all
Environmental  Permits are in full force and effect,  and the AT&T GCS  Business
has made all appropriate  filings for issuance or renewal of such  Environmental
Permits,  (iii) none of the AT&T  Sellers  with respect to the AT&T GCS Business
and  no  Contributed  AT&T  Subsidiary  has  been  notified  that  it  may  be a
"potentially   responsible   party"  under  the  United   States   Comprehensive
Environmental Response,  Compensation and Liability Act, an "Appropriate Person"
who has  liability  for  contaminated  land  clean-up  under Part II of the U.K.
Environmental  Act  1985,  or  may  be  the  substantial  equivalent  under  any
applicable  Environmental Law, (iv) none of the AT&T Sellers with respect to the
AT&T GCS Business and no  Contributed  AT&T  Subsidiary has received any written
notice from any Governmental  Body, or any other third party,  that alleges that
any of the AT&T Sellers with respect to the AT&T GCS Business or any Contributed
AT&T  Subsidiary  is  liable  under  or is not  in  compliance  with  applicable
Environmental  Laws or Environmental  Permits,  (v) there is no Action asserting
any  Environmental  Liability  in  excess  of  $10  million  pending,  or to the
knowledge of AT&T,  threatened,  against any of the AT&T Sellers with respect to
the AT&T GCS Business or any  Contributed  AT&T  Subsidiary,  and (vi) there has
been no reportable  release of any Hazardous  Substances at, on, or about, under
or within any AT&T  Property  Assets  or, to the  knowledge  of AT&T,  any other
premises at the time when such premises were formerly owned,  leased,  operated,
controlled  or occupied by the AT&T GCS  Business or by any  predecessor  of the
AT&T GCS Business (other than releases not in violation of Environmental Law).

     (p) Year 2000 Compliance.

     (i) All computer  software used in the AT&T GCS Business is or will be year
2000 compliant,  meaning that neither the performance nor the  functionality  of
the software or any service based on such software will be adversely affected by
the advent of the year 2000 or any other year,  or by the advent of September 9,
1999 or February 29, 2000,  except for such  failures to be year 2000  compliant
that would not individually or in the aggregate have an AT&T GCS Business MAE.

<PAGE>

     (ii) There is no fault with the  functionality or operation of any software
or other  systems used in the AT&T GCS Business that  detrimentally  affects the
quality  of  services  being  supplied  to  customers  or the  ongoing  cost  of
maintenance  and support of such  software or systems in  comparison  with other
equivalent  software or systems,  except such faults that would not individually
or in the aggregate have an AT&T GCS Business MAE.

     (q) Tax  Representations.  With respect to the AT&T GCS Business,  the AT&T
Assets and the Contributed AT&T Subsidiaries:

     (i) Each of AT&T, the AT&T Sellers and the  Contributed  AT&T  Subsidiaries
has complied in all material  respects with applicable tax regulations,  and has
duly and timely filed all United  States  federal,  foreign,  state,  county and
local Tax Returns required to be filed by it for all taxable periods or portions
thereof through the date of this  Agreement,  and will duly and timely file such
Returns as are required to be filed with respect to the taxable  periods  ending
on or before the Closing Date,  unless, in each case, the failure to do so would
not have an AT&T GCS Business MAE. Such Tax Returns have been prepared,  or will
be prepared, in accordance with all applicable  government  regulations and are,
or will be, accurate and complete in all respects,  except where a failure so to
prepare such Returns would not individually or in the aggregate have an AT&T GCS
Business  MAE.  Each  of  AT&T,  the  AT&T  Sellers  and  the  Contributed  AT&T
Subsidiaries  has timely paid or adequately  provided for (or will timely pay or
adequately provide for) all Taxes due and payable by such Person (whether or not
shown on any Returns),  and each of AT&T,  the AT&T Sellers and the  Contributed
AT&T Subsidiaries have adequately  provided (or will adequately provide) for all
Taxes which would be due with respect to the current taxable year if the current
taxable year ended at the close of business on the Closing Date,  except for any
such failures as would not  individually  or in the  aggregate  have an AT&T GCS
Business MAE.

     (ii) Except as set forth on  Schedule  17.1(q),  no  proposed  Taxes or Tax
deficiencies   have  been  asserted  against  AT&T,  the  AT&T  Sellers  or  the
Contributed  AT&T  Subsidiaries  relating to the AT&T GCS Business or any of the
Contributed AT&T Subsidiaries  except those that have been paid in full or those
which if determined  adversely to AT&T, the AT&T Sellers or the Contributed AT&T
Subsidiaries  would  not  individually  or in the  aggregate  have an  AT&T  GCS
Business MAE.

     (iii) Except as set forth on Schedule  17.1(q),  there are no and have been
no tax sharing or other  agreements or arrangements  regarding the allocation of
liability of Taxes or similar matters between or among AT&T or the AT&T Sellers,
on the one hand,  and any of the  Contributed  AT&T  Subsidiaries,  on the other
hand.

     (iv)  Except as set forth on  Schedule  17.1(q),  (A) there are no  pending
requests for rulings from any Taxing  authority  relating to any material  issue
affecting  any AT&T  Asset or  Contributed  AT&T  Subsidiary,  (B)  there are no
outstanding  subpoenas  or  written  requests  for  information  by  any  Taxing
authority  with respect to Taxes  relating to any material  issue  affecting any
AT&T Asset or Contributed AT&T  Subsidiary,  and (C) to the knowledge of AT&T or
the AT&T Sellers, there are no proposed reassessments by any Taxing authority of
any property that  constitutes an AT&T Asset,  or is owned or leased by any AT&T
Seller or any Contributed AT&T Subsidiaries.

<PAGE>

     (v)  Except  as set  forth  on  Schedule  17.1(q),  there  are  no  written
agreements  in  effect  to  extend  (A) the time to file any Tax  Return  of any
Contributed  AT&T  Subsidiaries  or  (B)  the  period  of  limitations  for  the
assessment or collection of any Taxes of any Contributed AT&T Subsidiaries.

     (vi)  Except as set forth on  Schedule  17.1(q),  there is no  pending  Tax
audit, examination,  investigation or similar proceeding involving any liability
for Taxes  relating to any  Contributed  AT&T  Subsidiaries  or the AT&T Assets,
which  would,  if  determined  adversely  to  AT&T,  the  AT&T  Sellers  or  the
Contributed  AT&T  Subsidiaries,  have an AT&T GSC Business MAE, nor have any of
the  Contributed  AT&T  Subsidiaries,  AT&T or any AT&T Seller  entered into any
closing  agreement  within  the  meaning  of  Section  7121 of the Code,  or any
analogous  provision  of state,  local or foreign law  relating to any  material
issue affecting any AT&T Asset or Contributed AT&T Subsidiary.

     (vii)  Except as set forth on Schedule  17.1(q),  the Income Tax Returns of
each  Contributed  AT&T  Subsidiary  have either been  examined by the  relevant
Taxing  authority  or the periods  covered by such Income Tax Returns  have been
closed by an applicable statute of limitations.

     (viii)  Except  as set  forth on  Schedule  17.1(q),  no  Contributed  AT&T
Subsidiary is or was a member of a U.S. Consolidated Group.

     (r) Conduct of AT&T GCS Business.  On the Closing Date, except as disclosed
on Schedule  17.1(r) or  otherwise  permitted  or  required  by this  Agreement,
including  Schedule  2.2,  or to effect the  Contribution  and the  transactions
contemplated  in connection  therewith  the following  shall be true and correct
with  respect to the period  from the date hereof to and  including  the Closing
Date:

     (i) AT&T will have caused the AT&T GCS  Business  to have been  operated in
the ordinary course;

     (ii) AT&T will have caused each Contributed AT&T Subsidiary not to have (A)
amended  its  constitutive  or  equivalent  documents;  (B) except as  otherwise
contemplated  hereby  (including  as may be  necessary  to transfer any non-AT&T
Assets from any  Contributed  AT&T  Subsidiary) and except for cash dividends or
distributions, declared or paid any dividend or distribution with respect to its
capital stock or share capital;  or (C)  repurchased  its capital stock or share
capital;
         
     (iii)  AT&T will have  caused  the AT&T  Sellers in respect of the AT&T GCS
Business and the Contributed AT&T Subsidiaries not to have (A) created, incurred
or assumed any material  long-term  or  short-term  Indebtedness,  except (1) in
connection with replacements of maturing or other Indebtedness, (2) intercompany
loans and advances  between a Contributed AT&T Subsidiary and AT&T or any of its
Affiliates and (3) Indebtedness incurred in the ordinary course of business; (B)
assumed,  guaranteed,  endorsed or otherwise  have become liable or  responsible
(whether  directly,  contingently or otherwise) for any material  obligations of
any other Person other than any of the  Contributed  AT&T  Subsidiaries;  or (C)
made any material loans, advances or capital contributions to or investments in,
any  Person  other  than any of the  Contributed  AT&T  Subsidiaries  (except as
permitted by this  Agreement or any other  Transaction  Agreement and except for
customary loans, advances or capital contributions consistent with past practice
or in accordance with contractual  arrangements  existing as the date hereof and
set forth on Schedule 17.1(r) and except intercompany loans and advances between
the Contributed AT&T Subsidiaries and AT&T or any of its Affiliates), except for
any of the  foregoing  that shall not become  obligations  of the Newco Group or
that shall have been settled or otherwise eliminated on or prior to the Closing;

<PAGE>

     (iv)  except as  required  by  Applicable  Law or  contractual  obligations
existing on the date hereof and set forth on  Schedule  17.1(r) or as  permitted
under or contemplated by this Agreement, any of the Local Purchase Agreements or
any of the other  Transaction  Agreements,  AT&T will have  caused  (1) the AT&T
Sellers not to have sold,  transferred  or otherwise  have  disposed of any AT&T
Assets,  and the Contributed AT&T Subsidiaries not to have sold,  transferred or
otherwise have disposed of any of their Assets,  with a total value of more than
$250 million in the aggregate,  other than in the ordinary course of business or
(2) the AT&T Sellers not to have created any Lien,  except a Permitted  Lien, on
the  AT&T  Assets  other  than  in  the  ordinary  course  of  business,  or the
Contributed AT&T  Subsidiaries not to have created any Lien,  except a Permitted
Lien, on any of their Assets other than in the ordinary course of business;

     (v) AT&T will have caused all  transactions  involving  AT&T and any of its
Affiliates, on the one hand, and the Contributed AT&T Subsidiaries, on the other
hand, or otherwise  involving  AT&T and its Affiliates and the AT&T GCS Business
to have been on an arm's length basis;

     (vi) subject to the terms and conditions of this Agreement,  to any effects
arising  principally  from having  entered  into the Term Sheet,  dated July 24,
1998,  between  AT&T and BT (the  "Term  Sheet"),  this  Agreement  or the other
Transaction  Agreements  and consistent  with operating in the ordinary  course,
AT&T will have used and will have caused the AT&T  Sellers  and the  Contributed
AT&T  Subsidiaries to have used, its or their reasonable  commercial  efforts to
preserve  the  AT&T  GCS  Business  intact,  and to  preserve  the  goodwill  of
customers,  suppliers and others  having  business  relations  with the AT&T GCS
Business; and

     (vii)  AT&T will have  caused  the AT&T  Sellers in respect of the AT&T GCS
Business and the Contributed  AT&T  Subsidiaries  not to have agreed to take any
action or refrain  from taking any action with  respect to the AT&T GCS Business
described in this Section 17.1(r).

     (s) Cables.  There is no fault with the  functionality  or operation of any
cable used in the AT&T GCS Business  that  detrimentally  affects the quality of
services  being  supplied to customers or the on-going cost of  maintenance  and
support of such cable in comparison  with other  equivalent  cables,  except for
such  faults  that  would  not  individually  or in  aggregate  have an AT&T GCS
Business MAE.

     17.2  Representations  and  Warranties of BT. BT represents and warrants to
the AT&T Parties and, with respect to Sections  17.2(a) through (q) and 17.2(s),
to Thistle BV, as follows:

     (a) Organization and Standing.  BT is a public limited company incorporated
under the laws of England  and Wales,  BT  Holdings  is a Besloten  Vennootschap
organized under the laws of The Netherlands, and Concert is an unlimited company
incorporated  under the laws of England  and Wales,  and each has all  requisite
corporate power and corporate  authority necessary to enable it to own, lease or
otherwise  hold its  properties  and  assets  and to carry  on its  business  as
presently  conducted.  Each of the  other  BT  Sellers  and the  Contributed  BT
Subsidiaries  is duly organized and validly  existing and, with respect to those
Persons  organized  under  the laws of  states  of the  United  States,  in good

<PAGE>

standing,  under the laws of the  jurisdiction of its  organization,  except for
such  failure to be in good  standing  which would not,  individually  or in the
aggregate have a Venture Business Material Adverse Effect.  Each of the other BT
Sellers and the  Contributed BT  Subsidiaries  (i) has all requisite  corporate,
partnership  or limited  liability  company power and authority to own, lease or
otherwise  hold its  properties  and  assets  and to carry  on its  business  as
presently  conducted,  and (ii) is duly  qualified to transact  business in each
jurisdiction  in which  the  nature  of  property  owned or  leased by it or the
conduct of its business requires it to be so qualified, except for such failures
to be so qualified as would not  individually or in the aggregate have a Venture
Business Material Adverse Effect.

     (b) Authorization;  Validity.  Each of BT and BT Holdings has all requisite
corporate  power and corporate  authority to execute and deliver this  Agreement
and the IPR Agreement,  to perform its obligations  hereunder and thereunder and
to consummate the transactions  contemplated hereby and thereby.  Each of BT, BT
Holdings and their Affiliates will have at the Closing all requisite  corporate,
partnership  or limited  liability  company  power and  authority to execute and
deliver  the  Transaction  Agreements  to be  executed  by it on or prior to the
Closing,  to perform its obligations under such Transaction  Agreements to which
it is a party and to  consummate  the  transactions  contemplated  thereby.  The
execution,  delivery  and  performance  by  each of BT and BT  Holdings  of this
Agreement  and the IPR  Agreement,  and  the  consummation  by each of BT and BT
Holdings of the  transactions  contemplated  hereby and thereby,  have been duly
authorized by all necessary  corporate  action on the part of BT and BT Holdings
and the execution, delivery and performance by each of BT, BT Holdings and their
Affiliates of the Transaction Agreements to be executed by it on or prior to the
Closing, and the consummation of the transactions  contemplated  thereby,  will,
prior to such  execution  and  delivery,  be duly  authorized  by all  necessary
corporate, partnership or limited liability company action on the part of BT, BT
Holdings  or such  Affiliates  and no other  corporate,  partnership  or limited
liability  company  proceedings or actions on the part of any of BT, BT Holdings
or such Affiliates,  or their respective  boards of directors or other governing
bodies or  stockholders,  partners or members will be necessary  therefor.  This
Agreement and the IPR Agreement have been, and the Transaction  Agreements to be
executed  by BT, BT  Holdings  and their  Affiliates  on or prior to the Closing
will,  when  executed and  delivered,  be, duly executed and delivered by BT, BT
Holdings and their  Affiliates,  as  applicable.  Assuming the due execution and
delivery hereof and thereof by the other parties thereto, this Agreement and the
IPR Agreement constitute, and the other Transaction Agreements to be executed by
BT, BT Holdings or their  Affiliates on or prior to the Closing will,  when duly
executed and delivered,  constitute, legal, valid and binding obligations of BT,
BT Holdings and such Affiliates that are parties thereto, enforceable against it
or them in accordance with their respective terms.

     (c) No Conflicts.  Except as set forth on Schedule 17.2(c),  the execution,
delivery and performance by each of BT and BT Holdings of this Agreement and the
IPR Agreement,  the  consummation of the  transactions  contemplated  hereby and
thereby and the  compliance  with the terms  hereof and thereof do not,  and the
execution,  delivery  and  performance  by each of BT,  BT  Holdings  and  their
Affiliates of the other Transaction  Agreements to be executed by it on or prior
to the  Closing,  the  consummation  of the  transactions  contemplated  by such
Transaction  Agreements  and  compliance  with  the  terms  of such  Transaction

<PAGE>

Agreements  will not at the Closing,  conflict  with, or constitute or result in
any Default under (i) any provision of the memorandum or articles of association
or bylaws of BT, the articles of  association of BT Holdings or any provision of
the constitutive or equivalent documents of any such Affiliate,  (ii) any order,
arbitration award, judgment,  injunction or decree against, or binding upon, any
of BT, BT Holdings or any such  Affiliate or upon its  properties or businesses,
(iii) any instrument, contract, mortgage, charge or other agreement to which BT,
BT  Holdings or any such  Affiliate  is a party or by which any of its Assets is
bound,  or (iv) under any  Applicable Law with respect to BT, BT Holdings or any
such  Affiliates,  or any of their  respective  Assets (except,  with respect to
clauses (ii), (iii) and (iv), for such conflicts or Defaults that,  individually
or in the aggregate,  would not have a material  effect on the ability of BT, BT
Holdings or any of their Affiliates,  as applicable,  to perform in all material
respects  its  obligations  under  this  Agreement  and  the  other  Transaction
Agreements to which it is a party in accordance with their  respective terms and
would not have a Venture Business Material Adverse Effect).

     (d)  Consents and  Approvals.  Except as provided in Schedule  17.2(d),  no
Third Party Approval and no Governmental  Approval is required to be obtained or
made by BT,  BT  Holdings  or any of their  Affiliates  in  connection  with the
execution,  delivery and performance of this Agreement and the other Transaction
Agreements  and the  transactions  contemplated  hereby and thereby,  except for
Third  Party  Approvals  or  Governmental  Approvals,   the  absence  of  which,
individually  or in the  aggregate,  would  not have a  material  effect  on the
ability of BT, BT Holdings or their Affiliates, as applicable, to perform in all
material respects its obligations under this Agreement and the other Transaction
Agreements to which it is a party in accordance with their  respective terms and
would not have a Venture Business Material Adverse Effect.

     (e) Litigation.

     (i) Except as set forth in  Schedule  17.2(e),  there  are,  as of the date
hereof, no Actions pending or, to the knowledge of BT, threatened  against BT or
any of its Affiliates or any property of BT or of any such Affiliate,  including
Intellectual  Property Rights, in any court or before any arbitrator of any kind
or in or before or by any Governmental Body, except Actions which,  individually
or in the aggregate,  are not reasonably  likely to, (x) have a material adverse
effect on BT or BT  Holdings or (y)  restrain,  enjoin or  otherwise  prevent or
materially delay the consummation of the transactions  contemplated hereby or by
any other  Transaction  Agreement,  in each case,  except with respect to Taxes,
which are the subject of separate representations and warranties.

     (ii) Schedule  17.2(e)  contains a list and brief  description  (other than
with  respect  to any Tax  matters)  as of the date  hereof  of (x) all  pending
Actions  against any of the BT Sellers  relating to their  conduct of the BT GCS
Business  or  against  any  of  the  Contributed  BT   Subsidiaries   and  which
individually  involve  an amount in excess of $10  million,  (y) all  threatened
Actions  against any of the BT Sellers  relating to their  conduct of the BT GCS
Business  or against any of the  Contributed  BT  Subsidiaries,  in each case of
which BT has knowledge and which individually involve an amount in excess of $10
million, and (z) all writs, injunctions, orders, and decrees of any Governmental
Bodies to which any of the BT Sellers is subject  relating  to their  conduct of
the BT GCS Business or against any of the Contributed BT  Subsidiaries,  in each
case which would,  individually  or in the  aggregate,  have a Material  Adverse
Effect on the BT GCS Business or on the Contributed BT  Subsidiaries  taken as a
whole (collectively, a "BT GCS Business MAE").

<PAGE>

     (iii) Except as  disclosed  in Schedule  17.2(e) and except with respect to
Taxes and Environmental Laws (which are the subject of separate  representations
and warranties), there are no Actions pending or, to BT's knowledge,  threatened
against any BT Seller relating to the BT GCS Business or against any Contributed
BT Subsidiary that would individually or in the aggregate have a BT GCS Business
MAE  or  prohibit  the  Contribution  of  the  BT  Assets  or  the  transactions
contemplated hereby or by any other Transaction  Agreement.  Except as disclosed
in Schedule 17.2(e), there are no judgments or outstanding orders,  injunctions,
decrees,  stipulations or awards (whether  rendered by a court or administrative
agency,  or by  arbitration)  against BT or any BT Seller and relating to the BT
GCS  Business  or against  any of the  Contributed  BT  Subsidiaries  that would
individually  or in the  aggregate  have a BT GCS  Business  MAE or  that  would
prohibit  the  Contribution  of the BT Assets or the  transactions  contemplated
hereby or by any other Transaction Agreement.

     (f) Brokers and Finders.  Except for the fees and  expenses  payable to N M
Rothschild & Sons Ltd.,  Rothschild  Inc.  and Morgan  Stanley Dean Witter & Co.
Inc.,  which  fees  and  expenses  will be paid by BT,  none of BT or any of its
Affiliates has employed any investment  banker,  broker,  finder,  consultant or
intermediary in connection with the transactions  contemplated by this Agreement
which  would be  entitled  to any  investment  banking,  brokerage,  finder's or
similar  fee  or  commission  in  connection  with  this  Agreement,  any  other
Transaction Agreement or the transactions contemplated hereby or thereby.

     (g) Contributed BT Subsidiaries.

     (i)  Schedule  17.2(g)  sets  forth  a  chart  describing   accurately  and
completely  the  organizational  structure and ownership of the  Contributed  BT
Subsidiaries and the authorized capitalization thereof.

     (ii) Except as disclosed in Schedule 17.2(g), all of the outstanding shares
of capital  stock or other equity  interests or other  securities of each of the
Contributed BT  Subsidiaries  has been, or if such  Contributed BT Subsidiary is
not yet organized  will, as of the Closing be,  validly issued and is fully paid
and nonassessable and, except for directors' qualifying shares and other nominal
share interests  issued to third parties to comply with Applicable Law, is owned
by the BT Sellers or one or more of the Contributed BT  Subsidiaries  and, as of
the Closing will be owned by a member of the Newco Group in each case,  free and
clear of all Liens consisting of pledges, mortgages, security interests, claims,
leases or voluntary liens.

