TELEWEST COMMUNICATIONS PLC /NEW/
10-K/A, 1998-06-19
CABLE & OTHER PAY TELEVISION SERVICES
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                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549
                              ---------------------

                                   FORM 10-K/A
                                 AMENDMENT NO.1
(Mark One)

[X]           ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE
                         SECURITIES EXCHANGE ACT OF 1934
                   For the Fiscal Year Ended December 31, 1997

                                       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: 0-26840

                           TELEWEST COMMUNICATIONS PLC
             (Exact Name of Registrant as Specified in Its Charter)

                              ---------------------

 ENGLAND AND WALES                                                 N/A
  (State or Other                                           (I.R.S. Employer
  Jurisdiction of                                        Identification Number)
  Incorporation or
   Organization)
                              GENESIS BUSINESS PARK
                                  ALBERT DRIVE
                             WOKING, SURREY GU21 5RW
                                 UNITED KINGDOM
                               011-44-1483-750-900
                    (Address of Principal Executive Offices)


           Securities Registered Pursuant to Section 12(b) of the Act:

                                      NONE


           Securities Registered Pursuant to Section 12(g) of the Act:

                     AMERICAN DEPOSITARY SHARES EVIDENCED BY
                 AMERICAN DEPOSITARY RECEIPTS, EACH REPRESENTING
                         TEN ORDINARY SHARES OF 10P EACH
                                (Title of Class)

                           ORDINARY SHARES OF 10P EACH
                                (Title of Class)


BY CHECK MARK WHETHER THE REGISTRANT (1) HAS FILED ALL REPORTS REQUIRED TO BE
FILED BY SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 DURING THE
PRECEDING 12 MONTHS (OR FOR SUCH SHORTER PERIOD THAT THE REGISTRANT WAS REQUIRED
TO FILE SUCH REPORTS), AND (2) HAS BEEN SUBJECT TO SUCH FILING REQUIREMENTS FOR
THE PAST 90 DAYS. YES |X| NO [ ]

     INDICATE BY CHECK MARK IF DISCLOSURE OF DELINQUENT FILERS PURSUANT TO ITEM
405 OF REGULATION S-K IS NOT CONTAINED HEREIN, AND WILL NOT BE CONTAINED, TO THE
BEST OF REGISTRANT'S KNOWLEDGE, IN DEFINITIVE PROXY OR INFORMATION STATEMENTS
INCORPORATED BY REFERENCE IN PART III OF THIS FORM 10-K OR ANY AMENDMENT TO THIS
FORM 10-K. [ ]


     AT MARCH 2, 1998, 927,567,600 ORDINARY SHARES OF 10P EACH WERE OUTSTANDING
AND THE AGGREGATE MARKET VALUE OF THE ORDINARY SHARES ON THE LONDON STOCK
EXCHANGE ON SUCH DATE HELD BY NON-AFFILIATES OF THE REGISTRANT WAS APPROXIMATELY
(POUND)194,764,583.


                       DOCUMENTS INCORPORATED BY REFERENCE


     PORTIONS OF THE REGISTRANT'S ANNUAL REPORT TO SHAREHOLDERS FOR THE FISCAL
YEAR ENDED DECEMBER 31, 1997 ARE INCORPORATED BY REFERENCE INTO PART II.
PORTIONS OF THE REGISTRANT'S DEFINITIVE PROXY STATEMENT, DATED MARCH 31, 1998,
TO BE DELIVERED TO SHAREHOLDERS IN CONNECTION WITH THE 1998 ANNUAL GENERAL
MEETING OF SHAREHOLDERS, ARE INCORPORATED BY REFERENCE INTO PART III.

<PAGE>
The undersigned registrant hereby amends the following items, financial
statements, exhibits or other portions of its Annual Report on Form 10-K for the
fiscal year ended December 31, 1997:

ITEM 14. EXHIBITS, FINANCIAL STATEMENT SCHEDULES, AND REPORTS ON FORM 8-K

The following exhibits are being amended pursuant to conversations with the
Securities and Exchange Commission concerning the confidential treatment of
certain portions of such exhibits.

<TABLE>
<S>                      <C>
         10.31      --    General Purchasing Agreement, dated March 1, 1993, among Telewest CGL, various
                          entities related to Telewest CGL, and Northern Telecom Europe Limited (the "General
                          Purchasing Agreement").

         10.60      --     Amendments number 1 through 9 to the General Purchasing Agreement filed as Exhibit
                           10.31.

     3.  EXHIBITS AND REPORTS ON FORM 8-K

     (a)  Exhibits

         3.1        --     Memorandum of Association of the Company. (Incorporated by reference to the
                           Company's Registration Statement on Form 8-B, filed with the Securities and
                           Exchange Commission on September 22, 1995, as amended).

         3.2        --     Articles of Association of the Company. (Incorporated by reference to the
                           Company's Registration Statement on Form 8-B, filed with the Securities and
                           Exchange Commission on September 22, 1995, as amended).

         4.1        --     Amended and Restated Deposit Agreement, dated as of November 30, 1994 (as amended
                           as of October 2, 1995), among the Company, The Bank of New York, as Depositary,
                           and the holders from time to time of American Depositary Receipts issued
                           thereunder.  (Incorporated by reference to the Company's 1995 Annual Report on
                           Form 10-K filed with the Securities and Exchange Commission on April 1, 1996).

         4.2        --     Form of American Depositary Receipt (included in Exhibit 4.1).

         4.3        --     Senior Debenture Indenture, dated as of October 3, 1995, between the Company and
                           The Bank of New York, as Trustee. (Incorporated by reference to the Company's 1995
                           Annual Report on Form 10-K filed with the Securities and Exchange Commission on
                           April 1, 1996).

         4.4        --     Senior Discount Debenture Indenture, dated as of October 3, 1995,  between the
                           Company and The Bank of New York, as Trustee. (Incorporated by reference to the
                           Company's 1995 Annual Report on Form 10-K filed with the Securities and Exchange
                           Commission on April 1, 1996).

         4.5        --     Form of Senior Debenture (included in Exhibit 4.3).

         4.6        --     Form of Senior Discount Debenture (included in Exhibit 4.4).

         4.7        --     Deposit Agreement, dated as of October 3, 1995, between the Company and The Bank
                           of New York, as Book-Entry Depositary. (Incorporated by reference to the Company's
                           1995 Annual Report on Form 10-K filed with the Securities and Exchange Commission
                           on April 1, 1996).
<PAGE>
         10.1       --     Relationship Agreement, dated as of November 22, 1994, by and among Old Telewest,
                           certain subsidiaries of TCI and certain subsidiaries of U S WEST. (Incorporated by
                           reference to Old Telewest's 1994 Annual Report on Form 10-K filed with the
                           Securities and Exchange Commission on March 31, 1995).

         10.2       --     Shareholders Agreement, entered into as of November 22, 1994, between certain
                           subsidiaries of TCI and certain subsidiaries of U S WEST. (Incorporated by
                           reference to Old Telewest's 1994 Annual Report on Form 10-K filed with the
                           Securities and Exchange Commission on March 31, 1995).

         10.3       --     Registration Rights Agreement, dated October 3, 1995, among the Company, the TCI
                           Affiliate, the U S WEST Affiliates, the SBC Affiliates and the Cox Affiliate.
                           (Incorporated by reference to the Company's 1995 Annual Report on Form 10-K filed
                           with the Securities and Exchange Commission on April 1, 1996).

         10.4       --     Co-Operation Agreement, dated October 3, 1995, between the SBC Affiliates and the
                           Cox Affiliate. (Incorporated by reference to the Company's 1995 Annual Report on
                           Form 10-K filed with the Securities and Exchange Commission on April 1, 1996).

         10.5       --     Share Dealing Agreement, dated October 3, 1995, among the TCI Affiliate, the U S
                           WEST Affiliates, the Company and the SBC Affiliates. (Incorporated by reference to
                           the Company's 1995 Annual Report on Form 10-K filed with the Securities and
                           Exchange Commission on April 1, 1996).

         10.6       --     Tax Deed, dated November 22, 1994, between TCI International Holdings, Inc., U S
                           WEST Holdings and Old Telewest. (Incorporated by reference to Old Telewest's 1994
                           Annual Report on Form 10-K filed with the Securities and Exchange Commission on
                           March 31, 1995).

         10.7       --     Trademark License Agreement, effective as of November 22, 1994, between Old
                           Telewest and U S WEST.  (Incorporated by reference to Old Telewest's 1994 Annual
                           Report on Form 10-K filed with the Securities and Exchange Commission on March 31,
                           1995).

         10.8       --     Tradename Agreement, effective as of November 22, 1994, between Old Telewest, TCI
                           and TCI/U S WEST Cable Communications Group. (Incorporated by reference to Old
                           Telewest's 1994 Annual Report on Form 10-K filed with the Securities and Exchange
                           Commission on March 31, 1995).

         10.9       --     Tax Deed, dated October 3, 1995, among the Company, the SBC Affiliates and the Cox
                           Affiliate. (Incorporated by reference to the Company's 1995 Annual Report on Form
                           10-K filed with the Securities and Exchange Commission on April 1, 1996).

         10.10      --     Consultant Agreement for Operational Assistance, dated July 17, 1992, among
                           Birmingham Cable Corporation Limited ("BCCL"), Birmingham Cable Limited ("BCL")
                           and Telewest Communications Group Limited ("Telewest CGL"). (Incorporated by
                           reference to Old Telewest's Registration Statement on Form S-1 filed with the
                           Securities and Exchange Commission on April 29, 1994, as amended (Registration No.
                           33-78398)).
<PAGE>
         10.11      --     Supplemental Agreement, dated April 8, 1994, relating to the Consultant Agreement
                           referred to in Exhibit 10.5 (Incorporated by reference to Old Telewest's
                           Registration Statement on Form S-1 filed with the Securities and Exchange
                           Commission on April 29, 1994, as amended (Registration No. 33-78398)).

         10.12      --     Management Agreement, dated April 25, 1990, among BCCL, BCL, US WEST Holdings and
                           Comcast Cablevision of Birmingham Inc. (Incorporated by reference to Old
                           Telewest's Registration Statement on Form S-1 filed with the Securities and
                           Exchange Commission on April 29, 1994, as amended (Registration No. 33-78398)).

         10.13      --     Assignment and Amendment Agreement, dated August 5, 1992, relating to the
                           Management Agreement referred to in Exhibit 10.7 (Incorporated by reference to Old
                           Telewest's Registration Statement on Form S-1 filed with the Securities and
                           Exchange Commission on April 29, 1994, as amended (Registration No. 33-78398)).

         10.14      --     Consultant Agreement, dated August 16, 1989, between Cable London plc and U S WEST
                           Cable Communications Limited. (Incorporated by reference to Old Telewest's
                           Registration Statement on Form S-1 filed with the Securities and Exchange
                           Commission on April 29, 1994, as amended (Registration No. 33-78398)).

         10.15      --     Consultant Agreement for Technical Assistance, dated July 15, 1992, among Cable
                           Corporation, Windsor Television Limited, Middlesex Cable Limited and Telewest CGL.
                           (Incorporated by reference to Old Telewest's Registration Statement on Form S-1
                           filed with the Securities and Exchange Commission on April 29, 1994, as amended
                           (Registration No. 33-78398)).

         10.16      --     Cable Affiliation Agreement, dated December 14, 1993, between Cable Programme
                           Partners - Limited Partnership, Telewest CGL and other parties signatory thereto.
                           (Incorporated by reference to Old Telewest's Registration Statement on Form S-1
                           filed with the Securities and Exchange Commission on April 29, 1994, as amended
                           (Registration No. 33-78398)).

         10.17      --     Agreement, dated October 1, 1993, among Alan Stewart MacDonald Robinson, Jack
                           Forrest Gill, Raman Subba Row Limited and TUCCI. (Incorporated by reference to Old
                           Telewest's Registration Statement on Form S-1 filed with the Securities and
                           Exchange Commission on April 29, 1994, as amended (Registration No. 33-78398)).

         10.18      --     Co-ownership Agreement, dated March 12, 1990, between U S WEST Holdings and
                           Comcast Cablevision of Birmingham, Inc. (Incorporated by reference to Old
                           Telewest's Registration Statement on Form S-1 filed with the Securities and
                           Exchange Commission on April 29, 1994, as amended (Registration No. 33-78398)).

         10.19      --     Letter, dated April 29, 1992, relating to the Co-ownership Agreement referred to
                           in Exhibit 10.13. (Incorporated by reference to Old Telewest's Registration
                           Statement on Form S-1 filed with the Securities and Exchange Commission on April
                           29, 1994, as amended (Registration No. 33-78398)).
<PAGE>
         10.20      --     Letter, dated November 27, 1992, relating to the Co-ownership Agreement referred
                           to in Exhibit 10.13.  (Incorporated by reference to Old Telewest's Registration
                           Statement on Form S-1 filed with the Securities and Exchange Commission on April
                           29, 1994, as amended (Registration No. 33-78398)).

         10.21      --     Agreement to License and Provide Consulting Services, effective as of November 22,
                           1994, between Old Telewest and an affiliate of U S WEST. (Incorporated by
                           reference to Old Telewest's 1994 Annual Report on Form 10-K filed with the
                           Securities and Exchange Commission on March 31, 1995).

         10.22      --     Agreement, dated December 4, 1987, between United Cable Television Corporation on
                           behalf of itself and United Artists Communications, Inc. and Trans-Global (U.K.)
                           Limited. (Incorporated by reference to Old Telewest's Registration Statement on
                           Form S-1 filed with the Securities and Exchange Commission on April 29, 1994, as
                           amended (Registration No. 33-78398)).

         10.23      --     Agreement to License and Provide Consulting Services, effective as of November 22,
                           1994, between Old Telewest and TCI. (Incorporated by reference to Old Telewest's
                           1994 Annual Report on Form 10-K filed with the Securities and Exchange Commission
                           on March 31, 1995).

         10.24      --     Novation Agreement relating to Birmingham Cable, dated November 21, 1994, among
                           General Cable, TUCCI, U S WEST Holding and other parties signatory thereto.
                           (Incorporated by reference to Old Telewest's 1994 Annual Report on Form 10-K filed
                           with the Securities and Exchange Commission on March 31, 1995).

         10.25      --     Subscription and Shareholders Agreement, dated January 30, 1995, among Videotron
                           Corporation Limited, United Artists Communications (London South) Limited, Cable
                           London, Elt Acquisition Company Limited, Nynex CableComms Limited, Cable
                           Corporation, London Interconnect Limited, Independent Cable Sales Limited, London
                           Interconnect PPV Limited and London Interconnect Limited. (Incorporated by
                           reference to the Company's Registration Statement on Form 8-B filed with the
                           Securities and Exchange Commission on September 22, 1995, as amended).

         10.26      --     Form of BT Interconnect Agreement, a copy of which was executed by BT and various
                           of the Company's affiliated entities.  (Incorporated by reference to the Company's
                           1997 Annual Report on Form 10-K filed with the Securities and Exchange Commission
                           on March 31, 1997)

         10.27      --     Interconnection Agreement, dated July 15, 1994, between Mercury and United Artists
                           Communications (Scotland) Limited. (Incorporated by reference to Old Telewest's
                           Registration Statement on Form S-1 filed with the Securities and Exchange
                           Commission on April 29, 1994, as amended (Registration No. 33-78398)). **

         10.28      --     Mercury Marketing and Operations Agreement, dated August 10, 1993, between
                           Telewest CGL and Mercury. (Incorporated by reference to Old Telewest's
                           Registration Statement on Form S-1 filed with the Securities and Exchange
                           Commission on April 29, 1994, as amended (Registration No. 33-78398)). **
<PAGE>
         10.29      --     Letter Agreement, dated August 23, 1995, between SBCC and Mercury. (Incorporated
                           by reference to the Company's Registration Statement on Form 8-B filed with the
                           Securities and Exchange Commission on September 22, 1995, as amended). ***

         10.30      --     Programming Agreement, dated June 30, 1995, among British Sky Broadcasting
                           Limited, British Sky Broadcasting Group plc and Old Telewest. (Incorporated by
                           reference to Old Telewest's Quarterly Report on Form 10-Q for the six months ended
                           June 30, 1995).***

         10.31      --     General Purchasing Agreement, dated March 1, 1993, among Telewest CGL, various 
                           entities related to Telewest CGL, and Northern Telecom Europe Limited.*+

         10.32      --     Purchase Agreement, dated August 27, 1993, between Southwestern Bell International
                           Holdings and GPT Limited. (Incorporated by reference to the Company's Registration
                           Statement on Form 8-B filed with the Securities and Exchange Commission on
                           September 22, 1995, as amended).

         10.33      --     Network Services Center Agreement, dated May 16, 1994, among Telewest CGL, BCCL,
                           Cable London, and certain other signatories thereto. (Incorporated by reference to
                           Old Telewest's Registration Statement on Form S-1 filed with the Securities and
                           Exchange Commission on April 29, 1994, as amended (Registration No. 33-78398)).

         10.34      --     The Old Telewest Restricted Share Scheme. (Incorporated by reference to Old
                           Telewest's 1994 Annual Report on Form 10-K filed with the Securities and Exchange
                           Commission on March 31, 1995).

         10.35      --     The Telewest 1995 Restricted Share Scheme. (Incorporated by reference to the
                           Company's Registration Statement on Form 8-B filed with the Securities and
                           Exchange Commission on September 22, 1995, as amended).

         10.36      --     The Old Telewest Sharesave Scheme. (Incorporated by reference to Old Telewest's
                           1994 Annual Report on Form 10-K filed with the Securities and Exchange Commission
                           on March 31, 1995).

         10.37      --     The Telewest 1995 Sharesave Scheme. (Incorporated by reference to the Company's
                           Registration Statement on Form 8-B filed with the Securities and Exchange
                           Commission on September 22, 1995, as amended).

         10.38      --     The Old Telewest Executive Share Option Scheme No. 1. (Incorporated by reference
                           to Old Telewest's 1994 Annual Report on Form 10-K filed with the Securities and
                           Exchange Commission on March 31, 1995).

         10.39      --     The Telewest 1995 Executive Share Option Scheme No. 1. (Incorporated by reference
                           to the Company's Registration Statement on Form 8-B filed with the Securities and
                           Exchange Commission on September 22, 1995, as amended).

         10.40      --     The Old Telewest Executive Share Option Scheme No. 2. (Incorporated by reference
                           to Old Telewest's 1994 Annual Report on Form 10-K filed with the Securities and
                           Exchange Commission on March 31, 1995).

         10.41       --    The Telewest 1995 Executive Share Option Scheme No. 2. (Incorporated by reference
                           to the Company's Registration Statement on Form 8-B filed with the Securities and
                           Exchange Commission on September 22, 1995, as amended).
<PAGE>
         10.42       --    The Old Telewest Share Participation Scheme. (Incorporated by reference to Old
                           Telewest's 1994 Annual Report on Form 10-K filed with the Securities and Exchange
                           Commission on March 31, 1995).

         10.43      --     The Telewest 1995 Share Participation Scheme. (Incorporated by reference to the
                           Company's Registration Statement on Form 8-B filed with the Securities and
                           Exchange Commission on September 22, 1995, as amended).

         10.44      --     Executive Secondment Agreement, dated November 21, 1994, between
                           U S WEST Overseas and Telewest CGL (identical agreements were entered into between
                           an affiliate of TCI and Telewest CGL). (Incorporated by reference to Old
                           Telewest's 1994 Annual Report on Form 10-K filed with the Securities and Exchange
                           Commission on March 31, 1995).

         10.45      --     Form of Executive Secondment Agreement, dated August 10, 1995, between the Company
                           and the SBC Affiliates. (Incorporated by reference to the Company's Registration
                           Statement on Form 8-B filed with the Securities and Exchange Commission on
                           September 22, 1995, as amended).

         10.46      --     Form of Executive Secondment Agreement, dated August 10, 1995, between the Company
                           and the Cox Affiliate. (Incorporated by reference to the Company's Registration
                           Statement on Form 8-B filed with the Securities and Exchange Commission on
                           September 22, 1995, as amended).

         10.49      --     Employment Agreement, dated November 21, 1994, between Stephen J. Davidson and
                           Telewest CGL. (Incorporated by reference to Old Telewest's 1994 Annual Report on
                           Form 10-K filed with the Securities and Exchange Commission on March 31, 1995).

         10.53      --     Employment Agreement, dated March 7, 1996, between Roger Wilson and Telewest CGL.
                           (Incorporated by reference to the Company's 1995 Annual Report on Form 10-K filed
                           with the Securities and Exchange Commission on April 1, 1996).

         10.54      --     Employment Agreement, dated February 16, 1996, between Bruce Langham and the
                           Telewest CGL. (Incorporated by reference to the Company's 1996 Annual Report on
                           Form 10-K filed with the Securities and Exchange Commission on March 28, 1997).
                           Add Charles Burdick and Von Valkenburg.

         10.55      --     Letter Agreement, dated September 30, 1996, between Bruce Langham and Telewest
                           CGL.  (Incorporated by reference to the Company's 1996 Annual Report on Form 10-K
                           filed with the Securities and Exchange Commission on March 28, 1997).

         10.56      --     Non-Executive Directors Appointment Letter, dated August 1, 1995 between the
                           Company and Anthony W.P. Stenham.  (Incorporated by reference to the Company's
                           1996 Annual Report on Form 10-K filed with the Securities and Exchange Commission
                           on March 28, 1997).
<PAGE>
         10.57      --     Non-Executive Directors Appointment Letter, dated August 1, 1995 between the
                           Company and Sir Gordon Borrie QC. (Incorporated by reference to the Company's 1996
                           Annual Report on Form 10-K filed with the Securities and Exchange Commission on
                           March 28, 1997).

         10.58      --     Non-Executive Directors Appointment Letter, dated August 1, 1995, between the
                           Company and Lord Griffiths of Fforestfach.  (Incorporated by reference to the
                           Company's 1996 Annual Report on Form 10-K filed with the Securities and Exchange
                           Commission on March 28, 1997).

         10.59      --     Loan Agreement, by and among Telewest Communications Networks Limited, as
                           borrower, The Bank of New York, CIBC Wood Gundy plc, Chase Investment Bank
                           Limited, NatWest Markets and The Toronto-Dominion Bank, as arrangers, and CIBC
                           Wood Gundy plc, as agent and security trustee, dated as of May 22, 1996, as
                           amended pursuant to an Amendment Agreement, dated as of May 31, 1996 and a Second
                           Amendment Agreement, dated as of August 2, 1996.  (Incorporated by reference to
                           the Company's Quarterly Report on Form 10-Q for the six months ended June 30,
                           1996).

         10.60      --     Amendments number 1 through 9 to the General Purchasing Agreement filed as Exhibit
                           10.31.*+

         10.61      --     Employment Agreement, dated August 7, 1997, between Charles Burdick and Telewest
                           CGL.

         13         --     The Company's 1997 Annual Report to Shareholders (only those portions of the
                           Company's 1997 Annual Report specifically incorporated by reference herein shall
                           be deemed filed by the Company herewith).

         21         --     List of Subsidiaries of the Company.  (Incorporated by reference to the Company's
                           1996 Annual Report on Form 10-K filed with the Securities and Exchange Commission
                           on March 28, 1997).

         27         --     Financial Data Schedule.

         99                -- Only those portions of the Company's 1998 Proxy
                           Statement expressly incorporated by reference herein
                           shall be deemed filed by the Company herewith.

</TABLE>

- ---------------------
*          Filed herewith

**         Portions of this agreement have been accorded confidential treatment
           by the Securities and Exchange Commission pursuant to Rule 406 of the
           Securities Act of 1933, as amended.

***        Portions of this agreement have been accorded confidential treatment
           by the Securities and Exchange Commission pursuant to Rule 24b-2 of
           the Securities Exchange Act of 1934, as amended.

+          Certain portions of this exhibit have been omitted pursuant to a
           request for confidential treatment, an application for which has been
           filed with the Securities and Exchange Commission.

(b)      Reports on Form 8-K.

         None.

<PAGE>
                                   SIGNATURES

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


                                             Telewest Communications plc

                                             By: /S/ CHARLES BURDICK
                                                 -------------------------------
                                                 Name: Charles Burdick
                                                 Title:  Group Finance Director



<PAGE>
       Pursuant to the requirements of the Securities Act of 1934, as amended,
this report has been signed by the following persons in the capacities and on
the dates indicated:

Signature                               Title                         Date
- ---------                               -----                         ----


          *                      Director                         June 18, 1998
- --------------------------
A. Gary Ames


                                 Director
- --------------------------
Lord Borrie


                                 Director
- --------------------------
Stephen M. Brett

                                 Director
- --------------------------
David Evans

          *                      Director                         June 18, 1998
- --------------------------
James O. Robbins

          *                      Director                         June 18, 1998
- --------------------------
Robert Shaner

                                 Director
- --------------------------
Anthony W.P. Stenham

          *                      Director and Acting Chief        June 18, 1998
- --------------------------       Executive Officer
David Van Valkenburg             (Principal Executive Officer)

/S/CHARLES BURDICK               Director and Group Finance       June 18, 1998
- --------------------------       Director
Charles Burdick                  (Principal Financial and 
                                 Accounting Officer)


*By: /S/ CHARLES BURDICK                                          June 18, 1988
     -----------------------
     Attorney-in-fact






           "[CONFIDENTIAL PORTION OMITTED]" INDICATES THAT INFORMATION
            HAS BEEN OMITTED AND FILED SEPARATELY WITH THE COMMISSION
                PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT












                                 TeleWest Group

                          General Purchasing Agreement








<PAGE>
<TABLE>
<CAPTION>
                                TABLE OF CONTENTS
===============================================================================================================
<S>                                                                                                         <C>

1 INTRODUCTION................................................................................................1

1.1. DEFINITIONS..............................................................................................1

2. GENERAL TERMS AND CONDITIONS...............................................................................3

2.1. TERM.....................................................................................................3
2.2. TERMINATION OF AGREEMENT FOR CONVENIENCE.................................................................3
2.3 CANCELLATION OF AGREEMENT FOR DEFAULT.....................................................................4
2.4. ORDER(S) ACCEPTANCE, MODIFICATION AND TERMINATION........................................................5
2.5. ORDER(S).................................................................................................6
2.6. REPORTS..................................................................................................6
2.7 INVOICES AND PAYMENTS.....................................................................................6
2.8 FINANCING.................................................................................................7
2.9 PRICE PROTECTION..........................................................................................7
2.10 TAXES....................................................................................................8
2.11 RECORDS..................................................................................................8
2.12. ACCEPTANCE..............................................................................................8
2.13 WARRANTIES:..............................................................................................9
2.14 HAZARDOUS MATERIALS AND SUBSTANCES......................................................................11
2.15 CONFIDENTIAL INFORMATION................................................................................11
2.16 INDEPENDENT CONTRACTOR..................................................................................12
2.17 INDEMNITY...............................................................................................13
2.18 PATENT, TRADEMARK, COPYRIGHT OR TRADE SECRET INDEMNIFICATION............................................13
2.19 INSURANCE...............................................................................................14
2.20 MANUALS AND DOCUMENTATION:..............................................................................15
2.21 COMPATIBILITY INFORMATION...............................................................................15
2.22 RIGHTS TO INVENTIONS, DISCOVERIES AND OTHER DEVELOPED INFORMATION.......................................15
2.23 PATENT LICENSES.........................................................................................16
2.24 RIGHT TO INSPECT........................................................................................16
2.25 RIGHT OF ACCESS.........................................................................................16
2.26 TRANSPORTATION AND SHIPPING.............................................................................16
2.27 DELIVERY................................................................................................16
2.28 DAMAGE TO PROPERTY......................................................................................16
2.29 SUBCONTRACTORS..........................................................................................17
2.30 ADVERTISING.............................................................................................17
2.31 PLANT AND WORK RULES....................................................................................17
2.32 FORCE MAJEURE...........................................................................................17
2.33 SETOFF..................................................................................................17
2.34 TIME IS OF ESSENCE......................................................................................17
2.35 ASSIGNMENT..............................................................................................18
2.36 USE NOT ACCEPTANCE......................................................................................18
2.37 WAIVER..................................................................................................18
2.38 COMPLIANCE WITH LAWS....................................................................................18
2.39 GOVERNING LAW...........................................................................................18
2.40 SEVERAL LIABILITY.......................................................................................18
2.41 NON-EXCLUSIVE AGREEMENT.................................................................................19
2.42 LIMITATION OF LIABILITY.................................................................................19
2.43 RE-EXPORT...............................................................................................19
2.44 REMEDIES CUMULATIVE.....................................................................................20
2.45 AMENDMENTS..............................................................................................20
2.46 SURVIVAL................................................................................................20
2.47 BUSINESS CONDUCT........................................................................................20
2.48 NOTICES.................................................................................................20

                                       i
<PAGE>
3 ACQUISITION OF PRODUCT(S)..................................................................................22

3.1 DETAILED ORDER(S) ACKNOWLEDGEMENT........................................................................22
3.2 QUALITY ASSURANCE AND INSPECTION.........................................................................22
3.3 SPECIFICATIONS...........................................................................................22
3.4 TITLE....................................................................................................23
3.5 RISK OF LOSS.............................................................................................23
3.6 FUTURE AVAILABILITY OF REPAIRS, REPLACEMENT PARTS, AND MAINTENANCE NOT COVERED UNDER WARRANTY............23
3.7 TECHNICAL SUPPORT........................................................................................24
3.8 MARKING..................................................................................................24
3.9 ENGINEERING SERVICES.....................................................................................24
3.10 INSTALLATIONS SERVICES..................................................................................24
3.11 TRAINING................................................................................................25
3.12 SOFTWARE................................................................................................25
3.13 SPECIAL TECHNICAL SERVICES..............................................................................27
3.14 ENTIRE AGREEMENT........................................................................................27
3.15 SIGNATURES..............................................................................................28

EXHIBIT A CUSTOMERS..........................................................................................32

A1 PARTNERSHIPS AND REGISTERED ADDRESSES TABLE...............................................................32

EXHIBIT B FAULT CLASSIFICATIONS..............................................................................33

B1 FAULT PRIORITY CLASSIFICATIONS............................................................................33
   B1.1 System problems are assigned one of five priority levels as follows..................................33
B2 SERVICE CONDITIONS AND RESOLUTION OBJECTIVES..............................................................33
   B2.1 E1 Degradation and/or Outage.........................................................................33
     B2.1.1 System Faults....................................................................................33
     B2.1.2 Resolution Objective:............................................................................33
   B2.2 E2 Potential Degradation and/or Outage:..............................................................33
   B2.3 S1 Service Affecting:................................................................................34
     B2.3.1 System Faults....................................................................................34
     B2.3.2 Resolution Objective.............................................................................34
   B2.4 S2 Intermittently Service Affecting..................................................................34
     B2.4.1 System Faults....................................................................................34
     B2.4.2 Resolution Objective.............................................................................35
   B2.5 NS Non-Service Affecting Conditions..................................................................35
     B2.5.1 System Faults....................................................................................35
     B2.5.2 Resolution Objective.............................................................................35

EXHIBIT C SWITCH PURCHASES...................................................................................36

C1 SCOPE.....................................................................................................36
C2 DEFINITIONS...............................................................................................36
C3 SUPPLIER'S OFFER..........................................................................................37
C4 PRICES AND DISCOUNTS......................................................................................37
C5 REMOTE CONCENTRATOR UNITS.................................................................................38
C6 INVOICING AND PAYMENT.....................................................................................39
C7 PURCHASE OBJECTIVES.......................................................................................40
C8 DELIVERY..................................................................................................41
C9 TECHNOLOGY OBSOLESCENCE...................................................................................41
C10 BELL NORTHERN RESEARCH RATIONALIZED INSTRUCTION SET COMPUTING PROCESSOR..................................41
C11 CABLEPHONE...............................................................................................41
C12 CABINETIZED LINE CONCENTRATOR EQUIPMENT RETROFIT.........................................................42
C13 DIGITAL ACCESS SIGNALLING SYSTEM II......................................................................42
C14 SUPPORT OF E1 LINKS......................................................................................42
C15 SPARES...................................................................................................42
C16 SUBSCRIBER PULSE METERING STRATEGY.......................................................................42
C17 SIGNAL SWITCHING POINT FUNCTIONALITY.....................................................................42
C18 [CONFIDENTIAL PORTION OMITTED]...........................................................................42

                                       ii
<PAGE>
C19 EMERGENCY REPLACEMENT....................................................................................42
C20 INITIAL SUPPORT..........................................................................................43
C21 GENERIC SOFTWARE.........................................................................................43
C22 PLANNING INFORMATION.....................................................................................44
C23 QUALITY..................................................................................................45
C24 TRAINING.................................................................................................45
C25 MARKETING................................................................................................46
C26 CONFIGURATION AND PRICING SYSTEM.........................................................................46
C27 ONGOING SUPPORT..........................................................................................46
C28 INTERVALS AND SCHEDULES..................................................................................46
C29 ONGOING SUPPORT FOR SOFTWARE RELEASES AFTER WARRANTY.....................................................47
C30 REPORTS..................................................................................................47
C31 ORDER AND CUSTOMER INFORMATION PROCESS FOR A NEW SWITCH..................................................47
C32 INSTALLATION.............................................................................................47

EXHIBIT C APPENDIX I.........................................................................................49

CI-1 SUPPLIER'S OFFER........................................................................................49

EXHIBIT C APPENDIX II........................................................................................50

CII-1 PRICE PER LINE.........................................................................................50
CII-2 TECHNICAL SUPPORT SERVICES TABLE.......................................................................57
CII-3 REPAIR & RETURN TABLE..................................................................................58

EXHIBIT C APPENDIX III.......................................................................................59

CIII-1 PRICE LIST TABLE......................................................................................59
CIII-2 UNIT PRICE LIST TABLE FOR NON-DISCOUNTABLE ITEMS......................................................71

EXHIBIT C APPENDIX IV........................................................................................72

CIV-1 TYPICAL DELIVERY SEQUENCE..............................................................................72
CIV-2 NT -- TELEWEST DMS 100 GENERIC PLAN.....................................................................76

[THIS PAGE INTENTIONALLY LEFT BLANK].........................................................................77


EXHIBIT D NETWORK OPERATION SUPPORT SYSTEM PURCHASES.........................................................78

D1 SCOPE.....................................................................................................79
D2 DEFINITIONS...............................................................................................79
D3 SUPPLIER'S OFFER..........................................................................................79
D4 IMPLEMENTATION SCHEDULE...................................................................................79
D5 NOS SYSTEM INTEGRATION....................................................................................80
D6 SWITCH MONITORING ANALYSIS SYSTEM DESCRIPTION.............................................................80
     D6.1 Customer Requirements..............................................................................80
   D6.2 Switching NOS Interface To Users.....................................................................80
   D6.3 Switching NOS Flexibility............................................................................80
   D6.4 Switching NOS Operations And Maintenance.............................................................80
   D6.5 Switching NOS Fault Tolerance........................................................................81
   D6.6 Switching NOS Interface Standards....................................................................81
   D6.7 Switching NOS Recovery Plan..........................................................................81
   D6.8 Switching NOS Communication Breakdown................................................................81
   D6.9 Switching NOS Overload Handling......................................................................81
   D6.10 Switching NOS Trouble Ticket Administration.........................................................82
   D6.11 Switching NOS Performance Measurement...............................................................82
   D6.12 Switching NOS On-Line Help/Documentation............................................................82
   D6.13 Switching NOS On-Line System Security...............................................................82
   D6.14 Additional items which need to be provided are:.....................................................82
D7 TRAFFIC DATA COLLECTION DESCRIPTION.......................................................................82
   D7.1 Interface to Users...................................................................................82
   D7.2 Operation and Maintenance............................................................................83
   D7.3 Interface Standards..................................................................................83


                                      iii
<PAGE>
   D7.4 Recovery Plan........................................................................................83
   D7.5 Performance Measurement..............................................................................83
   D7.6 On-Line Help/Documentation...........................................................................83
   D7.7 System Security......................................................................................83
   D7.8 Additional items which need to be provided are:......................................................83
D8 SERVICE ORDER PROCESSING SYSTEM DESCRIPTION...............................................................83
   D8.1 Interface to Other Associated Systems................................................................83
   D8.2 Operation and Maintenance............................................................................84
   D8.3 Interface Standards..................................................................................84
   D8.4 Recovery Plan........................................................................................84
   D8.5 Performance Measurement..............................................................................84
   D8.6 System Security......................................................................................84
   D8.7 Additional items which need to be provided are:......................................................84
D9 INTERCONNECT (ACCESS) BILLING SYSTEM (INCLUDING BILLING DATA COLLECTION AND DISTRIBUTION).................84
   D9.1 Interface to Other Associated Systems................................................................84
   D9.2 Operation and Maintenance............................................................................84
   D9.3 Interface Standards..................................................................................84
   D9.4 Recovery Plan........................................................................................85
   D9.5 Performance Measurement..............................................................................85
   D9.6 System Security......................................................................................85
   D9.7 Additional items which need to be provided are:......................................................85
D10 SUMMARY OF NOC SYSTEMS...................................................................................85
   D10.1 NOC Operational Support Systems.....................................................................85
   D10.2 Network Operations Support Systems Schematic........................................................86
D11 PRICE ASSUMPTIONS........................................................................................86
   D11.1 TeleWest OS System Assumptions......................................................................86
   D11.2 Introduction........................................................................................86
   D11.3 Assumptions.........................................................................................86
   D11.4 References..........................................................................................86

EXHIBIT D APPENDIX I.........................................................................................87

DI-1 NOS PURCHASES, PRICING..................................................................................87
DI-2.1. INTRODUCTIONS AND REFERENCES.........................................................................87
   DI-2.1.1 Introduction.....................................................................................87
   DI-2.1.2 Participants.....................................................................................87
   DI-2.1.3 TeleWest Business Position.......................................................................87
DI- 2.2 STATEMENT OF REQUIREMENTS............................................................................87
   DI-2.2.1 Timescales.......................................................................................87
   DI-2.2.2 Scale............................................................................................87
   DI-2.2.3. Volumes.........................................................................................87
   DI- 2.2.4. Polling Windows................................................................................88
   DI- 2.2.5. Input Communications...........................................................................88
   DI- 2.2.6. Output Communications..........................................................................88
   DI- 2.2.7. Transformation.................................................................................88
   DI- 2.2.8 Rating/Tariffs..................................................................................88
   DI- 2.2.9. Resilience.....................................................................................88
   DI- 2.2.10. Enquiry.......................................................................................88
   DI- 2.2.11. Alarms........................................................................................88
   DI- 2.2.12. Error correction..............................................................................89
   DI- 2.2.13. MMI...........................................................................................89
   DI- 2.2.14. Reports.......................................................................................89
   DI- 2.2.15. Audit.........................................................................................89
   DI- 2.2.16. Disaster Stand-by.............................................................................89
   DI- 2.2.17. Summary Diagram...............................................................................89
DI-2.3 KEY ASSUMPTIONS.......................................................................................89
DI-2.4 MAXIMUM BUDGETARY PRICE...............................................................................89
DI- 2.5  ICL COPYRIGHT.......................................................................................89
DI-3 INTENTIONALLY LEFT BLANK................................................................................90

                                       iv
<PAGE>
DI-4 INTELICOM SYSTEM........................................................................................90
   DI-4.1 Interconnect Accounting............................................................................90
   DI-4.2 Network Provisioning...............................................................................91
   DI-4.3 Introduction.......................................................................................91
   DI-4.4 Overview...........................................................................................91
     DI-4.4.1 Interconnect Accounting........................................................................91
     DI-4.4.2 Network Provisioning...........................................................................91
   DI-4.5 Qualifications.....................................................................................91
   DI-4.6 Services...........................................................................................92
   DI-4.7 Assumptions........................................................................................92
   DI-4.8 Pricing............................................................................................92
DI-5 PRISM SYSTEMS...........................................................................................92
DI-6 TELEWEST NETWORK SUPPORT SYSTEMS........................................................................92
   DI-6.1 Switch Monitoring and Analysis System..............................................................92
   DI-6.2 Traffic Data Collection System.....................................................................92
   DI-6.3 Service Order Processing System....................................................................93
   DI-6.4 Interconnect (Access) Billing......................................................................93
DI-7 SWITCHING SYSTEM DESCRIPTION............................................................................93
   DI-7.1 Interface to Users.................................................................................93
   DI-7.2 Flexibility........................................................................................93
   DI-7.3 Operations and Maintenance.........................................................................93
   DI-7.4 Fault Tolerance....................................................................................93
   DI-7.5 Interface Standards................................................................................93
   DI-7.6 Recovery Plan......................................................................................93
   DI-7.7 Communication Breakdown............................................................................93
   DI-7.8 Overload Handling..................................................................................94
   DI-7.9 Trouble Ticket Administration......................................................................94
   DI-7.10 Performance Measurement...........................................................................94
   DI-7.11 On-line Help/Documentation........................................................................94
   DI-7.12 System Security...................................................................................94
   DI-7.13 Additional items which need to be provided are:...................................................94
DI-8 TRAFFIC DATA COLLECTION DESCRIPTION.....................................................................94
   DI-8.1 Interface to Users.................................................................................94
   DI-8.2 Operation and Maintenance..........................................................................95
   DI-8.3 Interface Standards................................................................................95
   DI-8.4 Recovery Plan......................................................................................95
   DI-8.5 Performance Measurement............................................................................95
   DI-8.6 On-Line Help/Documentation.........................................................................95
   DI-8.7 System Security....................................................................................95
   DI-8.8 Additional items which need to be provided are:....................................................95
DI-9 NOC OPERATIONAL SUPPORT SYSTEMS.........................................................................95

EXHIBIT E FINANCING..........................................................................................96


Letter of Modification.........................................................................................
                      100

Appendix 1            Maximum Aggregate Purchases to be Financed............................................104
Appendix 2            Lease Purchase Agreement for Telewest Partnerships....................................105
Appendix 3            Lease Purchase Agreement for Windsor Television.......................................131
Appendix 4            Lease Purchase Agreement for Cable London and Birmingham..............................157

</TABLE>

                                       v
<PAGE>
1    Introduction

This Agreement, dated 1 March 1993, is made by and between the companies listed
under Exhibit A attached hereto and by this reference incorporated into this
Agreement and identified herein ("Customer"), and Northern Telecom Europe
Limited, having its registered office at IB Portland Place, London, W1N 3AA
acting through its Public Switching Division at Meridian House, 134 Bridge Road,
Maidenhead, Berks SL6 8DJ ("Supplier").

In consideration of the promises, mutual covenants and agreements contained
herein, the receipt and sufficiency of which are hereby acknowledged, Customer
and Supplier agree as follows:

1.1. Definitions

The terms defined in this Clause shall have the meanings set forth below
whenever they appear in this Agreement, unless (a) the context in which they are
used clearly requires a different meaning; or (b) a different definition is
described for a particular Clause or provision:

 1.1.1  "Acceptance" means Customer's written acknowledgement that Purchases
        (defined herein), procured hereunder conform to the Specifications and
        the requirements of the applicable Order(s) (defined herein). Acceptance
        is further described in the Clause entitled "Acceptance".

 1.1.2  "Acceptance Date" means the date that Customer acknowledges Acceptance.

 1.1.3  "Acceptance Period" means that time during which Customer determines if
        Purchases conform to the Specifications and the requirements of the
        applicable Order(s). Unless otherwise agreed, that time period will be:

    1.1.3.1For Product(s) (defined herein) and Software (defined herein), not
           installed by Supplier, four weeks after receipt; and

    1.1.3.2For Product(s) (defined herein) and Software (defined herein),
           installed by Supplier, four weeks after the actual date of the
           completion of Installation Services (defined herein); and

    1.1.3.3For Services (defined herein), four weeks after the actual date of
           completion of the Services.

        If Purchases fail to conform during such time periods described in this
        Clause, the Acceptance Period shall advance until either: a) Purchases
        have successfully met Acceptance, or b) Customer cancels the applicable
        Order(s).

 1.1.4."Agreement" means this written contract between Customer and Supplier
        covering the Purchases together with attached exhibits, any Order(s),
        and amendments to this Agreement issued in accordance with the Clause
        entitled "Amendments".

 1.1.5."Commencement Date" means the date stated in any applicable Order(s) on
        which Services are to begin.

 1.1.6."Consortium" for the purposes of this Agreement means all Customers
        listed under Exhibit A subject to Clause 2.40 entitled 'Several
        Liability' and all actions to be taken by Consortium hereunder shall be
        taken by TeleWest Communications Group Limited ("TeleWest") as
        its representative.

                                       1
<PAGE>
 1.1.7."Customer" means the companies and partnerships listed under Exhibit A.
        Customer reserves the right to add and delete companies and partnerships
        to Exhibit A as Customers, in accordance with the Clause entitled
        "Amendments".

 1.1.8."Deliver" ("Delivery") means Customer's receipt of Purchases at the
        location specified in any applicable Order(s). If Customer specifies the
        common carrier to be used, "Delivery" means receipt of Product(s) and
        Software by the common carrier.

 1.1.9."Delivery Date" means the date stated in any applicable Order(s) by which
        Purchases are required to be Delivered.

 1.1.10."Documentation" means information whether tangible or intangible, such
        as: Specifications, user manuals, test data, flow charts, data file
        listings, loading and unloading procedures, machine configuration
        information, programs, routines, subroutines, or related information
        necessary for the engineering, installation, operation, and maintenance
        of Purchases.

 1.1.11."Engineering Services" means those Services that include analysing,
        planning, designing, pricing, detailing, drafting, creating
        specifications, ordering and otherwise technically describing or
        specifying Product(s) as Ordered.

 1.1.12."Installation Services" means those Services that include constructing,
        erecting, placing, moving, modifying, unpacking, connecting, wiring,
        cabling, inspecting and testing Product(s) and/or Software or performing
        similar work as ordered.

 1.1.13."Order(s)" means a written or electronic offer by a single Customer for
        Purchases which shall be deemed to incorporate all the provisions of
        this Agreement.

 1.1.14."Maintenance Services" means those preventive, remedial and similar
        services performed by Supplier for a specified period of time for a
        specific application.

 1.1.15."Product(s)" means those goods, supplies, materials, articles, items,
        parts, components, assemblies, incidental associated Software and
        incidental related Services described herein.

 1.1.16.    "Purchases" means all Product(s), Software and
        Services described herein.

 1.1.17."Services" means the work to be performed by Supplier under this
        Agreement, including the supplying of any deliverables incidental to the
        Services.

 1.1.18."Shipment Date" means the date stated in any applicable Order(s) by
        which Product(s) and Software are to be shipped.

 1.1.19."Software" means a set of logical instructions and tables of
        information which guide the functioning of a processor, whether or not
        associated with Product(s), for which Supplier has the right to grant
        licenses or sub licenses to Customer. "Software" includes all related
        Documentation.

 1.1.20."Specifications" means criteria, technical or otherwise, in any medium,
        for Purchases, which are referenced in or made part of this Agreement or
        any Order(s) and/or Proposals and documents clearly supporting
        Supplier's proposals such as descriptions, prototypes, models,
        performance requirements, drawings and pictures relating to the
        Purchases.

                                       2
<PAGE>
 1.1.21."Training Services" means those Services that include instructing,
        teaching, qualifying, or certifying Customer's or others' employees or
        providing other related services.


2.   General Terms And Conditions

This Section sets forth the general terms and conditions under which Customer
may procure Purchases through issuance of Order(s).

The terms and conditions of this Section shall control unless modified by
subsequent Clauses of this Agreement or any Order(s).

2.1. Term

This Agreement shall commence on 31 January 1993, and expire on 30 January 1998.
The parties may extend the term or any subsequent term by executing a separate
written agreement of extension prior to the expiration of the term.

2.2. Termination of Agreement for Convenience

 2.2.1  Customer shall, in addition to its rights to cancel this Agreement for
        default, have the right to terminate this Agreement in whole or in part
        for its convenience at any time by giving Supplier at least thirty (30)
        days written notice of termination specifying the extent to which the
        Agreement is terminated and the date upon which such termination becomes
        effective.

 2.2.2  After receiving notice of termination under Clause 2.2.1 and except as
        otherwise directed by Customer, Supplier shall:

   2.2.2.1 Stop work under the Agreement on the date and to
           the extent specified; and

   2.2.2.2 Place no further orders with its suppliers, except as may be
           necessary for completing such portions of the Agreement as have not
           been terminated; and

   2.2.2.3 Terminate all Orders with its suppliers to the extent that they may
           relate to portions of the Agreement terminated; and

   2.2.2.4 Take such action as may be necessary or as Customer may direct to
           protect and preserve Purchases which are in Supplier's possession and
           in which Customer has or may acquire an interest.

 2.2.3  At the time of termination and to the extent of the termination, the
        parties shall be released from any and all obligations under this
        Agreement provided that Supplier shall be paid for Purchases which have
        met Acceptance prior to the date of termination and any costs identified
        pursuant to Clause 2.4.4 less any amounts previously prepaid. If for
        Services, development of Software, or any other portion of Purchases,
        Supplier's fee has been specified on the basis of a definite sum for the
        completion of Services, Software development, or other portion of
        Purchases, the sum payable upon termination shall be based upon the
        percent of Services, Software development, or other portion of
        Purchases, satisfactorily completed to the Specifications. Supplier
        agrees that a termination under this Clause shall not constitute a
        breach of or default under this Agreement by Customer and that the
        payments to Supplier as provided in this Clause shall constitute full
        payment of all claims by Supplier against Customer arising from a
        termination for convenience.


                                       3
<PAGE>
 2.2.4  Except to the extent of expenses incurred pursuant to Clause 2.4.4,
        Customer shall not be liable to Supplier for expenses, damages or losses
        of any kind arising from a termination under this Clause 2.2 including
        incidental and consequential damages, loss, anticipated profit, or
        unabsorbed indirect costs or overheads or any other losses or claims
        whatsoever on account of or arising out of termination for convenience
        except in respect of death or personal injury caused by Customer's
        negligence.

 2.2.5  Except as set forth above, termination shall not affect either
        Customer's or Supplier's pre-termination obligations hereunder and shall
        be without prejudice to enforcement of any undischarged obligations
        existing at the time of termination.

 2.2.6  Termination of the Agreement pursuant to this Clause 2.2 shall not
        affect the Lease Purchase Agreement detailed in Exhibit E, which shall
        survive the expiration, termination or cancellation of this Agreement.

2.3  Cancellation of Agreement for Default

 2.3.1  Should either party at any time (1) become insolvent or unable to pay
        its debts when they are due, make any arrangement or compromise with its
        creditors, have appointed, or be the subject of any notice of the
        intended appointment of a receiver or manager, become the subject of a
        voluntary or compulsory liquidation (other than for the purpose of a
        solvent reconstruction arrangement), be made the subject of any
        administration order or of any proposal under Part I of the Insolvency
        Act 1986 for a composition in satisfaction of its debts, have a petition
        presented for its winding-up or administration, or do or become subject
        to the occurrence of any event analogous to or having the effect of the
        foregoing events, or (2) materially fail or refuse to diligently fulfil
        its obligations hereunder or to perform any other requirement of this
        Agreement and/or any Order(s) and not cure such failure within thirty
        (30) days after written notice thereof from the non-defaulting party,
        the non-defaulting party shall have the right, at its election and
        without prejudice to any other rights or remedies, to cancel this
        Agreement and/or any Order(s), in whole or in part. Such other rights
        and/or remedies shall include the ability to interrupt or suspend
        Delivery.

 2.3.2  If Customer cancels any Order(s) for default under such Order(s) it
        shall retain any Product(s) and/ or Software already received and
        Accepted under such Order(s), provided that Customer shall pay for
        Product(s) and Software retained. Supplier shall refund to Customer
        amounts previously paid for returned Product(s) and/or Software which
        have not been Accepted under such Order and shall bear all expenses for
        their removal and return.

 2.3.3  Subject to the provisions of Clause 2.4.1 if Customer cancels this
        Agreement and/or any Order(s) under Clause 2.3.1 it may recover from
        Supplier all reasonable loss, damage, and expense incurred by Customer
        as a direct result of Supplier's default, or deduct the amount thereof
        from any monies due or to become due to Supplier. Supplier shall be
        obligated for the payment of any deficiency that may remain after such
        deduction.

 2.3.4  If Supplier cancels this Agreement and/or any Order(s) under Clause
        2.3.1 it may recover from Customer reasonable loss, damage, expenses
        incurred by Supplier as a direct result of Customer's default. Customer
        shall not be liable for incidental, consequential or indirect damages,
        including but not limited to lost profits.


                                       4
<PAGE>
2.4. Order(s) Acceptance, Modification and Termination

 2.4.1  Written acceptance or performance, in whole or in part, shall constitute
        Supplier's acceptance of the Order(s). Acceptance of the Order(s) binds
        the parties to honour all dates, amounts and other requirements of the
        Order(s). Supplier agrees to accept all Orders which comply with the
        terms and conditions of this Agreement. Supplier shall have no
        obligation to accept an Order that contains a delivery interval shorter
        than that specified by Supplier as its standard delivery intervals as
        defined herein.

 2.4.2  If Supplier is unable to accept the Order(s) as received, Supplier shall
        provide Customer with a notice of non-acceptance within fifteen (15)
        days of receipt of the Order(s). The notice shall state the
        modifications necessary to make it acceptable. The proposed
        modifications shall not be binding on either party until accepted by
        Customer in writing.

 2.4.3  Customer may modify or terminate Order(s), in whole or in part, at any
        time prior to Supplier's acceptance, or Customer's acceptance of a
        modified order, with no liability.

 2.4.4  Customer may at any time subsequent to Supplier's acceptance, terminate
        Order(s) in whole or in part, for its convenience, upon giving written
        notice specifying the effective date. Upon receipt of said notice,
        Supplier shall as it relates to such termination:

   2.4.4.1 Immediately cease performance of such Order(s);

     2.4.4.1.1 Place no further Order specific subcontracts;

     2.4.4.1.2 Identify all Products and Software assigned to the Order which is
             not usable by Supplier's other customers within one hundred twenty
             (120) days;

     2.4.4.1.3 Review Order specific subcontractor claims with Customer prior
             to settlement of such claims; and

     2.4.4.1.4 If requested by Customer complete performance of the work not
             terminated at the prices and fees as specified in the Order .

   2.4.4.2 Within sixty (60) days after said notice, or such other period
           approved by Customer, Supplier shall submit a written proposal to
           Customer for settlement. The proposal shall identify or explain:

     2.4.4.2.1 Prices and fees for Services performed by Supplier prior to
             the effective date of termination;

     2.4.4.2.2 Products and Software identified pursuant to Clause 2.4.4.1.2,
             its condition and Supplier's prices and fees for such Products and
             Software; and

     2.4.4.2.3 Subcontracts settled by Supplier in conjunction with Clause
             2.4.4.1.3 as they relate to the termination and applicable
             termination charges.

   2.4.4.3 The proposal shall include reasonable back-up documentation to
           support each proposal item and shall be consistent with Supplier's
           prices and fees associated with such terminated Order.

   2.4.4.4 Supplier shall be entitled to prices and fees specified in Clause
           2.4.4.2.1 and 2.4.4.2.2 in relation to the terminated work as set
           forth in the applicable Order.


                                       5
<PAGE>
   2.4.4.5 The amount shall be further reduced by any amounts for Product
           referred to in Clause 2.4.4.1.2 and which is either returned to stock
           or sold for scrap.

2.5. Order(s)

 2.5.1  All Order(s) shall be in writing and signed by Customer

 2.5.2  When provisions of any Order(s) conflict with or supplement this
        Agreement, provisions of the Order(s) which are not pre-printed or
        otherwise in standard form shall take precedence. This Agreement shall
        take precedence over pre-printed provisions of any Order(s).

 2.5.3  Warranties or representations made in writing by Supplier under any
        Order(s) or in contemplation of any Order(s), shall be binding upon
        Supplier, for purposes of those Order(s).

2.6. Reports

 2.6.1  Supplier shall provide Consortium at the end of each calendar quarter
        with an Order(s) and Shipment Report, mailed to the Telecommunications
        Products Contract Manager at TeleWest Communications Group Limited, Unit
        1 Genesis Business Park, Woking, Surrey GU21 5RW, containing the
        following information:

   2.6.1.1 Supplier's name (including Division, if applicable) and address; and

   2.6.1.2 Time period covered; and

   2.6.1.3 A description, by name and part numbers of Product(s) and Software
           shipped, including quantity Ordered, quantity shipped, and the
           ship-to location; and

   2.6.1.4 A description of Services performed; and

   2.6.1.5 The value of each shipment of Product(s) or Software and Services 
           performed; and

   2.6.1.6 The total value (i.e. summary) of Product(s) and Software shipped and
           Services performed during the report period.

2.7  Invoices and Payments

 2.7.1  Subject to Clause 2.8, Supplier shall issue invoices pursuant to this
        Clause 2.7.1:

   2.7.1.1 For Products and Software being installed and Services being
           performed by Supplier, Supplier shall issue an invoice for
           [CONFIDENTIAL PORTION OMITTED] of the price of the Products, Software
           and Services specified under the Order upon Delivery. An invoice for
           the remaining [CONFIDENTIAL PORTION OMITTED] of the price of the
           Products, Software and Services specified under the Order shall be
           issued upon Acceptance. Customer shall pay invoices within the month
           following receipt of such invoices. However, should any
           non-conformances be outstanding and Customer provisionally accepts a
           plan of action for the correction of such non-conformances, then
           Customer shall have the right to withhold an agreed value until all
           such non-conformances have been completed or rectified; or


                                       6
<PAGE>
   2.7.1.2 For Products and/or Software being installed by Customer, correct and
           undisputed invoices for the Products and/or Software shall be paid
           within the month following receipt of both Product and/or Software
           and the invoice; or

   2.7.1.3 For Services, Supplier's correct and undisputed invoice shall be paid
           within the month following both completion of Services and receipt of
           the invoice.

        United Kingdom Value Added Tax (VAT) is to be stated separately. Each
        invoice shall specify whether it is partial or final. No term or
        condition of any invoice shall be binding upon Customer.

 2.7.2  Customer is not required to pay invoiced amounts in dispute until such
        dispute is resolved. Once the dispute is resolved the invoice shall be
        paid within the month following such resolution.

 2.7.3  Unless otherwise agreed, credits owed to Customer may be applied against
        amounts owed to Supplier, or at Customer's request will be paid within
        the month following such request.

 2.7.4  Payment whether by finance of otherwise shall not be considered
        Acceptance of non conforming Purchases.

 2.7.5  Except as provided under Clause 2.3.1, Supplier shall provide
        Product(s), Software and Services without interruption in the event of
        disputes concerning payment or other provisions of this Agreement.

2.8  Financing

Supplier agrees to provide financing to those Customers listed in Exhibit E,
Appendix 1, together with the amounts of their individual facilities for up to
[CONFIDENTIAL PORTION OMITTED] in aggregate Purchases under this Agreement
pursuant to Lease Purchase Agreements substantially in the form of Exhibit E,
Appendix 2 in the case of all Customers under common control with TeleWest;
substantially in the form of Exhibit E, Appendix 3 in the case of Birmingham
Cable Limited and Cable London plc; and substantially in the form of Exhibit E,
Appendix 4 in the case of Windsor Television Limited, which shall be entered
into by Supplier and each Customer that elects to finance any Purchases prior to
such Customer placing its initial Order hereunder. In the event that a Customer
elects to finance Purchases in accordance with such Lease Purchase Agreement,
Supplier shall issue invoices for such Purchases in accordance with Clause 2.7,
except that such invoices shall be for the full amount due, and such invoices
shall be deemed to be paid upon inclusion of the amounts covered thereby in an
Equipment Schedule under a Lease Purchase Agreement. The financing of Purchases
pursuant to a Lease Purchase Agreement shall be without prejudice to the rights
of Customer under this Agreement with respect to such Purchases, including
without limitation Customer's right not to accept non-conforming Purchases.

2.9  Price Protection

 2.9.1  Unless otherwise agreed, for Orders issued within a period of two (2)
        years after the effective date of the term under Clause 2.1 of this
        Agreement, the prices, rates, charges or fees for Purchases shall be
        Supplier's published prices, rates, charges or fees in effect on the
        effective date of this Agreement, less discounts set forth in the
        Exhibits to this Agreement, subject to the Shipment Date or the
        Commencement Date being not more than the Supplier's standard delivery
        interval for such Purchases.


                                       7
<PAGE>
 2.9.2  Thereafter, Supplier shall notify Consortium in writing at least ninety
        (90) days in advance of the effective date of any increase. Such
        increase requests must be accompanied by full explanation and backup
        documents in a form acceptable to Consortium. Increases shall not occur
        more frequently than once every twelve (12) months and not increase by
        more than the following formula:

                              P2 = P1[1 + [M2 - M1 / M1]]

   LEGEND:

   P2    = Maximum allowable price increase.

   P1    = Base prices for the first price change shall be those negotiated in
           the Agreement. After the first price increase the resultant price
           will be the base price.

   M1    = The Index for Telegraph and Telephone Equipment and Apparatus,
           Table 18.3, SIC 34 "Electrical and Electronic Engineering" (1980
           Division Class or Group), reported by the Central Statistical Office
           of the United Kingdom for the average of the twelve months (January -
           December) comprising the base year.

   M2    = The Index for Telegraph and Telephone equipment and Apparatus, SIC
           34 "Electrical and Electronic Engineering" (1980 Division Class or
           Group), reported by the Central Statistical Office of the United
           Kingdom for the average of the twelve months (January-December)
           comprising the year of adjustment.

        Averages for the calculation will start the first year of the Agreement
        and annually thereafter. Price increases, if any, will be applied
        beginning 31 January of the year following the calculation.

 2.9.3  If Supplier's published prices, rates, charges or fees on the Shipment
        Date of Product(s), and/or Software and/or the Commencement Date for
        Services are less than any prices, rates, charges or fees set forth in
        the Order(s) or elsewhere, Customer shall have the benefit of the lesser
        prices, rates, charges or fees. Supplier shall notify Customer in
        writing of the effective date of any increase.

2.10 Taxes

Value added tax and all other taxes designed, designated, levied or based on the
prices, rates, charges or fees or on this Agreement or the Purchases provided
hereunder shall be added to the invoice and paid by Customer. Import duties and
similar costs are the responsibility of the Supplier and are included in the
prices stated under this Agreement.

2.11 Records

Supplier shall maintain complete and accurate records of all amounts invoiced to
and payments made by Customer hereunder in accordance with recognised accounting
practices for a period of four (4) years from the date of final payment for
Purchases. Upon request, Customer and its authorised agents and representatives
shall have access to such records for purposes of audit .

2.12.     Acceptance

Customer may perform tests during the Acceptance Period to assure that Purchases
or any part thereof conform to Specifications and the requirements of the
Order(s). Should Purchases or any part thereof fail to conform, Customer may
reject the applicable Purchases.

                                       8
<PAGE>
2.12.1 If the non-conforming Purchases were not installed by Supplier, Supplier
        shall at no cost to Customer: (1) correct any non conformance; or (2)
        supply replacements for the applicable Purchases.

2.12.2 If, within a reasonable time such correction or replacement fails to make
        Purchases conforming, Customer may cancel the applicable Order(s) and
        Supplier shall refund to Customer amounts paid for returned Purchases
        and reimburse Customer for any costs incurred in returning Purchases to
        Supplier.

2.12.3 If non-conforming Purchases were installed by Supplier, Supplier shall at
        no cost to Customer: (1) correct any non conformance; or (2) replace the
        applicable Purchases with equivalent Purchases that meet Specifications
        and the requirements of the Order(s).

2.12.4 If, within a reasonable time such correction or replacement fails to make
        Purchases conforming, Customer may cancel the applicable Order(s) and
        Supplier shall refund to Customer amounts paid for such Purchases.
        Supplier shall remove the non conforming Purchases or reimburse Customer
        for all costs of removing and returning such Purchases to Supplier.

The selection of any of these options shall be at the sole discretion of
Customer and shall be accomplished in a time frame suitable to Customer. The
repaired or replaced Purchases shall be subject to this Clause. Supplier shall
have no obligation to repair or replace Product(s), Software and/or Services
which have been abused, improperly used, improperly stored, improperly installed
or altered by Customer.

2.13 Warranties:

 2.13.1 Supplier warrants that it has title, free of all liens and encumbrances,
        to all Product(s) that are sold, leased or licensed to Customer. For
        Software, Supplier warrants that it has the right to grant to Customer
        the licenses granted hereunder.

 2.13.2 Supplier's warranty shall be for a period of three (3) years from
        Acceptance Date. Supplier warrants and it is a requirement of any Order,
        that all:

        2.13.2.1 Product(s) and Software shall be free from material defects,
                 shall conform strictly to all Specifications, statements of
                 work, or other requirements in this Agreement and any Order;
                 and

        2.13.2.2 Services shall be executed with reasonable care and skill by
                 properly qualified and experienced personnel, shall be free
                 from defects in performance, shall conform strictly to all
                 Specifications, statements of work or other requirements in
                 this Agreement and the Order; and

       such Products, Software and/or Services shall comply in all respects with
       any statutory rule or regulation which may be in force at the time of
       Delivery.

 2.13.3 If Supplier is not the manufacturer or licensor, Supplier shall obtain
        the same warranty as specified herein from the manufacturer or licensor
        and the complete warranty will pass to Customer. Supplier shall assist
        and cooperate with Customer in making claims under such warranty. If
        Supplier is a distributor of Product(s) and Software, Supplier shall
        process such claims.

 2.13.4 The warranties will not be affected by removal, relocation, or resale of
        Product(s) or the removal and relocation of Software. However, Supplier
        should be advised of such removal, relocation, or resale of Product(s)
        or the removal and relocation of Software and be allowed an adequate
        time to respond with advice on procedures to be followed and any adverse
        consequences of the proposed action.


                                       9
<PAGE>
  2.13.5       The warranty period applicable to any repaired or replaced parts
               shall be six (6) months from the Delivery Date of same to
               Customer or the unexpired balance of the warranty period
               applicable to the repaired or replaced Purchases, whichever is
               the longer.

  2.13.6       Warranties shall survive inspection, Acceptance and payment and
               shall run to Customer, successors in interest and assigns, as
               stated in clause 2.35.

  2.13.7       Supplier shall, at no expense to Customer, promptly correct any
               failure to fulfil the above warranties which may appear at any
               time during the warranty period, provided that Customer notifies
               Supplier of such failure during the warranty period.

                   2.13.7.1      Nonconforming Product(s), Software and Services
                                 shall be either corrected on-site or returned
                                 to Supplier for correction, at Supplier's
                                 expense. Customer agrees to be reasonable in
                                 requiring on-site corrections.

                   2.13.7.2      If the nonconforming Product(s), Software and
                                 Services have not been corrected within:

                         2.13.7.2.1     Twenty four (24) hours of Supplier's
                                        notification of an E1 or E2 failure as
                                        defined in Exhibit B entitled "Fault
                                        Classification" attached hereto and by
                                        this reference incorporated into this
                                        Agreement; or

                         2.13.7.2.2     Seven (7) days of Supplier's
                                        notification of an S1 or S2 failure as
                                        defined in Exhibit B.

                                 Customer may then issue Supplier a written cure
                                 notice, requesting Supplier to provide facts
                                 bearing on its failure to perform and
                                 Supplier's plan to correct such failure to
                                 perform.

                    2.13.7.3     Supplier shall respond to such Customer's 
                                 notification within:

                         2.13.7.3.1     One (1) hour from receipt of such notice
                                        for an E1 or E2 failure; or

                         2.13.7.3.2     Seven (7) days from receipt of such
                                        notice for an S1 or S2 failure.

                                 Supplier's reply shall state the reasons for
                                 the failure, an action plan to complete
                                 performance and a revised schedule.

                    2.13.7.4     If Supplier's reply under Clause 2.12.7.3 is:

                         2.13.7.4.1     Accepted by Customer, Supplier shall
                                        proceed immediately with performance of
                                        the action plan. In the event Supplier
                                        again fails to perform, Customer may
                                        cancel this Agreement or the Order for
                                        default. In the event of such
                                        cancellation, Supplier shall reimburse
                                        Customer amounts previously paid for
                                        returned Product(s) and Software
                                        furnished by Supplier, less Customer's
                                        depreciation, and shall bear all
                                        reasonable expenses for its removal and
                                        return to Supplier; or


                                       10
<PAGE>
                         2.13.7.4.2     Not acceptable to Customer, then
                                        Supplier shall provide a revised plan of
                                        action to Customer within;

                             2.13.7.4.2.1   Twenty  four (24) hours of  
                                            Customer's notification for E1 or E2
                                            failures; or

                             2.13.7.4.2.2   Three (3) days of Customer's 
                                            notification for S1 or S2 failures.

                                        In the event Supplier's revised plan of
                                        action is rejected by Customer, then
                                        Customer may cancel this Agreement or
                                        the Order for default. In the event of
                                        such cancellation, Supplier shall
                                        reimburse Customer amounts previously
                                        paid for returned Product(s) and
                                        Software furnished by Supplier, less
                                        Customer's depreciation, and shall bear
                                        all reasonable expenses for its removal
                                        and return to Supplier.

  2.13.8       Supplier shall have no obligation to repair or replace
               Product(s), Software and/or Services which have been abused,
               improperly used, improperly stored, improperly installed or
               altered by Customer.

  2.13.9       The warranties and remedies set forth above constitute the only
               warranties of Supplier with respect to Purchases and the only
               remedies of Customer in the event such warranties are breached.
               They are in lieu of all other oral, statutory, express or implied
               warranties.