     (iii)  Except as disclosed in Schedule  17.2(g),  there are no  outstanding
options, warrants or other rights of any kind to acquire, securities convertible
into or  obligations  to issue or  transfer  any shares of capital  stock of any
class  of,  or  other  equity  interests  or  other  securities  of,  any of the
Contributed BT Subsidiaries.

     (h) Financial Statements.

     (i) BT has  heretofore  provided  to  AT&T  true  and  complete  copies  of
unaudited statements of operating results relating to the historical performance
of the BT GCS Business, other than Concert and its Current Subsidiaries (the "BT
GCS Business  Financials").  The BT GCS Business Financials are true and correct
in all material respects,  were extracted from and are consistent with the books
and records used in the preparation of BT's audited financial statements for the
relevant  periods  covered by such  statements,  and were  prepared  in a manner
consistent with the accounting policies and practices of BT.

<PAGE>

     (ii) The audited  balance  sheet of Concert as of March 31,  1998,  and the
related profit and loss account,  revenue account and cashflow statement for the
year then ended,  including  the footnotes  thereto,  which have been audited by
PricewaterhouseCoopers,   independent   auditors   to  Concert   (the   "Concert
Financials"),  and which  have  heretofore  been  delivered  to AT&T,  have been
prepared in accordance with U.K. GAAP consistently  applied, and give a true and
fair view of the assets, liabilities and trading position of Concert as of March
31, 1998 and of its profit and cashflow for the year then ended.

     (iii)  Except  for the  Assumed  Concert  Purchase  Debt,  neither  Concert
Holdings nor BT  IntermediateCo  has or is subject to any Liabilities or has any
Assets except as expressly contemplated by this Agreement.

     (iv)  Schedule  17.2(h)A  is an  unaudited  consolidated  balance  sheet of
Concert and its Subsidiaries as of September 30, 1998.  Schedule  17.2(h)B is an
unaudited  balance sheet of Concert Holdings as of September 30, 1998. Each such
balance sheet was prepared in a manner  consistent with the accounting  policies
and practices of Concert or Concert Holdings,  as appropriate,  and reflects the
financial  position as of such date of Concert and its  Subsidiaries  or Concert
Holdings, as appropriate.  The matters set forth in Sections 17.2(r)(iii)(A) and
(B) shall be true and  correct on the  Closing  Date with  respect to the period
from September 30, 1998 to and including the Closing Date.

     (i) Undisclosed Liabilities; Adequacy of Assets.

     (i)  Except as  disclosed  in  Schedule  17.2(i),  except for  Excluded  BT
Liabilities, and except as reflected, reserved against or otherwise disclosed in
the BT GCS Business  Financials or the Concert Financials or incurred or arising
in the ordinary  course of the BT GCS Business  subsequent to July 31, 1998, the
BT GCS  Business  does not have any  Liabilities  that would be  required  to be
reflected  on a combined  statement  of net assets of the BT GCS Business if any
such statement  were to be prepared in accordance  with U.K. GAAP and that would
have a BT GCS Business MAE. No  Contributed BT Subsidiary has any Liability that
did not arise in the ordinary course of the BT GCS Business.

     (ii) The BT Assets  constitute all of the material  assets,  properties and
rights  owned by any BT  Seller  or any  Contributed  BT  Subsidiary  reasonably
necessary  for the conduct of the BT GCS Business as it is presently  conducted,
except (A) for any of the foregoing hereafter disposed of in the ordinary course
of business,  (B) for any shared-use or multiparty  facilities or Assets, (C) as
otherwise contemplated by the Transaction Agreements,  and (D) as would not have
a BT GCS  Business  MAE.  To  the  knowledge  of BT,  the  BT  Sellers  and  the
Contributed BT  Subsidiaries  do not lack any Asset  necessary for the continued
conduct of the BT GCS Business,  as the same has heretofore been conducted,  but
giving effect to the  transactions  contemplated by this Agreement and the other
Transaction  Agreements,  the absence of which would have a BT GCS Business MAE.
To the  knowledge  of BT, no BT  Assets  and no  Assets  of any  Contributed  BT
Subsidiary  are  impaired  in such a  manner  as  would  individually  or in the
aggregate have a BT GCS Business MAE.

     (j) Properties.

     (i)  Schedule  15.1B  includes a complete  list of (A) all real  properties
owned  by  the  BT  Sellers  and  included  in the BT  Assets  or  owned  by the
Contributed  BT  Subsidiaries  (the  "BT  Property  Assets"),  and (B) all  real
properties  leased by the BT Sellers of which the leasehold  rights are included
in the BT Assets and all real property leased by the Contributed BT Subsidiaries
and used by them in their conduct of the BT GCS Business, in each case involving
an annual rental of $10 million or more (the "BT Leases").

<PAGE>

     (ii) A BT Seller or one of the  Contributed BT Subsidiaries is the owner in
fee simple of and has good and marketable title to all of the BT Property Assets
listed in Schedule 15.1B and, except as set forth on Schedule 17.2(j),  all such
properties  are owned  free and clear of any Liens  except  Permitted  Liens and
except as would not have a BT GCS Business MAE.

     (iii)  Except as set forth in  Schedule  17.2(j),  each of the BT Leases is
valid and  enforceable  in  accordance  with its terms and is in full  force and
effect,  subject  to  applicable  Bankruptcy  Law or other laws  relating  to or
affecting  the  rights  and  remedies  of  creditors  generally  and to  general
principles  of equity  (regardless  of  whether  in equity or at law) and except
where the failure to be valid and  enforceable or in full force and effect would
not individually or in the aggregate have a BT GCS Business MAE.

     (iv) To the  knowledge  of BT,  there is no  pending or  threatened  order,
resolution or published  proposal for the compulsory  acquisition of, or similar
proceeding affecting, all or any material portion of the BT Property Assets, and
none of the BT Sellers or the  Contributed  BT  Subsidiaries  has  received  any
written  notice of any of the same that would  individually  or in the aggregate
have a BT GCS Business MAE.

     (v)  Except as set forth in  Schedule  17.2(j),  none of the BT  Sellers or
Contributed BT Subsidiaries  has received any notice in writing that any Default
exists under any of the material covenants, conditions,  restrictions, rights of
way or easements, if any, affecting all or any portion of the BT Property Assets
which are to be performed or complied with by the BT Sellers or the  Contributed
BT Subsidiaries as the owner of any of the BT Property  Assets,  except for such
Defaults as would not  individually  or in the aggregate  have a BT GCS Business
MAE.

     (vi) All  components  of all  buildings,  structures,  fixtures  and  other
improvements  in, on or within the BT Property Assets and any real property that
is the  subject of the BT Leases are in a state of  condition  and repair  which
enables  the  relevant  part  of the BT GCS  Business  to be  carried  on in the
relevant  real  property,   subject  to  continued  repair  and  replacement  in
accordance  with past  practice  and  except  for any  failures  that  would not
individually or in the aggregate have a BT GCS Business MAE.

     (k)  Absence  of  Certain  Changes.  Except as  disclosed  herein or in the
Schedules to this Section 17.2 or as otherwise  permitted  under the Transaction
Agreements,  since  July 31,  1998:  (i)  there has been no change in the BT GCS
Business which, taken as a whole,  constitutes a BT GCS Business MAE; (ii) there
has been no physical damage,  destruction or loss to any BT Assets or any Assets
of any  Contributed  BT  Subsidiary  that would have a BT GCS Business  MAE; and
(iii)  neither a BT Seller  nor a  Contributed  BT  Subsidiary  nor any of their
respective Affiliates, has, with respect to the BT GCS Business:

     (A) incurred any material Liability except (A) Liabilities  included in the
BT GCS  Business  Financials  or  the  balance  sheet  included  in the  Concert
Financials,  or (B)  Liabilities  incurred  since July 31, 1998, in the ordinary
course of the business that would not individually or in the aggregate have a BT
GCS Business MAE;

<PAGE>

     (B)  discharged  or  satisfied  any  material  Lien  or paid  any  material
Liability, except for such discharges, satisfactions or payments as were made in
the ordinary course of business or as would not individually or in the aggregate
have a BT GCS Business MAE;

     (C) subjected to any Lien, other than Permitted Liens, any of the BT Assets
or any Assets used by the  Contributed  BT  Subsidiaries  in the BT GCS Business
except in the ordinary course of the BT GCS Business;

     (D) (i) sold, assigned, transferred, conveyed, leased or otherwise disposed
of, or agreed to sell, assign,  transfer,  convey, lease or otherwise dispose of
any material Assets of the BT GCS Business,  or (ii) except as permitted by this
Agreement,  including  Section 19.2,  entered into any material joint venture or
partnership,  or  purchased  or acquired  any  material  line of business of any
Person,  in the case of clause (i) or (ii) except in the ordinary  course of the
BT GCS Business,  or (iii)  incurred any liability for any capital  expenditures
other than in the ordinary course of the BT GCS Business; or

     (E) entered into any agreement  which provides for or will result in any of
the foregoing.

     (l) Permits.

     (i) Schedule 17.2(1) contains true and correct lists of all claims that the
BT GCS  Business  has  received  in  writing  since  January  1,  1996  from any
Governmental  Body  alleging  noncompliance  by  the BT GCS  Business  with  any
Applicable  Law  (other  than  Environmental  Laws)  in  connection  with the BT
Sellers' or Contributed BT  Subsidiaries'  conduct of the BT GCS Business except
for any such claims as would not  individually or in the aggregate have a BT GCS
Business MAE.

     (ii) Except as disclosed in Schedule 17.2(1), all Permits necessary for the
conduct of the BT GCS  Business  as  presently  conducted  are in full force and
effect and the BT Sellers and the  Contributed BT  Subsidiaries,  as applicable,
are in compliance  therewith except for any failures to have such Permits or any
failures of any Permits to be in full force and effect or in compliance as would
not  individually  or in the  aggregate  have a BT GCS Business  MAE.  Except as
disclosed  in  Schedule  17.2(e),  no Action is pending  or, to BT's  knowledge,
threatened  seeking the  revocation  or limitation of any such Permit except for
any Action as would not  individually or in the aggregate have a BT GCS Business
MAE.

     (m)  Compliance  with Laws.  Except as  disclosed  in Schedule  17.2(m) and
except with  respect to Taxes and  Environmental  Laws (which are the subject of
separate representations and warranties), the conduct of the BT GCS Business and
the BT Property  Assets complies and has since January 1, 1996 complied with all
Applicable Law and judgments,  orders or decrees applicable thereto,  except for
such  failures  as would  not  individually  or in the  aggregate  have a BT GCS
Business MAE.

     (n) Material Contracts.

     (i) For the purposes hereof,  "BT Specified  Contracts" shall mean (A) each
contract to which any of the BT Sellers  with  respect to the BT GCS Business or
any of the  Contributed  BT  Subsidiaries  is a party  involving a likely annual
expenditure  of more than $15 million or likely annual  revenue of more than $15
million    and   (B)    each    distribution,    international    correspondent,
supply/requirements or customer agreement with respect to the BT GCS Business to
which BT or any of its Affiliates is a party representing annual expenditures or
revenues  of more  than  $25  million,  or $100  million  over  the  term of the
agreement.

<PAGE>

     (ii) Except as disclosed in Schedule 17.2(n), neither any of the BT Sellers
in respect of the BT GCS Business nor any of the  Contributed BT Subsidiaries is
a party to any:

     (A) agreement preventing any Contributed BT Subsidiary,  or agreement that,
after the Closing, will prevent the Newco Group, AT&T or any of their respective
Affiliates,  from  competing  with any other  Person or engaging in any material
business activity;

     (B) guaranty of the obligations of any third party in excess of $25 million
in the aggregate;

     (C) note, mortgage, indenture or other obligation,  agreement or instrument
for or  relating  to any  lending  or  borrowing  of $25  million or more in the
aggregate,  except  for  lending or  borrowing  incurred  by the BT Sellers  for
general  corporate  purposes which does not encumber any of the BT Assets or the
Assets of the Contributed BT Subsidiaries;

     (D)  material  contract  with the U.K.  or any  other  federal  or  foreign
government  other  than any such  contract  entered  in the  ordinary  course of
business  after the date hereof or any contract with BT or any of its Affiliates
as of the date hereof; or

     (E) other contract,  agreement or  arrangement,  entered into other than in
the ordinary  course of business  and  requiring  future  payment or payments in
excess of $15 million  annually which is not terminable on no more than 90 days'
notice without material penalty.
                           
     (iii) With respect to each BT  Specified  Contract and with respect to each
Contributed  BT Contract,  such BT Specified  Contracts and the  Contributed  BT
Contracts are, to the knowledge of BT, valid and binding  (subject to applicable
Bankruptcy Law or other laws relating to or affecting the rights and remedies of
creditors  generally and to general  principles of equity (regardless of whether
in equity or at law)), except for such failures to be valid and binding as would
not  individually or in the aggregate have a BT GCS Business MAE. None of the BT
Sellers or Contributed BT Subsidiaries nor, to BT's knowledge,  any other Person
is in default  under any such  contracts  except for such  defaults  as to which
requisite waivers or consents have been or are being obtained or which would not
individually or in the aggregate have a BT GCS Business MAE.

     (o)  Environmental  Matters.  Except as set forth on Schedule  17.2(o) and,
with respect to Sections  17.2(o)(i),  (ii), (iv) and (vi), except as would not,
individually  or in the aggregate,  have a BT GCS Business MAE, since January 1,
1996 (i) the BT GCS Business is and has been  conducted in  accordance  with all
applicable  Environmental Laws and Environmental Permits, (ii) all Environmental
Permits  are in full  force and  effect,  and the BT GCS  Business  has made all
appropriate filings for issuance or renewal of such Environmental Permits, (iii)
none of the BT Sellers with respect to the BT GCS Business and no Contributed BT
Subsidiary has been notified that it may be a "potentially  responsible  party,"
under the United States Comprehensive  Environmental Response,  Compensation and
Liability Act, an "Appropriate  Person" who has liability for contaminated  land
clean-up  under  Part  II of the  U.K.  Environmental  Act  1985,  or may be the
substantial equivalent under any applicable  Environmental Law, (iv) none of the

<PAGE>

BT Sellers with respect to the BT GCS Business and no  Contributed BT Subsidiary
has received any written notice from any  Governmental  Body, or any other third
party,  that  alleges  that any of the BT  Sellers  with  respect  to the BT GCS
Business  or  any  Contributed  BT  Subsidiary  is  liable  under  or is  not in
compliance with applicable  Environmental  Laws or  Environmental  Permits,  (v)
there is no  Action  asserting  any  Environmental  Liability  in  excess of $10
million pending,  or to the knowledge of BT,  threatened,  against any of the BT
Sellers with respect to the BT GCS Business or any  Contributed  BT  Subsidiary,
and (vi) there has been no reportable  release of any Hazardous  Substances  at,
on, or about, under or within any BT Property Assets or, to the knowledge of BT,
any other premises at the time when such premises were formerly  owned,  leased,
operated, controlled or occupied by the BT GCS Business or by any predecessor of
the BT GCS Business  (other than releases not in violation of any  Environmental
Law).
                  
     (p) Year 2000 Compliance.

     (i) All  computer  software  used in the BT GCS Business is or will be year
2000 compliant,  meaning that neither the performance nor the  functionality  of
the software or any service based on such software will be adversely affected by
the advent of the year 2000 or any other year,  or by the advent of September 9,
1999 or February 29, 2000,  except for such  failures to be year 2000  compliant
that would not individually or in the aggregate have a BT GCS Business MAE.

     (ii) There is no fault with the  functionality or operation of any software
or other  systems used in the BT GCS  Business  that  detrimentally  affects the
quality  of  services  being  supplied  to  customers  or the  ongoing  cost  of
maintenance  and support of such  software or systems in  comparison  with other
equivalent  software or systems,  except such faults that would not individually
or in the aggregate have a BT GCS Business MAE.

     (q) Tax Representations. With respect to the BT GCS Business, the BT Assets
and the Contributed BT Subsidiaries:

     (i) Each of BT, the BT Sellers  and the  Contributed  BT  Subsidiaries  has
complied in all material respects with applicable tax regulations,  and has duly
and timely filed all United  Kingdom,  United States  federal,  foreign,  state,
county and local Tax Returns  required to be filed by it for all taxable periods
or portions thereof through the date of this Agreement, and will duly and timely
file such  Returns  as are  required  to be filed with  respect  to the  taxable
periods ending on or before the Closing Date,  unless, in each case, the failure
to do so would  not have a BT GCS  Business  MAE.  Such Tax  Returns  have  been
prepared,  or will be prepared,  in accordance  with all  applicable  government
regulations and are, or will be,  accurate and complete in all respects,  except
where a failure so to prepare  such  Returns  would not  individually  or in the
aggregate  have a BT GCS  Business  MAE.  Each  of BT,  the BT  Sellers  and the
Contributed BT Subsidiaries has timely paid or adequately  provided for (or will
timely pay or  adequately  provide for) all Taxes due and payable by such Person
(whether  or not shown on any  Returns),  and each of BT, the BT Sellers and the
Contributed  BT  Subsidiaries  have  adequately  provided  (or  will  adequately
provide)  for all Taxes which would be due with  respect to the current  taxable
year if the current  taxable  year ended at the close of business on the Closing
Date, except for any such failures as would not individually or in the aggregate
have a BT GCS Business MAE.

<PAGE>

     (ii) Except as set forth in  Schedule  17.2(q),  no  proposed  Taxes or Tax
deficiencies have been asserted against BT, the BT Sellers or the Contributed BT
Subsidiaries  relating  to the  BT GCS  Business  or any of the  Contributed  BT
Subsidiaries  except  those  that  have  been  paid in full or  those  which  if
determined  adversely to BT, the BT Sellers or the  Contributed BT  Subsidiaries
would not individually or in the aggregate have a BT GCS Business MAE.

     (iii) Except as set forth on Schedule  17.2(q),  there are no and have been
no tax sharing or other  agreements or arrangements  regarding the allocation of
liability  of Taxes,  reimbursement  for group  relief or  consortium  relief or
similar matters between or among BT or the BT Sellers,  on the one hand, and any
of the Contributed BT Subsidiaries, on the other hand.

     (iv)  Except as set forth on  Schedule  17.2(q),  (A) there are no  pending
requests for rulings from any Taxing  authority  relating to any material  issue
affecting  any  BT  Asset  or  Contributed  BT  Subsidiary,  (B)  there  are  no
outstanding  subpoenas  or  written  requests  for  information  by  any  Taxing
authority with respect to Taxes relating to any material issue  affecting any BT
Asset or  Contributed  BT  Subsidiary,  and (C) to the knowledge of BT or the BT
Sellers,  there are no proposed  reassessments  by any Taxing  authority  of any
property that  constitutes a BT Asset, or is owned or leased by any BT Seller or
any Contributed BT Subsidiaries.

     (v)  Except  as set  forth  on  Schedule  17.2(q),  there  are  no  written
agreements  in  effect  to  extend  (A) the time to file any Tax  Return  of any
Contributed BT  Subsidiaries or (B) the period of limitations for the assessment
or collection of any Taxes of any Contributed BT Subsidiaries.

     (vi)  Except as set forth on  Schedule  17.2(q),  there is no  pending  Tax
audit, examination,  investigation or similar proceeding involving any liability
for Taxes  relating to any  Contributed BT  Subsidiaries  or the BT Assets which
would,  if  determined  adversely  to BT, the BT Sellers or the  Contributed  BT
Subsidiaries  have a BT GCS  Business  MAE, nor have any of the  Contributed  BT
Subsidiaries,  BT or any BT Seller entered into any closing agreement within the
meaning of Section 7121 of the Code, or any analogous  provision of state, local
or  foreign  law  relating  to any  material  issue  affecting  any BT  Asset or
Contributed BT Subsidiary.

     (vii)  Except as set forth on Schedule  17.2(q),  the Income Tax Returns of
each  Contributed BT Subsidiary have either been examined by the relevant Taxing
authority or the periods  covered by such Income Tax Returns have been closed by
an applicable statute of limitations.

     (viii)  No  Contributed  BT  Subsidiary  is  or  was  a  member  of a  U.S.
Consolidated Group.

     (ix)  There  are  no  transactions  which  have  been  carried  out  by the
Contributed  BT  Subsidiaries  in respect of which special  consent was required
from H.M.  Treasury under the  provisions of section 765 of the U.K.  Income and
Corporation  Taxes Act 1988 without such consent  having first been obtained and
all relevant information supplied to H.M. Treasury.

<PAGE>

     (r) Conduct of BT GCS Business. On the Closing Date, except as disclosed on
Schedule 17.2(r) or otherwise permitted or required by this Agreement, including
Schedule 2.2, or to effect the Contribution and the transactions contemplated in
connection  therewith,  the following  shall be true and correct with respect to
the period from the date hereof to and including the Closing Date:

     (i) BT will have caused the BT GCS  Business  to have been  operated in the
ordinary course;

     (ii) BT will have caused each  Contributed  BT  Subsidiary  not to have (A)
amended  its  constitutive  or  equivalent  documents;  (B)  subject  to Section
17.2(u),  except as otherwise contemplated hereby (including as may be necessary
to transfer any non-BT Assets from any  Contributed BT Subsidiary  other than BT
IntermediateCo,  Concert Holdings or any of their  Subsidiaries)  and except for
cash dividends or  distributions,  declared or paid any dividend or distribution
with  respect to its capital  stock or share  capital;  or (C)  repurchased  its
capital stock or share capital;

     (iii) BT will have caused the BT Sellers in respect of the BT GCS  Business
and the Contributed BT Subsidiaries not to have (A) created, incurred or assumed
any long-term or short-term  Indebtedness,  except pursuant to Section  15.7(a);
(B) assumed, guaranteed, endorsed or otherwise have become liable or responsible
(whether  directly,  contingently or otherwise) for any material  obligations of
any other Person other than any of the Contributed BT Subsidiaries;  or (C) made
any material loans,  advances or capital contributions to or investments in, any
Person other than any of the Contributed BT Subsidiaries (except as permitted by
this  Agreement  or any other  Transaction  Agreement  and except for  customary
loans,  advances or capital  contributions  consistent  with past practice or in
accordance  with  contractual  arrangements  existing as the date hereof and set
forth on Schedule 17.2(r) and except intercompany loans and advances between the
Contributed BT Subsidiaries and BT or any of its Affiliates),  except for any of
the foregoing that shall not become obligations of the Newco Group or that shall
have been settled or otherwise eliminated on or prior to the Closing;

     (iv)  except as  required  by  Applicable  Law or  contractual  obligations
existing on the date hereof and set forth on  Schedule  17.2(r) or as  permitted
under  or  contemplated  by  this  Agreement  or any of  the  other  Transaction
Agreements, BT will have caused (1) the BT Sellers not to have sold, transferred
or otherwise have disposed of any BT Assets, and the Contributed BT Subsidiaries
not to have sold, transferred or otherwise have disposed of any of their Assets,
with a total value of more than $250 million in the aggregate, other than in the
ordinary  course of business or (2) the BT Sellers not to have created any Lien,
except a Permitted  Lien, on the BT Assets other than in the ordinary  course of
business or the Contributed BT Subsidiaries not to have created any Lien, except
a Permitted  Lien,  on any of their Assets other than in the ordinary  course of
business;

     (v) BT  will  have  caused  all  transactions  involving  BT and any of its
Affiliates,  on the one hand, and the Contributed BT Subsidiaries,  on the other
hand, or otherwise  involving BT and its  Affiliates  and the BT GCS Business to
have been on an arm's length basis;

     (vi) subject to the terms and conditions of this Agreement,  to any effects
arising  principally from having entered into the Term Sheet,  this Agreement or
the other  Transaction  Agreements and consistent with operating in the ordinary
course,  BT will  have  used,  and  will  have  caused  the BT  Sellers  and the
Contributed BT  Subsidiaries  to have used, its or their  reasonable  commercial
efforts to preserve the BT GCS Business intact,  and to preserve the goodwill of
customers,  suppliers  and  others  having  business  relations  with the BT GCS
Business; and

<PAGE>

     (vii) BT will have caused the BT Sellers in respect of the BT GCS  Business
and the  Contributed  BT  Subsidiaries  not to have agreed to take any action or
refrain from taking any action with respect to the BT GCS Business  described in
this Section 17.2(r).

     (s) Cables.  There is no fault with the  functionality  or operation of any
cable used in the BT GCS  Business  that  detrimentally  affects  the quality of
services  being  supplied to customers or the on-going cost of  maintenance  and
support of such cable in comparison  with other  equivalent  cables,  except for
such faults that would not  individually  or in aggregate have a BT GCS Business
MAE.

     (t) Intercompany Agreements;  Purchase of MCI's Interest in Concert. Except
as set forth on Schedule 17.2(t),  none of Concert Holdings,  Concert, any other
Contributed  BT Subsidiary or any of their  Subsidiaries,  on the one hand, is a
party to any agreement or arrangement  with BT or any of its  Affiliates  (other
than Concert or one or more of its Subsidiaries),  or MCI or MCI-WorldCom or any
of their Affiliates, on the other hand. Except as set forth on Schedule 17.2(t),
none of the agreements or  arrangements  entered into by either BT or Concert or
any of their  respective  Affiliates  in  connection  with the  purchase  of the
Purchased  Shares  will  impose  any  Liabilities  upon  Concert  or  any of its
Affiliates which,  individually or in the aggregate, are material to Concert, or
would,  individually or in the aggregate,  have a material adverse effect on the
business,  operations or financial condition of Concert.  Except as set forth on
Schedule  17.2(t),  none of BT  IntermediateCo,  Concert  Holdings  or any other
Contributed  BT Subsidiary is subject to any  Liabilities  that did not arise in
the ordinary course of conduct of their Global Business  Communications Services
business.

     (u) Concert Distributions; Indebtedness.

     (i)  Since  March  31,  1998  and  through  to  the  Closing,  none  of  BT
IntermediateCo,  Concert Holdings or any of their  Subsidiaries has or will have
(x)  declared,  paid  or  made  any  dividends  or  other  distributions  on its
outstanding share capital,  or (y) redeemed,  retired,  purchased,  or otherwise
acquired for value any shares of any of its classes of share capital.

     (ii) From March 31, 1998 to the date  hereof,  (x) Concert was  operated in
the ordinary course of business other than any matter resulting from or relating
to Concert's  restructuring of its relationship with MCI (and for these purposes
the  change-over  from leasing to owning  circuits  shall be deemed to be in the
ordinary  course of  business),  and (y)  Concert has not  created,  incurred or
assumed long-term or short-term Indebtedness or assumed, guaranteed, endorsed or
otherwise  become  liable or  responsible  (whether  directly,  contingently  or
otherwise)  for any material  obligations  of any other  Person,  except to fund
losses and to invest in  Concert's  business  to operate  such  business  in the
ordinary  course as such ordinary  course is described in the  preceding  clause
(x). As of  September  30,  1998,  the net debt of Concert was not greater  than
65.15 million pounds sterling, as shown on the attached Schedule 17.2(u).
                  
     For purposes of this Section 17.2(u) only, a breach of this  representation
shall be remedied by BT by a payment of cash to Concert,  or a  cancellation  of
Indebtedness owed by Concert to BT, in an amount equal to any Indebtedness above
the level provided in the preceding sentence.

<PAGE>

     (v) Organization and Standing.  Thistle BV is a Besloten  Vennootschap duly
organized  under the laws of The  Netherlands,  and has all requisite  corporate
power and corporate  authority necessary to enable it to own, lease or otherwise
hold  its  properties  and  assets  and to carry on its  business  as  presently
conducted.

     (w) Share  Capital of Thistle  BV. The total  authorized  share  capital of
Thistle BV is NLG 200,000, divided into 2,000 shares with a nominal value of NLG
100 per share,  of which 400 shares have been issued to, and are  registered  in
the  name  of,  BT  Holdings.  Thistle  BV is a  wholly-owned  Subsidiary  of BT
Holdings.

     (x) No  Operations.  Except for  obligations  or  liabilities  incurred  in
connection with the costs and expenses of its  incorporation or organization and
with the transactions  contemplated in the Transaction  Agreements and the Local
Purchase Agreements,  Thistle BV has not incurred any obligations or liabilities
or  engaged  in any  business  or  activities  of any type or  entered  into any
agreements or arrangements with any Person.

     (y)  Thistle  BV  Authorization;  Validity.  Thistle  BV has all  requisite
corporate  power and corporate  authority to execute and deliver this  Agreement
and the IPR Agreement,  to perform its obligations  hereunder and thereunder and
to consummate the transactions  contemplated hereby and thereby. Thistle BV will
have at the Closing all requisite  corporate  power and  corporate  authority to
execute and deliver the Transaction Agreements and the Local Purchase Agreements
to be executed  by it on or prior to the  Closing,  to perform  its  obligations
under such other  Transaction  Agreements and such Local Purchase  Agreements to
which it is a party and to consummate the transactions contemplated thereby. The
execution,  delivery and performance by Thistle BV of this Agreement and the IPR
Agreement,  and the consummation by Thistle BV of the transactions  contemplated
hereby and thereby have been duly authorized by all necessary  corporate  action
on the part of Thistle BV. The execution, delivery and performance of Thistle BV
of the Transaction  Agreements and the Local Purchase  Agreements to be executed
by it on or prior  to the  Closing,  and the  consummation  of the  transactions
contemplated  thereby,  will,  prior to such  execution  and  delivery,  be duly
authorized  by all necessary  corporate  action on the part of Thistle BV and no
other  corporate  proceedings  or  action  on  the  part  of  Thistle  BV or its
Management Board or shareholders will be necessary therefor.  This Agreement and
the IPR  Agreement  have  been,  and the  Transaction  Agreements  and the Local
Purchase  Agreements  to be  executed  by Thistle BV on or prior to the  Closing
will,  when executed and  delivered,  be, duly executed and delivered by Thistle
BV. This Agreement and the IPR Agreement  constitute,  and the other Transaction
Agreements and the Local Purchase  Agreements to be executed by Thistle BV on or
prior to the Closing will, when duly executed and delivered,  constitute, legal,
valid  and  binding  obligations  of  Thistle  BV,  enforceable  against  it  in
accordance with their respective terms.

     (z) Thistle BV No Conflicts.  Except as set forth on Schedule 17.2(z),  the
execution,  delivery and performance by Thistle BV of this Agreement and the IPR
Agreement, the consummation of the transactions  contemplated hereby and thereby
and the compliance  with the terms hereof and thereof do not, and the execution,
delivery and performance by Thistle BV of the other  Transaction  Agreements and
the Local  Purchase  Agreements to be executed by it on or prior to the Closing,

<PAGE>

the consummation of the transactions contemplated by such Transaction Agreements
and such  Local  Purchase  Agreements  and  compliance  with  the  terms of such
Transaction  Agreements  and  such  Local  Purchase  Agreements  will not at the
Closing,  conflict  with,  or  constitute or result in any Default under (i) any
provision  of the  Thistle BV  Charter  Documents,  (ii) any order,  arbitration
award,  judgment,  injunction or decree against,  or binding upon, Thistle BV or
upon its properties or businesses,  (iii) any  instrument,  contract,  mortgage,
charge or other agreement to which it is bound, or by which any of its Assets is
bound, or (iv) under any Applicable Law with respect to Thistle BV or any of its
Assets (except, with respect to clauses (ii), (iii) and (iv), for such conflicts
or Defaults that,  individually  or in the aggregate,  would not have a material
effect on the  ability of Thistle BV to  perform in all  material  respects  its
obligations  under this Agreement and the other  Transaction  Agreements and the
Local  Purchase  Agreements  to  which it is a party in  accordance  with  their
respective terms and would not have a Venture Business Material Adverse Effect).

     (aa)  Litigation;  Orders.  There  are  no  Actions  pending  or,  to  BT's
knowledge,  threatened  against  Thistle  BV that would  individually  or in the
aggregate  have a Venture  Business  Material  Adverse  Effect or  prohibit  the
Contribution  or the  transactions  contemplated  hereby  or by any of the other
Transaction   Agreements.   There  are  no  judgments  or  outstanding   orders,
injunctions,  decrees,  stipulations or awards  (whether  rendered by a court or
administrative  agency,  or  by  arbitration)  against  Thistle  BV  that  would
individually or in the aggregate have a Venture Business Material Adverse Effect
or that would prohibit the Contribution or the transactions  contemplated hereby
or by any of the other Transaction Agreements.

                                   ARTICLE 18
                                    COVENANTS

     18.1 Conduct of AT&T GCS Business; Conduct of BT GCS Business.

     (a) Except as otherwise provided herein, nothing in this Agreement shall be
construed or  interpreted to (x) limit or prevent the AT&T Sellers or any of the
Contributed  AT&T  Subsidiaries  prior to the  Closing  Date from (i)  making or
accepting intercompany advances to, from or with one another or with AT&T or any
of its  Affiliates  or (ii) engaging in any  transaction  incident to the normal
cash  management  procedures of AT&T and its  Affiliates,  including  short-term
investments  in  bank  deposits,   money  market  instruments,   time  deposits,
certificates  of deposit and bankers'  acceptances  and  borrowings  for working
capital purposes and purposes of providing  additional funds to the AT&T Sellers
and the  Contributed  AT&T  Subsidiaries  in the  ordinary  course of  business;
provided,  that, none of such actions would have an AT&T GCS Business MAE or (y)
limit  or  prevent  (i)  transfers  of  assets  or  liabilities  by  AT&T or its
Affiliates to  facilitate  the transfer of the AT&T Assets to the Newco Group at
the Closing,  (ii) other  activities  of AT&T and its  Affiliates  undertaken in
connection  with   provisioning  for  the  transition  period  pursuant  to  the
Transition  Plan  before  the  establishment  of the  Newco  Group  and  for the
establishment of the Newco Group, and (iii) activities undertaken by AT&T or any
of its Affiliates in connection with the withdrawal from the alliances set forth
on Schedule 18.9 or in connection with the formation of ConsumerCo.

<PAGE>

     (b) Except as otherwise provided herein, nothing in this Agreement shall be
construed  or  interpreted  to (x) limit or prevent the BT Sellers or any of the
Contributed  BT  Subsidiaries  prior to the  Closing  Date  from (i)  making  or
accepting  intercompany  advances to, from or with one another or with BT or any
of its  Affiliates  or (ii) engaging in any  transaction  incident to the normal
cash  management  procedures  of BT and  its  Affiliates,  including  short-term
investments  in  bank  deposits,   money  market  instruments,   time  deposits,
certificates  of deposit and bankers'  acceptances  and  borrowings  for working
capital  purposes and purposes of providing  additional  funds to the BT Sellers
and  the  Contributed  BT  Subsidiaries  in the  ordinary  course  of  business;
provided,  that,  none of such  actions  would have a BT GCS Business MAE or (y)
limit or prevent (i) transfers of assets or  liabilities by BT or its Affiliates
to  facilitate  the transfer of the BT Assets to the Newco Group at the Closing,
(ii) other  activities of BT and its  Affiliates  undertaken in connection  with
provisioning  for the transition  period  pursuant to the Transition Plan before
the  establishment  of the Newco  Group and for the  establishment  of the Newco
Group, and (iii) activities undertaken by BT, Concert or any of their Affiliates
in connection with the withdrawal of MCI from Concert.

     (c) AT&T and BT shall cause the representations and warranties set forth in
Sections  17.1(r)  and  17.2(r),  respectively,  to be true and  correct  in all
material respects on and as of the Closing.

     18.2 No Amendments.  None of Concert,  BT or any of their  Affiliates shall
(a) enter into or agree to any material  amendment,  by supplement or otherwise,
to the provisions of the  MCI-WorldCom  Distribution  Agreement or (b) extend or
agree to extend the two year term or the three year run-off period thereof.

     18.3 EU Merger  Regulation.  From the date of this  Agreement,  each parent
shall use its Best Efforts to secure that the transactions  contemplated  hereby
will be considered by the European  Commission under the European Merger Control
Regulation,  including  the  procedures  and  timetable  provided for in Council
Regulation  EEC No.  4064/89 and its  associated  regulations  (each as amended)
(collectively, the "EU Merger Regulations"); provided, however, that neither the
foregoing  nor the  provisions  of Section  20.3 shall (a) limit or restrict the
parents'  ability to  negotiate  the terms of any  Transaction  Agreement to the
extent not agreed on the date hereof,  or (b) require  either parent to agree to
any  material  change to (i) the  structure  of the Newco Group as  described in
Schedule  2.2,  (ii) the  Initial  Contributed  Assets,  or (iii) any  important
restriction,  modification,  limitation  or reduction of the second  sentence of
Section 11.6, including any applicable exceptions thereto, or any other material
term of this Agreement or any other Transaction Agreement.

     18.4 Governmental Approvals.

     (a) Subject to  Sections  19.2 and 19.3,  from the date of this  Agreement,
each parent shall use its Best Efforts to obtain the Governmental  Approvals set
forth  in  Schedule  17.1(d)  and  Schedule  17.2(d)  (collectively,   the  "Key
Governmental  Approvals")  necessary  for  the  parents,  Thistle  BV and  their
Subsidiaries  to consummate the  transactions  contemplated  by the  Transaction
Agreements  within 12 months  from the date  hereof;  provided,  however,  that,
whether in connection  with any  discussions  with any  Governmental  Body or in
connection  with any  Governmental  Approval  with  respect to the  transactions

<PAGE>

contemplated hereby or otherwise, (i) the obligations of the parents to use Best
Efforts shall not limit or restrict the parents'  ability to negotiate the terms
of any Transaction  Agreement to the extent not agreed on the date hereof,  (ii)
neither  parent  shall  be  required  to  agree  to any  important  restriction,
modification,  limitation  or reduction of the second  sentence of Section 11.6,
including any applicable exceptions thereto, (iii) without limiting clause (ii),
the exclusion for Material  Adverse  Effect in the  definition of "Best Efforts"
shall apply to and shall be deemed to include any restriction, condition, burden
or detriment  applicable  to a parent's own business or on the proposed  Venture
Business,  and (iv) neither BT nor any of its Subsidiaries  shall be required to
take any of the actions or provide  any of the  services  described  in Schedule
18.4. Any Key  Governmental  Approval that is granted or proposed subject to any
of the matters  referred to in the  proviso to the  preceding  sentence or which
would have a Material Adverse Effect on the applicable  parent's own business or
on the  proposed  Venture  Business  shall be  deemed to  contain a  "Burdensome
Condition."

     (b) From the date of this Agreement,  the parents shall make or cause to be
made  available  all  information  reasonably  requested  by the other parent to
permit all necessary  filings and notices to the European  Commission to be made
within one week following the execution of this Agreement,  and, with respect to
filings and  notifications  in the United States and  elsewhere,  as promptly as
practicably  following the execution hereof.  The parents shall promptly furnish
or cause to be furnished all  information and documents  reasonably  required by
the relevant  Governmental  Bodies, and make or cause to be made available staff
to give evidence to such  Governmental  Bodies,  in each case as  appropriate in
order to obtain the Key Governmental Approvals.

     (c) At all times prior to the  Closing,  the parents  shall  cooperate  and
coordinate  with  each  other,   as   appropriate,   with  respect  filings  and
notifications to Governmental  Bodies in connection with obtaining  Governmental
Approvals for the transactions contemplated hereby.

     18.5 Access.  From the date of this Agreement  until the Closing Date, each
parent shall give to the other parent and its representatives  reasonable access
during normal business hours to the properties, books and records of such parent
and its Affiliates to the extent relating to the Initial  Contributed Assets and
the  Assumed  Liabilities  and  furnish  each  other  with all such  information
concerning the AT&T GCS Business or the BT GCS Business,  as the case may be, as
the other parent may reasonably request, subject to appropriate  confidentiality
restrictions  and  restrictions  on sharing of information  imposed by contracts
with third parties or Applicable Law.  Without  limiting the foregoing,  BT will
provide AT&T and its  representatives  reasonable  access during normal business
hours  to the  information,  books  and  records  relating  to  Concert  and its
business,  operations,   contracts,  assets,  liabilities,  revenues  and  other
financial information.

     18.6 Books and Records.  From the date of this Agreement  until the Closing
Date, each parent shall, and shall cause its Affiliates to, continue to maintain
the books,  accounts and records of such parent and the AT&T GCS Business or the
BT GCS Business,  as the case may be, in the usual,  regular and ordinary manner
on a basis  consistent  with prior  years and  periods,  except as  required  by
Applicable Law or the GAAP of the applicable jurisdiction of such businesses, as
the case may be.

<PAGE>

     18.7  Further  Assurances.  The  parties  shall use their  Reasonable  Best
Efforts to consummate the transactions contemplated hereby, subject to the terms
hereof.  Each party shall execute,  or cause to be executed,  such documents and
other instruments, and take or cause to be taken such further actions, as may be
reasonably  requested to carry out the  provisions  hereof and the  transactions
contemplated hereby, subject in all cases, to the terms hereof.

     18.8 Other  Documents.  As soon as  reasonably  practicable  after the date
hereof but prior to the Closing Date, the parents shall  negotiate in good faith
to reach mutual agreement on the definitive terms and conditions of:

     (a) an investment fund  agreement,  which shall contain the terms set forth
in Schedule  18.8  attached  hereto and such other terms and  conditions  as the
parents shall agree (the "Investment Fund Agreement");

     (b) systems and other support services agreements, including, to the extent
not covered in a Supply Agreement (Parent Components), agreements for the supply
by the  parents  to the Newco  Group of  capacity  and other  telecommunications
services;

     (c) an employee matters agreement, which shall contain terms and conditions
as the parents shall agree (the "Employee Matters Agreement");

     (d) to the extent not covered in the IPR Agreement,  any trademark licenses
to be granted by the parents to the Newco Group or vice versa;

     (e) the transition plan (the "Transition Plan"), identifying the actions to
be taken by the  parents,  consistent  with legal,  regulatory  and  contractual
obligations, including time schedules for implementation, in order to facilitate
the establishment of the Newco Group and the Venture Business;

     (f) the pricing and risk principles to be incorporated in the  subcontracts
referred to in Section 7.6;

     (g) supply  agreements  for the supply by the Newco Group to each parent of
facilities  and services  involving the Global  Network  Facilities of the Newco
Group, including multi-use facilities and earth stations; and

     (h) supply  agreements  for the supply by each parent to the Newco Group of
facilities  and services  involving  the  Domestic  Network  Facilities  of such
parent, including multi-use facilities.

     18.9  Activities  With  Respect to  Alliances.  With respect to the Persons
listed in Schedule  18.9,  AT&T shall take the actions  listed in such  Schedule
within the time periods set forth therein;  provided,  however, that, if AT&T is
prevented or restrained by any order, judgment,  injunction,  award or decree by
any Governmental  Body from so taking such action, so long as AT&T is diligently
and in good faith  pursuing all  available  legal  remedies to cause such order,
judgment, injunction, award or decree to be withdrawn,  terminated,  canceled or
released,  the applicable time period set forth in Schedule 18.9 shall be tolled
for the period of time any such order, judgment,  injunction, award or decree is
in effect and binding on AT&T; provided,  further,  however,  that AT&T shall be
entitled to engage in the transitional and other post-termination activities set
forth on Schedule 18.9.

<PAGE>

     18.10 Confidentiality.

     (a) The terms of the separate  Confidentiality  Agreements  dated March 11,
1998 and June 8, 1998  between the parents  (the  "Confidentiality  Agreements")
shall apply to all  Evaluation  Material (as defined  therein)  disclosed to the
other  parent  as a result of the  discussions,  negotiations  or due  diligence
process contemplated in this Agreement.