2.14     HAZARDOUS MATERIALS AND SUBSTANCES

  2.14.1       Hazardous materials and substances provided by Supplier hereunder
               shall be shipped and packaged in accordance with the laws of
               England.

  2.14.2       Supplier shall indemnify and hold Customer harmless in accordance
               with the Clause entitled "Indemnity" for any liability or claim
               that may be sustained by reason of Supplier's failure to comply
               with any rules, regulations, or laws governing hazardous
               materials and/or substances.

2.15     CONFIDENTIAL INFORMATION

  2.15.1       As used herein, "Confidential Information" shall mean any
               technical or business information furnished, in whatever form or
               medium, or disclosed by one party to the other (including, but
               not limited to, Product(s)/Services Specifications, prototypes,
               computer programs, models, drawings, marketing plans, financial
               data and personnel statistics), which is marked as confidential
               or proprietary; or for information which is orally disclosed, the
               disclosing party clearly indicates to the receiving party at the
               time of disclosure the confidential or proprietary nature of the
               information and confirms the confidential or proprietary nature
               in writing within thirty (30) days after the disclosure. Any
               third party information furnished or disclosed and marked as or
               stated to be confidential or proprietary shall be deemed
               Confidential Information and shall be subject to the terms and
               conditions herein.

  2.15.2       Customer does not wish to receive the Confidential Information of
               Supplier, and Supplier agrees that it will first provide or
               disclose information which is not confidential. Only to the
               extent that Customer requests Confidential Information from
               Supplier will Supplier furnish or disclose Confidential
               Information.


                                       11
<PAGE>
  2.15.3       For three (3) years from the disclosure or furnishing of
               Confidential Information, the receiving party agrees to hold such
               Confidential Information in strictest confidence and shall use
               same solely for the purposes of this Agreement unless otherwise
               authorised in writing by the disclosing party. The receiving
               party shall not copy such Confidential Information without
               express written permission. The receiving party shall not
               disclose such Confidential Information to anyone (including
               consultants and subcontractors) except employees of the receiving
               party to whom disclosure is necessary for the purposes set forth
               in this Agreement. The receiving party shall appropriately notify
               each such employee that the disclosure is made in confidence and
               must be kept in confidence in accordance with this Agreement. In
               the event that it is necessary for the purposes of this Agreement
               to disclose Confidential Information to independent contractors
               or other agents, the receiving party may do so after first
               obtaining a written confidentiality agreement containing terms no
               less restrictive than the terms in this Clause. The obligations
               set forth herein shall be satisfied by each party through the
               exercise of the same degree of care used to restrict disclosure
               and use of its own information of like importance.

  2.15.4       All copies of such Confidential Information in written, graphic
               or other tangible form shall be returned to the disclosing party
               upon expiration, termination or cancellation of this Agreement or
               upon the disclosing party's request.

  2.15.5       The obligations imposed in this Clause shall not apply to any
               information that:

       2.15.5.1      Is already in the possession of or is independently 
                     developed by the receiving party, or;

       2.15.5.2      Is or becomes publicly available through no fault of the 
                     receiving party; or

       2.15.5.3      Is obtained by the receiving party from a third person who
                     is under no obligation of confidence to the party whose
                     Confidential Information is disclosed; or

       2.15.5.4      Is disclosed without restriction by the disclosing party.

  2.15.6       The requirements of use and confidentiality set forth herein
               shall survive the expiration, termination or cancellation of this
               Agreement.

2.16     INDEPENDENT CONTRACTOR

Supplier hereby declares and agrees that it is engaged in an independent
business and will perform its obligations under this Agreement as an independent
contractor and not as the agent or employee of Customer; that the persons
performing Services hereunder are not agents or employees of Customer; that
Supplier has and hereby retains the right to exercise full control of and
supervision over the performance of Supplier's obligations hereunder and full
control over the employment, direction, compensation and discharge of all
employees assisting in the performance of such obligations; that Supplier shall
be solely responsible for all matters relating to the payment of such employees
including, without limiting the generality of the foregoing, national insurance
contributions, PAYE and other income tax payments and sick pay; that Supplier
shall comply with all rules and regulations, including those relating to health
and safety, relating to their employment; and that Supplier shall be responsible
for its own acts and those of Supplier's employees, agents and sub-contractors
during the performance of Supplier's obligations under this Agreement.


                                       12
<PAGE>
2.17     INDEMNITY

  2.17.1       The Supplier shall indemnify and hold harmless Customer against
               any liability, loss, claim and/or proceedings whatsoever in
               respect of personal injury to and/or death of any person
               howsoever arising pursuant to this Agreement due to any negligent
               act or omission of the Supplier, its owners, holding company(s),
               associated companies, subsidiaries, agents, successors in
               interest and employees.

  2.17.2       The Customer shall indemnify and hold harmless Supplier against
               any liability, loss, claim and/or proceedings whatsoever in
               respect of personal injury to and/or death of any person
               howsoever arising pursuant to this Agreement due to any negligent
               act or omission of Customer, its owners, holding company(s),
               associated companies, subsidiaries, successors in interest,
               agents and employees.

2.18     PATENT, TRADEMARK, COPYRIGHT OR TRADE SECRET INDEMNIFICATION

  2.18.1       Should Customer be notified by a third party that Supplier's
               Products, Software and/or Services are infringing on a patent,
               trademark, copyright, trade secret, service marks, design rights
               or other proprietary rights relating to Purchases, Customer
               agrees to promptly advise Supplier of such notification. Supplier
               shall indemnify and hold harmless Customer, its owners, holding
               company(s), associated companies, subsidiaries, agents and
               employees from and against all liabilities that may result by
               reason of any infringement or claim of infringement of any
               patent, trademark, copyright, trade secret, service marks, design
               rights or other proprietary rights relating to Purchases.
               Supplier will defend and/or settle at its own expense any action
               brought against Customer to the extent that it is based on a
               claim that Purchases infringe any patent, trademark, copyright,
               trade secret or other proprietary right. Subject to Clause
               2.17.2, Customer agrees that Supplier shall have the sole conduct
               of the defence to any claim or action in respect of an
               infringement of any patent, trademark, copyright, trade secret,
               service marks, design rights or other proprietary rights relating
               to Purchases. Further, Customer agrees that it will:

       2.18.1.1      Not admit liability or otherwise attempt to settle or
                     compromise the said claim or action except upon the express
                     instructions of the Supplier; and

       2.18.1.2      At Supplier's cost and expense act in accordance with the
                     reasonable instructions of Supplier and give to Supplier
                     such assistance as it shall reasonably require in respect
                     of the conduct of the said defence including without
                     prejudice to the generality of the foregoing the filing of
                     all pleadings and other court process and the provision of
                     all relevant documents.

               This indemnity shall not extend to an infringement resulting from
               Customer's alteration or misuse of the Purchases.

  2.18.2       If a preliminary or final judgement shall be obtained against
               Customer's use of any Purchases or any part thereof by reason of
               alleged infringement, or if in Supplier's opinion, such Purchases
               or any part thereof are likely to become subject to a claim for
               infringement, Supplier shall, at its expense and option and
               without any effect or waiver of any right Customer may possess at
               either law or equity, either:

       2.18.2.1      Procure for Customer the right to continue using such 
                     Purchases or any part thereof; or

                                       13
<PAGE>
       2.18.2.2      Replace or modify Purchases or any part thereof so that it
                     becomes non-infringing but only if the modification or
                     replacement does not adversely affect the Customer's rights
                     or ability to use as specified herein.

       If neither of those options is reasonably possible, Supplier shall refund
       to Customer an appropriate pro rata portion of amounts paid pursuant to
       this Agreement and reimburse Customer for reasonable expenses of removal
       and replacement.

2.19     INSURANCE

  2.19.1       Supplier shall at all times during the term of this Agreement, at
               its own cost and expense, carry and maintain:

       2.19.1.1      Employers' Liability insurance with limits of not less than
                     One Hundred Thousand Dollars ($100,000 [US]) for each
                     accident;

       2.19.1.2      Comprehensive general liability insurance with a broad form
                     endorsement which includes, but is not limited to, coverage
                     for products liability, personal injury, broad form
                     property damage, coverage for completed operations, and
                     contractual liability, with respect to the liability
                     assumed by Supplier hereunder. Limits shall be not less
                     than Five Million Dollars ($5,000,000.00 [US]) combined
                     single limit for each occurrence;

       2.19.1.3      Comprehensive automobile liability insurance as required
                     under the Road Traffic Acts covering the use and
                     maintenance of owned, not-owned, hired and rented vehicles
                     with limits of not less than One Million Dollars
                     ($1,000,000.00 [(US]) combined single limit coverage for
                     each occurrence; and

       2.19.1.4      Umbrella liability insurance which includes, but is not
                     limited to, coverage for products liability, personal
                     injury, broad form property damage, coverage for completed
                     operations, and contractual liability, with respect to the
                     liability assumed by Supplier hereunder with limits of at
                     least Five Million Dollars ($5,000,000.00 [US]) for each
                     occurrence.

               Supplier shall keep itself insured against its usual insurable
               liability under this Agreement and any Order and in respect of
               any Purchases and without prejudice to the generality of the
               foregoing against Supplier's liabilities.

  2.19.2       The requirements of this Agreement as to insurance to be
               maintained by Supplier shall not in any manner limit or qualify
               the liabilities and obligations of Supplier or in any way modify
               Supplier's obligations to indemnify the Customer.

  2.19.3       Upon request, Supplier shall forward to Customer certificates of
               such insurance issued by the insuring carrier or carriers. The
               certificate(s) shall provide that (1) Customer (and its
               participating subsidiaries) shall be named as an additional
               insured(s) on all policies (except Employer's Liability), as
               their interest may appear with respect to this Agreement; (2)
               thirty (30) days prior written notice of cancellation of, or
               material change or exclusions in the policy to which
               certificate(s) relate shall be given to Customer; and (3)
               coverage is primary and not in excess of, or contributory with,
               any other valid and collectible insurance purchased or maintained
               by Customer. Supplier shall not commence any work hereunder until
               the obligations of Supplier with respect to insurance have been
               fulfilled. The fulfilment of such obligations, however, shall not
               otherwise relieve Supplier of any liability assumed hereunder or
               in any way modify Supplier's obligations to indemnify Customer.


                                       14
<PAGE>
  2.19.4       Supplier shall require its subcontractors who may enter upon
               Customer's premises to maintain insurance as described above.

2.20     MANUALS AND DOCUMENTATION:

  2.20.1       Upon request, Supplier shall provide at no additional charge to
               Consortium, two (2) complete sets of current manuals and
               Documentation under this Agreement for each Purchase by any
               Customer to:

                  TeleWest Communications Group Ltd.
                  Attn.: Documentation Administrator
                  Materials Management Department
                  Unit 1, Genesis Business Park
                  Woking, Surrey RG12 5RW
                  United Kingdom

  2.20.2       With every site specific Order Supplier shall deliver two (2)
               sets of Order specific manuals and one (1) set of Order specific
               Documentation at no additional charge to Customer.

  2.20.3       Manuals and Documentation will describe in detail the
               engineering, installation, maintenance, repair and operation of
               Product(s), Software and/or products or software resulting from
               Services.

  2.20.4       For all Purchases, Supplier shall, at no additional charge,
               provide all future updates, revisions and corrections of manuals
               and Documentation.

  2.20.5       Customer shall, at no additional charge, have the right to make
               incidental copies of sections of manuals and Documentation for
               the purpose of engineering, installing, maintaining, repairing
               and operating Purchases. All such reproductions shall include the
               copyright or similar proprietary notices. No right is granted to
               Customer to reproduce in bulk entire manuals nor to reproduce
               information designated as confidential without first receiving
               express written permission.

2.21     COMPATIBILITY INFORMATION

  2.21.1       Upon request by Customer during the term of this Agreement or
               within three (3) years following its termination, cancellation or
               expiration, Supplier shall provide Customer with those interface
               specifications that are generally available to Supplier's other
               customers describing the electrical, functional, physical and
               Software interfaces of Purchases. Upon Customer's request,
               Supplier shall provide such data and information to other
               suppliers and Public Telephone Operators (PTO) with whose
               products Customer requires Supplier's Product(s), Software and/or
               Services to interface.

  2.21.2       Compatibility information which is proprietary and confidential
               shall be treated in accordance with the Clause entitled
               "Confidential Information".

2.22     RIGHTS TO INVENTIONS, DISCOVERIES AND OTHER DEVELOPED INFORMATION

In the course of or as a result of providing Product(s), Software and/or
Services under this Agreement or any Order(s), inventions, discoveries or
improvements or proprietary and secret concepts, methods, techniques, processes,
adaptations, ideas, specifications, business and technical information, computer
or other apparatus programs, and other ideas, knowledge or data ("Intellectual
Property") whether written or not, may be originated, discovered or developed by
the parties. Such Intellectual Property originated, discovered or developed by


                                       15
<PAGE>
employees of Supplier shall belong to Supplier, and such Intellectual Property
originated, discovered or developed by employees of Customer shall belong to
Customer. The Intellectual Property originated, discovered or developed jointly
by employees of both parties shall belong jointly to both; provided, however,
that each party shall give the other a royalty free, irrevocable, non-exclusive,
world-wide license to use such Intellectual Property. Each shall sign all papers
and perform all acts which may be necessary, desirable or convenient to the
other at its own expense, to file and prosecute applications for patents on such
Intellectual Property and to maintain patents granted thereon. Each shall
acquire from its employees, consultants, representatives or agents who perform
the work such assignments, rights and covenants to ensure that the other shall
receive the rights provided for in this Clause. Each shall assist the other in
executing any other applicable documents showing ownership.

2.23     PATENT LICENSES

No licenses, express or implied, under any patents, copyrights, service marks,
design rights or trademarks are hereby granted by any party to any other party.

2.24     RIGHT TO INSPECT

Customer may inspect Services performed by Supplier in progress or completed
whether such Services are performed on Customer's premises or elsewhere. The
inspection or failure to inspect shall not be construed by Supplier as
Acceptance, or as a waiver of any Customer rights hereunder.

2.25     RIGHT OF ACCESS

Customer shall permit Supplier access to Customer's and others' facilities in
connection with the performance of Services. Supplier shall assure that only
trustworthy employees are allowed to enter Customer's and others' facilities.
Supplier shall give Customer reasonable advance notice when access to Customer's
or others' facilities is required. At Customer's request, Supplier shall furnish
a personnel sheet containing the employee name, address, telephone number, job
duties, key assignment and any other information Customer deems necessary to
safeguard its property and operations.

2.26     TRANSPORTATION AND SHIPPING

  2.26.1       Unless Supplier's published price includes freight charges,
               Customer shall bear transportation charges which shall be prepaid
               by Supplier. Unless otherwise agreed, transportation charges
               shall be limited to actual common carrier charges which shall be
               stated separately on the invoice for Purchases.

  2.26.2       At Customer's option Customer may specify freight classifications
               for the Purchases in its Order(s).

2.27     DELIVERY

Supplier shall Deliver Purchases in time to meet the Delivery Date.

2.28     DAMAGE TO PROPERTY

Supplier shall immediately notify Customer and third party owners of real or
tangible personal property of any loss of or damage to such property caused by
Supplier. Supplier shall take precautions and necessary measures to prevent
further damage, and at Customer's option and direction, Supplier shall replace
or temporarily repair such property. Subject to Clause 2.42, at Customer's or
third party owner's option and direction, Supplier shall restore or replace
Customer's or others' property to its original condition, place such property in
operational condition, or bear the cost of such restoration or replacement.


                                       16
<PAGE>
2.29     SUBCONTRACTORS

Supplier shall obtain Customer's written consent prior to subcontracting any
Services hereunder. Such consent shall not unreasonably be withheld or delayed.
Such requirement shall not apply to purchases of standard commercial supplies or
raw materials incidental to the Services.

2.30     ADVERTISING

No identification of Customer or Consortium, references to Customer or third
parties or references to Customer's or Consortium's names, marks, codes,
drawings or Specifications will be used in any of Supplier's advertising or
promotional efforts in reference to providing Product(s), Software and/or
Services hereunder without Customer's or Consortium's, as applicable, prior
written permission.

2.31     PLANT AND WORK RULES

Supplier and Customer, while on the premises of the other, shall comply with all
plant rules and regulations including, where required by governmental
regulation, submission of satisfactory clearance from the appropriate
governmental authorities. Supplier shall become familiar with Customer's or
others' procedures for Delivery, receipt and storage of Purchases.

2.32     FORCE MAJEURE

Neither party shall be liable for any failure or delay in performing its
obligations hereunder to the extent that such failure or delay was caused by an
event beyond the reasonable control of that party. Such events will include but
not be limited to, fire, accidents, war, riots, strikes, lockouts, labour
difficulties, Acts of God, or acts of civil or military authority. In the event
that either party shall be prevented from material performance of its
obligations hereunder for a period of more than sixty (60) days the other party
shall have the right to terminate the Order.

2.33     SETOFF

All claims for money due or to become due from Customer under this Agreement
shall be subject to deduction or setoff by Customer by reason of any
counterclaim arising out of this or any other transaction with Supplier.

2.34     TIME IS OF ESSENCE

  2.34.1       Time of Acceptance of the Products, Software and Services is of
               the essence. Failure of the Supplier to achieve Acceptance by the
               date specified in the Order shall cause the commencement of the
               liquidated damages specified in Clause 2.34.2.

  2.34.2       When Supplier is furnishing Products, Software and/or providing
               Services hereunder, Supplier's Product, Software and/or Services
               shall meet Acceptance by the Acceptance Date agreed between the
               parties under the Order. In the event Supplier's Products,
               Software and Services fail to meet Acceptance by the Acceptance
               Date agreed between the parties under the Order, for causes or
               events other than those described in Clause 2.32 of the Agreement
               entitled "Force Majeure" and/or delays attributable to Customer,
               then Customer's remedy will be:

       2.34.2.1      [CONFIDENTIAL PORTION OMITTED] of the net value of the
                     Order for [CONFIDENTIAL PORTION OMITTED] Supplier's
                     Products, Software and Services fail to meet Acceptance
                     beyond the Acceptance Date agreed between the parties under
                     the Order; and

                                       17
<PAGE>
       2.34.2.2      [CONFIDENTIAL PORTION OMITTED] of the net value of the
                     Order for [CONFIDENTIAL PORTION OMITTED] and beyond that
                     Supplier's Products, Software and Services fail to meet
                     Acceptance beyond the Acceptance Date agreed between the
                     parties under the Order.

               The Supplier's maximum liability for liquidated damages under
               this Clause 2.34 shall not exceed [CONFIDENTIAL PORTION OMITTED]
               of the net value of the Order. Such sum shall be in full and
               final satisfaction of the Supplier's liability for delay under
               such Order.

2.35     ASSIGNMENT

Any assignment or delegation of the rights or obligations hereunder, in whole or
in part, or any other interest hereunder, without Customer's written consent,
shall be void; except that an assignment confined solely to monies due or to
become due shall be void only to the extent that it attempts to impose upon
Customer obligations to the assignee additional to the payment of such monies,
or to preclude Customer from dealing solely and directly with Supplier in all
matters pertaining hereto, including the negotiation of amendments or
settlements of amounts due. Customer reserves the right to assign this Agreement
to any holding company(s), subsidiary of holding company(s), subsidiary,
associated company, or successor in interest of Customer or any person(s)
controlling or controlled by any of the foregoing or to any person(s) directly
or indirectly under common control with Customer, providing same is capable of
discharging the financial obligations of Customer expressed herein.

2.36     USE NOT ACCEPTANCE

Unless used for profit and/or revenue purposes, Customer's use of Products,
Software and Services shall not constitute Acceptance.

2.37     WAIVER

Either party's failure to insist on performance of any of the terms or
conditions herein or to exercise any right or privilege, or either party's
waiver of any breach hereunder shall not be construed to be a waiver, or waive
any other terms, conditions, or privileges, whether of the same or similar type.

2.38     COMPLIANCE WITH LAWS

Supplier shall obtain and maintain at its own expense all permits and licenses
required by law with respect to any Purchases, and shall give all notices, pay
all fees and comply with all laws, ordinances, rules and regulations relating to
its performance obligations specified herein.

2.39     GOVERNING LAW

This Agreement shall be governed by and construed in all respects in accordance
with the laws of England and the parties hereby submit to the non-exclusive
jurisdiction of the English courts.

2.40     SEVERAL LIABILITY

The term Customer as used herein may be applicable to one or more parties and
their rights, obligations and liabilities shall be several, not joint. Each
individual Customer under Exhibit A shall be entitled, by written notice to
Supplier, to designate TeleWest as procurement agent and administrator on its
behalf under this Agreement, which designation shall authorise TeleWest to place
Orders, deliver acknowledgements of Acceptance, give notices and take any or all
other actions hereunder on Customer's behalf; provided, however, that no such
actions shall subject TeleWest to any liability to Supplier, whether for
Customer's obligations hereunder or otherwise, except where TeleWest is the
Customer. With respect to the Supplier's obligations when the term Consortium is
used herein, such obligation shall be construed as a singular obligation to all
Customers as opposed to several obligations to each Customer.

                                       18
<PAGE>
2.41     NON-EXCLUSIVE AGREEMENT

It is expressly understood and agreed that this Agreement does not grant to
Supplier any exclusive privileges or rights and Customer may contract with other
suppliers for the procurement of comparable products and/or software and/or
services. Customer makes no guarantee or commitment for any minimum or maximum
amount of Purchases to be purchased hereunder.

2.42     LIMITATION OF LIABILITY

Notwithstanding any other provision of this Agreement the liability of the
parties shall be limited as set out below.

  2.42.1       In respect of death and personal injury caused by its negligence
               or that of its employees or agents, each party shall be liable to
               the other and indemnify it as set out in Clause 2.17

  2.42.2       In respect of Patent, Trademark, Copyright or Trade Secret
               Indemnification, each party shall be liable to the other and
               indemnify it as set out in Clause 2.18.

  2.42.3       In respect of Confidential Information each party shall be liable
               to the other and indemnify it as set out in Clause 2.15.

  2.42.4       In respect of breach of the Supplier's Software licence as set
               out in Clause 3.12 the Customer's liability shall be unlimited.

  2.42.5       In respect of failure of Supplier to achieve Acceptance by the
               Acceptance date then Supplier will be liable as set out in Clause
               2.34

  2.42.6       In respect of failure of Switch Purchases to operate in
               accordance with the Specification the Supplier will be liable as
               set out in Clauses 2.13 [CONFIDENTIAL PORTION OMITTED]

  2.42.7       In respect of damage to tangible property and its contents caused
               by Supplier's negligence, Supplier will be liable for direct and
               consequential loss to the insured limits detailed in Clauses
               2.19.1.2 and 2.19.1.4.

  2.42.8       Other than as set out above, the Supplier hereby limits its
               liability to the Customer for tortious acts or omissions
               (including negligence) or breach of this agreement to
               [CONFIDENTIAL PORTION OMITTED] per incident or occurrence and to
               an annual aggregate for all such incidents or occurrences of
               [CONFIDENTIAL PORTION OMITTED]

  2.42.9       Except to the extent set forth under Clauses 2.42.6 and 2.42.7
               Supplier hereby excludes [CONFIDENTIAL PORTION OMITTED]

2.43     RE-EXPORT

Regardless of any disclosure made by Customer to the Supplier of the ultimate
destination of the Purchases or any part thereof, Customer undertakes not to
export, either directly or indirectly, the Purchases in whole or in part, nor
any system incorporating the Purchases in whole or in part without having first
obtained clearance or a licence to re-export from the USA and/or Canadian
Governments as required under their respective re-export regulations.


                                       19
<PAGE>
2.44     REMEDIES CUMULATIVE

Any rights of cancellation or termination, or other remedies prescribed in this
Agreement are cumulative and are not intended to be exclusive of any other
remedies to which the injured party may be entitled herein or at law or in
equity, including, but not limited to the remedies of specific performance and
cover, unless such other remedies are specifically limited or excluded by this
Agreement. The use of one or more available remedies shall not bar the use of
any other available remedy for the purpose of enforcing the provisions of this
Agreement; provided, however, that either party shall not be entitled to the
benefit of inconsistent remedies.

2.45     AMENDMENTS

No change or modifications of any terms or conditions of this Agreement shall be
valid or binding on the parties unless made in writing and signed by an
authorised representative of all of the parties listed as Customer under Exhibit
A and an authorised representative of Supplier.

2.46     SURVIVAL

The provisions of this Agreement that, by their sense and context, are intended
to survive performance by either or both parties shall also survive the
completion, expiration, termination or cancellation of this Agreement or any
Order(s).

2.47     BUSINESS CONDUCT

Customer has adopted and follows a Code of Business Ethics and Conduct which
imposes on itself and its employees an obligation to deal with all suppliers and
contractors in a fair and open manner in accordance with the highest standards
of integrity. Supplier represents and warrants that it shall perform to the
highest level of business and professional ethics, and that it has not made or
received and shall not make or receive any payments, gifts, favours,
entertainment, secret commissions or hidden gratuities for the purpose of
securing preferential treatment or action from or to any party in connection
with this Agreement or the Purchases. Any breach or failure with respect to this
representation and warranty shall constitute a material breach of this
Agreement.

2.48     NOTICES

Where written notices, demands, or other communications are required under this
Agreement to be made in writing, they shall be deemed duly given when made in
writing and delivered in hand, or upon receipt when properly addressed by
Recorded or Registered Post or other delivery service to the following
addresses:

                  Consortium: TeleWest Communications Group Ltd.
                  Attn.: Contract Manager
                  Materials Management Department
                  Unit 1, Genesis Business Park
                  Woking, Surrey RG12 5RW
                  United Kingdom

CUSTOMER: Supplier shall provide notices to each of the companies listed as
Customer at the respective address for each under Exhibit A.


                                       20
<PAGE>
                  Supplier: Commercial Manager Cable Telephony
                  Northern Telecom Europe Limited
                  Public Switching Division
                  Northern Telecom House
                  St. Cloud Way
                  Maidenhead, Berks SL6 8XB

Addresses may be changed by written notices to the parties.




                                       21
<PAGE>
3        ACQUISITION OF PRODUCT(S)

This Section sets forth the terms and conditions under which Customer may
procure Product(s) through issuance of any Order(s) and takes precedence over,
supplements and modifies those terms and conditions set forth in Section 2, to
the extent inconsistent therewith.

3.1      DETAILED ORDER(S) ACKNOWLEDGEMENT

Within thirty (30) days following acceptance of the Order(s) or as agreed,
Supplier shall provide detailed Order(s) Acknowledgement. The detailed Order(s)
Acknowledgement shall be delivered to the site specified by Customer.

3.2      QUALITY ASSURANCE AND INSPECTION

  3.2.1        If Supplier is the manufacturer, Supplier shall test and inspect
               ordered Product(s) prior to shipment to Customer in accordance
               with quality control procedures furnished by Supplier and
               reviewed and accepted by Customer.

  3.2.2        Supplier agrees to inform Customer in advance in writing of any
               scheduled change(s) in Supplier's manufacturing processes or
               quality control procedures or practices when such change(s) may
               affect form, fit, function, quality or reliability of Product(s).

  3.2.3        Customer reserves the right to inspect manufacturing facilities,
               processes and finished goods prior to the Shipment Date to verify
               compliance with the Order(s) and adherence by Supplier to its own
               quality assurance policies and procedures. Such inspection shall
               not relieve Supplier of any obligations under this Agreement or
               any Order(s) nor shall such inspection be deemed Acceptance.

  3.2.4        Customer reserves the right to stop shipment of ordered
               Product(s) if it fails the inspection referred to in the
               immediately preceding paragraph.

3.3      SPECIFICATIONS

  3.3.1        Supplier's Specifications, including drawings, relating to
               Product(s) ordered are hereby made a part of this Agreement for
               the purposes of that (those) Order(s) except to the extent that
               any Order specifically provides for a variation from such
               Specifications..

  3.3.2        Supplier shall promptly furnish for Order(s) of Product(s),
               standard site preparation Specifications, if applicable, in such
               detail to ensure that Product(s) can be properly installed. If
               any alterations or modifications required in site preparation or
               manufacture are attributable to either party's incomplete or
               erroneous Specifications, such alterations and/or modifications
               shall be made at the erring parties expense.

  3.3.3        Upon request, Supplier shall provide with each Order of
               Product(s), current applicable drawings in the type of media as
               specified by Customer. Such drawings shall be delivered to the
               Product(s) Delivery location and to the engineering location
               specified in the Order(s).

  3.3.4        Customer shall have the right to reproduce Specifications,
               including drawings and updates thereof for the purposes of
               engineering, maintaining, repairing and operating Product(s).


                                       22
<PAGE>
3.4      TITLE

  3.4.1        Title to Product(s) not installed by Supplier shall vest in
               Customer when Product(s) has (have) been Accepted, except as
               otherwise provided in the Lease Purchase Agreement documented in
               Exhibit E.

  3.4.2        Title to any Product(s) installed by Supplier shall vest in
               Customer upon Acceptance, except as otherwise provided in the
               Lease Purchase Agreement documented in Exhibit E.

  3.4.3        Results of site specific Engineering Services including, but not
               limited to, equipment specifications, office records, drawings
               and summaries of Product(s) shall become the exclusive property
               of Customer upon Acceptance, and shall not be used by Supplier
               for any other purposes.

3.5      RISK OF LOSS

  3.5.1        Supplier shall bear risk of loss for Products(s) until
               Acceptance.

  3.5.2        Supplier shall bear the risk of loss of or damage to Software
               during shipment to Customer and Customer shall bear the risk of
               loss of or damage to Software medium in its possession except to
               the extent such loss or damage is attributable to Supplier.

3.6      FUTURE AVAILABILITY OF REPAIRS, REPLACEMENT PARTS, AND MAINTENANCE NOT
         COVERED UNDER WARRANTY

  3.6.1        "Repair Services" means inspecting for damages, repairing,
               cleaning, lubricating, adjusting, calibrating, restoring or
               rebuilding, refurbishing, testing and retrofitting engineering
               changes and updates, and performing similar Services on
               Product(s) not covered under Maintenance Services or Warranty.

  3.6.2        Supplier shall maintain the capability to perform Repair Services
               or replace Product(s) for fifteen (15) years after the last
               purchase of such. Replacement Product(s) shall conform to the
               original Product(s) in form, fit and function. Repair or
               replacement shall be accomplished within Supplier's published
               repair intervals or as agreed.

  3.6.3        Supplier shall perform Repair Services such that the Product(s),
               Software and Services are in accordance with Specifications
               applicable thereto.

  3.6.4        If an emergency or out-of-service condition exists, Supplier
               shall perform Repair Services or replace the Product within
               twenty-four (24) hours of Supplier's receipt of notice of such
               condition.

  3.6.5        Replacement Product(s) shall be warranted as outlined in the
               Clause entitled "Warranties". Repaired Product(s) shall be
               warranted for a period of six months from completion of repairs
               or the original warranty period, whichever is longer.

  3.6.6        Repaired Product(s) shall have the warranty expiration date
               identified in a permanent manner. Repaired Product(s) shall be
               returned with a tag or other papers describing the Repair
               Services and any other modifications and improvements which have
               been made.

  3.6.7        Supplier shall be strictly liable for loss of or damage to
               Product(s) in its care, custody or control except where such loss
               or damage is caused in whole or in part by any act or omission of
               Customer or any party under the direction or control of Customer.


                                       23
<PAGE>
  3.6.8        If Supplier is unable to maintain the capability to repair or
               replace Product(s), Supplier shall provide Specifications to
               enable other Customer contractors to manufacture or Customer to
               obtain parts from third parties.

  3.6.9        Supplier shall provide written notification two years prior to
               discontinuing the manufacture of items of Product(s).

3.7      TECHNICAL SUPPORT

  3.7.1        Supplier shall provide for a period of fifteen (15) years after
               the last purchase of Product(s), technical support to assist
               Customer in the engineering, installation, operation and
               maintenance of Product(s).

  3.7.2        Supplier shall make such technical support available at no charge
               during the warranty period.

  3.7.3        After expiration of the warranty period such technical support
               shall be available at Supplier's then current rates plus
               reimbursable expenses as pre-authorised by Customer.
               Off-site advisory information shall be at no charge.

3.8      MARKING

Product(s) shall be marked by Supplier, at no additional charge, with Supplier's
model and serial numbers, if applicable; and Date of shipment or manufacture.

3.9      ENGINEERING SERVICES

  3.9.1        Supplier shall perform Engineering Services in accordance with
               Specifications and the requirements of the Order(s).

3.10     INSTALLATIONS SERVICES

  3.10.1       Supplier shall provide all labour, tools, test sets, portable
               buildings, trailers, storage facilities, vehicles, equipment and
               other materials required.

  3.10.2       Supplier shall receive, uncrate, unpack and inspect for damage
               all Product(s) and/or Software to be installed and shall promptly
               notify Customer of any shortage or damage. If Supplier fails to
               make such notations, Supplier shall be solely responsible for all
               loss of or damage, claims, reordering and replacement of affected
               Product(s) and/or Software.

  3.10.3       When necessary, Supplier shall arrange for warehousing, hauling,
               and hoisting, or other services at costs to be agreed in advance
               by Customer..

  3.10.4       Upon request, Supplier shall provide its current installation
               quality standards, including workmanship standards, test and
               inspection methods, sampling plans, test equipment calibration
               methods and requirements, methods for determining acceptance
               quality levels and similar criteria for administering Supplier's
               quality assurance program.

  3.10.5       Supplier shall conduct tests and analysis of installed Product(s)
               in accordance with Specifications and the Order(s), prior to the
               date stated in the Order(s) for completion of Services.


                                       24
<PAGE>
3.11     TRAINING

  3.11.1       Supplier shall provide, as required by any Order(s), personnel to
               conduct training and instructional aids appropriate for each
               course, including books, pamphlets and diagrams.

  3.11.2       Subject to the terms and conditions of a separate agreement,
               Customer may acquire the right to reproduce training material for
               the purpose of training Customer personnel. Such rights shall
               include photographic, video and audio recordings of any training
               or training material.

3.12     SOFTWARE

   3.12.1     SOFTWARE LICENSE:

       3.12.1.1      By acceptance of the Order(s), Supplier grants to Customer
                     a license to use the Software ordered, including patches,
                     fixes and corrections, relating to such Software. Software
                     Licenses shall be non-exclusive and shall grant to Customer
                     the right to use Software on the Product type for which it
                     was intended. Except as specified under Clause 3.12.1.4
                     such Software Licenses shall be non-transferable. Unless
                     otherwise agreed, Customer shall not duplicate, nor modify,
                     nor disassemble nor decompile the Software. The conditions
                     of this Clause shall survive the expiry of the Agreement.

       3.12.1.2      Supplier shall provide Documentation pertaining to Software
                     three weeks prior to the Delivery Date at no additional
                     charge. Documentation shall comply with Customer's
                     Specifications and the highest standards of the industry
                     with respect to content, size, legibility and
                     reproducibility.

       3.12.1.3      Software provided by Supplier for use with Product(s)
                     acquired under this Agreement may be sublicensed to any
                     subsequent third party purchaser of such Product(s),
                     provided such third party purchaser agrees to assume the
                     applicable obligations contained herein.

       3.12.1.4      Customer may transfer, assign or sublicense any license
                     granted by Supplier hereunder, to any holding company(s),
                     subsidiary of holding company(s), subsidiary, associated
                     company, or successor in interest of Customer or any
                     person(s) controlling or controlled by any of the foregoing
                     or to any person(s) directly or indirectly under common
                     control with Customer, upon prior written notice.

       3.12.1.5      Notwithstanding anything to the contrary elsewhere in this
                     Agreement, Supplier and/or Supplier's suppliers shall
                     retain all rights and title in the Software and Customer
                     shall treat the Software as a trade secret and as property
                     of Supplier and/or Supplier's supplier, as appropriate.

   3.12.2     SOFTWARE LICENSE TERM:

   The license for Software shall be effective on the Acceptance Date and shall
   continue for the term specified in the Order(s) or if no term is specified,
   then it shall continue for the useful life as determined by the Customer.
   Notwithstanding the above, Customer may, at any time, terminate the license
   upon thirty (30) days prior written notice and upon termination shall return
   to Supplier or destroy all copies of the Software.


                                       25
<PAGE>
   3.12.3     SOFTWARE SPECIFICATIONS

   Supplier's Specifications relating to Software licensed under any Order(s)
   are hereby made part of this Agreement for the purposes of that (those)
   Order's. except to the extent that any Order specifically provides for a
   variation from such Specifications.

   3.12.4     SOFTWARE TRAPS

   If Supplier knowingly installs in its Software any software instructions
   designed to terminate or disrupt the operation of the Software for any
   purpose ("traps"), Supplier shall give Customer notification of such devices
   in its acceptance of the Order(s).

   IF SUPPLIER FAILS TO NOTIFY CUSTOMER OF SUCH TRAPS, SUPPLIER SHALL BE LIABLE
   FOR ALL DAMAGES, WHETHER CONSEQUENTIAL, INCIDENTAL OR SPECIAL DAMAGES,
   INCLUDING BUT NOT LIMITED TO LOST INCOME OR LOST REVENUE, RESULTING FROM ANY
   FAILURE OF OPERATION CAUSED BY SUCH "TRAPS".

   3.12.5     SOFTWARE DELIVERY AND INSTALLATION

       3.12.5.1      If Software is installed by Customer, Supplier shall
                     provide at no additional charge technical support and
                     Specifications including installation instructions and
                     acceptance test procedures, to allow Customer to properly
                     install, test and accept Software.

       3.12.5.2      If Software is installed by Supplier, Supplier shall
                     perform tests to determine if Software meets Specifications
                     and the requirements of the Order(s) prior to completion of
                     Installation Services. Supplier shall provide copies of all
                     test results.

       3.12.5.3      Supplier shall, three weeks prior to shipment, notify
                     Customer of any known defects in Software, their
                     criticality and impact on the operation of the Software and
                     associated Product(s). Supplier shall also provide its
                     written plans and schedule for corrective action. Use or
                     operation of Software pursuant to this Clause shall not be
                     construed to be Acceptance or a waiver of any Customer
                     rights under this Agreement or applicable Order(s).

   3.12.6     SOFTWARE RELEASES

       3.12.6.1      Maintenance releases are patches, fixes and corrections
                     provided by Supplier to correct Software defects or
                     malfunctions. During the warranty period Supplier shall
                     notify Customer of the availability of such releases. The
                     notice shall describe the defects or malfunctions to be
                     corrected and the criticality of each. Maintenance releases
                     shall be made available to Customer at no additional charge
                     during the warranty period.

       3.12.6.2      New releases are releases which incorporate new features or
                     enhancements to the Software. Supplier shall notify
                     Customer of the availability of such releases. The notice
                     shall include a description of the features and
                     enhancements to be provided and the cost for each release.

       3.12.6.3      Supplier shall support each Software maintenance release
                     for a minimum of two (2) years from the release date and
                     shall support each new release for a minimum of eight (8)
                     years from the release date.


                                       26
<PAGE>
   3.12.7     SOFTWARE SUPPORT SERVICES

       3.12.7.1      Supplier shall provide Software maintenance as Ordered to
                     assure that such Software meets Specifications and remains
                     in good operating order. Maintenance Services shall
                     include:

           3.12.7.1.1  Maintenance releases, which correct defects or
                       malfunctions;

           3.12.7.1.2  Periodically published reports describing known "bugs"
                       and solutions therefor; except that Supplier shall
                       immediately notify Customer of known service-affecting
                       bugs and, if known, the solutions therefor;

           3.12.7.1.3  Issuing, maintaining and revising manuals and
                       documentation to incorporate new or revised operating
                       procedures resulting from corrections to and revisions of
                       the Software pursuant to the Clause 2.20 entitled
                       "Manuals and Documentation";

           3.12.7.1.4  Assisting in problem identification;

           3.12.7.1.5  Time spent by maintenance personnel, after their arrival
                       at Customer's site, awaiting additional maintenance
                       personnel or delivery of parts, supplies and similar
                       items;

           3.12.7.1.6  Returning inoperable Software to operating condition by
                       providing local or temporary patches and fixes; and

           3.12.7.1.7  Correcting defects in Software.

       3.12.7.2      Supplier shall provide a telephone number available
                     twenty-four (24) hours a day and seven (7) days a week at
                     which Customer may notify Supplier of the need for
                     Maintenance Services. Supplier shall respond within one (1)
                     hour after notification or as otherwise agreed.

       3.12.7.3      The above stated Maintenance Services shall be provided at
                     no charge during the warranty period. After the warranty
                     period such Services, together with hardware maintenance
                     Services, shall be chargeable at an agreed upon rate, not
                     to exceed (pound)100,000 per Switch, based upon the actual
                     cost of Maintenance Services provided to Customer during
                     the last year of the warranty period.

3.13     SPECIAL TECHNICAL SERVICES

Supplier will provide technical services associated with Software pursuant to
any Order(s). Technical Services are services which Customer requires to meet
its own customised uses for the Software and which are beyond the warranty,
maintenance and support services provided under this Agreement. Before any
Order(s) are issued the parties will agree to a work plan which will include,
but not be limited to project timeline, deliverables, Specifications and
performance requirements, Customer and Supplier Project Co-ordinators, and any
other necessary details agreed to by the parties. All work plans will be a part
of and governed by the terms and conditions of this Agreement.

3.14     ENTIRE AGREEMENT

  3.14.1       This Agreement, together with all referenced attachments, as well
               as Specifications and Orders shall constitute the entire
               Agreement between the parties with respect to the subject matter
               of this Agreement.

  3.14.2       This Agreement supersedes all prior oral and written
               communications, agreements and understandings of the parties with
               respect to the subject of this Agreement.


                                       27
<PAGE>
3.15     SIGNATURES

The parties intending to be legally bound have caused this Agreement to be
executed by their duly authorised representatives.

CUSTOMERS                                    SUPPLIER

TELEWEST COMMUNICATIONS GROUP LIMITED        NORTHERN TELECOM EUROPE LIMITED


authorised signature                         authorised signature


Larry Carleton                               J A Craig
print or type name of signatory              print or type name of signatory


President and Chief Operating Officer, TeleWest           President
title                                                     title


UNITED ARTISTS COMMUNICATIONS (SCOTLAND) VENTURE
     BY EDINBURGH CABLE LIMITED PARTNERSHIP, ITS GENERAL PARTNER
         BY UNITED ARTISTS CABLE TELEVISION EDINBURGH, INC., GENERAL PARTNER

              BY
                  authorised signature

                  Larry Carleton
                  print or type name of signatory

                  President and Chief Operating Officer, TeleWest
                  title

         BY US WEST CABLE TELECOM, INC., GENERAL PARTNER

              BY
                  authorised representative

                  Terald E. Voorhees
                  print or type name of signatory

                  Executive Vice-President, Telecoms Services, TeleWest
                  title


                                       28
<PAGE>
UNITED ARTISTS COMMUNICATIONS (NORTH EAST) PARTNERSHIP
     BY TYNESIDE CABLE LIMITED PARTNERSHIP, ITS GENERAL PARTNER
         BY UNITED ARTISTS CABLE TELEVISION TYNESIDE, INC., GENERAL PARTNER

                  BY
                  authorised signature

                  Larry Carleton
                  print or type name of signatory

                  President and Chief Operating Officer, TeleWest
                  title

     BY US WEST CABLE TELECOM, INC., GENERAL PARTNER

              BY
                  authorised representative

                  Terald E. Voorhees
                  print or type name of signatory

                  Executive Vice-President, Telecoms Services. TeleWest
                  title


AVON CABLE JOINT VENTURE
     BY AVON CABLE LIMITED PARTNERSHIP, ITS GENERAL PARTNER
         BY UNITED ARTISTS CABLE TELEVISION AVON, INC., GENERAL PARTNER

              BY
                  authorised signature

                  Larry Carleton
                  print or type name of signatory

                  President and Chief Operating Officer, TeleWest
                  title


         BY US WEST CABLE TELECOM, INC., GENERAL PARTNER

              BY
                  authorised representative

                  Terald E. Voorhees
                  print or type name of signatory

                  Executive Vice-President, Telecoms Services, TeleWest
                  title


                                       29
<PAGE>
UNITED ARTISTS COMMUNICATIONS (THAMES ESTUARY) PARTNERSHIP
     BY ESTUARIES CABLE LIMITED PARTNERSHIP, GENERAL PARTNER
         BY UNITED ARTISTS CABLE TELEVISION ESTUARIES, INC., GENERAL PARTNER

              BY
                  authorised signature

                  Larry Carleton
                  print or type name of signatory

                  President and Chief Operating Officer, TeleWest
                  title

         BY US WEST CABLE TELECOM, INC., GENERAL PARTNER

              BY
                  authorised representative

                  Terald E. Voorhees
                  print or type name of signatory

                  Executive Vice-President, Telecoms Services, TeleWest
                  title


LONDON SOUTH CABLE PARTNERSHIP
     BY UNITED CABLE (LONDON SOUTH) LIMITED PARTNERSHIP, GENERAL PARTNER
         BY UNITED ARTISTS CABLE TELEVISION U.K. INC., GENERAL PARTNER

              BY
                  authorised signature

                  Larry Carleton
                  print or type name of signatory

                  President and Chief Operating Officer, TeleWest
                  title

         BY US WEST CABLE TELECOM, INC., GENERAL PARTNER

              BY
                  authorised representative

                  Terald E. Voorhees
                  print or type name of signatory

                  Executive Vice-President, Telecoms Services, TeleWest
                  title



                                       30
<PAGE>
CABLE LONDON PLC

authorised signature

Gerry Campbell
print or type name of signatory

Managing Director
title


BIRMINGHAM CABLE LIMITED

authorised signature

Ted Campbell
print or type name of signatory

Managing Director
title


WINDSOR TELEVISION LIMITED

authorised signature

Marc Noblet
print or type name of signatory

Managing Director, General Cable Ltd
title


UNITED ARTISTS COMMUNICATIONS (COTSWOLDS) LIMITED

authorised signature

Larry Carleton
print or type name of signatory

President and Chief Operating Officer, TeleWest
title

                                       31
<PAGE>
EXHIBIT A         CUSTOMERS

This Exhibit A is attached to and made part of that certain General Purchase
dated 1 March 1993 (Agreement"), by and between Customer as defined in the
Agreement ("Customer") and Northern Telecom Europe Limited ("Supplier").

A1       PARTNERSHIPS AND REGISTERED ADDRESSES TABLE

<TABLE>
<CAPTION>
- -------------------------------------------------------------------------------------------------------
      FRANCHISE                 FRANCHISE HOLDER                                          REG. NO.
- -------------------------------------------------------------------------------------------------------

- -------------------------------------------------------------------------------------------------------
<S>                             <C>                                                      <C>
1.    TELEWEST WHOLLY OWNED FRANCHISES

      -------------------------------------------------------------------------------------------------
      Avon                      Avon Cable Joint Venture

      -------------------------------------------------------------------------------------------------
      Croydon, Kingston and     London South Cable Partnership
      Richmond and Merton and
      Sutton

      -------------------------------------------------------------------------------------------------
      North Thames Estuary      United Artists Communications (Thames Estuary)
      South Thames Estuary      Partnership

      -------------------------------------------------------------------------------------------------
      Edinburgh                 United Artists Communications (Scotland) Venture

      -------------------------------------------------------------------------------------------------
      Tyneside                  United Artists Communications (North East) Partnership

- -------------------------------------------------------------------------------------------------------


- -------------------------------------------------------------------------------------------------------
2.    LIMITED COMPANIES

      -------------------------------------------------------------------------------------------------
      Birmingham                Birmingham Cable Limited                                     2170379


The registered office for            CABLE PHONE HOUSE
the above listed company is:         SMALL HEATH BUSINESS PARK
                                     TALBOT WAY
                                     SMALL HEATH
                                     BIRMINGHAM  B10 OHJ

- -------------------------------------------------------------------------------------------------------
      Camden, Enfield,          Cable London plc
      Hackney and Islington,
      Haringey
      -------------------------------------------------------------------------------------------------

The registered office for            100 CHALK FARM ROAD
the above listed company is:         LONDON  NW1 8EH

- -------------------------------------------------------------------------------------------------------
      Hillingdon                Windsor Television Limited                                   1745542
      Windsor
- -------------------------------------------------------------------------------------------------------

The registered office for            CABLE HOUSE
the above listed company is:         WATERSIDE DRIVE
                                     LANGLEY
                                     BERKSHIRE  SL3 6EZ

- -------------------------------------------------------------------------------------------------------
                                TeleWest Communications Group Limited                        2514287

- -------------------------------------------------------------------------------------------------------
      Cotswolds                 United Artists Communications (Cotswolds) Limited            1743081
- -------------------------------------------------------------------------------------------------------

</TABLE>


                                       32
<PAGE>
EXHIBIT B         FAULT CLASSIFICATIONS

This Exhibit B is attached to and made part of that certain General Purchase
Agreement dated 1 March, 1993 ("Agreement"), by and between Customer as defined
in Exhibit A of the Agreement ("Customer") and Northern Telecom Europe Limited
("Supplier").

B1       FAULT PRIORITY CLASSIFICATIONS

B1.1     SYSTEM PROBLEMS ARE ASSIGNED ONE OF FIVE PRIORITY LEVELS AS FOLLOWS

   EMERGENCY

  E1           Degradation and/or Outage

  E2           Potential Degradation and/or Outage.

   NON-EMERGENCY

  S1           Service Affecting

  S2           Intermittently Service Affecting

  NS           Non-Service Affecting

B2       SERVICE CONDITIONS AND RESOLUTION OBJECTIVES

   The following description details the criteria used for the establishment of
   priorities and an indication of the resolution objectives.

B2.1     E1 DEGRADATION AND/OR OUTAGE

B2.1.1   SYSTEM FAULTS

          B2.1.1.1        System ceased call processing

          B2.1.1.2 System call processing degraded for reason such as:

             B2.1.1.2.1         a trunk group out of service;

             B2.1.1.2.2         ten percent (10%) or more of the total 
                                subscribers out of service;

             B2.1.1.2.3         one hundred (100) or more subscribers out of 
                                service;

             B2.1.1.2.4         inability to recover from initialisation; or

             B2.1.1.2.5         consistently slow dial tone (eight (8) second
                                delay or greater).

          B2.1.1.3 Non-usable billing data being entered on tape.

B2.1.2   RESOLUTION OBJECTIVE:

Immediate and continuous until the service level is restored to pre incident
operation.

B2.2     E2 POTENTIAL DEGRADATION AND/OR OUTAGE:


                                       33
<PAGE>
SYSTEM FAULTS

       B2.2.1      Standby Central Control (CC) out of service.

       B2.2.2      Any Central Message Control (CMC), Master Clock, Network 
                   Module (NM), Input/Output Controller (IOC), Peripheral 
                   Processor, or Network Plane out of service;

       B2.2.3 fifty percent (50%) or more of the equipped Disk Drive Units (DDU)
out of service.

RESOLUTION OBJECTIVE

Immediate and continuous until the service level is restored to pre incident
operation.

B2.3     S1 SERVICE AFFECTING:

B2.3.1   SYSTEM FAULTS

               B2.3.1.1       Software errors or product troubles directly and
                              continuously affecting any subscriber's service or
                              the customer's ability to collect revenue;

               B2.3.1.2       A problem that will seriously affect subscriber
                              service as in (a) at in service In service Date
                              (IS) date;

               B2.3.1.3       MTU or DDU problem (excluding maintenance and
                              administration).

               B2.3.1.4       Central Control Complex (CCC) transient errors
                              resulting in a loss of synchronisation (more than
                              twice per day);

               B2.3.1.5       Any Peripheral Module out of service;

               B2.3.1.6       Single restarts (more than one per day);

               B2.3.1.7       Inoperative internal data port of CMC
                              communication link;

               B2.3.1.8       Core equipment diagnostic failures (two or more
                              per day).

B2.3.2   RESOLUTION OBJECTIVE

       Status response in two weeks with a fix or work-around solution applied
       within four weeks. If the basic telephone service, defined as the ability
       to contact municipal emergency services, is directly affected, Supplier
       will undertake immediate investigation.

B2.4     S2 INTERMITTENTLY SERVICE AFFECTING.

B2.4.1   SYSTEM FAULTS

               B2.4.1.1       Software or product faults that only
                              intermittently affect service to one or more
                              classes of subscriber;

               B2.4.1.2       System related documentation errors which
                              categorically result in or lead to service
                              impairment;

               B2.4.1.3       Problems where the operating company can show
                              significant impact upon plant and traffic
                              operations and upon its ability to plan office
                              extensions.

               B2.4.1.4       Restarts (less than one (1) per day);


                                       34
<PAGE>
               B2.4.1.5       Office Alarm Unit is out of service;

               B2.4.1.6       Core equipment diagnostic failures (less than two
                              (2) per day);

               B2.4.1.7       CCC transient errors resulting in loss of
                              synchronisation (less than two (2) per day);

               B2.4.1.8       Peripheral circuit failures.

B2.4.2   RESOLUTION OBJECTIVE

       Status response in two (2) weeks with a fix or work-around solution
applied within eight (8) weeks.

B2.5     NS NON-SERVICE AFFECTING CONDITIONS.

B2.5.1   SYSTEM FAULTS

           B2.5.1.1        Service analysis, recorded announcement, operational
                           measurements, maintenance program, or network
                           management problems; or system related documentation
                           inaccuracies, which do not affect call processing or
                           revenue collection capabilities;

           B2.5.1.2        Non serving affecting software inconsistencies;

           B2.5.1.3        Peripheral equipment diagnostic failures, not
                           already defined above, which cannot be corrected
                           by the resident technician;

           B2.5.1.4        Test equipment failures for which a backup or
                           manual alternative can be employed;

           B2.5.1.5        Circuit pack testing problems.

           B2.5.1.6        Repetitive CCC transient errors with no loss of
                           synchronisation, which cannot be corrected by
                           resident skills;

           B2.5.1.7 Requests to analyse a store dump of a single occurrence
initialisation.

B2.5.2   RESOLUTION OBJECTIVE

       Status response in six weeks. Upon the completion of the investigation, a
       fix, if applicable, will be scheduled for a future standard software,
       product, or documentation update or revision.


                                       35
<PAGE>
EXHIBIT C         SWITCH PURCHASES

This Exhibit C is attached to and made part of that certain General Purchasing
Agreement dated 1 March 1993 ("Agreement"), by and between Customer as defined
in Exhibit A ("Customer") of the Agreement and Northern Telecom Europe Limited
("Supplier").

                                    RECITALS

WHEREAS, Customer issued Request for Proposal entitled "Switch/RFP/001" dated
November 1993, (the "RFP") to Supplier soliciting a proposal for Switches
(defined herein);

WHEREAS, Supplier responded to Customer's RFP by submitting its proposal which
offered to provide local switches comprised of DMS-100 Products, Software and
Services ("Switch" or "Switches") as well as individual items of Products,
Software and Services dated 4 January 1993 ("Proposal");

                                    AGREEMENT

NOW, THEREFORE, in consideration of the mutual promises and advantages to the
parties, the parties incorporate by reference and agree to the accuracy of the
above recitals and further agree as follows:

C1       SCOPE

  C1.1         This Exhibit C to the Agreement sets forth the terms and
               conditions under which Customer agrees to purchase and Supplier
               agrees to provide Product(s), Software and Services as further
               described herein. This Exhibit C shall govern the procurement of
               new Switches as well as Growth (defined herein) to new and
               existing Switches.

  C1.2         Where any term and/or condition found elsewhere under this
               Agreement conflicts with this Exhibit C, the terms and conditions
               of this Exhibit C shall prevail.

C2       DEFINITIONS

  C2.1         In addition to the definitions set forth elsewhere in the
               Agreement, when used in this Exhibit C the capitalised terms set
               forth herein shall have the meaning so indicated.

  C2.2         "Acceptance" for new Switches means Customer's written
               acknowledgement that the Switch Purchases, procured hereunder
               conform to the Specifications and the requirements of the
               applicable Order(s) including C7 certification which requires C7
               PTO interconnection as evidenced by satisfactory completion of
               Customer's acceptance tests and as further described in Clause
               2.12 entitled "Acceptance". Supplier shall not be required to pay
               the damages specified under Clause 2.34 of the Agreement if a
               delay in Acceptance is caused by Customer's failure to establish
               a commercial interconnect agreement with the appropriate national
               network carrier(s) for which interconnection is required. Such
               agreement may require an operational testing slot in accordance
               with a high level project plan. Customer's acceptance tests shall
               be based upon the Specifications and requirements of the Order
               and shall be agreed upon in advance.

  C2.3         "Delivery Interval" means the interval of time beginning at
               Supplier's acceptance of an Order from Customer and ending at
               Acceptance.

  C2.4         "Feature" means the capabilities or functions available, or
               planned to be available, on Switches.


                                       36
<PAGE>
  C2.5         "Growth" means Products, Services and licenses for Software on an
               as needed basis for extensions, expansions, additions,
               maintenance and spares for Switches procured hereunder.

  C2.6         "Host" means the Central Office Concentrator option quoted under
               Supplier's Proposal.

  C2.7         "List Price" means Supplier's published price for Products,
               Software and Services.

  C2.8         "Remote Line Concentrator Module" or "RLCM" means Supplier's
               remote switching centre Products, Software and Services as
               described under Attachment H of Supplier's Proposal.

  C2.9         "Remote Switching Centre" or "RSC" means Supplier's remote
               switching centre Products, Software and Services as described
               under Attachment H of Supplier's Proposal.

  C2.10        "Small Remote Unit" or "SRU" means Supplier's remote switching
               centre Products, Software and Services as described under
               Attachment H of Supplier's Proposal.

  C2.11        "Small Remote Unit - Street Cabinet" or "SRU-S" means Supplier's
               remote switching centre Products, Software and Services as
               described under the Street Mounted Concentrator option quoted
               under Supplier's Proposal.

  C2.12        "SuperNode Small Exchange" or "SNSE" means the Supplier's
               mid-range Central Office Concentrator option quoted under
               Supplier's Proposal.

  C2.13        "Vendor Item" means Product(s) procured by Supplier from other
               suppliers, which are provided as part of the Order.

  C2.14        "Working Lines" means lines that are connected to a customer of
               Consortium's and that are earning revenue.

C3       SUPPLIER'S OFFER

  C3.1         Supplier's Proposal and subsequent correspondence are included
               herein as Appendix 1, attached hereto and by this reference
               incorporated into this Exhibit C of the Agreement. The
               representations made by Supplier in its Proposal as modified
               and/or supplemented in the subsequent correspondence unless
               otherwise modified or deleted under this Exhibit C shall be
               binding upon Supplier for Switch Orders. However, only the terms,
               conditions and/or requirements stated under this Agreement and
               this Exhibit C shall be considered binding on Customer.

C4       PRICES AND DISCOUNTS

  C4.1         Supplier's fully discounted net price per Switch line shown in
               the table below, includes the initial installations and the first
               two (2) extensions per Switch:


                                       37
<PAGE>
PRICE PER LINE BASED UPON PURCHASE OBJECTIVE



                                       [CONFIDENTIAL PORTION OMITTED]


                           LINES           LINES           LINES           LINES

PURCHASE OBJECTIVE

- ---------------------------------------------
HOST PRICE PER LINE:

- ---------------------------------------------
SNSE PRICE PER LINE:                    [CONFIDENTIAL PORTION OMITTED]

- ---------------------------------------------
RSC PRICE PER LINE:

- ---------------------------------------------
RLCM PRICE PER LINE:

- ---------------------------------------------
SRU PRICE PER LINE:



   No retrospective price adjustments will be made to previous Purchases upon
   Consortium achieving the next pricing level.

   The above stated price per line includes the Product(s) as listed in Appendix
   2, entitled "Price Per Line" attached hereto and by this reference
   incorporated into this Agreement and Software as defined in Attachment K of
   the Proposal, and Services including but not limited to [CONFIDENTIAL PORTION
   OMITTED] In the case of Switch remotes, (RSC, RLCM and SRU), the price
   includes [CONFIDENTIAL PORTION OMITTED] These prices include all customs and
   import duties, but exclude VAT.

  C4.2         For any Products ordered for initial Switches that are of a type
               not listed in Appendix 2 or in a quantity greater than that
               listed under Appendix 2, Customer [CONFIDENTIAL PORTION OMITTED]
               Unless otherwise agreed, Supplier's Software and Services
               [CONFIDENTIAL PORTION OMITTED]

  C4.3         For the third extension or beyond of each Switch, the additional
               Growth Products ordered under this Agreement shall [CONFIDENTIAL
               PORTION OMITTED] Unless otherwise agreed, Supplier's Software and
               Services [CONFIDENTIAL PORTION OMITTED]

  C4.4         The List Price for Products, Software and Services shall be as
               set forth in the price list in Appendix 3 entitled "Price List",
               attached hereto and by this reference incorporated into this
               Agreement. Supplier may make any updates, revisions and additions
               to said price list by providing notice to the location specified
               in Clause 2.48 of this Agreement. Changes to the Price List shall
               not be inconsistent with the terms and conditions specified in
               Clause 2.9 of the Agreement.

  C4.5         In the event that certain Product(s) and/or Software in
               Supplier's price list are discontinued and replaced by an item of
               Product and/or Software which List Price is higher due to
               additional functions and/or Features not required by Customer,
               Supplier agrees that Customer shall [CONFIDENTIAL PORTION 
               OMITTED]

  C4.6         [CONFIDENTIAL PORTION OMITTED]

C5       REMOTE CONCENTRATOR UNITS

  C5.1         Supplier shall credit the Customer with a Purchase credit based
               upon amounts obligated to be paid or payable by Customer to
               Mercury Communications Limited (Mercury) to compensate Mercury
               for its stranded capital investment in Remote Concentrator Units
               ("RCU's") resulting from Customer's removal of service from such
               RCU's installed in the network. [CONFIDENTIAL PORTION OMITTED]

                                       38
<PAGE>
               Such credits will be determined on a Customer by Customer basis
               at the time the Supplier receives a Switch Order from each
               Customer. Customer may apply such credit to any Order for
               Products, Software and Services from Supplier, including Orders
               for new Switches.

  C5.2         Supplier agrees to credit Customer with additional RCU credits
               pursuant to Clause C5.1 in the event that additional Customers
               become part of this Agreement prior to 1 April 1993.

C6       INVOICING AND PAYMENT

  C6.1         Should Customer choose not to finance Purchases pursuant to
               Clause 2.8, then Supplier shall invoice Customer for Products,
               Software and Services pursuant to Clause 2.7 of this Agreement.
               As an alternative payment method, at Customer's option, Supplier
               shall invoice Customer for Software on a per Working Line basis.
               The price per line to be invoiced under this option would be
               determined by reducing the per line prices in Clause C4.1 by the
               amount of Software included therein at [CONFIDENTIAL PORTION
               OMITTED] per line. The remaining price represents the Product(s)
               and Services price. Base Software would then be billed at a
               one-time rate of payment of [CONFIDENTIAL PORTION OMITTED] per
               line. This amount would be payable on a calendar quarterly basis,
               with the first payment being based on the number of Customer's
               Working Lines at the end of the first calendar quarter following
               the first Switch Acceptance. Customer will subsequently pay an
               amount equal to the increase in the number of Working Lines for
               each subsequent calendar quarter at the end of that calendar
               quarter, multiplied by [CONFIDENTIAL PORTION OMITTED] The
               following base Software is included in the per line pricing in
               Clause C4.1:

               o  Foundation and Core Centrex

               o  LAMA

               o  BTUP

               o  PLD and/or Line (where appropriate)

               o  CRSC software if CRSC is purchased

               o  SRU software if SRU or SRU-S is purchased

               Customer must clearly mark on the Order if the option under this
               Clause C6.1 is required.

  C6.2         Consortium shall advise the Supplier in writing, within
               [CONFIDENTIAL PORTION OMITTED] of each calendar quarter end, of
               the number of Working Lines in operation for the entire
               Consortium network for the calendar quarter just ended,
               identifying also the number of Working Lines connected for
               Software for which an additional price per line is identified
               herein.

  C6.3         The Supplier shall have the right to audit the number of Working
               Lines in operation for each calendar quarter end.

  C6.4         Customer shall not be required to pay for Software Features
               utilised for the purposes of testing or for Customer's internal
               business.

                                       39
<PAGE>
  C6.5         It is preferable that all Customers choose the same method of
               payment (i.e., outright purchase as described under Clause 2.7,
               Software price per line as described under Clause C6.1 or
               financing as described in Exhibit E). However, if the method
               described under "Software price per line" as described under
               Clause C6.1 is not chosen by all of the companies comprising
               Customer herein then Supplier and Customer(s) shall meet and
               mutually agree upon the method of proceeding.

  C6.6         ADDITIONAL FEATURE SOFTWARE

               Feature Software not included in base price per line stated under
               Clause C4.1 but that is identified in Attachment K of Supplier's
               Proposal can be purchased as follows:

       C6.6.1        The Customer may purchase a Software Module on a per Switch
                     basis, as defined in Attachment K and priced in section 9.8
                     of the Supplier's Proposal; or

       C6.6.2        The Customer may purchase Software on a price per line
                     basis, calculated on a case by case basis, according to the
                     following generic formula:

                         [CONFIDENTIAL PORTION OMITTED]

       LEGEND:

                         [CONFIDENTIAL PORTION OMITTED]

       WHERE:

                         [CONFIDENTIAL PORTION OMITTED]

       EXAMPLE:

                         [CONFIDENTIAL PORTION OMITTED]

C7       PURCHASE OBJECTIVES

  C7.1         It is the intent and Purchase objective of all the parties listed
               as Customer under Exhibit A in the aggregate to place Orders for
               Products, Software and Services in the amount of [CONFIDENTIAL
               PORTION OMITTED] Working Lines over the term of the Agreement, as
               detailed in the RFP.

  C7.2         In addition to the establishment of this initial Purchase
               objective, the parties listed as Customer under Exhibit A agree
               to update, each six (6) months beginning from the effective date
               of this Agreement, such Purchase objective with a five (5) year
               cumulative forecast covering the term of this Agreement. Such
               forecasts shall identify the actual locations and numbers of
               lines for Switches already procured during the term of this
               Agreement and the proposed locations and numbers of lines for new
               Switches to yet be procured from Supplier over the remaining term
               of this Agreement, in order to determine the appropriate price
               per line under Clause C4.1. It is understood and agreed that such
               forecasts are provided for Supplier's use in planning, and do not
               represent commitments on the part of Customer to procure such
               Switches, and shall be utilised to determine the applicable price
               to be applied under Clause C4.1 for the following six (6) months
               Order period.

  C7.3         Should additional Customer's be included within this Agreement
               before 1 April 1993 then the Purchase objective shall be adjusted
               accordingly. The price for any Orders received prior to 1 April
               1993 will be determined by the revised Purchase objective.

                                       40
<PAGE>
C8       DELIVERY

  C8.1         The Supplier's standard programme from Order to Acceptance
               (Supplier-TeleWest DMS-100 generic plan) is included in Appendix
               5, entitled "Delivery" attached hereto and by this reference
               included in this Agreement .

  C8.2         Upon acceptance of an Order the Supplier shall proceed with the
               work in accordance with this standard programme or as modified by
               that Order.

  C8.3         If the Supplier at any time has reason to believe that the
               programme for any Order may be delayed the Supplier shall
               promptly notify the Customer. If and to the extent that the
               programme is delayed by reasons of Force Majeure the programme
               shall be extended accordingly, subject to Clause 2.32.

  C8.4         If the Customer at any time has reason to believe that the date
               by which it is to have the site, equipment or services ready for
               use by the Supplier may be delayed the Customer shall promptly
               advise the Supplier. In such event the resultant programme delay
               and/or cost impact, if any, shall be reflected in an appropriate
               Order amendment.

C9       TECHNOLOGY OBSOLESCENCE

  C9.1         Supplier and Consortium will work together to minimise the impact
               of product obsolescence and the loss of the Customer's
               competitive position through the provision of regular technology
               working parties which will directly assist in the product roll
               out and custom Research and Development commitments for the
               Customer. These working parties will consist of the Consortium
               and technical experts from both the Supplier and the Supplier's
               agents (Bell Northern Research). The Supplier proposes that the
               first such working party be established during the 1st calendar
               quarter 1993 and thereafter on a calendar quarterly basis. Where
               such system developments will be of benefit to the Customer, the
               Supplier will offer to the Customer an appropriate credit to
               upgrade the installed systems. Such appropriate credits will be
               determined on a case by case basis and will take into
               consideration a mutually agreed percentage of the audited
               depreciated book value of the equipment being impacted.

               Consortium and Supplier agree to develop a method to determine
the appropriate credit.

C10      BELL NORTHERN RESEARCH RATIONALIZED INSTRUCTION SET COMPUTING PROCESSOR

  C10.1        Supplier shall upgrade the Switches to Bell Northern Research
               Rationalized Instruction Set Computing (BRISC) processors at no
               additional charge where it is found that the recommended maximum
               Busy Hour Call Attempts (BHCA) capacity for the Cable Television
               (CATV) environment as detailed in the Supplier's response to the
               RFP section 3.3.2.8 are not achieved, provided that the failure
               to achieve such recommended maximum BHCA capacity is not
               attributable to the introduction of additional Software features
               or to a traffic volume and/or call mix varying from that detailed
               in the BHCA capacity predictions.

  C10.2        Customer may Order the BRISC processor with the Order for an
               initial Switch at the incremental price of (pound)25,000.