     (b) Each  parent  shall,  and shall cause its  Affiliates  and its or their
directors,  officers, employees and agents (each, a "Recipient") to, maintain in
confidence the terms of this Agreement and the other Transaction  Agreements and
all information  furnished to each such Recipient in connection with or relating
to this Agreement,  the other Transaction Agreements or the business and affairs
of the Newco Group.  The preceding  sentence shall not apply to information that
(i)  becomes  generally  available  to the  public  other  than as a  result  of
disclosure by such recipient  contrary to this Agreement,  (ii) was available to
such  Recipient  on a  non-confidential  basis prior to its  disclosure  to such
Recipient by the Newco Group or the other  parent,  (iii)  becomes  available to
such  Recipient on a  non-confidential  basis from a source other than the Newco
Group or any other  Recipient  unless such  Recipient  knows that such source is
bound  by  a   confidentiality   agreement  or  is  otherwise   prohibited  from
transmitting the information to such Recipient by a contractual obligation, (iv)
is independently  developed by such Recipient  without reference to confidential
information  received  from the Newco Group,  (v) is required to be disclosed by
Applicable  Law or legal  process,  or (vi) is required to be  disclosed  by any
listing agreement with, or the rules or regulations of, any securities  exchange
on which  securities of such  Recipient or any of its  Affiliates  are listed or
traded. In the case of a disclosure in the circumstances described in clause (v)
of the preceding  sentence,  the disclosing  Recipient  shall use its Reasonable
Best  Efforts to provide  Thistle BV and the other  parent  with  prompt  notice
thereof so that Thistle BV or the other  parent may seek a  protective  order or
other  appropriate  remedy.  If such  protective  order or other  remedy  is not
obtained,  the disclosing  Recipient  agrees to furnish only that portion of the
information  that it is legally required to do so and, at the request of Thistle
BV or the  other  parent,  shall  use its  Reasonable  Best  Efforts  to  obtain
assurances that confidential treatment will be accorded such information.

     18.11 Name of Thistle BV. The  chairman of the board of  directors  of each
parent shall,  prior to the Closing,  consult with each other and agree upon the
corporate name of Thistle BV to be adopted as of the Closing.

     18.12 Netherlands Tax Ruling. If either AT&T or BT fails to obtain a ruling
from the  Netherlands  Tax  Authorities  which  ensures  that  their  respective
contributions  of Assets  to the Newco  Group  will be exempt  from  Netherlands
capital tax under application of article 37 of the relevant  Netherlands Tax law
(i.e., Wet op Belastingen van Rechstverkeer) and Article 28 (Non-Discrimination)
of the  Convention  between the United  States of America and The Kingdom of the
Netherlands  for the Avoidance of Double  Taxation and the  Prevention of Fiscal
Evasion with respect to Taxes on Income  (December 18,  1992),  then the parties
agree to negotiate in good faith to secure an  alternative  mutually  acceptable
jurisdiction of incorporation (other than the U.S. or U.K.) for Thistle BV.

                                   ARTICLE 19
                      PRE-CLOSING ACQUISITION TRANSACTIONS

     19.1 Acquisition Transactions.

<PAGE>

     (a) This Section 19.1 shall apply to any businesses,  investments or assets
acquired by either parent or any of its Group Companies by merger,  acquisition,
business  combination or other transaction (an "Acquisition  Transaction") on or
after  the date of this  Agreement  and  prior to the  Closing  Date  which,  if
acquired after the Closing Date, would violate the provisions of Section 11.1 or
the second  sentence  of  Section  11.6 after  giving  effect to any  exceptions
thereto,  other than any of the  foregoing  acquired  pursuant  to an  agreement
initially executed and delivered prior to July 24, 1998 (collectively,  the "New
Assets"). If an Acquisition  Transaction involves New Assets and other assets or
the  acquisition  of an  interest  in a business  that owns New Assets and other
assets, this Article 19 shall apply only to the New Assets;  provided,  that, if
the acquired  interest in a business is a  non-Controlling  interest,  the party
making  such  Acquisition  Transaction  may elect to treat the  entirety of such
interest as New Assets in order to satisfy its  obligations  under this  Article
19.

     (b) In the case of any New Assets, the parents and the CEO shall, following
the Closing Date,  cooperate in a review of such New Assets and their  potential
value to the Newco  Group.  Unless the parents  agree to the  contrary,  the CEO
shall have the  authority  to make a  determination  to purchase  New Assets and
assume  related  liabilities  up to an  aggregate  Acquisition  Cost (as defined
below) of $25 million. If so determined by the CEO, Thistle BV or one or more of
the Newco  Subsidiaries  shall purchase for cash any such New Assets and Thistle
BV or one or more of the Newco Subsidiaries will assume any related  liabilities
approved by the CEO at a price (unless otherwise agreed by the applicable parent
and by Thistle BV through a decision of the Management  Board,  with DirectorCo,
as the sole director of the Management Board, acting pursuant to a majority vote
of each of the Class A Representatives and the Class B Representatives) equal to
the price paid to acquire such New Assets,  adjusted to reflect any  liabilities
not  assumed  by  Thistle  BV or  the  applicable  Newco  Subsidiary,  plus  the
applicable cost of funds of the parent or its Group Company attributable to such
purchase price for the period from the acquisition  thereof by the parent or its
Group  Company to the closing of the sale of the New Assets to Thistle BV or one
or more of the Newco  Subsidiaries  (such cost, the "Acquisition  Cost"). If the
CEO  decides not to purchase  the New  Assets,  unless the parents  agree to the
contrary, none of Thistle BV or any of the Newco Subsidiaries shall purchase any
such New Assets. The provisions of Section 15.3(c) shall be applicable,  mutatis
mutandis,  to any New  Assets and  related  liabilities  acquired  or assumed by
Thistle BV.

     (c) Any acquisition of New Assets with an Acquisition Cost in excess of $25
million, in a transaction or series of related  transactions,  shall require the
approval  of the  Management  Board  in  accordance  with  Section  3.5(e).  The
applicable  parent shall, or shall cause its applicable Group Company to, divest
any New Assets not so  acquired  by Thistle BV or any of the Newco  Subsidiaries
within one year following the Closing Date.

     (d) The parties will  cooperate to make any  purchases by Thistle BV or any
of the Newco  Subsidiaries  contemplated  by this Section  19.1 not  financially
coercive and efficient from a tax and accounting  perspective to the Newco Group
or the parent, or the parent of the Group Company,  that acquired the New Assets
and the parties will cooperate in structuring any such purchases.  Any purchases
of New Assets  described  in this  Section  19.1 shall be  pursuant  to mutually
acceptable stock or asset purchase agreements.

<PAGE>

     19.2 Obligation to Obtain Governmental Approvals.

     (a)  Notwithstanding  anything to the contrary in this Agreement other than
Section 19.4,  but including the  definition of "Best  Efforts" and  "Reasonable
Best Efforts,"  nothing herein shall prevent or restrict either parent or any of
its Group Companies from engaging in any Acquisition  Transaction after the date
hereof and prior to the Closing Date.

     (b) Any Acquisition  Transaction engaged in by a parent or any of its Group
Companies  after the date hereof and prior to the Closing  Date shall not affect
the application of Section 20.2(a),  20.2(b) or 20.2(c) or the obligation of the
parent,  or the  parent  of  the  Group  Company,  undertaking  the  Acquisition
Transaction  otherwise  to  continue  to use its Best  Efforts to obtain the Key
Governmental  Approvals for the  transactions  contemplated  by the  Transaction
Agreements  at the earliest  practicable  date  concurrently  with pursuing such
Acquisition Transaction.

     19.3 Material Acquisition Transaction.

     (a) This Section 19.3 shall apply to any Material Acquisition  Transaction.
A "Material Acquisition  Transaction" shall mean an Acquisition Transaction that
involves  the  acquisition  of a  Person  engaged  predominantly  in the  Global
Communications  Services  business or the Carrier Services business which either
(i)  derives  aggregate  annual  revenues  from such  business in excess of $500
million or (ii) owns or operates  Global Network  Facilities  with a fair market
value in excess of $250  million,  in either case as  determined by reference to
the most recently completed full fiscal year of such Person.

     (b) If a parent or any of its Group Companies (the "engaging party") enters
into any written  agreement  for a Material  Acquisition  Transaction,  it shall
promptly notify the other parent (the "non-engaging  party") in writing.  Within
60  days  following  receipt  of  such  notice  from  the  engaging  party,  the
non-engaging  party  shall be  entitled to seek  written  confirmation  from the
engaging party that it will continue to perform its  obligations to use its Best
Efforts  to  obtain  the  Key   Governmental   Approvals  for  the  transactions
contemplated  by the  Transaction  Agreements at the earliest  practicable  date
concurrently with pursuing such Material Acquisition  Transaction.  The engaging
party shall respond to such request for  confirmation  within 10 days  following
receipt  of a  request  for  written  confirmation.  If it  gives  such  written
confirmation,  then  it  must  perform  its  Best  Efforts  to  obtain  the  Key
Governmental  Approvals for the  transactions  contemplated  by the  Transaction
Agreements  at the earliest  practicable  date  concurrently  with pursuing such
Material Acquisition Transaction.

     (c) If the engaging  party does not confirm in writing to the  non-engaging
party that it will perform such  obligation  within 10 days after receipt of the
non-engaging  party's request for confirmation,  and thereafter,  diligently and
continuously  perform such obligation,  the non-engaging party shall be entitled
forthwith,  by prompt notice to the engaging  party, to terminate this Agreement
and the other Transaction Agreements.

     (d) If, on the  expiration  of the  18-month  period  provided  in  Section
20.2(a),  the Key  Governmental  Approvals  shall not have been obtained for the

<PAGE>

transactions contemplated by the Transaction Agreements,  the non-engaging party
shall have the right to  decide,  by giving  notice in  writing to the  engaging
party  on or  before  the  nineteenth  month  anniversary  of the  date  of this
Agreement,  whether or not it wishes to require both the AT&T Parties and the BT
Parties to  continue to be bound by the terms of this  Agreements  and the other
Transaction  Agreements  for a period  specified by it of up to an additional 12
months after the expiration of the 18-month  period  provided in Section 20.2(a)
or to terminate this Agreement and the other Transaction Agreements.

     (e) If the  non-engaging  party decides not so to terminate the Transaction
Agreements,  it may require the engaging party to use its Best Efforts to obtain
the  Key  Governmental  Approvals  for  the  transactions  contemplated  by  the
Transaction  Agreements  at the  earliest  practicable  date  concurrently  with
pursuing such Material Acquisition  Transaction and shall itself continue to use
its  Best  Efforts  to  obtain  the  Key  Governmental  Approvals.  If  the  Key
Governmental Approvals have still not been obtained on the date specified by the
non-engaging  party  pursuant to Section  19.3(d),  either parent shall have the
right,  exercisable  by giving written notice to the other parent within 30 days
thereafter, to terminate this Agreement and the other Transaction Agreements.

     (f) If the  non-engaging  party  shall  not have  exercised  its  rights to
terminate the  Transaction  Agreements  prior to the end of the 30-month  period
following the date hereof, and if the Key Governmental  Approvals have still not
been  obtained by the end of such  30-month  period and such failure was in some
meaningful  part caused by the engaging  party's  undertaking  of such  Material
Acquisition Transaction,  unless the non-engaging party is in material breach of
its obligations  under this Agreement or any other  Transaction  Agreement,  the
engaging party shall pay to the non-engaging party, following the termination of
the Transaction  Agreements at the end of such 30-month period, all of the fees,
charges, costs, disbursements and expenses,  including travel, lodging and other
expenses, of the non-engaging party and its employees, agents,  representatives,
investment bankers, counsel, including charges for in-house counsel, accountants
and other advisers  incurred in connection  with the negotiation and preparation
of this Agreement and the Transaction Agreements and all prior agreements,  term
sheets,  letters of intent and other documents that have been superseded by this
Agreement,  including the Term Sheet, and all other  activities  relating to the
transactions  contemplated by the Transaction Agreements (excluding the purchase
of the  Purchased  Shares) up to an aggregate  maximum of $150  million.  If the
Transaction Agreements are terminated at the end of such 30-month period, within
30 days after the expiration of such 30-month  period,  the  non-engaging  party
shall deliver to the engaging party a statement,  in reasonable  detail,  of all
such  fees,  charges,  costs,  disbursements  and  expenses.  Within  five  days
following delivery of such statement,  the engaging party shall make payment, by
wire transfer of same day funds, of such amount to the non-engaging party.

     (g) If the  Transaction  Agreements are not  terminated  under this Section
19.3 and the Closing  shall occur,  the  provisions  of Section 19.1 shall apply
with respect to New Assets involved in the Material Acquisition Transaction.

     19.4 No  Acquisition  Transactions.  After the date of this  Agreement  and
prior to the Closing  Date,  neither  parent shall be permitted to undertake any
Material  Acquisition  Transaction if (a) the principal business and predominant
source of revenue of such  Person or assets is derived  from the offer,  sale or
distribution of Global Business  Communications  Services, and (b) a substantial
portion  of the  assets  of such  Person or such  assets,  as  applicable,  that
comprise New Assets could not  reasonably  be expected to be acquired by Thistle
BV for regulatory or antitrust reasons.

<PAGE>

                                   ARTICLE 20
                                     CLOSING

     20.1 Closing.

     (a) The AT&T Parties,  on the one hand,  and the BT Parties and Thistle BV,
on the other hand,  shall  promptly  notify the other  parties  upon  receipt of
notice  that all Key  Governmental  Approvals  required  to be  obtained  by the
notifying parties in connection with the transactions  contemplated  hereby have
been  obtained.  Thereafter,  provided  that all other  conditions  set forth in
Article 21 have been  satisfied or waived,  the closing (the  "Closing")  of the
transactions  contemplated hereby shall take place simultaneously at the offices
of Paul, Weiss, Rifkind,  Wharton & Garrison,  1285 Avenue of the Americas,  New
York,  New York, at 10:00 a.m.,  New York City time and  Houthoff,  Parnassusweg
126, 1076 AT Amsterdam, The Netherlands,  at a date agreed to by the parties but
in any  event not later  than 10  Business  Days  following  the  latter of such
notices  from either the AT&T  Parties,  on the one hand,  or the BT Parties and
Thistle BV, on the other hand, has been given,  or at such other time or date as
the  parties  shall  agree  upon in  writing.  The time and date upon  which the
Closing occurs is referred to herein as the "Closing Date."

     (b) At the Closing,  upon the terms and subject to the conditions set forth
herein,  each  party  will and will  cause its  Affiliates  to take the  actions
described  in Article 21 to be taken at the  Closing and this  Section  20.1 and
execute and deliver such other  instruments  and take all such other  reasonable
actions as are  necessary to consummate  the  transactions  contemplated  by the
Transaction  Agreements  to be  consummated  by it  and  its  Affiliates  at the
Closing.

     (c) At the Closing,  upon the terms and subject to the conditions set forth
herein,  each of the parties shall,  and shall cause its Affiliates and, insofar
as within its power,  each of the Newco  Subsidiaries to, enter into each of the
Transaction  Agreements  which have not been  entered  into prior to the Closing
Date to which such party, its Affiliates or such Newco  Subsidiary,  as the case
may be, are parties, including the following Transaction Agreements:
                           
     (i) Asset Contribution Agreements;

     (ii) International Traffic Service Agreements;

     (iii) Distribution Agreements (Newco Products);

     (iv) Distribution Agreements (Parent Products);

     (v) Supply Agreements (Parent Components);

     (vi) Investment Fund Agreement; and

     (vii) Employee Matters Agreement.

     (d) At such time prior to the  Closing as will  enable BT  Holdings to take
the  actions and achieve the  objectives  described  herein,  BT Holdings in its
capacity  as the sole  shareholder  of  Thistle BV shall  adopt a  shareholder's
resolution  in the form of Exhibit M approving  the amendment of the articles of
association  of Thistle BV in the form as set forth in Exhibit I. Promptly after

<PAGE>

the adoption of such resolution, BT Holdings shall apply for a declaration of no
objections  (verklaring  van qeen  bezwaar)  from the Ministry of Justice of The
Netherlands  with respect to such  amendment and shall use its  Reasonable  Best
Efforts to obtain such  declaration  of no objections as promptly as practicable
thereafter.

     (e) At the Closing:

     (i) BT Holdings in its capacity as the sole shareholder of Thistle BV shall
adopt a shareholder's resolution in the form of Exhibit N approving the issuance
of the shares of  Thistle BV to be issued at the  Closing  and the  transfer  of
Thistle BV shares to VLT as contemplated by Section 20.1(e)(iii).

     (ii)  Thistle  BV shall  issue  an equal  number  of  shares  to each of BT
Holdings  and VLT and shall  receive good title  thereto  pursuant to a notarial
deed of issuance substantially in the form of Exhibit L.

     (iii) BT  Holdings  shall  transfer  such number of shares of Thistle BV to
AT&T or its Affiliate as shall be necessary to cause AT&T or its Affiliate to be
the  holder of the same  number of shares of Thistle  BV as BT  Holdings,  for a
total  purchase price equal to the aggregate par value of such shares payable at
Closing.  Such  transfer  shall effect good title and be effected  pursuant to a
notarial deed of transfer  among such Affiliate of AT&T, BT Holdings and Thistle
BV substantially in the form of Exhibit O.

     20.2  Termination  Prior to  Closing  by Either  Party.  Either  parent may
terminate  this  Agreement  and the other  Transaction  Agreements  prior to the
Closing by providing written notice thereof to the other parent if:
                  
     (a) the Key  Governmental  Approvals are not obtained within the time frame
set forth in Section 18.4(a);  provided,  however,  that either parent, if it is
not in material  breach of its  obligations  in Section  18.4(a) to use its Best
Efforts to obtain the Key Governmental Approvals, may extend the 12 month period
set forth in Section  18.4(a) by up to two additional  three month  periods,  in
each  instance,  by providing  written  notice to the other parent no later than
five days prior to the expiration of either the 12-month period or the expiry of
the first three month extension, as applicable; provided, further, however, that
the aggregate total number of such three month  extensions by both parents shall
not exceed two;

     (b) after the date of this  Agreement,  it becomes highly probable that the
Key Governmental  Approvals will not be obtained without  Burdensome  Conditions
adversely  affecting  the Newco Group or the parent  seeking to terminate by the
eighteenth  month  anniversary  of the  date of this  Agreement,  so long as the
failure to satisfy  such  condition  does not result  from a breach by the party
seeking to terminate of its obligations under any Transaction Agreement;

     (c) a Key  Governmental  Approval  with a  Burdensome  Condition  adversely
affecting  the Newco Group or the parent  seeking to terminate  has been granted
for the transactions contemplated by the Transaction Agreements and is final and
not subject to further appeal;

     (d) an event(s) or development(s) shall occur or fail to occur with respect
to the other parent or Thistle BV that would have a Material  Adverse  Effect on
the proposed  Venture  Business or on the ability of the other parent to perform
its obligations under the Transaction Agreements;

<PAGE>

     (e) (i) a Change of Control  with  respect to the other parent shall occur,
(ii) the other  parent or any of its Group  Companies,  as of the Closing  Date,
would not be in compliance  with Section 11.1 or the second  sentence of Section
11.6  (assuming such Section were then fully in effect) and has failed to commit
to the non-breaching  party that it will cure any such default diligently and in
good faith and in any event on or prior to the first  anniversary of the Closing
Date,  (iii)  there shall exist a  Triggering  Person with  respect to the other
parent,  unless such other  parent is entitled to cure such event in  accordance
with  Section  13.3 and such  other  parent  shall have  committed  that it will
eliminate  the  circumstances  causing  the  Triggering  Person  to be the  same
diligently and in good faith and in any event prior to the first  anniversary of
the Closing Date,  or (iv) there shall exist a Covered  Investor with respect to
the other party that is a Major Competitor of the party seeking to terminate the
Transaction Agreements;

     (f) any final and binding order, judgment, injunction, award or decree that
is not subject to further appeal shall have been entered that enjoins, restrains
or prohibits the consummation of the transactions  contemplated hereby or by the
Transaction  Agreements  or puts in doubt the validity of this  Agreement or any
other Transaction Agreement in any material respect;

     (g) any  representation  or warranty of the other parent  contained in this
Agreement  or the other  Transaction  Agreements,  to the  extent  qualified  by
materiality,  a Venture Business Material Adverse Effect or an AT&T GCS Business
MAE or BT GCS Business MAE, as the case may be, fails to be true and correct or,
to the extent not so  qualified,  fails to be true and  correct in all  material
respects,  or the other  parent has failed to perform or comply in all  material
respects with any of its covenants or agreements contained in this Agreement, in
the case of any of the  foregoing,  which failure cannot be cured on or prior to
the  Closing  Date and has not been  waived by the  parent  that is  seeking  to
terminate the Transaction Agreements; or

     (h) if the conditions set forth in Section 21.1(a)(iv) or (v) have not been
fulfilled by the Closing Date.

     20.3 Termination Relating to Non-Compete.

     (a) Nothing in this Section 20.3 shall limit,  restrict or otherwise affect
the rights of the  parents to  terminate,  or not  consummate  the  transactions
contemplated by, the Transaction Agreements for the reasons set forth in Section
20.2 or Article 21 or affect any rights of either  parent under  Section 18.3 or
18.4(a),  and each  parent  shall be  entitled  to  exercise  any of its  rights
thereunder  prior  to,  concurrently  with  or  after  the  application  of  the
procedures set forth in this Section 20.3.

     (b)  The  parents  agree  that,  in all  events,  except  as may  arise  in
accordance with this Section 20.3, the provisions of Section 11.1 and the second
sentence of Section 11.6,  including any applicable  exceptions  thereto,  shall
remain  reciprocal  in terms of duration and scope with respect to each parent's
Home  Territory.  If any relevant  Governmental  Body imposes or requires,  as a
condition  to the  grant  of its Key  Governmental  Approval,  any  restriction,
modification,  limitation or reduction (any of the foregoing,  a "Reduction") of
the  non-compete  provisions  of Section 11.1 or the second  sentence of Section
11.6 or any applicable  exceptions thereto  applicable to any Home Country,  the
European  Region,  the NAFTA Region or a Home  Territory,  the parent  receiving
notice of any such  imposition or  requirement  for any such  Reduction from the
Governmental Body shall promptly notify the other parent in writing.

<PAGE>

     (c) The parent  that would  benefit  from the  Reduction  (the  "Advantaged
Party") shall, within 10 Business Days after the giving or receipt of the notice
of the Governmental  Body's  imposition or requirement,  either (x) exercise any
applicable  rights under Section 18.4(a),  20.2 or Article 21, or (y) notify the
other parent (the "Disadvantaged Party") in writing (i) whether it will agree to
make a  corresponding  change to the relevant  provisions of Section 11.1 or the
second  sentence of Section 11.6 or any applicable  exceptions  thereto,  as the
case may be, with respect to its Home Country or Home Territory, or the European
Region or NAFTA  Region,  as the case may be, so that the  provisions of Section
11.1  or the  second  sentence  of  Section  11.6 or any  applicable  exceptions
thereto,  as the case may be, will be the same for both  parents with respect to
their Home  Countries and their and the other  parent's  Home  Territory and the
same for AT&T in the NAFTA  Region  as for BT in the  European  Region,  or (ii)
whether it declines to do so.

     (d) If the  Advantaged  Party so elects to make the  corresponding  change,
then,  subject  to  Section  20.3(a),  the  Reduction  will not in and of itself
entitle  the  Disadvantaged  Party to  terminate  this  Agreement  and the other
Transaction Agreements.

     (e) If the Advantaged Party declines to make the corresponding  change, the
Disadvantaged Party shall have the right, in addition to any other rights it may
have  hereunder,  by providing  written notice  thereof to the Advantaged  Party
within 10 Business Days after receipt of notice from the  Advantaged  Party,  to
terminate this Agreement and the other Transaction Agreements.

     20.4  Termination  Otherwise Than  Permitted.  If either parent attempts to
terminate  this  Agreement  and the other  Transaction  Agreements  prior to the
Closing other than as permitted pursuant to Section 1.6(b),  19.3, 20.2 or 20.3,
such action shall  constitute a material  breach of this Agreement and the other
parent  shall  have all rights and  remedies  available  to it in law or equity,
including the right to seek specific  performance of the obligations  under this
Agreement of the party  attempting  to  terminate  the  Transaction  Agreements.
Specific performance shall be a non-exclusive remedy for such breach.

     20.5 Effect of Termination.

     (a) If this Agreement and the other  Transaction  Agreements are terminated
pursuant to Section  1.6(b),  19.3,  20.2 or 20.3,  this Agreement and the other
Transaction  Agreements  shall  forthwith cease to have effect between and among
the parties and all further  obligations of the parties shall terminate  without
further  liability,  except that (i) such  termination  shall not  constitute  a
waiver of any rights any party may have by reason of the material failure of any
material  representation of the other party in this Agreement (but excluding the
representations  and  warranties  in Sections  17.1(p) and 17.2(p)) to have been
true and correct as of the date of this Agreement,  a material breach of Section
18.1(c)  or a willful  and  intentional  breach by any other  party of any other
material covenant contained in this Agreement, (ii) the covenants and agreements
contained  in  Sections  25.2 and 25.3 shall  survive  for a period of six years
following the date of  termination  (other than with respect to claims that have
been made and are pending  resolution as of such date,  with respect to which it
shall survive without limit),  and the other covenants and agreements  contained
in Sections 18.10 and 28.3 and the Confidentiality Agreements shall survive such
termination without limitation as to time.

<PAGE>

     (b) Except as provided in Section  20.5(a),  but  notwithstanding  anything
herein  to  the  contrary,  all  representations,   warranties,   covenants  and
agreements  contained  herein  shall be of no further  force or effect after the
termination of this Agreement pursuant to Section 1.6(b), 19.3, 20.2 or 20.3.

                                   ARTICLE 21
                              CONDITIONS TO CLOSING

     21.1 Condition to Each Party's Obligations.  The obligations of each of the
parties and their  Affiliates to make their  Contributions  described in Section
15.1 and the  obligations of the parties and their  Affiliates to enter into the
other  Transaction  Agreements not  theretofore  executed and delivered to which
they are parties and otherwise to consummate the  transactions to be consummated
by them at Closing are subject to the  fulfillment  to the  satisfaction  of, or
waiver  by,  each of AT&T  and BT,  as of the  Closing  Date,  of the  following
conditions:

     (a) Governmental Approvals.

     (i) All notifications required pursuant to the HSR Act for the transactions
contemplated  hereby shall have been made, and the applicable waiting period and
any  extensions  thereof  shall have  expired  or been  terminated  without  the
imposition of any Burdensome  Condition  adversely  affecting the Newco Group or
the parent seeking to rely on this condition.

     (ii) The European Commission,  pursuant to the EU Merger Regulations, shall
have granted approval of this Agreement and each other Transaction Agreement and
the transactions  contemplated hereby and thereby, without the imposition of any
Burdensome  Condition  adversely affecting the Newco Group or the parent seeking
to rely on this condition.

     (iii) An FCC Order shall have been  obtained  without the  imposition  of a
Burdensome  Condition  adversely affecting the Newco Group or the parent seeking
to rely on this  condition,  which  has not been  revoked  or  stayed  as of the
Closing Date.

     (iv) All other  Governmental  Approvals  required  to be  obtained  for the
consummation of the transactions  contemplated  hereby shall have been obtained,
all  applicable  pre-consummation  waiting  periods shall have  expired,  and no
Burdensome  Condition  adversely affecting the Newco Group or the parent seeking
to rely on this condition shall have been imposed by any Governmental  Body with
respect  to  the  transactions  contemplated  hereby,  except  for  Governmental
Approvals  and waiting  periods the failure of which to obtain or satisfy  would
not,  individually  or in the  aggregate,  be  reasonably  likely  to  impose  a
Burdensome  Condition  adversely affecting the Newco Group or the parent seeking
to rely on this  condition or  materially  and  adversely  affect the ability of
either the AT&T Parties or the BT Parties to perform their obligations hereunder
or under the other Transaction Agreements.

     (v) No action shall have been taken by any Governmental  Body to rescind or
withdraw any of the Key  Governmental  Approvals or any  Governmental  Approvals
contemplated by Section 21.1(a)(iv).

<PAGE>

     (b) No Injunctions. No order, judgment,  injunction,  award or decree shall
have been entered or threatened by any Governmental Body that enjoins, restrains
or prohibits the consummation of any of the transactions  contemplated hereby or
by the Transaction Agreements or puts in doubt the validity of this Agreement or
any other Transaction Agreement in any material respect.

     (c) Transaction  Agreements.  The Transaction  Agreements listed in Section
20.1(c) shall have been  executed and  delivered by the parties  thereto and the
Charter Documents shall have become effective.

     (d) Asset Purchase  Agreements.  The parents or their Affiliates shall have
executed  and  delivered  one or more  stock or  asset  purchase  agreements  as
contemplated by Section 15.5(c).

     (e) Accountants'  Statement.  PricewaterhouseCoopers  or another  qualified
accounting  firm  acceptable to the parents  shall have issued the  Accountants'
Statement.

     21.2 Conditions to the Obligations of AT&T. The obligations of AT&T and the
other AT&T Sellers to make their  Contributions  to the Newco Group  pursuant to
Section 15.1 and the  obligations  of each of AT&T and its  Affiliates  to enter
into the other  Transaction  Agreements  to which it is a party and to otherwise
consummate  the  transactions  that are to be consummated by them at the Closing
are subject to the fulfillment to the satisfaction of, or waiver by, AT&T, as of
the Closing  Date,  of the  following  additional  conditions:  (a)  Accuracy of
Representations and Warranties. The representations and warranties by BT and its
Affiliates  in each  Transaction  Agreement  to which  they are a party,  to the
extent qualified by materiality, a Venture Business Material Adverse Effect or a
BT GCS  Business  MAE,  shall be true and  correct  and,  to the  extent  not so
qualified,  shall be true and correct in all material respects,  in each case as
of the date they were made and as of the Closing  Date,  as if made on and as of
the Closing Date, except for  representations and warranties that are made as of
a  specified  date which need be true and  correct,  or true and  correct in all
material  respects,  as the  case  may  be,  only  on the  specified  date.  The
representations  and  warranties  set  forth  in  Section  17.2(q)  that are not
qualified  by a BT GCS  Business  MAE shall  treated  for the  purposes  of this
Section 21.2(a) as if so qualified.

     (b) Performance of Obligations.  BT and its Affiliates shall have performed
or  complied  in all  material  respects  with their  respective  covenants  and
agreements  contained in the Transaction  Agreements required to be performed or
complied with by BT and its Affiliates on or prior to the Closing Date.

     (c) Delivery of Certificates of BT. BT and BT Holdings shall have delivered
to AT&T customary closing certificates and documents,  in each case signed by an
officer or officers with the authority to bind such party (in each case dated as
of the Closing Date),  and such other  certificates  or documents as AT&T or its
counsel may  reasonably  request  evidencing  the  satisfaction  in all material
respects of the conditions to Closing.

     (d) Share  Certificates.  AT&T or its Affiliate  shall have received  share
certificates  or other  evidences  of its  interests  in  DirectorCo,  the Newco
Services  Company and the Newco  Subsidiaries  as  described in Schedule 2.2 and
shall have been satisfied that such shares and other equity  interests have been
validly issued and, in the case of shares,  fully paid and non-assessable,  free
and clear of all Liens.

<PAGE>

     (e) Opinions of Counsel.  AT&T shall have received such reasonable opinions
and certificates as are requested by it on reasonable notice to BT.

     21.3  Conditions to the  Obligations  of BT. The  obligations of BT and the
other BT Sellers to make their  Contributions  to the Newco  Group  pursuant  to
Section 15.1 and the  obligations of each of BT and its Affiliates to enter into
the  other  Transaction  Agreements  to  which  it is a party  and to  otherwise
consummate  the  transactions  that are to be consummated by them at the Closing
are subject to the fulfillment to the  satisfaction  of, or waiver by, BT, as of
the Closing Date, of the following additional conditions:

     (a) Accuracy of Representations  and Warranties.  The  representations  and
warranties  by AT&T and its  Affiliates in each  Transaction  Agreement to which
they are a party,  to the extent  qualified by materiality,  a Venture  Business
Material  Adverse  Effect or an AT&T GCS Business MAE, shall be true and correct
and, to the extent not so  qualified,  shall be true and correct in all material
respects, in each case as of the date they were made and as of the Closing Date,
as if  made  on and as of the  Closing  Date,  except  for  representations  and
warranties that are made as of a specified date, which need be true and correct,
or true and correct in all  material  respects,  as the case may be, only on the
specified date. The  representations and warranties set forth in Section 17.1(q)
that are not  qualified  by an AT&T GCS  Business  MAE shall be treated  for the
purposes of this Section 21.3(a) as if so qualified.

     (b)  Performance  of  Obligations.  AT&T  and  its  Affiliates  shall  have
performed or complied in all material  respects with their respective  covenants
and agreements contained in the Transaction  Agreements required to be performed
or complied with by AT&T and its Affiliates on or prior to the Closing Date.

     (c) Delivery of  Certificates of AT&T. AT&T and VLT shall have delivered to
BT  customary  closing  certificates  and  documents,  in each case signed by an
officer or officers with the authority to bind such party (in each case dated as
of the Closing  Date),  and such other  certificates  or  documents as BT or its
counsel may  reasonably  request  evidencing  the  satisfaction  in all material
respects of the conditions to Closing.

     (d) Share  Certificates.  BT or its  Affiliate  shall have  received  share
certificates  or other  evidences  of its  interests  in  DirectorCo,  the Newco
Services  Company and the Newco  Subsidiaries  as  described in Schedule 2.2 and
shall have been satisfied that such shares and other equity  interests have been
validly issued and, in the case of shares,  fully paid and non-assessable,  free
and clear of all Liens.

     (e) Opinions of Counsel.  BT shall have received such  reasonable  opinions
and certificates as are requested by it on reasonable notice to AT&T.

                                   ARTICLE 22
                            BREACH; EVENTS OF DEFAULT

     22.1 Breach.  Except as otherwise  expressly provided herein, a party shall
be in breach of this  Agreement  if it fails fully to perform,  or suspends  its
performance of, its  obligations  hereunder and if it fails to cure such failure
or suspension  within 30 days  following  receipt of written notice thereof from
one of the other parties.

<PAGE>

     22.2  Remedies for Breach.  In addition to any other  remedies set forth in
this  Agreement,  the remedies for any breach of this  Agreement  shall  include
damages and injunctive relief,  including specific  performance.  The rights and
remedies  provided in this Agreement are cumulative and are not exclusive of any
rights or remedies that any party may otherwise have at law or in equity.

     22.3 Events of Default.  Following the Closing,  except as may otherwise be
agreed by the parents, an "Event of Default" with respect to a parent shall have
occurred upon the occurrence of any of the following:

     (a) such parent's material breach of this Agreement (other than a breach of
Section 11.1 or the second  sentence of Section  11.6) or any other  Transaction
Agreement,  which breach shall remain  uncured  after the 30-day cure period set
forth in  Section  22.1 if the  impact of such  breach on the Newco  Group is so
material as to go to the essence of the Venture Business;

     (b) a Change of Control shall have occurred with respect to such parent;

     (c) such  parent  shall be in breach of  Section  11.1 or clause (a) of the
second sentence of Section 11.6 and either (i) such breach is willful,  repeated
and significant, or (ii) such parent shall not have cured such breach within the
one year  period  after  notice  thereof  from the other  parent,  and where the
Revenue  Limitation  in Section  11.3 or 11.4 (x)  applies  with  respect to the
violating  activities,  the aggregate total revenues derived from such violating
activities  exceeds $400 million  (including  the amount  covered by the Revenue
Limitation)  or (y) does not apply to the  violating  activities,  the aggregate
total revenues from such violating activities exceeds $200 million, and where in
both clauses (x) and (y), (1) the "aggregate total revenues" shall be calculated
on a Pro Rata  Basis,  and (2) the Dollar  amounts  set forth  therein  shall be
subject to adjustment as provided in Section 11.16;

     (d) such parent shall be in breach of clause (b) of the second  sentence of
Section  11.6 and shall not have cured such  breach  within the one year  period
after notice thereof from the other parent; or

     (e) there shall exist any Covered Investor with respect to such parent that
is a Major  Competitor  of the other parent or there shall have been a Change of
Control  involving  such  parent by a Major  Competitor  of the other  parent (a
"Covered Investor Breach").

     22.4 Confirmation of Cure. If, prior to the expiration of the one year cure
period  provided in Section  22.3(c) or 22.3(d),  the breaching  party does not,
when requested in writing by the non-breaching  party, confirm in writing within
five Business Days after receipt of such request that it will  diligently and in
good faith cure the breach or, thereafter, does not diligently and in good faith
undertake to effect such cure, such breach shall  constitute an Event of Default
prior to the expiration of any such cure period.  If the breaching party does so
commit to cure the  breach,  the  non-breaching  party shall be entitled to rely
thereon,  and, in addition to its other rights and remedies,  the  non-breaching
party shall be entitled to payment for any damages resulting from any failure by
the breaching party to cure any such breach.

<PAGE>

                                   ARTICLE 23
                          TERMINATION OF JOINT VENTURE;
                        CONSEQUENCES OF EVENT OF DEFAULT

     23.1 No  Dissolution.  Each of Thistle BV,  DirectorCo,  the Newco Services
Company and the Newco Subsidiaries shall continue without  interruption until it
is dissolved or terminated in accordance with this Agreement.

     23.2 Performance Test Shortfall.

     (a) If a Performance  Test  Shortfall  shall occur,  either parent shall be
entitled  to  deliver a written  notice (a  "Performance  Notice")  to the other
parent at any time prior to the 180th day  following  the end of the eighth full
Fiscal Year to  initiate  the  dissolution  and winding up of the Newco Group in
accordance  with the  provisions of this Section;  provided,  however,  that any
Performance  Notice  delivered  prior to the end of the eighth  full Fiscal Year
shall be revocable until the end of such full Fiscal Year.

     (b) If a Performance  Notice has been  delivered  and not then revoked,  it
shall commence a two year transition  period  beginning at the later of the last
day of the  eighth  full  Fiscal  Year or the date  the  Performance  Notice  is
delivered if such Notice is delivered  following the last day of the eighth full
Fiscal Year in accordance with Section 23.2(a) (the "Transition Period"). Unless
mutually agreed by the parents, the parents shall, during the Transition Period,
cause the business  and affairs of the Newco Group to be dissolved  and wound up
in accordance with Section 23.9.

     (c) During the Transition  Period,  each party agrees to honor and to cause
its Affiliates to honor all obligations under the other Transaction  Agreements,
subject to any exceptions set forth therein.

     (d)  During  the  Transition  Period,  the  parent  that has  received  the
Performance Notice shall be entitled to appoint an additional  Representative to
the  DirectorCo  Board and to elect to cause a Distribution  of Netco,  in which
case the  provisions  of  Schedule  13.2  shall  apply and the  parent  that has
delivered  the  Performance  Notice shall bear any Taxes  arising in  connection
therewith (it being  understood that such parent may elect none,  either or both
of such alternatives).

     (e) If a parent delivers a Performance Notice, the provisions of clause (b)
of the second sentence of Section 11.6 shall, effective upon the last day of the
tenth full fiscal year of the Newco Group, be of no further force or effect with
respect to either parent and its Group Companies and the remaining provisions of
Article 11 shall be of no further  force or effect with respect to either parent
and its Group Companies on the completion of the dissolution of the Newco Group;
provided,  however,  that,  during the  Transition  Period either parent and its
Group  Companies may undertake such  activities as are necessary or advisable to
prepare  itself to provide Global  Communications  Services after the Transition
Period.

     23.3 Change of Control Termination.

     (a) Upon the  occurrence  of a Change of  Control  with  respect  to either
parent,   such  parent  shall  immediately  notify  the  other  parent  of  such
occurrence.

<PAGE>

     (b) Upon the  occurrence  of a Change of Control  with  respect to a parent
(the "subject party"), the other parent (the "non-subject party") shall have the
right,  but not the  obligation,  within 90 days following its becoming aware of
the occurrence of the Change of Control,  whether by notice  pursuant to Section
23.3(a) or otherwise, to elect, by written notice delivered to the subject party
(the "Put  Notice"),  to require the subject  party to purchase all but not less
than all of the non-subject  party's shares or other equity interests in Thistle
BV,  DirectorCo and the Newco Services  Company and all but not less than all of
its shares or other equity  interests in the Newco  Subsidiaries  (collectively,
the "Put  Shares",  and such right to require the subject  party to purchase the
Put  Shares,  the "Put") at a purchase  price equal to 110% of their fair market
value, determined in accordance with Section 23.7(a).

     (c) The  provisions of Sections  23.7(b) and (c) shall apply to the closing
of the sale and purchase of the Put Shares.

     (d) If a non-subject party delivers a Put Notice, the provisions of Article
11 shall,  effective upon the closing of the sale and purchase of the Put Shares
or, if earlier, the first anniversary of the date of delivery of the Put Notice,
be of no further  force or effect  with  respect to either  parent and its Group
Companies.

     23.4 Termination for Material Breach.

     (a) If an Event of Default  described in Section  22.3(a)  shall occur with
respect to a parent (the  "breaching  party"),  the other parent (the "complying
party")  shall  have the right to elect by  delivering  notice in writing to the
breaching party (the "Election Notice"),  within 60 days after the expiration of
the 30-day cure period described in Section  22.3(a),  either (i) to require the
breaching  party  to sell all but not less  than  all of the  breaching  party's
shares  or other  equity  interests  in  Thistle  BV,  DirectorCo  and the Newco
Services  Company  and all but not less than all of its  shares or other  equity
interests in the Newco Subsidiaries  (collectively,  the "Call Shares", and such
right to require the breaching party to sell the Call Shares (the "Call") to the
complying  party at a purchase  price  equal to 90% of their fair  market  value
determined in  accordance  with Section  23.7(a),  or (ii) to dissolve the Newco
Group.

     (b) If the  complying  party  elects to require a sale and  purchase of the
Call  Shares,  the  provisions  of  Sections  23.7(b) and (c) shall apply to the
closing of such sale and purchase.

     (c) If the complying  party elects to dissolve the Newco Group,  the period
of  dissolution  shall,  subject to compliance  with mandatory  requirements  of
Applicable  Law, be no longer than two years from the  commencement  thereof and
the  provisions of Section 23.9 shall apply to a dissolution  of the Newco Group
initiated under this Section 23.4.

     (d) In the  event of the  sale  and  purchase  of the  Call  Shares  or the
dissolution  of the Newco Group under this Section 23.4,  (i) effective upon the
date of delivery by the complying party of an Election Notice, the provisions of
Article 11 shall be of no further  force or effect with respect to the complying
party and its Group  Companies,  and (ii) if the complying  party has elected to

<PAGE>

purchase  the Call Shares,  effective  upon the closing of the sale and purchase
thereof or, if  earlier,  the first  anniversary  of the date of delivery of the
Election  Notice,  the  provisions of Article 11 shall be of no further force or
effect with respect to the breaching party and its Group Companies,  or (iii) if
the complying party has elected to dissolve the Newco Group,  effective upon the
completion of the  dissolution of the Newco Group,  the provisions of Article 11
shall be of no further force or effect with respect to the  breaching  party and
its Group Companies.

     (e) Without  limiting the  foregoing,  if an Event of Default  described in
Section 22.3(a) arises in connection  with a Change of Control,  the parent that
is not subject to the Change of Control  shall also have the rights set forth in
Section 23.3.

     23.5 Termination for Non-Compete Breaches and Covered Investor Breaches.

     (a) Upon the occurrence of a Covered Investor  Breach,  the breaching party
shall immediately  notify the other parent of such occurrence.  The other parent
shall be the non-breaching party for the purposes of Sections 23.5 and 23.6.