C11      CABLEPHONE

  C11.1        It is Customer's desire to deploy an integrated transmission
               product that will provide both CATV and telephony. Supplier

                                       41
<PAGE>
               agrees to develop a product to address Customer's needs in this
               market and will submit a proposal for this product to Customer by
               May of 1993.

                         [CONFIDENTIAL PORTION OMITTED]

C13      DIGITAL ACCESS SIGNALLING SYSTEM II

  C13.1        Supplier agrees to provide Customer, at no additional charge,
               with signalling converters which convert Digital Private Network
               Signalling System (DPNSS) circuits to Digital Access Signalling
               System (DASS II) functionality. The number of converters provided
               at no additional charge shall not exceed twenty (20) 2 Mbps ports
               per Switch. However, should Customer require additional
               converters for initial Switch Orders, Customer and Supplier agree
               to mutually agree upon a quantity of converters to be provided by
               Supplier at no charge, which will be sufficient for Customer's
               requirements. Customer and the Supplier agree to work together to
               maximise the deployment of DPNSS in all franchises. In addition,
               Supplier agrees to develop a sales incentive programme that will
               motivate Customer's sales force to sell DPNSS as an alternative
               customer service offering to DASS II.

C14      SUPPORT OF E1 LINKS

  C14.1        Supplier represents that its Switch will support permanent
               ("nailed up") 64 Kbps connections and by aggregation can support
               E1 links. This facility is controlled from the Maintenance and
               Administration Position (MAP) of the Switch.

C15      SPARES

  C15.1        Supplier's Switch price per line detailed in Clause C4.1 includes
               critical spares as specified in Appendix 2. Supplier will deliver
               additional spares on an as needed basis. In the event of an
               emergency out-of- service condition, Supplier will make spares
               available within a twenty four (24) hour shipment basis to site
               from time of notification. These spares will be priced at the
               merchandise price contained in this Agreement.

C16      SUBSCRIBER PULSE METERING STRATEGY

  C16.1        The Supplier and the Consortium will define the requirements for
               Subscriber Pulse Metering ("SPM") on a per franchise basis and
               within thirty (30) days of the date of this Agreement determine
               the best method for delivering this interface. Should the
               Consortium decide upon an alternative method of customer
               connection other than SPM the Supplier shall support the
               equipment that Customer procures for this purpose. [CONFIDENTIAL
               PORTION OMITTED] The Supplier will work closely with the
               Consortium to generate the appropriate marketing packages so that
               the increased revenues of alternatives to SPM can be fully
               realised by the Customer.

C17      SIGNAL SWITCHING POINT FUNCTIONALITY

  C17.1        Supplier represents that its Switch will function as a Signal
               Switching Point (SSP) with the addition of currently available
               Product(s) and Software.

                         [CONFIDENTIAL PORTION OMITTED]

C19      EMERGENCY REPLACEMENT

  C19.1        In the event that an emergency or catastrophic event affects any
               Switch which Customer has purchased from Supplier, Supplier


                                       42
<PAGE>
               agrees to immediately provide an emergency back-up Switch which
               may be utilised by Customer until a replacement Switch arrives.
               Supplier agrees to retain such emergency back-up Switch as well
               as an emergency stock of Product(s), Software and sufficient
               numbers of trained personnel to provide Services in the event of
               an emergency. Such Switch shall be capable of serving not less
               than 1,000 lines. In the event Customer orders a replacement
               Switch from Supplier, Supplier agrees that such Switch shall have
               emergency priority in Supplier's manufacturing and production
               schedule.

  C19.2        Supplier shall provide to Customer a telephone number at which
               Customer may obtain emergency replacement parts twenty four (24)
               hours a day, seven (7) days a week.

  C19.3        At Customer's option, Supplier shall have available such
               emergency Switch described hereunder prior to 31 December 1993,
               if such Switch is sized less than 1500 lines; or prior to 30 June
               1994 when Supplier will be capable of manufacturing such Switch
               with Compact Peripheral Module frames, pursuant to Clause C12,
               which will increase the capacity of such emergency Switch to
               approximately 20,000 lines.

C20      INITIAL SUPPORT

  C20.1        Supplier agrees to provide for a [CONFIDENTIAL PORTION OMITTED]
               technical personnel under this Agreement on-site to assist
               Consortium with the planning, implementation and the cutover of
               Supplier's Switches and Network Operations Support systems in
               Customer's and/or Consortium's network. Such personnel shall be
               available to Consortium for [CONFIDENTIAL PORTION OMITTED] on an
               as needed basis by Customer and Consortium. Prior to the date of
               such notice, Consortium and Supplier shall meet to discuss the
               scope of work and skill level of the individuals required.

  C20.2        Supplier agrees to provide [CONFIDENTIAL PORTION OMITTED] switch
               engineers under this Agreement on-site to assist Consortium with
               Switch design and the development of Orders for Supplier's
               Switches. Such personnel shall be available to Consortium for a
               [CONFIDENTIAL PORTION OMITTED] on an as needed basis by Customer
               and the Consortium.

  C20.3        Upon request, Supplier will provide Customer, at no charge, a
               reasonable quantity of user documentation and marketing
               literature regarding Switch Features. Supplier hereby grants to
               Customer a non-exclusive, non-transferable royalty-free right and
               license to use, reproduce in whole or in part and to disseminate
               the mutually agreed upon documentation or literature in
               conjunction with Customer's offering of such services utilising
               the Switches.

C21      GENERIC SOFTWARE

  C21.1        The Supplier shall provide at [CONFIDENTIAL PORTION OMITTED] It
               is advisable to have all Switches in the network maintained at
               the same BCS Software level.

  C21.2        The Supplier is keen to encourage the wide spread use of its
               advanced Software and hence will allow [CONFIDENTIAL PORTION
               OMITTED]

       C21.2.1       The Supplier is notified in advance of the use of the
                     additional modules so that the product configuration can be
                     audited to identify (1) any additional Product
                     requirements; (2) the suitability of the Software release
                     and its proposed application in the UK; (3) and to ensure
                     that appropriate support personnel are available (where
                     necessary);

                                       43
<PAGE>
       C21.2.2       Customer agrees to allow Supplier to prepare a capacity
                     analysis to ensure that no adverse impacts will occur due
                     to the use of this additional Software;

       C21.2.3       Any additional Product(s) identified by Supplier as being
                     required is purchased and installed in the Switch before
                     the Software is used. The price for this Product
                     [CONFIDENTIAL PORTION OMITTED]

  C21.3        Customer understands that Supplier may load Software Features on
               the BCS generic Software for which Customer will not have paid an
               Right To Use ("RTU"). Customer agrees that upon commercial
               deployment of such Feature(s) including use of such Feature by
               Customer's customers, the Software Right to Use shall be paid to
               Supplier as quoted under this Agreement.

  C21.4        Supplier shall prepare and package Software programs and
               releases, including maintenance releases, which will allow
               Customer to skip programs or releases as its discretion without
               being required to purchase or load skipped programs, Features, or
               releases provided that Customer loads at least every third BCS
               generic Software load.

  C21.5        Customer, at its discretion, may skip Batch Change Supplements
               ("BCS") generic Software programs. There will be no charge
               whatsoever for such programs skipped by Customer, and Customer
               shall not be charged any additional amounts to procure subsequent
               Software programs, other than the normal prices, less applicable
               discounts, for those subsequent Software programs.

  C21.6        Unless otherwise specified in an Order, Supplier shall provision
               each Switch with the most current commercially available Software
               BCS on the Delivery Date.

  C21.7        Supplier agrees to provide Customer with the following
               information, in writing, each time a new Software generic is
               released and ordered by Customer :

       C21.7.1       Notification of any known fault on a site specific Customer
                     Service Report (CSR) with severity levels as defined under
                     Exhibit B of this Agreement;

       C21.7.2       The criticality of each fault;

       C21.7.3       The impact of each fault on the operation of the Software
                     and associated Products; and

       C21.7.4       Supplier's plans, schedules and performance results for
                     corrective action and regression testing with respect to
                     the faults identified in this Clause C21.7, as well as for
                     continuing Software quality and reliability improvement.

       C21.7.5       Supplier agrees to provide the information described in
                     this Clause C21.7 thirty (30) days prior to Delivery Date
                     provided such release has been generally available for
                     thirty (30) days.

C22      PLANNING INFORMATION

  C22.1        Supplier agrees to regularly provide Customer with a schedule for
               Switch Products and Software releases. Such schedule will be
               provided twelve (12) to eighteen (18) months prior to the general
               availability date of the Switch and/or Software release including
               Feature and other planning information such as release dates and
               planning costs.

                                       44
<PAGE>
  C22.2        Supplier agrees to issue a preliminary release letter
               ("Preliminary Release Letter") to Customer describing the Feature
               content of future Switch Software generic releases. Such
               Preliminary Release Letter will be delivered three (3) months
               prior to the general availability date of such Switch Software
               generic release. The Preliminary Release Letter shall provide
               detailed information for the operation, administration, and
               maintenance planning associated with the new capabilities and
               enhancements to the Switch Software generic release.

C23      QUALITY

  C23.1        In addition to the support requirements indicated in the
               Agreement, Supplier's ongoing support for Software releases shall
               include, but not be limited to, the following:

       C23.1.1       Supplier shall continue to provide information as 
                     specified under Clause C21.7 on an ongoing basis;

       C23.1.2       Publishing, maintaining and revising as necessary Software
                     manuals and Documentation to incorporate new or revised
                     operating procedures resulting from corrections to and
                     revisions of the Software;

       C23.1.3       Assisting in Software problem identification;

       C23.1.4       Returning inoperable Software to operating condition; and

       C23.1.5       Issuing maintenance releases to Software.

  C23.2        The Supplier shall ensure that Electro Static Discharge ("ESD")
               notices are displayed on all racks and on the packing case of all
               loose circuit packs.

C24      TRAINING

  C24.1        [CONFIDENTIAL PORTION OMITTED]

  C24.2        It is understood, unless otherwise specified that available
               Training Credits will be used to pay for courses scheduled by
               Customer.

  C24.3        Customer and/or Consortium may apply Training Credits toward any
               training course, training Product(s), training Right to Use Fees,
               Computer Based Training ("CBT"), including tuition fees for CBT
               modules and instructor expenses for training performed on-site.
               Training Credits used for such purposes will be exchanged at the
               rate of [CONFIDENTIAL PORTION OMITTED] Additionally, Customer
               and/or Consortium may apply accrued free training credits toward
               the tuition fees of Supplier's Computer Based Training (CBT)
               modules .

  C24.4        Supplier agrees to provide a semi-annual sales seminar on newly
               developed Switch Features and Services at no additional charge.

  C24.5        The Supplier understands it is the Customer's intent to utilise
               CBT whenever possible. The Supplier agrees to develop and add
               courses to Suppliers' CBT curriculum, subject to Supplier's
               capability to develop such courses at a reasonable cost. The
               prioritisation of such course development shall be determined
               jointly, based on the Customers needs.

  C24.6        Supplier shall provide a calendar quarterly report of: Training
               Credits available to Customer and Consortium, new Training
               Credits added, Training Credits used for each calendar quarter
               and:

                                       45
<PAGE>
       C24.6.1       Total number of free training days available to Customer;

       C24.6.2       Number of training days used by trainees;

       C24.6.3       Trainee and franchise names; and

       C24.6.4       Course name/number taken.

C25      MARKETING

  C25.1 With respect to the marketing centre Supplier agrees that:

       C25.1.1       If the Agreement includes only the franchises [CONFIDENTIAL
                     PORTION OMITTED] Supplier will provide an SRU [CONFIDENTIAL
                     PORTION OMITTED] and the associated CPE [CONFIDENTIAL
                     PORTION OMITTED] In addition, Supplier agrees to provide
                     [CONFIDENTIAL PORTION OMITTED] for the franchises in which
                     [CONFIDENTIAL PORTION OMITTED] at a site to be determined.

       C25.1.2       [CONFIDENTIAL PORTION OMITTED]

C26      CONFIGURATION AND PRICING SYSTEM

  C26.1        The Supplier shall demonstrate to Consortium its configuration
               and pricing system. If following such demonstration the system is
               deemed suitable by Consortium, during the term of this Agreement,
               Supplier will make the system available for Consortium's use.
               Customer understands that the system was designed for Supplier's
               internal use and is not fully supported as a commercial product.
               However, Supplier agrees to provide Consortium a reasonable
               amount of assistance in Consortium's use of such system.

C27      ONGOING SUPPORT

  C27.1        Supplier shall have a representative to act as Supplier's liaison
               to Customer's organisation. Such liaison shall be responsible for
               interfacing with Customer and for ensuring that Supplier provides
               and maintains a sufficient level of qualified technical and other
               personnel to completely support Customer's needs.

  C27.2        Customer and Supplier agree to pursue industry standardised
               interoperability and to participate in international and national
               standards bodies which have an effect upon Local Switches and
               their component Products, Software and Services. Supplier agrees
               to participate with Customer and Customer's other vendors in
               discussing and promoting agreement between the parties regarding
               interfaces and standards related to inter working with the
               Switches. Supplier also agrees to work co-operatively with
               Customer and other parties, including Customer Premises Equipment
               ("CPE") vendors, to resolve issues expeditiously.

C28      INTERVALS AND SCHEDULES

  C28.1        Supplier's Delivery Interval for Switches and individual
               Products, Software and Services shall be twenty (20) weeks unless
               such Order specifies a different Delivery Interval and Supplier
               accepts such Order in accordance with Clause 2.4.


                                       46
<PAGE>
C29      ONGOING SUPPORT FOR SOFTWARE RELEASES AFTER WARRANTY

  C29.1        After warranty, in the event Supplier's Software is determined to
               be non-compliant to the Specifications and requirements of this
               Agreement, Supplier shall correct such non-conforming Software to
               the original Specification at no additional charge to Customer.

C30      REPORTS

  C30.1        Supplier shall provide Customer a calendar quarterly Order and
               shipment report for Products Ordered under this Agreement which
               shall contain aggregate information for all Orders and shipments
               including sites sorted by:

  C30.2        Site name;

  C30.3        Site Order price (per Customer's Order);

  C30.4        Status of site schedule (i.e., ordered, delivered, installed);
               and

  C30.5        Actual total invoice amount per site;

  C30.6        Supplier shall deliver all reports required herein to the
               addresses specified under Exhibit A.

C31      ORDER AND CUSTOMER INFORMATION PROCESS FOR A NEW SWITCH

  C31.1        Customer may procure a new Switch by issuing an Order. Such Order
               shall state the number of lines, Acceptance Date and any other
               pertinent information. Supplier's acceptance of such Order shall
               be in compliance with Clause 2.4 of this Agreement.

  C31.2        Upon receipt of such Order or as previously agreed between the
               parties, Supplier and Customer shall establish a date for a
               Customer Information (C/I) meeting, which will further define the
               site specific requirements for the Switch.

  C31.3        Subject to Clause 2.4.4, Customer shall be obligated to procure
               Product(s), Software and Services, and Supplier shall be
               obligated to provide Product(s), Software and Services, under
               this Exhibit A only when an Order has been accepted by Supplier.

  C31.4        Upon completion of the C/I, Supplier shall respond to Customer
               with a document which provides a detailed breakdown of Products,
               Software and Services required to meet Customer's requirements
               and Specifications as defined in the C/I. At such time the Order
               will be amended and agreed between the parties in writing to
               reflect the changes resulting from the C/I.

C32      INSTALLATION

  C32.1        The Supplier will act on Customer's behalf and provide the
               necessary Technical Support required to obtain C7 Certification
               and PTO interconnection with Mercury. If interconnection with
               British Telecom Communications Limited ("BT") is required
               Customer and Supplier shall mutually agree upon any additional
               time required to complete such C7 certification and
               Interconnection.

  C32.2        Customer shall remain responsible for completing the required
               interconnect agreements with Mercury and BT as well as for
               providing all the transmission and transport facilities required
               for such interconnection. Supplier's responsibility is to assist
               in all technical aspects associated with the Purchases which will
               involve:

                                       47
<PAGE>
       C32.2.1       Assistance in preparing the Switch for C7 interconnect 
                     testing;

       C32.2.2       Performing Switch test cases during the C7 interconnect 
                     test phase,

       C32.2.3       Analysing and where possible rectifying any potential 
                     problems pertaining to the Switch;

       C32.2.4       Attending Interconnect Technical planning meetings;

       C32.2.5       Assisting in completion of technical documentation relating
                     to the Switch and required by the C7 interconnect
                     agreement.

               The Technical Support does not include activities such as booking
               appropriate testing slots with interconnect partners, ordering
               transmission links or attending commercial meetings.

  C32.3        All line and trunk datafill provided by the Customer will be
               included in the in-service databuild.

  C32.4        If requested, Supplier will assist Customer in transferring
               existing customers from Mercury RCU's onto the Switch. Supplier
               will fully project manage and engineer this operation for an
               additional [CONFIDENTIAL PORTION OMITTED]



                                       48
<PAGE>
EXHIBIT C         APPENDIX I

CI-1     SUPPLIER'S OFFER

This Appendix 1 to Exhibit C of the Agreement incorporates Supplier's Proposal
and all subsequent correspondence relating to the Proposal shall serve to
modify, delete, clarify, or add to the referenced Clause(s) of Supplier's
Proposal and correspondence.








                                       49
<PAGE>
EXHIBIT C         APPENDIX II

CII-1    PRICE PER LINE

This Appendix 2 to Exhibit C of the Agreement contains the Product(s) and
Software contained in the price per line stated in Clause C4.1 and the
associated assumptions.

Price includes Product as defined in herein, [CONFIDENTIAL PORTION OMITTED]
These prices include all customs and import duties, but exclude VAT.

Prices exclude [CONFIDENTIAL PORTION OMITTED]

ENGINEERING ASSUMPTIONS

PERCENT OF ALL LINES:


<TABLE>
<CAPTION>
- ------------------------------------------------------------------------------------------------------
                                            TRAFFIC          % LINES EQUIPPED     CALL HOLDING TIME
                                           (ERLANGS)
- ------------------------------------------------------------------------------------------------------
<S>                                       <C>               <C>                  <C>
BUSINESS LINES

- -------------------------------------
RESIDENTIAL LINES                                     [CONFIDENTIAL PORTION OMITTED]

- -------------------------------------
TRUNK TRAFFIC

- -------------------------------------
ON-NET/OFF-NET TRAFFIC SPLIT
- ------------------------------------------------------------------------------------------------------
</TABLE>


FEATURES (% OF ALL LINES).

[CONFIDENTIAL PORTION OMITTED]

MAJOR PRODUCT ELEMENTS INCLUDED ARE:

[CONFIDENTIAL PORTION OMITTED]





                                       50
<PAGE>
[CONFIDENTIAL PORTION OMITTED]





                                       51
<PAGE>
[CONFIDENTIAL PORTION OMITTED]





                                       52
<PAGE>


[CONFIDENTIAL PORTION OMITTED]




                                       53
<PAGE>
TELEWEST GROUP, GENERAL PURCHASING AGREEMENT

<TABLE>
<CAPTION>
- ---------------------------------------------------- ------------------- ----------------------- ----------------
HOST NAME                                            RSC (5000 LINES)
- ---------------------------------------------------- ------------------- ----------------------- ----------------
<S>                                                  <C>                 <C>                     <C>

- ---------------------------------------------------- ------------------- ----------------------- ----------------


- ---------------------------------------------------- ------------------- ----------------------- ----------------

                    Description                          Subsystem               Module             Quantity

- ---------------------------------------------------- ------------------- ----------------------- ----------------
6000B 2.2M Digital Distribution Frame with blocks    OEM                 OEM DDF                               1
- ---------------------------------------------------- ------------------- ----------------------- ----------------
6002A Main Distribution Frame - no connectors.       OEM                 OEM MDF FRAME                         6
- ---------------------------------------------------- ------------------- ----------------------- ----------------
Krone 237A Connection Strip.                         OEM                 OEM MDF STRIP                     1,025
- ---------------------------------------------------- ------------------- ----------------------- ----------------
Coax cable for XPM's                                 OEM                 OEM XPM CABLE                         5
- ---------------------------------------------------- ------------------- ----------------------- ----------------
MTM Conference Circuit Shelf                         TM EQUIPT           MTM CONF                              3
- ---------------------------------------------------- ------------------- ----------------------- ----------------
2 Processor LGC Cabinet                              XPM                 U2XPMCAB                              1
- ---------------------------------------------------- ------------------- ----------------------- ----------------
2 Processor XPM module.                              PLGC                XPM 2P                                2
- ---------------------------------------------------- ------------------- ----------------------- ----------------
XPM Fibre Interface                                  PLGC                XPM IF FIBRE                          2
- ---------------------------------------------------- ------------------- ----------------------- ----------------
PCM 30 CP                                            PLGC                PCM30X2                              12
- ---------------------------------------------------- ------------------- ----------------------- ----------------
PCM 30 Signalling CP                                 PLGC                PCMSIG                                4
- ---------------------------------------------------- ------------------- ----------------------- ----------------
Universal Tone Receivers                             PLGC                UTR                                   4
- ---------------------------------------------------- ------------------- ----------------------- ----------------
Cabinetised   Remote   Switching   Centre   (SDH  -  CRSC EQUIPT         CRSC BASE                             2
International)
- ---------------------------------------------------- ------------------- ----------------------- ----------------
2 x 2Mbit/S Packlet for CRSC or CEXT                 CRSC EQUIPT         CRSC PCM30                            8
- ---------------------------------------------------- ------------------- ----------------------- ----------------
Power Distribution Centre                            CRSC EQUIPT         PDC                                   2
- ---------------------------------------------------- ------------------- ----------------------- ----------------
Line Concentrating Equipment Cabinet                 CRSC EQUIPT         LCE                                   4
- ---------------------------------------------------- ------------------- ----------------------- ----------------
Line Concentrator Module.                            CRSC EQUIPT         LCM                                   8
- ---------------------------------------------------- ------------------- ----------------------- ----------------
Line Drawer (Non ISDN)                               CRSC EQUIPT         LD                                   80
- ---------------------------------------------------- ------------------- ----------------------- ----------------
World Line Card Type A                               CRSC EQUIPT         LCWORLDA                          5,000
- ---------------------------------------------------- ------------------- ----------------------- ----------------



                                       54
<PAGE>
- ---------------------------------------------------- ------------------- ----------------------- ----------------
HOST NAME                                            RLCM (600 LINES)
- ---------------------------------------------------- ------------------- ----------------------- ----------------


- ---------------------------------------------------- ------------------- ----------------------- ----------------


- ---------------------------------------------------- ------------------- ----------------------- ----------------


- ---------------------------------------------------- ------------------- ----------------------- ----------------

                    Description                          Subsystem               Module             Quantity
- ---------------------------------------------------- ------------------- ----------------------- ----------------
6002A Main Distribution Frame - no connectors.       OEM                 OEM MDF FRAME                         1
- ---------------------------------------------------- ------------------- ----------------------- ----------------
Krone 237A Connection Strip.                         OEM                 OEM MDF STRIP                       123
- ---------------------------------------------------- ------------------- ----------------------- ----------------
Coax cable for XPM's                                 OEM                 OEM XPM CABLE                         1
- ---------------------------------------------------- ------------------- ----------------------- ----------------
3 Procesor XPM - P3LGC or P3DTC                      PLGC                XPM 3P                                1
- ---------------------------------------------------- ------------------- ----------------------- ----------------
XPM Fibre Interface                                  PLGC                XPM IF FIBRE                          1
- ---------------------------------------------------- ------------------- ----------------------- ----------------
PCM 30 CP                                            PLGC                PCM30X2                               2
- ---------------------------------------------------- ------------------- ----------------------- ----------------
PCM 30 Signalling CP                                 PLGC                PCMSIG                                2
- ---------------------------------------------------- ------------------- ----------------------- ----------------
Universal Tone Receivers                             PLGC                UTR                                   2
- ---------------------------------------------------- ------------------- ----------------------- ----------------
Remote Line Concentrator Unit                        RLC EQUIPT          RLCM                                  1
- ---------------------------------------------------- ------------------- ----------------------- ----------------
PCM30 Line Drawer                                    RLC EQUIPT          PLD                                  10
- ---------------------------------------------------- ------------------- ----------------------- ----------------


- ---------------------------------------------------- ------------------- ----------------------- ----------------
HOST NAME                                            SRU (240 LINES)
- ---------------------------------------------------- ------------------- ----------------------- ----------------

- ---------------------------------------------------- ------------------- ----------------------- ----------------

- ---------------------------------------------------- ------------------- ----------------------- ----------------

- ---------------------------------------------------- ------------------- ----------------------- ----------------

- ---------------------------------------------------- ------------------- ----------------------- ----------------

                    Description                          Subsystem               Module             Quantity
- ---------------------------------------------------- ------------------- ----------------------- ----------------
Krone 237A Connection Strip.                         OEM                 OEM MDF STRIP                        25
- ---------------------------------------------------- ------------------- ----------------------- ----------------
Base OEM Equipment per SRU                           OEM                 OEM SRU BASE                          1
- ---------------------------------------------------- ------------------- ----------------------- ----------------
Coax cable for XPM's                                 OEM                 OEM XPM CABLE                         1
- ---------------------------------------------------- ------------------- ----------------------- ----------------
2 Processor LGC Cabinet                              XPM                 U2XPMCAB                              1
- ---------------------------------------------------- ------------------- ----------------------- ----------------
2 Processor XPM module.                              PLGC                XPM 2P                                1
- ---------------------------------------------------- ------------------- ----------------------- ----------------
XPM Fibre Interface                                  PLGC                XPM IF FIBRE                          1
- ---------------------------------------------------- ------------------- ----------------------- ----------------
PCM 30 CP                                            PLGC                PCM30X2                               1
- ---------------------------------------------------- ------------------- ----------------------- ----------------
PCM 30 Signalling CP                                 PLGC                PCMSIG                                2
- ---------------------------------------------------- ------------------- ----------------------- ----------------
Universal Tone Receivers                             PLGC                UTR                                   2
- ---------------------------------------------------- ------------------- ----------------------- ----------------
Small Remote Unit 240 Line unit                      SRU                 SRU BASE                              1
- ---------------------------------------------------- ------------------- ----------------------- ----------------
Power for Small Remote Unit 240 Line                 SRU                 SRU POWER                             1
- ---------------------------------------------------- ------------------- ----------------------- ----------------
BIC & PUPS for SRU Line Drawers                      SRU                 SRU BIC                               3
- ---------------------------------------------------- ------------------- ----------------------- ----------------
World Line Card Type A                               SRU                 LCWORLDA                            240
- ---------------------------------------------------- ------------------- ----------------------- ----------------

</TABLE>


                                       55
<PAGE>


[CONFIDENTIAL PORTION OMITTED]


                                       56
<PAGE>
CII-2    TECHNICAL SUPPORT SERVICES TABLE


<TABLE>
<CAPTION>
- -----------------------------------------------------------------------------------------------------
PER HOUR                                              PRICE             PRICE            PRICE
                                                  STANDARD TIME    TIME AND A HALF    DOUBLE TIME
- -----------------------------------------------------------------------------------------------------
<S>                                              <C>               <C>               <C>
TECHNICAL ASSISTANCE SUPPORT (TAS)
- -------------------------------------------------
FIELD IMPLEMENTATION
- -------------------------------------------------
INSTALLATION
- -------------------------------------------------
ENGINEERING                                               [CONFIDENTIAL PORTION OMITTED]
- -------------------------------------------------
1ST LINE MAINTENANCE
- -------------------------------------------------
VERIFICATION OFFICE
- -------------------------------------------------
PROJECT MANAGEMENT (ALL OTHER CUSTOMERS)
- -----------------------------------------------------------------------------------------------------
</TABLE>


STANDARD TIME: 9.00 - 17.30 Monday to Friday

TIME & A HALF: 17.31-8.59 Monday to Friday and all day Saturday - price
calculated at standard time plus 50%

DOUBLE TIME : Sundays and Statutory Holidays - price calculated at standard time
plus 100%.

TRAINING

   PRICES

   [CONFIDENTIAL PORTION OMITTED] per student per day

   [CONFIDENTIAL PORTION OMITTED] per student per day (if > than 6 students from
   the same company booked on the same course)

   [CONFIDENTIAL PORTION OMITTED] per instructor day (up to a maximum of 6 
   students)

   [CONFIDENTIAL PORTION OMITTED] per extra student per day (up to 12 students)

DOCUMENTATION

   PAPER NTPS FOR NEW SWITCHES, PRICE

   DMS-100                 [CONFIDENTIAL PORTION OMITTED]

   DMS-100/250             [CONFIDENTIAL PORTION OMITTED]

   DMS-300                 [CONFIDENTIAL PORTION OMITTED]


   PAPER NTPS FOR BCS UPDATES, PRICE

   DMS-100                 [CONFIDENTIAL PORTION OMITTED]

   DMS-100/250             [CONFIDENTIAL PORTION OMITTED]

   DMS-300                 [CONFIDENTIAL PORTION OMITTED]


                                       57
<PAGE>
   BCS UPGRADE                      [CONFIDENTIAL PORTION OMITTED]

CII-3    REPAIR & RETURN TABLE



- --------------------------------------------------------------------------------
                                      STANDARD PRICE       EMERGENCY PRICE (24
                                         (30 DAY)                HOURS)
- --------------------------------------------------------------------------------
DIGITAL CIRCUIT PACKS
- --------------------------------------
SUPERNODE CIRCUIT PACK
- --------------------------------------
MAGNETIC TAPE DRIVE (MTD)
- --------------------------------------
DISC DRIVE UNIT (DDU)                        [CONFIDENTIAL PORTION OMITTED]
- --------------------------------------
LINE CARDS
- --------------------------------------
CONSOLES
- --------------------------------------
BUSINESS SETS
- --------------------------------------
DELIVERY PRICES
- --------------------------------------------------------------------------------


[CONFIDENTIAL PORTION OMITTED] per mile in excess of [CONFIDENTIAL PORTION
OMITTED] miles (based on the distance between Maidenhead and the delivery
address).


                                       58
<PAGE>
EXHIBIT C         APPENDIX III

DATED 1 MARCH 1993

BETWEEN TELEWEST GROUP AND NORTHERN TELECOM

CIII-1   PRICE LIST TABLE

UNIT PRICE IN POUNDS STERLING ((POUND)) LIST FOR DISCOUNTABLE ITEMS.


<TABLE>

- -------------------------------------------------------------------------------------------------------
<S>                          <C>                                               <C>
                             FSP FRAME FAIL LAMP
                             ---------------------------------------------
                             LAMP
                             ---------------------------------------------
                             FSP FRAME FUSE 1.3AMP
                             ---------------------------------------------
                             FSP FRAME FUSE 3AMP
                             ---------------------------------------------
                             FSP FRAME FUSE 5AMP
                             ---------------------------------------------
                             FUSE HOLDER
                             ---------------------------------------------
                             FAN
                             ---------------------------------------------
                             SPARE DC FAN UNIT
                             ---------------------------------------------
                             48V DC FAN
                             ---------------------------------------------
                             CORE COOLING UNIT
                             ---------------------------------------------
                             HANDEST CORD
                             ---------------------------------------------
       [CONFIDENTIAL         AIR FILTER                                          [CONFIDENTIAL
                             ---------------------------------------------
                             BLOWER 48V DC
                             ---------------------------------------------
                             AIR FILTER
                             ---------------------------------------------
          PORTION            AIR FILTER                                             PORTION
                             ---------------------------------------------
                             AIR FILTER
                             ---------------------------------------------
                             JUMPER LINE CORD
                             ---------------------------------------------
          OMITTED]           AIR FILTER                                             OMITTED]
                             ---------------------------------------------
                             SRU BATTERY
                             ---------------------------------------------
                             AIR FILTER
                             ---------------------------------------------
                             AIR FILTER
                             ---------------------------------------------
                             RED WARNING LED INDICATORS
                             ---------------------------------------------
                             BUTTON CAP PKG
                             ---------------------------------------------
                             M5312 LITERATURE
                             ---------------------------------------------
                             M518/M536 BUTTON
                             ---------------------------------------------
                             BUTTON CAP PKG
                             ---------------------------------------------
                             GREEN WARNING LED INDICATORS
                             ---------------------------------------------
                             LAMP
                             ---------------------------------------------
                             COOK MTD SPARE LAMPS
                             ---------------------------------------------
                             TELE-HANDSET
                             ---------------------------------------------
                             SLC PATCH CORD 6' 6"
                             ---------------------------------------------
                             NJC PATCH CORD 6' 6"
                             ---------------------------------------------
                             CABLE ATTENDANT CONSOLE 30 M
                             ---------------------------------------------
                             CABLE ASSY
- -------------------------------------------------------------------------------------------------------

                                       59
<PAGE>
- -------------------------------------------------------------------------------------------------------
                             CABLE ASSY
                             ---------------------------------------------
                             CABLE ASSY
                             ---------------------------------------------
                             ISOLATION MOUNTING H/W
                             ---------------------------------------------
                             LOGIC RETURN BUSBAR ASSEM
                             ---------------------------------------------
                             CABLE TERMINATION PRODUCT
                             ---------------------------------------------
                             CABLE TERMINATION PRODUCT
                             ---------------------------------------------
                             F.G.E. REMOTES
                             ---------------------------------------------
                             ISG LABEL FOR PDC FSP
                             ---------------------------------------------
                             ISG FOR DMS-100 REMOTES
                             ---------------------------------------------
                             SPLICE PLATE ASSEMBLIES
                             ---------------------------------------------
                             END COVER SUPPORT
                             ---------------------------------------------
                             AC MOUNTING PLATE
                             ---------------------------------------------
                             END GUARD INS ISOLATE GRD
                             ---------------------------------------------
                             END GUARD INS ISOLATE GRD
                             ---------------------------------------------
                             END GUARD INS ISOLATE GRD
                             ---------------------------------------------
                             END GUARD INS ISOLATE GRD
                             ---------------------------------------------
                             APPLCE OUTLET ISOLATE GRD
                             ---------------------------------------------
       [CONFIDENTIAL         AC FOR 1ST FR 2 SW 240V 50                          [CONFIDENTIAL
                             ---------------------------------------------
                             AC FOR LST FR 2 SW 240V 50
                             ---------------------------------------------
                             MISC SCANNER
                             ---------------------------------------------
          PORTION            DIG NET JCTR CNTG PNL NETC                             PORTION
                             ---------------------------------------------
                             DIG NET JCTR CNTG PNL
                             ---------------------------------------------
                             FRAME DOOR
                             ---------------------------------------------
          OMITTED]           FRAME LEVELLING (FEET)                                 OMITTED]
                             ---------------------------------------------
                             FRAME ISOLATION
                             ---------------------------------------------
                             FRAME DOOR INSTALLATION
                             ---------------------------------------------
                             END GUARD INSTALLATION
                             ---------------------------------------------
                             M10 ANCHOR ASSEMBLY
                             ---------------------------------------------
                             M12 ANCHOR ASSEMBLY
                             ---------------------------------------------
                             EARTHQUAKE FRAME JCTR
                             ---------------------------------------------
                             KICK PLATE ASSY
                             ---------------------------------------------
                             END PANEL
                             ---------------------------------------------
                             END PANEL
                             ---------------------------------------------
                             PLATE SHELF ASSY
                             ---------------------------------------------
                             REAR UPPER ACCESS PANEL
                             ---------------------------------------------
                             CABINET LEVELING MAT.
                             ---------------------------------------------
                             SUPERNODE CABLE TROUGH ASS
                             ---------------------------------------------
                             CABLE TROUGH JUNCTON
                             ---------------------------------------------
                             CABLE TROUGH END H/W
                             ---------------------------------------------
                             X-AISLE DUCT 2 SHIELDS
                             ---------------------------------------------
                             CABINET JUNCTION MAT
                             ---------------------------------------------
                             AISLE LAMP KIT
                             ---------------------------------------------
                             S/NODE SPARE STORAGE SHELF
- -------------------------------------------------------------------------------------------------------

                                       60
<PAGE>
- -------------------------------------------------------------------------------------------------------
                             A/C BLANK COVER ASSY
                             ---------------------------------------------
                             FRAME FAIL LIGHT
                             ---------------------------------------------
                             ECORE/DMS RT SIDE JUNCT KIT
                             ---------------------------------------------
                             ECORE/DMS L SIDE JUNCT KIT
                             ---------------------------------------------
                             LOWER GRILL ASSY
                             ---------------------------------------------
                             POWER ACCESS PANEL ASSY
                             ---------------------------------------------
                             DOOR KIT
                             ---------------------------------------------
                             END PANEL ASSY RIGHT END
                             ---------------------------------------------
                             END PANEL ASSY LEFT END
                             ---------------------------------------------
                             AISLE LAMP KIT
                             ---------------------------------------------
                             FRAME FAIL LIGHT KIT
                             ---------------------------------------------
                             BLANK COVER ASSY
                             ---------------------------------------------
                             REAR KICKPLATE ASSY
                             ---------------------------------------------
                             KICK PLATE ASSY (GREY)
                             ---------------------------------------------
                             COMMON FRAMEWORK
                             ---------------------------------------------
                             EMI EARTHQUAKE FRMWK ASSY
                             ---------------------------------------------
       [CONFIDENTIAL         CABLE                                               [CONFIDENTIAL
                             ---------------------------------------------
                             CABLE
                             ---------------------------------------------
                             CABLE TO DF
                             ---------------------------------------------
          PORTION            CABLE                                                  PORTION
                             ---------------------------------------------
                             CABLE
                             ---------------------------------------------
                             CABLE
                             ---------------------------------------------
          OMITTED]           CABLE                                                  OMITTED]
                             ---------------------------------------------
                             CABLE
                             ---------------------------------------------
                             CABLE
                             ---------------------------------------------
                             CABLE
                             ---------------------------------------------
                             CABLE
                             ---------------------------------------------
                             EIA DEV.-STAND ALONE MODEM
                             ---------------------------------------------
                             VDU - IOC, VT100 CL
                             ---------------------------------------------
                             CONNECTORIZED PTL10P26 CA
                             ---------------------------------------------
                             RIXON - IOC, S/A
                             ---------------------------------------------
                             DDU - IOC
                             ---------------------------------------------
                             DDU - IOC
                             ---------------------------------------------
                             CONTROLLER - SLC CABLE
                             ---------------------------------------------
                             CO CA 26GA E/W 1-32&3-8PIN
                             ---------------------------------------------
                             LSG-DF CABLE
                             ---------------------------------------------
                             TOPS04 DF CABLE
                             ---------------------------------------------
                             MCGM00 IOC - MOD  1/MODEM
                             ---------------------------------------------
                             CA NE-807A E/W 1-40P CONN
                             ---------------------------------------------
                             CABLE
                             ---------------------------------------------
                             CABLE
                             ---------------------------------------------
                             CABLE
                             ---------------------------------------------
                             CA PTL 25P E/W 2-40P CONNS
- -------------------------------------------------------------------------------------------------------


                                       61
<PAGE>
- -------------------------------------------------------------------------------------------------------
                             CABLE
                             ---------------------------------------------
                             CABLE ASSEMBLY
                             ---------------------------------------------
                             CABLE
                             ---------------------------------------------
                             CABLE ASSEMBLY
                             ---------------------------------------------
                             CABLE
                             ---------------------------------------------
                             CABLE ASSEMBLY
                             ---------------------------------------------
                             CA 811A E/W TWO 8PIN CONN
                             ---------------------------------------------
                             CA 18P E/W 1-32&25PIN CONN
                             ---------------------------------------------
                             CABLE
                             ---------------------------------------------
                             CA 18P 26E/W 2-32&1-37P CO
                             ---------------------------------------------
                             CABLE
                             ---------------------------------------------
                             CABLE
                             ---------------------------------------------
                             GE 2120 PRINTER CA
                             ---------------------------------------------
                             CABLE
                             ---------------------------------------------
                             CABLE
                             ---------------------------------------------
                             CABLE
                             ---------------------------------------------
       [CONFIDENTIAL         CABLE                                               [CONFIDENTIAL
                             ---------------------------------------------
                             CABLE
                             ---------------------------------------------
                             CABLE
                             ---------------------------------------------
          PORTION            CONN CABLE                                             PORTION
                             ---------------------------------------------
                             TOPS POWER CABLE
                             ---------------------------------------------
                             CABLE MS TO ROS
                             ---------------------------------------------
          OMITTED]           CONN. CABLE ASSY                                       OMITTED]
                             ---------------------------------------------
                             CONN. CABLE ASSY
                             ---------------------------------------------
                             CONN. CABLE ASSY
                             ---------------------------------------------
                             CONN. CABLE ASSY
                             ---------------------------------------------
                             FSP BULKHEAD TO FSP BULK
                             ---------------------------------------------
                             PTL 5PR. 26AWG CABLE E/W 1
                             ---------------------------------------------
                             CABLE
                             ---------------------------------------------
                             CABLE
                             ---------------------------------------------
                             CA PTL 5P26 E/W 1-9PIN CO
                             ---------------------------------------------
                             VDU CABLE
                             ---------------------------------------------
                             CA 10P26 E/W 2-25PIN CONNS
                             ---------------------------------------------
                             CA 18P26 SH E/W 2-34PIN CO
                             ---------------------------------------------
                             CA 18P26 SH E/W 2-34PIN CO
                             ---------------------------------------------
                             CA PTL 5P26 E/W 1-10PIN CO
                             ---------------------------------------------
                             CA PTL 5P26 E/W 1-10PIN CO
                             ---------------------------------------------
                             INV - CU (2 PER CU)
                             ---------------------------------------------
                             PROTECTED AC
                             ---------------------------------------------
                             PROT. AC , INV-MAP
                             ---------------------------------------------
                             FSP
                             ---------------------------------------------
                             CABLE TROUGH-OTHER FRAMES
                             ---------------------------------------------
                             CABLE TROUGH-SLC,DNI
- -------------------------------------------------------------------------------------------------------

                                       62
<PAGE>
- -------------------------------------------------------------------------------------------------------
                             CABLE TROUGH ASSY - PDC
                             ---------------------------------------------
                             CABLE TROUGH ASSY - PDC
                             ---------------------------------------------
                             EMI EXT ASSY 8'
                             ---------------------------------------------
                             FLTR CAP FOR EMI
                             ---------------------------------------------
                             POWER CONTROL AND ALARM CP
                             ---------------------------------------------
                             CABLE ASSEMBLY
                             ---------------------------------------------
                             CABLE ASSEMBLY
                             ---------------------------------------------
                             CABLE ASSEMBLY
                             ---------------------------------------------
                             DISTRIBUTING FUSE PANEL A
                             ---------------------------------------------
                             DISTRIBUTING FUSE PANEL B
                             ---------------------------------------------
                             PDC FILLER PANEL ASSY
                             ---------------------------------------------
                             GND PANEL TOP FEED
                             ---------------------------------------------
                             GND PANEL BOTTOM FEED
                             ---------------------------------------------
                             FILTER PANEL
                             ---------------------------------------------
                             FUSE 10 AMP
                             ---------------------------------------------
                             FUSE 20 AMP
                             ---------------------------------------------
                             FUSE 5 AMP
                             ---------------------------------------------
       [CONFIDENTIAL         15A DIST FUSING KIT                                 [CONFIDENTIAL
                             ---------------------------------------------
                             30AMP DIST FUSE KIT
                             ---------------------------------------------
                             FUSE DISTN PANEL
                             ---------------------------------------------
          PORTION            FUSE DISTN PANEL                                       PORTION
                             ---------------------------------------------
                             GROUND PANEL (TOP) UL
                             ---------------------------------------------
                             GND PANEL BOTTOM FEED
                             ---------------------------------------------
          OMITTED]           PC KIT                                                 OMITTED]
                             ---------------------------------------------
                             POWER CABLE ASSEMBLY
                             ---------------------------------------------
                             POWER CABLE ASSEMBLY
                             ---------------------------------------------
                             MOUNTING HDWRE FOR MTD
                             ---------------------------------------------
                             MTD MTG ASSY
                             ---------------------------------------------
                             INT MAG TAPE DRIVE UNIT
                             ---------------------------------------------
                             POWER CABLE
                             ---------------------------------------------
                             LOCAL CABLE,FSP-(32)
                             ---------------------------------------------
                             LOCAL CABLE,FSP-(18)
                             ---------------------------------------------
                             LOCAL CABLE,FSP-(04)
                             ---------------------------------------------
                             LOCAL CABLE,FSP-(18)
                             ---------------------------------------------
                             POWER CABLE
                             ---------------------------------------------
                             INTERCO CA (MTM TO FSP)
                             ---------------------------------------------
                             CABLE & PLUG ASSEMBLY
                             ---------------------------------------------
                             FILLER FACE PLATE
                             ---------------------------------------------
                             FILLER FACE PLATE
                             ---------------------------------------------
                             FILLER FACE PLATE
                             ---------------------------------------------
                             FILLER FACE PLATE
                             ---------------------------------------------
                             FILLER FACE PLATE
                             ---------------------------------------------
                             FILLER FACE PLATE
- -------------------------------------------------------------------------------------------------------

                                       63
<PAGE>
- -------------------------------------------------------------------------------------------------------
                             FILLER FACE PLATE
                             ---------------------------------------------
                             FILLER FACE PLATE
                             ---------------------------------------------
                             FUSE ALARM CP
                             ---------------------------------------------
                             NETWORK SLC PANEL
                             ---------------------------------------------
                             PERIPHERAL SLC PANEL
                             ---------------------------------------------
                             MAP CTR SECT WITH JACKS
                             ---------------------------------------------
                             MAP COUNTER SECTION
                             ---------------------------------------------
                             MAP SHELF SECTION
                             ---------------------------------------------
                             TEST TRUNK JACK BOX ASSY
                             ---------------------------------------------
                             EMI LABELS
                             ---------------------------------------------
                             TRUNK TEST CENTRE AUDIBLE
                             ---------------------------------------------
                             ALARM CONTROL AND DISPLAY
                             ---------------------------------------------
                             ALARM DISPLAY PANEL
                             ---------------------------------------------
                             ACDP PANEL
                             ---------------------------------------------
                             EXIT ALARM DISPLAY PANEL
                             ---------------------------------------------
                             ALARM AUDIBLE PANEL
                             ---------------------------------------------
       [CONFIDENTIAL         IN/OP CONTROL TERM CP                               [CONFIDENTIAL
                             ---------------------------------------------
                             TRUNK MODULE PROCESSOR CP
                             ---------------------------------------------
                             T.M. PROCESSOR
                             ---------------------------------------------
          PORTION            INTERNATIONAL TRK MOD CP                               PORTION
                             ---------------------------------------------
                             FRAME DOORS
                             ---------------------------------------------
                             FRAME DOORS (MISC)
                             ---------------------------------------------
          OMITTED]           FRAME DOORS REAR (1 PAIR)                              OMITTED]
                             ---------------------------------------------
                             FRAME DOORS FRONT (1 PAIR)
                             ---------------------------------------------
                             TRIM PANELS
                             ---------------------------------------------
                             FRAME TRIM PANELS
                             ---------------------------------------------
                             END GUARD ASSY ISOLATE GRD
                             ---------------------------------------------
                             END GUARD ASSY ISOLATE GRD
                             ---------------------------------------------
                             X-AISLE DUCT 3SHLD-31.90IN
                             ---------------------------------------------
                             CAGE FILLER PANEL ASSEMBLY
                             ---------------------------------------------
                             MAINTENANCE SPARE STORAGE
                             ---------------------------------------------
                             RSE/MIS FRAME SUPY PANEL
                             ---------------------------------------------
                             MIS FR SUPV PANEL
                             ---------------------------------------------
                             DATA LINK CONTROL
                             ---------------------------------------------
                             ALARM & CONVERTER DRIVE
                             ---------------------------------------------
                             CONVERTER DRIVE CKT
                             ---------------------------------------------
                             CONV DRIVE & PROTECTION C
                             ---------------------------------------------
                             ALARM DR & PROTECT CKT NET
                             ---------------------------------------------
                             48V FAN INVERTER
                             ---------------------------------------------
                             CABLE BRAID ASSY 7.00IN.
                             ---------------------------------------------
                             BUS BAR ASSEMBLY
                             ---------------------------------------------
                             GROUND BAR ASSEMBLY
                             ---------------------------------------------
                             CABLE BRAID ASSEMBLY
- -------------------------------------------------------------------------------------------------------

                                       64
<PAGE>
- -------------------------------------------------------------------------------------------------------
                             POWER CABLE
                             ---------------------------------------------
                             POWER CABLE
                             ---------------------------------------------
                             POWER CABLE
                             ---------------------------------------------
                             POWER CABLE
                             ---------------------------------------------
                             POWER CABLE, FSP-MTM(65)
                             ---------------------------------------------
                             PWR CABLE-TAE,TAN(18) TEST
                             ---------------------------------------------
                             PWR CABLE-TAE,TAN(51) TEST
                             ---------------------------------------------
                             POWER CABLE IOE,DDU (18)
                             ---------------------------------------------
                             POWER CABLE ASSY 33.5 IN.
                             ---------------------------------------------
                             POWER CABLE ASSY 26.0 IN.
                             ---------------------------------------------
                             POWER CABLE IOE,DDU (04)
                             ---------------------------------------------
                             POWER CABLE IOE,DDU (04)
                             ---------------------------------------------
                             POWER CABLE ASSEMBLY
                             ---------------------------------------------
                             CA 5P26 E/W ONE 10P CO
                             ---------------------------------------------
                             CA SHLD 2P 22 E/W 1-9P CO
                             ---------------------------------------------
                             V35 CABLE ( 34 PIN TO 34 PIN) 25M
                             ---------------------------------------------
                             V35 CABLE ( 34 PIN TO 25 PIN) 25M
                             ---------------------------------------------
       [CONFIDENTIAL         RS232 CABLE ( 34 PIN TO 25 PIN) 25M                 [CONFIDENTIAL
                             ---------------------------------------------
                             102 TEST (MILLIWATT)
                             ---------------------------------------------
                             RECEIVER OFF HOOK TONE
                             ---------------------------------------------
          PORTION            INTERNATIONAL TEST TRUNK                               PORTION
                             ---------------------------------------------
                             102 TEST MILLIWATT - 10DBM
                             ---------------------------------------------
                             CMC PROCESSOR INTERFACE CP
                             ---------------------------------------------
          OMITTED]           CMC OUTGOING CONTROLLER CP                             OMITTED]
                             ---------------------------------------------
                             CMC INCOMING CONTROLLER CP
                             ---------------------------------------------
                             CMC PERIPH I/F CP
                             ---------------------------------------------
                             CMC COMMON CONTROL CP
                             ---------------------------------------------
                             PROC. 8MW PROG STORE PORT
                             ---------------------------------------------
                             PROCESSOR STACK (4KW) CP
                             ---------------------------------------------
                             PROCESSOR A.L.F. CP
                             ---------------------------------------------
                             PROCESSOR 8KW ROM CP
                             ---------------------------------------------
                             PROC. TIMING AND CONTR CP
                             ---------------------------------------------
                             PROCESSOR MAINTENANCE CP
                             ---------------------------------------------
                             UNBALANCED DATA PORT EXT
                             ---------------------------------------------
                             BAL DATA PORT EXT
                             ---------------------------------------------
                             CMC INTERFACE(40 MHZ) CP
                             ---------------------------------------------
                             JACK ENDED TRUNK
                             ---------------------------------------------
                             DISK DRIVE CONTROLLER
                             ---------------------------------------------
                             DDU CONTROLLER
                             ---------------------------------------------
                             I/0 MSG CONTROLLER CP
                             ---------------------------------------------
                             I/O MSG CONTROLLER CP
                             ---------------------------------------------
                             TERMINAL CONTROLLER CARD
                             ---------------------------------------------
                             I/O TERMINAL CONTROLLER
- -------------------------------------------------------------------------------------------------------

                                       65
<PAGE>
- -------------------------------------------------------------------------------------------------------
                             NINE TRACK TAPE CTRL(COOK)
                             ---------------------------------------------
                             NINE TRACK TAPE CTRL(COOK)
                             ---------------------------------------------
                             A-LAW DIG REC ANN CONT
                             ---------------------------------------------
                             DRA RECORDABLE MEMORY
                             ---------------------------------------------
                             POWER CONV +/-5V 12 24V
                             ---------------------------------------------
                             MCCS CUSTOM ANN CP
                             ---------------------------------------------
                             MULTIPROTOCOL CONTROL CP
                             ---------------------------------------------
                             ENHANCED EMPC (X.25)
                             ---------------------------------------------
                             A-LAW TEST SIGNAL GEN CP
                             ---------------------------------------------
                             TM CODEC CKT PACK
                             ---------------------------------------------
                             OV/4UA PWK LVNV
                             ---------------------------------------------
                             5V/40A POWER CONV CP
                             ---------------------------------------------
                             MULTI O/P PWR CONVERTER
                             ---------------------------------------------
                             MULTI OP UWR CONV. EMI. SH
                             ---------------------------------------------
                             TM NETWORK INTERFACE A-LAW
                             ---------------------------------------------
                             A-LAW TRMSN TEST UN CONT
                             ---------------------------------------------
       [CONFIDENTIAL         4 CHAN DGTL MF RCVR A-LAW                           [CONFIDENTIAL
                             ---------------------------------------------
                             4 CHAN DGTL MF RCVR
                             ---------------------------------------------
                             A-LAW DTMF RECEIVER FOR UK
                             ---------------------------------------------
          PORTION            TM/CONTROL CP                                          PORTION
                             ---------------------------------------------
                             A-LAW TTU DIGITAL FILTER
                             ---------------------------------------------
                             SD CARD I
                             ---------------------------------------------
          OMITTED]           A-LAW GRP CODEC & TONES CP                             OMITTED]
                             ---------------------------------------------
                             A-LAW GRP CODEC & TONES CP
                             ---------------------------------------------
                             GROUP CRDEC CP
                             ---------------------------------------------
                             GROUP CODEC BRITISH TELECOM PLC 250 CP
                             ---------------------------------------------
                             PWR CONV +/-5V,12V 50A CP
                             ---------------------------------------------
                             PC KIT FOR NT2X70AE
                             ---------------------------------------------
                             CONV.,0+/- 5V,+/- 12V
                             ---------------------------------------------
                             TRANSMISSION TERM TRK
                             ---------------------------------------------
                             4W TRK 600 OHM DC5A
                             ---------------------------------------------
                             LOOP AROUND TEST LINE
                             ---------------------------------------------
                             LP ARROUND TST LN A-LAW CP
                             ---------------------------------------------
                             COM. BAL. NTWK 900 OHM
                             ---------------------------------------------
                             COM. BAL. NTWK 600 OHM
                             ---------------------------------------------
                             COM. BAL. NTWK 900 OHM FIX
                             ---------------------------------------------
                             COMPROMISE BALANCE NETWORK
                             ---------------------------------------------
                             COMPROMISE BALANCE NETWORK
                             ---------------------------------------------
                             INC/OGT TEST TRUNK
                             ---------------------------------------------
                             INC/OGT TEST TRUNK CP
                             ---------------------------------------------
                             A-LAW PCM LEVEL METER CP
                             ---------------------------------------------
                             TOPS CONTROL PROCESSOR
                             ---------------------------------------------
                             TOPS DIG. SIG. PROCESSOR
- -------------------------------------------------------------------------------------------------------

                                       66
<PAGE>
- ------------------------------------------------------------------------------------------------------
                             8 X 8 MATRIX
                             ---------------------------------------------
                             MASTER CLOCK GEN
                             ---------------------------------------------
                             SYNCH MASTER CLK CNTRL CP
                             ---------------------------------------------
                             SYNCH CLK MASTER OSCIL CP
                             ---------------------------------------------
                             DIFF. MEM BUS I/F &TERM
                             ---------------------------------------------
                             CONF CKT E/W TBI TONE CP
                             ---------------------------------------------
                             TONE GEN - PRMT PST CONF
                             ---------------------------------------------
                             TONE GEN - CALL WAITING
                             ---------------------------------------------
                             TONE GENERATOR
                             ---------------------------------------------
                             TONE GEN - CALL WAITING
                             ---------------------------------------------
                             NTWK CONTROL PROC CP E-COR
                             ---------------------------------------------
                             NET P-SIDE MSG PROCESSOR
                             ---------------------------------------------
                             NETWORK CLOCK CP
                             ---------------------------------------------
                             OAU DEAD SYS W UNIQUE AUD
                             ---------------------------------------------
                             OAU DEAD SYS W/COM AUD
                             ---------------------------------------------
                             OAU ALARM TRANSFER
                             ---------------------------------------------
       [CONFIDENTIAL         ALARM X-CONNECT UNIT                                [CONFIDENTIAL
                             ---------------------------------------------
                             COOLING INVERTER UNIT
                             ---------------------------------------------
                             DC FAN COOLING UNIT
                             ---------------------------------------------
          PORTION            MISC H/W FOR DDU                                       PORTION
                             ---------------------------------------------
                             DDU SHELF ASSY
                             ---------------------------------------------
                             16MW MEMORY CONTROL CP
                             ---------------------------------------------
          OMITTED]           1MW MOS MEMORY CP                                      OMITTED]
                             ---------------------------------------------
                             MTU CONTROLLER
                             ---------------------------------------------
                             MTU ANALOGUE
                             ---------------------------------------------
                             MTU
                             ---------------------------------------------
                             RECTIFIER
                             ---------------------------------------------
                             CCITT#5 TRK FOR TAN
                             ---------------------------------------------
                             CCITT NO.5 TRUNK CP
                             ---------------------------------------------
                             AUDIO TONE DETECT (UK) CP
                             ---------------------------------------------
                             COMMUNICATION TRUNK
                             ---------------------------------------------
                             COMMUNICATION TRUNK
                             ---------------------------------------------
                             CP EXTENDER ASSEMBLY
                             ---------------------------------------------
                             LINE DRAWER
                             ---------------------------------------------
                             LINE DRAWER FILLER
                             ---------------------------------------------
                             LINE DRAWER
                             ---------------------------------------------
                             PCM 30 LINE DRAWER INC BIC
                             ---------------------------------------------
                             RSC TERMINAL BOARD
                             ---------------------------------------------
                             ALARM BATTERY SUPPLY WRG
                             ---------------------------------------------
                             TYPE C LINE CARD
                             ---------------------------------------------
                             CABLE ASSY
                             ---------------------------------------------
                             RLCM FSP WITH POWER DIST
                             ---------------------------------------------
                             PCM 30 INTERFACE CP
- -------------------------------------------------------------------------------------------------------

                                       67
<PAGE>
- -------------------------------------------------------------------------------------------------------
                             PCM 30 INTERFACE CP
                             ---------------------------------------------
                             ENHANCED PCM30 INTERFACE CARD
                             ---------------------------------------------
                             PCM 30 X 2 LINE CARD 4 SLOT
                             ---------------------------------------------
                             PCM 30 SIGNALLING CP
                             ---------------------------------------------
                             PCM 30 SIGNALLING CP
                             ---------------------------------------------
                             RINGING GENERATOR CP
                             ---------------------------------------------
                             LCE FRAME SUPV PANEL
                             ---------------------------------------------
                             FSP ALARM CP
                             ---------------------------------------------
                             FSP ALARM CP
                             ---------------------------------------------
                             ALARM CP (SRU)
                             ---------------------------------------------
                             DS30 NETWORK INTERFACE CP
                             ---------------------------------------------
                             DS30 NETWORK INTERFACE CP
                             ---------------------------------------------
                             SPEECH BUS FORMATTER CP
                             ---------------------------------------------
                             SPEECH BUS FORMAT (TURKEY)
                             ---------------------------------------------
                             CHANNEL SUPERVISION MGS CP
                             ---------------------------------------------
                             MSG INTERFACE CP
                             ---------------------------------------------
                             MSG INTERFACE CP
                             ---------------------------------------------
       [CONFIDENTIAL         TIME SWITCH CP                                      [CONFIDENTIAL
                             ---------------------------------------------
                             TIME SWITCH CP  (DPNSS)
                             ---------------------------------------------
                             TIME SWITCH CP
                             ---------------------------------------------
          PORTION            LGC/DTC PROCESSOR                                      PORTION
                             ---------------------------------------------
                             ENHANCED LGC/DTC PROCESSOR
                             ---------------------------------------------
                             UPGRADED SIGNALING PROCESS
                             ---------------------------------------------
          OMITTED]           MASTER PROC MEMORY PLUS CP                             OMITTED]
                             ---------------------------------------------
                             MP MEMORY PLUS
                             ---------------------------------------------
                             DS30A LCM INTERFACE CP
                             ---------------------------------------------
                             LCM PROCESSOR
                             ---------------------------------------------
                             LCM PROCESSOR ENHANCED
                             ---------------------------------------------
                             DIGROUP CONTROL
                             ---------------------------------------------
                             DIGROUP CTLR CP
                             ---------------------------------------------
                             POWER CONV 5V/15/
                             ---------------------------------------------
                             BUS INTERFACE CP
                             ---------------------------------------------
                             PLD BUS INTERFACE CARD
                             ---------------------------------------------
                             RINGING GENERATOR
                             ---------------------------------------------
                             REMOTE RING GENERATOR CP
                             ---------------------------------------------
                             CCS7 SIGNALLING TERM CP
                             ---------------------------------------------
                             DPNSS SIGNALLING TERM CP
                             ---------------------------------------------
                             SIGNALLING TERM BUFFER CP
                             ---------------------------------------------
                             SIGNALLING TERM INTERFACE
                             ---------------------------------------------
                             STI WITH TERMINATOR
                             ---------------------------------------------
                             NEW MESSAGING CP
                             ---------------------------------------------
                             MSG PROT & DOWNLOADABLE TO
                             ---------------------------------------------
                             DATA LINE CARD
- -------------------------------------------------------------------------------------------------------

                                       68
<PAGE>
- -------------------------------------------------------------------------------------------------------
                             LINK CONTROL
                             ---------------------------------------------
                             RMM CONTROL
                             ---------------------------------------------
                             ESA TONE AND CLOCK
                             ---------------------------------------------
                             UNIVERSAL TONE RECEIVER CP
                             ---------------------------------------------
                             UK LINE CARD
                             ---------------------------------------------
                             SRU BATTERY CHARGING UNIT
                             ---------------------------------------------
                             BATTERY CHARGING UNIT SHELF ASSY
                             ---------------------------------------------
                             NETWORK PORT CP
                             ---------------------------------------------
                             X-POINT CP (INTERNATIONAL)
                             ---------------------------------------------
                             TEST CODE CP
                             ---------------------------------------------
                             SRU COOLING UNIT
                             ---------------------------------------------
                             ISDN LCME POWER CONVERTOR
                             ---------------------------------------------
                             ALARM CABLE ASSY
                             ---------------------------------------------
                             DS-30 CABLE
                             ---------------------------------------------
                             CABLE ASSY (FFP-EALP)
                             ---------------------------------------------
                             CABLE ASSEMBLY
                             ---------------------------------------------
       [CONFIDENTIAL         CABLE ASSY                                          [CONFIDENTIAL
                             ---------------------------------------------
                             FSP TO END AISLE LIGHT CA
                             ---------------------------------------------
                             CONN CABLE ASSEMBLY
                             ---------------------------------------------
          PORTION            DS-30 CABLE                                            PORTION
                             ---------------------------------------------
                             MSG SWT DS30 INTF CA ASSY
                             ---------------------------------------------
                             MSG SWT DS30 INTF CA ASSY
                             ---------------------------------------------
          OMITTED]           MSG SWT DS30 INTF CA ASSY                              OMITTED]
                             ---------------------------------------------
                             POWER CABLE KIT
                             ---------------------------------------------
                             CABLE ASSEMBLY 9*54 COAX
                             ---------------------------------------------
                             RS232C & CURRENT LOOP CABLE
                             ---------------------------------------------
                             CMT-BUS EXT LOCAL CABLE
                             ---------------------------------------------
                             CPU PORT CP
                             ---------------------------------------------
                             CPU PORT CP
                             ---------------------------------------------
                             CPU (STATIC RAM) CP
                             ---------------------------------------------
                             CPU (STATIC RAM) CP
                             ---------------------------------------------
                             CPU WITH MEMORY
                             ---------------------------------------------
                             CPU WITH MEMORY
                             ---------------------------------------------
                             68030 PROCESSOR CP (40MHZ)
                             ---------------------------------------------
                             MEM 6M CP (SYNCH OVERIDE)
                             ---------------------------------------------
                             24MB MEMORY CP
                             ---------------------------------------------
                             MAPPER CIRCUIT PACK
                             ---------------------------------------------
                             MS-4PORT CIRCUIT PACK
                             ---------------------------------------------
                             FILLER CIRCUIT PACK
                             ---------------------------------------------
                             FILLER PADDLEBOARD CP
                             ---------------------------------------------
                             PWR CONVERT FILLER PK ASSY
                             ---------------------------------------------
                             DS512 PADDLEBOARD CP
                             ---------------------------------------------
                             CMBUS TERMINATOR PADDLEBRD
- -------------------------------------------------------------------------------------------------------

                                       69
<PAGE>
- -------------------------------------------------------------------------------------------------------
                             CM SUBSYS CLOCK PDBRD
                             ---------------------------------------------
                             DS30 4PORT PADDLEBOARD CP
                             ---------------------------------------------
                             TERMINAL INTERFACE PB CP
                             ---------------------------------------------
                             REMOTE TERM. INTERFACE CP
                             ---------------------------------------------
                             CM BUS EXT PADDLEBRD CP
                             ---------------------------------------------
                             CM BUS EXT PB
                             ---------------------------------------------
                             +5VOLTS POWER CONVERTER CP
                             ---------------------------------------------
                             -5VOLTS POWER CONVERTER CP
                             ---------------------------------------------
                             M.S. LOAD PADDLEBOARD
                             ---------------------------------------------
                             NTWK INTERF MOD COMM PACKS
                             ---------------------------------------------
                             +12V PWR CONVERTER
                             ---------------------------------------------
                             MS P-BUS TERMINATOR CP
                             ---------------------------------------------
       [CONFIDENTIAL         T-BUS ACCESS CP                                     [CONFIDENTIAL
                             ---------------------------------------------
                             MS CLOCK CP
                             ---------------------------------------------
                             MS SYS CLK-EXT OPTION 1 CP
                             ---------------------------------------------
          PORTION            MS EXT CLOCK INTR PDBOARD                              PORTION
                             ---------------------------------------------
                             SUBSYSTEM CLOCK PB
                             ---------------------------------------------
                             DS-30 BULKHEAD I/F LEFT
                             ---------------------------------------------
          OMITTED]           DS-30 BULKHEAD I/F RIGHT                               OMITTED]
                             ---------------------------------------------
                             DS-30 BULKHEAD I/F LEFT
                             ---------------------------------------------
                             DS-30 BULKHEAD I/F RIGHT
                             ---------------------------------------------
                             FILTER BULKHEAD PNL LEFT
                             ---------------------------------------------
                             FILTER BULKHEAD PNL RIGHT
                             ---------------------------------------------
                             DS-30 BULKHEAD IF (RIGHT)
                             ---------------------------------------------
                             CABLE BULKHEAD RIGHT
                             ---------------------------------------------
                             CABLE BULKHEAD LEFT
                             ---------------------------------------------
                             ISDN LINE DRAWER
                             ---------------------------------------------
                             LCME PROCESSOR CP
                             ---------------------------------------------
                             LCMI DIDGROUP CONTROLLER CP
                             ---------------------------------------------
                             ISDN ENHANCED LINE DRAWER BIC
                             ---------------------------------------------
                             ISDN ENHANCED LINE DRAWER PUPS CP
                             ---------------------------------------------
                             PRLCC CABLE
                             ---------------------------------------------
                             AIR FILTER
                             ---------------------------------------------
                             CARD KEY BUTTON LABEL
                             ---------------------------------------------
                             AIR FILTER
                             ---------------------------------------------
                             BUTTON LABEL
- -------------------------------------------------------------------------------------------------------

                                       70
<PAGE>
CIII-2   UNIT PRICE LIST TABLE FOR NON-DISCOUNTABLE ITEMS

THE FOLLOWING ITEMS ARE ALL UK SOURCED, PRICES ARE AVAILABLE ON APPLICATION.



- ------------------------------------------------------------------------------------------------------
                             DESCRIPTION                                        UNIT PRICE/(POUND)
                             -------------------------------------------------------------------------
                             2002 COAX CABLE (METRES)
                             -------------------------------------------
                             23" MOUNTING BRACKET
                             -------------------------------------------
                             3M ANTI STATIC CORD
                             -------------------------------------------
                             3M ANTI STATIC WRIST STRAP
                             -------------------------------------------
                             3M 715E ESD TEST UNIT
                             -------------------------------------------
                             VDU FALCO 20MACL
                             -------------------------------------------
                             DEC LA120-DA PRINTER 240V
                             -------------------------------------------
       [CONFIDENTIAL         DEC LA120-DA CURRENT LOOP                          [CONFIDENTIAL
                             -------------------------------------------
                             PLANTRONICS HEADSET (ACD)
                             -------------------------------------------
          PORTION            RACAL MPS1222 MODEM                                   PORTION
                             -------------------------------------------
                             RACAL MODEM S/A 9.6/19.2BD
                             -------------------------------------------
          OMITTED]           RACAL MODEM SHELF + PSU                              OMITTED]
                             -------------------------------------------

                             -------------------------------------------

                             -------------------------------------------
                             ATTENDANT CONSOLE
                             -------------------------------------------
                             ACD PHONE
                             -------------------------------------------
                             M5209 PHONE
                             -------------------------------------------
                             M5312 PHONE
                             -------------------------------------------
                             M518 PHONE
                             -------------------------------------------
                             M5212 PHONE
                             -------------------------------------------
                             POWER SUPPLY
                             -------------------------------------------
                             T ADAPTER
                             -------------------------------------------
                             LINE CORD
                             -------------------------------------------
                             WARNING LABEL FOR T ADAPTER
                             -------------------------------------------

                             -------------------------------------------
- ------------------------------------------------------------------------------------------------------
                 * ALL PHONES SUPPLIED WITH UK POWER SUPPLY, LINE CORD AND T ADAPTER
- ------------------------------------------------------------------------------------------------------

</TABLE>

                                       71
<PAGE>
EXHIBIT C         APPENDIX IV

DATED 1 MARCH 1993

BETWEEN TELEWEST GROUP AND NORTHERN TELECOM

CIV-1    TYPICAL DELIVERY SEQUENCE

This Appendix 5 of the Agreement contains Supplier's recommended sequence for
scheduling:

O          ORDER

THE CUSTOMER SHALL SUBMIT AN ORDER FOR A SWITCH STATING NUMBER OF LINES,
ACCEPTANCE DATE AND ANY OTHER PERTINENT INFORMATION.