     (b) If an Event of Default  described in Section 22.3(c),  (d) or (e) shall
occur,  the  non-breaching  party  shall  have the  right to elect by  notice in
writing (the "Breach  Notice") to the  breaching  party within 90 days after the
end of the one year cure period set forth in Section  22.3(c)(ii)  or (d), or at
any time  after the  occurrence  of the Event of  Default  described  in Section
22.3(c)(i), if any, or within 90 days of its becoming aware of the occurrence of
the Covered  Investor  Breach,  whether by notice pursuant to Section 23.5(a) or
otherwise,  in the case of a Covered  Investor  Breach,  to  dissolve  the Newco
Group.
                  
     (c) If the  non-breaching  party elects to dissolve  the Newco  Group,  the
dissolution shall be completed as soon as practicable but in any event,  subject
to compliance  with mandatory  requirements  of Applicable Law, within two years
following the date of the Breach  Notice.  The  provisions of Section 23.9 shall
apply to a dissolution of the Newco Group initiated under this Section 23.5.

     (d) If the  non-breaching  party shall duly  deliver a Breach  Notice under
Section  23.5(b),  until the  consummation of any such  dissolution of the Newco
Group, the non-breaching party shall have the rights set forth in Section 13.2.

     (e) The  remedies  set forth in this  Section 23.5 shall be in addition to,
and not in lieu of, any other  remedies  that the  non-breaching  party may have
under law or equity or which may be provided for elsewhere in this Agreement.

     (f) To determine  whether an Event of Default under Section  22.3(c) or (d)
or a Covered Investor Breach has occurred,  a non-breaching  party may refer the
matter to the Wise  Counselor in accordance  with the  provisions of Article 24.
The  non-breaching  party shall  request the Wise  Counselor  to make his or her
determination  within 20 days after the matter has been  referred to him or her.
The non-breaching party may rely on the determination of the Wise Counselor that
such an Event of Default or Covered  Investor  Breach has  occurred  in order to
exercise its rights under this Section 23.5.

<PAGE>

     (g) Article 11 shall be of no further  force or effect with  respect to (i)
the non-breaching  party and its Group Companies upon the occurrence of an Event
of Default  under  Section  22.3(c) or (d) or,  subject  to Section  23.6(a),  a
Covered  Investor  Breach,  and (ii) the breaching party and its Group Companies
upon the completion of the dissolution of the Newco Group.

     23.6 Additional Provisions Relating to a Covered Investor Breach.

     (a) Within 30 days after a  definitive  agreement  has been  executed for a
transaction  that  would  result  in a Covered  Investor  Breach  (the  "Covered
Transaction"),  the parent in respect of which the Covered Investor Breach shall
occur (the "Affected Party") shall notify the non-breaching party and Thistle BV
of whether it intends to cure such breach.  If the Affected  Party fails to give
such  notice or elects not to cure the  breach,  then  notwithstanding  that the
Covered  Transaction  shall  not  have  been  consummated,   and  may  never  be
consummated, (x) the breach of Article 11 that would occur upon the consummation
of the Covered  Transaction shall be deemed to have occurred upon the earlier of
(the  "Effective  Date")  (i) the  expiration  of such 30 day period or (ii) the
giving of  notice  by the  Affected  Party  that it does not  intend to cure the
breach,  (y) upon the Effective  Date,  the  non-breaching  party shall have the
right to exercise  its rights under  Section  23.5,  and (z) upon the  Effective
Date,  Article 11 shall be of no  further  force or effect  with  respect to the
non-breaching party and its Group Companies.

     (b)  Notwithstanding  anything to the contrary contained herein, so long as
the  Affected  Party and its Group  Companies  shall  elect to, and do, cure the
breach of Article 11 within six months  after the  consummation  of the  Covered
Transaction, then no breach of Article 11 shall be deemed to have occurred. Upon
the  delivery by the  Affected  Party of its notice to elect to cure the breach,
from the date of the giving of such notice until the expiration of the six month
cure  period or, if  earlier,  the date the breach  shall have been cured to the
satisfaction  of the  non-breaching  party,  the  non-breaching  party  shall be
entitled to appoint an additional  Representative to the DirectorCo Board and to
elect to cause a Distribution of Netco, in which case the provisions of Schedule
13.2  shall  apply  and the  Affected  Party  shall  bear any Taxes  arising  in
connection therewith (it being understood that the non-breaching party may elect
none, some or all of such alternatives). If the breach has not been cured to the
satisfaction of the non-breaching  party within such six month cure period, then
the  non-breaching  party  shall  have all  other  remedies  available  to it as
contemplated  by Section  23.5 and under  applicable  law,  including a separate
claim for damages against the Affected Party for  misrepresentation  and failure
to honor its commitment to cure such breach.

     (c) Without  limiting the  foregoing,  if a Covered  Investor  Breach or an
Event of Default under Section  22.3(c) or 22.3(d)  arises in connection  with a
Change of Control, the parent that is not subject to the Change of Control shall
also have the rights set forth in Section 23.3.

     23.7 Fair Market Value; Sale and Closing of Put Shares or Call Shares.

     (a) Within 10 days after the date of delivery of a Put Notice under Section
23.3 or an Election  Notice  under  Section  23.4,  the parents  shall select an
Appraiser in  accordance  with Annex 2. The Appraiser  shall  determine the fair
market value of the Put Shares or Call Shares in accordance with Annex 2.

<PAGE>

     (b) The  closing  of the sale and  purchase  of the Put  Shares or the Call
Shares,  as the case may be,  shall take place  within 90 days after the date of
receipt of the  Appraiser's  report on a date mutually agreed to by the parents;
provided that such date shall be subject to extension up to a maximum  period of
15 months  solely  for the  purposes  of  obtaining  all  material  Governmental
Approvals that may be required in connection with the sale and purchase thereof.
The closing shall take place at the offices of Houthoff,  Parnassusweg 126, 1076
AT Amsterdam, The Netherlands or at such other place as the parents shall agree.
The  parents  shall,  and  shall  cause  Thistle  BV and  the  applicable  Newco
Subsidiaries  to, use their  Reasonable  Best Efforts in  cooperation  with each
other promptly to make all filings,  give all notices and secure all Third Party
Approvals and Governmental Approvals that may be required in connection with the
sale and purchase of the Put Shares or the Call Shares,  as the case may be. If,
notwithstanding  the  extension  of the period  for the  closing of the sale and
purchase of the Put Shares or the Call Shares,  as the case may be, all material
Governmental  Approvals have not been or cannot be obtained,  on or prior to the
expiration of the additional  15-month period, the parent that delivered the Put
Notice  or  Election  Notice,  as the case may be,  may,  by notice to the other
parent  delivered  within 10 Business Days after the expiration of such 15-month
period,  elect to cause the  dissolution  of the Newco Group.  The provisions of
Section 23.9 shall apply to a  dissolution  of the Newco Group  initiated  under
this Section 23.7(b); provided, however, that, notwithstanding the provisions of
Annex 1, the parent that  delivered  the Put Notice or Election  Notice,  as the
case may be, shall be entitled to be  allocated  assets and  liabilities  of the
Newco Group in such a manner so as to approximate as closely as practicable  any
discount  or  premium  that it  would  have  been  entitled  to had the sale and
purchase  of the Put Shares or Call  Shares been  consummated.  The  dissolution
shall  be  completed  as  soon  as  practicable  but in any  event,  subject  to
compliance with mandatory  requirements of Applicable Law, within one year after
the expiration of the 15-month extension period.

     (c) At the  closing  of the sale and  purchase  of the Put  Shares  or Call
Shares,  as the case may be, (i) the purchasing  parent (which shall include its
Affiliate  that is a shareholder or member of the members of the Newco Group and
of  DirectorCo)  shall  pay to the  selling  parent  (which  shall  include  its
Affiliate  that is a shareholder or member of the members of the Newco Group and
of DirectorCo)  the applicable  purchase price in cash or by cashier's  order or
wire transfer of funds or any combination of the foregoing,  (ii) in the case of
shares of Thistle BV, the selling parent shall transfer the shares of Thistle BV
comprising a part of the Put Shares or the Call  Shares,  as the case may be, to
the purchasing  parent pursuant to a notarial deed of transfer among the selling
parent,  the  purchasing  parent  and  Thistle BV  substantially  in the form of
Exhibit O, and all requisite  share transfer taxes or share transfer costs shall
be  borne  equally  by the  parents  in the case of the  shares  of  Thistle  BV
comprising  a part of the Put Shares and  solely by the  breaching  party in the
case of the shares of Thistle BV comprising a part of the Call Shares, and (iii)
in the case of the  shares and equity  interests  in other  members of the Newco
Group and of DirectorCo, the selling parent shall deliver duly executed transfer
forms  and  sold  notes  or  other   instruments  of  transfer,   together  with
certificates  representing  such other shares and equity interests  comprising a
part of the Put Shares or the Call Shares,  as the case may be (if  applicable),
duly endorsed for transfer and  accompanied  by payment of all  requisite  share
transfer taxes,  which shall be borne equally by the parents in the case of such

<PAGE>

other shares and equity interests comprising a part of the Put Shares and solely
by the  breaching  party in the case of such other  shares and equity  interests
comprising a part of the Call Shares, and such Put Shares or Call Shares, as the
case may be,  shall be free and clear of any Liens  (other  than  those  arising
hereunder),  and the  selling  parent  shall so  represent  and  warrant  to the
purchasing  parent,  and shall further  represent and warrant to the  purchasing
parent that it is the record,  beneficial and legal owner of all such Put Shares
or Call  Shares,  as the case may be, with full power and  authority to transfer
such Put Shares or Call Shares, as the case may be.
         
     23.8  Licensing  Obligations.  Notwithstanding  anything  to  the  contrary
contained herein, including Annex 1 attached hereto:

     (a) Upon the  dissolution  of the Newco Group or the  withdrawal of BT from
the Newco Group  whether  pursuant to the  exercise by AT&T of its rights  under
Section 23.3 or by BT of its rights under  Section 23.4, BT shall be entitled to
purchase at fair market value such assets of the Newco Group located in the U.K.
as are  required to be owned by BT in order to operate  under its then  existing
licenses in the U.K.; and

     (b) Upon the  dissolution of the Newco Group or the withdrawal of AT&T from
the Newco  Group  whether  pursuant to the  exercise  by BT of its rights  under
Section 23.3 or by AT&T of its rights under Section 23.4, AT&T shall be entitled
to purchase at fair market  value such assets of the Newco Group  located in the
United States as AT&T can demonstrate clearly are of the same type that would be
purchasable  by BT as  required  by  BT's  then  existing  licenses  if BT  were
purchasing assets under Section 23.8(a).

     (c) Either  parent  purchasing  assets  pursuant to this Section 23.8 shall
indemnify  Thistle BV and the other  parties for all Taxes arising in connection
therewith.

     23.9 Division of Assets on Dissolution.

     (a) With respect to any dissolution  initiated pursuant to Section 11.2(d),
11.5(c)(iii),  13.4,  13.5,  14.3,  23.2,  23.4,  23.5 or 23.7,  subject  to the
provisions of Section 23.8, the assets and  liabilities of the Newco Group shall
be divided  between the parents in accordance  with the  provisions set forth on
Annex  1  attached  hereto  and to such  additional  provisions  as the  parents
mutually  determine are necessary or advisable.  Such division of the assets and
liabilities  will be  administered  by an independent  third party agreed by the
parents, who shall be an internationally  recognized  accounting or similar firm
or individual with expertise in the telecommunications industry; provided, that,
if the parents are unable to agree upon such  independent  third party within 30
days following the delivery of the applicable notice of election to dissolve the
Newco  Group  provided  in Section  11.2(d),  11.5(c)(iii),  13.4,  13.5,  14.3,
23.4(b),  23.5(b) or 23.7(b),  or, in the case of Section  23.2,  following  the
later of the end of the eighth full Fiscal Year if a Performance Notice has been
given  and the  first  delivery  of a  Performance  Notice,  either  parent  may
thereafter submit its choice of an independent third party  administrator to the
Wise  Counselor and request the Wise  Counselor to make his or her choice within
20 days  following the submission of the matter to him or her. The parents shall
cause the third party administrator  referred to in the preceding sentence to be

<PAGE>

elected as the liquidator  (vereffenaar)  of Thistle BV pursuant to the relevant
provisions  of the  Thistle  BV  Charter  Documents  and,  unless  both  parents
otherwise agree,  shall cause VLT and BT Holdings to vote all of their shares of
Thistle  BV  against  any  resolution  for the  removal  or  suspension  of such
liquidator. Any successor liquidator of Thistle BV may be elected by the parents
only in accordance  with the  provisions of the  preceding two  sentences.  Each
party  shall  execute,  or  cause  to  be  executed  such  documents  and  other
instruments  and  take or  cause  to be taken  such  further  actions  as may be
reasonably  requested to carry out the dissolution pursuant to the provisions of
Annex 1,  including  using its Reasonable  Best Efforts in cooperation  with the
other promptly to make all filings, give all notices, and secure all Third Party
Approvals and Governmental  Approvals and execute such documents and instruments
in  reasonable  and customary  form that may be required in connection  with the
division  of the assets and  liabilities  of the Newco Group or  otherwise  with
respect to the dissolution of the Newco Group.

     (b) If and to the extent that any  provision of this Article 23 relating to
the distribution of assets upon dissolution of Thistle BV cannot be given direct
effect because such provision conflicts with mandatory  provisions of Applicable
Law, the parent receiving more assets in such dissolution than it is entitled to
receive  pursuant to this Article 23 shall,  promptly  after its receipt of such
assets, transfer such assets without consideration to the other parent.

     23.10 Effect of Termination. Except as otherwise expressly provided in this
Agreement,  upon  completion  of the  dissolution  of  the  Newco  Group  or the
consummation  of a Put  or a  Call,  all  provisions  of  this  Agreement  shall
terminate  and be of no further force or effect,  except  Articles 1, 14, 17 (to
the extent necessary to form the basis of any claims pursuant to Article 25), 24
and 25 and Sections 18.7,  18.10,  28.3,  28.5, 28.6, 28.7, 28.8, 28.9 and 28.10
and  Annex 1 and  Annex 3.  Except  as  expressly  provided  in any  Transaction
Agreement,  each  Transaction  Agreement shall terminate upon the earlier of (i)
completion of the  dissolution of the Newco Group,  or (ii) the later of (x) two
years  following  the  giving of a Put Notice or an  election  Notice or (y) the
consummation of the Put or Call.

                                   ARTICLE 24
                               DISPUTE RESOLUTION

     24.1 College of Wise Counselors.

     (a) AT&T and BT will appoint by mutual  agreement a "Wise Counselor" who is
disinterested with respect to, and independent of, the parents and knowledgeable
about the Venture Business,  AT&T and BT and about the relationship  between the
parents. For this purpose,  the initial Wise Counselor,  and four other persons,
who satisfy the criteria set forth in the  preceding  sentence  (the "College of
Wise Counselors")  will be identified in Schedule 24.1(a),  which will be agreed
upon on or before April 30, 1999.

     (b) The initial Wise  Counselor and each  successor  Wise  Counselor  shall
serve for a term of 18 months; provided, however, that any matters, or series of
directly  related  matters,  submitted to the Wise Counselor prior to the end of
such 18-month  period shall remain  within his or her  authority to resolve.  No
later  than 45 days  prior  to the end of the term of a Wise  Counselor,  either

<PAGE>

parent  may,  by  notice to the  other  parent,  designate  a  replacement  Wise
Counselor  for  the  next  18-month  period  from  among  the  College  of  Wise
Counselors.  If within such 45-day period,  the other parent does not propose an
alternative  replacement,  then the  replacement  designated  by the parent that
issued a notice shall became the successor Wise Counselor. If within such 45-day
period,  the other parent does indicate by notice to the first notifying  parent
that it wishes to appoint a  different  successor  Wise  Counselor,  the parents
shall promptly submit the two choices to the remaining members of the College of
Wise  Counselors  for  selection.  The remaining  members of the College of Wise
Counselors  shall be  requested to make their  selection  within five days after
referral of the matter to them. If neither parent designates a replacement,  the
then serving Wise  Counselor  shall  continue to serve as Wise Counselor for the
following 18-month period.

     (c) Each time a person is designated as a successor Wise Counselor from the
College of Wise  Counselors,  the parents shall agree upon and identify  another
person to become one of the members of the College of Wise  Counselors (it being
understood  that at all times there will be four  persons in the College of Wise
Counselors).  If the parents cannot agree on an additional  Wise Counselor to be
added to the College of Wise  Counselors,  the appointment  shall be made by the
Wise Counselors who then constitute the College of Wise  Counselors.  They shall
be  instructed  that their  nominee must satisfy the  requirements  in the first
sentence of Section 24.1(a).

     24.2  Resignation or Replacement of Wise  Counselor.  It is understood that
the Wise  Counselor  will be free to resign his or her  appointment  at any time
without liability whatsoever. Within 10 days after the Wise Counselor resigns or
ceases to act for any reason whatsoever,  BT and AT&T will, by mutual agreement,
appoint a  successor  in  accordance  with the  provisions  for  selection  of a
successor from the College of Wise Counselors  described in Section 24.1,  which
successor shall serve for an 18-month term from his or her  appointment.  BT and
AT&T, by mutual  consent,  may at any time  designate a successor Wise Counselor
from the College of Wise Counselors.

     24.3 Submission of Claims.

     (a) Subject to Sections 24.4(c) and 24.5,  after the Closing,  any dispute,
controversy  or claim  (each  such  dispute,  controversy  or claim,  a "Claim")
arising  out of or relating to this  Agreement  or any of the other  Transaction
Agreements  of a legal or  contractual  nature or any  breach  of any  provision
hereof or thereof shall be resolved by arbitration before the Wise Counselor who
shall apply the law governing the applicable Transaction Agreement, and judgment
upon the award  rendered by him or her may be entered  upon  application  of the
party entitled  thereto in the U.S.  District Court for the Eastern  District of
Virginia  (the  "District  Court");  provided,  however,  that no  Claim  may be
submitted  to the Wise  Counselor  by any party to this  Agreement or any of the
Transaction  Agreements unless and until a senior officer of each of the parents
shall have met and conferred with respect thereto (unless the other parent shall
have failed to comply with a request to confer after reasonable notice).

     (b) For purposes of court  enforcement of a Wise Counselor's award pursuant
to Section 24.3(a),  the Wise Counselor's  award shall have the force and effect
of an arbitral award under the United States Federal  Arbitration Act, and shall
be directly  enforceable in The Netherlands in accordance with the provisions of
the Dutch Code of Civil  Procedure.  Subject to Sections  24.4(c) and 24.5,  the
decision and award of the Wise Counselor  will be final and conclusive  upon the
parties with respect to all matters referred to the Wise Counselor.

<PAGE>

     (c) With respect to any claim relating to the validity or infringement of a
United  States  patent,   the  determination  of  the  Wise  Counselor  will  be
non-binding  upon the parties.  The  proceedings  of the Wise  Counselor on such
matters  will  be  conducted  as  provided  in  Section  24.4.  Any  non-binding
determination  of the Wise Counselor on the matters  referred to in this Section
24.3(c)  shall be  deemed  to meet  the  requirements  of  Section  24.5(a)  for
submission to the District Court for binding determination.

     24.4 Proceedings Before the Wise Counselor.

     (a) All hearings before the Wise Counselor will be conducted in Alexandria,
the Commonwealth of Virginia under such procedures  (including,  presentation of
written  submissions  or  presentation  of  evidence)  as  he or  she  considers
appropriate in the circumstances; provided, however, that:
                        
     (i) in any proceeding conducted by the Wise Counselor,  (x) discovery shall
be limited to the production of specific and directly  relevant  documents,  and
any such discovery must be concluded by the party seeking such discovery  within
30 days of its initial  demand for discovery,  and (y) no  depositions  shall be
permitted; and

     (ii) any Claim or series of related Claims  submitted to the Wise Counselor
shall be completed,  and the Wise Counselor's decision delivered to the parties,
within a period of three  months from the  submission  of the matter to the Wise
Counselor.

     (b) With respect to specialized  disputes,  including IPR-related disputes,
the Wise Counselor  shall be entitled to retain  experts and  specialists at the
expense of Thistle BV to assist him or her.

     24.5 District Court.

     (a) Notwithstanding  anything herein to the contrary but subject to Section
24.6, if (i) the Wise Counselor awards monetary damages in an amount equal to or
in  excess  of  $500  million  in any  proceeding  commenced  pursuant  to  this
Agreement,  whether or not accompanied by any injunctive  relief, or (ii) if (1)
the Wise  Counselor  issues  injunctive  relief,  or a combination of injunctive
relief and an award of monetary  damages in an amount less than $500  million in
any such  proceeding,  and (2) a Settlement Offer has been made and has not been
accepted,  then,  the injunctive  relief granted by the Wise Counselor  shall be
binding,  subject  to any  order  or  other  ruling  by the  District  Court  as
contemplated  by Section  24.5(b),  and any losing party may, within 10 Business
Days  after the date of such  award or the  failure  to accept  such  Settlement
Offer,  respectively,  submit the Claim or series of related  Claims giving rise
thereto to the District  Court or otherwise  seek a judicial  declaration in the
District  Court that it is not  liable on the Claim or series of related  Claims
that were  asserted by the winning  party or parties and in respect of which the
Settlement Offer was rejected.

     (b) In such event,  the District  Court shall review the matter,  including
all factual and legal  issues,  on a de novo basis and affirm,  vacate or revise
the  determination  of the Wise Counselor and the injunctive  relief  previously
granted.  The decision of the  District  Court shall be  appealable  to the full
extent provided by Applicable Law and procedures.

<PAGE>

     (c) No party shall object to the  introduction  by any other party into the
record  before  the  District  Court of the  evidentiary  record,  findings  and
holdings  of the  Wise  Counselor  in the  arbitration  of the  Claims,  but the
District Court shall not give such evidentiary record, findings and holdings any
special weight or deference.