Order acceptance will be within 15 working days of receiving the Customers Order
subject to mutual agreement.

O          CI - H/W ENGINEERING

In this period switch size, configuration and site specific floor plans must be
agreed between the Customer and Supplier.

Responsibilities, layouts and requirements for items such as DDF, MDF Power and
Air Conditioning, based on the Customers input, must also be agreed.

O          PROJECT PLANNING

BASED ON THE GENERIC PLAN, SUPPLIER AND THE CUSTOMER MUST PLACE EXACT DATES
AGAINST THE ACTIVITIES / MILESTONES SHOWN IN THE PLAN.

O          FLOOR PLAN AGREED

THE SITE SPECIFIC FLOOR PLAN MUST BE AGREED AND SIGNED BY BOTH SUPPLIER AND THE
CUSTOMER.

O          PRICING

TO ALLOW AN ORDER TO BE PLACED, THE SPECIFIC PRODUCT/SOFTWARE CONFIGURATION
AGREED ON, AND ANY OPTIONS REQUIRED BY THE CUSTOMER, MUST BE PRICED BY SUPPLIER.

O          CHANGE ORDER

The Customer will raise a change order to reflect any alterations to the initial
order following CI meetings and the pricing provided by the supplier.

O          SPEC WRITING

Switch specification writing, carried out by Supplier, against Product
configuration agreed prior to placement of order.

O          MANUFACTURE

Manufacture of SWITCH by Supplier to agreed specification.

O          ACCEPTANCE TEST PLAN AGREED

                                       72
<PAGE>
By this date Supplier and The Customer will have an agreed Acceptance Test Plan,
tailored to fit into the time allowed in the implementation plan for Acceptance
Testing.

O          CI - DATAFILL

Datafill CI Meeting held between Supplier and Customer engineers will discuss
requirements for all routing and in service datafill. It is likely that this
will be followed by a period of time in which the Customer will need to
consolidate their requirements. This must be completed by the "Line & Trunk
Input Complete" date to allow Supplier to prepare the switch databuild.

O          LINE & TRUNK INPUT COMPLETE

By this date the Customer must provide all necessary input required for the
In-service switch databuild.

O          S/W LOADBUILD & H/W DATAFILL COMPLETE

Software load production with all Product tables completed for Supplier
commissioning.

O          SHIP

SWITCH equipment shipped from the manufacturing plant in Canada to the UK.

O          ROOM READY / DC POWER AVAILABLE

By this date the Customer must have the switch site ready for the SWITCH
installation. The following items must be completed:

    ALL BUILDING WORKS                      Site must be clean and clear of all
                                            building waste.

    FLOORING                                Includes sealing of base floor and
                                            the provision of false floor.

    DECORATION                              All walls and ceilings must be 
                                            complete.

    POWER                                   240V ac mains and Lighting in all 
                                            working areas.

    AIR CONDITIONING                        The AC system must be fully 
                                            operational.

    FIRE PREVENTION SYSTEM                  Must be fully operational.

    SECURE                                  STORAGE SPACE A lockable storage
                                            area must be made available to
                                            Supplier for storage of equipment
                                            and tools.

    FACILITIES FOR SUPPLIER STAFF           Office or desk space, canteen 
                                            facilities, wc, phone and fax etc.

    DC                                      POWER Switch power should be fully
                                            commissioned and available such that
                                            no power "shut downs" or
                                            interruptions are required during
                                            the Installation & Commissioning
                                            interval.

    BUILDING EARTH POINT                    A suitable earth point should be 
                                            provided in the equipment room.


                                       73
<PAGE>
O          PRE-INSTALLATION SITE VISITS

Joint site visits, Supplier and Customer, will be held prior to delivery to
confirm site readiness. All items listed under "Room Ready/DC Power Available"
above will be checked. In addition the following items must also be in place:

    ACCESS                                  Suitable access, ramps, hoists, 
                                            etc., for delivery of equipment.

    ACCESS                                  Requirements for Supplier and
                                            Supplier's sub-contractor personnel,
                                            i.e., building passes, security
                                            procedures etc.

    HR                                      PROCEDURES Customer to provide
                                            details of regulations concerning
                                            eating, drinking, smoking, first
                                            aid, car parking, etc., on that
                                            particular site.

    FIRE PROCEDURE                          Customer to provide details of fire
                                            escapes/exits and procedures.

    ELECTRICAL CERTIFICATION                Customer to provide copy of
                                            certification of electrical
                                            supplies.

    COSHH                                   Customer to provide list of all
                                            chemical substances held on site.

O          DELIVERY

Supplier to deliver SWITCH equipment to site.

O          INSTALLATION / COMMISSIONING

During these activities the Supplier will require twenty-four hour / seven
day-per-week access to the switch room. The Supplier will follow standard IM
925/931 Supplier Installation and Commissioning procedures for these activities.

The Customer will be required to "sign-off" each test procedure on its
completion. It is therefore necessary that the Customer's Clerk Of Works, with
authority to "sign-off" the test procedures, be available on site at all times.

O          PRE - IN SERVICE TESTS

Final checks by Supplier TAS Department to ensure the Switch is ready for
service.

O        IN SERVICE DATABUILD APPLIED TO SWITCH

All trunking and lines datafill, previously agreed with the customer, is now
applied to the switch.

O        ACCEPTANCE TESTS

Specific testing to an agreed schedule as agreed with the customer in advance.
These tests may be carried out by Supplier Engineers and observed by the
Customers Engineers , or vice versa

O        INTERCONNECT TESTS

Supplier can assist with all technical aspects of the Interconnect testing with
either BT or MCL.

                                       74
<PAGE>
It is assumed that, due to the required time scales, initial interconnect will
be with MCL, and that the Customer will negotiate simplified but aggressive
schedules - not to exceed ten working days - with MCL to achieve the time scales
of the overall plan.

It is recognised by the Customer that if interconnect to BT is required, then
testing will be outside of the agreed twenty week plan.

The Customer must take responsibility for agreeing suitable test slots with the
Interconnect Partner and agreeing a schedule of tests that will not impact the
RFS date for the switch. The Customer must also undertake to manage the day to
day activities of the Interconnect Partner during the testing phase and to take
responsibility for any delays caused by the Interconnect partner.

O          RFS

SWITCH 100 Switch Ready For Service.



                                       75
<PAGE>
CIV-2    NT -- TELEWEST DMS 100 GENERIC PLAN



                                [GRAPHIC OMITTED]





   THE OMITTED GRAPHIC IS A GENERIC TIMETABLE SUMMARIZING WHAT IS OUTLINED IN
                 GREATER DETAIL IN EXHIBIT C, APPENDIX IV ABOVE.







                                       76
<PAGE>
[THIS PAGE INTENTIONALLY LEFT BLANK]





                                       77
<PAGE>
EXHIBIT D         NETWORK OPERATION SUPPORT SYSTEM PURCHASES

This Exhibit D is attached to and made part of that certain General Purchase
Agreement dated 1 March 1993 ("Agreement"), by and between TeleWest
Communications Group Limited ("Customer") and Northern Telecom Europe Limited
("Supplier").

                                    RECITALS

WHEREAS, Customer issued Request for Proposal entitled "Switch/RFP/001" dated
November 1992, (the "RFP") to Supplier which included portions that solicited a
proposal for Network Operation Support Systems (NOS Systems);

WHEREAS, Supplier responded to Customer's RFP by submitting its Proposal and
supporting documents which offered to provide Network Operations Support systems
comprised of Products, Software and Services dated 4 January 1993 ("Proposal");

NOW, THEREFORE, in consideration of the mutual promises and advantages to the
parties, the parties incorporate by reference and agree to the accuracy of the
above recitals and further agree as follows:






                                       78
<PAGE>
D1       SCOPE

  D1.1         This Exhibit D to the Agreement sets forth the intent of Customer
               and Supplier for the procurement of a NOS System. The parties
               agree to mutually develop definitions of a comprehensive NOS
               System, by 30 March, 1993. Customer agrees to purchase and
               Supplier agrees to provide Product(s), Software and Services as
               derived in the final NOS System definition. This Exhibit D shall
               govern the procurement of the NOS Systems.

  D1.2         Clauses D4.0 to D8.0 inclusive provide the initial definition of
               the NOS System required by Customer. Clause D9.0 provides the
               initial pricing and configuration parameters issued by the
               Supplier to subcontractors ("Vendor Item") who may wish to
               provide Product(s), Software and Services for the NOS Systems.

  D1.3         Where any term and/or condition found elsewhere under this
               Agreement conflicts with this Exhibit D, the terms and conditions
               of this Exhibit D shall prevail.

D2       DEFINITIONS

  D2.1         In addition to the definitions set forth elsewhere in the
               Agreement, when used in this Exhibit D the capitalised terms set
               forth herein shall have the meaning so indicated.

  D2.2         "Change Order" means written requests for changes issued by
               Customer to Supplier regarding changes to the Specifications,
               requirements and criteria.

  D2.3 "Customer" means TeleWest Communications Group Limited.

  D2.4 "List Price" means Supplier's published price for Products, Software and
Services.

  D2.5         "Modifications" means design, program, test and implementation
               modifications and changes to the Specifications and Customer's
               criteria as set forth by Customer's Change Order(s).

  D2.6         "Vendor Item" means Product(s) procured by Supplier from other
               suppliers, which are provided as part of the Order.

D3       SUPPLIER'S OFFER

  D3.1         Supplier's Proposal and subsequent correspondence are included
               under Appendix 1, attached hereto and by this reference
               incorporated into this Exhibit D of the Agreement. The
               representations made by Supplier in its Proposal as modified
               and/or supplemented in the subsequent correspondence unless
               otherwise modified or deleted under this Exhibit D shall be
               binding upon Supplier for NOS Orders. However, only the terms,
               conditions and/or requirements stated under this Agreement and
               this Exhibit D shall be considered binding on Customer.

D4       IMPLEMENTATION SCHEDULE

  D4.1         Supplier agrees to provide the Systems to Customer in accordance
               with an Implementation Schedule ("Implementation Schedule") which
               shall be mutually upon not later than 31 March 1993. The
               Implementation Schedule will include:

       D4.1.1        Component and aggregate NOS price;

       D4.1.2        A schedule for initial integration testing with Customer's
                     Switches;

                                       79
<PAGE>
       D4.1.3        A schedule for final integration testing with Customer's 
                     Switches and other systems.

       Unless specifically agreed in writing in no case shall the Implementation
       Schedule dates change from those agreed upon between the parties. The
       Implementation Schedule may be adjusted for mutually agreed upon delays.

D5       NOS SYSTEM INTEGRATION

  D5.1         Supplier agrees to act as the full NOS Systems integrator for the
               systems provided by the Supplier as well as those specified under
               Clause D9.3.

D6       SWITCH MONITORING ANALYSIS SYSTEM DESCRIPTION

D6.1     CUSTOMER REQUIREMENTS

               Customer will use the switching NOS ("Switching NOS") described
               under this Clause to monitor and respond to network element
               irregularities, alarms and trouble conditions. The Switching NOS
               must:

       D.6.1.1       Operate on a real time basis, be able to collect, store,
                     display alarms and manipulate large quantities of network
                     element logging data. Such Switching NOS must also provide
                     real time analysis and batch analysis of switch path and
                     common control equipment failures for all switches;

       D.6.1.2       Make the logging data collected from network elements
                     available on-line [CONFIDENTIAL PORTION OMITTED] Archiving
                     the log data to tape and restoring to on-line from tape
                     should be available at the user's request;

       D.6.1.3       Eliminate as much manual interpretation of events and
                     alarms as possible. This should be done by employing user
                     definable processes to do additional testing or to hand off
                     for human intervention. It should create a trouble ticket
                     when a threshold has been passed or a combination of events
                     has occurred.

D6.2     SWITCHING NOS INTERFACE TO USERS

   Supplier agrees to provide a Switch NOS that will include graphic display on
   the user's workstation giving office data for which the individual is
   responsible including:

       D6.2.1        [CONFIDENTIAL PORTION OMITTED]

       D6.2.2        [CONFIDENTIAL PORTION OMITTED]

       D6.2.3        [CONFIDENTIAL PORTION OMITTED]

D6.3     SWITCHING NOS FLEXIBILITY

   [CONFIDENTIAL PORTION OMITTED]

D6.4     SWITCHING NOS OPERATIONS AND MAINTENANCE

   Supplier will design the Switch NOS so that a minimal level of human
   resources will be required for its maintenance, operation and system
   requirement.


                                       80
<PAGE>
D6.5     SWITCHING NOS FAULT TOLERANCE

       D6.5.1        Due to the nature and function of the Switch NOS, the main
                     computer processors provided by Supplier will be fault
                     tolerant (A system which will continue uninterrupted to
                     perform its normal function even in the event of a failure
                     of a component, such as a memory board, disk controller or
                     disk). The Switch NOS should have redundant components to
                     avoid total system downtime (This is not intended to
                     dictate a 'Non-stop' computer platform architecture, but
                     the platform must have demonstrable high reliability and
                     availability).

       D6.5.2        The Switch NOS will have a minimum of downtime and will
                     continue functioning during backup and software upgrades.
                     Component replacement must be possible without taking the
                     system down.

       D6.5.3        Switch NOS availability on-line will be a minimum of 99.9%
                     during any twelve month period including scheduled downtime
                     for backups and Software upgrades as well as all
                     unscheduled downtime.

D6.6     SWITCHING NOS INTERFACE STANDARDS

   All interfaces utilised in the system will have an open published
architecture.

D6.7     SWITCHING NOS RECOVERY PLAN

       D6.7.1        The supplier will provide a detailed plan for recovery in
                     the event a processor, controller, peripheral device or
                     system power becomes unavailable due to equipment failure.

       D6.7.2        The supplier will provide a detailed plan for recovery from
                     a total disaster (i.e. fire, flood). This will make
                     recommendations and include data to be stored off premise,
                     emergency contacts, approximate time for Product and
                     baseline software to be available and a list of items to be
                     recovered manually instead of through backup data.

D6.8     SWITCHING NOS COMMUNICATION BREAKDOWN

       D6.8.1        In the event that a Switching NOS is unable to communicate
                     with any or all switches [CONFIDENTIAL PORTION OMITTED] a
                     critical alarm will be displayed plus an audible alarm in
                     the centre.

       D6.8.2        The Switching NOS will have the ability to detect the
                     absence of message from a network element. It should then
                     begin a "testing" process to determine as best as it can
                     the nature of the loss of contact.

       D6.8.3        Failure of any individual external device will not affect
                     the ability of the Switch NOS to communicate with other
                     devices.

D6.9     SWITCHING NOS OVERLOAD HANDLING

   The Switching NOS will be designed to minimise degradation of response times,
   even during periods of high system volume. Procedures and options will be
   specified when the Switching NOS runs into an overload condition, such as
   excessive messages coming in, lack of disk storage space, too many users
   competing for the same process etc. The procedures will include priorities
   for each job, file, message etc. The Switching NOS administrator should be
   allowed to alter these priorities if necessary to make the system run more
   efficiently.

                                       81
<PAGE>
D6.10    SWITCHING NOS TROUBLE TICKET ADMINISTRATION

   [CONFIDENTIAL PORTION OMITTED]

D6.11    SWITCHING NOS PERFORMANCE MEASUREMENT

           D6.11.1        The Switching NOS will have the ability to store and
                          manipulate performance measurement data provided by
                          each switch. The measurement will be independent of
                          switch type or manufacturer.

           D6.11.2        Measurement data will automatically be transferred to
                          a workstation so that index computation may be
                          performed and reports developed.

           D6.11.3        The supplier will detail all switch performance
                          measurement provided by the Switching NOS.

D6.12    SWITCHING NOS ON-LINE HELP/DOCUMENTATION

   The Switching NOS should provide context sensitive help from any screen.
   Users will be able to tailor help data to include their own notes.

D6.13    SWITCHING NOS ON-LINE SYSTEM SECURITY

       D6.13.1       The Switching NOS will give the system administrator full
                     control of which network elements and which processes each
                     user and each user terminal can access. The highest level
                     of access control must be provided.

       D6.13.2       Log-on/password levels of security with password ageing
                     should be provided. All log-ons are required to have
                     passwords. Automatic terminal log-off from the system upon
                     loss of carrier or inactivity on a terminal for a user
                     definable period of time should be provided.

D6.14 ADDITIONAL ITEMS WHICH NEED TO BE PROVIDED ARE:

   Training; (user and system administrator); documentation; spare parts
   requirements; tools, test sets and maintenance supplies list; preventive
   maintenance intervals (after warranty) [CONFIDENTIAL PORTION OMITTED]

D7       TRAFFIC DATA COLLECTION DESCRIPTION

A data collection NOS will be used by Network Operations Centre switching
engineers to review the traffic patterns and administrative data. The system
must operate on a real time basis, along with batch analysis capabilities and be
able to collect, store and format large quantities of data into user friendly
format.

D7.1     INTERFACE TO USERS

       D7.1.1        A workstation providing switch data with the capabilities
                     of easily manipulating and formatting data is required. A
                     printer is also a requirement.

       D7.1.2        Data needed for determining busy hour, busy season and
                     capabilities for each switch component must be captured.
                     Data must be available on-line [CONFIDENTIAL PORTION
                     OMITTED] Archiving the data to tape and restoring to
                     on-line from tape should be available at the user's
                     request.

                                       82
<PAGE>
D7.2     OPERATION AND MAINTENANCE

   The system should be designed so a minimal level of manpower will be required
   for maintenance, operation and system integrity.

D7.3     INTERFACE STANDARDS

   All interfaces utilised in the system must have an open published
architecture.

D7.4     RECOVERY PLAN

   The supplier will provide a detailed plan for recovery from a total disaster
   (i.e. fire, flood). This should include data to be stored off premise,
   emergency contacts, approximate time for Product and baseline software to be
   available and a list of items which need to be recovered manually instead of
   through backup data.

D7.5     PERFORMANCE MEASUREMENT

       D7.5.1        The system must have the ability to store and manipulate
                     switch component data plus traffic measurements (Usage, peg
                     count, overflow, % capacity).

       D7.5.2        Formatting of measurement data onto necessary reports
                     should be flexible and dependent upon user's needs.

       D7.5.3 The supplier should detail all measurement data available by the
system.

D7.6     ON-LINE HELP/DOCUMENTATION

   The system should provide context sensitive help from any screen. Users
   should be able to tailor help data to include their own notes.

D7.7     SYSTEM SECURITY

   Log-on/password levels of security with password ageing should be provided.
   All log-ons are required to have passwords. Automatic terminal log-off from
   the system should be provided.

D7.8 ADDITIONAL ITEMS WHICH NEED TO BE PROVIDED ARE:

   Training; (user and system administrator); documentation; spare parts
   requirements; tools, test sets and maintenance supplies list; preventive
   maintenance intervals (after warranty) [CONFIDENTIAL PORTION OMITTED]

D8       SERVICE ORDER PROCESSING SYSTEM DESCRIPTION

A Service Order Processing system is required to provide, at the NOC, a
centralised, remote, real-time [CONFIDENTIAL PORTION OMITTED] The system shall
have the potential for expansion to accommodate additional switches
[CONFIDENTIAL PORTION OMITTED], other network elements and other suppliers
products by either or both Product and software upgrade.

D8.1     INTERFACE TO OTHER ASSOCIATED SYSTEMS

   [CONFIDENTIAL PORTION OMITTED]


                                       83
<PAGE>
D8.2     OPERATION AND MAINTENANCE

   The system should be designed so a minimal level of manpower will be required
   for maintenance, operation and system integrity.

D8.3     INTERFACE STANDARDS

   All interfaces utilised in the system must have an open published
architecture.

D8.4     RECOVERY PLAN

   The supplier will provide a detailed plan for recovery from a total disaster
   (i.e. fire, flood). This should include data to be stored off premise,
   emergency contacts, approximate time for Product and baseline software to be
   available and a list of items which need to be recovered manually instead of
   through backup data.

D8.5     PERFORMANCE MEASUREMENT

       D8.5.1 The supplier should detail all measurement data available by the
system.

       D8.5.2        Formatting of such measurement data onto necessary reports
                     should be flexible and dependent upon user's needs.

D8.6     SYSTEM SECURITY

   Log-on/password levels of security with password ageing should be provided.
   All log-ons are required to have passwords. Automatic terminal log-off from
   the system should be provided.

D8.7      ADDITIONAL ITEMS WHICH NEED TO BE PROVIDED ARE:

   Training; (user and system administrator); documentation; spare parts
   requirements; tools, test sets and maintenance supplies list; preventive
   maintenance intervals (after warranty) [CONFIDENTIAL PORTION OMITTED]

D9       INTERCONNECT (ACCESS) BILLING SYSTEM (INCLUDING BILLING DATA 
         COLLECTION AND DISTRIBUTION)

An Interconnect Billing system will be used to capture AMA data from all
Switches through a polled electronic data interface. [CONFIDENTIAL PORTION
OMITTED]. The Interconnect Billing data must be archived to support
reconciliation when necessary.

D9.1     INTERFACE TO OTHER ASSOCIATED SYSTEMS

   [CONFIDENTIAL PORTION OMITTED]

D9.2     OPERATION AND MAINTENANCE

   The system should be designed so a minimal level of manpower will be required
   for maintenance, operation and system integrity.

D9.3     INTERFACE STANDARDS

   All interfaces utilised in the system must have an open published
architecture.

                                       84
<PAGE>
D9.4     RECOVERY PLAN

   The supplier will provide a detailed plan for recovery from a total disaster
   (i.e. fire, flood). This should include data to be stored off premise,
   emergency contacts, approximate time for Product and baseline software to be
   available and a list of items which need to be recovered manually instead of
   through backup data.

D9.5     PERFORMANCE MEASUREMENT

       D9.5.1 The supplier should detail all measurement data available by the
system.

       D9.5.2        Formatting of such measurement data onto necessary reports
                     should be flexible and dependent upon user's needs.

D9.6     SYSTEM SECURITY

   Log-on/password levels of security with password ageing should be provided.
   All log-ons are required to have passwords. Automatic terminal log-off from
   the system should be provided.

D9.7 ADDITIONAL ITEMS WHICH NEED TO BE PROVIDED ARE:

   Training; (user and system administrator); documentation; spare parts
   requirements; tools, test sets and maintenance supplies list; preventive
   maintenance intervals (after warranty) and [CONFIDENTIAL PORTION OMITTED]

D10      SUMMARY OF NOC SYSTEMS

D10.1    NOC OPERATIONAL SUPPORT SYSTEMS


<TABLE>
<CAPTION>
- --------------------------------------------------------------------------------------------------------------
SWITCH MONITORING ANALYSIS  TRAFFIC DATA COLLECTION    INTERCONNECT (ACCESS)       SUBSCRIBER BILLING
                                                       BILLING
- --------------------------------------------------------------------------------------------------------------
<S>                         <C>                        <C>                        <C>



                         [CONFIDENTIAL PORTION OMITTED]



- --------------------------------------------------------------------------------------------------------------

</TABLE>



                                       85
<PAGE>
D10.2    [CONFIDENTIAL PORTION OMITTED]

D11      PRICE ASSUMPTIONS

D11.1    TELEWEST OS SYSTEM ASSUMPTIONS

   Maximum Prices, as quoted for the NOC Operations Support Systems, have been
   obtained and estimated against the architectural and capacity assumptions
   documented below

D11.2    INTRODUCTION

       D11.2.1       [CONFIDENTIAL PORTION OMITTED]

       D11.2.2       [CONFIDENTIAL PORTION OMITTED]

       D11.2.3       Any areas of non-compliance must be explicitly stated and
                     an alternative proposal or timed plan to achieve compliance
                     shall be provided.

D11.3    ASSUMPTIONS

       D11.3.1       ARCHITECTURE (INITIAL DEPLOYMENT)

       [CONFIDENTIAL PORTION OMITTED]

       D11.3.2       BILLING ISSUES

       [CONFIDENTIAL PORTION OMITTED]

       D11.3.3       SERVICE ORDER ISSUES

       [CONFIDENTIAL PORTION OMITTED]

D11.4    REFERENCES

   All these referenced documents have DRAFT, UNCONTROLLED status and may be
subject to change.

  D11.4.1      [CONFIDENTIAL PORTION OMITTED]

  D11.4.2      [CONFIDENTIAL PORTION OMITTED]

  D11.4.3      [CONFIDENTIAL PORTION OMITTED]


                                       86
<PAGE>
EXHIBIT D         APPENDIX I

DI-1       NOS PURCHASES, PRICING
DI-1.1   Unit Prices Valid until 31 March 1993

DI-1     INTERNATIONAL COMPUTERS LIMITED (ICL)

   DI-2.1.        INTRODUCTIONS AND REFERENCES

DI-2.1.1 INTRODUCTION

         A meeting was held between TeleWest, Northern Telecom Europe and ICL on
         19 February 1993, so that a better understanding of TeleWest's
         requirements for a Mediation System (Data collector) could be discussed
         and recorded by ICL. The resulting document would form the basis for a
         budgetary proposal, followed by a more detailed costed proposal.

DI-2.1.2 PARTICIPANTS

         Northern Telecom are acting as the Prime Contractors for TeleWest in
         the selection of the various sub-contracted elements of work.

         This meeting followed an earlier meeting on 11/02/93, where some of the
         basics were discussed and was the source of some of the following
         information on the requirements.

DI-2.1.3 TELEWEST BUSINESS POSITION

         TeleWest have 9 Cable Franchisees, who currently operate over the
         Mercury network. [CONFIDENTIAL PORTION OMITTED]

         TeleWest have a first switch go-live on 15 August 1993.

DI- 2.2  STATEMENT OF REQUIREMENTS

DI-2.2.1 TIMESCALES

                  First switch go-live August 1993

                  Start    Interim contracts between NTE and TW frame agreement
                           forecast at mid March. Contract to successful
                           supplier also mid March (deduced from statements).

DI-2.2.2 SCALE

         Nine (9) NTE DMS switches (separate franchisees) Geographically
         distributed throughout the UK. Using Mercury network currently.
         [CONFIDENTIAL PORTION OMITTED]
         Customers are currently billed from the SMS monthly.

DI-2.2.3.         VOLUMES

         [CONFIDENTIAL PORTION OMITTED]

         Outputs:          [CONFIDENTIAL PORTION OMITTED]

         Input volumes:

         [CONFIDENTIAL PORTION OMITTED]


                                       87
<PAGE>
         Output volumes:

         [CONFIDENTIAL PORTION OMITTED]

DI- 2.2.4.        POLLING WINDOWS

         [CONFIDENTIAL PORTION OMITTED]

DI- 2.2.5.        INPUT COMMUNICATIONS

         [CONFIDENTIAL PORTION OMITTED]

         The AMA records to be produced by the switch, FOR TELEWEST, have
         only been loosely defined by examples. [CONFIDENTIAL PORTION
         OMITTED]

DI- 2.2.6.        OUTPUT COMMUNICATIONS

         [CONFIDENTIAL PORTION OMITTED]

DI- 2.2.7.        TRANSFORMATION

         [CONFIDENTIAL PORTION OMITTED]

DI- 2.2.8         RATING/TARIFFS

         [CONFIDENTIAL PORTION OMITTED]

DI- 2.2.9.        RESILIENCE

         [CONFIDENTIAL PORTION OMITTED]

DI- 2.2.10.       ENQUIRY

         No Enquiry facility is required.

DI- 2.2.11.       ALARMS

               Audible alarm suggested to support screen alarm state.
               (possibility of connection into the [CONFIDENTIAL PORTION
               OMITTED] alarm system)


                                       88
<PAGE>
DI- 2.2.12.       ERROR CORRECTION

         [CONFIDENTIAL PORTION OMITTED]

DI- 2.2.13.       MMI

         Required.  Screens to be standard.
         Interested in GUI as an option.

DI- 2.2.14.       REPORTS

         Reports assumed to be required, standard status formats

DI- 2.2.15.       AUDIT

         Suggested as required by OFTEL.

DI- 2.2.16.       DISASTER STAND-BY

         [CONFIDENTIAL PORTION OMITTED]

DI- 2.2.17.       SUMMARY DIAGRAM

         [CONFIDENTIAL PORTION OMITTED]

DI-2.3   KEY ASSUMPTIONS

         [CONFIDENTIAL PORTION OMITTED]

DI-2.4   MAXIMUM BUDGETARY PRICE

         Application Product Licence

         Application Royalty

         System Software

         Hardware

         Validation & Test

         Documentation

         Training

         Project Management

         Bespoke Development

         Three Years Warranty

         Total Price for items above             [CONFIDENTIAL PORTION OMITTED]

DI- 2.5  [CONFIDENTIAL PORTION OMITTED] COPYRIGHT

The information contained in this Clause DI- 2 is the copyright of [CONFIDENTIAL
PORTION OMITTED] is issued in confidence only for the purpose for which it is
supplied. It must not be reproduced, in whole or in part, or used for tendering
or manufacturing purposes except under an agreement or with the consent in


                                       89
<PAGE>
writing of [CONFIDENTIAL PORTION OMITTED] and then on the condition that this
note be included in such reproduction.

DI-3     INTENTIONALLY LEFT BLANK

DI-4     INTELICOM SYSTEM

DI-4.1   INTERCONNECT ACCOUNTING

     Item                  Description                             Price

     DI-4.1.1                                  [CONFIDENTIAL PORTION OMITTED]

     DI-4.1.2                                  [CONFIDENTIAL PORTION OMITTED]

     DI-4.1.3                                  [CONFIDENTIAL PORTION OMITTED]

     DI-4.1.4                                  [CONFIDENTIAL PORTION OMITTED]

     DI-4.1.5                                  [CONFIDENTIAL PORTION OMITTED]

                                                               --------------

                           TOTAL                  [CONFIDENTIAL PORTION OMITTED]






                                       90
<PAGE>
DI-4.2   NETWORK PROVISIONING

     Item                  Description                                   Price

     DI-4.2.1                                  [CONFIDENTIAL PORTION OMITTED]

     DI-4.2.2                                  [CONFIDENTIAL PORTION OMITTED]

     DI-4.2.3                                  [CONFIDENTIAL PORTION OMITTED]

     DI-4.2.4                                  [CONFIDENTIAL PORTION OMITTED]

     DI-4.2.5                                  [CONFIDENTIAL PORTION OMITTED]

     DI-4.2.6                                  [CONFIDENTIAL PORTION OMITTED]

     DI-4.2.7                                  [CONFIDENTIAL PORTION OMITTED]

     DI-4.2.8                                  [CONFIDENTIAL PORTION OMITTED]

                           TOTAL                 [CONFIDENTIAL PORTION OMITTED]

                                                                  ------------

DI-4.3   INTRODUCTION

   Based on your request for proposal [CONFIDENTIAL PORTION OMITTED] is pleased
   to provide a response that addresses both the interconnect accounting and
   network provisioning components as described in the [CONFIDENTIAL PORTION
   OMITTED] This response outlines general system requirements pertaining to
   each of the proposed components, along with budgetary maximum pricing.

   Firm pricing can be supplied after a Detailed Functional Requirements
   document has been produced. This document, a key part of system definition,
   will act as the impetus for system functionality and firm pricing.

   [CONFIDENTIAL PORTION OMITTED]

DI-4.4   OVERVIEW

   The overview for each of the system components, interconnect accounting and
   network provisioning, are defined separately in this section. 
   [CONFIDENTIAL PORTION OMITTED]

DI-4.4.1 INTERCONNECT ACCOUNTING

       [CONFIDENTIAL PORTION OMITTED]

DI-4.4.2 NETWORK PROVISIONING

       [CONFIDENTIAL PORTION OMITTED]

DI-4.5   QUALIFICATIONS

   [CONFIDENTIAL PORTION OMITTED]

                                       91
<PAGE>
DI-4.6   SERVICES

   [CONFIDENTIAL PORTION OMITTED]

DI-4.7   ASSUMPTIONS

  [CONFIDENTIAL PORTION OMITTED]

DI-4.8   PRICING

   [CONFIDENTIAL PORTION OMITTED]

DI-5     PRISM SYSTEMS

DESCRIPTION OF OFFER:               [CONFIDENTIAL PORTION OMITTED]

DELIVERY DATE:                      August 1993, [CONFIDENTIAL PORTION OMITTED]

DELIVERY POINT:                     FOB United Kingdom.

CURRENCY:                           GBP Sterling.

TAXES AND DUTIES:                   All in country taxes and duties excluded.

TERMS:                              [CONFIDENTIAL PORTION OMITTED]

VALIDITY:                           60 days.

ITEM NO.        DESCRIPTION                             QUANTITY          TOTAL

DI-5.1                                      [CONFIDENTIAL PORTION OMITTED]

DI-5.2                                      [CONFIDENTIAL PORTION OMITTED]

DI-5.3                                      [CONFIDENTIAL PORTION OMITTED]

DI-5.4                                      [CONFIDENTIAL PORTION OMITTED]

DI-5.5                                      [CONFIDENTIAL PORTION OMITTED]

DI-5.6                                      [CONFIDENTIAL PORTION OMITTED]

DI-6     TELEWEST NETWORK SUPPORT SYSTEMS.

Northern Telecom shall undertake the role of [CONFIDENTIAL PORTION OMITTED]

The general scope of the network OA&M functionality and facilities to be
implemented under this agreement shall be limited to the four functions
identified as follows:

DI-6.1   SWITCH MONITORING AND ANALYSIS SYSTEM

   [CONFIDENTIAL PORTION OMITTED]

DI-6.2   TRAFFIC DATA COLLECTION SYSTEM

   [CONFIDENTIAL PORTION OMITTED]


                                       92
<PAGE>
DI-6.3   SERVICE ORDER PROCESSING SYSTEM

   [CONFIDENTIAL PORTION OMITTED]

DI-6.4   INTERCONNECT (ACCESS) BILLING

DI-7     SWITCHING SYSTEM DESCRIPTION

[CONFIDENTIAL PORTION OMITTED]

DI-7.1   INTERFACE TO USERS

   [CONFIDENTIAL PORTION OMITTED]

DI-7.2   FLEXIBILITY

   [CONFIDENTIAL PORTION OMITTED]

DI-7.3   OPERATIONS AND MAINTENANCE

   The system should be designed so that a minimal level of manpower will be
   required for its maintenance, operation and system requirement.

DI-7.4   FAULT TOLERANCE

   [CONFIDENTIAL PORTION OMITTED]

   This is a high priority system demanding absolute minimum downtime.
   Availability on-line must be a minimum of 99.9% including scheduled downtime
   for backups and software upgrades as well as all unscheduled downtime.

DI-7.5   INTERFACE STANDARDS

   All interfaces utilised in the system must have an open published
architecture.

DI-7.6   RECOVERY PLAN

   The supplier must provide a detailed plan for recovery in the event a
   processor, controller, peripheral device or system power becomes unavailable
   due to equipment failure.

   The supplier must provide a detailed plan for recovery from a total disaster
   (i..e.,.fire, flood). This should include data to be stored off premise,
   emergency contacts, approximate time for hardware and baseline software to be
   available and a list of items to be recovered manually instead of through
   backup data.

DI-7.7   COMMUNICATION BREAKDOWN

   In the event that a system is unable to communicate with any or all switches
   [CONFIDENTIAL PORTION OMITTED] a critical alarm must be displayed plus an
   audible alarm in the centre.

   The system must have the ability to detect the absence of message from a
   network element. It should then begin a "testing" process to determine as
   best as it can the nature of the loss of contact.

   Failure of any individual external device must not affect the ability of the
   system to communicate with other devices.


                                       93
<PAGE>
DI-7.8   OVERLOAD HANDLING

   The system must be designed to minimise degradation of response times, even
   during periods of high system volume. Procedures and options must be
   specified when the system runs into an overload condition, such as excessive
   messages coming in, lack of disk storage space, too many users competing for
   the same process etc. The procedures must include priorities for each job,
   file, message etc. The system administrator should be allowed to alter these
   priorities if necessary to make the system run more efficiently.

DI-7.9   TROUBLE TICKET ADMINISTRATION

   [CONFIDENTIAL PORTION OMITTED]

DI-7.10  PERFORMANCE MEASUREMENT

   The system must have the ability to store and manipulate performance
   measurement data provided by each switch. The measurement must be independent
   of switch type or manufacturer.

   Measurement data should automatically be transferred to a workstation so that
   index computation may be performed and reports developed.

   The supplier should detail all switch performance measurement provided by the
system.

DI-7.11  ON-LINE HELP/DOCUMENTATION

   The system should provide context sensitive help from any screen. Users
   should be able to tailor help data to include their own notes.

DI-7.12  SYSTEM SECURITY

   The system must give the system administrator full control of which network
   elements and which processes each user and each user terminal can access. The
   highest level of access control must be provided. Log-on/password levels of
   security with password ageing should be provided. All log-ons are required to
   have passwords. Automatic terminal log-off from the system upon loss of
   carrier or inactivity on a terminal for a user definable period of time
   should be provided.

DI-7.13 ADDITIONAL ITEMS WHICH NEED TO BE PROVIDED ARE:

   Training; (user and system administrator); documentation; spare parts
   requirements; tools, test sets and maintenance supplies list; preventive
   maintenance intervals (after warranty) [CONFIDENTIAL PORTION OMITTED]

DI-8     TRAFFIC DATA COLLECTION DESCRIPTION

A data collection NOS will be used by centre switching engineers to review the
traffic patterns and administrative data. The system must operate on a real time
basis, along with batch analysis capabilities and be able to collect, store and
format large quantities of data into user friendly format.

DI-8.1   INTERFACE TO USERS

   A workstation providing switch data with the capabilities of easily
   manipulating and formatting data is required. A printer is also a
   requirement.

                                       94
<PAGE>
   Data needed for determining busy hour, busy season and capabilities for each
   switch component must be captured. Data must be available on-line for
   [CONFIDENTIAL PORTION OMITTED] Archiving the data to tape and restoring to
   on-line from tape should be available at the user's request.

DI-8.2   OPERATION AND MAINTENANCE

   The system should be designed so a minimal level of manpower will be required
   for maintenance, operation and system integrity.

DI-8.3   INTERFACE STANDARDS

   All interfaces utilised in the system must have an open published
architecture.

DI-8.4   RECOVERY PLAN

   The supplier must provide a detailed plan for recovery from a total disaster
   (i.e. fire, flood). This should include data to be stored off premise,
   emergency contacts, approximate time for hardware and baseline software to be
   available and a list of items which need to be recovered manually instead of
   through backup data.

DI-8.5   PERFORMANCE MEASUREMENT

   The system must have the ability to store and manipulate switch component
   data plus traffic measurements (Usage, peg count, overflow, % capacity).

   Formatting of measurement data onto necessary reports should be flexible and
dependent upon user's needs.

   The supplier should detail all measurement data available by the system.

DI-8.6   ON-LINE HELP/DOCUMENTATION

   The system should provide context sensitive help from any screen. Users
   should be able to tailor help data to include their own notes.

DI-8.7   SYSTEM SECURITY

   Log-on/password levels of security with password ageing should be provided.
   All log-ons are required to have passwords. Automatic terminal log-off from
   the system should be provided.

DI-8.8 ADDITIONAL ITEMS WHICH NEED TO BE PROVIDED ARE:

   Training; (user and system administrator); documentation; spare parts
   requirements; tools, test sets and maintenance supplies list; preventive
   maintenance intervals (after warranty) [CONFIDENTIAL PORTION OMITTED]

DI-9     NOC OPERATIONAL SUPPORT SYSTEMS

<TABLE>
<CAPTION>
- -----------------------------------------------------------------------------------------------------
    SWITCH MONITORING     TRAFFIC DATA COLLECTION   INTERCONNECT (ACCESS)      SUBSCRIBER BILLING
        ANALYSIS                                           BILLING
- -----------------------------------------------------------------------------------------------------
<S>                       <C>                       <C>                        <C>

                                   [CONFIDENTIAL PORTION OMITTED]



- -----------------------------------------------------------------------------------------------------
</TABLE>

                                       95
<PAGE>
EXHIBIT E         FINANCING

This Exhibit E is attached to and made part of that certain General Purchase
Agreement dated 1 March 1993 ("Agreement"), by and between Customer as defined
in the Agreement ("Customer") and Northern Telecom Europe Limited ("Supplier").

This Exhibit E to the General Purchase Agreement consists of the following
documents:

Letter         The following appendices are modified as set forth in the letter
               dated 1st March 1993 from J E Bishop to Tina A Wright.

Appendix 1     Maximum Aggregate Purchases under GPA that may be financed under
               Lease Purchase Agreement

Appendix 2     Form of Lease Purchase Agreement for TeleWest Controlled
               Partnerships

Appendix 3     Form of Lease Purchase Agreement for Windsor Television Limited

Appendix 4     Form of Lease Purchase Agreement for Cable London plc and
               Birmingham Cable Limited.







                                       96



                                                                EXHIBIT 10.60



                 "[CONFIDENTIAL PORTION OMITTED]" INDICATES THAT
           INFORMATION HAS BEEN OMITTED AND FILED SEPARATELY WITH THE
           COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT


                                 AMENDMENT NO. 1

                            TO THE TELEWEST GROUP GPA


This Amendment No. 1, dated 1 July 1993, shall be deemed effective as of the
first day of April 1993, by and between the companies listed under Exhibit A in
the General Purchasing Agreement (GPA), dated 1 March 1993 ("Customer"), and
Northern Telecom Europe Limited, having its registered office at Stafferton Way,
Maidenhead, Berks SL6 1AY acting through its Public Switching Division at
Meridian House, 134 Bridge Road, Maidenhead, Berks SL6 8DJ ("Supplier").



                                    RECITALS

WHEREAS, Customer and Supplier entered into a General Purchasing Agreement dated
the first day of March 1993; and

WHEREAS, Customer and Supplier agree to amend the GPA pursuant to the terms and
conditions set forth herein.

                                    AGREEMENT

In consideration of the mutual promises and advantages to the parties, the
parties incorporate by reference and agree to the accuracy of the above recitals
and further agree as follows:



(C)      COPYRIGHT NORTHERN TELECOM EUROPE LIMITED 1993          PROPOSAL 2/399

         Copyright in the whole and every part                        July 1993
         of this document is owned by NT Europe Ltd

<PAGE>
TITLE PAGE is hereby amended as follows:

The contract name is hereby amended to include Encom Cable TV &
Telecommunications Ltd; and

the contract number of "NTE-GPA0001" is hereby added; and

a proprietary statement is hereby added, now stated as follows:


- --------------------------------------------------------------------------------
                                 TELEWEST GROUP

                     ENCOM CABLE TV & TELECOMMUNICATIONS LTD

                          GENERAL PURCHASING AGREEMENT


                                   NTE-GPA0001



                                   PROPRIETARY

           THE INFORMATION CONTAINED HEREIN SHOULD NOT BE DISCLOSED TO
                UNAUTHORISED PERSONS, IT IS INTENDED FOR USE BY
           AUTHORISED REPRESENTATIVES OF THE PARTIES TO THIS DOCUMENT
- --------------------------------------------------------------------------------

INTRODUCTION, PAGE 1 is hereby amended as follows:

Northern Telecom's registered address is hereby corrected from "IB Portland
Place" to Stafferton Way, Maidenhead, Berks SL6 1AY, now stated as follows:

1        INTRODUCTION

This Agreement, dated 1 March 1993, is made by and between the companies listed
under Exhibit A attached hereto and by this reference incorporated into this
Agreement and identified herein ("Customer"), and Northern Telecom Europe
Limited, having its registered office at STAFFERTON WAY, MAIDENHEAD, BERKS SL6
1AY acting through its Public Switching Division at Meridian House, 134 Bridge
Road, Maidenhead, Berks SL6 8DJ ("Supplier").

In consideration of the promises, mutual covenants and agreements contained
herein, the receipt and sufficiency of which are hereby acknowledged, Customer
and Supplier agree as follows:


CLAUSE 1.1.6, PAGE 1 is hereby modified as follows:

The definition of "Consortium" is hereby revised to include Encom Cable TV &
Telecommunications Ltd, now stated as follows:


                                       2
<PAGE>
1.1.6. "Consortium" for the purposes of this Agreement means all Customers
listed under Exhibit A subject to Clause 2.40 entitled 'Several Liability' and
all actions to be taken by Consortium hereunder shall be taken RESPECTIVELY BY:
1)TELEWEST COMMUNICATIONS GROUP LIMITED ("TELEWEST") AS THE REPRESENTATIVE FOR
THOSE CUSTOMERS LISTED AS TELEWEST WHOLLY OWNED FRANCHISES UNDER SECTION 1,
EXHIBIT A AND FOR THOSE CUSTOMERS LISTED AS LIMITED COMPANIES UNDER SECTION 2,
EXHIBIT A; AND 2) ENCOM CABLE TV AND TELECOMMUNICATIONS LTD ("ENCOM") AS THE
REPRESENTATIVE FOR THOSE CUSTOMERS LISTED AS ENCOM WHOLLY OWNED FRANCHISES UNDER
SECTION 3, EXHIBIT A.



CLAUSE 2.1, PAGE 3 is hereby modified as follows:

The term of the contract is hereby extended to 31 December 1998, now stated as
follows:


2.1.     TERM

This Agreement shall commence on 31 January 1993, and expire on 31 DECEMBER
1998. The parties may extend the term or any subsequent term by executing a
separate written agreement of extension prior to the expiration of the term.



CLAUSE 2.7.4, PAGE 6 is hereby amended as follows: The word "of" is hereby
changed to "or", now stated as follows:

  2.7.4        Payment whether by finance OR otherwise shall not be considered
               Acceptance of non conforming Purchases.



EXHIBIT E, APPENDIX 1, PAGE 104 is hereby amended to reflect TeleWest franchises
only for Appendix 1, now stated as follows:


                         [Confidential Portion Omitted]


CLAUSE 2.8, PAGE 6 is hereby amended as follows:

Minor changes are made to the text of this clause, now stated as follows:


2.8      FINANCING

Supplier agrees to provide financing to those Customers listed in Exhibit E,
Appendix 1, together with the amounts of their individual facilities for up to
[Confidential Portion Omitted] in aggregate Purchases under this Agreement
pursuant to Lease Purchase Agreements substantially in the form of Exhibit E,
Appendix 2 in the case of all Customers under common control with TeleWest;
substantially in the form of Exhibit E, Appendix 3 in the case of Birmingham
Cable Limited and Cable London plc; AND substantially in the form of Exhibit E,


                                       3
<PAGE>
Appendix 4 in the case of Windsor Television Limited. THE RELEVANT FINANCING
AGREEMENT shall be entered into by Supplier and each Customer that elects to
finance any Purchases prior to such Customer placing its initial Order
hereunder. In the event that a Customer elects to finance Purchases in
accordance with such Lease Purchase Agreement, Supplier shall issue invoices for
such Purchases in accordance with Clause 2.7, except that such invoices shall be
for the full amount due, and such invoices shall be deemed to be paid upon
inclusion of the amounts covered thereby in an Equipment Schedule under a Lease
Purchase Agreement. The financing of Purchases pursuant to a Lease Purchase
Agreement shall be without prejudice to the rights of Customer under this
Agreement with respect to such Purchases, including without limitation
Customer's right not to accept non-conforming Purchases.



CLAUSE 2.9.3, PAGE 7 is hereby amended as follows:
The word "increase" is hereby changed to "decrease", now stated as follows:

  2.9.3        If Supplier's published prices, rates, charges or fees on the
               Shipment Date of Product(s), and/or Software and/or the
               Commencement Date for Services are less than any prices, rates,
               charges or fees set forth in the Order(s) or elsewhere, Customer
               shall have the benefit of the lesser prices, rates, charges or
               fees. Supplier shall notify Customer in writing of the effective
               date of any DECREASE.



CLAUSE 2.48, PAGE 19 is hereby amended as follows:

Encom are hereby added as a party to be notified with all correspondence
required under this Agreement, now stated as follows:


2.48     NOTICES

Where written notices, demands, or other communications are required under this
Agreement to be made in writing, they shall be deemed duly given when made in
writing and delivered in hand, or upon receipt when properly addressed by
Recorded or Registered Post or other delivery service to the following
addresses:

      CUSTOMER :

      TeleWest Communications Group Ltd. ENCOM CABLE TV & TELECOMMUNICATIONS LTD
      Attn : Contract Manager            ATTN : SENIOR MANAGER-NETWORK SWITCHING
      Materials Management Department    5 LIMEHARBOUR
      Unit 1, Genesis Business Park      ENCOM HOUSE 
      Woking, Surrey GU21 5RW            LONDON E14 9TY



                                       4
<PAGE>
         SUPPLIER :

                           Commercial Manager; Cable Telephony
                           Northern Telecom Europe Limited
                           Public Switching Division
                           Northern Telecom House
                           St. Cloud Way
                           Maidenhead, Berks SL6 8XB

Addresses may be changed by written notices to the parties.



CLAUSE 3.2.4, PAGE 20 is hereby amended as follows:
The word "ordered" is hereby capitalised as the defined term "Ordered", now 
stated as follows:

  3.2.4        Customer reserves the right to stop shipment of Ordered 
               Product(s) if it fails the inspection
               referred to in the immediately preceding paragraph.


CLAUSE 3.3.2, PAGE 20 is hereby amended as follows:
The word "parties" is hereby changed to "party's", now stated as follows:

  3.3.2        Supplier shall promptly furnish for Order(s) of Product(s),
               standard site preparation Specifications, if applicable, in such
               detail to ensure that Product(s) can be properly installed. If
               any alterations or modifications required in site preparation or
               manufacture are attributable to either party's incomplete or
               erroneous Specifications, such alterations and/or modifications
               shall be made at the erring PARTY'S expense.



CLAUSE 3.8, PAGE 22 is hereby amended as follows:

Supplier's Products will not be marked with Shipment Date, so the words "if
applicable" and "shipment or" are hereby deleted, now stated as follows:

3.8      MARKING

   Product(s) shall be marked by Supplier, at no additional charge, with
   Supplier's model NUMBER, SERIAL NUMBER, AND DATE OF MANUFACTURE.



CLAUSE 3.12.1.2, PAGE 23 is hereby amended as follows:

"Delivery Date" is hereby changed to "commencement of Acceptance Period", now
stated as follows:

  3.12.1.2     Supplier shall provide Documentation pertaining to Software NO 
               LATER THAN three (3) weeks
               PRIOR TO COMMENCEMENT OF THE ACCEPTANCE PERIOD at no additional
               charge. Documentation shall comply with Customer's Specifications
               and the highest standards of the industry with respect to
               content, size, legibility and reproducibility.


                                       5
<PAGE>
EXHIBIT A, PAGE 30 is hereby amended as follows:

Section 3 is hereby added to incorporate Encom franchises as Customers, now
stated as follows:

EXHIBIT A         CUSTOMERS

This Exhibit A is attached to and made part of that certain General Purchase
dated 1 March 1993 ("Agreement"), by and between Customer as defined in the
Agreement ("Customer") and Northern Telecom Europe Limited ("Supplier").





                                       6
<PAGE>
PARTNERSHIPS AND REGISTERED ADDRESSES TABLE

<TABLE>
<CAPTION>
      FRANCHISE                 FRANCHISE HOLDER                                          REG. NO.
- -------------------------------------------------------------------------------------------------------
1.    TELEWEST WHOLLY OWNED FRANCHISES
- -------------------------------------------------------------------------------------------------------
<S>                             <C>                                                      <C>
      Avon                      Avon Cable Joint Venture
      -------------------------------------------------------------------------------------------------
      Croydon, Kingston and     London South Cable Partnership
      Richmond and Merton and
      Sutton
      -------------------------------------------------------------------------------------------------
      North Thames Estuary      United Artists Communications (Thames Estuary)
      South Thames Estuary      Partnership
      -------------------------------------------------------------------------------------------------
      Edinburgh                 United Artists Communications (Scotland) Venture
      -------------------------------------------------------------------------------------------------
      Tyneside                  United Artists Communications (North East) Partnership
- -------------------------------------------------------------------------------------------------------
2.    LIMITED COMPANIES
- -------------------------------------------------------------------------------------------------------
      Birmingham                Birmingham Cable Limited                                     2170379
                                                                                          -------------
      -------------------------------------------------------------------------------------------------
      The registered office          CABLE PHONE HOUSE,
      for the above listed           SMALL HEATH BUSINESS PARK,
      company is:                    TALBOT WAY, SMALL HEATH,
                                     BIRMINGHAM.  B10 OHJ
      -------------------------------------------------------------------------------------------------
      Camden, Enfield,          Cable London plc                                             1794264
      Hackney and Islington,
      Haringey
      ------------------------------------------------------------------------------------
      The registered office          100 CHALK FARM ROAD
      for the above listed           LONDON  NW1 8EH
      company is:
      -------------------------------------------------------------------------------------------------
      Hillingdon                Windsor Television Limited                                   1745542
      Windsor
      -------------------------------------------------------------------------------------------------
      The registered office          CABLE HOUSE
      for the above listed           WATERSIDE DRIVE
      company is:                    LANGLEY, BERKSHIRE.  SL3 6EZ
      -------------------------------------------------------------------------------------------------

                                TeleWest Communications Group Limited                        2514287
                                -----------------------------------------------------------------------

      Cotswolds                 United Artists Communications (Cotswolds) Limited            1743081
- -------------------------------------------------------------------------------------------------------


                                       7
<PAGE>
- -------------------------------------------------------------------------------------------------------
3.    ENCOM WHOLLY OWNED FRANCHISES
      -------------------------------------------------------------------------------------------------
      TOWER HAMLET/NEWHAM       ENCOM CABLE TV AND TELECOMMUNICATIONS LTD
      GREATER LONDON EAST                                                                      1870928
      HAVERING
      WALTHAM FOREST
      DARTFORD
      EPPING FOREST
- -------------------------------------------------------------------------------------------------------
      THE REGISTERED OFFICE          4 CARLTON GARDENS
      FOR THE ABOVE LISTED           PALL MALL
      COMPANY IS:                    LONDON SW1Y 5AA
- -------------------------------------------------------------------------------------------------------

</TABLE>


EXHIBIT C, RECITALS, PAGE 34 is hereby modified as follows:

The "RFP" date is hereby revised from November 1993 to November 1992, now stated
as follows:

WHEREAS, Customer issued Request for Proposal entitled "Switch/RFP/001" dated
November 1992, (the "RFP") to Supplier soliciting a proposal for Switches
(defined herein);

CLAUSE C4.1, PAGE 35 is hereby amended as follows:

Customer's Purchase Objective is hereby revised from [Confidential Portion
Omitted] lines to [Confidential Portion Omitted] lines; and

the RLCM price per line for [Confidential Portion Omitted] lines is hereby
revised from [Confidential Portion Omitted] to [Confidential Portion Omitted],
now stated as follows:

  C4.1         Supplier's fully discounted net price per Switch line shown in
               the table below, includes the initial installations and the first
               two (2) extensions per Switch:

PRICE PER LINE BASED UPON PURCHASE OBJECTIVE


                         [Confidential Portion Omitted]


                                LINES         LINES         LINES         LINES


PURCHASE OBJECTIVE

- ------------------------------
HOST PRICE PER LINE:

- ------------------------------
SNSE PRICE PER LINE:

- ------------------------------
RSC PRICE PER LINE:                        [Confidential Portion Omitted]

- ------------------------------
RLCM PRICE PER LINE:

- ------------------------------
SRU PRICE PER LINE:


                                       8
<PAGE>
CLAUSE C5.1, PAGE 37 is hereby amended as follows:

Related Mercury owned equipment is hereby added to the definition of Remote
Concentrator Units; and

the amount of RCU credit for Customer is hereby established at [Confidential
Portion Omitted] for TeleWest in Clause C5.1.1 and at [Confidential Portion
Omitted] for Encom in Clause C5.1.2, now stated as follows:

C5.1           Supplier shall credit the Customer with a purchase credit based
               upon amounts obligated to be paid or payable by Customer to
               Mercury Communications Limited (Mercury) to compensate Mercury
               for its stranded capital investment in Remote Concentrator Units
               AND RELATED EQUIPMENT ("RCU's") resulting from Customer's
               DISCONTINUATION of service from SUCH MERCURY OWNED EQUIPMENT
               installed in the network. [Confidential Portion Omitted]



CLAUSE C5.1.1 is hereby added to establish the RCU credit for TeleWest, now
stated as follows:

       C5.1.1        [Confidential Portion Omitted]



CLAUSE C5.1.2 is hereby added to establish the RCU credit for Encom, now stated
as follows:

        C5.1.2         [Confidential Portion Omitted]


CLAUSE C5.2, PAGE 37 is hereby deleted and replaced in its entirety, now stated
  as follows: 

  C5.2 SUPPLIER SHALL PROVIDE FOR THOSE CUSTOMERS LISTED IN SECTION
  3 OF EXHIBIT A, THE FOLLOWING PRODUCTS AT [Confidential Portion Omitted]

       C5.2.1        [Confidential Portion Omitted]

       C5.2.2        [Confidential Portion Omitted]


CLAUSE C6.1, PAGE 37 is hereby amended as follows:

The references to Software Features itemised at the end of Clause C6.1 are
hereby deleted and are now identified in Attachment K, Issue 2, now stated as
follows:


                                       9
<PAGE>
C6       INVOICING AND PAYMENT

  C6.1         Should Customer choose not to finance Purchases pursuant to
               Clause 2.8, then Supplier shall invoice Customer for Products,
               Software and Services pursuant to Clause 2.7 of this Agreement.
               As an alternative payment method, at Customer's option, Supplier
               shall invoice Customer for Software on a per Working Line basis.
               The price per line to be invoiced under this option would be
               determined by reducing the per line prices in Clause C4.1 by the
               amount of Software included therein at [Confidential Portion
               Omitted] per line. The remaining price represents the Product(s)
               and Services price. Base Software would then be billed at a
               one-time rate of payment of [Confidential Portion Omitted] per
               line. This amount would be payable on a calendar quarterly basis,
               with the first payment being based on the number of Customer's
               Working Lines at the end of the first calendar quarter following
               the first Switch Acceptance. Customer will subsequently pay an
               amount equal to the increase in the number of Working Lines for
               each subsequent calendar quarter at the end of that calendar
               quarter, multiplied by [Confidential Portion Omitted]

               Customer must clearly mark on the Order if the option under this
               Clause C6.1 is required.



CLAUSE C6.4, PAGE 37 is hereby deleted and replaced in its entirety, now stated
  as follows: 

C6.4 CUSTOMER MAY DEPLOY SOFTWARE FEATURES AT [CONFIDENTIAL
  PORTION OMITTED] FOR THE PURPOSES OF
               TESTING AND FOR CUSTOMER'S INTERNAL BUSINESS, INCLUDING BUT NOT
               LIMITED TO [CONFIDENTIAL PORTION OMITTED]



CLAUSE C6.6, PAGE 38 is hereby amended as follows:

Attachment K of Supplier's Proposal is modified and hereby incorporated:
  C6.6         ADDITIONAL FEATURE SOFTWARE
               Feature Software not included in base price per line stated under
               Clause C4.1 but that is identified in ATTACHMENT K, ISSUE 2 of
               Supplier's Proposal, ATTACHED HERETO AND INCORPORATED HEREIN BY
               REFERENCE, can be purchased as follows:

       C6.6.1        The Customer may purchase Software Modules on a per Switch
                     basis, as defined and priced in Attachment K, ISSUE 2; or


CLAUSE C6.6.2, PAGE 38 is hereby amended as follows:

A price cap is defined for the Software price per line option, now stated as
follows:

                                       10
<PAGE>
       C6.6.2        The Customer may purchase Software on a price per line
                     basis, calculated on a case by case basis, according to the
                     following generic formula:

                     [Confidential Portion Omitted]
                     Where:
                     [Confidential Portion Omitted]

CLAUSE C6.6.3 is hereby added as follows:
       C6.6.3 CUSTOMER MUST CLEARLY MARK ON THE ORDER WHICH PAYMENT OPTION IS
SELECTED.



CLAUSE C7.1, PAGE 38 is hereby amended as follows:

Reference to the original Purchase Objective of [Confidential Portion Omitted]
Working Lines" is replaced with "Purchase Objective", now stated as follows:

  C7.1         It is the intent of the parties listed as Customer under Exhibit
               A in the aggregate to place Orders for Products, Software and
               Services in the amount OF THE PURCHASE OBJECTIVE. SUCH PURCHASE
               OBJECTIVE MAY CHANGE FROM TIME TO TIME IN ACCORDANCE WITH CLAUSE
               7.2.



CLAUSE C7.1.1 is hereby added to enumerate Customer's initial Purchase Objective
as follows:

  C7.1.1       CUSTOMER'S INITIAL PURCHASE OBJECTIVE IS DETAILED BELOW ("INITIAL
               PURCHASE OBJECTIVE")

                         [Confidential Portion Omitted]


CLAUSE C7.1.2 is hereby added to state the Customers' commitment as follows:

  C7.1.2       WITHOUT PREJUDICE TO ITS RIGHTS UNDER CLAUSE 2.3 OF THE
               AGREEMENT, CUSTOMER AGREES TO PLACE ORDERS FOR ITS INITIAL
               PURCHASE OBJECTIVE ITEMISED IN CLAUSE 7.1.1 DURING THE TERM OF
               THE AGREEMENT, PROVIDED THAT;

       C7.1.2.1      CUSTOMER IS NOT OBLIGATED TO PURCHASE LINES IN EXCESS OF
                     ITS ACTUAL REQUIREMENTS, AS REFLECTED IN THE REVISED
                     PURCHASE OBJECTIVE FIGURES PRODUCED IN ACCORDANCE WITH
                     CLAUSE C7.2; AND

       C7.1.2.2      AT CUSTOMER'S DISCRETION, SUPPLIER REMAINS COMPETITIVE IN
                     THE MARKET WITH REGARD TO PRICE AND SUPPORT FOR ITS 
                     PRODUCTS; AND

       C7.1.2.3      AT CUSTOMER'S DISCRETION, SUPPLIER REMAINS COMPETITIVE IN
                     THE MARKET WITH REGARD TO SOFTWARE FEATURE AND SWITCH
                     FUNCTIONALITY OFFERINGS TO CUSTOMER.


                                       11
<PAGE>
CLAUSE C7.2, PAGE 38 is hereby amended as follows:
The method of revising the Purchase Objective every six (6) months via a notice
is hereby added, now stated as follows:

  C7.2         In addition to the establishment of thE Initial Purchase
               Objective, the parties listed as Customer under Exhibit A agree
               to update, each six (6) months beginning from the effective date
               of this Agreement, the Purchase Objective with a cumulative
               forecast covering the term of this Agreement. Such forecasts
               shall identify the actual locations and numbers of lines for
               Switches already procured during the term of this Agreement and
               the proposed locations and numbers of lines for new Switches to
               yet be procured from Supplier over the remaining term of this
               Agreement, in order to determine the appropriate price per line
               under Clause C4.1. SUCH PURCHASE OBJECTIVE REVISIONS SHALL
               AUTOMATICALLY SUPERSEDE PREVIOUS PURCHASE OBJECTIVES WHEN ISSUED
               AS A NOTICE IN ACCORDANCE WITH CLAUSE 2.48. EXCEPT AS PROVIDED IN
               CLAUSE 7.1.2, it is understood and agreed that such forecasts are
               provided for Supplier's use in planning, and do not represent
               commitments on the part of Customer to procure such Switches, and
               shall be utilised to determine the applicable price to be applied
               under Clause C4.1 for the following six (6) months Order period.



CLAUSE C7.3, PAGE 39 is hereby deleted and replaced in its entirety, now stated
   as follows: C7.3 SHOULD ADDITIONAL CUSTOMERS FORMALLY ADVISE SUPPLIER, PRIOR

   TO 1 APRIL 1993, OF THEIR INTENT
               TO BE INCLUDED WITHIN THIS AGREEMENT AND SUBSEQUENTLY CONFIRM
               SUCH INTENT BY SIGNING THIS AGREEMENT, THEN THE PRICE PER LINE
               APPLIED TO ORDERS RECEIVED BY SUPPLIER BETWEEN 1 APRIL 1993 AND
               THE ACTUAL DATE OF SIGNATURE OF THE AGREEMENT BY SUCH CUSTOMERS,
               SHALL BE BASED UPON THE REVISED PURCHASE OBJECTIVE FORMULATED
               FROM THE INCLUSION OF SUCH ADDITIONAL CUSTOMERS. ORDERS RECEIVED
               BY SUPPLIER PRIOR TO 1 APRIL 1993 SHALL NOT RECEIVE RETROSPECTIVE
               PRICE ADJUSTMENTS FROM THE INCLUSION OF SUCH ADDITIONAL
               CUSTOMERS.


CLAUSE C12.1, PAGE 40 is hereby amended as follows:

[Confidential Portion Omitted]

  C12.1        [Confidential Portion Omitted]


CLAUSE C12.2, PAGE 40 is hereby amended as follows:


[Confidential Portion Omitted]


SECOND CLAUSE 12.2.1, PAGE 40 is hereby amended as follows:

The Clause number is hereby revised from "12.2.1" to "12.2.2".



                                       12
<PAGE>
CLAUSE C13.1 is hereby amended as follows:

The quantity of DASS-II signalling convertors provided by Supplier at no
additional charge is hereby changed from 20 ports per Switch to ten (10) 2Mbps
ports per Switch, now stated as follows:

  C13.1        Supplier SHALL PROVIDE AND SUPPORT signalling converters which
               convert Digital Private Network Signalling System ("DPNSS")
               circuits to Digital Access Signalling System ("DASS-II")
               functionality. SUPPLIER SHALL PROVIDE SUCH SIGNALLING CONVERTERS
               TO SUPPORT TEN (10) 2MBPS PORTS PER SWITCH AT NO ADDITIONAL
               CHARGE. Customer and the Supplier agree to work together to
               maximise the deployment of DPNSS in all franchises. In addition,
               Supplier agrees to develop a sales incentive programme BY 31
               DECEMBER 1993 that will motivate Customer's sales force to sell
               DPNSS as an alternative customer service offering to DASS II.



CLAUSE C13.2 is hereby added as follows:

  C13.2        SUPPLIER SHALL PROVIDE DPNSS AT [Confidential Portion Omitted]
               PER 2MBPS PORT. THIS PRICE INCLUDES THE 2MBPS INTERFACE,
               SIGNALLING PRODUCT, DPNSS SOFTWARE AS DEFINED IN ATTACHMENT K,
               ISSUE 2, ENGINEERING, INSTALLATION AND COMMISSIONING, AND PROJECT
               MANAGEMENT. THE INITIAL ORDER BY CUSTOMER FOR SUCH 2MBPS PORTS
               SHALL BE NO LESS THAN A MINIMUM QUANTITY OF SIXTEEN
               (16) PORTS PER SWITCH.



CLAUSE C16.1, PAGE 40 is hereby deleted and replaced in its entirety, now stated
  as follows: C16.1 CUSTOMER SHALL PROCURE AND SUPPORT THE CUTOVER REQUIREMENTS
  FOR SUBSCRIBER PULSE METERING
               ("SPM") HARDWARE.



CLAUSE C16.2 is hereby added, as follows:

  C16.2        SUPPLIER SHALL RESEARCH AND REPORT TO CUSTOMER WITHIN THIRTY (30)
               DAYS OF THE LATEST SIGNATURE OF THIS DOCUMENT A DEFINITIVE PLAN
               FOR DEVELOPING AND IMPLEMENTING SPM HARDWARE AND SOFTWARE
               APPLICATIONS FOR CUSTOMER. SUCH PLAN SHALL INCLUDE MILESTONE
               DATES FOR DEVELOPMENT, VERIFICATION OFFICE INTRODUCTIONS, AND
               IMPLEMENTATION FOR SPM PRODUCT PHASES, AS WELL AS PRICES TO THE
               EXTENT POSSIBLE. CUSTOMER AGREES TO PARTICIPATE WITH SUPPLIER TO
               THE EXTENT NECESSARY FOR PROVIDING RELEVANT INFORMATION, SUCH AS
               MARKETING FORECASTS.



CLAUSE C16.3 is hereby added, as follows:

  C16.3        SUBJECT TO A COMMERCIAL AGREEMENT WITH CUSTOMER, SUPPLIER SHALL
               DEVELOP AND SUPPORT SUBSCRIBER PULSE METERING ("SPM") HARDWARE
               AND SOFTWARE SUITABLE FOR INSTALLATION AND TESTING IN A
               VERIFICATION OFFICE OF CUSTOMER'S CHOOSING BY A MUTUALLY AGREED
               DATE.