     (d) The scope of any additional  discovery,  which may include depositions,
shall be determined by the District  Court,  provided,  that any such additional
discovery  must be completed by the parties no later than 90 days  following the
commencement of such discovery in the District Court;  and,  provided,  further,
however,  that any party  that  files a motion to the  District  Court to extend
discovery  beyond such 90-day period shall,  notwithstanding  the  provisions of
Section  24.8,  pay all costs and  expenses,  including the fees and expenses of
counsel,  that the other party may incur in both (i)  resisting any such motion,
and (ii)  complying  with any order that the District  Court may issue  granting
such request for the extension of discovery.

     (e) For the purposes of this Agreement,  each party irrevocably  submits to
the jurisdiction of the District Court solely for the purpose of  interpretation
and enforcement of matters relating to this Agreement and the other  Transaction
Agreements,  and,  unless  otherwise  agreed by the parties,  the District Court
shall have exclusive  jurisdiction and each party agrees that all legal actions,
suits and  proceedings  arising  out of or  relating  to this  Agreement  or the
transactions contemplated hereby shall be instituted only in the District Court.
Each party agrees not to assert, by way of motion,  as a defense,  or otherwise,
in any  such  action,  suit or  proceeding,  any  claim  that it is not  subject
personally  to the  jurisdiction  of the  District  Court,  that its property is
exempt  or  immune  from  attachment  or  execution,  that the  action,  suit or
proceeding is brought in an  inconvenient  forum,  that the venue of the action,
suit or proceeding  is improper,  or that this  Agreement or the subject  matter
hereof may not be enforced in or by the District  Court,  and hereby  waives any
offsets or  counterclaims  in any such  action,  suit or  proceeding  pertaining
thereto.  In any such action,  suit or  proceeding,  each party  waives,  to the
fullest  extent it may  effectively  do so,  personal  service  of any  summons,
complaint  or other  process  and agrees  that  service  thereof  may be made by
registered  airmail,  return  receipt  requested,  or by any other means of mail
which  requires  a signed  receipt,  postage  prepaid,  mailed to such  party as
provided in Section 27.2.

     (f)  EACH  OF  THE  PARTIES  HEREBY   AGREES,   AND  AGREES  TO  CAUSE  ITS
SUBSIDIARIES,  TO WAIVE  ITS  RESPECTIVE  RIGHTS  TO A JURY  TRIAL OF ANY  CLAIM
ARISING  OUT OF OR RELATING TO THIS  AGREEMENT  OR ANY OF THE OTHER  TRANSACTION
AGREEMENTS  OR  ANY  DEALINGS   BETWEEN  THEM   RELATING  TO  THE   TRANSACTIONS
CONTEMPLATED HEREBY. THE SCOPE OF THIS WAIVER IS INTENDED TO BE ALL-ENCOMPASSING
OF ANY AND ALL  DISPUTES  THAT MAY BE FILED IN THE  DISTRICT  COURT OR ANY OTHER
COURT  AND  THAT  RELATE  TO THE  TRANSACTIONS  CONTEMPLATED  HEREBY,  INCLUDING
CONTRACT CLAIMS, TORT CLAIMS, BREACH OF DUTY CLAIMS AND ALL OTHER COMMON LAW AND
STATUTORY CLAIMS.

     24.6 Settlement Offer.  Notwithstanding  anything to the contrary contained
herein,  if with  respect  to the  Claims  in any  proceeding  before  the  Wise
Counselor,  the Wise Counselor  grants  injunctive  relief,  or a combination of
monetary damages of less than $500 million and injunctive relief, and any of the

<PAGE>

losing parties  believes that the value of the injunctive  relief or the damages
plus injunctive relief is greater than $500 million, such party may, at its sole
option,  within 10 Business Days after the  determination of the Wise Counselor,
make an offer in writing to the winning party or parties, of $500 million in the
aggregate  to  all  the  winning  parties  with  respect  to  such  claims  (the
"Settlement  Offer").  If the  Settlement  Offer is not  accepted  by all of the
winning  parties  within 20 days after  receipt  of the  Settlement  Offer,  the
injunctive  relief, or the award and the injunctive  relief, as the case may be,
shall be deemed to be an award of  monetary  damages in excess of $500  million,
and the procedures  described in Section 24.5 shall apply.  If the winning party
or parties accept the Settlement Offer, the losing party or parties shall within
10 Business Days after receipt of written  confirmation  of the winning party or
parties of their acceptance of the Settlement Offer, pay the $500 million to the
winning  party or parties by wire transfer of same day funds to the bank account
or accounts  designated  by it or them.  Thereupon,  the losing party or parties
shall be  released  from all  liability  for the  Claims,  including  injunctive
relief,  that were the subject of the arbitration  proceeding and any comparable
Claims,  and the winning  party or parties  will have no further  recourse  with
respect thereto.

     24.7 Pre-Closing Claims.  Prior to the Closing, any party may institute any
legal action, suit or proceeding arising out of or relating to this Agreement or
the other  Transaction  Agreements in the District Court,  and the parties agree
that the District  Court shall have  exclusive  jurisdiction  to adjudicate  the
same.

     24.8 Payment of Costs.  All costs and expenses  reasonably  incurred by the
winning  party or parties  in  connection  with  either  the Wise  Counselor  or
judicial  proceedings  pursuant to this Agreement,  including fees,  charges and
disbursements of attorneys, whether prior to or after the Closing, shall be paid
by the losing party or parties.

     24.9 Exclusive Method of Dispute Resolution.  The parties hereby agree that
the  provisions  of this Article 24  constitute  an exclusive  agreement for the
settlement of disputes ("regeling voor de oplossing van geschillen") as referred
to in Book 2, article 337, of the Dutch Civil Code and each party hereby, to the
fullest extent permitted by Applicable Law, waives any right such party may have
to initiate any of the procedures  against the other parties referred to in Book
2, Title 8, Part 1, of the Dutch Civil Code.

                                   ARTICLE 25
           SURVIVAL OF REPRESENTATIONS AND WARRANTIES; INDEMNIFICATION

     25.1  Survival  Period.  Except  for  Sections  17.1(q)  and  17.2(q),  all
representations,  warranties,  covenants and agreements of the parties contained
in this Agreement,  the IPR Agreement and the Employee  Matters  Agreement shall
survive the Closing,  and all such representations and warranties of the parents
shall  thereafter  terminate  and  expire  on the 90th day  after the end of the
second full Fiscal Year or, if later,  30 days after the delivery of the audited
financial statements described in Section 6.7(a)(iii) for the second full Fiscal
Year,  with  respect to any claim based upon,  arising  out of or  otherwise  in
respect of any fact,  circumstance  or Action of which the party  asserting such
claim shall not have given written  notice on or prior to such date to the party

<PAGE>

against which such claim is asserted,  and thereafter  neither parent shall have
any  liability in respect of any claim in respect of which such  written  notice
shall not have been  given on or prior to such  date.  No claim may be  asserted
against an  Indemnifying  Party for  breach of any  representation  or  warranty
contained  herein,  unless  written  notice  of such  claim is  received  by the
Indemnifying Party describing in detail the facts and circumstances with respect
to the  subject  matter  of such  claim on or  prior  to the  date on which  the
representation or warranty on which such claim is based ceases to survive as set
forth in this Section 25.1. For the avoidance of doubt, the  representations and
warranties  contained  in Sections  17.1(q)  and  17.2(q)  shall not survive the
Closing, and the sole remedy of any party for any claims relating to Taxes shall
be as set forth in Section 25.5.

     25.2 Indemnification by AT&T. AT&T shall indemnify and hold harmless BT and
its  Affiliates  (other  than  Concert and MCI and their  Affiliates)  and their
respective officers, directors,  employees and representatives and each of their
respective  heirs,  executors,  successors  and  assigns  (the  "BT  Indemnified
Parties") from and against all claims, liabilities,  losses, costs, expenses and
damages,  including the reasonable  fees,  expenses and other charges of counsel
(collectively,  "Losses")  relating  to,  arising out of or resulting  from,  or
asserted by third Persons against the BT Indemnified  Parties in connection with
(a) AT&T's or its  Affiliate's  participation  in any business  relationship  or
alliance,  including any of the  foregoing  that may arise out of, in connection
with or relating to any agreements,  arrangements or  understandings  between or
among  AT&T and its  Affiliates,  on the one hand,  and World  Partners  Company
and/or AT&T-Unisource  Communications  Services and any of their Affiliates,  on
the other hand,  or (b) without any  duplication  of any  recovery by Thistle BV
under Section 25.4(e),  any inaccuracy in or any breach of any representation or
warranty contained in Section 17.1(a), (b), (c) or (d).

     25.3  Indemnification  by BT. BT shall indemnify and hold harmless AT&T and
its  Affiliates  and  their  respective  officers,   directors,   employees  and
representatives  and each of their respective heirs,  executors,  successors and
assigns (the "AT&T  Indemnified  Parties") from and against all Losses  relating
to, arising out of or resulting  from, or asserted by third Persons  against the
AT&T  Indemnified  Parties  in  connection  with  (a)  BT's  or its  Affiliate's
participation  in any business  relationship  or alliance,  including any of the
foregoing  that  may  arise  out  of,  in  connection  with or  relating  to any
agreements,  arrangements  or  understandings  between or among BT,  Concert and
their  Affiliates,  on the one hand,  and MCI and/or  WorldCom  and any of their
Affiliates on the other hand,  including the Agreement and Plan of Merger, dated
as of November 9, 1997 among WorldCom, TC Investments Corp. and MCI, the Amended
and Restated Investment Agreement,  dated as of January 31, 1994, between BT and
MCI, as amended as of September 29, 1994, the Agreement, dated as of November 9,
1997,  among BT, MCI and WorldCom,  any agreement,  arrangement or understanding
referred to in Section 9.2(b)(i) and any related agreements or arrangements,  or
(b) without any duplication of any recovery by Thistle BV under Section 25.4(e),
any inaccuracy in or any breach of any  representation or warranty  contained in
Section 17.2(a), (b), (c) or (d).

     25.4 General Indemnification.

     (a) AT&T shall indemnify and hold harmless the BT Indemnified  Parties, and
BT shall  indemnify  and hold  harmless  the AT&T  Indemnified  Parties from and
against all Losses  relating to, arising out of or resulting from or asserted by
any third  Person  against the BT  Indemnified  Parties or the AT&T  Indemnified
Parties,  respectively,  in connection with, any breaches or alleged breaches by
AT&T and its Affiliates or BT and its Affiliates, respectively, under any of the
Transaction Agreements.

<PAGE>

     (b)  Thistle  BV  shall  indemnify  and  hold  harmless  each  of the  AT&T
Indemnified  Parties and the BT Indemnified Parties from and against any and all
Losses asserted by any third Person against any of the AT&T Indemnified  Parties
or BT Indemnified Parties in connection with any Assumed  Liabilities,  the AT&T
Guarantees and the BT  Guarantees,  or the business and operations of any member
of the Newco Group.

     (c) AT&T shall  indemnify and hold harmless the BT Indemnified  Parties and
Thistle BV from and against any and all Losses  relating  to,  arising out of or
resulting  from,  or  asserted  by  any  third  Person  against  any  of  the BT
Indemnified  Parties,  Thistle  BV or any other  member  of the  Newco  Group in
connection with, any Excluded AT&T Liabilities.  The indemnification  obligation
of AT&T under this Section 25.4(c) shall terminate on the fourth  anniversary of
the Closing  Date (other than with respect to claims that have been made and are
pending  resolution as of such date, with respect to which such obligation shall
survive).

     (d) BT shall indemnify and hold harmless the AT&T  Indemnified  Parties and
Thistle BV from and against any and all Losses  relating  to,  arising out of or
resulting  from,  or  asserted  by any  third  Person  against  any of the  AT&T
Indemnified  Parties,  Thistle  BV or any other  member  of the  Newco  Group in
connection with, any Excluded BT Liabilities.  The indemnification obligation of
BT under this Section 25.4(d) shall  terminate on the fourth  anniversary of the
Closing  Date  (other  than with  respect to claims  that have been made and are
pending  resolution as of such date, with respect to which such obligation shall
survive).

     (e) Subject to Section 25.7,  each parent shall indemnify and hold harmless
Thistle BV from and against any and all Losses  relating  to,  arising out of or
resulting from, or asserted by any third Person against Thistle BV or any member
of the Newco Group,  in connection  with any  inaccuracy in or any breach of any
representation  or warranty of such parent contained in this Agreement,  the IPR
Agreement or the Employee Matters  Agreement,  relating to the AT&T Assets,  the
Assets of the Contributed AT&T  Subsidiaries and the AT&T GCS Business or the BT
Assets,  the Assets of the Contributed BT Subsidiaries  and the BT GCS Business,
as the case may be.

     25.5 Tax Indemnification.

     (a) AT&T shall  indemnify and hold harmless the BT Indemnified  Parties and
Thistle BV and other  members of the Newco  Group from and  against  any and all
Losses  relating to, arising out of or resulting  from, or asserted by any third
Person against any of the BT Indemnified Parties, Thistle BV or any other member
of the  Newco  Group  with  respect  to (i) AT&T  Pre-Closing  Taxes,  (ii) AT&T
Consolidated Group Taxes and Taxes that constitute Excluded AT&T Liabilities and
(iii) AT&T Transaction Gains Taxes (other than Excluded Taxes);  provided,  that
if (I) an audit adjustment for a period ending (or deemed to end) on or prior to
the Closing  Date either (x) gives rise to an  indemnity  obligation  under this
Section 25.5(a) or (y) constitutes an audit  adjustment for a member of the AT&T
Consolidated  Group other than a Contributed  AT&T Subsidiary that results in an
increase  in tax basis of assets held by a member of the Newco  Group,  and (II)
such adjustment is reasonably expected to reduce the taxable income of the Newco
Group for a taxable  year or period  beginning  after  the  Closing  Date  (such
estimated  reduction in taxable income referred to herein as a "Post-Closing Tax
Benefit"),  then the amount  required  to be  indemnified  by AT&T  pursuant  to
Section  25.5(a)(i)  shall  be  reduced  by the  "net  present  value"  of  such
Post-Closing Tax Benefit in accordance with Section 25.5(e).

<PAGE>

     (b) BT shall indemnify and hold harmless the AT&T  Indemnified  Parties and
Thistle BV and other  members of the Newco  Group from and  against  any and all
Losses  relating to, arising out of or resulting  from, or asserted by any third
Person  against  any of the AT&T  Indemnified  Parties,  Thistle BV or any other
member of the Newco  Group with  respect to (i) BT  Pre-Closing  Taxes,  (ii) BT
Consolidated  Group Taxes and Taxes that constitute  Excluded BT Liabilities and
(iii) BT Transaction Gains Taxes (other than (Excluded Taxes);  provided,  that,
if (I) an audit  adjustment for a period ending or deemed to end) on or prior to
the Closing  Date either (x) gives rise to an  indemnity  obligation  under this
Section  25.5(b) or (y)  constitutes an audit  adjustment for a member of the BT
Consolidated  Group other than a Contributed  BT  Subsidiary  that results in an
increase  in tax basis of assets held by a member of the Newco  Group,  and (II)
such adjustment is reasonably  expected to result in a Post-Closing  Tax Benefit
for a taxable year or period  beginning  after the Closing Date, then the amount
required to be indemnified by BT pursuant to Section 25.5(b)(i) shall be reduced
by the "net present value" of such  Post-Closing  Tax Benefit in accordance with
Section 25.5(e).

     (c) No  payment  shall be  required  under  Section  25.5(a)(i)  or Section
25.5(b)(i)  until  the  first  calendar  year in which  either:  (i) the  Losses
attributable  to the  aggregate  cumulative  AT&T  Pre-Closing  Taxes exceed the
Losses  attributable  to the aggregate  cumulative BT  Pre-Closing  Taxes by $20
million,  in which case AT&T shall be  required  to make a payment  pursuant  to
Section  25.5(a)(i)  in an  amount  equal  to  the  excess  of  (x)  the  Losses
attributable  to the aggregate  cumulative AT&T  Pre-Closing  Taxes over (y) the
Losses  attributable to the aggregate  cumulative BT Pre-Closing  Taxes; or (ii)
the Losses attributable to the aggregate  cumulative BT Pre-Closing Taxes exceed
the Losses  attributable to the aggregate  cumulative AT&T Pre-Closing  Taxes by
$20  million,  in which case BT shall be required to make a payment  pursuant to
Section  25.5(b)(i)  in an  amount  equal  to  the  excess  of  (x)  the  Losses
attributable  to the  aggregate  cumulative  BT  Pre-Closing  Taxes over (y) the
Losses attributable to the aggregate cumulative AT&T Pre-Closing Taxes. For each
calendar  year  following  the year in which the  first  payment  is made  under
Section 25.5(a)(i) or Section  25.5(b)(i):  (i) AT&T shall be required to make a
payment  pursuant  to  Section  25.5(a)(i)  in an  amount  equal  to the  Losses
attributable to the aggregate cumulative AT&T Pre-Closing Taxes as of such time,
minus all amounts  previously  paid  pursuant to Section  25.5(a)(i),  minus the
Losses attributable to the aggregate  cumulative BT Pre-Closing Taxes as of such
time,  plus all amounts  previously  paid by BT pursuant to Section  25.5(b)(i),
unless the amount so  calculated is less than or equal to zero, in which case no
payment shall be due under Section 25.5(a)(i);  and (ii) BT shall be required to
make a payment  pursuant to Section  25.5(b)(i) in an amount equal to the Losses
attributable to the aggregate  cumulative BT Pre-Closing  Taxes as of such time,
minus all amounts  previously  paid  pursuant to Section  25.5(b)(i),  minus the
Losses  attributable to the aggregate  cumulative AT&T  Pre-Closing  Taxes as of
such  time,  plus  all  amounts  previously  paid by AT&T  pursuant  to  Section
25.5(a)(i),  unless the amount so  calculated  is less than or equal to zero, in
which case no payment shall be due under Section  25.5(b)(i).  In each case, the
Losses  attributable  to the  aggregate  cumulative  Pre-Closing  Taxes shall be
calculated  from the Closing Date through the last day of the relevant  calendar
year, and the aggregate  cumulative  Pre-Closing  Taxes shall include only those
amounts for which a  determination,  as set forth in section 1313(a) of the Code
or any equivalent provision of foreign, state or local law, has been made by the
relevant Taxing Authority.

<PAGE>

     (d) The  "net  present  value"  of a  Post-Closing  Tax  Benefit  shall  be
determined by using a discount  rate equal to 6.5%.  For purposes of making this
determination, the parents shall assume that a Post-Closing Tax Benefit shall be
realized by the Newco Group at the time the  relevant  Tax Return is required to
be filed for the taxable year or period in which such  Post-Closing  Tax Benefit
is reasonably expected to be available and that the relevant member of the Newco
Group  is  subject  to  tax  at  the  maximum  rate   provided  by  law  in  the
jurisdiction(s) in which it is subject to tax for such taxable year or period.

     (e) In the event of any audit,  administrative  or judicial  proceeding the
outcome  of which  could  result in an  indemnification  payment  under  Section
25.5(a)  or  Section  25.5(b)  (a "Tax  Proceeding"),  the  parent  who could be
required to make an  indemnification  payment as a result of such Tax Proceeding
(the "Tax  Indemnifying  Party")  shall have the right to control the conduct of
such  Tax  Proceeding,  and to  employ  counsel  at its own  expense;  provided,
however, the non-indemnifying  parent (the "Non-Indemnifying  Party") shall have
the  right  to   participate   in  such  Tax  Proceeding  at  its  own  expense.
Notwithstanding the foregoing,  the Tax Indemnifying Party shall not be entitled
to settle any such Tax  Proceeding  without the consent of the  Non-Indemnifying
Party,  which consent shall not be  unreasonably  withheld.  The only reasonable
basis  for  withholding  consent  to any  settlement  shall be a non de  minimis
adverse Tax effect on such party.

     25.6 Notice and Opportunity to Defend Against Third Party Claims.

     (a) Promptly after receipt by any BT Indemnified  Party or AT&T Indemnified
Party or Thistle  BV (the  "Indemnitee")  from any third  party of notice of any
demand, claim or circumstance that, with the lapse of time, would give rise to a
claim or the commencement or threatened  commencement of any action,  proceeding
or  investigation  (an  "Asserted  Liability")  that may  result in a Loss under
Section 25.2, 25.3 or 25.4, as the case may be, the Indemnitee shall give notice
thereof (the "Claims Notice") to AT&T, BT or Thistle BV, as the case may be (the
"Indemnifying  Party");  provided,  that,  any failure to promptly give a Claims
Notice  shall not  relieve any  Indemnifying  Party of its  liability  hereunder
except to the extent that such Indemnifying Party has been materially prejudiced
thereby.  The Claims Notice shall describe the Asserted  Liability in reasonable
detail, and shall indicate the amount, estimated, if necessary, of the Loss that
has been or may be suffered by the Indemnitee.

     (b) The  Indemnifying  Party may elect to compromise or defend,  at its own
expense and by its own counsel, any Asserted Liability if it confirms in writing
that it has liability for such Asserted Liability without qualification.  If the
Indemnifying  Party elects to compromise  or defend such Asserted  Liability and
gives such notice, it shall within 30 Business Days, or sooner, if the nature of
the Asserted  Liability so requires,  notify the  Indemnitee of its intent to do
so, and the  Indemnitee  shall  cooperate,  at the  expense of the  Indemnifying
Party, in the compromise of, or defense against, such Asserted Liability. If the
Indemnifying  Party elects not to compromise  or defend the Asserted  Liability,
fails to notify the  Indemnitee  of its election as herein  provided or contests
its liability to indemnify the Indemnitee, the Indemnitee may pay, compromise or
defend such  Asserted  Liability.  Notwithstanding  the  foregoing,  neither the
Indemnifying  Party nor the  Indemnitee  may settle or compromise any claim over
the objection of the other;  provided,  however,  that no Indemnifying  Party or

<PAGE>

Indemnitee  shall consent to entry of any judgment or enter into any  settlement
without the consent of the Indemnitee or Indemnifying  Party,  respectively,  if
the effect thereof is to permit any injunction,  declaratory judgment,  order or
other  nonmonetary  relief to be entered,  directly or  indirectly,  against the
Indemnitee or Indemnifying Party, respectively,  and provided, further, however,
that no Indemnifying  Party shall be liable for any settlement  effected without
its consent,  such consent not to be unreasonably  withheld.  In any event,  the
Indemnitee and the Indemnifying Party may participate,  at their own expense, in
the defense of such Asserted  Liability.  If the  Indemnifying  Party chooses to
defend any  Asserted  Liability,  the  Indemnitee  shall make  available  to the
Indemnifying Party any books, records or other documents within its control that
are necessary or appropriate for such defense.  If the  Indemnifying  Party does
not so choose,  it will make available to the  Indemnitee any books,  records or
other  documents  within its control that are necessary or  appropriate  for the
defense of the Asserted Liability.