                                       13
<PAGE>
CLAUSE C21.7, PAGE 43 is hereby amended as follows:

The word "ordered" is hereby capitalised as the defined term "Ordered", now
  stated as follows: C21.7 Supplier agrees to provide Customer with the
  following information, in writing, each time a
               new Software generic is released and Ordered by Customer :



CLAUSE C24.1, PAGE 44 is hereby amended as follows:


                         [Confidential Portion Omitted]



CLAUSE C32.1, PAGE 46 is hereby amended as follows:

British Telecom are hereby added for C7 certification and PTO interconnection
within the defined schedule; and

an additional week is hereby added to the defined schedule for certification and
interconnection when BT and Mercury are both required, now stated as follows:

  C32.1        The Supplier will act on Customer's behalf and provide the
               necessary Technical Support required to obtain C7 certification
               and PTO interconnection with Mercury AND BRITISH
               TELECOMMUNICATIONS PLC ("BT"), AS REQUIRED BY CUSTOMER. SHOULD
               SUCH CERTIFICATION AND INTERCONNECTION BE REQUIRED OF BOTH BT AND
               MERCURY IN ANY CUSTOMER LOCATION, SUPPLIER WILL BE ALLOWED ONE
               (1) ADDITIONAL WEEK IN THE SCHEDULE STATED IN CLAUSE C28.1,
               PROVIDED THE INTER-CONNECT SEQUENCE IS BT FOLLOWED BY MERCURY.
               CUSTOMER AND SUPPLIER WILL MUTUALLY AGREE UPON THE PHASING OF
               SUCH CERTIFICATION AND INTERCONNECTION SCHEDULING WHEN BOTH BT
               AND MERCURY ARE REQUIRED BY CUSTOMER.



                                       14
<PAGE>
  EXHIBIT C APPENDIX II, PAGE 54 is hereby amended as follows:

The paragraph entitled DPNSS under the heading ADDITIONAL ITEMS is hereby
deleted in its entirety and replaced by Clause C13.2, contained herein.



EXHIBIT C APPENDIX II is hereby amended as follows:

Section 3 is hereby added to identify the critical spares included in the price
per line, as stated in Clause C15.1, now stated as follows:

EXHIBIT C                  APPENDIX II


CII-3    CRITICAL SPARES


         CII-3.1           CRITICAL SPARES - 15K SWITCH SIZE
         Following are the spare equipment which will be provided by Supplier
         per Clause C15.1 for a 15,000 line Switch.

         EQUIPMENT DESCRIPTION              PRODUCT CODE      QTY

          +/- 5V POWER CONVERTED            NTDX15AA          1
          INTRA FBUS A TERMIN CPNTA         NTEX20AA          1
          INTRA FBUS B TERMIN CPNTA         NTEX20BA          1
          IPF INTEGRATED PROC & FBUS        NTEX22BA          1
          POWER CONV +/-5V 12 24V           NT1X78AA          1
          MCCS CUSTOM ANN CP                NT1X79AA          1
          ENH MULTIPROTOCOL CTL CP          NT1X89BA          1
          4 CHAN DGTL MF RCVR A-LAW         NT2X48CA          1
          A-LAW TTU DIGITAL FILTER          NT2X56BA          1
          SD CARD I                         NT2X57AA          1
          GROUP CODEC MERCURY 250 CP        NT2X59EA          1
          +-5/12V PWR CONVERTER 50A         NT2X70AE          1
          TRANSMISSION TERM TRK             NT2X71AA          1
          CONF CKT E/W TBI TONE CP          NT3X67BB          1
          TONE GEN - CALL WAITING           NT3X68BC          1
          PCM 30 TRUNK INTERFACE CP         NT6X27AC          1
          PCM 30 SIGNALLING CP              NT6X28AA          1
          DS30 NETWORK INTERFACE CP         NT6X40AC          1
          XPM DS512 LINK CONTROL CP         NT6X40CA          1
          XPM DS512 LINK CARD CP            NT6X40DA          1
          SPEECH BUS FORMAT (TURKEY)        NT6X41AB          1
          CHANNEL SUPERVISION MGS CP        NT6X42AA          1
          TIME SWITCH CP WITH (EBI)         NT6X44EA          1
          LGC/DTC PROCESSOR CP              NT6X45BA          1
          SIGNAL PROCESSOR MEMORY CP        NT6X46BB          1
          MASTER PROC MEMORY PLUS CP        NT6X47AB          1
          MASTER PROC MEMORY CP             NT6X47AC          1
          DS30A LCM INTERFACE CP            NT6X48AA          1



                                       15
<PAGE>
         CII-3.1           CRITICAL SPARES - 15K SWITCH SIZE (CONTINUED)


         EQUIPMENT DESCRIPTION              PRODUCT CODE      QTY


          LCM PROCESSOR CP                  NT6X51AB          1
          INT DIGROUP CONTROL CP            NT6X52AB          1
          POWER CONVERTER 5V/15V CP         NT6X53AA          1
          DPNSS SIGNALLING TERM CP          NT6X66CA          1
          SIGNALLING TERM BUFFER CP         NT6X67AA          1
          SIGNALLING TERM INTERFACE         NT6X68AC          1
          STI WITH TERMINATOR               NT6X68AD          1
          MSG PROTOCOL & DOWNLD CP          NT6X69LB          1
          CPU PORT CP WITH PARITY           NT9X12AC          1
          CPU 4M BTYE DRAM ENET CP          NT9X13FA          1
          WSS CORE COMP MOD PROC CP         NT9X13MB          1
          WSSPR MS SIMPLEX PROC CARD        NT9X13NA          1
          MEMORY 24MEG CP                   NT9X14DB          1
          MAPPER CIRCUIT PACK               NT9X15AA          1
          MS 4 PORT CARD CP                 NT9X17AD          1
          MS - 32 PORT CIRCUIT PACK         NT9X17BB          1
          MS 64 - PORT CP                   NT9X17DA          1
          BUS TERMINATOR PADDLEBOARD        NT9X21AB          1
          DS30 4PORT PADDLEBOARD CP         NT9X23AA          1
          REMOTE TERM. INTERFACE CP         NT9X26AB          1
          +5VOLTS POWER CONVERTER CP        NT9X30AA          1
          -5VOLTS POWER CONVERTER CP        NT9X31AA          1
          4K X 8K X-POINT CP                NT9X35FA          1
          ENET  CLOCK & MESSAGE CP          NT9X36BA          1
          ENET DS-512 PADDLEBOARD           NT9X40BA          1
          SYSTEM LOAD MODULE SLM1A          NT9X44AC          1
          ENET DS512/DS30 INTF PADBD        NT9X45BA          1
          PARA PORT INTF PADDLEBRD          NT9X46AA          1
          MS P-BUS TERMINATOR CP            NT9X49CC          1
          T-BUS ACCESS CP                   NT9X52AA          1
          DMS BUS SYS CLOCK CP              NT9X53AC          1
          DMS-BUS EXT CLK INTF PB NA        NT9X54AC          1
          2PORT SUBRATE DS512 CPNTA         NT9X62AA          1
          SR512 4 LINK PB E/W OOB RS        NT9X62CA          1
          16 LINK DS30 MS PB                NT9X69BA          1
          LMS-FBUS RATE ADAPTER CP          NT9X73BA          1
          F-BUS REPEATER CP                 NT9X74CA          1
          STP SIGNALLING TERMINAL CP        NT9X76AA          1
          STP V.35 INTERFACE CPNTA          NT9X77AA          1
          F-BUS EXT CP E/W TERMINAT         NT9X79BA          1
          DUAL PORT MESS CONT CP            NT9X86AA          1
          STOR DEV POW CON +5,+12           NT9X91AA          1



                                       16
<PAGE>
         CII-3.2           CRITICAL SPARES - 30K SWITCH SIZE

         Following are the spare equipment which will be provided by Supplier
         per Clause C15.1 for a 30,000 line Switch.

         EQUIPMENT DESCRIPTION              PRODUCT CODE      QTY

          INTRA FBUS A TERMIN CPNTA          NTEX20AA                   1
          INTRA FBUS B TERMIN CPNTA          NTEX20BA                   1
          IPF INTEGRATED PROC & FBUS         NTEX22BA                   1
          POWER CONV +/-5V 12 24V            NT1X78AA                   1
          MCCS CUSTOM ANN CP                 NT1X79AA                   1
          ENH MULTIPROTOCOL CTL CP           NT1X89BA                   1
          4 CHAN DGTL MF RCVR A-LAW          NT2X48CA                   1
          A-LAW TTU DIGITAL FILTER           NT2X56BA                   1
          SD CARD I                          NT2X57AA                   1
          GROUP CODEC MERCURY 250 CP         NT2X59EA                   1
          +-5/12V PWR CONVERTER 50A          NT2X70AE                   1
          TRANSMISSION TERM TRK              NT2X71AA                   1
          CONF CKT E/W TBI TONE CP           NT3X67BB                   1
          TONE GEN - CALL WAITING            NT3X68BC                   1
          PCM 30 TRUNK INTERFACE CP          NT6X27AC                   1
          PCM 30 SIGNALLING CP               NT6X28AA                   1
          DS30 NETWORK INTERFACE CP          NT6X40AC                   1
          XPM DS512 LINK CONTROL CP          NT6X40CA                   1
          XPM DS512 LINK CARD CP             NT6X40DA                   1
          SPEECH BUS FORMAT (TURKEY)         NT6X41AB                   1
          CHANNEL SUPERVISION MGS CP         NT6X42AA                   1
          TIME SWITCH CP WITH (EBI)          NT6X44EA                   1
          LGC/DTC PROCESSOR CP               NT6X45BA                   1
          SIGNAL PROCESSOR MEMORY CP         NT6X46BB                   1
          MASTER PROC MEMORY PLUS CP         NT6X47AB                   1
          MASTER PROC MEMORY CP              NT6X47AC                   1
          DS30A LCM INTERFACE CP             NT6X48AA                   1
          LCM PROCESSOR CP                   NT6X51AB                   1
          INT DIGROUP CONTROL CP             NT6X52AB                   1
          POWER CONVERTER 5V/15V CP          NT6X53AA                   1
          DPNSS SIGNALLING TERM CP           NT6X66CA                   1
          SIGNALLING TERM BUFFER CP          NT6X67AA                   1
          SIGNALLING TERM INTERFACE          NT6X68AC                   1
          STI WITH TERMINATOR                NT6X68AD                   1
          MSG PROTOCOL & DOWNLD CP           NT6X69LB                   1
          33MHZ 88000 BRISC CPU CP           NT9X10AA                   1
          CPU PORT CP WITH PARITY            NT9X12AC                   1
          CPU (16 MHZ) CP                    NT9X13DB                   1
          CPU (16MHZ) CP                     NT9X13DC                   1
          CPU 4M BTYE DRAM ENET CP           NT9X13FA                   1
          6M MEM CP (SYNC OVERRIDE)          NT9X14BB                   1
          MEMORY 24MEG CP                    NT9X14DB                   1
          MAPPER CIRCUIT PACK                NT9X15AA                   1
          MS-4PORT CIRCUIT PACK              NT9X17AA                   1
          MS 64 - PORT CP                    NT9X17DA                   1
          DS512 PADDLEBOARD CP               NT9X20AA                   1
          ENET/MS FIBER INTERF CPNTA         NT9X20BB                   1


                                       17
<PAGE>
         CII-3.2           CRITICAL SPARES - 30K SWITCH SIZE  (CONTINUED)

         EQUIPMENT DESCRIPTION              PRODUCT CODE      QTY


          CMBUS TERMINATOR PADDLEBRD       NT9X21AA                   1
          CM SUBSYS CLOCK PDBRD            NT9X22CA                   1
          DS30 4PORT PADDLEBOARD CP        NT9X23AA                   1
          DS-30 4-PORT CPNTA (STP)         NT9X23BA                   1
          REMOTE TERM. INTERFACE CP        NT9X26AB                   1
          BRISC RTIF CPNTA                 NT9X26DA                   1
          CM PROC SH BUS EXTENDER CP       NT9X27AA                   1
          CM EXT SH BUS EXTENDER CP        NT9X27BA                   1
          +5VOLTS POWER CONVERTER CP       NT9X30AA                   1
          -5VOLTS POWER CONVERTER CP       NT9X31AA                   1
          M.S. LOAD CP                     NT9X32AA                   1
          ENET  16K X 16K X-POINT CP       NT9X35BA                   1
          ENET  CLOCK & MESSAGE CP         NT9X36BA                   1
          QUAD DS512 FIBER I/F CPNTA       NT9X40BB                   1
          ENET DS512/DS30 INTF PADBD       NT9X45BA                   1
          PARA PORT INTF PADDLEBRD         NT9X46AA                   1
          +12V POWER CONVERTER CP          NT9X47AA                   1
          MS P-BUS TERMINATOR CP           NT9X49CA                   1
          DMS BUS TRACER CP                NT9X49CB                   1
          T-BUS ACCESS CP                  NT9X52AA                   1
          MS CLOCK CP                      NT9X53AA                   1
          DMS BUS SYS CLOCK CP             NT9X53AC                   1
          DMS-BUS EXT CLK INTF PB NA       NT9X54AC                   1
          LMS-FBUS RATE ADAPTER CP         NT9X73BA                   1
          F-BUS REPEATER CP                NT9X74CA                   1
          STP SIGNALLING TERMINAL CP       NT9X76AA                   1
          STP V.35 INTERFACE CPNTA         NT9X77AA                   1
          F-BUS EXTENSION PADDLEBRD        NT9X79AA                   1
          F-BUS EXT CP E/W TERMINAT        NT9X79BA                   1
          ADVANCED ENET SPARING            NT9X35CA                   1



                                       18
<PAGE>
         CII-3.3           CRITICAL SPARES - RLCM

         Following are the spare equipment which will be provided by Supplier
per Clause C15.1 for a RLCM.

         EQUIPMENT DESCRIPTION                     PRODUCT CODE      QTY

          5V/40A POWER CONV CP                       NT2X06AB          1
          MULTI O/P PWR CONVERTER                    NT2X09AA          1
          4 CHAN DGTL MF RCVR A-LAW                  NT2X48CA          1
          A-LAW DTMF RECEIVER FOR UK                 NT2X48CC          1
          SD CARD I                                  NT2X57AA          1
          A-LAW GRP CODEC & TONES CP                 NT2X59CA          1
          +-5/12V PWR CONVERTER 50A                  NT2X70AE          1
          INC/OGT TEST TRUNK CP                      NT2X90AD          1
          8 X 8 MATRIX CP                            NT3X09BA          1
          MTU CONTROLLER CP                          NT4X97AA          1
          MTU ANALOG CARD                            NT4X98BB          1
          PCM 30 INTERFACE CP                        NT6X27AB          1
          PCM 30 TRUNK INTERFACE CP                  NT6X27AC          1
          FSP ALARM CP                               NT6X36AA          1
          LCM PROCESSOR CP                           NT6X51AB          1
          INT DIGROUP CONTROL CP                     NT6X52AB          1
          POWER CONVERTER 5V/15V CP                  NT6X53AA          1
          INT BUS INTERFACE CP                       NT6X54BA          1
          RINGING GENERATOR                          NT6X60AB          1
          LINK CONTROL CARD CP                       NT6X73BA          1
          RMM CONTROL CARD CP                        NT6X74AB          1
          ESA TONE & CLOCK CP                        NT6X75EA          1
          REMOTE ALARM PANEL CP                      NT6X77AA          1



                                       19
<PAGE>
         CII-3.4           CRITICAL SPARES - RSC

         Following are the spare equipment which will be provided by Supplier
per Clause C15.1 for a RSC.

         EQUIPMENT DESCRIPTION              PRODUCT CODE      QTY

          ISDN ENH LCME PROCESSOR CP        NTBX34BA          1
          LCMI DIGROUP CONTROL CP           NTBX35AA          1
          ISDN ENH LINE DRAWER BIC          NTBX36BA          1
          ISDN ENH L DWR PUPS CP            NTBX71AA          1
          ISDN LCME BAT/RNG ROUTER          NTBX72AA          1
          POWER CONVERTER PACK              NTMX72AA          1
          SIGNALLING PCP                    NTMX73AA          1
          32 DS30A I/F PCP                  NTMX74AA          1
          ENHANCED MATRIX PCP               NTMX75AA          1
          PROCESSOR PCP                     NTMX77AA          1
          DUAL PCM30 PACKLET                NTMX82AA          1
          QUAD FRAME CARRIER PCCP           NTMX87AA          1
          5V/40A POWER CONV CP              NT2X06AB          1
          MULTI O/P PWR CONVERTER           NT2X09AA          1
          SD CARD I                         NT2X57AA          1
          A-LAW GRP CODEC & TONES CP        NT2X59CA          1
          INC/OGT TEST TRUNK CP             NT2X90AD          1
          8 X 8 MATRIX CP                   NT3X09BA          1
          MTU CONTROLLER CP                 NT4X97AA          1
          MTU ANALOG CARD                   NT4X98BB          1
          FSP ALARM CP                      NT6X36AA          1
          FSP ALARM CP                      NT6X36AB          1
          LCM PROCESSOR CP                  NT6X51AB          1
          INT DIGROUP CONTROL CP            NT6X52AB          1
          POWER CONVERTER 5V/15V CP         NT6X53AA          1
          ISDN LCME PWR CONV +5/+15V        NT6X53CA          1
          INT BUS INTERFACE CP              NT6X54BA          1
          MSG PROTOCOL & DOWNLD CP          NT6X69LB          1
          RMM CONTROL CARD CP               NT6X74AB          1
          UNIVERSAL TONE RECEIVER CP        NT6X92CA          1



                                       20
<PAGE>
         CII-3.5           CRITICAL SPARES - SRU

         Following are the spare equipment which will be provided by Supplier
per Clause C15.1 for a SRU.

         EQUIPMENT DESCRIPTION              PRODUCT CODE      QTY

          ISDN LCM PROCESSOR CP             NTBX34CA          1
          ISDN LCM DIGROUP CTL CP           NTBX35CA          1
          ISDN ENH LINE DRAWER BIC          NTBX36BA          1
          ISDN ENH L DWR PUPS CP            NTBX71AA          1
          A-LAW GRP CODEC & TONES CP        NT2X59CA          1
          8 X 8 MATRIX CP                   NT3X09BA          1
          MTU CONTROLLER CP                 NT4X97AA          1
          MTU ANALOG CARD                   NT4X98BB          1
          PCM 30 TRUNK INTERFACE CP         NT6X27AC          1
          ARLB FSP ALARM CARD CP            NT6X36AF          1
          SRU RINGING GENERTOR (UK)         NT6X60GA          1
          LINK CONTROL CARD CP              NT6X73BA          1
          RMM CONTROL CARD CP               NT6X74AB          1
          BATTERY CHARGER CP                NT8X02AB          1
          SRU FUSE PNL & CABLE ASSY         NT8X9707          1
          SPU POWER CONVERTER CP            NT8X99AB          1




                                       21
<PAGE>
EXHIBIT C APPENDIX IV is hereby clarified as follows:

Page 77 of the GPA does not exist.
1.1







                                       22
<PAGE>
SIGNATURES

The parties intending to be legally bound have caused this Amendment to be
executed by their duly authorised representatives.



CUSTOMERS                                       SUPPLIER
- -------------------------------------           -------------------------------
TELEWEST COMMUNICATIONS GROUP LIMITED           NORTHERN TELECOM EUROPE LIMITED
- -------------------------------------           -------------------------------


- ----------------------------------              --------------------------------
authorised signature      date                  authorised signature      date

Larry Carleton                                  Pete Meldrum
- ----------------------------------              --------------------------------
print or type name of signatory                 print or type name of signatory


President and Chief Operating Officer,          TeleWest General Manager
- ----------------------------------              --------------------------------
title                                                     title




UNITED ARTISTS COMMUNICATIONS (SCOTLAND) VENTURE
     BY EDINBURGH CABLE LIMITED PARTNERSHIP, ITS GENERAL PARTNER
         BY UNITED ARTISTS CABLE TELEVISION EDINBURGH, INC., GENERAL PARTNER

              BY
                  ----------------------------------------------------------
                  authorised signature                        date

                  Larry Carleton
                  ----------------------------------------------------------
                  print or type name of signatory

                  President and Chief Operating Officer, TeleWest
                  ----------------------------------------------------------
                  title


         BY US WEST CABLE TELECOM, INC., GENERAL PARTNER

              BY
                  ----------------------------------------------------------
                  authorised signature                        date

                  Lynn Rexroth
                  ----------------------------------------------------------
                  print or type name of signatory

                  Executive Vice-President, Telecoms Services, TeleWest
                  ----------------------------------------------------------
                  title


                                       23
<PAGE>
UNITED ARTISTS COMMUNICATIONS (NORTH EAST) PARTNERSHIP
     BY TYNESIDE CABLE LIMITED PARTNERSHIP, ITS GENERAL PARTNER
         BY UNITED ARTISTS CABLE TELEVISION TYNESIDE, INC., GENERAL PARTNER

              BY
                  ----------------------------------------------------------
                  authorised signature                        date

                  Larry Carleton
                  ----------------------------------------------------------
                  print or type name of signatory

                  President and Chief Operating Officer, TeleWest
                  ----------------------------------------------------------
                  title


     BY US WEST CABLE TELECOM, INC., GENERAL PARTNER

              BY
                  ----------------------------------------------------------
                  authorised signature                        date

                  Lynn Rexroth
                  ----------------------------------------------------------
                  print or type name of signatory

                  Executive Vice-President, Telecoms Services. TeleWest
                  ----------------------------------------------------------
                  title




AVON CABLE JOINT VENTURE
     BY AVON CABLE LIMITED PARTNERSHIP, ITS GENERAL PARTNER
         BY UNITED ARTISTS CABLE TELEVISION AVON, INC., GENERAL PARTNER

              BY
                  ----------------------------------------------------------
                  authorised signature                        date

                  Larry Carleton
                  ----------------------------------------------------------
                  print or type name of signatory

                  President and Chief Operating Officer, TeleWest
                  ----------------------------------------------------------
                  title

         BY US WEST CABLE TELECOM, INC., GENERAL PARTNER

              BY
                  ----------------------------------------------------------
                  authorised signature                        date

                  Lynn Rexroth
                  ----------------------------------------------------------
                  print or type name of signatory

                  Executive Vice-President, Telecoms Services, TeleWest
                  ----------------------------------------------------------
                  title


                                       24
<PAGE>
UNITED ARTISTS COMMUNICATIONS (THAMES ESTUARY) PARTNERSHIP
     BY ESTUARIES CABLE LIMITED PARTNERSHIP, GENERAL PARTNER
         BY UNITED ARTISTS CABLE TELEVISION ESTUARIES, INC., GENERAL PARTNER

              BY
                  ----------------------------------------------------------
                  authorised signature                        date

                  Larry Carleton
                  ----------------------------------------------------------
                  print or type name of signatory

                  President and Chief Operating Officer, TeleWest
                  ----------------------------------------------------------
                  title


         BY US WEST CABLE TELECOM, INC., GENERAL PARTNER

              BY
                  ----------------------------------------------------------
                  authorised signature                        date

                  Lynn Rexroth
                  ----------------------------------------------------------
                  print or type name of signatory

                  Executive Vice-President, Telecoms Services, TeleWest
                  ----------------------------------------------------------
                  title




LONDON SOUTH CABLE PARTNERSHIP
     BY UNITED CABLE (LONDON SOUTH) LIMITED PARTNERSHIP, GENERAL PARTNER
         BY UNITED ARTISTS CABLE TELEVISION UK. INC., GENERAL PARTNER

              BY
                  ----------------------------------------------------------
                  authorised signature                        date

                  Larry Carleton
                  ----------------------------------------------------------
                  print or type name of signatory

                  President and Chief Operating Officer, TeleWest
                  ----------------------------------------------------------
                  title


         BY US WEST CABLE TELECOM, INC., GENERAL PARTNER

              BY
                  ----------------------------------------------------------
                  authorised signature                        date

                  Lynn Rexroth
                  ----------------------------------------------------------
                  print or type name of signatory

                  Executive Vice-President, Telecoms Services, TeleWest
                  ----------------------------------------------------------
                  title


                                       25
<PAGE>
CABLE LONDON PLC


- --------------------------------------------
authorised signature                date

Gerald Campbell
- --------------------------------------------
print or type name of signatory

Managing Director, Cable London plc
- --------------------------------------------
title




BIRMINGHAM CABLE LIMITED


- --------------------------------------------
authorised signature                date

Edward Campbell
- --------------------------------------------
print or type name of signatory

Managing Director, Birmingham Cable Limited
- --------------------------------------------
title



WINDSOR TELEVISION LIMITED

- --------------------------------------------
authorised signature                date

Phillipe Galteau
- --------------------------------------------
print or type name of signatory

Managing Director, The Cable Corporation
- --------------------------------------------
title



UNITED ARTISTS COMMUNICATIONS (COTSWOLDS) LIMITED


- --------------------------------------------
authorised signature                date

Larry Carleton
- --------------------------------------------
print or type name of signatory

President and Chief Operating Officer, TeleWest
- --------------------------------------------
title


                                       26
<PAGE>
ENCOM CABLE TV AND TELECOMMUNICATIONS


- --------------------------------------------
authorised signature                date

John Sheridan
- --------------------------------------------
print or type name of signatory

Managing Director and Chief Executive Officer, ENCOM
- --------------------------------------------
                                      TITLE





                                       27
<PAGE>






                               TELEWEST GROUP GPA

                                   AMENDMENT 1

                                   APPENDIX 1








                                  ATTACHMENT K

                         CATV SOFTWARE STRUCTURE (BCS34)




                                       28
<PAGE>
DMS SOFTWARE STRUCTURE

DMS Software is delivered in various Feature Packages, referred to by NTX
prefixed codes. Each NTX Package contains a number of individual Features,
referenced by Feature Identity Codes.

To assist CATV operators select the right combination of feature packages
Northern Telecom has created Modules of NTX packages addressing various
applications as shown in Annex 1 to this document.

The Packages contained within each Module are appended to this attachment as
Annex 2.

The diagram is structured to show Software dependencies where a Module is
represented by another supporting Module. For example, Module 21 requires
Modules 5 and 19. Where possible, Northern Telecom has structured this proposal
to reflect real services CATV operators will wish to offer and to minimise the
number of dependant modules required to deliver a particular service.

The functionality of each Module is outlined below.

For more details on the precise capability of each Module, please refer to the
following documentation, using the relevant NTX Package code.

I.       DMS-100 ADVANCED SERVICES FEATURE GUIDE (BCS 33)

This is a reference document which describes the voice features included in the
various Software packages available on the DMS in the UK at Software release
BCS33. The BCS34 update will be available later this year.

II.      DMS-100 MDC VOICE FEATURES - BCS 34

This details the full DMS 100 capability, but not all features are available in
the UK market. It does however contain useful information on the UK features not
yet incorporated in the DMS Advanced Services Feature Guide.

III.     UK SPECIFIC FEATURES

There are a number of Software packages which have been developed specifically
for the UK market to allow DMS 100 to operate in the UK market. As they provide
no additional feature capability, they do not appear in the DMS-100 advanced
services feature guide. They are therefore attached as Annex 3 to this document.


                                       29
<PAGE>
MODULE DESCRIPTIONS

The entire Software load is delivered to the Cable TV operator, but only those
packages licensed can be used. Those Modules licenced (i.e., included in our
Software prices) are shown by shading in the diagram (Annex 1). Should you wish
to extend your licence, then you will be able to use the Software without the
inconvenience of an upgrade. The commercial arrangements for this are defined in
the GPA.

1.       FOUNDATION (INCLUDING CORE CENTREX)

This module contains all the key system and operating Software plus the
capability to offer many features for residential use as well as a basic
featured Centrex service.

The Key Residential features included in this module are:


                         [CONFIDENTIAL PORTION OMITTED]


In addition, many Centrex features included but not listed above can also be
successfully marketed to the residential market.

[CONFIDENTIAL PORTION OMITTED]

Many of the features provided by this Module are contained in Packages NTX100AA,
NTX413AB, NTXJ84AA and are contained in parts of NTX101AA, NTX103AA and NTX435AA
 . Details of these feature packages can be found in the book 'DMS-100 Advanced
Services Features Guide.

2.       BILLING - LAMA - LOCAL AUTOMATIC MESSAGE ACCOUNTING.

This Module provides the capability for DMS-100 to provide billing records in
AMA format.

3.       ADVANCED STATION FEATURES

This provides further station features to enhance both your residential and
business offerings.

In particular, it includes features such as [CONFIDENTIAL PORTION OMITTED]

4.       ANALOGUE INTERCONNECT

This Module is used for analogue interconnect, when required.


                                       30
<PAGE>
5.       ANSI ISUP+ INCLUDING NETWORK CENTREX

This Module provides the capability for ANSI ISUP+ signalling on the DMS-100, to
enable feature networking between DMS-100s.

This allows Network Centrex to be provided between multiple DMS 100 nodes giving
maximum flexibility in service provision for your customers.

This is also used as the basis for Network wide deployment between DMS 100 nodes
for advanced services where capabilities to allow the transit of advanced
features and services where this cannot be done using other signalling systems.

Also included in this module is the capability to provide Network wide Ring
Again.

6.       BTUP

This Module provides BTUP signalling on the DMS-100 for interconnection to other
public exchanges supporting BTUP.

7.       DPNSS ACCESS

This module allows digital PBXs to connect to the DMS-100 using DPNSS or via an
appropriate interface converter using DASS2.

DPNSS can be used for basic call PSTN access. It can also allow full access to
Virtual Private Networking and Hybrid Networking on a single node basis.

In particular the following capabilities are provided:


                         [CONFIDENTIAL PORTION OMITTED]


8.       ANALOGUE PBX

This Module provides analogue PABX connections via DC5 and AC15.

This not only provides the capability to connect for PSTN calls, but also as a
VPN for smaller site sizes than traditionally cost-effective where DPNSS is
used. In effect, the PBX line becomes part of the customer group and has the
flexibility for tariffing and routing as a VPN.

9.       LINE CARD

This Module provides the Software required by DMS line cards.

                                       31
<PAGE>
10.      PLD - PCM30 LINE DRAWER

This Module provides the Software required by the PLD which is used for the
provision of 2Mbit/s CAS signalling required by multiplexors.

11.      SRU - SMALL REMOTE UNIT

This Module is required by the DMS Small Remote Unit.

12.      RSC - REMOTE SWITCHING CENTRE

This Module is required by the DMS Remote Switching Centre.

13.      NOT ASSIGNED

14.      MESSAGE SERVICES AND SMDI (SIMPLIFIED MESSAGE DESK INTERFACE)

This Module gives the ability to interface with voice mail systems to allow them
to turn on and off the DMS message waiting indication at the handset. Message
Waiting can be provided to MF telephones as well as the P Phone.

SMDI is also used by the screen based attendant console to identify the
telephone number of callers from within a Centrex group.

This module also allows the implementation of an attendant-based message
service.

15.      CALL FORWARD REMOTE ACTIVATION

This module allows callers to remotely programme their telephone for call
forwarding to any phone anywhere in the world.

16.      ADVANCED CENTREX

This provides many telephone set features to complete the set of nodal
non-display business services.

It also includes a number of system features including;


                         [CONFIDENTIAL PORTION OMITTED]

17.      NETWORK PBX VPN

This Module provides full DPNSS feature transparency between DMS 100 switches.


                                       32
<PAGE>
This allows the capability to provide a PBX based Virtual Private Network across
a wide geographic area without constraint to a single node. All DPNSS features
are transported between the PBX's as if the link had been provided by a private
circuit.

18.      AUTOMATIC CALL DISTRIBUTION

This Module offers nodal Automatic Call Distribution (ACD), including advanced
agent features and queuing capabilities.

It includes the ability to display name and number information on Northern
Telecom proprietary ACD display phones. Although the Software to do this is
contained in module 19, purchase of this module includes the right to use the P
Phone Software for ACD purposes.

Also included are enhanced agent/supervisor features, enhanced queuing and
recorded announcement capabilities, plus the interface to the Management
Information System.

19.      P PHONE SETS INCLUDING BUSINESS SET DISPLAY FEATURES

This module provides the capability to offer P Phone features. The two base
packages in this module are NTX106AA and NTX878AE. Details of the features
offered in these packages can be found in the DMS 100 Advanced Services Feature
Guide. A list of the features in NTX106AA can be found on pages 445 to 446 and
in NTX878AE on page 449.

This Module also supports the display of names, telephone numbers and call
related information on Northern Telecom proprietary business display phones.

20.      NOT ASSIGNED

21.      NETWORK DISPLAY FEATURES

This Module provides the ability for Network Wide Name and Number Call display
on Northern Telecom proprietary business display phones. This can be provided
between DMS 100 switches removing any constraint to a single area.

22.      SUPERGROUP ACD

This Module includes the capability for large single node ACD applications, to:

[CONFIDENTIAL PORTION OMITTED]

23.      NETWORK ACD

This Module enhances Module 22 by providing the same services across multiple
DMS nodes using ANSI ISUP+ signalling.


                                       33
<PAGE>
24.      NETWORK MANAGEMENT

This Module enhances the DMS-100 Network Management capability.

25.      RLCM - REMOTE LINE CONCENTRATING UNIT

This Module is required by the DMS Remote Line Concentrating Unit.

26.      NETWORK MESSAGE SERVICE

This Module allows a single Voice Mail system connected to the DMS 100 SMDI port
to provide a network wide Message Waiting Capability.

27        ADVANCED NETWORK CENTREX

This module enhances the Network Centrex service with additional capabilities
such as Network Attendant Service, Network Speed Calling and ESN.

28       NETWORKED HYBRID VPN

This allows Hybrid VPN's mixing both Centrex and PBX sites to provided across a
network of DMS 100 switches.

29       ISDN PRA

This provides the capability to deploy ISDN PRA lines. This is not in the
current BCS34 CATV load but will be supported in a future BCS34 release.

30       VIRTUAL FACILITY GROUPS

This allows emulation of leased lines in a virtual private network such that
calls can be limited to the number of virtual circuits provided with overflow
calls given busy tone or charged at a higher rate.



                                       34
<PAGE>


                                     ANNEX 1

                            CATV PACKAGING STRUCTURE









(C)        COPYRIGHT NORTHERN TELECOM EUROPE LIMITED 1993        PROPOSAL 2/399

         Copyright in the whole and every part                       July 1993
         of this document is owned by NT Europe Ltd





                                       35
<PAGE>






                         [CONFIDENTIAL PORTION OMITTED]










(C)        COPYRIGHT NORTHERN TELECOM EUROPE LIMITED 1993        PROPOSAL 2/399

         Copyright in the whole and every part                       July 1993
         of this document is owned by NT Europe Ltd



                                       36
<PAGE>




                                     ANNEX 2



                               CATV PACKAGING LIST




                                  PROPRIETARY
                                  -----------

    THE INFORMATION CONTAINED HEREIN SHOULD NOT BE DISCLOSED TO UNAUTHORISED
 PERSONS, IT IS INBTENDED FOR USE BY AUTHORISED REPRESENTATIVES OF THE PARTIES
                                TO THIS DOCUMENT



                                       37
<PAGE>

<TABLE>
<CAPTION>
LIST.ID          FUNCTION        HW      PACKAGE                            TITLE
HARDWARE OPTIONS (INCLUDED IN MODULE 1)
                   A-SN40, JNET, MSB
<S>             <C>             <C>     <C>                              <C>
Hardware         System          AB      NTXD18AB
Hardware         System          AB              NTX940AA
Hardware         System          AB              NTX941AA
Hardware         System          AB              NTX942AB
Hardware         System          AB              NTX950AA
Hardware         System          AB              NTX951AA
Hardware         System          AB              NTXE54AA
Hardware         System          AB              NTXF16AA
Hardware         System          AB              NTXR46AA
Hardware         System          B       NTXP10AAaaa                        [CONFIDENTIAL
Hardware         System              BC  NTXE01AA
Hardware         System              BC  NTXP13AA
Hardware         System              BC  NTXD44AB
Hardware         System              BC          NTXF20AA                   PORTION
Hardware         System              BC          NTXN18AA
Hardware         System              BC          NTXF71AB
Hardware         System              BC  NTXN19AA
Hardware         System              BC  NTX839AB
Hardware         System              BC  NTXR72AA                           OMITTED]
Hardware         System               C  NTXD25AA
Hardware         System               C          NTX940AA
Hardware         System               C          NTX941AA
Hardware         System               C          NTX942AB
Hardware         System               C          NTX950AA
Hardware         System               C          NTX951AA
Hardware         System               C          NTXE54AA
Hardware         System               C          NTXF97AA
Hardware         System               C          NTXR46AA

C7 Sub.1         System                  NTX040AA
C7 Sub.2         System                  NTX041AB
C7 Sub.3         System                  NTX167AB
C7 Sub.4         System                  NTX550AA
C7 Sub.5         System                  NTX936AB
C7 Sub.6         System                  NTXA79AA
C7 Sub.7         System                  NTXK49AA




                                       38
<PAGE>
LIST.ID          FUNCTION        HW      PACKAGE                            TITLE
MODULE 1 - FOUNDATION INCLUDING CORE FEATURES

1.01             System                  NTX003AB
1.02             System                          NTX000AA
1.03             System                          NTX001AA
1.04             System                          NTX006AA
1.05             System                          NTX007AB
1.06             System                          NTX053AA
1.07             System                          NTX056AA
1.08             System                          NTX901AA
1.09             System                          NTX902AA
1.10             System                  NTX048AA
1.11             System                  NTX048BA
1.12             System                  NTX051AA
1.13             System                  NTX054AA
1.14             System                  NTX055AA
1.15             System                  NTX055AB                           [CONFIDENTIAL
1.16             System                  NTX055AC
1.17             System                  NTX059AB
1.18             System                  NTX064AA
1.19             System                  NTX065AA
1.20             System                  NTX074AA                           PORTION
1.21             System                  NTX082AA
1.22             System                  NTX085AA
1.23             System                  NTX087AA
1.24             System                  NTX088AA
1.25             System                  NTX120AA                           OMITTED]
1.26             System                  NTX122AA
1.27             System                  NTX142AA
1.28             System                  NTX269AA
1.29             System                  NTX270AA
1.30             System                  NTX273AA
1.31             System                  NTX274AA
1.32             System                  NTX292BA
1.33             System                  NTX385AA
1.34             System                  NTX445AB
1.35             System                  NTX560AB
1.36             System                  NTX733AE
1.37             System                  NTX738AC
1.38             System                  NTX750AB
1.39             System                  NTX913AA
1.40             System                  NTXA11AA
1.41             System                  NTXA15AA
1.42             System                  NTXB57AA
1.43             System                  NTXB74AA
1.44             System                  NTXU17AA
1.45             System                  NTXE29AA
1.46             System                  NTXE65AA
1.47             System                  NTXE98AA
1.48             System                  NTXH62AA
1.49             System                  NTXJ44AA
1.50             System                  NTX418AA
1.52             System                  NTX717AB
1.53             System                  NTX730AA
1.54             System                  NTX057AB
1.55             System                  NTX121AA
1.57             System                  NTX272AAaaa



                                       39
<PAGE>
1.58             System                  NTX293AA
1.60             System                  NTXF87AA
1.61             System                  NTXJ35AAaaa
1.62             System                  NTXK01AA
1.63             System                  NTXK65AA
1.64             System                  NTXK68AAaaa
1.66             System                  NTXU15AAaaa
1.67             System                  NTXA67AA
1.69             Features                NTX100AA
1.70             Features                NTX244AB
1.77             Features                NTX611AA
1.80             Features                NTX964AA
1.81             Features                NTX968AA
1.82             Features                NTX105AA
1.85             Features                NTX433AA
1.87             Features                NTX008AB
1.89             Features                NTX431AA
1.91             Features                NTX413AB
1.92             Features                NTX824AB
1.93             Features                NTXJ58AA                           [CONFIDENTIAL
1.94             Features                NTX103BA
1.95             Features                NTXP57AA
1.96             Features                NTXJ84AA

1.97             Features                NTX101AA (PART)

                                                                            PORTION





1.98             Features                NTX103AA (PART)                    OMITTED]




1.99             Features                NTX435AA (PART)


MODULE 2 - BILLING (LAMA)

2.00             Billing                 NTX081AA
2.01             Billing                 NTXD07AA
2.02             Billing                         NTX042AA
2.03             Billing                         NTX159AA
2.04             Billing                         NTX737AB
2.05             Billing                         NTXE28AA
2.06             Billing                 NTX165AA
2.07             Billing                 NTXH53AA




                                       40
<PAGE>
LIST.ID         FUNCTION          HW     PACKAGE                             TITLE
MODULE 3 - ADVANCES STATION FEATURES

3.01            Features                 NTX820AA
3.02            Features                 NTXA64AA
3.03            Features                 NTXF82AA
3.04            Features                 NTXJ38AA
3.05            Features                 NTX127AA
3.06            Features                 NTXJ70AA
3.07            Features                 NTX219AB
3.08            Features                 NTXJ47AA
3.09            Features                 NTX898AA
3.10            Features                 NTX436AA

MODULE 4 - ANALOGUE
INTERCONNECT                                                                 [CONFIDENTIAL

4.00            Interconect              NTX911AA
4.01            Interconnect             NTXK34AA                            PORTION

LIST.ID    FUNCTION         HW                PACKAGE

                                                                              OMITTED]
MODULE 5 - ISUP INTERCONNECT

5.01       Interconnect                       NTXE66AA
5.02       Interconnect                       NTXJ68AA
5.03       Interconnect                       NTXA79AA
5.04       Features                           NTXA36AA

MODULE 6 - BTUP
INTERCONNECT

6.01       Interconnect                       NTX937AB
6.03       Interconnect                       NTXK54AA

MODULE 7 - DPNSS ACCESS


7.01       Access                             NTX958AA
7.04       Access                             NTXK18AA
7.05       Access                             NTXK44AA





                                       41
<PAGE>
LIST.ID    FUNCTION         HW                PACKAGE                        TITLE
MODULE 8 - ANAOGUE PBX ACCESS

8.01       Access                             NTXK03AA


MODULE 9 - LINE CARD ANALOGUE ACCESS

9.01       Access                             NTXW00AA
9.02       Access                             NTXW22AA

MODULE 10 - PCM LINE DRAWER ACCESS
10.01      Access                             NTXK00AB

MODULE 11 - SMALL REMOTE UNIT ACCESS
11.01      Access                             NTXH96AA

MODULE 12 - REMOTE SWITCHING CENTRE ACCESS

12.01      Access                             NTX145AA
12.03      Access                             NTX152AB                       [CONFIDENTIAL

MODULE 14 - MESSAGING (INCLUDING VOICE MAIL AND SMDI)
                                                                             PORTION
14.00      Features                           NTX119AA
14.01      Features                           NTX732AA
                                                                             OMITTED]
MODULE 15 - CALL FORWARD REMOTE ACTIVATION

15.01      Features                           NTXN75AA

MODULE 16 - ADVANCED CENTREX

16.00      Features                           NTX427AA
16.01      Features                           NTX111AA
16.02      Features                           NTXA31AA
16.03      Features                           NTX260AA
16.04      Features                           NTX412CB
16.05      Features                           NTX414AA
16.06      Features                           NTXJ83AA
16.07      Features                           NTX719AA
16.12      Features                           NTXA27AA
16.13      Features                           NTXA33AA
16.15      Features                           NTXA72AA
16.16      Features                           NTXA84AA
16.17      Features                           NTXE39AA



                                       42
<PAGE>
LIST.ID    FUNCTION         HW                PACKAGE                        TITLE
16.20      Features                           NTXJ82AA
16.21      Features                           NTXA77AA
16.22      Features                           NTXE44AA
16.23      Features                           NTX410AA
16.24      Features                           NTX262AA
16.25      Features                           NTX434AA
16.26      Features                           NTX101AA
16.27      Features                           NTX102AA
16.28      Features                           NTX103AA
16.29      Features                           NTX728AA
16.30      Features                           NTXA32AA
16.31      Features                           NTX435AA





MODULE 17  NETWORK PBX VPN
17.02            Features                         NTXK43AA

MODULE 18 - BASE ACD
18.01            Features                         NTXD14AG                      [CONFIDENTIAL
                 Features                                 NTX407AB
                 Features                                 NTX415AA
                 Features                                 NTX416AI              PORTION
                 Features                                 NTX727AD
                 Features                                 NTX991AF
                 Features                                 NTXA52AB
18.02            Features                         NTXE09AB                      OMITTED]
18.03            Features                         NTX417AA

MODULE 19 - P PHONE SETS INCLUDING BUSINESS DISPLAY FEATURES

19.01            Features                         NTX108AA
19.02            Features                         NTX946AB
19.04            Features                         NTXE47AA
19.04            Features                         NTX106AA
19.05            Features                         NTX878AE
19.06            Features                         NTXE62AA


MODULE 21 - NETWORK DISPLAY FEATURES

21.03            Features                         NTXA35AA
21.05            Features                         NTXA80AA




                                       43
<PAGE>
LIST.ID          FUNCTION         PACKAGE                                       TITLE
MODULE 22 - SUPERGROUP ACD (NODAL)
22.01            Features                         NTXE22AA


MODULE 23 - NETWORK ACT (MULTI-NODE)
23.01            Features                         NTXN46AA

MODULE 24 - NETWORK MANAGEMENT

24.01            Admin                            NTX060AB
24.02            Admin                            NTX060BB                      [CONFIDENTIAL

MODULE 25 - REMOTE LINE CONCENTRATING MODULE ACCESS

25.01            Access                           NTX146AA                      PORTION
25.02            Access                           NTX147AB
25.03            Access                           NTX154AA
25.04            Access                           NTX156AA
25.05            Access                           NTX963AA                      OMITTED]

MODULE 27 - ADVANCED NETWORK CENTREX

27.02            Features                         NTXA39AA
27.03            Features                         NTX432AA
17.04            Features                         NTX430AA

MODULE 28 - NETWORK HYBRID VPN

28.02            Access                           NTXB55AB
28.01            Features                         NTXK45AB

MODULE 30 - VIRTUAL FACILITY GROUPS

30.01            Features                         NTX112AB



</TABLE>



                                       44
<PAGE>







                                     ANNEX 3



                              UK SPECIFIC FEATURES




(C)        COPYRIGHT NORTHERN TELECOM EUROPE LIMITED 1993        PROPOSAL 2/399

         Copyright in the whole and every part                        July 1993
         of this document is owned by NT Europe Ltd



                                       45
<PAGE>
UK SPECIFIC FEATURES

There are a number of features which have been developed for the UK market which
have yet to be included in any global documentation. These have been summarised
in this Annex.

NTX 964AA

DMS-100 CENTREX
INTERNATIONAL

AE0290 - [CONFIDENTIAL PORTION OMITTED]

FEATURE SYNOPSIS

This activity [CONFIDENTIAL PORTION OMITTED]



- -------------------------------------------------------


NTX 968AA

DMS-100 CENTREX
INTL FEATURES

AE0275 - [CONFIDENTIAL PORTION OMITTED]

FEATURE SYNOPSIS

This feature provides [CONFIDENTIAL PORTION OMITTED]



- -------------------------------------------------------




                                       46
<PAGE>
NTX 611AA

UK BUSINESS FEATURES

AE0070 - [CONFIDENTIAL PORTION OMITTED]

FEATURE SYNOPSIS

This feature will enhance [CONFIDENTIAL PORTION OMITTED]


AE0289 - [CONFIDENTIAL PORTION OMITTED]

FEATURE SYNOPSIS

This feature will [CONFIDENTIAL PORTION OMITTED]


AE0368 - [CONFIDENTIAL PORTION OMITTED]

FEATURE SYNOPSIS

This feature will [CONFIDENTIAL PORTION OMITTED]


AE0402 -  [CONFIDENTIAL PORTION OMITTED]

FEATURE SYNOPSIS

This activity [CONFIDENTIAL PORTION OMITTED]


BC2083 - [CONFIDENTIAL PORTION OMITTED]

FEATURE SYNOPSIS

[CONFIDENTIAL PORTION OMITTED]

- -------------------------------------------------------




                                       47
<PAGE>





                                     ANNEX 4



                                     PRICING





(C)        COPYRIGHT NORTHERN TELECOM EUROPE LIMITED 1993        PROPOSAL 2/399

         Copyright in the whole and every part                        July 1993
         of this document is owned by NT Europe Ltd


                                       48
<PAGE>
This Annex 4 replaces Section 9.8, of the Supplier's Proposal


                                 TELEWEST/ENCOM

                            SOFTWARE PRICING - BCS 34


<TABLE>
<CAPTION>
Module       Title                                       Price per   Price per   Unit Type
ID                                                       Switch      Unit

<S>         <C>                                         <C>         <C>         <C>
1            Foundation including core services                                  Subs line

2            Billing - LAMA                                                      Subs line

3            Advanced station features
                          -Option A
                          -Option B                                              Subs line

4            Analogue Interconnect                       [CONFIDENTIAL           PDTC

5            ANSI ISUP+ including. Network Centrex                               PDTC

                                                          PORTION
6            BTUP                                                                PDTC

7            Digital PBX Access                                                  DPNSS link

                                                          OMITTED]
8            Analogue PBX access                                                 2Mbps Muxlink

9            Line Card                                                           Line card

10           PLD (PCM30 Line Drawer)                                             2Mbps Muxlink

11           SRU (small remote unit)
                       -Option A
                       -Option B                                                 SRU

12           RSC
             (Remote Switching Centre)
                       -Option A
                       -Option B                                                 RSC

13           Not assigned




                                       49
<PAGE>
14           Message Services & SMDI                                             -

15           Call Forward Remote Activation                                      -

16           Advanced Centrex
                       -Option A
                       -Option B                                                 Subs line

17           Network PBX VPN                                                     -

18           Automatic Call Distribution                                         -

19           P Phone  sets  including  Business  Display
             features
                         -Option A
                         -Option B                                               P phone line card
                                                                                 Purchased

20           Not assigned

21           Network Display features                                            -

22           Supergroup ACD                              [CONFIDENTIAL           -

23           Network ACD                                                         -

24           Enhanced Network Management                 PORTION                 -

25           RLCM (Remote Line Concentrating Module)
                       -Option A
                       -Option B                         OMITTED]
                                                                                 RLCM

26           Network Message Service                                             -
             (2nd release BCS34)

27           Advanced Network Centrex                                            -

28           Network Hybrid VPN                                                  -

29           ISDN PRA                                                            PRA link
             (2nd release BCS34)

30           Virtual Facility Groups                                             -

</TABLE>


                                       50
<PAGE>





                                     ANNEX 5



                           MAPPING OF ORIGINAL FEATURE



                           PACKAGING TO NEW STRUCTURE






                                       51
<PAGE>

<TABLE>
<CAPTION>
- -------------------------------------------------------------------------------------------------------
MODULE 1
- ------------------------------------                                             ----------------------
<S>              <C>                                                             <C>
1.01               NTXD18AB
- ------------------------------------                                             ----------------------
1.02                       NTX940AA
- ------------------------------------                                             ----------------------
1.03                       NTX941AA
- ------------------------------------                                             ----------------------
1.04                       NTX942AB
- ------------------------------------                                             ----------------------
1.05                       NTX950AA
- ------------------------------------                                             ----------------------
1.06                       NTX951AA
- ------------------------------------                                             ----------------------
1.07                       NTXE54AA
- ------------------------------------                                             ----------------------
1.08                       NTXF16AA
- ------------------------------------                                             ----------------------
1.09                       NTXR46AA
- ------------------------------------                                             ----------------------
1.10               NTX003AB
- ------------------------------------                                             ----------------------
1.11                       NTX000AA
- ------------------------------------                                             ----------------------
1.12                       NTX001AA
- ------------------------------------                                             ----------------------
1.13                       NTX006AA
- ------------------------------------                                             ----------------------
1.14                       NTX007AB
- ------------------------------------                                             ----------------------
1.15                       NTX053AA                 [CONFIDENTIAL
- ------------------------------------                                             ----------------------
1.16                       NTX056AA
- ------------------------------------                                             ----------------------
1.17                       NTX901AA                   PORTION
- ------------------------------------                                             ----------------------
1.18                       NTX902AA
- ------------------------------------                                             ----------------------
1.19               NTX048AA                           OMITTED]
- ------------------------------------                                             ----------------------
1.20               NTX048BA
- ------------------------------------                                             ----------------------
1.21               NTX051AA
- ------------------------------------                                             ----------------------
1.22               NTX054AA
- ------------------------------------                                             ----------------------
1.23               NTX055AA
- ------------------------------------                                             ----------------------
1.24               NTX055AB
- ------------------------------------                                             ----------------------
1.25               NTX055AC
- ------------------------------------                                             ----------------------
1.26               NTX059AB
- ------------------------------------                                             ----------------------
1.27               NTX064AA
- ------------------------------------                                             ----------------------
1.28               NTX065AA
- ------------------------------------                                             ----------------------
1.29               NTX074AA
- ------------------------------------                                             ----------------------
1.30               NTX082AA
- ------------------------------------                                             ----------------------
1.31               NTX085AA
- ------------------------------------                                             ----------------------
1.32               NTX087AA
- ------------------------------------                                             ----------------------
1.33               NTX088AA
- ------------------------------------                                             ----------------------
1.34               NTX100AA
- ------------------------------------                                             ----------------------
1.39               NTX120AA
- ------------------------------------                                             ----------------------
1.40               NTX122AA
- ------------------------------------                                             ----------------------
1.41               NTX142AA
- ------------------------------------                                             ----------------------
1.42               NTX146AA                                                      Now in module 25
- ------------------------------------                                             ----------------------
1.43               NTX147AB
- ------------------------------------                                             ----------------------
1.44               NTX244AB
- ------------------------------------                                             ----------------------
1.45               NTX269AA
- ------------------------------------                                             ----------------------
1.46               NTX270AA
- ------------------------------------                                             ----------------------
1.47               NTX273AA


                                       52
<PAGE>
- -------------------------------------------------------------------------------------------------------
1.48               NTX274AA
- ------------------------------------                                             ----------------------
1.49               NTX292BA
- ------------------------------------                                             ----------------------
1.50               NTX385AA
- ------------------------------------                                             ----------------------
1.51               NTX432AA                                                      Removed from load
- ------------------------------------                                             ----------------------
1.52               NTX433AA
- ------------------------------------                                             ----------------------
1.53               NTX434AA                                                      Now in module 16
- ------------------------------------                                             ----------------------
1.54               NTX445AB
- ------------------------------------                                             ----------------------
1.55               NTX560AB
- ------------------------------------                                             ----------------------
1.56               NTX611AA
- ------------------------------------                                             ----------------------
1.57               NTX717AB
- ------------------------------------                                             ----------------------
1.58               NTX730AA
- ------------------------------------                                             ----------------------
1.59               NTX733AE
- ------------------------------------                                             ----------------------
1.60               NTX738AC
- ------------------------------------                                             ----------------------
1.61               NTX750AB
- ------------------------------------                                             ----------------------
1.62               NTX913AA
- ------------------------------------                                             ----------------------
1.63               NTX936AB
- ------------------------------------                                             ----------------------
1.64               NTX964AA
- ------------------------------------                                             ----------------------
1.65               NTX968AA                        [CONFIDENTIAL
- ------------------------------------                                             ----------------------
1.66               NTXA11AA
- ------------------------------------                                             ----------------------
1.67               NTXA15AA                            PORTION
- ------------------------------------                                             ----------------------
1.70               NTXB57AA
- ------------------------------------                                             ----------------------
1.71               NTXB74AA                           OMITTED]
- ------------------------------------                                             ----------------------
1.72               NTXB91AA                                                      Replaced by NTXU17AA
- ------------------------------------                                             ----------------------
1.73               NTXE29AA
- ------------------------------------                                             ----------------------
1.74               NTXE65AA
- ------------------------------------                                             ----------------------
1.75               NTXE98AA
- ------------------------------------                                             ----------------------
1.76               NTXH62AA
- ------------------------------------                                             ----------------------
1.78               NTXJ44AA
- ------------------------------------                                             ----------------------
1.79               NTXJ83AA                                                      Now in module 16
- ------------------------------------                                             ----------------------
1.80               NTXE01AA
- ------------------------------------                                             ----------------------
1.81               NTXF71AB
- ------------------------------------                                             ----------------------
1.82               NTXP13AA
- ------------------------------------                                             ----------------------
1.83               NTXD44AB
- ------------------------------------                                             ----------------------
1.84               NTXF20AA
- ------------------------------------                                             ----------------------
1.85               NTXN18AA
- ------------------------------------                                             ----------------------
1.86               NTXN19AA
- ------------------------------------                                             ----------------------
1.87               NTX839AB
- ------------------------------------                                             ----------------------
1.88               NTXR72AA
- ------------------------------------                                             ----------------------

- ------------------------------------                                             ----------------------
MODULE 1A
- ------------------------------------                                             ----------------------
1a.01              NTX101AA                                                      Part in module 1
                                                                                 Part in module 16
- ------------------------------------                                             ----------------------
1a.02              NTX102AA                                                      Now in module 16
- ------------------------------------                                             ----------------------
1a.03              NTX103AA                                                      Part in module 1
                                                                                 Part in module 16
- ------------------------------------                                             ----------------------
1a.04              NTX106AA                                                      Now in module 19
- ------------------------------------                                             ----------------------
1a.05              NTXA43AA                                                      Now in module 15



                                       53
<PAGE>
- -------------------------------------------------------------------------------------------------------
1a.06              NTXA77AA                                                      Now in module 16
- ------------------------------------                                             ----------------------
1a.07              NTX413AA                                                      Upgraded to NTX413AB
                                                                                 Now in module 1
- ------------------------------------                                             ----------------------

- ------------------------------------
MODULE C7 SUB
- ------------------------------------                                             ----------------------
C7 Sub.1           NTX040AA
- ------------------------------------                                             ----------------------
C7 Sub.2           NTX041AB
- ------------------------------------                                             ----------------------
C7 Sub.3           NTX167AB
- ------------------------------------                                             ----------------------
C7 Sub.4           NTX550AA
- ------------------------------------                                             ----------------------
C7 Sub.5           NTXA79AA
- ------------------------------------                                             ----------------------

- ------------------------------------                                             ----------------------
MODULE 2
- ------------------------------------                                             ----------------------
2.01               NTXD07AA
- ------------------------------------                                             ----------------------
2.02                       NTX042AA
- ------------------------------------                                             ----------------------
2.03                       NTX159AA
- ------------------------------------                                             ----------------------
2.04                       NTX737AB
- ------------------------------------                                             ----------------------
2.05                       NTXE28AA                 [CONFIDENTIAL
- ------------------------------------                                             ----------------------
2.06               NTX165AA
- ------------------------------------                                             ----------------------
2.07               NTXH53AA                           PORTION
- ------------------------------------                                             ----------------------

- ------------------------------------                                             ----------------------
MODULE 3                                              OMITTED]
- ------------------------------------                                             ----------------------
3.01               NTX112AB                                                      Now in module 30
- ------------------------------------                                             ----------------------
3.02               NTX410AA                                                      Now in module 16
- ------------------------------------                                             ----------------------
3.04               NTX418AA                                                      Now in module 1
- ------------------------------------                                             ----------------------
3.05               NTX262AA                                                      Now in module 16
- ------------------------------------                                             ----------------------
3.06               NTX119AA                                                      Now in module 14
- ------------------------------------                                             ----------------------
3.07               NTX824AB                                                      Now in module 1
- ------------------------------------                                             ----------------------
3.08               NTX898AA
- ------------------------------------                                             ----------------------
3.09               NTX436AA
- ------------------------------------                                             ----------------------
3.10               NTXE94AA                                                      Removed from load
- ------------------------------------                                             ----------------------
3.11               NTXJ47AA
- ------------------------------------                                             ----------------------
3.12               NTXJ70AA
- ------------------------------------                                             ----------------------
3.13               NTXA64AA
- ------------------------------------                                             ----------------------
3.14               NTXF82AA                                                      Removed from load
- ------------------------------------                                             ----------------------
3.15               NTX878AE                                                      Now in module 19
- ------------------------------------                                             ----------------------
3.16               NTXA32AA                                                      Now in module 16
- ------------------------------------                                             ----------------------
3.17               NTXJ38AA
- ------------------------------------                                             ----------------------
3.18               NTX127AA
- ------------------------------------                                             ----------------------
3.19               NTX219AB
- ------------------------------------                                             ----------------------
3.20               NTXA18AA                                                      Removed from load
- ------------------------------------                                             ----------------------
3.21               NTXA81AA                                                      Removed from load
- ------------------------------------                                             ----------------------
3.22               NTXF85AA                                                      Removed from load
- ------------------------------------                                             ----------------------
3.23               NTXJ58AA                                                      Now in module 1
- ------------------------------------                                             ----------------------
3.24               NTXJ69AA                                                      Removed from load
- ------------------------------------                                             ----------------------
3.25               NTX435AA                                                      Part in module 1
                                                                                 Part in module 16


                                       54
<PAGE>
- -------------------------------------------------------------------------------------------------------
MODULE 4
- ------------------------------------                                             ----------------------
4.01               NTXK34AA
- ------------------------------------                                             ----------------------

- ------------------------------------                                             ----------------------
MODULE 5

- ------------------------------------                                             ----------------------
5.01               NTXE66AA
- ------------------------------------                                             ----------------------
5.02               NTXJ68AA
- ------------------------------------                                             ----------------------

- ------------------------------------                                             ----------------------
MODULE 6
- ------------------------------------                                             ----------------------
6.01               NTX937AA
- ------------------------------------                                             ----------------------
6.02               NTXK54AA
- ------------------------------------                                             ----------------------
6.03               NTXK49AA                                                      Now in module 1
- ------------------------------------                                             ----------------------

- ------------------------------------                                             ----------------------
MODULE 7
- ------------------------------------                                             ----------------------
7.01               NTX958AA
- ------------------------------------                                             ----------------------
7.02               NTXB55AB                                                      Now in module 28
- ------------------------------------                                             ----------------------
7.03               NTXK44AA
- ------------------------------------                                             ----------------------
7.04               NTXA36AA                                                      Now in module 5
- ------------------------------------                                             ----------------------
                                                    [CONFIDENTIAL
- ------------------------------------                                             ----------------------
MODULE 8
- ------------------------------------                                             ----------------------
8.01               NTXK03AA                           PORTION
- ------------------------------------                                             ----------------------

- ------------------------------------                                             ----------------------
MODULE 9                                              OMITTED]
- ------------------------------------                                             ----------------------
9.01               NTXW00AA
- ------------------------------------                                             ----------------------
9.02               NTXW22AA
- ------------------------------------                                             ----------------------

- ------------------------------------                                             ----------------------
MODULE 10
- ------------------------------------                                             ----------------------
10.01              NTXK00AB
- ------------------------------------                                             ----------------------

- ------------------------------------                                             ----------------------
MODULE 11
- ------------------------------------                                             ----------------------
11.01              NTXH96AA
- ------------------------------------                                             ----------------------

- ------------------------------------                                             ----------------------
MODULE 12
- ------------------------------------                                             ----------------------
12.01              NTX152AB
- ------------------------------------                                             ----------------------
12.02              NTX145AA
- ------------------------------------                                             ----------------------

- ------------------------------------                                             ----------------------
MODULE 13
- ------------------------------------                                             ----------------------
13.01              NTX103BA                                                      Now in module 1
- ------------------------------------                                             ----------------------
13.02              NTXA88AA                                                      Removed from load
- ------------------------------------                                             ----------------------

- ------------------------------------                                             ----------------------
MODULE 14
- ------------------------------------                                             ----------------------
14.01              NTX732AA
- ------------------------------------                                             ----------------------

MODULE 15                                                                        Reallocated for call
                                                                                 Forward        Remote
                                                                                 Activation


                                       55
<PAGE>
- -------------------------------------------------------------------------------------------------------
MODULE 16
- ------------------------------------                                             ----------------------
16.01              NTX105AA                                                      Now in module 1
- ------------------------------------                                             ----------------------
16.02              NTX111AA
- ------------------------------------                                             ----------------------
16.03              NTX260AA
- ------------------------------------                                             ----------------------
16.04              NTX412CB
- ------------------------------------                                             ----------------------
16.05              NTX414AA
- ------------------------------------                                             ----------------------
16.06              NTX427AA
- ------------------------------------                                             ----------------------
16.07              NTX430AA                                                      Now in module 27
- ------------------------------------                                             ----------------------
16.09              NTX719AA
- ------------------------------------                                             ----------------------
16.10              NTX820AA                                                      Now in module 3
- ------------------------------------                                             ----------------------
16.11              NTX857AA                                                      Removed from load
- ------------------------------------                                             ----------------------
16.12              NTXA27AA
- ------------------------------------                                             ----------------------
16.13              NTXA31AA
- ------------------------------------                                             ----------------------
16.14              NTXA33AA
- ------------------------------------                                             ----------------------
16.15              NTXA72AA
- ------------------------------------                                             ----------------------
16.16              NTXA84AA
- ------------------------------------                                             ----------------------
16.17              NTXE39AA
- ------------------------------------                                             ----------------------
16.18              NTXE62AA                                                      Now in module 19
- ------------------------------------                                             ----------------------
                                                    [CONFIDENTIAL
- ------------------------------------                                             ----------------------
MODULE 17
- ------------------------------------                                             ----------------------
17.01              NTXK18AA                           PORTION                    Now in module 7
- ------------------------------------                                             ----------------------
17.02              NTXK43AA
- ------------------------------------                                             ----------------------
                                    OMITTED]
- -------------------------------------                                             ----------------------
MODULE 18
- ------------------------------------                                             ----------------------
18.01              NTXD14AF                                                      Replaced by NTXD14AG
- ------------------------------------                                             ----------------------
18.02                      NTX407AB
- ------------------------------------                                             ----------------------
18.03              NTXE09AB
- ------------------------------------                                             ----------------------

- ------------------------------------                                             ----------------------
MODULE 19
- ------------------------------------                                             ----------------------
19.01              NTX108AA
- ------------------------------------                                             ----------------------
19.02              NTX946AB
- ------------------------------------                                             ----------------------
19.03              NTXE47AA
- ------------------------------------                                             ----------------------

- ------------------------------------                                             ----------------------
MODULE 20
- ------------------------------------                                             ----------------------
20.01              NTXD14AF                                                      Now in module 18
- ------------------------------------                                             ----------------------
20.02                      NTX415AA                                              Now in module 18
- ------------------------------------                                             ----------------------
20.03                      NTX416AI                                              Now in module 18
- ------------------------------------                                             ----------------------
20.04                      NTX727AD                                              Now in module 18
- -----------------------------------                                             ----------------------
20.05                      NTX991AF                                              Now in module 18
- ------------------------------------                                             ----------------------
20.06                      NTXA52AB                                              Now in module 18
- ------------------------------------                                             ----------------------

- ------------------------------------                                             ----------------------
MODULE 21
- ------------------------------------                                             ----------------------
21.01              NTXK45AB                                                      Now in module 28
- ------------------------------------                                             ----------------------
21.02              NTXA35AA


                                       56
<PAGE>
- -------------------------------------------------------------------------------------------------------
21.03              NTXA80AA
- ------------------------------------                                             ----------------------
MODULE 22
- ------------------------------------                                             ----------------------
22.01              NTXE22AA
- ------------------------------------                                             ----------------------
                                                    [CONFIDENTIAL

- -------------------
MODULE 23
- ------------------------------------                                             ----------------------
23.01              NTXN46AA                           PORTION
- ------------------------------------                                             ----------------------

- ------------------------------------                                             ----------------------
MODULE 24                                             OMITTED]
- ------------------------------------                                             ----------------------
24.01              NTX060AB
- ------------------------------------                                             ----------------------
24.02              NTX060BB
- -------------------------------------------------------------------------------------------------------


</TABLE>



                                       57


<PAGE>
  "[CONFIDENTIAL PORTION OMITTED]" INDICATES THAT INFORMATION HAS BEEN OMITTED
                          AND FILED SEPARATELY WITH THE
           COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT


                                 AMENDMENT NO. 2
                            TO THE TELEWEST GROUP GPA


This Amendment No. 2, dated 29 October 1993, shall be deemed effective as of the
first day of September 1993, by and between the companies listed under Exhibit A
in the General Purchasing Agreement (GPA), dated 1 March 1993 ("Customer"), and
Northern Telecom Europe Limited, ("Supplier").



                                    RECITALS

WHEREAS, Customer and Supplier entered into a General Purchasing Agreement dated
the first day of March 1993; and

WHEREAS, Customer and Supplier amended the General Purchasing Agreement by
entering into Amendment No. 1, dated 1 July 1993; and

WHEREAS, Customer and Supplier agree to amend the GPA pursuant to the terms and
conditions set forth herein.

                                    AGREEMENT

In consideration of the mutual promises and advantages to the parties, the
parties incorporate by reference and agree to the accuracy of the above recitals
and further agree as follows:

TITLE PAGE is hereby amended as follows:

The contract name is hereby amended to include Telecential Communications
Limited Partnership;



                                 TELEWEST GROUP


                     ENCOM CABLE TV & TELECOMMUNICATIONS LTD

                 TELECENTIAL COMMUNICATIONS LIMITED PARTNERSHIP


                          GENERAL PURCHASING AGREEMENT


                                   NTE-GPA0001





                                   PROPRIETARY
    THE INFORMATION CONTAINED HEREIN SHOULD NOT BE DISCLOSED TO UNAUTHORISED
                         PERSONS, IT IS INTENDED FOR USE
          BY AUTHORISED REPRESENTATIVES OF THE PARTIES TO THIS DOCUMENT

<PAGE>
CLAUSE 1.1.6, PAGE 1 is hereby modified as follows:

The definition of "Consortium" is hereby revised to include Telecential
Communications Limited Partnership, now stated as follows:

1.1.6. "Consortium" for the purposes of this Agreement means all Customers
listed under Exhibit A subject to Clause 2.40 entitled 'Several Liability' and
all actions to be taken by Consortium hereunder shall be taken respectively by:
1)TeleWest Communications Group Limited ("TeleWest") as the representative for
those Customers listed as TeleWest wholly owned franchises under Section 1,
Exhibit A and for those Customers listed as Limited Companies under Section 2,
Exhibit A; and 2) Encom Cable TV and Telecommunications Ltd ("Encom") as the
representative for those Customers listed as Encom wholly owned franchises under
Section 3, Exhibit A; AND 3) TELECENTIAL COMMUNICATIONS LIMITED PARTNERSHIP
ENTERING INTO AGREEMENT FOR ITSELF AND ON BEHALF OF TELECENTIAL COMMUNICATIONS
(HERTS) LIMITED PARTNERSHIP AND TELECENTIAL COMMUNICATIONS (NORTHANTS) LIMITED
PARTNERSHIP ("TELECENTIAL") AS THE REPRESENTATIVE FOR THOSE CUSTOMERS LISTED AS
TELECENTIAL WHOLLY OWNED FRANCHISES UNDER SECTION 4, EXHIBIT A.



CLAUSE 2.8, PAGE 6 is hereby amended as follows:

Reference to Exhibit E Appendix 6 for Telecential is hereby added now stated as
follows:

2.8        FINANCING

Supplier agrees to provide financing to those Customers listed in Exhibit E,
Appendix 1, together with the amounts of their individual facilities for up to
[Confidential Portion Omitted] in aggregate Purchases under this Agreement
pursuant to Lease Purchase Agreements substantially in the form of Exhibit E,
Appendix 2 in the case of all Customers under common control with TeleWest;
substantially in the form of Exhibit E, Appendix 3 in the case of Birmingham
Cable Limited and Cable London plc; and substantially in the form of Exhibit E,
Appendix 4 in the case of Windsor Television Limited. SUPPLIER ALSO AGREES TO
PROVIDE FINANCING TO TELECENTIAL, SUBSTANTIALLY IN THE FORM OF EXHIBIT E,
APPENDIX 6. The relevant financing agreement shall be entered into by Supplier
and Customer that elects to finance any Purchases prior to such Customer placing
its initial Order hereunder. In the event that a Customer elects to finance
Purchases in accordance with such Lease Purchase Agreement, Supplier shall issue
invoices for such Purchases in accordance with Clause 2.7, except that such
invoices shall be for the full amount due, and such invoices shall be deemed to
be paid upon inclusion of the amounts covered thereby in an Equipment Schedule
under a Lease Purchase Agreement. The financing of Purchases pursuant to a Lease
Purchase Agreement shall be without prejudice to the rights of Customer under
this Agreement with respect to such Purchases, including without limitation
Customer's right not to accept non-conforming Purchases.


CLAUSE 2.48, PAGE 19 is hereby amended as follows:

Telecential are hereby added as a party to be notified with all correspondence
required under this Agreement, now stated as follows:

2.48       NOTICES

Where written notices, demands, or other communications are required under this
Agreement to be made in writing, they shall be deemed duly given when made in
writing and delivered in hand, or upon receipt when properly addressed by
Recorded or Registered Post or other delivery service to the following
addresses:

                                       2
<PAGE>
         CUSTOMERS :


TeleWest Communications Group Ltd.     Encom Cable TV & Telecommunications Ltd
Attn : Contract Manager                Attn : Contract Manager
Materials Management Department        2 Millharbour
Unit 1, Genesis Business Park          London E14 9TE
Woking, Surrey, GU21 5RW


         TELECENTIAL COMMUNICATIONS LIMITED PARTNERSHIP
         ATTN : CONTRACT MANAGER
         LINK 2 BEACONTREE PLAZA, GILLETTE WAY,
         BASINGSTOKE ROAD,
         READING RG2 0BS

         SUPPLIER :

         Commercial Manager; Cable Telephony
         Northern Telecom Europe Limited
         Public Switching Division
         Northern Telecom House
         St. Cloud Way
         Maidenhead, Berks SL6 8XB

Addresses may be changed by written notices to the parties.



EXHIBIT A, PAGE 30 is hereby amended as follows:

Section 3 is hereby added to incorporate Telecential franchises as Customers,
now stated as follows:

EXHIBIT A         CUSTOMERS

This Exhibit A is attached to and made part of that certain General Purchase
dated 1 March 1993 ("Agreement"), by and between Customer as defined in the
Agreement ("Customer") and Northern Telecom Europe Limited ("Supplier").

PARTNERSHIPS AND REGISTERED ADDRESSES TABLE

<TABLE>
<CAPTION>
      FRANCHISE                 FRANCHISE HOLDER                                          REG. NO.
      ---------                 ----------------                                          --------

<S>                             <C>                                                    <C>
1.    TELEWEST WHOLLY OWNED FRANCHISES
- -------------------------------------------------------------------------------------------------------
      Avon                      Avon Cable Joint Venture

      -------------------------------------------------------------------------------------------------
      Croydon, Kingston and     London South Cable Partnership
      Richmond and Merton and
      Sutton

      -------------------------------------------------------------------------------------------------
      North Thames Estuary      United Artists Communications (Thames Estuary)
      South Thames Estuary      Partnership

      -------------------------------------------------------------------------------------------------
      Edinburgh                 United Artists Communications (Scotland) Venture

      -------------------------------------------------------------------------------------------------
      Tyneside                  United Artists Communications (North East) Partnership

- -------------------------------------------------------------------------------------------------------



                                       3
<PAGE>
- -------------------------------------------------------------------------------------------------------
2.    LIMITED COMPANIES
- -------------------------------------------------------------------------------------------------------
      Birmingham                Birmingham Cable Limited                                     2170379
                                                                                          -------------
      -------------------------------------------------------------------------------------------------
      The registered office          CABLE PHONE HOUSE,
      for the above listed           SMALL HEATH BUSINESS PARK,
      company is:                    TALBOT WAY, SMALL HEATH,
                                     BIRMINGHAM.  B10 OHJ

      -------------------------------------------------------------------------------------------------
      Camden, Enfield,          Cable London plc                                             1794264
      Hackney and Islington,
      Haringey

      ------------------------------------------------------------------------------------
      The registered office          100 CHALK FARM ROAD
      for the above listed           LONDON  NW1 8EH
      company is:

      -------------------------------------------------------------------------------------------------
      Hillingdon                Windsor Television Limited                                   1745542
      Windsor

      --------------------------------------------------------------------------------------------------
      The registered office          CABLE HOUSE
      for the above listed           WATERSIDE DRIVE
      company is:                    LANGLEY, BERKSHIRE.  SL3 6EZ

      -------------------------------------------------------------------------------------------------

                                TeleWest Communications Group Limited                        2514287

                                -----------------------------------------------------------------------

      Cotswolds                 United Artists Communications (Cotswolds) Limited            1743081
- -------------------------------------------------------------------------------------------------------
3.    ENCOM WHOLLY OWNED FRANCHISES

- -------------------------------------------------------------------------------------------------------
      Tower Hamlet/Newham       Encom Cable TV and Telecommunications Ltd                    1870928
      Greater London East
      Havering
      Waltham Forest
      Dartford
      Epping Forest

- -------------------------------------------------------------------------------------------------------
      The registered office          4 CARLTON GARDENS
      for the above listed           PALL MALL
      company is:                    LONDON SW1Y 5AA

- -------------------------------------------------------------------------------------------------------
  4   TELECENTIAL WHOLLY OWNED FRANCHISES

- -------------------------------------------------------------------------------------------------------
      THAMES VALLEY             TELECENTIAL COMMUNICATIONS LIMITED PARTNERSHIP               2387692
      WEST HERTS
      NORTHANTS
      SWINDON
      WARWICKSHIRE
      NORTHAMPTONSHIRE

- -------------------------------------------------------------------------------------------------------
      THE REGISTERED OFFICE          DRAGOON HOUSE
      FOR THE ABOVE LISTED           37 ARTILLERY LANE
      COMPANY IS:                    LONDON E1 7LT
- -------------------------------------------------------------------------------------------------------

</TABLE>

                                       4
<PAGE>
CLAUSE C4.1, PAGE 35 is hereby amended as follows:

A new price per line range for [Confidential Portion Omitted] lines is hereby
added; and

Customer's Purchase Objective is hereby revised from [Confidential Portion
Omitted] lines to [Confidential Portion Omitted] lines;

and linkage between the price per line table and the Purchase Objective is
hereby added, as follows:

  C4.1         Supplier's fully discounted net price per Switch line shown in 
               the table below, includes the
               initial installations and the first two (2) extensions per
               Switch. THE RELEVANT PRICE PER LINE FOR ANY ORDER SHALL BE
               DETERMINED BY APPLYING THE PREVAILING PURCHASE OBJECTIVE
               EFFECTIVE ON THE DATE OF SUCH ORDER, AS DEFINED IN CLAUSE C7, TO
               THE TABLE BELOW.

PRICE PER LINE BASED UPON PURCHASE OBJECTIVE


                         [CONFIDENTIAL PORTION OMITTED]

                           LINES       LINES       LINES      LINES       LINES


PURCHASE OBJECTIVE

- --------------------------
HOST PRICE PER LINE:

- --------------------------
SNSE PRICE PER LINE:                     [CONFIDENTIAL PORTION OMITTED]

- --------------------------
RSC PRICE PER LINE:

- --------------------------
RLCM PRICE PER LINE:

- --------------------------
SRU PRICE PER LINE:


No retrospective price adjustments will be made to previous Purchases upon
Consortium achieving the next pricing level.

The above stated price per line includes the Product(s) as listed in Appendix 2,
entitled "Price Per Line" attached hereto and by this reference incorporated
into this Agreement and Software as defined in Attachment K of the Proposal, and
Services including but not limited to [Confidential Portion Omitted] In the case
of Switch remotes, (RSC, RLCM and SRU), the price includes related [Confidential
Portion Omitted] These prices include all customs and import duties, but exclude
VAT.


                                       5
<PAGE>
CLAUSE C7.1.1 is hereby amended to show Customer's revised Purchase Objective
following the inclusion of Telecential as follows:

  C7.1.1       Customer's initial Purchase Objective is detailed below ("Initial
               Purchase Objective")

                                [Confidential Portion Omitted]


CLAUSE C12.1, PAGE 40 is hereby amended as follows:



[Confidential Portion Omitted]




CLAUSE C12.2, PAGE 40 is hereby amended as follows:



[Confidential Portion Omitted]


C12.2        [Confidential Portion Omitted]


CLAUSE C12.3 is hereby added as follows:

  C12.3        SUPPLIER AGREES TO MAKE GPP AVAILABLE ON ORDERS REQUIRING
               DELIVERY AFTER 1 JANUARY 1995, IN ACCORDANCE WITH A MANAGED
               IMPLEMENTATION PLAN TO BE GENERATED BY 31 DECEMBER 1993, AND
               FORMALLY AGREED TO BY 30 JUNE 1994.



CLAUSE C12.4 is hereby added as follows:

  C12.4        SHOULD SUPPLIER FAIL TO HAVE GPP AVAILABLE IN ACCORDANCE WITH
               SUCH AGREED IMPLEMENTATION PLAN SPECIFIED IN CLAUSE C12.3, THEN
               SUPPLIER SHALL RETROFIT, TO GPP, ALL NON-GPP LINES DELIVERED
               AFTER THE AGREED DATES IN SUCH IMPLEMENTATION PLAN AT NO CHARGE
               TO CUSTOMER AND SHALL NOT CONSIDER SUCH RETROFIT AN EXTENSION FOR
               PRICING PURPOSES STATED IN CLAUSE C4.



CLAUSE C12.5 is hereby added as follows:

  C12.5        THE PROVISIONS OF CLAUSE C12.4 CONSTITUTE SUPPLIER'S SOLE
               LIABILITY AND CUSTOMER'S SOLE REMEDY FOR SUPPLIER'S FAILURE TO
               MEET THE AGREED IMPLEMENTATION PLAN SPECIFIED IN CLAUSE C12.3.



CLAUSE C25.1.3 is hereby added as follows to detail the Marketing Support
provided to Telecential:

SUPPLIER AGREES TO PROVIDE A DEDICATED FULLY SKILLED MARKETING RESOURCE TO
TELECENTIAL FOR A PERIOD OF 3 (THREE) MONTHS.


                                       6
<PAGE>
SIGNATURES

The parties intending to be legally bound have caused this Amendment to be
executed by their duly authorised representatives.



CUSTOMERS                                        SUPPLIER
- -------------------------------------            -------------------------------
TELEWEST COMMUNICATIONS GROUP LIMITED            NORTHERN TELECOM EUROPE LIMITED
- -------------------------------------            -------------------------------


- ----------------------------------               -------------------------------
authorised signature      date                   authorised signature      date

Larry Carleton                                   Pete Meldrum
- ----------------------------------               -------------------------------
print or type name of signatory                  print or type name of signatory


President and Chief Operating Officer,           TeleWestGeneral Manager
- ----------------------------------               -------------------------------
title                                                     title





UNITED ARTISTS COMMUNICATIONS (SCOTLAND) VENTURE
     BY EDINBURGH CABLE LIMITED PARTNERSHIP, ITS GENERAL PARTNER
         BY UNITED ARTISTS CABLE TELEVISION EDINBURGH, INC., GENERAL PARTNER

              BY
                  --------------------------------------------------------
                  authorised signature                        date

                  Larry Carleton
                  --------------------------------------------------------
                  print or type name of signatory

                  President and Chief Operating Officer, TeleWest
                  --------------------------------------------------------
                  title


         BY US WEST CABLE TELECOM, INC., GENERAL PARTNER

              BY
                  --------------------------------------------------------
                  authorised signature                        date

                  Lynn Rexroth
                  --------------------------------------------------------
                  print or type name of signatory

                  Executive Vice-President, Telecoms Services, TeleWest
                  --------------------------------------------------------
                  title


                                       7
<PAGE>
UNITED ARTISTS COMMUNICATIONS (NORTH EAST) PARTNERSHIP
     BY TYNESIDE CABLE LIMITED PARTNERSHIP, ITS GENERAL PARTNER
         BY UNITED ARTISTS CABLE TELEVISION TYNESIDE, INC., GENERAL PARTNER

              BY
                  --------------------------------------------------------
                  authorised signature                        date

                  Larry Carleton
                  --------------------------------------------------------
                  print or type name of signatory

                  President and Chief Operating Officer, TeleWest
                  --------------------------------------------------------
                  title


     BY US WEST CABLE TELECOM, INC., GENERAL PARTNER

              BY
                  --------------------------------------------------------
                  authorised signature                        date

                  Lynn Rexroth
                  --------------------------------------------------------
                  print or type name of signatory

                  Executive Vice-President, Telecoms Services. TeleWest
                  --------------------------------------------------------
                  title





AVON CABLE JOINT VENTURE
     BY AVON CABLE LIMITED PARTNERSHIP, ITS GENERAL PARTNER
         BY UNITED ARTISTS CABLE TELEVISION AVON, INC., GENERAL PARTNER

              BY
                  --------------------------------------------------------
                  authorised signature                        date

                  Larry Carleton
                  --------------------------------------------------------
                  print or type name of signatory

                  President and Chief Operating Officer, TeleWest
                  --------------------------------------------------------
                  title

         BY US WEST CABLE TELECOM, INC., GENERAL PARTNER

              BY
                  --------------------------------------------------------
                  authorised signature                        date

                  Lynn Rexroth
                  --------------------------------------------------------
                  print or type name of signatory


                  Executive Vice-President, Telecoms Services, TeleWest
                  --------------------------------------------------------
                  title



                                       8
<PAGE>
UNITED ARTISTS COMMUNICATIONS (THAMES ESTUARY) PARTNERSHIP
     BY ESTUARIES CABLE LIMITED PARTNERSHIP, GENERAL PARTNER
         BY UNITED ARTISTS CABLE TELEVISION ESTUARIES, INC., GENERAL PARTNER


              BY
                  --------------------------------------------------------
                  authorised signature                        date

                  Larry Carleton
                  --------------------------------------------------------
                  print or type name of signatory

                  President and Chief Operating Officer, TeleWest
                  --------------------------------------------------------
                  title


         BY US WEST CABLE TELECOM, INC., GENERAL PARTNER

              BY
                  --------------------------------------------------------
                  authorised signature                        date

                  Lynn Rexroth
                  --------------------------------------------------------
                  print or type name of signatory

                  Executive Vice-President, Telecoms Services, TeleWest
                  --------------------------------------------------------
                  title





LONDON SOUTH CABLE PARTNERSHIP
     BY UNITED CABLE (LONDON SOUTH) LIMITED PARTNERSHIP, GENERAL PARTNER
         BY UNITED ARTISTS CABLE TELEVISION UK. INC., GENERAL PARTNER

              BY
                  --------------------------------------------------------
                  authorised signature                        date

                  Larry Carleton
                  --------------------------------------------------------
                  print or type name of signatory

                  President and Chief Operating Officer, TeleWest
                  --------------------------------------------------------
                  title


         BY US WEST CABLE TELECOM, INC., GENERAL PARTNER

              BY
                  --------------------------------------------------------
                  authorised signature                        date

                  Lynn Rexroth
                  --------------------------------------------------------
                  print or type name of signatory

                  Executive Vice-President, Telecoms Services, TeleWest
                  --------------------------------------------------------
                  title



                                       9
<PAGE>
CABLE LONDON PLC


- ---------------------------------------------
authorised signature                date

Gerald Campbell
- ---------------------------------------------
print or type name of signatory

Managing Director, Cable London plc
- ---------------------------------------------
title




BIRMINGHAM CABLE LIMITED


- ---------------------------------------------
authorised signature                date

Edward Campbell
- ---------------------------------------------
print or type name of signatory

Managing Director, Birmingham Cable Limited
- ---------------------------------------------
title




WINDSOR TELEVISION LIMITED


- ---------------------------------------------
authorised signature                date

Philippe Galteau
- ---------------------------------------------
print or type name of signatory

Managing Director, The Cable Corporation
- ---------------------------------------------
title




UNITED ARTISTS COMMUNICATIONS (COTSWOLDS) LIMITED


- ---------------------------------------------
authorised signature                date

Larry Carleton
- ---------------------------------------------
print or type name of signatory

President and Chief Operating Officer, TeleWest
- ---------------------------------------------
title



                                       10
<PAGE>
ENCOM CABLE TV AND TELECOMMUNICATIONS


- ---------------------------------------------
authorised signature                date

John Sheridan
- ---------------------------------------------
print or type name of signatory

Managing Director and Chief Executive Officer, ENCOM
- ---------------------------------------------
title




TELECENTIAL COMMUNICATIONS LIMITED PARTNERSHIP


- ---------------------------------------------
authorised signature                date

Vernon Achber
- ---------------------------------------------
print or type name of signatory

        President and Chief Executive Officer, CUC Cablevision (UK) LTD.
   acting for and on behalf of Telecential Communications Limited Partnership
   --------------------------------------------------------------------------
                                     title



                                       11
<PAGE>
      "[CONFIDENTIAL PORTION OMITTED]" INDICATES THAT INFORMATION HAS BEEN
                      OMITTED AND FILED SEPARATELY WITH THE
           COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT


                                 AMENDMENT NO. 3
                            TO THE TELEWEST GROUP GPA

This Amendment No. 3, dated the 12th day of November 1993, shall be deemed
effective as of the first day of November 1993, by and between the companies
listed under Exhibit A in the General Purchasing Agreement (GPA), dated 1 March
1993 ("Customer"), and Northern Telecom Europe Limited, ("Supplier").

                                    RECITALS

WHEREAS, Customer and Supplier entered into a General Purchasing Agreement dated
the first day of March 1993; and

WHEREAS, Customer and Supplier amended the General Purchasing Agreement by
entering into Amendment No. 1, dated 1 July 1993; and

WHEREAS, Customer and Supplier amended the General Purchasing Agreement by
entering into Amendment No. 2, dated 29 October 1993; and

WHEREAS, Customer and Supplier agree to further amend the GPA pursuant to the
terms and conditions set forth herein.


                                    AGREEMENT

In consideration of the mutual promises and advantages to the parties, the
parties incorporate by reference and agree to the accuracy of the above recitals
and further agree as follows:

CLAUSE 2.8, PAGE 6 is hereby amended as follows:

Reference to Exhibit E Appendix 5 for United Artists (Scotland) Venture and
United Artists (Cotswolds) Limited is hereby added, now stated as follows:

2.8        FINANCING

Supplier agrees to provide financing to those Customers listed in Exhibit E,
Appendix 1, together with the amounts of their individual facilities for up to
[Confidential Portion Omitted] in aggregate Purchases under this Agreement
pursuant to Lease Purchase Agreements substantially in the form of Exhibit E,
Appendix 2 in the case of all Customers under common control with TeleWest;
substantially in the form of Exhibit E, Appendix 3 in the case of Birmingham
Cable Limited and Cable London plc; and substantially in the form of Exhibit E,
Appendix 4 in the case of Windsor Television Limited. Supplier also agrees to
provide financing: 1) TO UNITED ARTISTS (SCOTLAND) VENTURE AND UNITED ARTISTS
(COTSWOLDS) LIMITED, TO A COMBINED FACILITY OF UP TO [CONFIDENTIAL PORTION
OMITTED] IN AGGREGATE PURCHASES UNDER THIS AGREEMENT PURSUANT TO LEASE PURCHASE
AGREEMENTS SUBSTANTIALLY IN THE FORM OF EXHIBIT E, APPENDIX 5 AND 2) to
Telecential, substantially in the form of Exhibit E, Appendix 6. The relevant
financing agreement shall be entered into by Supplier and Customer that elects
to finance any Purchases prior to such Customer placing its initial Order
hereunder. In the event that a Customer elects to finance Purchases in
accordance with such Lease Purchase Agreement, 

<PAGE>
Supplier shall issue invoices for such Purchases in accordance with Clause 2.7,
except that such invoices shall be for the full amount due, and such invoices
shall be deemed to be paid upon inclusion of the amounts covered thereby in an
Equipment Schedule under a Lease Purchase Agreement. The financing of Purchases
pursuant to a Lease Purchase Agreement shall be without prejudice to the rights
of Customer under this Agreement with respect to such Purchases, including
without limitation Customer's right not to accept non-conforming Purchases.

EXHIBIT A, PAGE 30 is hereby amended as follows:

Windsor Television's franchise name for Hillingdon is corrected with the
addition of Hounslow and the new Scotland franchises are listed against United
Artists Communications (Scotland) Venture, now stated as follows:

<TABLE>
<CAPTION>
      FRANCHISE                 FRANCHISE HOLDER                                          REG. NO.

<S>                             <C>                                                       <C>
1.    TELEWEST WHOLLY OWNED FRANCHISES
- -------------------------------------------------------------------------------------------------------
      Avon                      Avon Cable Joint Venture

      -------------------------------------------------------------------------------------------------
      Croydon, Kingston and     London South Cable Partnership
      Richmond and Merton and
      Sutton

      -------------------------------------------------------------------------------------------------
      North Thames Estuary      United Artists Communications (Thames Estuary)
      South Thames Estuary      Partnership

      -------------------------------------------------------------------------------------------------
      Edinburgh and             United Artists Communications (Scotland) Venture
      Livingston, Uddingston,
      Glenrothes, Dundee and
      Perth.

      -------------------------------------------------------------------------------------------------
      Tyneside                  United Artists Communications (North East) Partnership

- -------------------------------------------------------------------------------------------------------
2.    LIMITED COMPANIES

      Birmingham                Birmingham Cable Limited                                     2170379

      -------------------------------------------------------------------------------------------------
      The registered office          CABLE PHONE HOUSE,
      for the above listed           SMALL HEATH BUSINESS PARK,
      company is:                    TALBOT WAY, SMALL HEATH,
                                     BIRMINGHAM.  B10 OHJ

      -------------------------------------------------------------------------------------------------
      Camden, Enfield,          Cable London plc                                             1794264
      Hackney and Islington,
      Haringey
      -------------------------------------------------------------------------------------------------
      The registered office          100 CHALK FARM ROAD
      for the above listed           LONDON  NW1 8EH
      company is:

      -------------------------------------------------------------------------------------------------
      Hillingdon AND            Windsor Television Limited                                   1745542
      Hounslow,   Windsor
      -------------------------------------------------------------------------------------------------
      The registered office          CABLE HOUSE
      for the above listed           WATERSIDE DRIVE
      company is:                    LANGLEY, BERKSHIRE.  SL3 6EZ

      -------------------------------------------------------------------------------------------------

      Cotswolds                 TeleWest Communications Group Limited                        2514287

                                United Artists Communications (Cotswolds) Limited            1743081


                                       2
<PAGE>
- -------------------------------------------------------------------------------------------------------
3.    ENCOM WHOLLY OWNED FRANCHISES

- -------------------------------------------------------------------------------------------------------
      Tower Hamlet/Newham       Encom Cable TV and Telecommunications Ltd                    1870928
      Greater London East
      Havering
      Waltham Forest
      Dartford
      Epping Forest

      -------------------------------------------------------------------------------------------------
      The registered office          4 CARLTON GARDENS
      for the above listed           PALL MALL
      company is:                    LONDON SW1Y 5AA

- -------------------------------------------------------------------------------------------------------
  4   TELECENTIAL WHOLLY OWNED FRANCHISES

- -------------------------------------------------------------------------------------------------------
      Thames Valley             Telecential Communications Limited Partnership               2387692
      West Herts
      Northants
      Swindon
      Warwickshire
      Northamptonshire

      -------------------------------------------------------------------------------------------------
      The registered office          DRAGOON HOUSE
      for the above listed           37 ARTILLERY LANE
      company is:                    LONDON E1 7LT

- -------------------------------------------------------------------------------------------------------


</TABLE>

CLAUSE C4.1, PAGE 35 is hereby amended as follows:

Customer's Purchase Objective is hereby revised from [Confidential Portion
Omitted] lines to [Confidential Portion Omitted]

  C4.1         Supplier's fully discounted net price per Switch line shown in
               the table below, includes the initial installations and the first
               two (2) extensions per Switch. The relevant price per line for
               any Order shall be determined by applying the prevailing Purchase
               Objective effective on the date of such Order, as defined in
               Clause C7, to the table below.


PRICE PER LINE BASED UPON PURCHASE OBJECTIVE


                         [CONFIDENTIAL PORTION OMITTED]

                           LINES       LINES      LINES       LINES        LINES

- --------------------------
PURCHASE OBJECTIVE

- --------------------------
HOST PRICE PER LINE:

- --------------------------
SNSE PRICE PER LINE:

- --------------------------
RSC PRICE PER LINE:                      [Confidential Portion Omitted

- --------------------------
RLCM PRICE PER LINE:

- --------------------------
SRU PRICE PER LINE:


                                       3
<PAGE>
   No retrospective price adjustments will be made to previous Purchases upon
   Consortium achieving the next pricing level. The above stated price per line
   includes the Product(s) as listed in Appendix 2, entitled "Price Per Line"
   attached hereto and by this reference incorporated into this Agreement and
   Software as defined in Attachment K of the Proposal, and Services including
   but not limited [Confidential Portion Omitted] In the case of Switch remotes,
   (RSC, RLCM and SRU), the price includes [Confidential Portion Omitted]. These
   prices include all customs and import duties, but exclude VAT.



CLAUSE C7.1.1 is hereby amended to show Customer's revised Purchase Objective
following the inclusion of TeleWest's Scotland franchises, as follows:

  C7.1.1       Customer's initial Purchase Objective is detailed below ("Initial
               Purchase Objective")

                         [Confidential Portion Omitted]


CLAUSE C19 PAGE 41 is hereby amended as follows:

C19        EMERGENCY REPLACEMENT

  C19.1        In the event that an emergency or catastrophic event affects any
               Switch which Customer has purchased from Supplier, Supplier
               agrees to immediately provide an emergency back-up Switch which
               may be utilised by Customer until a replacement Switch arrives.
               Supplier agrees to retain such emergency back-up Switch as well
               as an emergency stock of Product(s), Software and sufficient
               numbers of trained personnel to provide Services in the event of
               an emergency. Such Switch shall be capable of serving not less
               than 1,000 lines. In the event Customer orders a replacement
               Switch from Supplier, Supplier agrees that such Switch shall have
               emergency priority in Supplier's manufacturing and production
               schedule.

  C19.2        Supplier shall provide to Customer a telephone number at which
               Customer may obtain emergency replacement parts twenty four (24)
               hours a day, seven (7) days a week.

  C19.3        SUPPLIER SHALL HAVE AVAILABLE SUCH EMERGENCY SWITCH DESCRIBED
               HEREUNDER BY A DATE TO BE MUTUALLY AGREED.

  C19.4        CONSORTIUM AND SUPPLIER AGREE TO WORK TOGETHER IN FORMULATING A
               DETAILED DISASTER RECOVERY CONTINGENCY PLAN, INCLUDING TECHNICAL
               SPECIFICATION, TIMES SCALES AND COMMERCIAL TERMS, IN THE EVENT
               THAT AN EMERGENCY OR CATASTROPHIC EVENT AFFECTS ANY SWITCH WHICH
               CUSTOMER HAS PURCHASED FROM SUPPLIER.

CLAUSE C24.1, PAGE 44 is hereby amended as follows:

The initial training days are hereby increased from one hundred fifty (150)
student days to one hundred seventy (170) student days, now stated as follows:

  C24.1        Upon execution of this Agreement, Supplier will provide an
               initial credit for ONE HUNDRED AND SEVENTY (170) student days of
               training ("Training Credit") for the Consortium; one hundred
               TWENTY (120) student days for TeleWest and fifty (50) student
               days for Encom. In addition, for each Switch Ordered by Customer,
               Supplier shall provide an additional forty (40) student days per
               Switch Ordered hereunder by Customer. Training Credits may be
               pooled and allocated by Customer at its discretion.


                                       4
<PAGE>
SIGNATURES

The parties intending to be legally bound have caused this Amendment to be
executed by their duly authorised representatives.



CUSTOMERS                                       SUPPLIER
- -------------------------------------           -------------------------------
TELEWEST COMMUNICATIONS GROUP LIMITED           NORTHERN TELECOM EUROPE LIMITED
- -------------------------------------           -------------------------------


- ------------------------------------            --------------------------------
authorised signature      date                  authorised signature       date

Larry Carleton                                  Pete Meldrum
- ------------------------------------            --------------------------------
print or type name of signatory                 print or type name of signatory


President and Chief Operating Officer,          TeleWestGeneral Manager
- ------------------------------------            --------------------------------
title                                                     title





UNITED ARTISTS COMMUNICATIONS (SCOTLAND) VENTURE
     BY EDINBURGH CABLE LIMITED PARTNERSHIP, ITS GENERAL PARTNER
         BY UNITED ARTISTS CABLE TELEVISION EDINBURGH, INC., GENERAL PARTNER

              BY
                  ----------------------------------------------------------
                  authorised signature                        date

                  Larry Carleton
                  ----------------------------------------------------------
                  print or type name of signatory

                  President and Chief Operating Officer, TeleWest
                  ----------------------------------------------------------
                  title


         BY US WEST CABLE TELECOM, INC., GENERAL PARTNER

              BY
                  ----------------------------------------------------------
                  authorised signature                        date

                  Lynn Rexroth
                  ----------------------------------------------------------
                  print or type name of signatory

                  Executive Vice-President, Telecoms Services, TeleWest
                  ----------------------------------------------------------
                  title


                                       5
<PAGE>
UNITED ARTISTS COMMUNICATIONS (NORTH EAST) PARTNERSHIP
     BY TYNESIDE CABLE LIMITED PARTNERSHIP, ITS GENERAL PARTNER
         BY UNITED ARTISTS CABLE TELEVISION TYNESIDE, INC., GENERAL PARTNER

              BY
                  ----------------------------------------------------------
                  authorised signature                        date

                  Larry Carleton
                  ----------------------------------------------------------
                  print or type name of signatory

                  President and Chief Operating Officer, TeleWest
                  ----------------------------------------------------------
                  title


     BY US WEST CABLE TELECOM, INC., GENERAL PARTNER

              BY
                  ----------------------------------------------------------
                  authorised signature                        date

                  Lynn Rexroth
                  ----------------------------------------------------------
                  print or type name of signatory

                  Executive Vice-President, Telecoms Services. TeleWest
                  ----------------------------------------------------------
                  title





AVON CABLE JOINT VENTURE
     BY AVON CABLE LIMITED PARTNERSHIP, ITS GENERAL PARTNER
         BY UNITED ARTISTS CABLE TELEVISION AVON, INC., GENERAL PARTNER

              BY
                  ----------------------------------------------------------
                  authorised signature                        date

                  Larry Carleton
                  ----------------------------------------------------------
                  print or type name of signatory

                  President and Chief Operating Officer, TeleWest
                  ----------------------------------------------------------
                  title

         BY US WEST CABLE TELECOM, INC., GENERAL PARTNER

              BY
                  ----------------------------------------------------------
                  authorised signature                        date

                  Lynn Rexroth
                  ----------------------------------------------------------
                  print or type name of signatory

                  Executive Vice-President, Telecoms Services, TeleWest
                  ----------------------------------------------------------
                  title



                                       6
<PAGE>
UNITED ARTISTS COMMUNICATIONS (THAMES ESTUARY) PARTNERSHIP
     BY ESTUARIES CABLE LIMITED PARTNERSHIP, GENERAL PARTNER
         BY UNITED ARTISTS CABLE TELEVISION ESTUARIES, INC., GENERAL PARTNER

              BY
                  ----------------------------------------------------------
                  authorised signature                        date

                  Larry Carleton
                  ----------------------------------------------------------
                  print or type name of signatory

                  President and Chief Operating Officer, TeleWest
                  ----------------------------------------------------------
                  title


         BY US WEST CABLE TELECOM, INC., GENERAL PARTNER

              BY
                  ----------------------------------------------------------
                  authorised signature                        date

                  Lynn Rexroth
                  ----------------------------------------------------------
                  print or type name of signatory

                  Executive Vice-President, Telecoms Services, TeleWest
                  ----------------------------------------------------------
                  title





LONDON SOUTH CABLE PARTNERSHIP
     BY UNITED CABLE (LONDON SOUTH) LIMITED PARTNERSHIP, GENERAL PARTNER
         BY UNITED ARTISTS CABLE TELEVISION UK. INC., GENERAL PARTNER

              BY
                  ----------------------------------------------------------
                  authorised signature                        date

                  Larry Carleton
                  ----------------------------------------------------------
                  print or type name of signatory

                  President and Chief Operating Officer, TeleWest
                  ----------------------------------------------------------
                  title


         BY US WEST CABLE TELECOM, INC., GENERAL PARTNER

              BY
                  ----------------------------------------------------------
                  authorised signature                        date

                  Lynn Rexroth
                  ----------------------------------------------------------
                  print or type name of signatory

                  Executive Vice-President, Telecoms Services, TeleWest
                  ----------------------------------------------------------
                  title



                                       7
<PAGE>
CABLE LONDON PLC


- --------------------------------------------------
authorised signature                date

Gerald Campbell
- --------------------------------------------------
print or type name of signatory

Managing Director, Cable London plc
- --------------------------------------------------
title




BIRMINGHAM CABLE LIMITED


- --------------------------------------------------
authorised signature                date

Edward Campbell
- --------------------------------------------------
print or type name of signatory


Managing Director, Birmingham Cable Limited
- --------------------------------------------------
title




WINDSOR TELEVISION LIMITED


- --------------------------------------------------
authorised signature                date

Phillipe Gateau
- --------------------------------------------------
print or type name of signatory

Director, Windsor Television Limited
- --------------------------------------------------
title




UNITED ARTISTS COMMUNICATIONS (COTSWOLDS) LIMITED


- --------------------------------------------------
authorised signature                date

Larry Carleton
- --------------------------------------------------
print or type name of signatory

President and Chief Operating Officer, TeleWest
- --------------------------------------------------
title



                                       8
<PAGE>
ENCOM CABLE TV AND TELECOMMUNICATIONS


- --------------------------------------------------
authorised signature                date

John Sheridan
- --------------------------------------------------
print or type name of signatory

Managing Director and Chief Executive Officer, ENCOM
- --------------------------------------------------
title




TELECENTIAL COMMUNICATIONS LIMITED PARTNERSHIP


- --------------------------------------------------
authorised signature                date

Vernon Achber
- --------------------------------------------------
print or type name of signatory

        President and Chief Executive Officer, CUC Cablevision (UK) LTD.
   acting for and on behalf of Telecential Communications Limited Partnership
   --------------------------------------------------------------------------
                                     title




                                       9
<PAGE>
      "[CONFIDENTIAL PORTION OMITTED]" INDICATES THAT INFORMATION HAS BEEN
                      OMITTED AND FILED SEPARATELY WITH THE
           COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT

                                 AMENDMENT NO. 4
                            TO THE TELEWEST GROUP GPA

This Amendment No. 4, dated the 10th day of December 1993, shall be deemed
effective as of the first day of December 1993, by and between the companies
listed under Exhibit A in the General Purchasing Agreement (GPA), dated 1 March
1993 ("Customer"), and Northern Telecom Europe Limited, ("Supplier").

                                    RECITALS

WHEREAS, Customer and Supplier entered into a General Purchasing Agreement dated
the first day of March 1993; and

WHEREAS, Customer and Supplier amended the General Purchasing Agreement by
entering into Amendment No. 1, dated 1 July 1993; and

WHEREAS, Customer and Supplier amended the General Purchasing Agreement by
entering into Amendment No. 2, dated 29 October 1993; and

WHEREAS, Customer and Supplier amended the General Purchasing Agreement by
entering into Amendment No. 3, dated 12 November 1993; and

WHEREAS, Customer and Supplier agree to further amend the GPA pursuant to the
terms and conditions set forth herein.

                                    AGREEMENT

In consideration of the mutual promises and advantages to the parties, the
parties incorporate by reference and agree to the accuracy of the above recitals
and further agree as follows:

TITLE PAGE is hereby amended as follows:

The contract name is hereby amended to include Jones Cable Group Limited;


<PAGE>

                                 TELEWEST GROUP


                     ENCOM CABLE TV & TELECOMMUNICATIONS LTD

                 TELECENTIAL COMMUNICATIONS LIMITED PARTNERSHIP

                            JONES CABLE GROUP LIMITED

                          GENERAL PURCHASING AGREEMENT


                                   NTE-GPA0001







                                       2
<PAGE>
CLAUSE 1.1.6, PAGE 1 is hereby modified as follows:

The definition of "Consortium" is hereby revised to include Jones Cable Group
Limited, now stated as follows: 1.1.6. "Consortium" for the purposes of this
Agreement means all Customers listed under Exhibit A subject to Clause 2.40
entitled 'Several Liability' and all actions to be taken by Consortium hereunder
shall be taken respectively by: 1)TeleWest Communications Group Limited
("TeleWest") as the representative for those Customers listed as TeleWest wholly
owned franchises under Section 1, Exhibit A and for those Customers listed as
Limited Companies under Section 2, Exhibit A; and 2) Encom Cable TV and
Telecommunications Ltd ("Encom") as the representative for those Customers
listed as Encom wholly owned franchises under Section 3, Exhibit A; and 3)
Telecential Communications Limited Partnership entering into agreement for
itself and on behalf of Telecential Communications (Herts) Limited Partnership
and Telecential Communications (Northants) Limited Partnership ("Telecential")
as the representative for those Customers listed as Telecential wholly owned
franchises under Section 4, Exhibit A AND 4) JONES CABLE GROUP LIMITED ("JONES")
as the representative for those Customers listed as Jones wholly owned
franchises under Section 5 Exhibit A;

CLAUSE 2.8, PAGE 6 is hereby amended as follows:

Reference to Exhibit E Appendix 7 for Jones Cable Group Limited is hereby added
now stated as follows: 2.8 FINANCING Supplier agrees to provide financing to
those Customers listed in Exhibit E, Appendix 1, together with the amounts of
their individual facilities for up to [Confidential Portion Omitted] in
aggregate Purchases under this Agreement pursuant to Lease Purchase Agreements
substantially in the form of Exhibit E, Appendix 2 in the case of all Customers
under common control with TeleWest; substantially in the form of Exhibit E,
Appendix 3 in the case of Birmingham Cable Limited and Cable London plc; and
substantially in the form of Exhibit E, Appendix 4 in the case of Windsor
Television Limited. Supplier also agrees to provide financing: 1) to United
Artists (Scotland) Venture and United Artists (Cotswolds) Limited, to a combined
facility of up to [Confidential Portion Omitted] in aggregate Purchases under
this Agreement pursuant to Lease Purchase Agreements substantially in the form
of Exhibit E, Appendix 5; 2) to Telecential, substantially in the form of
Exhibit E, Appendix 6; AND 3) JONES CABLE GROUP LIMITED SUBSTANTIALLY IN THE
FORM OF EXHIBIT E APPENDIX 7. The relevant financing agreement shall be entered
into by Supplier and Customer that elects to finance any Purchases prior to such
Customer placing its initial Order hereunder. In the event that a Customer
elects to finance Purchases in accordance with such Lease Purchase Agreement,
Supplier shall issue invoices for such Purchases in accordance with Clause 2.7,
except that such invoices shall be for the full amount due, and such invoices
shall be deemed to be paid upon inclusion of the amounts covered thereby in an
Equipment Schedule under a Lease Purchase Agreement. The financing of Purchases
pursuant to a Lease Purchase Agreement shall be without prejudice to the rights
of Customer under this Agreement with respect to such Purchases, including
without limitation Customer's right not to accept non-conforming Purchases.

CLAUSE 2.48, PAGE 19 is hereby amended as follows:

Jones are hereby added as a party to be notified with all correspondence
required under this Agreement, now stated as follows:

2.48       NOTICES

Where written notices, demands, or other communications are required under this
Agreement to be made in writing, they shall be deemed duly given when made in
writing and delivered in hand, or upon receipt when properly addressed by
Recorded or Registered Post or other delivery service to the following
addresses:


                                       2
<PAGE>
         CUSTOMERS :


TeleWest Communications Group Ltd.       Encom Cable TV & Telecommunications Ltd
Attn : Contract Manager                  Attn : Contract Manager
Materials Management Department          2 Millharbour
Unit 1, Genesis Business Park            London E14 9TE
Woking, Surrey, GU21 5RW


Telecential Communications Ltd Partnership  Jones Cable Group Limited
Attn : Contract Manager                     Attn : Contract Manager
Link 2 Beacontree Plaza, Gillette Way,      Jones House
Basingstoke Road,                           9 Greycaine Road
Reading RG2 0BS                             Watford Hertfordshire WD2 4JP

SUPPLIER :

Commercial Manager; Cable Telephony
Northern Telecom Europe Limited
Public Switching Division
Northern Telecom House
St. Cloud Way
Maidenhead, Berks SL6 8XB

Addresses may be changed by written notices to the parties.

EXHIBIT A, PAGE 30 is hereby amended as follows:

Section 3 is hereby added to incorporate Jones franchises as Customers, now
stated as follows:


EXHIBIT A         CUSTOMERS

This Exhibit A is attached to and made part of that certain General Purchase
dated 1 March 1993 ("Agreement"), by and between Customer as defined in the
Agreement ("Customer") and Northern Telecom Europe Limited ("Supplier").

<TABLE>
<CAPTION>

      FRANCHISE                 FRANCHISE HOLDER                                          REG. NO.
      ---------                 ----------------                                          --------

<S>                             <C>                                                      <C>
1.    TELEWEST WHOLLY OWNED FRANCHISES
- -------------------------------------------------------------------------------------------------------
      Avon                      Avon Cable Joint Venture

      -------------------------------------------------------------------------------------------------
      Croydon, Kingston and     London South Cable Partnership
      Richmond and Merton and
      Sutton

      -------------------------------------------------------------------------------------------------
      North Thames Estuary      United Artists Communications (Thames Estuary)
      South Thames Estuary      Partnership


                                       4
<PAGE>
      -------------------------------------------------------------------------------------------------
      Edinburgh and             United Artists Communications (Scotland) Venture
      Livingston, Uddingston,
      Glenrothes, Dundee and
      Perth.

      -------------------------------------------------------------------------------------------------
      Tyneside                  United Artists Communications (North East) Partnership
- -------------------------------------------------------------------------------------------------------

2.    LIMITED COMPANIES

      Birmingham                Birmingham Cable Limited                                     2170379

      -------------------------------------------------------------------------------------------------
      The registered office          CABLE PHONE HOUSE,
      for the above listed           SMALL HEATH BUSINESS PARK,
      company is:                    TALBOT WAY, SMALL HEATH,
                                     BIRMINGHAM.  B10 OHJ

      -------------------------------------------------------------------------------------------------
      Camden, Enfield,          Cable London plc                                             1794264
      Hackney and Islington,
      Haringey
      -------------------------------------------------------------------------------------------------
      The registered office          100 CHALK FARM ROAD
      for the above listed           LONDON  NW1 8EH
      company is:

      -------------------------------------------------------------------------------------------------
      Hillingdon and Hounslow,  Windsor Television Limited                                   1745542
      Windsor
      -------------------------------------------------------------------------------------------------
      The registered office          CABLE HOUSE
      for the above listed           WATERSIDE DRIVE
      company is:                    LANGLEY, BERKSHIRE.  SL3 6EZ

      -------------------------------------------------------------------------------------------------

      Cotswolds                 TeleWest Communications Group Limited                        2514287

                                United Artists Communications (Cotswolds) Limited            1743081
- -------------------------------------------------------------------------------------------------------

3.    ENCOM WHOLLY OWNED FRANCHISES

      Tower Hamlet/Newham       Encom Cable TV and Telecommunications Ltd                    1870928
      Greater London East
      Havering
      Waltham Forest
      Dartford
      Epping Forest

      -------------------------------------------------------------------------------------------------
      The registered office          4 CARLTON GARDENS
      for the above listed           PALL MALL
      company is:                    LONDON SW1Y 5AA

- -------------------------------------------------------------------------------------------------------
  4   TELECENTIAL WHOLLY OWNED FRANCHISES
- -------------------------------------------------------------------------------------------------------
      Thames Valley             Telecential Communications Limited Partnership               2387692
      West Herts
      Northants
      Swindon
      Warwickshire
      Northamptonshire


                                       5
<PAGE>
      -------------------------------------------------------------------------------------------------
      The registered office          DRAGOON HOUSE
      for the above listed           37 ARTILLERY LANE
      company is:                    LONDON E1 7LT

- -------------------------------------------------------------------------------------------------------
  5   JONES WHOLLY OWNED FRANCHISES

- -------------------------------------------------------------------------------------------------------
      South Herts               Jones Cable Group of South Hertfordshire Limited

      -------------------------------------------------------------------------------------------------
      Leeds                     Jones Cable Group of Leeds Limited
- -------------------------------------------------------------------------------------------------------

</TABLE>









                                       6
<PAGE>
CLAUSE C4.1, PAGE 35 is hereby amended as follows:
Customer's Purchase Objective is hereby revised from [Confidential Portion 
Omitted] lines to [Confidential Portion Omitted]

  C4.1         Supplier's fully discounted net price per Switch line shown in
               the table below, includes the initial installations and the first
               two (2) extensions per Switch. The relevant price per line for
               any Order shall be determined by applying the prevailing Purchase
               Objective effective on the date of such Order, as defined in
               Clause C7, to the table below.


PRICE PER LINE BASED UPON PURCHASE OBJECTIVE


                         [Confidential Portion Omitted]


                       LINES       LINES       LINES         LINES        LINES


PURCHASE OBJECTIVE

- --------------------------
HOST PRICE PER LINE:

- --------------------------
SNSE PRICE PER LINE:

- --------------------------
RSC PRICE PER LINE:                       [Confidential Portion Omitted]

- --------------------------
RLCM PRICE PER LINE:

- --------------------------
SRU PRICE PER LINE:


   No retrospective price adjustments will be made to previous Purchases upon
   Consortium achieving the next pricing level. The above stated price per line
   includes the Product(s) as listed in Appendix 2, entitled "Price Per Line"
   attached hereto and by this reference incorporated into this Agreement and
   Software as defined in Attachment K of the Proposal, and Services including
   but not limited to [Confidential Portion Omitted] In the case of Switch
   remotes, (RSC, RLCM and SRU), the price includes [Confidential Portion
   Omitted] These prices include all customs and import duties, but exclude VAT.



CLAUSE C7.1.1 is hereby amended to show Customer's revised Purchase Objective
following the inclusion of Jones' franchises, as follows:



    C7.1.1    Customer's initial Purchase Objective is detailed below 
               ("Initial Purchase Objective")


                         [Confidential Portion Omitted]


CLAUSE C12.2, PAGE 40 is hereby amended as follows:


                         [Confidential Portion Omitted]


                                       7
<PAGE>
CLAUSE C25.1.3, AMENDMENT 2 PAGE 7 is hereby amended as follows to detail the
Marketing Support provided to Jones:



Supplier agrees to provide a dedicated fully skilled marketing resource to
Telecential for a period of 3 (three) months AND ALSO TO PROVIDE A DEDICATED
FULLY SKILLED MARKETING RESOURCE TO JONES FOR A PERIOD OF 3 (THREE) MONTHS.





                                       8
<PAGE>
SIGNATURES

The parties intending to be legally bound have caused this Amendment to be
executed by their duly authorised representatives.



CUSTOMERS                                       SUPPLIER
- -------------------------------------           -------------------------------
TELEWEST COMMUNICATIONS GROUP LIMITED           NORTHERN TELECOM EUROPE LIMITED
- -------------------------------------           -------------------------------


- ------------------------------------            --------------------------------
authorised signature      date                  authorised signature       date

Larry Carleton                                  Pete Meldrum
- ------------------------------------            --------------------------------
print or type name of signatory                 print or type name of signatory


President and Chief Operating Officer,          TeleWestGeneral Manager
- ------------------------------------            --------------------------------
title                                                     title





UNITED ARTISTS COMMUNICATIONS (SCOTLAND) VENTURE
     BY EDINBURGH CABLE LIMITED PARTNERSHIP, ITS GENERAL PARTNER
         BY UNITED ARTISTS CABLE TELEVISION EDINBURGH, INC., GENERAL PARTNER

              BY
                  ----------------------------------------------------------
                  authorised signature                        date

                  Larry Carleton
                  ----------------------------------------------------------
                  print or type name of signatory

                  President and Chief Operating Officer, TeleWest
                  ----------------------------------------------------------
                  title


         BY US WEST CABLE TELECOM, INC., GENERAL PARTNER

              BY
                  ----------------------------------------------------------
                  authorised signature                        date

                  Lynn Rexroth
                  ----------------------------------------------------------
                  print or type name of signatory

                  Executive Vice-President, Telecoms Services, TeleWest
                  ----------------------------------------------------------
                  title


                                       9
<PAGE>
UNITED ARTISTS COMMUNICATIONS (NORTH EAST) PARTNERSHIP
     BY TYNESIDE CABLE LIMITED PARTNERSHIP, ITS GENERAL PARTNER
         BY UNITED ARTISTS CABLE TELEVISION TYNESIDE, INC., GENERAL PARTNER

              BY
                  ----------------------------------------------------------
                  authorised signature                        date

                  Larry Carleton
                  ----------------------------------------------------------
                  print or type name of signatory

                  President and Chief Operating Officer, TeleWest
                  ----------------------------------------------------------
                  title


     BY US WEST CABLE TELECOM, INC., GENERAL PARTNER

              BY
                  ----------------------------------------------------------
                  authorised signature                        date

                  Lynn Rexroth
                  ----------------------------------------------------------
                  print or type name of signatory

                  Executive Vice-President, Telecoms Services. TeleWest
                  ----------------------------------------------------------
                  title





AVON CABLE JOINT VENTURE
     BY AVON CABLE LIMITED PARTNERSHIP, ITS GENERAL PARTNER
         BY UNITED ARTISTS CABLE TELEVISION AVON, INC., GENERAL PARTNER

              BY
                  ----------------------------------------------------------
                  authorised signature                        date

                  Larry Carleton
                  ----------------------------------------------------------
                  print or type name of signatory

                  President and Chief Operating Officer, TeleWest
                  ----------------------------------------------------------
                  title

         BY US WEST CABLE TELECOM, INC., GENERAL PARTNER

              BY
                  ----------------------------------------------------------
                  authorised signature                        date

                  Lynn Rexroth
                  ----------------------------------------------------------
                  print or type name of signatory

                  Executive Vice-President, Telecoms Services, TeleWest
                  ----------------------------------------------------------
                  title



                                       10
<PAGE>
UNITED ARTISTS COMMUNICATIONS (THAMES ESTUARY) PARTNERSHIP
     BY ESTUARIES CABLE LIMITED PARTNERSHIP, GENERAL PARTNER
         BY UNITED ARTISTS CABLE TELEVISION ESTUARIES, INC., GENERAL PARTNER

              BY
                  ----------------------------------------------------------
                  authorised signature                        date

                  Larry Carleton
                  ----------------------------------------------------------
                  print or type name of signatory

                  President and Chief Operating Officer, TeleWest
                  ----------------------------------------------------------
                  title


         BY US WEST CABLE TELECOM, INC., GENERAL PARTNER

              BY
                  ----------------------------------------------------------
                  authorised signature                        date

                  Lynn Rexroth
                  ----------------------------------------------------------
                  print or type name of signatory

                  Executive Vice-President, Telecoms Services, TeleWest
                  ----------------------------------------------------------
                  title





LONDON SOUTH CABLE PARTNERSHIP
     BY UNITED CABLE (LONDON SOUTH) LIMITED PARTNERSHIP, GENERAL PARTNER
         BY UNITED ARTISTS CABLE TELEVISION UK. INC., GENERAL PARTNER

              BY
                  ----------------------------------------------------------
                  authorised signature                        date

                  Larry Carleton
                  ----------------------------------------------------------
                  print or type name of signatory

                  President and Chief Operating Officer, TeleWest
                  ----------------------------------------------------------
                  title


         BY US WEST CABLE TELECOM, INC., GENERAL PARTNER

              BY
                  ----------------------------------------------------------
                  authorised signature                        date

                  Lynn Rexroth
                  ----------------------------------------------------------
                  print or type name of signatory

                  Executive Vice-President, Telecoms Services, TeleWest
                  ----------------------------------------------------------
                  title



                                       11
<PAGE>
CABLE LONDON PLC


- --------------------------------------------------
authorised signature                date

Gerald Campbell
- --------------------------------------------------
print or type name of signatory

Managing Director, Cable London plc
- --------------------------------------------------
title




BIRMINGHAM CABLE LIMITED


- --------------------------------------------------
authorised signature                date

Edward Campbell
- --------------------------------------------------
print or type name of signatory


Managing Director, Birmingham Cable Limited
- --------------------------------------------------
title




WINDSOR TELEVISION LIMITED


- --------------------------------------------------
authorised signature                date

Phillipe Gateau
- --------------------------------------------------
print or type name of signatory

Director, Windsor Television Limited
- --------------------------------------------------
title




UNITED ARTISTS COMMUNICATIONS (COTSWOLDS) LIMITED


- --------------------------------------------------
authorised signature                date

Larry Carleton
- --------------------------------------------------
print or type name of signatory

President and Chief Operating Officer, TeleWest
- --------------------------------------------------
title



                                       12
<PAGE>
ENCOM CABLE TV AND TELECOMMUNICATIONS


- --------------------------------------------------
authorised signature                date

John Sheridan
- --------------------------------------------------
print or type name of signatory

Managing Director and Chief Executive Officer, ENCOM
- --------------------------------------------------
title




TELECENTIAL COMMUNICATIONS LIMITED PARTNERSHIP


- --------------------------------------------------
authorised signature                date

Vernon Achber
- --------------------------------------------------
print or type name of signatory

        President and Chief Executive Officer, CUC Cablevision (UK) LTD.
   acting for and on behalf of Telecential Communications Limited Partnership
   --------------------------------------------------------------------------
                                     title





JONES CABLE GROUP LIMITED


- --------------------------------------------------
authorised signature                date

Alan Bates
- --------------------------------------------------
print or type name of signatory

Managing Director, Jones Cable Group Limited
- --------------------------------------------------
title




                                       13
<PAGE>
      "[CONFIDENTIAL PORTION OMITTED]" INDICATES THAT INFORMATION HAS BEEN
                      OMITTED AND FILED SEPARATELY WITH THE
           COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT

                                 AMENDMENT NO. 5
                            TO THE TELEWEST GROUP GPA

This Amendment No. 5, dated the 24th day of May 1994, shall be deemed effective
as of the first day of June 1994, by and between the companies listed under
Exhibit A in the General Purchasing Agreement (GPA), dated 1 March 1993
("Customer"), and Northern Telecom Europe Limited, ("Supplier").

                                    RECITALS

WHEREAS, Customer and Supplier entered into a General Purchasing Agreement dated
the first day of March 1993; and

WHEREAS, Customer and Supplier amended the General Purchasing Agreement by
entering into Amendment No. 1, dated 1 July 1993; and

WHEREAS, Customer and Supplier amended the General Purchasing Agreement by
entering into Amendment No. 2, dated 29 October 1993; and

WHEREAS, Customer and Supplier amended the General Purchasing Agreement by
entering into Amendment No. 3, dated 12 November 1993; and

WHEREAS, Customer and Supplier amended the General Purchasing Agreement by
entering into Amendment No. 4, dated 10 December 1993; and

WHEREAS, Customer and Supplier agree to further amend the GPA pursuant to the
terms and conditions set forth herein.

                                    AGREEMENT

In consideration of the mutual promises and advantages to the parties, the
parties incorporate by reference and agree to the accuracy of the above recitals
and further agree as follows:

TITLE PAGE is hereby amended as follows:

The contract name is hereby amended to include IVS Cable Holdings Limited;


<PAGE>

                                 TELEWEST GROUP




                     ENCOM CABLE TV & TELECOMMUNICATIONS LTD

                 TELECENTIAL COMMUNICATIONS LIMITED PARTNERSHIP

                            JONES CABLE GROUP LIMITED

                           IVS CABLE HOLDINGS LIMITED

                          GENERAL PURCHASING AGREEMENT

                                   NTE-GPA0001





                                       2
<PAGE>
                                   PROPRIETARY
- --------------------------------------------------------------------------------
           THE INFORMATION CONTAINED HEREIN SHOULD NOT BE DISCLOSED TO
                 UNAUTHORISED PERSONS, IT IS INTENDED FOR USE BY
           AUTHORISED REPRESENTATIVES OF THE PARTIES TO THIS DOCUMENT



CLAUSE 1.1.6, PAGE 1 is hereby modified as follows:

The definition of "Consortium" is hereby revised to include IVS Cable Holdings
Limited, now stated as follows:

1.1.6. "Consortium" for the purposes of this Agreement means all Customers
listed under Exhibit A subject to Clause 2.40 entitled 'Several Liability' and
all actions to be taken by Consortium hereunder shall be taken respectively by:
1)TeleWest Communications Group Limited ("TeleWest") as the representative for
those Customers listed as TeleWest wholly owned franchises under Section 1,
Exhibit A and for those Customers listed as Limited Companies under Section 2,
Exhibit A; and 2) Encom Cable TV and Telecommunications Ltd ("Encom") as the
representative for those Customers listed as Encom wholly owned franchises under
Section 3, Exhibit A; and 3) Telecential Communications Limited Partnership
entering into agreement for itself and on behalf of Telecential Communications
(Herts) Limited Partnership and Telecential Communications (Northants) Limited
Partnership ("Telecential") as the representative for those Customers listed as
Telecential wholly owned franchises under Section 4, Exhibit A and 4) Jones
Cable Group Limited ("Jones") as the representative for those Customers listed
as Jones wholly owned franchises under Section 5 Exhibit A; and 5) IVS CABLE
HOLDINGS LIMITED ("IVS") AS THE REPRESENTATIVE FOR THOSE CUSTOMERS LISTED AS IVS
WHOLLY OWNED FRANCHISES UNDER SECTION 6 EXHIBIT A.

CLAUSE 2.48, PAGE 19 is hereby amended as follows:

IVS are hereby added as a party to be notified with all correspondence required
under this Agreement, now stated as follows:

2.48       NOTICES

Where written notices, demands, or other communications are required under this
Agreement to be made in writing, they shall be deemed duly given when made in
writing and delivered in hand, or upon receipt when properly addressed by
Recorded or Registered Post or other delivery service to the following
addresses:

         CUSTOMERS :


TeleWest Communications Group Ltd.      Encom Cable TV & Telecommunications Ltd
Attn : Contract Manager                 Attn : Senior Manager- Network Switching
Materials Management Department         5 Limeharbour
Unit 1, Genesis Business Park           London E14 9TY
Woking, Surrey, GU21 5RW


Telecential Communications Ltd Partnership        Jones Cable Group Limited
Attn : Contract Manager                           Attn : Contract Manager
Link 2 Beacontree Plaza, Gillette Way,            Jones House
Basingstoke Road,                                 9 Greycaine Road
Reading RG2 0BS                                   Watford Hertfordshire WD2 4JP


                                       3
<PAGE>
IVS Cable Holdings Limited.
Attn: Contract Manager
284 Weyhill Road
Andover
Hampshire
SP10 3LF


SUPPLIER :

Commercial Manager; Cable Telephony
Northern Telecom Europe Limited
Public Switching Division
Northern Telecom House
St. Cloud Way
Maidenhead, Berks SL6 8XB

Addresses may be changed by written notices to the parties.

EXHIBIT A, PAGE 30 is hereby amended as follows:

Section 6 is hereby added to incorporate IVS franchises as Customers, now stated
as follows:


EXHIBIT A         CUSTOMERS

This Exhibit A is attached to and made part of that certain General Purchase
dated 1 March 1993 ("Agreement"), by and between Customer as defined in the
Agreement ("Customer") and Northern Telecom Europe Limited ("Supplier").


<TABLE>
<CAPTION>
      FRANCHISE                 FRANCHISE HOLDER                                          REG. NO.
      ---------                 ----------------                                          --------
<S>                             <C>                                                       <C>
1.    TELEWEST WHOLLY OWNED FRANCHISES
- -------------------------------------------------------------------------------------------------------
      Avon                      Avon Cable Joint Venture

      -------------------------------------------------------------------------------------------------
      Croydon, Kingston and     London South Cable Partnership
      Richmond and Merton and
      Sutton

      -------------------------------------------------------------------------------------------------
      North Thames Estuary      United Artists Communications (Thames Estuary)
      South Thames Estuary      Partnership

      -------------------------------------------------------------------------------------------------
      Edinburgh and             United Artists Communications (Scotland) Venture
      Livingston, Uddingston,
      Glenrothes, Dundee and
      Perth.

      -------------------------------------------------------------------------------------------------
      Tyneside                  United Artists Communications (North East) Partnership
- -------------------------------------------------------------------------------------------------------


                                       4
<PAGE>
2.    LIMITED COMPANIES

      Birmingham                Birmingham Cable Limited                                     2170379

      -------------------------------------------------------------------------------------------------
      The registered office          CABLE PHONE HOUSE,
      for the above listed           SMALL HEATH BUSINESS PARK,
      company is:                    TALBOT WAY, SMALL HEATH,
                                     BIRMINGHAM.  B10 OHJ

      -------------------------------------------------------------------------------------------------
      Camden, Enfield,          Cable London plc                                             1794264
      Hackney and Islington,
      Haringey
      -------------------------------------------------------------------------------------------------
      The registered office          100 CHALK FARM ROAD
      for the above listed           LONDON  NW1 8EH
      company is:

      -------------------------------------------------------------------------------------------------
      Hillingdon and Hounslow,  Windsor Television Limited                                   1745542
      Windsor
      -------------------------------------------------------------------------------------------------
      The registered office          CABLE HOUSE
      for the above listed           WATERSIDE DRIVE
      company is:                    LANGLEY, BERKSHIRE.  SL3 6EZ

      -------------------------------------------------------------------------------------------------

      Cotswolds                 TeleWest Communications Group Limited                        2514287

                                United Artists Communications (Cotswolds) Limited            1743081
- -------------------------------------------------------------------------------------------------------

3.    ENCOM WHOLLY OWNED FRANCHISES

      Tower Hamlet/Newham       Encom Cable TV and Telecommunications Ltd                    1870928
      Greater London East
      Havering
      Waltham Forest
      Dartford
      Epping Forest

      -------------------------------------------------------------------------------------------------
      The registered office          4 CARLTON GARDENS
      for the above listed           PALL MALL
      company is:                    LONDON SW1Y 5AA

- -------------------------------------------------------------------------------------------------------
  4   TELECENTIAL WHOLLY OWNED FRANCHISES

      Thames Valley             Telecential Communications Limited Partnership               2387692
      West Herts
      Northants
      Swindon
      Warwickshire
      Northamptonshire

      -------------------------------------------------------------------------------------------------
      The registered office          DRAGOON HOUSE
      for the above listed           37 ARTILLERY LANE
      company is:                    LONDON E1 7LT
- -------------------------------------------------------------------------------------------------------

                                       5
<PAGE>
- -------------------------------------------------------------------------------------------------------
  5   JONES WHOLLY OWNED FRANCHISES

- -------------------------------------------------------------------------------------------------------
      South Herts               Jones Cable Group of South Hertfordshire Limited

      -------------------------------------------------------------------------------------------------
      Leeds                     Jones Cable Group of Leeds Limited

      -------------------------------------------------------------------------------------------------
  6   IVS CABLE HOLDINGS LIMITED WHOLLY OWNED FRANCHISES

- -------------------------------------------------------------------------------------------------------
      Andover                   Andover Cablevision Limited

- -------------------------------------------------------------------------------------------------------
      Salisbury                 Wessex Cable Limited

- -------------------------------------------------------------------------------------------------------
      Stafford                  Stafford Communications Limited

- -------------------------------------------------------------------------------------------------------
      Oxford                    Oxford Cable Limited
- -------------------------------------------------------------------------------------------------------

</TABLE>



                                       6
<PAGE>
CLAUSE C4.1, PAGE 35 is hereby amended as follows:
Customer's Purchase Objective is hereby revised from [Confidential Portion
Omitted] lines to [Confidential Portion Omitted] and the SNSE pricing is
adjusted in line with the SuperNode Host Price Per Line with a separate initial
price for a core plus a minimum line size for a orders for SNSE.

  C4.1         Supplier's fully discounted net price per Switch line shown in
               the table below, includes FOR [CONFIDENTIAL PORTION OMITTED] PER
               SWITCH AND FOR [CONFIDENTIAL PORTION OMITTED] PER SWITCH . The
               relevant price per line for any Order shall be determined by
               applying the prevailing Purchase Objective effective on the date
               of such Order, as defined in Clause C7, to the table below.

PRICE PER LINE BASED UPON PURCHASE OBJECTIVE



                         [CONFIDENTIAL PORTION OMITTED]

                          LINES       LINES      LINES       LINES        LINES

- --------------------------
PURCHASE OBJECTIVE

- --------------------------
HOST PRICE PER LINE:

- --------------------------
SNSE PRICE PER LINE:

- --------------------------
RSC PRICE PER LINE:                      [Confidential Portion Omitted]

- --------------------------
RLCM PRICE PER LINE:

- --------------------------
SRU PRICE PER LINE:


   No retrospective price adjustments will be made to previous Purchases upon
   Consortium achieving the next pricing level. The above stated price per line,
   ACCEPT AS STATED BELOW WITH REGARD TO SNSE, includes the Product(s) as listed
   in Appendix 2, entitled "Price Per Line" attached hereto and by this
   reference incorporated into this Agreement and Software as defined in
   Attachment K of the Proposal, and Services including but not limited to
   [Confidential Portion Omitted] In the case of Switch remotes, (RSC, RLCM and
   SRU), the price includes [Confidential Portion Omitted] These prices include
   all customs and import duties, but exclude VAT. [CONFIDENTIAL PORTION
   OMITTED]



CLAUSE C7.1.1 is hereby amended to show Customer's revised Purchase Objective
following the inclusion of IVS' franchises, as follows:

       C7.1.1        Customer's initial Purchase Objective is detailed below 
                     ("Initial Purchase Objective")

                         [CONFIDENTIAL PORTION OMITTED]


                                       7
<PAGE>
CLAUSE C25.1.3, AMENDMENT 2 PAGE 7 is hereby amended to detail the Marketing
Support provided to IVS now restated as follows:

SUPPLIER AGREES TO PROVIDE A DEDICATED FULLY SKILLED MARKETING RESOURCE
INDIVIDUALLY, TO TELECENTIAL, JONES AND IVS EACH FOR A PERIOD OF 3 (THREE)
MONTHS.









                                       8
<PAGE>
SIGNATURES

The parties intending to be legally bound have caused this Amendment to be
executed by their duly authorised representatives.