     (c) If any  Asserted  Liability  involves  a Loss in  respect  of  which an
Indemnifying Party has an  indemnification  obligation under this Article 25, as
well as a Loss in  respect  of which  such  Indemnifying  Party does not have an
indemnification obligation under this Article 25, the parties shall cooperate in
allocating responsibility therefor.

     25.7 Limitation on  Indemnification.  The  indemnification  provided for in
Section 25.4(e) shall be subject to the following limitations:

     (a)  An  Indemnifying   Party  shall  not  be  required  to  indemnify  any
Indemnitee,  and shall not have any  liability for any  individual  occurrences,
events, circumstances, acts or omissions where the Loss relating thereto is less
than $1 million, and such occurrences, events, circumstances,  acts or omissions
shall not be aggregated for the purposes of Section 25.7(b); and

     (b) An  Indemnifying  Party shall not be  obligated  to pay any amounts for
indemnification  under Section 25.4(e) until the aggregate  amount of all Losses
for which it would be liable  exceeds on a  cumulative  basis an amount equal to
$62.5  million,  whereupon the  Indemnifying  Party shall be obligated to pay in
full all such Losses;  provided,  that, the limitation contained in this Section
25.7  shall  not  apply  with  respect  to any  inaccuracy  in or  breach of the
representation contained in Section 17.2(u).

     25.8 Certain Matters Relating to Indemnification.

     (a) With  respect to the  matters  that are  subject  to, or asserted by an
Indemnitee  to be subject to, the  indemnification  obligations  created by this
Article  25,  except  as  otherwise  expressly  provided  herein or in any other
Transaction  Agreement,  the parties agree not to seek recovery from one another
other than  pursuant to this Article 25; it being  understood  that the recovery
available  under  this  Article  25 is  limited  to a  right  to  seek  monetary
compensation and does not include specific performance or injunctive relief.

     (b) In no event shall any  Indemnifying  Party be responsible or liable for
any Losses that are incidental,  consequential,  indirect,  special, punitive or
other than actual damages.

<PAGE>

     (c) The  amount  which any  Indemnifying  Party is  required  to pay to any
Indemnitee  entitled  to  indemnification  hereunder  will  be  reduced  by  any
insurance proceeds or other amount recovered or recoverable from any third party
in  reduction  of the  related  Loss.  If an  Indemnitee  receives a payment (an
"Indemnity  Payment")  required by this Agreement from an Indemnifying  Party in
respect of any Loss and subsequently receives insurance proceeds or recovers any
other  amount as provided in this  Section  25.8(c),  then the  Indemnitee  will
without demand reimburse the  Indemnifying  Party such amount as is 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 or other amounts had
been received, realized or recovered before the Indemnity Payment was made.

     (d) Any Loss for which  indemnification  is sought  hereunder shall also be
reduced by any net tax benefit actually realized by the Indemnitee.  Any net tax
benefit  actually  realized by the  Indemnitee  subsequent  to its receipt of an
Indemnity Payment shall be promptly reimbursed to the Indemnifying Party.

     (e)  Notwithstanding  anything in this  Agreement or any other  Transaction
Agreement to the contrary,  a party shall not be required to indemnify any other
party with respect to any Loss incurred by or asserted  against such other party
by reason of any breach of any of the  representations  or warranties  contained
herein,  if such breach has affected the calculation of the BT Closing Valuation
or the AT&T Closing Valuation, as applicable, or to the extent the amount of the
Loss was reflected in the BT Closing Valuation or the AT&T Closing Valuation, as
applicable.

     25.9  Treatment of  Indemnification  Payments.  The parties  agree that any
Indemnity Payment hereunder shall be treated for tax and accounting  purposes as
follows:  (a) the Loss for which an Indemnity  Payment is made shall be treated,
ab initio, as a reduction in the amount of the capital  contribution and related
capital account of the party (or Affiliate thereof) making the payment;  (b) the
Indemnity  Payment  shall  increase,  ab initio,  the capital  contribution  and
related capital account of the Indemnifying  Party; and (c) no additional shares
will be issued by Thistle BV in connection  therewith.  These  provisions  shall
apply mutatis mutandis if the Indemnifying Party is Thistle BV.

                                   ARTICLE 26
                         OTHER COOPERATION OPPORTUNITIES

     26.1 U.S. Wireless Opportunities.  AT&T hereby offers to BT the opportunity
to invest in the wireless  activities in the United States of America  described
in Schedule  26.1  attached  hereto,  and agrees to  negotiate in good faith and
diligently with BT on any such particular  opportunity that BT wishes to explore
with AT&T;  provided,  that, BT gives AT&T notice of such intention prior to the
date specified in Schedule 26.1 with respect to such particular opportunity.

     26.2  Investment  Fund.  From and after the Closing Date, the parents shall
actively operate an investment fund pursuant to the Investment Fund Agreement.

                                   ARTICLE 27
                                   BANKRUPTCY

     27.1 Bankruptcy.

     (a) The AT&T Parties and the BT Parties acknowledge and agree that they are
entering  into this  Agreement  and forming the Newco Group in reliance upon the
unique skills and expertise of the other. Accordingly,  upon the Bankruptcy of a
parent or of a material Subsidiary of a parent constituting substantially all of

<PAGE>

its business (the affected parent, a "Bankrupt  Parent"),  the other parent (the
"Non-Bankrupt  Parent")  shall  have the right,  promptly  and  without  further
action,  upon the earlier of (i) the  Non-Bankrupt  Parent becoming aware of the
Bankruptcy  of the  Bankrupt  Parent  and (ii) the  occurrence  of the  event of
Bankruptcy,  to manage and  control the  business  and  operations  of the Newco
Group. 

     (b) To effectuate  the intent of Section  27.1(a),  upon the occurrence and
during the  continuance  of the  Bankruptcy of the Bankrupt  Parent,  unless the
Non-Bankrupt Parent shall elect otherwise, the Representatives on the DirectorCo
Board  appointed by the  Bankrupt  Parent or its  Affiliate  that is a member of
DirectorCo  shall be deemed to have resigned upon the occurrence of the event of
Bankruptcy  and the  Non-Bankrupt  Parent or its  Affiliate  that is a member of
DirectorCo  shall  forthwith  have  the  right  to  appoint  three   replacement
Representatives  to fill the vacancies caused by such resignations to act as the
Class of  Representatives  formerly  appointed  by the  Bankrupt  Parent  or its
Affiliate, as the case may be.

     (c) Upon the occurrence and during the continuance of the Bankruptcy of the
Bankrupt Parent:

     (i) The  provisions  of clause (b) of the second  sentence of Section  11.6
shall be of no further force or effect with respect to the  Non-Bankrupt  Parent
and its Group Companies; and
                           
     (ii) The  Non-Bankrupt  Parent shall have the right to cause a Distribution
of Netco,  in which case the  provisions  of  Schedule  13.2 shall apply and the
Non-Bankrupt Parent and the Bankrupt Parent shall bear equally any Taxes arising
in connection therewith.

     (d) If, upon the first  anniversary  of the occurrence of the Bankruptcy of
the Bankrupt Parent, such Bankruptcy continues,  the provisions of the remainder
of Article 11 shall  thereupon be of no further  force or effect with respect to
the  Non-Bankrupt  Parent and its Group Companies  during the continuance of the
Bankruptcy.

     (e) The parties agree that if the Bankrupt  Parent is no longer the subject
of an event of Bankruptcy,  other than by reason of its complete  dissolution or
liquidation,  the  Non-Bankrupt  Parent's  rights and  benefits  under  Sections
27.1(b),  (c) and (d) shall cease  (except that if a  Distribution  of Netco has
occurred,  then the parents or their  Affiliates  shall remain  shareholders  or
members of Netco). The Non-Competition Undertakings and Sections 11.12 and 11.13
shall, in such event, be reinstated with respect to the Non-Bankrupt  Parent and
its Group  Companies;  provided,  that such provisions shall be thereupon waived
with respect to any activities that were undertaken by the  Non-Bankrupt  Parent
or any of its Group  Companies  during the  continuance of the Bankruptcy of the
Bankrupt  Parent  that  would  otherwise  have  violated  Article 11 but for the
application of Section 27.1(c)(i) or 27.1(d).

     27.2 Economic  Interest.  Notwithstanding  the  provisions of Section 27.1,
upon the occurrence  and during the  continuance of a Bankruptcy of the Bankrupt
Parent,  the  Bankrupt  Parent  shall  continue  to be  entitled  to an economic
interest  in  the  Newco  Group  and  to  receive  any  and  all  dividends  and
distributions  paid or made by the members of the Newco Group and  DirectorCo to
its shareholders or members.

<PAGE>

                                   ARTICLE 28
                                  MISCELLANEOUS

     28.1 No  Breach of MCI or  WorldCom  Agreements;  Compliance  with Laws and
Licenses.

     (a) Nothing in this  Agreement or in any of the  Transaction  Agreements is
intended to require (i) AT&T, BT, Concert or any of their Affiliates to take any
action  that would  breach  any  provision,  including  any  confidentiality  or
non-compete  provision,  of any agreement  between or among any of the foregoing
and MCI or WorldCom or any of their  Affiliates,  or (ii) AT&T, BT, Concert,  or
any of their  Affiliates  to take any action  that would  breach any  applicable
provision of any Applicable Law or license.

     (b)  No  restriction  in  this  Agreement  or in  any  other  agreement  or
arrangement  of which  it  forms a part  which  is  registrable  under  the U.K.
Restrictive  Trade  Practices  Act 1976 or 1977 (the "RTP Acts") shall come into
force  until  the day  after  particulars  of this  Agreement  and of any  other
agreement  or  arrangement  of which it forms  part have been  furnished  to the
Director General of Fair Trading in accordance with the RTP Acts. The provisions
of this  Section  28.1(b)  shall  not  apply  if this  Agreement  and any  other
agreement or arrangement of which it forms part either:

     (i)  falls  within  one  of  the  classes  of   non-notifiable   agreements
established by statutory  instrument  from time to time under the RTP Acts or by
any other statute or statutory instrument, or

     (ii) is not capable of being furnished due to the repeal of the RTP Acts.

     28.2 Export Control.

     (a) Each  party  hereto  acknowledges  that  any  products,  software,  and
technical information  (including services and training) to be provided by AT&T,
BT or Thistle BV or any of their  respective  Affiliates in accordance with this
Agreement or any other Transaction Agreement are subject to U.S. export laws and
regulations  and any use or transfer of such products,  software,  and technical
information must be authorized under those  regulations.  Each party agrees that
it shall not, and that it shall cause its  Affiliates  not to, use,  distribute,
transfer, or transmit any such products, software or technical information (even
if  incorporated  into other  products)  except in compliance  with U.S.  export
regulations.  Each party agrees that neither it nor any of its Affiliates  will,
directly or indirectly, "export" or "reexport" the following items to any of the
countries  listed  in  Section  [4.3]  of the IPR  Agreement:  (x)  software  or
"technical data" disclosed or provided to them by AT&T or any of its Affiliates;
or (y) the direct product of such software or "technical data."

     (b) The  commitments  in  Section  28.2(a)  apply  unless  (x)  the  export
administration regulations of the U.S. Department of Commerce explicitly permits
the  export  or  reexport  or (y) the  office of  export  licensing  of the U.S.
Department of Commerce first grants authorization in writing.

     (c)  As  used  in  this  Section  28.2,  "technical  data,"  "development,"
"production," "use," "transfer,"  "release," "export," and "reexport" shall have
the respective meanings assigned to them in the IPR Agreement.

<PAGE>

     (d) The  obligations  under this Section shall survive  termination of this
Agreement  and the  consummation  of the Put,  the Call and the  dissolution  of
Thistle BV.

     28.3  Notices.  Any notice or other  communication  required  or  permitted
hereunder  shall be in  writing  and  shall  be  delivered  personally,  sent by
facsimile transmission (with confirmation of receipt) or sent by internationally
recognized  courier service,  postage  prepaid.  Any such notice shall be deemed
given when so  delivered  personally  or, if sent by  facsimile,  at the time of
receipt of a legible  copy  thereof  or, if sent by  internationally  recognized
courier service,  three days after the date of deposit with the courier service,
postage prepaid, and shall be sent as follows:

     (i) if to the AT&T Parties, to:

                                    AT&T Corp.
                                    Norfolk House
                                    31 St. James Square
                                    London SW1Y 4JR
                                    England
                                    Attention:       Walter G. DeSocio, Esq.
                                    Facsimile No.:   011-44-171-925-8232

                                    with a copy to:

                                    Wachtell, Lipton, Rosen & Katz
                                    51 West 52nd Street
                                    New York, New York 10019
                                    United States of America
                                    Attention:       Richard D. Katcher, Esq.
                                                     Stephanie J. Seligman, Esq.
                                    Facsimile No.:   212-403-2000

     (ii)     if to the BT Parties, to:

                                    British Telecommunications plc
                                    81 Newgate Street
                                    London ECIA 7AJ
                                    England
                                    Attention:       Jack Greenberg, Esq.
                                    Facsimile No.:   011-44-171-356-5608

                                    with a copy to:

                                    Paul, Weiss, Rifkind, Wharton & Garrison
                                    1285 Avenue of the Americas
                                    New York, New York 10019-6064
                                    United States of America
                                    Attention:       Toby S. Myerson, Esq.
                                    Facsimile No.:   212-757-3990

                                    and:

                                    Bird & Bird
                                    90 Fetter Lane
                                    London EC4A1JP
                                    England
                                    Attention:       David Kerr, Esq.
                                    Facsimile No.:   011-44-171-415-6111

<PAGE>

     (iii) if to Thistle BV, to:

                                    Thistle B.V.
                                    c/o British Telecommunications plc
                                    81 Newgate Street
                                    London ECIA 7AJ
                                    England
                                    Attention:       Jack Greenberg, Esq.
                                    Facsimile No.:   011-44-171-356-5608

                                    with a copy to:

                                    Paul, Weiss, Rifkind, Wharton & Garrison
                                    1285 Avenue of the Americas
                                    New York, New York 10019-6064
                                    United States of America
                                    Attention:       Toby S. Myerson, Esq.
                                    Facsimile No.:   212-757-3990

                                    and:

                                    Bird & Bird
                                    90 Fetter Lane
                                    London EC4A1JP
                                    England
                                    Attention:       David Kerr, Esq.
                                    Facsimile No.:   011-44-171-415-6111

     Any party may by notice given in  accordance  with this Section 28.3 to the
other parties designate another address,  facsimile number or Person for receipt
of notices hereunder.

     28.4 No Publicity.  Except as required by law, the parents shall consult in
advance of all public  announcements  in respect of the  subject  matter of this
Agreement  and  the  other  Transaction  Agreements.  The  content  of any  such
announcements  shall require the agreement of the parents prior to  publication,
such  agreement  not to be  unreasonably  withheld  or delayed in the context of
announcements  that are  required to be made in order to comply with any listing
agreement with, or the rules or regulations of, any securities exchange on which
securities  of a parent  or any of its  Affiliates  are  listed or traded or any
other regulatory requirements. The parents shall establish a common press policy
with respect to the matters contemplated hereby.

     28.5 Entire Agreement.  This Agreement  (including the Exhibits,  Schedules
and Annexes hereto),  together with the other  Transaction  Agreements,  and the
other agreements  contemplated hereby and thereby,  contain the entire agreement
among the  parties  with  respect to the  transactions  contemplated  hereby and
supersede  the Term Sheet and all prior term sheets,  discussions,  negotiations
and  agreements,   written  or  oral,  with  respect  thereto  (other  than  the
Confidentiality Agreements).

     28.6 Waivers and Amendments;  Preservation of Remedies.  This Agreement may
be amended, superseded,  canceled, renewed or extended, and the terms hereof may
be waived, only by a written instrument signed by the parties or, in the case of
a waiver, by the party waiving compliance.  No delay on the part of any party in
exercising  any right,  power or privilege  hereunder  shall operate as a waiver
thereof,  nor shall any waiver on the part of any party of any such right, power
or  privilege,  nor any single or partial  exercise of any such right,  power or
privilege,  preclude any further  exercise  thereof or the exercise of any other
such right, power or privilege.

<PAGE>

     28.7  Severability.  Subject to the proviso in Sections  18.3 and 18.4,  in
case  any  provision  of this  Agreement  shall  be  held  invalid,  illegal  or
unenforceable in a jurisdiction, such provision shall be modified or deleted, as
to the  jurisdiction  involved,  only to the extent necessary to render the same
valid, legal and enforceable,  and the validity,  legality and enforceability of
the  remaining  provisions  hereof  shall not in any way be affected or impaired
thereby nor shall the validity,  legality or enforceability of such provision be
affected thereby in any other jurisdiction.

     28.8 No Assignment. This Agreement shall be binding upon and shall inure to
the benefit of and be enforceable by the parties and their respective successors
and permitted assigns;  provided, that, other by operation of law in the case of
a Business  Combination  and  except as  otherwise  expressly  set forth in this
Agreement,  neither the rights nor the  obligations of any party may be assigned
or delegated without the prior written consent of the other parties, except that
either  parent  may  assign  any or all of its  rights  hereunder  to any of its
wholly-owned Subsidiaries. For the purposes of clarification, none of Thistle BV
or the Newco Subsidiaries shall be deemed to be an Affiliate of either parent.

     28.9 No Third Party Beneficiaries. This Agreement is not intended to be for
the benefit of and shall not be  enforceable  by any Person which is not a party
hereto, except for the indemnification provisions contained in Article 25, which
provisions  may be enforced by any AT&T  Indemnified  Parties or BT  Indemnified
Parties referred to therein.

     28.10 Governing Law. This Agreement shall be governed by, and construed and
interpreted in accordance  with, the laws of the State of New York applicable to
contracts made and to be performed entirely within such State.

     28.11  Counterparts.  This  Agreement  may be  executed  in any  number  of
counterparts,  each of which shall be deemed to be an original, but all of which
together shall constitute one instrument. Signatures delivered by telecopy shall
have the same effect as the manual original signatures.

<PAGE>

     IN WITNESS  WHEREOF,  this Agreement has been executed and delivered by the
parties set forth below as of the date first written above. AT&T CORP.


                                       By                            
                                       Name:
                                       Title:

                                       VLT CORPORATION


                                       By
                                       Name:
                                       Title:


<PAGE>

                                       BRITISH TELECOMMUNICATIONS PLC


                                       By
                                       Name:
                                       Title:

                                       BT (NETHERLANDS) HOLDINGS B.V.


                                       By
                                       Name:
                                       Title:

                                       THISTLE B.V.


                                       By
                                       Name:
                                       Title:



                                                                       Form 10-Q
                                                                    For the Nine
                                                                    Months Ended
                                                              September 30, 1998


                                   AT&T Corp.
                Computation of Ratio of Earnings to Fixed Charges

                              (Dollars in Millions)
                                   (Unaudited)




Income from Continuing Operations
  Before Income Taxes .................................     $4,991

Less Interest Capitalized during
  the Period...........................................        151

Add Equity Investment Losses, net of distributions
  of Less than 50% Owned Affiliates....................        173

Add Fixed Charges......................................        683

Total Earnings from Continuing
  Operations Before Income Taxes
  and Fixed Charges....................................     $5,696



Fixed Charges

Total Interest Expense Including Capitalized Interest..     $  473

Interest Portion of Rental Expense.....................        210

  Total Fixed Charges..................................     $  683

Ratio of Earnings to Fixed Charges.....................        8.3

<TABLE> <S> <C>


<ARTICLE>                     5
<LEGEND>

This  schedule  contains  summary  financial   information  extracted  from  the
unaudited consolidated balance sheet of AT&T Corp. at September 30, 1998 and the
unaudited  consolidated  statement  of income for the  nine-month  period  ended
September  30,  1998 and is  qualified  in its  entirety  by  reference  to such
financial statements.

</LEGEND>
<MULTIPLIER>                                   1,000,000
       
<S>                                            <C>
<PERIOD-TYPE>                                  9-MOS
<FISCAL-YEAR-END>                              DEC-31-1998
<PERIOD-START>                                 JAN-01-1998
<PERIOD-END>                                   SEP-30-1998
<CASH>                                         4,190
<SECURITIES>                                   0
<RECEIVABLES>                                  10,008
<ALLOWANCES>                                   1,029
<INVENTORY>                                    0
<CURRENT-ASSETS>                               15,563
<PP&E>                                         49,811
<DEPRECIATION>                                 24,718
<TOTAL-ASSETS>                                 58,161
<CURRENT-LIABILITIES>                          14,723
<BONDS>                                        6,079
                          0
                                    0
<COMMON>                                       1,754
<OTHER-SE>                                     22,313
<TOTAL-LIABILITY-AND-EQUITY>                   58,161
<SALES>                                        0
<TOTAL-REVENUES>                               39,695
<CGS>                                          0
<TOTAL-COSTS>                                  35,551
<OTHER-EXPENSES>                               0
<LOSS-PROVISION>                               1,050
<INTEREST-EXPENSE>                             322
<INCOME-PRETAX>                                4,991
<INCOME-TAX>                                   1,840
<INCOME-CONTINUING>                            3,151
<DISCONTINUED>                                 1,300
<EXTRAORDINARY>                                (137)
<CHANGES>                                      0
<NET-INCOME>                                   4,314
<EPS-PRIMARY>                                  2.40
<EPS-DILUTED>                                  2.38
        


</TABLE>


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