CUSTOMERS                                       SUPPLIER
- -------------------------------------           -------------------------------
TELEWEST COMMUNICATIONS GROUP LIMITED           NORTHERN TELECOM EUROPE LIMITED
- -------------------------------------           -------------------------------


- ------------------------------------            --------------------------------
authorised signature      date                  authorised signature       date

Larry Carleton                                  Pete Meldrum
- ------------------------------------            --------------------------------
print or type name of signatory                 print or type name of signatory


President and Chief Operating Officer,          TeleWestGeneral Manager
- ------------------------------------            --------------------------------
title                                                     title





UNITED ARTISTS COMMUNICATIONS (SCOTLAND) VENTURE
     BY EDINBURGH CABLE LIMITED PARTNERSHIP, ITS GENERAL PARTNER
         BY UNITED ARTISTS CABLE TELEVISION EDINBURGH, INC., GENERAL PARTNER

              BY
                  ----------------------------------------------------------
                  authorised signature                        date

                  Larry Carleton
                  ----------------------------------------------------------
                  print or type name of signatory

                  President and Chief Operating Officer, TeleWest
                  ----------------------------------------------------------
                  title


         BY US WEST CABLE TELECOM, INC., GENERAL PARTNER

              BY
                  ----------------------------------------------------------
                  authorised signature                        date

                  Lynn Rexroth
                  ----------------------------------------------------------
                  print or type name of signatory

                  Executive Vice-President, Telecoms Services, TeleWest
                  ----------------------------------------------------------
                  title


                                       9
<PAGE>
UNITED ARTISTS COMMUNICATIONS (NORTH EAST) PARTNERSHIP
     BY TYNESIDE CABLE LIMITED PARTNERSHIP, ITS GENERAL PARTNER
         BY UNITED ARTISTS CABLE TELEVISION TYNESIDE, INC., GENERAL PARTNER

              BY
                  ----------------------------------------------------------
                  authorised signature                        date

                  Larry Carleton
                  ----------------------------------------------------------
                  print or type name of signatory

                  President and Chief Operating Officer, TeleWest
                  ----------------------------------------------------------
                  title


     BY US WEST CABLE TELECOM, INC., GENERAL PARTNER

              BY
                  ----------------------------------------------------------
                  authorised signature                        date

                  Lynn Rexroth
                  ----------------------------------------------------------
                  print or type name of signatory

                  Executive Vice-President, Telecoms Services. TeleWest
                  ----------------------------------------------------------
                  title





AVON CABLE JOINT VENTURE
     BY AVON CABLE LIMITED PARTNERSHIP, ITS GENERAL PARTNER
         BY UNITED ARTISTS CABLE TELEVISION AVON, INC., GENERAL PARTNER

              BY
                  ----------------------------------------------------------
                  authorised signature                        date

                  Larry Carleton
                  ----------------------------------------------------------
                  print or type name of signatory

                  President and Chief Operating Officer, TeleWest
                  ----------------------------------------------------------
                  title

         BY US WEST CABLE TELECOM, INC., GENERAL PARTNER

              BY
                  ----------------------------------------------------------
                  authorised signature                        date

                  Lynn Rexroth
                  ----------------------------------------------------------
                  print or type name of signatory

                  Executive Vice-President, Telecoms Services, TeleWest
                  ----------------------------------------------------------
                  title



                                       10
<PAGE>
UNITED ARTISTS COMMUNICATIONS (THAMES ESTUARY) PARTNERSHIP
     BY ESTUARIES CABLE LIMITED PARTNERSHIP, GENERAL PARTNER
         BY UNITED ARTISTS CABLE TELEVISION ESTUARIES, INC., GENERAL PARTNER

              BY
                  ----------------------------------------------------------
                  authorised signature                        date

                  Larry Carleton
                  ----------------------------------------------------------
                  print or type name of signatory

                  President and Chief Operating Officer, TeleWest
                  ----------------------------------------------------------
                  title


         BY US WEST CABLE TELECOM, INC., GENERAL PARTNER

              BY
                  ----------------------------------------------------------
                  authorised signature                        date

                  Lynn Rexroth
                  ----------------------------------------------------------
                  print or type name of signatory

                  Executive Vice-President, Telecoms Services, TeleWest
                  ----------------------------------------------------------
                  title





LONDON SOUTH CABLE PARTNERSHIP
     BY UNITED CABLE (LONDON SOUTH) LIMITED PARTNERSHIP, GENERAL PARTNER
         BY UNITED ARTISTS CABLE TELEVISION UK. INC., GENERAL PARTNER

              BY
                  ----------------------------------------------------------
                  authorised signature                        date

                  Larry Carleton
                  ----------------------------------------------------------
                  print or type name of signatory

                  President and Chief Operating Officer, TeleWest
                  ----------------------------------------------------------
                  title


         BY US WEST CABLE TELECOM, INC., GENERAL PARTNER

              BY
                  ----------------------------------------------------------
                  authorised signature                        date

                  Lynn Rexroth
                  ----------------------------------------------------------
                  print or type name of signatory

                  Executive Vice-President, Telecoms Services, TeleWest
                  ----------------------------------------------------------
                  title



                                       11
<PAGE>
CABLE LONDON PLC


- --------------------------------------------------
authorised signature                date

Gerald Campbell
- --------------------------------------------------
print or type name of signatory

Managing Director, Cable London plc
- --------------------------------------------------
title




BIRMINGHAM CABLE LIMITED


- --------------------------------------------------
authorised signature                date

Edward Campbell
- --------------------------------------------------
print or type name of signatory


Managing Director, Birmingham Cable Limited
- --------------------------------------------------
title




WINDSOR TELEVISION LIMITED


- --------------------------------------------------
authorised signature                date

Phillipe Gateau
- --------------------------------------------------
print or type name of signatory

Director, Windsor Television Limited
- --------------------------------------------------
title




UNITED ARTISTS COMMUNICATIONS (COTSWOLDS) LIMITED


- --------------------------------------------------
authorised signature                date

Larry Carleton
- --------------------------------------------------
print or type name of signatory

President and Chief Operating Officer, TeleWest
- --------------------------------------------------
title



                                       12
<PAGE>
ENCOM CABLE TV AND TELECOMMUNICATIONS


- --------------------------------------------------
authorised signature                date

John Sheridan
- --------------------------------------------------
print or type name of signatory

Managing Director and Chief Executive Officer, ENCOM
- --------------------------------------------------
title




TELECENTIAL COMMUNICATIONS LIMITED PARTNERSHIP


- --------------------------------------------------
authorised signature                date

Vernon Achber
- --------------------------------------------------
print or type name of signatory

        President and Chief Executive Officer, CUC Cablevision (UK) LTD.
   acting for and on behalf of Telecential Communications Limited Partnership
   --------------------------------------------------------------------------
                                     title





JONES CABLE GROUP LIMITED


- --------------------------------------------------
authorised signature                date

Alan Bates
- --------------------------------------------------
print or type name of signatory

Managing Director, Jones Cable Group Limited
- --------------------------------------------------
title




IVS CABLE HOLDINGS LIMITED


- --------------------------------------------------
authorised signature                date

Peter C Funk
- --------------------------------------------------
print or type name of signatory

Chairman, IVS Cable Holdings Limited
- --------------------------------------------------
title



                                       13

<PAGE>
      "[CONFIDENTIAL PORTION OMITTED]" INDICATES THAT INFORMATION HAS BEEN
                      OMITTED AND FILED SEPARATELY WITH THE
           COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT

                                 AMENDMENT NO. 6
                       TO THE GENERAL PURCHASING AGREEMENT
                                   NTE-GPA0001

This Amendment No. 6, dated this 29th day of June 1995 shall be deemed effective
as of the first day of December 1994, by and between the companies listed under
Exhibit A in the General Purchasing Agreement (GPA), dated 1 March 1993
("Customer"), and Nortel Limited, ("Supplier").

                                    RECITALS

WHEREAS, Customer and Supplier entered into a General Purchasing Agreement dated
the first day of March 1993; and

WHEREAS, Customer and Supplier amended the General Purchasing Agreement by
entering into Amendment No. 1, dated 1 July 1993; and

WHEREAS, Customer and Supplier amended the General Purchasing Agreement by
entering into Amendment No. 2, dated 29 October 1993; and

WHEREAS, Customer and Supplier amended the General Purchasing Agreement by
entering into Amendment No. 3, dated 12 November 1993; and

WHEREAS, Customer and Supplier amended the General Purchasing Agreement by
entering into Amendment No. 4, dated 10 December 1993; and

WHEREAS, Customer and Supplier amended the General Purchasing Agreement by
entering into Amendment No. 5, dated 24 May 1994; and

WHEREAS, Customer and Supplier agree to further amend the GPA pursuant to the
terms and conditions set forth herein.

                                    AGREEMENT

In consideration of the mutual promises and advantages to the parties, the
parties incorporate by reference and agree to the accuracy of the above recitals
and further agree as follows:



<PAGE>
TITLE PAGE is hereby amended to include Comcast Teesside Limited and Cambridge
Cable Limited and to amend reference to Encom Cable TV and Telecommunications
Ltd and Jones Cable Group Limited to Bell Cablemedia plc;



                                 TELEWEST GROUP


                               BELL CABLEMEDIA PLC

                 TELECENTIAL COMMUNICATIONS LIMITED PARTNERSHIP

                           IVS CABLE HOLDINGS LIMITED

                            COMCAST TEESSIDE LIMITED

                             CAMBRIDGE CABLE LIMITED

                          GENERAL PURCHASING AGREEMENT

                                   NTE-GPA0001



                                   PROPRIETARY

           THE INFORMATION CONTAINED HEREIN SHOULD NOT BE DISCLOSED TO
                UNAUTHORISED PERSONS, IT IS INTENDED FOR USE BY
           AUTHORISED REPRESENTATIVES OF THE PARTIES TO THIS DOCUMENT



INTRODUCTION, Supplier's legal name is hereby corrected from "Northern Telecom
Europe Limited" to "Nortel Limited" now stated as follows:



1        INTRODUCTION

This Agreement, dated 1 March 1993, is made by and between the companies listed
under Exhibit A attached hereto and by this reference incorporated into this
Agreement and identified herein ("Customer"), and NORTEL LIMITED, having its
registered office at Stafferton Way, Maidenhead, Berks SL6 1AY ("Supplier").

In consideration of the promises, mutual covenants and agreements contained
herein, the receipt and sufficiency of which are hereby acknowledged, Customer
and Supplier agree as follows:


                                       2
<PAGE>
CLAUSE 1.1.6, The definition of "Consortium" is hereby revised to include
Comcast Teesside Limited and Cambridge Cable Limited and to amend reference to
Encom Cable TV and Telecommunications Ltd and Jones Cable Group Limited to Bell
Cablemedia plc, now stated as follows:

1.1.6. "Consortium" for the purposes of this Agreement means all Customers
listed under Exhibit A subject to Clause 2.40 entitled 'Several Liability' and
all actions to be taken by Consortium hereunder shall be taken respectively by:
1)TeleWest Communications Group Limited ("TeleWest") as the representative for
those Customers listed as TeleWest wholly owned franchises under Section 1,
Exhibit A and for those Customers listed as Limited Companies under Section 2,
Exhibit A; and 2) BELL CABLEMEDIA PLC ("BCM") as the representative for those
Customers listed as BCM wholly owned franchises under Section 3, Exhibit A; and
3) Telecential Communications Limited Partnership entering into agreement for
itself and on behalf of Telecential Communications (Herts) Limited Partnership
and Telecential Communications (Northants) Limited Partnership ("Telecential")
as the representative for those Customers listed as Telecential wholly owned
franchises under Section 4, Exhibit A and 4) Section 5) Exhibit A NOT USED ; and
5) IVS Cable Holdings Limited ("IVS") as the representative for those Customers
listed as IVS wholly owned franchises under Section 6 Exhibit A. and 6) COMCAST
TEESSIDE LIMITED ("COMCAST") AS THE REPRESENTATIVE FOR THOSE CUSTOMERS LISTED AS
COMCAST WHOLLY OWNED FRANCHISES UNDER SECTION 7 EXHIBIT A. AND 7) CAMBRIDGE
CABLE LIMITED ("CAMBRIDGE") AS THE REPRESENTATIVE FOR THOSE CUSTOMERS LISTED AS
CAMBRIDGE WHOLLY OWNED FRANCHISES UNDER SECTION 8 EXHIBIT A


CLAUSE 2.8, is hereby amended to alter reference to Jones Cable Group Limited to
Bell Cablemedia plc now stated as follows:

2.8        FINANCING

Supplier agrees to provide financing to those Customers listed in Exhibit E,
Appendix 1, together with the amounts of their individual facilities for up to
[Confidential Portion Omitted] in aggregate Purchases under this Agreement
pursuant to Lease Purchase Agreements substantially in the form of Exhibit E,
Appendix 2 in the case of all Customers under common control with TeleWest;
substantially in the form of Exhibit E, Appendix 3 in the case of Birmingham
Cable Limited and Cable London plc; and substantially in the form of Exhibit E,
Appendix 4 in the case of Windsor Television Limited. Supplier also agrees to
provide financing: 1) to United Artists (Scotland) Venture and United Artists
(Cotswolds) Limited, to a combined facility of up to [Confidential Portion
Omitted] in aggregate Purchases under this Agreement pursuant to Lease Purchase
Agreements substantially in the form of Exhibit E, Appendix 5; 2) to
Telecential, substantially in the form of Exhibit E, Appendix 6; and 3) BELL
CABLEMEDIA PLC NORTHERN REGION substantially in the form of Exhibit E appendix
7. The relevant financing agreement shall be entered into by Supplier and
Customer that elects to finance any Purchases prior to such Customer placing its
initial Order hereunder. In the event that a Customer elects to finance
Purchases in accordance with such Lease Purchase Agreement, Supplier shall issue
invoices for such Purchases in accordance with Clause 2.7, except that such
invoices shall be for the full amount due, and such invoices shall be deemed to
be paid upon inclusion of the amounts covered thereby in an Equipment Schedule
under a Lease Purchase Agreement. The financing of Purchases pursuant to a Lease
Purchase Agreement shall be without prejudice to the rights of Customer under
this Agreement with respect to such Purchases, including without limitation
Customer's right not to accept non-conforming Purchases.


CLAUSE 2.48, is hereby amended to add Comcast and Cambridge as parties to be
notified with all correspondence required under this Agreement, to alter
reference to Encom and Jones to BCM and to alter reference to Supplier's
registered name to Nortel Limited now stated as follows:

                                       3
<PAGE>
2.48       NOTICES

Where written notices, demands, or other communications are required under this
Agreement to be made in writing, they shall be deemed duly given when made in
writing and delivered in hand, or upon receipt when properly addressed by
Recorded or Registered Post or other delivery service to the following
addresses:

         CUSTOMERS :


TeleWest Communications Group Ltd.             BELL CABLEMEDIA PLC
Attn : Contract Manager                        ATTN : GROUP DIRECTOR ENGINEERING
Materials Management Department                FLOOR 3 COLNE HOUSE
Unit 1, Genesis Business Park                  WATFORD
Woking, Surrey, GU21 5RW                       HERTFORDSHIRE WD1 7EL


Telecential Communications Ltd Partnership        IVS Cable Holdings Limited
Attn : Contract Manager                           Attn : Contract Manager
Link 2 Beacontree Plaza, Gillette Way,            284 Weyhill Road
Basingstoke Road,                                 Andover
Reading RG2 0BS                                   Hampshire SP10 3LF

CAMBRIDGE CABLE LIMITED.                          COMCAST TEESIDE LIMITED
ATTN: DIRECTOR OF TELECOMS NETWORKS               ATTN: COMPANY SECRETARY
CAMBRIDGE SCIENCE PARK                            WELLINGTON COURT
MILTON ROAD                                       DE HAVILLAND AVENUE
CAMBRIDGE                                         PRESTON FARM
CB4 4WA                                           STOCKTON-ON-TEES
                                                  CLEVELAND  TS18 3TA
SUPPLIER :

Commercial Manager; CATV ACCOUNT GROUP
NORTEL  LIMITED
Northern Telecom House
St. Cloud Way
Maidenhead, Berks
SL6 8XB

Addresses may be changed by written notices to the parties.

EXHIBIT A, is hereby amended to incorporate Comcast and Cambridge franchises as
Customers, to amend reference to Encom and Jones to BCM, and to change reference
to Supplier's name to Nortel Limited now stated as follows:



EXHIBIT A         CUSTOMERS

This Exhibit A is attached to and made part of that certain General Purchase
dated 1 March 1993 ("Agreement"), by and between Customer as defined in the
Agreement ("Customer") and NORTEL LIMITED ("Supplier").


                                       4
<PAGE>
<TABLE>
<CAPTION>
      FRANCHISE                 FRANCHISE HOLDER                                          REG. NO.
<S>                             <C>                                                       <C>
1.    TELEWEST WHOLLY OWNED FRANCHISES
- -------------------------------------------------------------------------------------------------------
      Avon                      Avon Cable Joint Venture

      -------------------------------------------------------------------------------------------------
      Croydon, Kingston and     London South Cable Partnership
      Richmond and Merton and
      Sutton

      -------------------------------------------------------------------------------------------------
      North Thames Estuary      United Artists Communications (Thames Estuary)
      South Thames Estuary      Partnership

      -------------------------------------------------------------------------------------------------
      Edinburgh and             United Artists Communications (Scotland) Venture
      Livingston, Uddingston,
      Glenrothes, Dundee and
      Perth.

      -------------------------------------------------------------------------------------------------
      Tyneside                  United Artists Communications (North East) Partnership
- -------------------------------------------------------------------------------------------------------

2.    LIMITED COMPANIES

      Birmingham                Birmingham Cable Limited                                     2170379

      -------------------------------------------------------------------------------------------------
      The registered office          CABLE PHONE HOUSE,
      for the above listed           SMALL HEATH BUSINESS PARK,
      company is:                    TALBOT WAY, SMALL HEATH,
                                     BIRMINGHAM.  B10 OHJ

      -------------------------------------------------------------------------------------------------
      Camden, Enfield,          Cable London plc                                             1794264
      Hackney and Islington,
      Haringey
      -------------------------------------------------------------------------------------------------
      The registered office          100 CHALK FARM ROAD
      for the above listed           LONDON  NW1 8EH
      company is:

      -------------------------------------------------------------------------------------------------
      Hillingdon and Hounslow,  Windsor Television Limited                                   1745542
      Windsor
      -------------------------------------------------------------------------------------------------
      The registered office          CABLE HOUSE
      for the above listed           WATERSIDE DRIVE
      company is:                    LANGLEY, BERKSHIRE.  SL3 6EZ

      -------------------------------------------------------------------------------------------------

      Cotswolds                 TeleWest Communications Group Limited                        2514287

                                United Artists Communications (Cotswolds) Limited            1743081
- -------------------------------------------------------------------------------------------------------

3.    BCM WHOLLY OWNED FRANCHISES

      Tower Hamlet/Newham,      BELL CABLEMEDIA SOUTHERN REGION
      Greater London East,
      Havering,
      Waltham Forest,
      Dartford, Epping Forest,
      ASHFORD, WATFORD,
      AYLESBURY, WORCESTER
      -------------------------------------------------------------------------------------------------

      PETERBOROUGH, NORWICH,    BELL CABLEMEDIA EASTERN REGION
      WHITTLESEY,
      GT YARMOUTH


                                       5
<PAGE>
      -------------------------------------------------------------------------------------------------
      LEEDS, WEARSIDE, YORK &   BELL CABLEMEDIA NORTHERN REGION
      HARROGATE

      -------------------------------------------------------------------------------------------------
      The registered office          IB PORLAND PLACE                                        2735732
      for the above listed           LONDON W1N 3AA
      company is:
- -------------------------------------------------------------------------------------------------------
  4   TELECENTIAL WHOLLY OWNED FRANCHISES

      Thames Valley             Telecential Communications Limited Partnership               2387692
      West Herts
      Northants
      Swindon
      Warwickshire
      Northamptonshire

      -------------------------------------------------------------------------------------------------
      The registered office          DRAGOON HOUSE
      for the above listed           37 ARTILLERY LANE
      company is:                    LONDON E1 7LT

- -------------------------------------------------------------------------------------------------------
  5   NOT USED

- -------------------------------------------------------------------------------------------------------
  6   IVS WHOLLY OWNED FRANCHISES

- -------------------------------------------------------------------------------------------------------
      Andover                   Andover Cablevision Limited

      -------------------------------------------------------------------------------------------------
      Salisbury                 Wessex Cable Limited

      -------------------------------------------------------------------------------------------------
      Stafford                  Stafford Communications Limited
      -------------------------------------------------------------------------------------------------
      Oxford                    Oxford Cable Limited

- -------------------------------------------------------------------------------------------------------
  7   COMCAST WHOLLY OWNED FRANCHISES

      -------------------------------------------------------------------------------------------------
      TEESSIDE                  COMCAST TEESSIDE LIMITED

      -------------------------------------------------------------------------------------------------
      DARLINGTON                COMCAST DARLINGTON LIMITED

- -------------------------------------------------------------------------------------------------------
  8   CAMBRIDGE WHOLLY OWNED FRANCHISES

      -------------------------------------------------------------------------------------------------
      CAMBRIDGE                 CAMBRIDGE CABLE LIMITED

      -------------------------------------------------------------------------------------------------
      HARLOW/BISHOPS-STORTFORD  ANGLIA CABLE COMMUNICATIONS LIMITED

      -------------------------------------------------------------------------------------------------
      IPSWICH/COLCHESTER        EAST COAST CABLE LIMITED

      -------------------------------------------------------------------------------------------------
      BRAINTREE                 SOUTHERN EAST ANGLIA CABLE LIMITED
- -------------------------------------------------------------------------------------------------------

</TABLE>


EXHIBIT B, is hereby amended to change reference to Supplier's name to Nortel
Limited now stated as follows:


                                       6
<PAGE>

EXHIBIT B         FAULT CLASSIFICATIONS


This Exhibit B is attached to and made part of that certain General Purchase
Agreement dated 1 March, 1993 ("Agreement"), by and between Customer as defined
in Exhibit A of the Agreement ("Customer") and NORTEL LIMITED ("Supplier").





                                       7
<PAGE>
EXHIBIT C, is hereby amended to change reference to Supplier's name to Nortel
Limited and to incorporate the Comcast Teeside Limited request for proposal and
the Nortel Limited response to this request in the Recitals, now stated as
follows:


EXHIBIT C         SWITCH PURCHASES

This Exhibit C is attached to and made part of that certain General Purchasing
Agreement dated 1 March 1993 ("Agreement"), by and between Customer as defined
in Exhibit A ("Customer") of the Agreement and NORTEL LIMITED ("Supplier").

                                    RECITALS

WHEREAS, Customer issued Request for Proposal entitled "Switch/RFP/001" dated
November 1992, AND COMCAST TEESIDE LIMITED REISSUED THIS REQUEST FOR PROPOSAL
DATED SEPTEMBER 1994 (the "RFP") to Supplier soliciting a proposal for Switches
(defined herein);

WHEREAS, Supplier responded to Customer's RFP by submitting its proposal which
offered to provide local switches comprised of DMS-100 Products, Software and
Services ("Switch" or "Switches") as well as individual items of Products,
Software and Services dated 4 January 1993 AND TO COMCAST TEESSIDE LIMITED'S
REISSUED RFP DATED 21 OCTOBER 1994. ("Proposal");

                                    AGREEMENT

NOW, THEREFORE, in consideration of the mutual promises and advantages to the
parties, the parties incorporate by reference and agree to the accuracy of the
above recitals and further agree as follows:

CLAUSE C4.1, is hereby amended to revise Customer's Purchase Objective from
[Confidential Portion Omitted] lines to [Confidential Portion Omitted]

  C4.1         Supplier's fully discounted net price per Switch line shown in
               the table below, includes for [Confidential Portion Omitted] per
               Switch and for [Confidential Portion Omitted] per Switch . The
               relevant price per line for any Order shall be determined by
               applying the prevailing Purchase Objective effective on the date
               of such Order, as defined in Clause C7, to the table below.


PRICE PER LINE BASED UPON PURCHASE OBJECTIVE


                         [CONFIDENTIAL PORTION OMITTED]

                          LINES       LINES      LINES       LINES       1LINES

PURCHASE OBJECTIVE

- --------------------------
HOST PRICE PER LINE:

- --------------------------
SNSE PRICE PER LINE:

- --------------------------
RSC PRICE PER LINE:                      [Confidential Portion Omitted]

- --------------------------
RLCM PRICE PER LINE:

- --------------------------
SRU PRICE PER LINE:


                                       8
<PAGE>
   No retrospective price adjustments will be made to previous Purchases upon
   Consortium achieving the next pricing level. The above stated price per line,
   accept as stated below with regard to SNSE, includes the Product(s) as listed
   in Appendix 2, entitled "Price Per Line" attached hereto and by this
   reference incorporated into this Agreement and Software as defined in
   Attachment K of the Proposal, and Services including but not limited to
   [Confidential Portion Omitted] In the case of Switch remotes, (RSC, RLCM and
   SRU), the price includes [Confidential Portion Omitted] These prices include
   all customs and import duties, but exclude VAT.

   [Confidential Portion Omitted]



CLAUSE C7.1.1 is hereby amended to show Customer's revised Purchase Objective
following the inclusion of Comcast and Cambridge franchises and to amend
reference to Encom and Jones to BCM, now stated as follows:

  C7.1.1       Customer's initial Purchase Objective is detailed below ("Initial
               Purchase Objective")

                         [Confidential Portion Omitted]


CLAUSE C12.2 is hereby amended to replace reference to Encom and Jones with BCM,
now stated as follows:

                         [Confidential Portion Omitted]



CLAUSE C24.1 is hereby amended to replace reference to Encom with BCM, now
stated as follows:

                         [Confidential Portion Omitted]


CLAUSE C25.1.2 is hereby amended to replace reference to Encom with BCM, now 
stated as follows:

  C25.1.2      [Confidential Portion Omitted]


CLAUSE C25.1.3 is hereby amended to replace reference to Jones with BCM, now
  stated as follows: C25.1.3 Supplier agrees to provide a dedicated fully
  skilled marketing resource individually, to

               Telecential, BCM (NORTHERN REGION) and IVS each for a period of 3
(three) months.



                                       9
<PAGE>
SIGNATURES

The parties intending to be legally bound have caused this Amendment to be
executed by their duly authorised representatives.



CUSTOMERS                                        SUPPLIER

TELEWEST COMMUNICATIONS GROUP LIMITED            NORTEL LIMITED
- -------------------------------------            --------------


authorised signature        date                 authorised signature      date

Danny Bryan                                      Steve Pusey
- -----------------------------------              -------------------------------
print or type name of signatory                  print or type name of signatory


Managing Director, TeleWest,                     Director CATV Account Group
- -----------------------------                    ---------------------------
title                                            title

For and on behalf of
- --------------------
TeleWest Communications Group Limited
- -------------------------------------
United Artists Communications (Scotland) Venture
- ------------------------------------------------
United Artists Communications (North East) Partnership
- ------------------------------------------------------
Avon Cable Joint Venture
- ------------------------
United Artists Communications (South East) Partnership
- ------------------------------------------------------
London South Cable Partnership
- ------------------------------
United Artists Communications (Cotswolds) Limited
- -------------------------------------------------


CABLE LONDON PLC



authorised signature                date

Gerald Campbell
print or type name of signatory

Managing Director, Cable London plc
title





BIRMINGHAM CABLE LIMITED



authorised signature                date

Ron Lawley
print or type name of signatory

Managing Director, Birmingham Cable Limited
title


                                       10
<PAGE>
WINDSOR TELEVISION LIMITED



authorised signature                date

Neil Johnson
print or type name of signatory

Managing Director,
title




BELL CABLEMEDIA PLC



authorised signature                date

John Sheridan
print or type name of signatory

Chief Operating Officer,
title




TELECENTIAL COMMUNICATIONS PARTNERSHIP



authorised signature                date

Vernon Achber
print or type name of signatory

        President and Chief Executive Officer, CUC Cablevision (UK) LTD.
       acting for and on behalf of Telecential Communications Partnership
       ------------------------------------------------------------------
                                     title



IVS CABLE HOLDINGS LIMITED



authorised signature                date

Peter C Funk
print or type name of signatory

Chairman, IVS Cable Holdings Limited
title


                                       11
<PAGE>
COMCAST TEESSIDE LIMITED



authorised signature                date

Edward Cambell
print or type name of signatory

Managing Director, Comcast Teesside Limited
title




CAMBRIDGE CABLE LIMITED



authorised signature                date

Edward Ying
print or type name of signatory

Managing Director, Cambridge Cable Limited
title





                                       12

<PAGE>
      "[CONFIDENTIAL PORTION OMITTED]" INDICATES THAT INFORMATION HAS BEEN
                          OMITTED AND FILED SEPARATELY
      WITH THE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT

                                 AMENDMENT NO. 7
                       TO THE GENERAL PURCHASING AGREEMENT
                                   NTE-GPA0001

This Amendment No. 7, dated the 30th day of June 1995 shall be deemed effective
as of the first day of May 1995 by and between the companies listed under
Exhibit A in the General Purchasing Agreement (GPA), dated 1 March 1993
("Customer"), and Nortel Limited, ("Supplier").

                                    RECITALS

WHEREAS, Customer and Supplier entered into a General Purchasing Agreement dated
the first day of March 1993; and

WHEREAS, Customer and Supplier amended the General Purchasing Agreement by
entering into Amendment No. 1, dated 1 July 1993; and

WHEREAS, Customer and Supplier amended the General Purchasing Agreement by
entering into Amendment No. 2, dated 29 October 1993; and

WHEREAS, Customer and Supplier amended the General Purchasing Agreement by
entering into Amendment No. 3, dated 12 November 1993; and

WHEREAS, Customer and Supplier amended the General Purchasing Agreement by
entering into Amendment No. 4, dated 10 December 1993; and

WHEREAS, Customer and Supplier amended the General Purchasing Agreement by
entering into Amendment No. 5, dated 24 May 1994; and

WHEREAS, Customer and Supplier amended the General Purchasing Agreement by
entering into Amendment No. 6, dated 29 June 1995 and

WHEREAS, Customer and Supplier agree to further amend the GPA pursuant to the
terms and conditions set forth herein.


<PAGE>
                                    AGREEMENT

In consideration of the mutual promises and advantages to the parties, the
parties incorporate by reference and agree to the accuracy of the above recitals
and further agree as follows:

CLAUSE C4.1, is hereby amended principally to detail the incremental price per
line for Advanced Software now stated as follows:

  C4.1         Supplier's fully discounted net price per Switch line shown in
               the table below, includes for [Confidential Portion Omitted] per
               Switch and [Confidential Portion Omitted] per Switch. The
               relevant price per line for any Order, EXCLUDING THE INCREMENTAL
               PRICE FOR ADVANCED SOFTWARE WHICH IS DETAILED IN CLAUSE C4.1.4
               Shall be determined by applying the prevailing Purchase Objective
               effective on the date of such Order, as defined in Clause C7, to
               the table below. PRICE PER LINE BASED UPON PURCHASE OBJECTIVE



          [CONFIDENTIAL PORTION OMITTED]


                         LINES       LINES       LINES       LINES       LINES


PURCHASE OBJECTIVE

- -------------------------
HOST PRICE PER LINE:

- -------------------------
SNSE PRICE PER LINE:

- -------------------------
RSC PRICE PER LINE:                     [Confidential Portion Omitted]

- -------------------------
RLCM PRICE PER LINE:

- -------------------------
SRU PRICE PER LINE:


       C4.1.1        No retrospective price adjustments will be made to previous
                     Purchases upon Consortium achieving the next pricing level.

       C4.1.2        The above stated price per line, EXCEPT as stated below
                     with regard to SNSE, includes the Product(s) as listed in
                     Appendix 2, entitled "Price Per Line" attached hereto and
                     by this reference incorporated into this Agreement and BASE
                     Software as defined in Attachment K ISSUE 3 of the
                     Proposal, and Services including but not limited to
                     [Confidential Portion Omitted] In the case of Switch
                     remotes, (RSC, RLCM and SRU) the price PER LINE
                     [Confidential Portion Omitted] These prices include all
                     customs and import duties, but exclude VAT.

       C4.1.3        [Confidential Portion Omitted]

       C4.1.4        CUSTOMER SHALL PAY AND INCLUDE WITHIN EVERY ORDER FOR
                     ADDITIONAL SWITCH LINE CAPACITY WHETHER ON A HOST, SNSE,
                     RSC, RLCM, SRU OR SRU-S THE INCREMENTAL PRICE PER LINE AS
                     DETAILED IN CLAUSES C4.1.4.1 AND C4.1.4.2 FOR ADVANCED
                     SOFTWARE AS DESCRIBED AND DEFINED IN ATTACHMENT K ISSUE 3.
                     SUCH INCREMENTAL PRICE PER LINE SHALL APPLY RETROSPECTIVELY
                     TO LINES ORDERED PRIOR TO THIS AMENDMENT.


                                       2
<PAGE>
                  C4.1.4.1       FOR THE FIRST [Confidential Portion Omitted] OF
                                 SUCH LINES INSTALLED BY SUPPLIER, AND ORDERED
                                 BY ALL CUSTOMERS COLLECTIVELY, UNDER THIS
                                 AGREEMENT, THE INCREMENTAL PRICE PER LINE FOR
                                 ADVANCED SOFTWARE TO BE INCLUDED ON CUSTOMER'S
                                 ORDER SHALL BE [Confidential
                                 Portion Omitted].

                  C4.1.4.2       FOR ALL LINES ORDERED, UNDER THIS AGREEMENT, BY
                                 CUSTOMERS COLLECTIVELY BEYOND THE FIRST
                                 [Confidential Portion Omitted] LINES AS
                                 DESCRIBED IN CLAUSE C4.1.4.1 AND UP TO
                                 [Confidential Portion Omitted] LINES, THE
                                 INCREMENTAL PRICE PER LINE FOR ADVANCED
                                 SOFTWARE TO BE INCLUDED ON CUSTOMER'S ORDER
                                 SHALL BE [Confidential Portion Omitted]

                  C4.1.4.3       SUPPLIER AND CUSTOMER SHALL NEGOTIATE IN GOOD
                                 FAITH A PRICE FOR ALL LINES ORDERED, UNDER THIS
                                 AGREEMENT, BY CUSTOMERS COLLECTIVELY BEYOND THE
                                 FIRST [Confidential Portion Omitted] LINES AS
                                 DESCRIBED IN CLAUSES C4.1.4.1 AND C4.1.4.2.

                  C4.1.4.4       THE ADVANCED SOFTWARE RTU FEE SHALL
                                 APPLY TO ALL SWITCH AND REMOTE
                                 LINES. NO FURTHER DISCOUNTS OR
                                 DEDUCTIONS WHATSOEVER WILL APPLY
                                 INCLUDING FOR INTERNAL USE (CLAUSE
                                 C6.4) AND SOFTWARE UTILISATION
                                 DISCOUNT (CLAUSE C31.5).

                  C4.1.4.5       THE ADVANCED SOFTWARE RTU FEE HAS BEEN
                                 CALCULATED ASSUMING AN ULTIMATE SWITCH SIZE OF
                                 [Confidential Portion Omitted] LINES. CUSTOMERS
                                 SHALL ENDEAVOUR TO EXTEND THEIR SWITCHES TO
                                 ACHIEVE THIS
                                 ULTIMATE SWITCH SIZE.

CLAUSE C6.6, is hereby amended to incorporate the modified Software pricing and
packaging as detailed in Attachment K issue 3 and clauses C6.6.1, C6.6.2 and
C6,6.3 are hereby deleted. Clause 6.6 is now restated as follows:

  C6.6         ADDITIONAL FEATURE SOFTWARE
               ADDITIONAL FEATURE SOFTWARE INCLUDED IN NEITHER THE BASE PRICE
               PER LINE NOR THE INCREMENTAL PRICE PER LINE FOR ADVANCED SOFTWARE
               AS STATED UNDER CLAUSE C4.1 CAN BE PURCHASED AS DEFINED AND
               PRICED IN ATTACHMENT K, ISSUE 3 ATTACHED HERETO AND INCORPORATED
               HEREIN BY REFERENCE.

CLAUSE C9.1, is hereby amended to incorporate a definition for Obsolescence now
restated as follows:
C9                TECHNOLOGY OBSOLESCENCE

  C9.1         Supplier and Consortium will work together to minimise the impact
               of Product "OBSOLESCENCE" (AS DEFINED BELOW IN CLAUSE C9.2) and
               the loss of the Customer's competitive position through the
               provision of regular technology working parties which will
               directly assist in the Product roll out and custom Research and
               Development commitments for the Customer. These working parties
               will consist of the Consortium and technical experts from both
               the Supplier and the Supplier's agents (Bell Northern Research).
               The Supplier proposes that the first such working party be
               established during the 1st calendar quarter 1993 and thereafter
               on a calendar quarterly basis. Where such system developments
               will be of benefit to the Customer, the Supplier will offer to
               the Customer an appropriate credit to upgrade the installed
               systems. Such appropriate credits will be determined on a case by
               case basis and will take into consideration a mutually agreed
               percentage of the audited depreciated book value of the equipment
               being impacted.

       C9.1.1        Consortium and Supplier agree to develop a method to
                     determine the appropriate credit.


                                       3
<PAGE>
  C9.2         "OBSOLETE" OR "OBSOLESCENCE" MEANS WHEN SUPPLIER IMPOSES THE NEED
               FOR A PRODUCT OR PORTION OF A PRODUCT TO BE UPGRADED OR REPLACED
               THROUGH THE RELEASE OF A SOFTWARE UPGRADE WHICH IS NO LONGER
               COMPATIBLE WITH THE EXISTING PRODUCT.

       C9.2.1        THIS OBSOLESCENCE TAKES EFFECT ON A SWITCH BY SWITCH BASIS
                     FROM THE DATE THAT THE NEW SOFTWARE UPGRADE IS APPLIED TO
                     EACH SWITCH.

       C9.2.2        AN EXISTING PRODUCT DOES NOT BECOME OBSOLETE DUE TO THE
                     RELEASE OF A NEW PRODUCT IF THE EXISTING PRODUCT REMAINS
                     COMPATIBLE WITH THE SOFTWARE AND THE SUPPLIER DOES NOT
                     REQUIRE THE EXISTING PRODUCT TO BE REPLACED OR UPGRADED.

       C9.2.3        AN EXISTING PRODUCT DOES NOT BECOME OBSOLETE DUE TO NEW
                     FEATURE DEVELOPMENT BEING LIMITED ON THAT PRODUCT OR
                     PREFERRED ON AN ALTERNATIVE PRODUCT. NOTWITHSTANDING THIS,
                     SUPPLIER SHALL PROMPTLY ADVISE CUSTOMER OF THE OCCURRENCE
                     OF SUCH CIRCUMSTANCES AND ARRANGE TO MEET AND MUTUALLY
                     AGREE UPON THE METHOD OF PROCEEDING.

CLAUSE C10, is hereby amended to make reference to Suppliers BRISC 60 Product
now restated as follows:

C10               BELL NORTHERN RESEARCH RATIONALISED INSTRUCTION SET COMPUTING
                  PROCESSOR

  C10.1        Supplier shall upgrade the Switches to Bell Northern Research
               Rationalised Instruction Set Computing (BRISC) processors at no
               additional charge where it is found that the recommended maximum
               Busy Hour Call Attempts (BHCA) capacity for the Cable Television
               (CATV) environment as detailed in the Supplier's response to the
               RFP section 3.3.2.8 are not achieved, provided that the failure
               to achieve such recommended maximum BHCA capacity is not
               attributable to the introduction of additional Software features
               or to a traffic volume and/or call mix varying from that detailed
               in the BHCA capacity predictions.

  C10.2        Customer may Order the BRISC 50 processor with the Order for an
               initial Switch at the incremental price of (pound)25,000.

  C10.3        CUSTOMER MAY ORDER THE BRISC 60 PROCESSOR WITH THE ORDER FOR AN
               INITIAL SWITCH AT THE INCREMENTAL PRICE OF (POUND)50,000. PAYMENT
               FOR (POUND)25,000 OF THIS (POUND)50,000 SHALL BE DEFERRED UNTIL
               SUCH TIME AS CUSTOMER REQUIRES THE ADDITIONAL PROCESSING
               CAPABILITY PROVIDED BY THE BRISC 60 OVER AND ABOVE THAT PROVIDED
               BY THE BRISC 50.

CLAUSE C12, is hereby amended to [Confidential Portion Omitted]

           C12.2.1[Confidential Portion Omitted]

           C12.2.2[Confidential Portion Omitted]

  C12.3        Supplier agrees to make GPP available on Orders requiring
               Delivery after 1 January 1995, in accordance with a managed
               implementation plan to be generated by 31 December 1993, and
               formally agreed to by 30 June 1994.

  C12.4        Should Supplier fail to have GPP available in accordance with
               such agreed implementation plan specified in Clause C12.3, then
               Supplier shall retrofit, to GPP, all non-GPP lines Delivered
               after the agreed dates in such implementation plan at no charge
               to Customer and shall not consider such retrofit an extension for
               pricing purposes stated in Clause C4.

   C12.5       The provisions of Clause C12.4 constitute Supplier's sole
               liability and Customer's sole remedy for Supplier's failure to
               meet the agreed implementation plan specified in Clause C12.3.


                                       4
<PAGE>
  C12.6        AT THE INTRODUCTION OF GPP IN SOFTWARE RELEASE "UK002", SUPPLIER
               SHALL ENSURE THAT SOFTWARE FEATURES AVAILABLE ON GPP WILL ALSO BE
               AVAILABLE ON PLD. SUPPLIER SHALL, SUBJECT TO THE CAVEATS DETAILED
               HEREIN, DEVELOP AND RELEASE FEATURES IN PARALLEL ON BOTH GPP AND
               PLD UNTIL 31 DECEMBER 1999. SUPPLIER'S COMMITMENT DOES NOT EXTEND
               TO A FUTURE LINE PERIPHERAL PRODUCT BEYOND THE CURRENT GPP
               PRODUCT NOR TO THE DEVELOPMENT AND DEPLOYMENT OF SOFTWARE
               FEATURES WHERE THE INHERENT CAPABILITY OF THE SYSTEM ARCHITECTURE
               RESTRICTS OR LIMITS SUCH DEVELOPMENT TO A SINGLE HARDWARE
               PLATFORM. THIS INCLUDES BUT IS NOT LIMITED TO ISDN, V5.2 AND
               NAILED UP N X 64 KBS.

           C12.6.1         SHOULD SUPPLIER BECOME AWARE OF CIRCUMSTANCES WHICH
                           PREVENT IT FROM ADHERING TO THE COMMITMENT DETAILED
                           IN THIS CLAUSE C12.6 OR IDENTIFIES ADDITIONAL
                           FEATURES WHERE THE INHERENT CAPABILITY OF THE SYSTEM
                           ARCHITECTURE RESTRICTS OR LIMITS DEVELOPMENT TO A
                           SINGLE HARDWARE PLATFORM, THEN SUPPLIER SHALL
                           PROMPTLY ADVISE CUSTOMER OF THE CIRCUMSTANCES AND
                           ARRANGE TO MEET AND MUTUALLY AGREE UPON THE METHOD OF
                           PROCEEDING.



CLAUSE C13.2, is hereby amended to refer to the modified Software pricing and
packaging (Attachment K issue 3) now restated as follows:

  C13.2        Supplier shall provide DPNSS at [Confidential Portion Omitted]
               per 2Mbps port. This price includes the 2Mbps interface,
               signalling Product, DPNSS Software as defined in ATTACHMENT K,
               ISSUE 3, engineering, installation and commissioning, and project
               management. The initial Order by Customer for such 2Mbps ports
               shall be no less than a minimum quantity of sixteen (16) ports
               per Switch.


                                       5
<PAGE>
CLAUSE C21, is hereby amended to replace reference [Confidential Portion
Omitted]


C21               GENERIC SOFTWARE

  C21.1        The Supplier shall provide [Confidential Portion Omitted] It is
               advisable to have all Switches in the network maintained at the
               same PCL Software level.

  C21.2        The Supplier is keen to encourage the wide spread use of its
               Software and hence will allow [Confidential Portion Omitted]

       C21.2.1       The Supplier is notified in advance of the use of the
                     additional modules so that the product configuration can be
                     audited to identify (1) any additional Product
                     requirements; (2) the suitability of the Software release
                     and its proposed application in the UK; (3) and to ensure
                     that appropriate support personnel are available (where
                     necessary);

       C21.2.2       Customer agrees to allow Supplier to prepare a capacity
                     analysis to ensure that no adverse impacts will occur due
                     to the use of this additional Software;

       C21.2.3       Any additional Product(s) identified by Supplier as being 
                     required is purchased and installed in the Switch before 
                     the Software is used. The price for this
                     Product [Confidential Portion Omitted]

  C21.3        Customer understands that Supplier may load Software Features on
               the PCL generic Software LOAD for which Customer will not have
               paid a Right To Use ("RTU"). Customer agrees that upon commercial
               deployment of such Feature(s) including use of such Feature by
               Customer's customers, the Software Right to Use shall be paid to
               Supplier as quoted under this Agreement.

  C21.3.1      CUSTOMER ALSO UNDERSTANDS THAT THE FUNCTIONALITY OF ALL SOFTWARE
               INCLUDED IN THE PCL GENERIC SOFTWARE LOAD HAS OR IS BEING
               VERIFIED IN VARIOUS MARKET ENVIRONMENTS. IN ORDER TO ENSURE
               SUCCESSFUL DEPLOYMENT OF THE SOFTWARE IN THE UK CATV ENVIRONMENT
               (SWITCH AND NETWORK) ADDITIONAL VERIFICATION TESTING KNOWN AS
               FIRST MARKET APPLICATION ("FMA") TESTING MAY BE NECESSARY. SUCH
               TESTING SHALL BE PERFORMED BY SUPPLIER WITH THE CO-OPERATION OF
               CUSTOMERS. THE PROGRAMME FOR FMA TESTING SHALL TAKE INTO
               CONSIDERATION THE COMBINED PRIORITIES OF ALL CUSTOMERS AND
               SUPPLIER SHALL ENSURE, THAT THEY ACHIEVE SUCH FMA TESTING TARGETS
               AS MAY BE AGREED IN ORDER TO MEET CUSTOMER'S PLANS FOR COMMERCIAL
               DEPLOYMENT.

  C21.4        Supplier shall prepare and package Software programs and
               releases, including maintenance releases, which will allow
               Customer to skip programs or releases as its discretion without
               being required to purchase or load skipped programs, Features, or
               releases provided that Customer loads at least every third PCL
               generic Software load.

  C21.5        Customer, at its discretion, may skip PCL generic Software LOADS.
               There will be no charge whatsoever for such programs skipped by
               Customer, and Customer shall not be charged any additional
               amounts to procure subsequent Software programs, other than the
               normal prices, less applicable discounts, for those subsequent
               Software LOADS.

  C21.6        Unless otherwise specified in an Order, Supplier shall provision
               each Switch with the most current commercially available Software
               PCL on the Delivery Date.

  C21.7        Supplier agrees to provide Customer with the following
               information, in writing, each time a new Software generic is
               released and Ordered by Customer :

       C21.7.1       Notification of any known fault on a site specific Customer
                     Service Report (CSR) with severity levels as defined under
                     Exhibit B of this Agreement;


                                       6
<PAGE>
       C21.7.2       The criticality of each fault;

       C21.7.3       The impact of each fault on the operation of the Software 
                     and associated Products; and

       C21.7.4       Supplier's plans, schedules and performance results for
                     corrective action and regression testing with respect to
                     the faults identified in this Clause C21.7, as well as for
                     continuing Software quality and reliability improvement.
       C21.7.5       Supplier agrees to provide the information described in
                     this Clause C21.7 thirty (30) days prior to Delivery Date
                     provided such release has been generally available for
                     thirty (30) days.

CLAUSE C25.2, is hereby added to detail the additional marketing support
provided by Supplier in recognition of the purchase of Advanced Software now
stated as follows:

  C25.2        SUPPLIER AGREES TO PROVIDE A MARKETING CONSULTANT FOR "13 MAN
               WEEKS "TO ASSIST ALL CUSTOMERS IN SUCCESSFULLY LAUNCHING THE
               ADVANCED SOFTWARE. THIS SUPPORT WILL BE ALLOCATED TO CUSTOMERS IN
               RATIO TO THEIR PROPORTION OF THE FIRST ONE MILLION SWITCH LINES
               AS DETAILED IN CLAUSE C4.1.4.1, SUCH THAT TELEWEST (INCLUDING IVS
               AND COMCAST) WILL RECEIVE 8 MAN WEEKS OF SUPPORT, BCM, 3 MAN
               WEEKS, TELECENTIAL 1 MAN WEEK AND CCL 1 MAN WEEK OF SUPPORT.

CLAUSE C31, is hereby added to detail the Software utilisation discount
available to Supplier, now stated as follows:

C31        ORDER AND CUSTOMER INFORMATION PROCESS FOR A NEW SWITCH

  C31.1        Customer may procure a new Switch by issuing an Order. Such Order
               shall state the number of lines, Acceptance Date and any other
               pertinent information. Supplier's acceptance of such Order shall
               be in compliance with Clause 2.4 of this Agreement.

  C31.2        Upon receipt of such Order or as previously agreed between the
               parties, Supplier and Customer shall establish a date for a
               Customer Information (C/I) meeting, which will further define the
               site specific requirements for the Switch.

  C31.3        Subject to Clause 2.4.4, Customer shall be obligated to procure
               Product(s), Software and Services, and Supplier shall be
               obligated to provide Product(s), Software and Services, under
               this Exhibit C only when an Order has been accepted by Supplier.

  C31.4        Upon completion of the C/I, Supplier shall respond to Customer
               with a QUOTATION which provides a detailed breakdown of THE
               PRICES AND DISCOUNTS FOR Products, Software and Services required
               to meet Customer's requirements and Specifications as defined in
               the C/I. At such time the Order will be amended and agreed
               between the parties in writing to reflect the changes resulting
               from the C/I.

                                       7
<PAGE>
  C31.5        THE C/I WILL IDENTIFY A UTILISATION FACTOR WHICH ARISES AS A
               RESULT OF THE LIMITATIONS OF THE NETWORK ARCHITECTURE AND
               REPRESENTS THE PORTION OF PLD OR GPP LINES THAT ARE ANTICIPATED
               TO BE UTILISED BY CUSTOMER. THIS UTILISATION FACTOR WILL BE USED
               TO DETERMINE A UTILISATION DISCOUNT RATE WHICH IS NOT TO EXCEED
               15% AND IS CALCULATED AS FOLLOWS:

- --------------------------------------------------------------------------------
             UTILISATION DISCOUNT RATE = 100% - UTILISATION FACTOR.
- --------------------------------------------------------------------------------

          A SOFTWARE UTILISATION DISCOUNT WILL BE CALCULATED BY APPLYING THE
          UTILISATION DISCOUNT RATE TO ALL GPP OR PLD LINES DETAILED WITHIN THE
          C/I FOR THAT PARTICULAR ORDER AT THE RATE OF [Confidential Portion
          Omitted] PER LINE. THE [Confidential Portion Omitted] REPRESENTS THE
          BASE SOFTWARE PORTION OF THE PRICE PER SWITCH LINE DETAILED IN CLAUSE
          C4.1. THE SOFTWARE UTILISATION DISCOUNT AS CALCULATED WILL BE DETAILED
          WITHIN SUPPLIER'S QUOTATION DESCRIBED IN CLAUSE C31.4. FOR THE
          AVOIDANCE OF DOUBT SUBSCRIBER LINE DRAWER (SLD) LINES ARE EXCLUDED
          FROM THE SOFTWARE UTILISATION DISCOUNT CALCULATION.

- --------------------------------------------------------------------------------
               SOFTWARE UTILISATION DISCOUNT = GPP OR PLD LINES * UTILISATION 
               DISCOUNT RATE
               [Confidential Portion Omitted]

- --------------------------------------------------------------------------------

                     EXAMPLE:-
                     THE CI FOR A 50,700 LINE SWITCH (50,400 GPP LINES AND 300
                     SLD LINES) IDENTIFIES A UTILISATION FACTOR OF 85%
                     UTILISATION DISCOUNT RATE OF 15% WILL APPLY (100% - 85%)
                     SOFTWARE UTILISATION DISCOUNT WILL BE [Confidential Portion
                     Omitted] CALCULATED AS (50,700-300) * 15% [Confidential
                     Portion Omitted]

  C31.6        SUPPLIER SHALL BE ENTITLED TO CLAW BACK THE SOFTWARE UTILISATION
               DISCOUNT IF SUBSEQUENT TECHNOLOGY ADVANCEMENTS OR MATURITY OF THE
               NETWORK SIGNIFICANTLY IMPROVES THE UTILISATION FACTOR.



                                       8
<PAGE>
SIGNATURES

The parties intending to be legally bound have caused this Amendment to be
executed by their duly authorised representatives.



CUSTOMERS                                       SUPPLIER

TELEWEST COMMUNICATIONS GROUP LIMITED           NORTEL LIMITED
- -------------------------------------           --------------


authorised signature      date                  authorised signature       date

Danny Bryan                                     Steve Pusey
print or type name of signatory                 print or type name of signatory


Managing Director, TeleWest,                    Director CATV Account Group
- -----------------------------                   ---------------------------
title                                           title


For and on behalf of
- --------------------
TeleWest Communications Group Limited
- -------------------------------------
United Artists Communications (Scotland) Venture
- ------------------------------------------------
United Artists Communications (North East) Partnership
- ------------------------------------------------------
Avon Cable Joint Venture
- ------------------------
United Artists Communications (South East) Partnership
- ------------------------------------------------------
London South Cable Partnership
- ------------------------------
United Artists Communications (Cotswolds) Limited
- -------------------------------------------------


CABLE LONDON PLC



authorised signature                date

Gerald Campbell
print or type name of signatory

Managing Director, Cable London plc
title





BIRMINGHAM CABLE LIMITED



authorised signature                date

Ron Lawley
print or type name of signatory

Managing Director, Birmingham Cable Limited
title


                                       9
<PAGE>
WINDSOR TELEVISION LIMITED



authorised signature                date

Neil Johnson
print or type name of signatory

Managing Director,
title




BELL CABLEMEDIA PLC



authorised signature                date

John Sheridan
print or type name of signatory

Chief Operating Officer,
title




TELECENTIAL COMMUNICATIONS PARTNERSHIP



authorised signature                date

Vernon Achber
print or type name of signatory

        President and Chief Executive Officer, CUC Cablevision (UK) LTD.
       acting for and on behalf of Telecential Communications Partnership
       ------------------------------------------------------------------
                                     title



                                       10
<PAGE>
IVS CABLE HOLDINGS LIMITED



authorised signature                date

Peter C Funk
print or type name of signatory

Chairman, IVS Cable Holdings Limited
title



COMCAST TEESSIDE LIMITED



authorised signature                date

Edward Cambell
print or type name of signatory

Managing Director, Comcast Teesside Limited
title




CAMBRIDGE CABLE LIMITED



authorised signature                date

Edward Ying
print or type name of signatory

Managing Director, Cambridge Cable Limited
title



                                       11
<PAGE>
                                     GENERAL
                              PURCHASING AGREEMENT

                                   NTE-GPA0001

                                   AMENDMENT 7

                                   APPENDIX 1








                                  ATTACHMENT K

               CATV SOFTWARE STRUCTURE (BCS34, BCS34+ UK002 PART)



                                       12
<PAGE>
TABLE OF CONTENTS


1)                INTRODUCTION..........................................3

2)                CATV SOFTWARE STRUCTURE DIAGRAM.......................4

3)                SUMMARY OF PRICES BY MODULE...........................6

4)                MODULE DESCRIPTIONS...................................7

5)                CATV SOFTWARE PRICING................................12







                                       13
<PAGE>
1)                INTRODUCTION

This document details the DMS-100 Software for the UK CATV market and the
applicable pricing structure. It replaces the previous version appended to the
GPA in Amendment No 1 (Attachment K issue 2) and supersedes all subsequent
offers and proposals on Software pricing. Although containing a brief overview
of the various modules this is not a statement of availability for any
particular capability. Such information is contained within the latest version
of the document "CATV Software Application Feature Guide" reference 9503SE001D.

This document details Software pricing only and with the exception of Class
Modem Resource cards excludes any hardware which may be required. The extent of
any hardware requirement will need to be confirmed through an engineering
exercise on a switch by switch basis and will be dependant upon the application
and the equipment previously provisioned within the Switch CI.

The document is based upon the proposal "CATV Software pricing 2nd edition" but
also incorporates the subsequent per line pricing offer for Advanced Software.

The DMS-100 Software at BCS34 or BCS34+ levels comprises of Modules referenced A
- - I (Modules J and K are added in UK002). Modules comprise of individual
Packages and Packages generally comprise of a number of individual Features. The
Modules detailed in this document have been specifically structured with the
appropriate Packages and Features to address various applications and
opportunities within the CATV market. The Packages contained within each Module
are detailed within section 5.

From UK002, a new way of packaging software has been introduced which eliminates
the need for 'NTX' pre-fixed packages and replaces them with a much smaller
number of software options defined as 'Functional Ordering Groups'. These are
identified by an application reference and number and each option is equivalent
to many 'NTX' packages. For this reason, software which is new to UK002 is
defined within this document in these terms, rather than by the old 'NTX'
method. UK002 will represent a transition phase where both terms will be used
for existing functionality, and where new functionality will only be defined by
the new method. Functional Ordering Group references are currently being
allocated to the existing Software and future Software releases will only be
defined in the new way. This software pricing proposal is essentially a stepping
stone to the future methodology and will be mapped into the new structure in due
course.

For more details on the precise capability of each Module, please refer to the
following documentation, using the relevant NTX Package code.

I.       DMS-100 ADVANCED SERVICES FEATURE GUIDE (BCS 33 PLUS BCS34 UPDATE)

This is a reference document which describes the voice features included in the
various Software packages available on the DMS in the UK at Software release
BCS33 as amended by the BCS34 update.

II.      DMS-100 MDC VOICE FEATURES - BCS 34

This details the full DMS 100 capability, but not all features are available in
the UK market. It does however contain useful information on the UK features not
yet incorporated in the DMS Advanced Services Feature Guide.


                                       14
<PAGE>
2)                CATV SOFTWARE STRUCTURE DIAGRAM

A comprehensive Software load is provided to the Cable TV Operators much of
which may not be initially required. It is delivered from the offset to avoid
the inconvenience of an upgrade when deployment of further Software is required
and to allow a controlled trial or demonstration of this Software (reference GPA
clause C21).

The Software can be divided into three categories as the diagram below 
illustrates:-

i)    Software included within the basic price per line "BASE SOFTWARE"
ii)   Software included within the incremental price per line for package of
      Advanced Software "ADVANCED SOFTWARE"
iii)  The remaining feature Software not offered on a per line basis "ADDITIONAL
      FEATURE SOFTWARE"

The Packages contained within each Module as illustrated in this diagram are
listed in section 5. There may be dependencies between certain Modules and no
attempt has been made to reflect these in the diagram. [CONFIDENTIAL PORTION
OMITTED] Any such dependencies will be advised prior to deployment.


                                       15
<PAGE>
                                    [CONFIDENTIAL PORTION OMITTED]
[GRAPHIC OMITTED]







                                       16
<PAGE>
)                SUMMARY OF PRICES BY MODULE

The table below summaries the prices on a module by module basis. Please refer
to the detailed narrative for each module in the following section for further
information

<TABLE>
<CAPTION>
- ------------------------------------------------------------------------------------------------------

   MODULE                      DESCRIPTION                                    PRICE
- ------------------------------------------------------------------------------------------------------
<S>                           <C>                                             <C>
      A       Base Software (inc Core Centrex)

- -------------------------------------------------------------

      B       Advanced Residential Services
              Any 2 per switch
              Remainder

- -------------------------------------------------------------

     C1       MF Centrex/VPN

- -------------------------------------------------------------

     C2       Advanced Centrex                                            [CONFIDENTIAL

- -------------------------------------------------------------

      D       ACD

- -------------------------------------------------------------

      E       Compucall                                                      PORTION

- -------------------------------------------------------------

      F       Voice Mail Integration

- -------------------------------------------------------------

     G1       Digital PBX Access - ISDN PRI                                  OMITTED]

- -------------------------------------------------------------

     G2       Digital PBX Access - DPNSS

- -------------------------------------------------------------

     H1       ANSI ISUP

- -------------------------------------------------------------

     H2       Network Centrex VPN

- -------------------------------------------------------------

     H3       Networked ACD

- -------------------------------------------------------------

     H4       Networked Voice Mail

- -------------------------------------------------------------

     H5       DPNSS Transparency over C7

- -------------------------------------------------------------

      I       Enhanced System Features

- -------------------------------------------------------------

      J       ISDN BRA

- -------------------------------------------------------------

      K       CLASS
- ------------------------------------------------------------------------------------------------------

</TABLE>

[CONFIDENTIAL PORTION OMITTED]


                                       17
<PAGE>
4)                MODULE DESCRIPTIONS

MODULE A          BASE SOFTWARE

I.       FOUNDATION (INCLUDING CORE CENTREX)

This module contains all the key system and operating Software plus the
capability to offer many features for residential use as well as a basic
featured Centrex service.

[CONFIDENTIAL PORTION OMITTED]

MODULE B          ADVANCED RESIDENTIAL SERVICES

This module provides additional features for residential services such as
[CONFIDENTIAL PORTION OMITTED]

[CONFIDENTIAL PORTION OMITTED]

The price for any additional features beyond the 2 included within Advanced
Software is as follows:-

One additional Software feature - [CONFIDENTIAL PORTION OMITTED] per switch

Two or more features (ie remainder of Module) [CONFIDENTIAL PORTION OMITTED] per
switch

MODULE C          CENTREX VPN

The Software RTU charges for this module are aligned with the potential
applications available to the CATV companies.

These applications are:

(i)      [CONFIDENTIAL PORTION OMITTED]

(ii)     [CONFIDENTIAL PORTION OMITTED]


C1                MF CENTREX/VPN

This enhances the basic licensed Centrex capabilities [CONFIDENTIAL PORTION
OMITTED]


                                       18
<PAGE>
C2                ADVANCED CENTREX

This provides DMS-100 Centrex capabilities [CONFIDENTIAL PORTION OMITTED]

<TABLE>
<CAPTION>
- ------------------------------------------------------------------------------------------------------

DMS Peripheral                     Unit                               Software RTU fee
- ------------------------------------------------------------------------------------------------------
<S>                   <C>                                     <C>
SRU                          Per SRU deployed                 [CONFIDENTIAL PORTION OMITTED] x
                      [CONFIDENTIAL PORTION OMITTED]                     No of SRUs

- ------------------------------------------------------------------------------------------------------

RLCM                        Per RLCM deployed                 [CONFIDENTIAL PORTION OMITTED] x
                      [CONFIDENTIAL PORTION OMITTED]                    No of RLCMs

- ------------------------------------------------------------------------------------------------------

RSC                        Per RSC line drawer                [CONFIDENTIAL PORTION OMITTED] x
                      [CONFIDENTIAL PORTION OMITTED]               No of RSC line drawers
                                                           (Minimum charge [CONFIDENTIAL PORTION
                                                                     OMITTED] per RSC)

- ------------------------------------------------------------------------------------------------------

LCM                              Per LCM                      [CONFIDENTIAL PORTION OMITTED] x
                      [CONFIDENTIAL PORTION OMITTED]                     No of LCMs

- ------------------------------------------------------------------------------------------------------

LCME                             Per LCME                     [CONFIDENTIAL PORTION OMITTED] x
                      [CONFIDENTIAL PORTION OMITTED]                    No of LCMEs
- ------------------------------------------------------------------------------------------------------

</TABLE>

[CONFIDENTIAL PORTION OMITTED]

MODULE D          ACD

This Module offers [CONFIDENTIAL PORTION OMITTED]


MODULE E          COMPUCALL

This module supports [CONFIDENTIAL PORTION OMITTED]


The RTU fee for each CompuCall link is [CONFIDENTIAL PORTION OMITTED]



                                       19
<PAGE>
MODULE F          VOICE MAIL INTEGRATION

This provides the ability to interface the DMS-100 to Voice Mail systems
[CONFIDENTIAL PORTION OMITTED]


MODULE G           DIGITAL PABX ACCESS

This application module provides [CONFIDENTIAL PORTION OMITTED] signalling.
[CONFIDENTIAL PORTION OMITTED]

G1       ISDN PRI

[CONFIDENTIAL PORTION OMITTED]

G2       DPNSS

[CONFIDENTIAL PORTION OMITTED]


MODULE H          ADVANCED NETWORKING

H1                ANSI ISUP

This application module provides the ability to connect DMS-100 switches using
ANSI ISUP+ signalling [CONFIDENTIAL PORTION OMITTED]


                                       20
<PAGE>
H2                NETWORK CENTREX/VPN

[CONFIDENTIAL PORTION OMITTED]

H3                NETWORK ACD

This Module enhances Module D by [CONFIDENTIAL PORTION OMITTED]


H4                NETWORK VOICE MAIL

This Module allows [CONFIDENTIAL PORTION OMITTED]


H5                NETWORKED DPNSS TRANSPARENCY

This Module provides [CONFIDENTIAL PORTION OMITTED]


MODULE I          ENHANCED SYSTEM FEATURE

This application module contains a number of advanced system features to enhance
the operation of the DMS-100.

[CONFIDENTIAL PORTION OMITTED]



                                       21
<PAGE>
MODULE J          ISDN BRI

This module includes the capability to provide ISDN BRI from the DMS-100 as
defined in NT Systems Engineering bulletin SEB-94-05-004 Issue 1.

[CONFIDENTIAL PORTION OMITTED]

MODULE K          CLASS

This module provides Custom Local Area Signalling Services (CLASS) through
delivery of the Calling Line Identification (CLI).

[CONFIDENTIAL PORTION OMITTED]





                                       22
<PAGE>
5)                CATV SOFTWARE PRICING

- -        BCS34
- -        BCS34+
- -        UK002 (PART)

SOFTWARE PACKAGES

<TABLE>
<CAPTION>
- -----------------------------------------------------------------------------------------------------------

A        BASE SOFTWARE (INC CORE CENTREX)
- -----------------------------------------------------------------------------------------------------------
                                NTX FEATURE
     MODULE REF       OPTION                                                     BCS      BCS      UK002
- ---------------------
  NEW        OLD                  PACKAGE                                         34      34+
- ----------------------------------------------                                 ----------------------------
<S>     <C>            <C>    <C>                                              <C>       <C>       <C>
AA.01    Hardware       AB     NTXD18AB                                           V        V         V
- ----------------------------------------------                                 ----------------------------
AA.02    Hardware       AB     NTX940AA                                           V        V         V
- ----------------------------------------------                                 ----------------------------
AA.03    Hardware       AB     NTX941AA                                           V        V         V
- ----------------------------------------------                                 ----------------------------
AA.04    Hardware       AB     NTX942AB                [CONFIDENTIAL              V        V         V
- ----------------------------------------------                                 ----------------------------
AA.05    Hardware       AB     NTX950AA                                           V        V         V
- ----------------------------------------------                                 ----------------------------
AA.06    Hardware       AB     NTX951AA                                           V        V         V
- ----------------------------------------------                                 ----------------------------
AA.07    Hardware       AB     NTXE54AA                   PORTION                 V        V         V
- ----------------------------------------------                                 ----------------------------
AA.09    Hardware       AB     NTXF16AA                                           V        V         V
- ----------------------------------------------                                 ----------------------------
AA.10    Hardware       AB     NTXR46AA                                           V        V         V
- ----------------------------------------------                                 ----------------------------
AA.11    Hardware        A     NTXP10AA                   OMITTED]                V        V         V
- ----------------------------------------------                                 ----------------------------
AA.12    Hardware       BC     NTXE01AA                                           V        V         V
- ----------------------------------------------                                 ----------------------------
AA.13    Hardware       BC     NTXP13AA                                           V        V         V
- ----------------------------------------------                                 ----------------------------
AA.14    Hardware       BC     NTXD44AB                                           V        V         V
- ----------------------------------------------                                 ----------------------------
AA.15    Hardware       BC     NTXF20AA                                           V        V         V
- ----------------------------------------------                                 ----------------------------
AA.16    Hardware       BC     NTXN18AA                                           V        V         V
- ----------------------------------------------                                 ----------------------------
AA.17    Hardware       BC     NTXF71AB                                           V        V         V
- ----------------------------------------------                                 ----------------------------
AA.18    Hardware       BC     NTXN19AA                                           V        V         V
- ----------------------------------------------                                 ----------------------------
AA.19    Hardware       BC     NTX839AB                                           V        V         V
- ----------------------------------------------                                 ----------------------------
AA.20    Hardware       BC     NTXR72AA                                           V        V         V
- ----------------------------------------------                                 ----------------------------
AA.21    Hardware        C     NTXD25AA                                           V        V         V
- ----------------------------------------------                                 ----------------------------
AA.22    Hardware        C     NTX940AA                                           V        V         V
- ----------------------------------------------                                 ----------------------------
AA.23    Hardware        C     NTX941AA                                           V        V         V
- ----------------------------------------------                                 ----------------------------
AA.24    Hardware        C     NTX942AB                                           V        V         V
- ----------------------------------------------                                 ----------------------------
AA.25    Hardware        C     NTX950AA                                           V        V         V
- ----------------------------------------------                                 ----------------------------
AA.26    Hardware        C     NTX951AA                                           V        V         V
- ----------------------------------------------                                 ----------------------------
AA.27    Hardware        C     NTXE54AA                                           V        V         V
- ----------------------------------------------                                 ----------------------------
AA.28    Hardware        C     NTXF97AA                                           V        V         V
- ----------------------------------------------                                 ----------------------------
AA.29    Hardware        C     NTXR46AA                                           V        V         V
- -----------------------------------------------------------------------------------------------------------

                                       23
<PAGE>
- -----------------------------------------------------------------------------------------------------------
                                NTX FEATURE
     MODULE REF       OPTION                                                     BCS      BCS      UK002
- ---------------------
  NEW        OLD                  PACKAGE                                         34      34+
- ----------------------------------------------                                 ----------------------------
AA.30    C7 Sub.1              NTX040AA                [CONFIDENTIAL              V        V         V
- ----------------------------------------------                                 ----------------------------
AA.31    C7 Sub.2              NTX041AB                                           V        V         V
- ----------------------------------------------                                 ----------------------------
AA.32    C7 Sub.3              NTX167AB                   PORTION                 V        V         V
- ----------------------------------------------                                 ----------------------------
AA.33    C7 Sub.4              NTX550AA                                           V        V         V
- ----------------------------------------------                                 ----------------------------
AA.34    C7 Sub.5              NTX936AB                   OMITTED]                V        V         V
- ----------------------------------------------                                 ----------------------------
AA.35    C7 Sub.6              NTXA79AA                                           V        V         V
- ----------------------------------------------                                 ----------------------------
AA.36    C7 Sub.7              NTXK49AA                                           V        V         V
- -----------------------------------------------------------------------------------------------------------



                                       24
<PAGE>


                                                                              C:\DATA\EDGAR\Gpaamt7.d
- -----------------------------------------------------------------------------------------------------------

     MODULE REF      NTX PACKAGE                                                BCS 34  BCS 34+    UK002
- -------------------------------------                                          ----------------------------
  NEW        OLD
- -------------------------------------                                          ----------------------------
  A.01      1.01     NTX003AB                                                     V        V         V
- -------------------------------------                                          ----------------------------
  A.02      1.02     NTX000AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  A.03      1.03     NTX001AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  A.04      1.04     NTX006AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  A.05      1.05     NTX007AB                      [CONFIDENTIAL                  V        V         V
- -------------------------------------                                          ----------------------------
  A.06      1.06     NTX053AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  A.07      1.07     NTX056AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  A.08      1.08     NTX901AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  A.09      1.09     NTX902AA                         PORTION                     V        V         V
- -------------------------------------                                          ----------------------------
  A.10      1.10     NTX048AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  A.11      1.11     NTX048BA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  A.12      1.12     NTX051AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  A.13      1.13     NTX054AA                        OMITTED]                     V        V         V
- -------------------------------------                                          ----------------------------
  A.14      1.14     NTX055AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  A.15      1.15     NTX055AB                                                     V        V         V
- -------------------------------------                                          ----------------------------
  A.16      1.16     NTX055AC                                                     V        V         V
- -------------------------------------                                          ----------------------------
  A.17      1.17     NTX059AB                                                     V        V         V
- -------------------------------------                                          ----------------------------
  A.18      1.18     NTX064AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  A.19      1.19     NTX065AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  A.20      1.20     NTX074AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  A.21      1.21     NTX082AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  A.22      1.22     NTX085AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  A.23      1.23     NTX087AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  A.24      1.24     NTX088AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  A.25      1.25     NTX120AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  A.26      1.26     NTX122AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  A.27      1.27     NTX142AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  A.28      1.28     NTX269AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  A.29      1.29     NTX270AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  A.30      1.30     NTX273AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  A.31      1.31     NTX274AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  A.32      1.32     NTX292AB                                                     V        V         V
- -------------------------------------                                          ----------------------------
  A.33      1.33     NTX385AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  A.34      1.34     NTX445AB                                                     V        V         V
- -------------------------------------                                          ----------------------------
  A.35      1.35     NTX560AB                                                     V        V         V
- -------------------------------------                                          ----------------------------
  A.36      1.36     NTX733AE                                                     V        V         V
- -------------------------------------                                          ----------------------------
  A.37      1.37     NTX738AC                                                     V        V         V
- -------------------------------------                                          ----------------------------
  A.38      1.38     NTX750AB                                                     V        V         V
- -------------------------------------                                          ----------------------------
  A.39      1.39     NTX913AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  A.40      1.40     NTXA11AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  A.41      1.41     NTXA15AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  A.42      1.42     NTXB57AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  A.43      1.43     NTXB74AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  A.44      1.44     NTXU17AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  A.45      1.45     NTXE29AA                                                     V        V         V
- ------------------------------------                                          ----------------------------
  A.46      1.46     NTXE65AA                                                     V        V         V
- --------------------------------------                                          ----------------------------
  A.47      1.47     NTXE98AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  A.48      1.48     NTXH62AA                                                     V        V         V
- -----------------------------------------------------------------------------------------------------------


                                       25
<PAGE>
- -----------------------------------------------------------------------------------------------------------

     MODULE REF      NTX PACKAGE                                                BCS 34  BCS 34+    UK002
- -------------------------------------                                          ----------------------------
  NEW        OLD
- -------------------------------------                                          ----------------------------
  A.49      1.49     NTXJ44AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  A.50      1.50     NTX418AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  A.51      1.52     NTX717AB                                                     V        V         V
- -------------------------------------                                          ----------------------------
  A.52      1.53     NTX730AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  A.53      1.54     NTX057AB                                                     V        V         V
- -------------------------------------                                          ----------------------------
  A.54      1.55     NTX121AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  A.55      1.57     NTX272AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  A.56      1.58     NTX293AA                      [CONFIDENTIAL                  V        V         V
- -------------------------------------                                          ----------------------------
  A.57      1.60     NTXF87AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  A.58      1.61     NTXJ35AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  A.59      1.62     NTXK01AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  A.60      1.63     NTXK65AA                         PORTION                     V        V         V
- -------------------------------------                                          ----------------------------
  A.61      1.64     NTXK68AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  A.62      1.66     NTXU15AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  A.63      1.67     NTXA67AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  A.64      2.00     NTX081AA                        OMITTED]                     V        V         V
- -------------------------------------                                          ----------------------------
  A.65      2.01     NTXD07AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  A.66      2.02     NTX042AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  A.67      2.03     NTX159AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  A.68      2.04     NTX737AB                                                     V        V         V
- -------------------------------------                                          ----------------------------
  A.69      2.05     NTXE28AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  A.70      2.06     NTX165AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  A.71      2.07     NTXH53AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  A.72      3.02     NTXA64AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  A.73      6.00     NTX937AB                                                     V        V         V
- -------------------------------------                                          ----------------------------
  A.74      8.01     NTXK03AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  A.75      9.01     NTXW00AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  A.76      9.02     NTXW22AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  A.77      10.01    NTXK00AB                                                     V        V         V
- -------------------------------------                                          ----------------------------
  A.78      1.69     NTX100AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  A.79      1.70     NTX244AB                                                     V        V         V
- -------------------------------------                                          ----------------------------

  A.80      1.77     NTX611AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  A.81      1.80     NTX964AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  A.82      1.81     NTX968AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  A.83      1.82     NTX105AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  A.84      1.85     NTX433AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  A.85      1.87     NTX008AB                                                     V        V         V
- -------------------------------------                                          ----------------------------
  A.86      1.89     NTX431AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  A.87      1.91     NTX413AB                                                     V        V         V
- -------------------------------------                                          ----------------------------
  A.88      1.92     NTX824AB                                                     V        V         V
- -------------------------------------                                          ----------------------------
  A.89      1.93     NTXJ58AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  A.90      1.94     NTX103BA                                                     V        V         V
- -------------------------------------                                          ----------------------------

  A.91      1.96     NTXJ84AA                                                     V        V         V
- -----------------------------------------------------------------------------------------------------------

                                       26
<PAGE>
- -----------------------------------------------------------------------------------------------------------

     MODULE REF      NTX PACKAGE                                                BCS 34  BCS 34+    UK002
- -------------------------------------                                          ----------------------------
  NEW        OLD
- -------------------------------------                                          ----------------------------
  A.92      1.97     NTX101AA (PART)               [CONFIDENTIAL                  V        V         V
- -------------------------------------                                          ----------------------------
  A.93      1.98     NTX103AA (PART)                                              V        V         V
- -------------------------------------                                          ----------------------------
  A.94      1.99     NTX435AA (PART)                  PORTION                     V        V         V
- -------------------------------------                                          ----------------------------
  A.95      6.03     NTXK54AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  A.96               NTX87AA                                                               V         V
- -------------------------------------                                          ----------------------------
  A.97               NTXH51AA                        OMITTED]                              V         V
- -------------------------------------                                          ----------------------------
  A.98               NTXK79AA                                                              V         V
- -------------------------------------                                          ----------------------------
  A.99               NTXR34AA                                                              V         V
- -------------------------------------                                          ----------------------------
 A.100      1.95     NTXP57AA                                                     V        V         V
- -----------------------------------------------------------------------------------------------------------

B.       ADVANCED RESIDENTIAL SERVICES
- -----------------------------------------------------------------------------------------------------------
                     NTX FEATURE
     MODULE REF      PACKAGE                                                     BCS      BCS      UK002
                                                                                  34      34+
- -------------------------------------                                          ----------------------------
  NEW        OLD
- -------------------------------------                                          ----------------------------
  B.02      3.01     NTX820AA                      [CONFIDENTIAL                  V        V         V
- -------------------------------------                                          ----------------------------
  B.03      3.03     NTXF82AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  B.04      3.04     NTXJ38AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  B.05      3.05     NTX127AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  B.06      3.06     NTXJ70AA                         PORTION                     V        V         V
- -------------------------------------                                          ----------------------------
  B.07      3.07     NTX219AB                                                     V        V         V
- -------------------------------------                                          ----------------------------
  B.08      3.08     NTXJ47AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  B.09      3.09     NTX898AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  B.10      3.10     NTX436AA                        OMITTED]                     V        V         V
- -------------------------------------                                          ----------------------------
  B.11      15.01    NTXN75AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  B.12               NTXA18AA                                                              V         V
- -------------------------------------                                          ----------------------------
  B.13               NTXA88AA                                                              V         V
- -----------------------------------------------------------------------------------------------------------


                                       27
<PAGE>
- -----------------------------------------------------------------------------------------------------------

C.       CENTREX/VPN
- -----------------------------------------------------------------------------------------------------------

C1       MF CENTREX/VPN
- -----------------------------------------------------------------------------------------------------------
                     NTX     FEATURE
     MODULE REF      PACKAGE                                                     BCS      BCS      UK002
                                                                                  34      34+
- -------------------------------------                                          ----------------------------
  NEW        OLD
- -------------------------------------                                          ----------------------------
  C.04   16.00       NTX427AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  C.05   16.01       NTX111AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  C.06   16.02       NTXA31AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  C.07   16.03       NTX260AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  C.08   16.04       NTX412CB                                                     V        V         V
- -------------------------------------                                          ----------------------------
  C.09   16.05       NTX414AA                      [CONFIDENTIAL                  V        V         V
- -------------------------------------                                          ----------------------------
  C.10   16.06       NTXJ83AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  C.11   16.07       NTX719AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  C.12   16.12       NTXA27AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  C.13   16.13       NTXA33AA                         PORTION                     V        V         V
- -------------------------------------                                          ----------------------------
  C.14   16.15       NTXA72AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  C.15   16.16       NTXA84AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  C.16   16.17       NTXE39AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  C.17   16.20       NTXJ82AA                        OMITTED]                     V        V         V
- -------------------------------------                                          ----------------------------
  C.18   16.21       NTXA77AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  C.19   16.22       NTXE44AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  C.20   16.23       NTX410AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  C.21   16.24       NTX262AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  C.22   16.25       NTX434AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  C.23   16.26       NTX101AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  C.24   16.27       NTX102AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  C.25   16.28       NTX103AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  C.26   16.29       NTX728AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  C.27   16.30       NTXA32AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  C.28   16.31       NTX435AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  C.40   30.01       NTX112AB                                                     V        V         V
- -------------------------------------                                          ----------------------------
  C.44               NTX853AA                                                              V         V
- -------------------------------------                                          ----------------------------
  C.45               NTX877AB                                                              V         V
- -------------------------------------                                          ----------------------------
  C.49               NTX110AA                                                              V         V
- -----------------------------------------------------------------------------------------------------------

C2       ADVANCED CENTREX
- -----------------------------------------------------------------------------------------------------------

C2.1     SRU ADVANCED CENTREX
- -----------------------------------------------------------------------------------------------------------
                     NTX     FEATURE
     MODULE REF      PACKAGE                                                     BCS      BCS      UK002
                                                   [CONFIDENTIAL                  34      34+
- -------------------------------------                                          ----------------------------
  NEW        OLD                                      PORTION
- -------------------------------------                                          ----------------------------
  C.01   11.01       NTXH96AA                        OMITTED]                     V        V         V
- -----------------------------------------------------------------------------------------------------------

C2.2     RSC-S ADVANCED CENTREX
- -----------------------------------------------------------------------------------------------------------

                                       28
<PAGE>
- -----------------------------------------------------------------------------------------------------------
                     NTX     FEATURE
     MODULE REF      PACKAGE                       [CONFIDENTIAL                 BCS      BCS      UK002
                                                                                  34      34+

- -------------------------------------                                          ----------------------------
  NEW        OLD                                      PORTION
- -------------------------------------                                          ----------------------------
  C.02   12.01       NTX145AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  C.03   12.03       NTX152AB                        OMITTED]                     V        V         V
- -----------------------------------------------------------------------------------------------------------





                                       29
<PAGE>
- -----------------------------------------------------------------------------------------------------------

C2.3     RLCM ADVANCED CENTREX
- -----------------------------------------------------------------------------------------------------------
                     NTX     FEATURE
     MODULE REF      PACKAGE                                                     BCS      BCS      UK002
                                                                                  34      34+
- -------------------------------------                                          ----------------------------
  NEW        OLD                                   [CONFIDENTIAL

- -------------------------------------                                          ----------------------------
  C.35   25.01       NTX146AA                         PORTION                     V        V         V
- -------------------------------------                                          ----------------------------
  C.36   25.02       NTX147AB                                                     V        V         V
- -------------------------------------                                          ----------------------------
  C.37   25.03       NTX154AA                        OMITTED]                     V        V         V
- -------------------------------------                                          ----------------------------
  C.38   25.04       NTX156AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  C.39   25.05       NTX963AA                                                     V        V         V
- -----------------------------------------------------------------------------------------------------------

C2.4     P PHONE ADVANCED CENTREX
- -----------------------------------------------------------------------------------------------------------
                     NTX     FEATURE
     MODULE REF      PACKAGE                                                     BCS      BCS      UK002
                                                                                  34      34+
- -------------------------------------                                          ----------------------------
  NEW        OLD
- -------------------------------------                                          ----------------------------
  C.29   19.01       NTX108AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  C.30   19.02       NTX946AB                                                     V        V         V
- -------------------------------------                                          ----------------------------
  C.31   19.04       NTXE47AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  C.32   19.04       NTX106AA                      [CONFIDENTIAL                  V        V         V
- -------------------------------------                                          ----------------------------
  C.33   19.05       NTX878AE                                                     V        V         V
- -------------------------------------                                          ----------------------------
  C.34   19.06       NTXE62AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  C.41               NTXJ97AA                         PORTION                              V         V
- -------------------------------------                                          ----------------------------
  C.42               NTXJ98AA                                                              V         V
- -------------------------------------                                          ----------------------------
  C.43               NTXN65AA                                                              V         V
- -------------------------------------                                          ----------------------------
  C.46               NTXE40AB                        OMITTED]                              V         V
- -------------------------------------                                          ----------------------------
  C.47               NTXF88AB                                                              V         V
- -------------------------------------                                          ----------------------------
  C.48               NTX822AA                                                              V         V
- -------------------------------------                                          ----------------------------
  C.50               NTXR44AA                                                              V         V
- -----------------------------------------------------------------------------------------------------------

D.       AUTOMATIC CALL DISTRIBUTION (ACD)
- -----------------------------------------------------------------------------------------------------------
                    NTX     FEATURE
     MODULE REF      PACKAGE                                                     BCS      BCS      UK002
                                                                                  34      34+
- --------------------------------------                                          ----------------------------
  NEW        OLD
- -------------------------------------                                          ----------------------------
  D.01   18.01       NTXD14AG                      [CONFIDENTIAL                  V        V         V
- -------------------------------------                                          ----------------------------
  D.02               NTX407AB                                                     V        V         V
- -------------------------------------                                          ----------------------------
  D.03               NTX415AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  D.04               NTX416AJ                                                     V        V         V
- -------------------------------------                                          ----------------------------
  D.05               NTX727AD                         PORTION                     V        V         V
- -------------------------------------                                          ----------------------------
  D.06               NTX991AF                                                     V        V         V
- -------------------------------------                                          ----------------------------
  D.07               NTXA52AB                                                     V        V         V
- -------------------------------------                                          ----------------------------
  D.08   18.02       NTXE09AB                                                     V        V         V
- -------------------------------------                                          ----------------------------
  D.09   18.03       NTX417AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  D.10   22.01       NTXE22AA                         OMITTED]                    V        V         V
- -------------------------------------                                          ----------------------------
  D.11               NTXP53AA                                                              V         V
- -------------------------------------                                          ----------------------------
  D.12               NTX420AA                                                              V         V
- -----------------------------------------------------------------------------------------------------------

                                       30
<PAGE>
- -----------------------------------------------------------------------------------------------------------

E.       COMPUCALL
- -----------------------------------------------------------------------------------------------------------
                     NTX     FEATURE
     MODULE REF      PACKAGE                       [CONFIDENTIAL                 BCS      BCS      UK002
                                                                                  34      34+
- ------------------------------------                                          ----------------------------
  NEW        OLD                                      PORTION
- -------------------------------------                                          ----------------------------
  E.01               NTXJ59AC                                                              V         V
- ------------------------------------                                          ----------------------------
  E.02               NTXJ60AB                        OMITTED]                              V         V
- -------------------------------------                                          ----------------------------
  E.03               NTXJ62AA                                                              V         V
- -----------------------------------------------------------------------------------------------------------

F.       VOICE MAIL INTEGRATION
- -----------------------------------------------------------------------------------------------------------
                     NTX     FEATURE               [CONFIDENTIAL
     MODULE REF      PACKAGE                                                     BCS      BCS      UK002
                                                                                  34      34+
- -------------------------------------                                          ----------------------------
  NEW        OLD                                      PORTION
- -------------------------------------                                          ----------------------------
  F.01   14.00       NTX119AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  F.02   14.01       NTX732AA                        OMITTED]                     V        V         V
- -----------------------------------------------------------------------------------------------------------

G1.      DIGITAL PBX ACCESS - ISDN PRI
- -----------------------------------------------------------------------------------------------------------
                     NTX     FEATURE
     MODULE REF      PACKAGE                       [CONFIDENTIAL                 BCS      BCS      UK002
                                                                                  34      34+
- -------------------------------------                                          ----------------------------
  NEW        OLD                                      PORTION
- -------------------------------------                                          ----------------------------
  G.04               NTXV06AA                                                              V         V
- -------------------------------------                                          ----------------------------
  G.05               NTXV07AA                                                              V         V
- -------------------------------------                                          ----------------------------
  G.06               NTX791AA                        OMITTED]                              V         V
- -------------------------------------                                          ----------------------------
  G.07               NTX790AC                                                              V         V
- -------------------------------------                                          ----------------------------
  G.08               NTXV00AA                                                              V         V
- -----------------------------------------------------------------------------------------------------------

G2       DIGITAL PBX ACCESS - DPNSS
- -----------------------------------------------------------------------------------------------------------
                     NTX     FEATURE
     MODULE REF      PACKAGE                                                     BCS      BCS      UK002
                                                   [CONFIDENTIAL                  34      34+
- -------------------------------------                                          ----------------------------
  NEW        OLD
- -------------------------------------                                          ----------------------------
  G.01   7.01        NTX958AA                         PORTION                     V        V         V
- -------------------------------------                                          ----------------------------
  G.02   7.04        NTXK18AB                                                     V        V         V
- -------------------------------------                                          ----------------------------
  G.03   7.05        NTXK44AA                        OMITTED]                     V        V         V
- -----------------------------------------------------------------------------------------------------------

H.       ADVANCED NETWORKING
- -----------------------------------------------------------------------------------------------------------

H1       ANSI ISUP
- -----------------------------------------------------------------------------------------------------------
                     NTX     FEATURE
     MODULE REF      PACKAGE                                                     BCS      BCS      UK002
                                                                                  34      34+
- -------------------------------------                                          ----------------------------
  NEW        OLD
- -------------------------------------                                          ----------------------------
  H.01   4.00        NTX911AA                      [CONFIDENTIAL                  V        V         V
- -------------------------------------                                          ----------------------------
  H.02   4.01        NTXK34AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  H.03   5.01        NTXE66AA                         PORTION                     V        V         V
- -------------------------------------                                          ----------------------------
  H.04   5.02        NTXJ68AA                                                     V        V         V
- --------------------------------------                                          ----------------------------
  H.05   5.03        NTXA79AA                        OMITTED]                     V        V         V
- -------------------------------------                                          ----------------------------
  H.06   5.04        NTXA36AA                                                     V        V         V
- -----------------------------------------------------------------------------------------------------------


                                       31
<PAGE>
- -----------------------------------------------------------------------------------------------------------

H2       NETWORK CENTREX VPN
- -----------------------------------------------------------------------------------------------------------
                     NTX     FEATURE
     MODULE REF      PACKAGE                                                     BCS      BCS      UK002
                                                                                  34      34+
- -------------------------------------                                          ----------------------------
  NEW        OLD
- -------------------------------------                                          ----------------------------
  H.08   21.03       NTXA35AA                      [CONFIDENTIAL                  V        V         V

- -------------------------------------                                          ----------------------------
  H.09   21.05       NTXA80AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  H.11   27.02       NTXA39AA                         PORTION                     V        V         V
- -------------------------------------                                          ----------------------------
  H.12   27.03       NTX432AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  H.13   27.04       NTX430AA                                                     V        V         V
- -------------------------------------                                          ----------------------------
  H.14   28.02       NTXB55AD                        OMITTED]                     V        V         V
- -------------------------------------                                          ----------------------------
  H.15   28.01       NTXK45AB                                                     V        V         V
- -------------------------------------                                          ----------------------------
  H.18               NTXN01AB                                                              V         V
- -------------------------------------                                          ----------------------------
  H.19               NTXR43AA                                                              V         V
- -------------------------------------                                          ----------------------------
  H.20               NTXR45AA                                                              V         V
- -----------------------------------------------------------------------------------------------------------

H3       NETWORK ACD
- -----------------------------------------------------------------------------------------------------------
                     NTX     FEATURE               [CONFIDENTIAL
     MODULE REF      PACKAGE                                                     BCS      BCS      UK002
                                                      PORTION                     34      34+
- -------------------------------------                                          ----------------------------
  NEW        OLD
- -------------------------------------                                          ----------------------------
  H.10   23.01       NTXN46AA                        OMITTED]                     V        V         V
- -----------------------------------------------------------------------------------------------------------

H4       NETWORKED VOICEMAIL
- -----------------------------------------------------------------------------------------------------------
                     NTX     FEATURE               [CONFIDENTIAL
     MODULE REF      PACKAGE                                                     BCS      BCS      UK002
                                                      PORTION                     34      34+
- -------------------------------------                                          ----------------------------
  NEW        OLD
- -------------------------------------                                          ----------------------------
  H.16               NTXA68AA                        OMITTED]                              V         V
- -------------------------------------                                          ----------------------------
  H.17               NTXQ64AA                                                              V         V
- -----------------------------------------------------------------------------------------------------------

H5       NETWORKED DPNSS TRANSPARENCY
- -----------------------------------------------------------------------------------------------------------
                     NTX     FEATURE               [CONFIDENTIAL
     MODULE REF      PACKAGE                                                     BCS      BCS      UK002
                                                      PORTION                     34      34+
- -------------------------------------                                          ----------------------------
  NEW        OLD
- -------------------------------------                                          ----------------------------
  H.07   17.02       NTXK43AA                        OMITTED]                     V        V         V
- -----------------------------------------------------------------------------------------------------------


                                       32
<PAGE>
- -----------------------------------------------------------------------------------------------------------

I.       ENHANCED SYSTEM FEATURES
- -----------------------------------------------------------------------------------------------------------
                     NTX     FEATURE
     MODULE REF      PACKAGE                                                     BCS      BCS      UK002
                                                                                  34      34+
- -------------------------------------                                          ----------------------------
  NEW        OLD
- -------------------------------------                                          ----------------------------
  I.01   24.01       NTX060AB                                                     V        V         V
- -------------------------------------                                          ----------------------------
  I.02   24.02       NTX060BB                                                     V        V         V
- -------------------------------------                                          ----------------------------
  I.03               NTX437AA                      [CONFIDENTIAL                           V         V

- -------------------------------------                                          ----------------------------
  I.04               NTX196AA                                                              V         V
- -------------------------------------                                          ----------------------------
  I.05               NTXN16AA                                                              V         V
- -------------------------------------                                          ----------------------------
  I.06               NTX302AA                                                              V         V
- -------------------------------------                                          ----------------------------
  I.07               NTX812AA                         PORTION                              V         V
- -------------------------------------                                          ----------------------------
  I.08               NTX048CA                                                              V         V
- -------------------------------------                                          ----------------------------
  I.09               NTXN85AA                                                              V         V
- -------------------------------------                                          ----------------------------
  I.10               NTXE65AA                                                              V         V
- -------------------------------------                                          ----------------------------
  I.11               NTX149AB                                                              V         V
- -------------------------------------                                          ----------------------------
  I.12               NTXH52AA                        OMITTED]                              V         V
- -------------------------------------                                          ----------------------------
  I.13               NTXK77AA                                                              V         V
- -------------------------------------                                          ----------------------------
  I.14               NTXP92AA                                                              V         V
- -------------------------------------                                          ----------------------------
  I.15               NTX150AA                                                              V         V
- -------------------------------------                                          ----------------------------
  I.16               NTX147AB                                                              V         V
- -------------------------------------                                          ----------------------------
  I.17               NTXR42AA                                                              V         V
- -----------------------------------------------------------------------------------------------------------

J.       ISDN BRI
- -----------------------------------------------------------------------------------------------------------
                     FUNCTIONAL
     MODULE REF      ORDERING GROUPS               [CONFIDENTIAL                 BCS      BCS      UK002
                                                                                  34      34+
- -------------------------------------                                          ----------------------------
  NEW        OLD                                      PORTION
- -------------------------------------                                          ----------------------------
  J.01               NI000007                                                                        V
- -------------------------------------                                          ----------------------------
  J.02               ISD00005                        OMITTED]                                        V
- -----------------------------------------------------------------------------------------------------------

K.       CLASS
- -----------------------------------------------------------------------------------------------------------
                     FUNCTIONAL
     MODULE REF      ORDERING GROUPS               [CONFIDENTIAL                 BCS      BCS      UK002
                                                                                  34      34+
- -------------------------------------                                          ----------------------------
  NEW        OLD
- -------------------------------------                                          ----------------------------
  K.01               RES00003                                                                        V
- -------------------------------------                                          ----------------------------
  K.02               RES00021                         PORTION                                        V
- -------------------------------------                                          ----------------------------
  K.03               RES00022                                                                        V
- -------------------------------------                                          ----------------------------
  K.04               RES00023                                                                        V
- -------------------------------------                                          ----------------------------
  K.05               RES00027                                                                        V
- -------------------------------------                                          ----------------------------
  K.06               RES00029                        OMITTED]                                        V
- -------------------------------------                                          ----------------------------
  K.07               MDC00004                                                                        V
- -------------------------------------                                          ----------------------------
  K.08               MDC00033                                                                        V
- -----------------------------------------------------------------------------------------------------------

</TABLE>


                                       33

<PAGE>
      "[CONFIDENTIAL PORTION OMITTED]" INDICATES THAT INFORMATION HAS BEEN
                OMITTED AND FILED SEPARATELY WITH THE COMMISSION
                PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT

                                 AMENDMENT NO. 8
                       TO THE GENERAL PURCHASING AGREEMENT
                                   NTE-GPA0001

This Amendment No. 8, dated this 5th day of February 1996 shall be deemed
effective as of the 25th day of September 1995, by and between the companies
listed under Exhibit A in the General Purchasing Agreement (GPA), dated 1 March
1993 ("Customer"), and Nortel Limited, ("Supplier").

                                    RECITALS

WHEREAS, Customer and Supplier entered into a General Purchasing Agreement dated
the first day of March 1993; and

WHEREAS, Customer and Supplier amended the General Purchasing Agreement by
entering into Amendment No. 1, dated 1 July 1993; and

WHEREAS, Customer and Supplier amended the General Purchasing Agreement by
entering into Amendment No. 2, dated 29 October 1993; and

WHEREAS, Customer and Supplier amended the General Purchasing Agreement by
entering into Amendment No. 3, dated 12 November 1993; and

WHEREAS, Customer and Supplier amended the General Purchasing Agreement by
entering into Amendment No. 4, dated 10 December 1993; and

WHEREAS, Customer and Supplier amended the General Purchasing Agreement by
entering into Amendment No. 5, dated 24 May 1994; and

WHEREAS, Customer and Supplier amended the General Purchasing Agreement by
entering into Amendment No. 6, dated 29 June 1995; and

WHEREAS, Customer and Supplier amended the General Purchasing Agreement by
entering into Amendment No. 7, dated 30 June 1995; and

WHEREAS, Customer and Supplier agree to further amend the GPA pursuant to the
terms and conditions set forth herein.

                                    AGREEMENT

In consideration of the mutual promises and advantages to the parties, the
parties incorporate by reference and agree to the accuracy of the above recitals
and further agree as follows:

<PAGE>
TITLE PAGE is hereby amended to include Diamond Cable Communications Plc now
stated as follows:


                                 TELEWEST GROUP


                               BELL CABLEMEDIA PLC

                 TELECENTIAL COMMUNICATIONS LIMITED PARTNERSHIP

                           IVS CABLE HOLDINGS LIMITED

                            COMCAST TEESSIDE LIMITED

                             CAMBRIDGE CABLE LIMITED

                        DIAMOND CABLE COMMUNICATIONS PLC

                          GENERAL PURCHASING AGREEMENT

                                   NTE-GPA0001

                                   PROPRIETARY

           THE INFORMATION CONTAINED HEREIN SHOULD NOT BE DISCLOSED TO
           UNAUTHORISED PERSONS, IT IS INTENDED FOR USE BY AUTHORISED
                REPRESENTATIVES OF THE PARTIES TO THIS DOCUMENT



CLAUSE 1.1.6, The definition of "Consortium" is hereby revised to include
Diamond Cable Communications Limited, now stated as follows:

1.1.6. "Consortium" for the purposes of this Agreement means all Customers
listed under Exhibit A subject to Clause 2.40 entitled 'Several Liability' and
all actions to be taken by Consortium hereunder shall be taken respectively by:
1)TeleWest Communications Group Limited ("TeleWest") as the representative for
those Customers listed as TeleWest wholly owned franchises under Section 1,
Exhibit A and for those Customers listed as Limited Companies under Section 2,
Exhibit A; and 2) Bell Cablemedia plc ("BCM") as the representative for those
Customers listed as BCM wholly owned franchises under Section 3, Exhibit A; and
3) Telecential Communications Limited Partnership entering into agreement for
itself and on behalf of Telecential Communications (Herts) Limited Partnership
and Telecential Communications (Northants) Limited Partnership ("Telecential")
as the representative for those Customers listed as Telecential wholly owned
franchises under Section 4, Exhibit A and 4) Section 5) Exhibit A not used ; and
5) IVS Cable Holdings Limited ("IVS") as the representative for those Customers
listed as IVS wholly owned franchises under Section 6 Exhibit A. and 6) Comcast
Teesside Limited ("Comcast") as the representative for those Customers listed as
Comcast wholly owned franchises under Section 7 Exhibit A and 7) Cambridge Cable
Limited ("Cambridge") as the representative for those Customers listed as
Cambridge wholly owned franchises under Section 8 Exhibit A and 8) DIAMOND CABLE
COMUNICATIONS PLC ("DIAMOND") AS THE REPRESENTATIVE FOR THOSE CUSTOMERS LISTED
AS DIAMOND WHOLLY OWNED FRANCHISES UNDER SECTION 9 EXHIBIT A.


                                       2
<PAGE>
CLAUSE 2.48, is hereby amended to add Diamond as a party to be notified with all
correspondence required under this Agreement, now stated as follows:

2.48       NOTICES

Where written notices, demands, or other communications are required under this
Agreement to be made in writing, they shall be deemed duly given when made in
writing and delivered in hand, or upon receipt when properly addressed by
Recorded or Registered Post or other delivery service to the following
addresses:

         CUSTOMERS :


TeleWest Communications Group Ltd.           Bell Cablemedia plc
Attn : Contract Manager                      Attn : Group Director Engineering
Materials Management Department              Floor 3 Colne House
Unit 1, Genesis Business Park                Watford
Woking, Surrey, GU21 5RW                     Hertfordshire WD1 7EL


Telecential Communications Ltd Partnership        IVS Cable Holdings Limited
Attn : Contract Manager                           Attn : Contract Manager
Link 2 Beacontree Plaza, Gillette Way,            284 Weyhill Road
Basingstoke Road,                                 Andover
Reading RG2 0BS                                   Hampshire SP10 3LF

Cambridge Cable Limited.                          Comcast Teeside Limited
Attn: Director of Telecoms Networks               Attn: Company Secretary
Cambridge Science Park                            Wellington Court
Milton Road                                       De Havilland Avenue
Cambridge                                         Preston Farm
CB4 4WA                                           Stockton-on-Tees
                                                  Cleveland  TS18 3TA

DIAMOND CABLE COMMUNICATIONS LIMITED
ATTN: DIRECTOR OF TECHNICAL  SERVICES
DIAMOND PLAZZA
DALESIDE ROAD
NOTTINGHAM
NG2 3GG

SUPPLIER :

Commercial Manager; CATV Account Group
Nortel  Limited
Northern Telecom House
St. Cloud Way
Maidenhead, Berks
SL6 8XB

Addresses may be changed by written notices to the parties.


                                       3
<PAGE>
EXHIBIT A, is hereby amended to incorporate Diamond as Customers, now stated as
follows:

EXHIBIT A         CUSTOMERS

This Exhibit A is attached to and made part of that certain General Purchase
dated 1 March 1993 ("Agreement"), by and between Customer as defined in the
Agreement ("Customer") and Nortel Limited ("Supplier").

<TABLE>
<CAPTION>
      FRANCHISE                 FRANCHISE HOLDER                                          REG. NO.
- -------------------------------------------------------------------------------------------------------
<S>                             <C>                                                       <C>
1.    TELEWEST WHOLLY OWNED FRANCHISES
- -------------------------------------------------------------------------------------------------------
      Avon                      Avon Cable Joint Venture

      -------------------------------------------------------------------------------------------------
      Croydon, Kingston and     London South Cable Partnership
      Richmond and Merton and
      Sutton

      -------------------------------------------------------------------------------------------------
      North Thames Estuary      United Artists Communications (Thames Estuary)
      South Thames Estuary      Partnership

      -------------------------------------------------------------------------------------------------
      Edinburgh and             United Artists Communications (Scotland) Venture
      Livingston, Uddingston,
      Glenrothes, Dundee and
      Perth.

      -------------------------------------------------------------------------------------------------
      Tyneside                  United Artists Communications (North East) Partnership
- -------------------------------------------------------------------------------------------------------

2.    LIMITED COMPANIES

      Birmingham                Birmingham Cable Limited                                     2170379

      -------------------------------------------------------------------------------------------------
      The registered office          CABLE PHONE HOUSE,
      for the above listed           SMALL HEATH BUSINESS PARK,
      company is:                    TALBOT WAY, SMALL HEATH,
                                     BIRMINGHAM.  B10 OHJ
      -------------------------------------------------------------------------------------------------
      Camden, Enfield,          Cable London plc                                             1794264
      Hackney and Islington,
      Haringey
      -------------------------------------------------------------------------------------------------
      The registered office          100 CHALK FARM ROAD
      for the above listed           LONDON  NW1 8EH
      company is:

      -------------------------------------------------------------------------------------------------
      Hillingdon and Hounslow,  Windsor Television Limited                                   1745542
      Windsor
      -------------------------------------------------------------------------------------------------
      The registered office          CABLE HOUSE
      for the above listed           WATERSIDE DRIVE
      company is:                    LANGLEY, BERKSHIRE.  SL3 6EZ
      --------------------------------------------------------------------------------------------------


      Cotswolds                 TeleWest Communications Group Limited                        2514287

                                United Artists Communications (Cotswolds) Limited            1743081
- -------------------------------------------------------------------------------------------------------


                                       4
<PAGE>
3.    BCM WHOLLY OWNED FRANCHISES

      Tower Hamlet/Newham,      Bell Cablemedia Southern Region
      Greater London East,
      Havering,
      Waltham Forest,
      Dartford, Epping Forest,
      Ashford, Watford,
      Aylesbury, Worcester
      -------------------------------------------------------------------------------------------------

      Peterborough, Norwich,    Bell Cablemedia Eastern Region
      Whittlesey,
      Gt Yarmouth

      -------------------------------------------------------------------------------------------------
      Leeds, Wearside, York &   Bell Cablemedia Northern Region
      Harrogate

      -------------------------------------------------------------------------------------------------
      The registered office          IB PORLAND PLACE                                        2735732
      for the above listed           LONDON W1N 3AA
      company is:

- -------------------------------------------------------------------------------------------------------
  4   TELECENTIAL WHOLLY OWNED FRANCHISES

      Thames Valley             Telecential Communications Limited Partnership               2387692
      West Herts
      Northants
      Swindon
      Warwickshire
      Northamptonshire

      -------------------------------------------------------------------------------------------------
      The registered office          DRAGOON HOUSE
      for the above listed           37 ARTILLERY LANE
      company is:                    LONDON E1 7LT

- -------------------------------------------------------------------------------------------------------
  5   NOT USED

- -------------------------------------------------------------------------------------------------------
  6   IVS WHOLLY OWNED FRANCHISES

- -------------------------------------------------------------------------------------------------------
      Andover                   Andover Cablevision Limited

      -------------------------------------------------------------------------------------------------
      Salisbury                 Wessex Cable Limited

      -------------------------------------------------------------------------------------------------
      Stafford                  Stafford Communications Limited

      -------------------------------------------------------------------------------------------------
      Oxford                    Oxford Cable Limited
- -------------------------------------------------------------------------------------------------------

  7   COMCAST WHOLLY OWNED FRANCHISES
- -------------------------------------------------------------------------------------------------------

      Teesside                  Comcast Teesside Limited

      -------------------------------------------------------------------------------------------------
      Darlington                Comcast Darlington Limited

- -------------------------------------------------------------------------------------------------------

  8   CAMBRIDGE WHOLLY OWNED FRANCHISES
- -------------------------------------------------------------------------------------------------------

      Cambridge                 Cambridge Cable Limited

      -------------------------------------------------------------------------------------------------
      Harlow/Bishops-Stortford  Anglia Cable Communications Limited

      -------------------------------------------------------------------------------------------------
      Ipswich/Colchester        East Coast Cable Limited

      -------------------------------------------------------------------------------------------------
      Braintree                 Southern East Anglia Cable Limited
- -------------------------------------------------------------------------------------------------------


                                       5
<PAGE>
- -------------------------------------------------------------------------------------------------------
  9   DIAMOND WHOLLY OWNED FRANCHISES

- -------------------------------------------------------------------------------------------------------
      LEICESTER                 DIAMOND CABLE COMMUNICATIONS PLC
      LOUGBOROUGH
      HINKLEY
      BURTON UPON TRENT
- -------------------------------------------------------------------------------------------------------

      THE REGISTERED OFFICE     40 ARTILLERY LANE, BISHOPGATE, LONDON E1  7LS
      FOR THE ABOVE LISTED
      COMPANY IS:
- -------------------------------------------------------------------------------------------------------

</TABLE>

CLAUSE C4.1, is hereby amended to revise Customer's Purchase Objective from
[Confidential Portion Omitted] lines to [Confidential Portion Omitted]

  C4.1         Supplier's fully discounted net price per Switch line shown in
               the table below, includes for [Confidential Portion Omitted] per
               Switch and for [Confidential Portion Omitted] per switch. The
               relevant price per line for any Order, excluding the incremental
               price for Advanced Software which is detailed in clause C4.1.4,
               shall be determined by applying the prevailing Purchase Objective
               effective on the date of such Order, as defined in Clause C7, to
               the table below.

PRICE PER LINE BASED UPON PURCHASE OBJECTIVE


                                         [CONFIDENTIAL PORTION OMITTED]

                          LINES       LINES      LINES       LINES        LINES


PURCHASE OBJECTIVE
HOST PRICE PER LINE:
SNSE PRICE PER LINE:
RSC PRICE PER LINE:                      [Confidential Portion Omitted]
RLCM PRICE PER LINE:
SRU PRICE PER LINE:




                                       6
<PAGE>
CLAUSE C7.1.1 is hereby amended to show Customer's revised Purchase Objective
following the inclusion of Diamond franchises, now stated as follows:

  C7.1.1       Customer's initial Purchase Objective is detailed below ("Initial
               Purchase Objective") [Confidential Portion Omitted]















                                       7
<PAGE>
SIGNATURES

The parties intending to be legally bound have caused this Amendment to be
executed by their duly authorised representatives.



CUSTOMERS                                      SUPPLIER

TELEWEST COMMUNICATIONS GROUP LIMITED          NORTEL LIMITED


authorised signature         date              authorised signature     date


print or type name of signatory                print or type name of signatory


title                                                     title

For and on behalf of
- --------------------
TeleWest Communications Group Limited
- -------------------------------------
United Artists Communications (Scotland) Venture
- ------------------------------------------------
United Artists Communications (North East) Partnership
- ------------------------------------------------------
Avon Cable Joint Venture
- ------------------------
United Artists Communications (South East) Partnership
- ------------------------------------------------------
London South Cable Partnership
- ------------------------------
United Artists Communications (Cotswolds) Limited
- -------------------------------------------------


CABLE LONDON PLC



authorised signature                date


print or type name of signatory


title





BIRMINGHAM CABLE LIMITED



authorised signature                date


print or type name of signatory


title


                                       8
<PAGE>
WINDSOR TELEVISION LIMITED



authorised signature                date


print or type name of signatory


title




BELL CABLEMEDIA PLC



authorised signature                date


print or type name of signatory


title




TELECENTIAL COMMUNICATIONS PARTNERSHIP



authorised signature                date


print or type name of signatory


title




IVS CABLE HOLDINGS LIMITED



authorised signature                date


print or type name of signatory


title

                                       9
<PAGE>
COMCAST TEESSIDE LIMITED



authorised signature                date


print or type name of signatory

                                           title




CAMBRIDGE CABLE LIMITED



authorised signature                date


print or type name of signatory


title




DIAMOND CABLE COMMUNICATIONS LIMITED



authorised signature                date


print or type name of signatory


title




                                       10
<PAGE>
  "[CONFIDENTIAL PORTION OMITTED]" INDICATES THAT INFORMATION HAS BEEN OMITTED
       AND FILED SEPARATELY WITH THE COMMISSION PURSUANT TO A REQUEST FOR
                             CONFIDENTIAL TREATMENT.


                                 AMENDMENT NO. 9
                       TO THE GENERAL PURCHASING AGREEMENT
                                   NTE-GPA0001

This Amendment No. 9, dated this 17th day of July 1997 shall be deemed effective
as of the 1st day of December 1996, by and between the companies listed under
Exhibit A in the General Purchasing Agreement (GPA), dated 1 March 1993
("Customer"), and Nortel Limited, ("Supplier").

                                    RECITALS

WHEREAS, Customer and Supplier entered into a General Purchasing Agreement dated
the first day of March 1993; and

WHEREAS, Customer and Supplier amended the General Purchasing Agreement by
entering into Amendment No. 1, dated 1 July 1993; and

WHEREAS, Customer and Supplier amended the General Purchasing Agreement by
entering into Amendment No. 2, dated 29 October 1993; and

WHEREAS, Customer and Supplier amended the General Purchasing Agreement by
entering into Amendment No. 3, dated 12 November 1993; and

WHEREAS, Customer and Supplier amended the General Purchasing Agreement by
entering into Amendment No. 4, dated 10 December 1993; and

WHEREAS, Customer and Supplier amended the General Purchasing Agreement by
entering into Amendment No. 5, dated 24 May 1994; and

WHEREAS, Customer and Supplier amended the General Purchasing Agreement by
entering into Amendment No. 6, dated 29 June 1995; and

WHEREAS, Customer and Supplier amended the General Purchasing Agreement by
entering into Amendment No. 7, dated 30 June 1995; and

WHEREAS, Customer and Supplier amended the General Purchasing Agreement by
entering into Amendment No. 8, dated 5 February 1996; and



WHEREAS, Customer and Supplier agree to further amend the GPA pursuant to the
terms and conditions set forth herein.

                                    AGREEMENT

In consideration of the mutual promises and advantages to the parties, the
parties incorporate by reference and agree to the accuracy of the above recitals
and further agree as follows:


<PAGE>
INTRODUCTION, Supplier's legal name and address of registered office is hereby
amended from Nortel Limited to Nortel plc (effective 1 May 1997) and is now
stated as follows:

1        INTRODUCTION

This Agreement, dated 1 March 1993, is made by and between the companies listed
under Exhibit A attached hereto and by this reference incorporated into this
Agreement and identified herein ("Customer"), and NORTEL PLC, HAVING ITS
REGISTERED OFFICE AT MAIDENHEAD OFFICE PARK, WESTACOTT WAY MAIDENHEAD, BERKS SL6
3QH ("Supplier").

In consideration of the promises, mutual covenants and agreements contained
herein, the receipt and sufficiency of which are hereby acknowledged, Customer
and Supplier agree as follows:


CLAUSE 2.4.1, is hereby amended and now stated as follows:

  2.4.1        Written acceptance or performance, in whole or in part, shall
               constitute Supplier's acceptance of the Order(s). Acceptance of
               the Order(s) binds the parties to honour all dates, amounts and
               other requirements of the Order(s). Supplier agrees to accept all
               Orders which comply with the terms and conditions of this
               Agreement. Supplier shall have no obligation to accept an Order
               that contains a delivery interval shorter than that specified by
               Supplier as its standard delivery intervals as defined herein OR
               THAT DOES NOT MEET THE CRITERIA DETAILED IN CLAUSE C31.1

CLAUSE 2.48, is hereby amended as a consequence of Supplier's change of name and
address, now stated as follows:

2.48       NOTICES

Where written notices, demands, or other communications are required under this
Agreement to be made in writing, they shall be deemed duly given when made in
writing and delivered in hand, or upon receipt when properly addressed by
Recorded or Registered Post or other delivery service to the following
addresses:

         CUSTOMERS :


TeleWest Communications Group Ltd.           Bell Cablemedia plc
Attn : Contract Manager                      Attn : Group Director Engineering
Materials Management Department              Floor 3 Colne House
Unit 1, Genesis Business Park                Watford
Woking, Surrey, GU21 5RW                     Hertfordshire WD1 7EL


Telecential Communications Ltd Partnership        IVS Cable Holdings Limited
Attn : Contract Manager                           Attn : Contract Manager
Link 2 Beacontree Plaza, Gillette Way,            284 Weyhill Road
Basingstoke Road,                                 Andover
Reading RG2 0BS                                   Hampshire SP10 3LF

Cambridge Cable Limited.                          Comcast Teeside Limited
Attn: Director of Telecoms Networks               Attn: Company Secretary
Cambridge Science Park                            Wellington Court
Milton Road                                       De Havilland Avenue
Cambridge                                         Preston Farm
CB4 4WA                                           Stockton-on-Tees
                                                  Cleveland  TS18 3TA


                                       2
<PAGE>
Diamond Cable Communications Limited
Attn: Director of Technical  Services
Diamond Plazza
Daleside Road
Nottingham
NG2 3GG

SUPPLIER :

COMMERCIAL MANAGER, CABLE COMMUNICATIONS ACCOUNT GROUP
NORTEL  PLC
MAIDENHEAD OFFICE PARK
WESTACOTT WAY
MAIDENHEAD, BERKS
SL6 3QH

Addresses may be changed by written notices to the parties.

CLAUSE C4.1, is hereby amended to remove reference to the number of extensions
permitted at the price per line and to detail the revised price for advanced
Software now stated as follows:

  C4.1         Supplier's fully discounted net price per Switch line IS shown in
               the table below. includes [CONFIDENTIAL PORTION OMITTED] per
               Switch and for [CONFIDENTIAL PORTION OMITTED] per Switch. The
               relevant price per line for any Order, excluding the incremental
               price for Advanced Software which is detailed in clause C4.1.4
               Shall be determined by applying the prevailing Purchase Objective
               effective on the date of such Order, as defined in Clause C7, to
               the table below.

   PRICE PER LINE BASED UPON PURCHASE OBJECTIVE


                                            [CONFIDENTIAL PORTION OMITTED]

                            LINES        LINES       LINES     LINES       LINES


   PURCHASE OBJECTIVE
   HOST PRICE PER LINE:
   SNSE PRICE PER LINE:
   RSC PRICE PER LINE:                      [Confidential Portion Omitted]
   RLCM PRICE PER LINE:
   SRU PRICE PER LINE:


       C4.1.1       No retrospective price adjustments will be made to previous
                    Purchases upon Consortium achieving the next pricing level.

       C4.1.2       The above stated price per line, except as stated IN CLAUSE
                    C4.1.3 below with regard to SNSE, includes the Product(s) as
                    listed in Appendix 2, entitled "Price Per Line" attached
                    hereto and by this reference incorporated into this
                    Agreement and Base Software as defined in Attachment K issue
                    3 of the Proposal, and Services including but not limited to


                                       3
<PAGE>
                    [CONFIDENTIAL PORTION OMITTED] In the case of Switch
                    remotes, (RSC, RLCM and SRU) the price per line
                    [CONFIDENTIAL PORTION OMITTED] These prices include all
                    customs and import duties, but exclude VAT.

       C4.1.3       [CONFIDENTIAL PORTION OMITTED]

       C4.1.4        Customer shall pay and include within every order for
                     additional Switch line capacity whether on a Host, SNSE,
                     RSC, RLCM, SRU or SRU-S the incremental price per line as
                     detailed in clauses C4.1.4.1 and C4.1.4.2 for Advanced
                     Software as described and defined in Attachment K issue 3.
                     Such incremental price per line shall apply retrospectively
                     to lines ordered prior to this amendment.

                  C4.1.4.1       For the first [CONFIDENTIAL PORTION OMITTED] of
                                 such lines installed by Supplier, and Ordered
                                 by all Customers collectively, under this
                                 Agreement, the incremental price per line for
                                 Advanced Software to be included on Customer's
                                 order shall be [CONFIDENTIAL PORTION OMITTED]

                  C4.1.4.2       For all lines Ordered, under this Agreement, by
                                 Customers collectively beyond the first
                                 [CONFIDENTIAL PORTION OMITTED] lines as
                                 described in clause C4.1.4.1 and up to
                                 [CONFIDENTIAL PORTION OMITTED] lines, the
                                 incremental price per line for Advanced
                                 Software to be included on Customer's order
                                 shall be [CONFIDENTIAL PORTION OMITTED]

                                                                                
C4.1.4.3            Supplier and Customer shall negotiate in good faith a price
                    for all lines Ordered, under this Agreement, by Customers
                    collectively beyond the first [CONFIDENTIAL PORTION OMITTED]
                    lines as described in clauses C4.1.4.1 and C4.1.4.2. FOR ALL
                    LINES ORDERED, UNDER THIS AGREEMENT, BY CUSTOMERS
                    COLLECTIVELY BEYOND THE FIRST [CONFIDENTIAL PORTION OMITTED]
                    LINES AS DESCRIBED IN CLAUSE C4.1.4.2, THE INCREMENTAL PRICE
                    PER LINE FOR ADVANCED SOFTWARE TO BE INCLUDED ON CUSTOMER'S
                    ORDER SHALL BE [CONFIDENTIAL PORTION OMITTED]

                  C4.1.4.4       The Advanced Software RTU fee shall apply to
                                 all Switch and remote lines. No further
                                 discounts or deductions whatsoever will apply
                                 including for internal use (clause C6.4) and
                                 Software Utilisation Discount (clause C31.5).

                  C4.1.4.5       The Advanced Software RTU fee has been
                                 calculated assuming an ultimate Switch size of
                                 [CONFIDENTIAL PORTION OMITTED] lines. Customers
                                 shall endeavour to extend their Switches to
                                 achieve this ultimate Switch size.

CLAUSE C4.2, is hereby amended to remove reference to [CONFIDENTIAL PORTION
OMITTED] now stated as follows:

  C4.2         For any OTHER Products ordered TOGETHER WITH or separately FROM
               for initial Switches OR SWITCH EXTENSIONS that are of a type not
               listed in Appendix 2 or in a quantity greater than that listed
               under Appendix 2, Customer shall [CONFIDENTIAL PORTION OMITTED]
               Unless otherwise agreed, Supplier's Software and Services
               [CONFIDENTIAL PORTION OMITTED]


                                       4
<PAGE>
CLAUSE C4.3, is hereby deleted to remove reference to [CONFIDENTIAL PORTION
OMITTED] from the Agreement:

  C4.3         For the third extension or beyond of each Switch, the additional
               Growth Products ordered under this Agreement shall [CONFIDENTIAL
               PORTION OMITTED] Unless otherwise agreed, Supplier's Software and
               Services [CONFIDENTIAL PORTION OMITTED]



CLAUSE C10, is hereby amended to detail that the BRISC 50 processor is provided
with an initial switch at no additional charge, now restated as follows:

C10        BELL NORTHERN RESEARCH RATIONALISED INSTRUCTION SET COMPUTING 
           PROCESSOR

  C10.1        FOR THOSE SITES WHERE SERIES 40 PROCESSORS HAVE BEEN INSTALLED,
               Supplier shall upgrade the Switches to Bell Northern Research
               Rationalised Instruction Set Computing (BRISC) processors at no
               additional charge where it is found that the recommended maximum
               Busy Hour Call Attempts (BHCA) capacity for the Cable Television
               (CATV) environment as detailed in the Supplier's response to the
               RFP section 3.3.2.8 are not achieved, provided that the failure
               to achieve such recommended maximum BHCA capacity is not
               attributable to the introduction of additional Software features
               or to a traffic volume and/or call mix varying from that detailed
               in the BHCA capacity predictions.

  C10.2        Customer may Order the BRISC 50 processor with the Order for an
               initial Switch at the incremental price of (pound)25,000. A BRISC
               50 PROCESSOR WILL BE PROVIDED AS PART OF AN INITIAL SWITCH AT NO
               INCREMENTAL PRICE.

  C10.3        Customer may Order the BRISC 60 processor with the Order for an
               initial Switch at the incremental price of (POUND)25,000
               (pound)50,000. Payment for (pound)25,000 of this (pound)50,000
               SUCH PAYMENT shall be deferred until such time as Customer
               requires the additional processing capability provided by the
               BRISC 60 over and above that provided by the BRISC 50.

CLAUSE C31, is hereby amended to detail Switch Order criteria now stated as
follows:

C31        ORDER AND CUSTOMER INFORMATION PROCESS FOR A NEW SWITCH

  C31.1        Customer may procure a new Switch by issuing an Order. Such Order
               shall state the number of lines, Acceptance Date and any other
               pertinent information AND SHALL ADHERE TO THE FOLLOWING ORDER
               CRITERIA:

               C31.1.1        GPP LINES SHALL ONLY BE ORDERED IN MULTIPLES OF
                              3,600 WHICH REPRESENTS A FULLY EQUIPPED GPP
                              CABINET .

               C31.1.2        THE MINIMUM ORDER QUANTITY OF GPP LINES FOR A NEW
                              HOST SWITCH IS 21,600 AND FOR A SNSE 7,200 LINES.

               C31.1.3        THE MINIMUM INITIAL HOST SWITCH IMPLEMENTATION
                              SHALL BE 10,800 GPP LINES AND FOR A SNSE SWITCH,
                              3,600 GPP LINES.

               C31.1.4        ANY BALANCE OF LINES ORDERED IN ACCORDANCE WITH
                              CLAUSE C31.1.2 BUT NOT INCLUDED IN THE INITIAL
                              IMPLEMENTATION DETAILED IN CLAUSE C31.1.3 SHALL BE
                              IMPLEMENTED FOR ACCEPTANCE NO LATER THAN TWO YEARS
                              AFTER THE ACCEPTANCE DATE FOR THE INITIAL
                              IMPLEMENTATION OF SUCH SWITCH.

               C31.1.5        THE MINIMUM ORDER QUANTITY FOR A SINGLE
                              IMPLEMENTATION OF GPP LINES FOR AN EXTENSION TO A
                              HOST SWITCH SHALL BE 7,200 LINES AND FOR AN
                              EXTENSION TO AN SNSE SHALL BE 3,600 LINES. EXCEPT


                                       5
<PAGE>
                              THAT WHERE CUSTOMER REQUIRES LESS THAN 7,200 LINES
                              ON A HOST SWITCH TO COMPLETE THE BUILD FOR THAT
                              AREA, CUSTOMER MAY ORDER AN EXTENSION OF 3,600
                              LINES.


                                       6
<PAGE>
EXHIBIT C, APPENDIX II, is hereby deleted in its entirety and replaced with the
following to define in more detail the items included within the price per line
and the engineering assumptions and is now stated as follows:-


EXHIBIT C                  APPENDIX II


This Appendix 2 to Exhibit C of the Agreement details contains the Product(s)
and Software contained in the price per line stated in Clause C4.1, and the
associated ENGINEERING assumptions.

CII.1      PRICE PER LINE

THIS PART 1 OF APPENDIX 2 DETAILS THE PRODUCT, SOFTWARE AND SERVICES INCLUDED
WITHIN THE PRICE PER LINE STATED IN CLAUSE C4.1.

SUPERNODE

The SuperNode (SN) module is provided as part of an initial switch, and
comprised of [CONFIDENTIAL PORTION OMITTED]

MAINTENANCE AND ADMINISTRATION POSITION

The Maintenance and Administration Position (MAP) module is provided as part of
an initial switch, and is comprised of the following standard items:

[CONFIDENTIAL PORTION OMITTED]

No additional MAP equipment is provided as part of an extension.

INPUT / OUTPUT EQUIPMENT

The Input / Output Equipment (IOE) module is provided as part of an initial
switch, and is comprised of [CONFIDENTIAL PORTION OMITTED]

ENHANCED NETWORK

The Enhanced Network (ENET) module is provided as part of an initial switch, and
is comprised of [CONFIDENTIAL PORTION OMITTED]

LINK PERIPHERAL PROCESSOR

The Link Peripheral Processor (LPP) module is provided as part of an initial
switch, and is comprised of [CONFIDENTIAL PORTION OMITTED]

MISCELLANEOUS

The Miscellaneous (CMIS) module is provided as part of an initial switch, and is
comprised of one cabinet with the following standard inclusions:

[CONFIDENTIAL PORTION OMITTED]


                                       7
<PAGE>
POWER DISTRIBUTION CABINETS

Power Distribution Cabinets (PDC) are provided as part of an initial switch and
an extension, depending on the floor plan. The standard is to provide:

[CONFIDENTIAL PORTION OMITTED]

GPP

The GPP module provides the line capacity required for an initial switch and an
extension, and is comprised of [CONFIDENTIAL PORTION OMITTED]








                                       8
<PAGE>
DIGITAL TRUNK CONTROLLER

The Digital Trunk Controller (DTC) module is provided as part of an initial
switch and an extension, and is comprised of [CONFIDENTIAL PORTION OMITTED]

CABINETISED INTEGRATED SERVICES MODULE

The Cabinetised Integrated Services Module (CISM) is provided as part of an
initial switch and an extension, and can interface up to [CONFIDENTIAL PORTION
OMITTED]

DISTRIBUTION FRAMES

Distribution Frames (DF) are provided for an initial switch and an extension as
follows:

[CONFIDENTIAL PORTION OMITTED]

BASE SOFTWARE

A one-time Software Licence covering the Base Software, as defined in Issue 3 of
Attachment K of the Northern Telecom RFP response included in Amendment 7 to the
GPA, is provided for an initial switch and an extension.

OFFICE ALARM SYSTEMS

Audible and visual Office Alarm Systems are provided as part of an initial
switch as follows:

[CONFIDENTIAL PORTION OMITTED]

SERVICES

The Services provided as part of an initial switch and an extension are as
follows:

[CONFIDENTIAL PORTION OMITTED]

SPARES

Critical Spares are provided as part of an initial switch and an extension:

[CONFIDENTIAL PORTION OMITTED]

TRAINING

Training is provided as part of an initial switch and is comprised of:

[CONFIDENTIAL PORTION OMITTED]

DOCUMENTATION

Documentation is provided for an initial switch and is comprised of:

[CONFIDENTIAL PORTION OMITTED]


                                       9
<PAGE>
WARRANTY

Warranty is provided as part of an initial switch and an extension as follows:


[CONFIDENTIAL PORTION OMITTED]

GENERAL

Prices include Product as defined herein, Software (as defined in Supplier's
proposal, Attachment K), factory testing, UK delivery, engineering, installation
and commissioning (including C7) and project management. In the case of DMS
remotes, (RSC, RLCM and SRU), the price additionally includes host Product
(i.e., appropriate PLGC capacity), based on the stated RFP traffic figures and
line mix. These prices include all customs and import duties, but exclude VAT.

Prices exclude AC Power, DC Power (but include DC Power Distribution Cabinets on
the DMS line-ups), DC cabling from the DC Power system to the DMS Power
Distribution Cabinets, flooring, air-conditioning, fire-prevention, lighting,
partitioning and any building modifications or preparations.






                                       10
<PAGE>
                         [CONFIDENTIAL PORTION OMITTED]




                                       11
<PAGE>
                         [CONFIDENTIAL PORTION OMITTED]





                                       12
<PAGE>
                         [CONFIDENTIAL PORTION OMITTED]



                                       13
<PAGE>



                         [CONFIDENTIAL PORTION OMITTED]



                                       14
<PAGE>



                         [CONFIDENTIAL PORTION OMITTED]




                                       15
<PAGE>



                         [CONFIDENTIAL PORTION OMITTED]


                                       16
<PAGE>



                         [CONFIDENTIAL PORTION OMITTED]



                                       17
<PAGE>



                         [CONFIDENTIAL PORTION OMITTED]




                                       18
<PAGE>



                         [CONFIDENTIAL PORTION OMITTED]




                                       19
<PAGE>



                         [CONFIDENTIAL PORTION OMITTED]




                                       20
<PAGE>
EXHIBIT C, APPENDIX III, is hereby deleted in its entirety and replaced with the
following to define in more detail the fully discounted prices for Purchases
which are incremental or additional to the items included within the price per
line and is now stated as follows:-


EXHIBIT C                  APPENDIX III


This Appendix III to Exhibit C of the Agreement details the fully discounted
prices for Purchases which are incremental or additional to the items included
within the price per line. This price list may be updated or amended by Supplier
by written notice in accordance with clause C2.48 provided that any variations
to prices are not inconsistent with the provisions of clause 2.9 (price
protection).


                   EXHIBIT C, APPENDIX III PRICE LIST - INDEX
<TABLE>
<CAPTION>
- ------------------------------------------------------------------------------------------------------
       REFERENCE NO.                                       DESCRIPTION
- ------------------------------------------------------------------------------------------------------
<S>                       <C>                    
                            DPNSS ports
                            --------------------------------------------------------------------------
                            DASS II Model 1200
                            --------------------------------------------------------------------------
                            DASS II Model 800
                            --------------------------------------------------------------------------
                            DASS II Network Interface Management System (NIMS)
                            --------------------------------------------------------------------------
                            Xyplex based NSC Interface Equipment
                            --------------------------------------------------------------------------
                            LIU7 links and LPP Cabinet
                            --------------------------------------------------------------------------
                            EDRAM
                            --------------------------------------------------------------------------
                            IOC Module and device cards
                            --------------------------------------------------------------------------
                            MAP terminal and printer
                            --------------------------------------------------------------------------
                            P-Phone Screen Based Operator Console
                            --------------------------------------------------------------------------
                            MDF Equipment
                            --------------------------------------------------------------------------
       [Confidential        Helmsman CD ROM Documentation
                            --------------------------------------------------------------------------
          Portion           Paper copies of Documentation
                            --------------------------------------------------------------------------
         Omitted]           Attendant Console
                            --------------------------------------------------------------------------
                            P-Phones, Headsets and Residential Telephones sets
                            --------------------------------------------------------------------------
                            Music On Hold Interface
                            --------------------------------------------------------------------------
                            Centrex - including RSC-s/SRU/LCME/Line cards
                            --------------------------------------------------------------------------
                            CMIS cabinet
                            --------------------------------------------------------------------------
                            CODES
                            --------------------------------------------------------------------------
                            PDTC or DTCOi Ports
                            --------------------------------------------------------------------------
                            Technical Support (hourly Labour Rates)
                            --------------------------------------------------------------------------
                            Filters
                            --------------------------------------------------------------------------
                            Cabinetised Integrated Services Module (CISM) and associated cards
                            --------------------------------------------------------------------------
                            Training
                            --------------------------------------------------------------------------
                            Wallboard
                            --------------------------------------------------------------------------
                            Stratum Clock Interface
- ------------------------------------------------------------------------------------------------------
</TABLE>


                                       21
<PAGE>
QUOTATION FOR DPNSS PORTS

REFERENCE: CATV/GPA/801
ISSUE: 1
PAGE: 1/1

                         [CONFIDENTIAL PORTION OMITTED]





                                       22
<PAGE>
QUOTATION FOR DASS II MODEL 1200

REFERENCE: CATV/GPA/802
ISSUE: 1
PAGE: 1/3


                         [CONFIDENTIAL PORTION OMITTED]




                                       23
<PAGE>
QUOTATION FOR DASS II MODEL 1200

REFERENCE: CATV/GPA/802
ISSUE: 1
PAGE: 2/3



                         [CONFIDENTIAL PORTION OMITTED]





                                       24
<PAGE>



                        Quotation for DASS II Model 1200



                         [CONFIDENTIAL PORTION OMITTED]





                                       25
<PAGE>


                         [CONFIDENTIAL PORTION OMITTED]





                                       26
<PAGE>


QUOTATION FOR DASS II MODEL 800

REFERENCE: CATV/GPA/803
ISSUE: 1
PAGE: 1/3


                         [CONFIDENTIAL PORTION OMITTED]





                                       27

<PAGE>


QUOTATION FOR DASS II MODEL 800

REFERENCE: CATV/GPA/803
ISSUE: 1
PAGE: 2/3

                         [CONFIDENTIAL PORTION OMITTED]





                                       28
<PAGE>


                         [CONFIDENTIAL PORTION OMITTED]







                                       29
<PAGE>


QUOTATION FOR DASS II MODEL 800

                         [CONFIDENTIAL PORTION OMITTED]





                                       30
<PAGE>


QUOTATION FOR DASS II NETWORK INTERFACE MANAGEMENT SYSTEM (NIMS)

REFERENCE: CATV/GPA/804
ISSUE: 1
PAGE: 1/3

                         [CONFIDENTIAL PORTION OMITTED]



                                       31
<PAGE>


QUOTATION FOR DASS II NETWORK INTERFACE MANAGEMENT SYSTEM (NIMS)

                         [CONFIDENTIAL PORTION OMITTED]





                                       32
<PAGE>


              QUOTATION FOR DASS II NETWORK INTERFACE MANAGEMENT SYSTEM (NIMS)

                         [CONFIDENTIAL PORTION OMITTED]








                                       33
<PAGE>


                         [CONFIDENTIAL PORTION OMITTED]



                                       34
<PAGE>


                     QUOTATION FOR XYPLEX BASED NSC INTERFACE EQUIPMENT

                         [CONFIDENTIAL PORTION OMITTED]


                                       35
<PAGE>


QUOTATION FOR EDRAM

                         [CONFIDENTIAL PORTION OMITTED]




                                       36
<PAGE>


                    QUOTATION FOR IOC MODULE AND DEVICE CARDS

REFERENCE: CATV/GPA/808
ISSUE: 1
PAGE: 1/1

                         [CONFIDENTIAL PORTION OMITTED]



                                       37
<PAGE>


                    QUOTATION FOR A MAP TERMINAL AND PRINTER

REFERENCE: CATV/GPA/809
ISSUE: 1
PAGE: 1/1

                         [CONFIDENTIAL PORTION OMITTED]



                                       38
<PAGE>


                    QUOTATION FOR A P-PHONE SCREEN BASED OPERATOR CONSOLE


REFERENCE: CATV/GPA/810
ISSUE: 1
PAGE: 1/2

                         [CONFIDENTIAL PORTION OMITTED]




                                       39
<PAGE>


                    QUOTATION FOR A P-PHONE SCREEN BASED OPERATOR CONSOLE


REFERENCE: CATV/GPA/810
ISSUE: 1
PAGE: 2/2

                         [CONFIDENTIAL PORTION OMITTED]





                                       40
<PAGE>


                                QUOTATION FOR MDF EQUIPMENT

REFERENCE: CATV/GPA/811
ISSUE: 1
PAGE: 1/1

                         [CONFIDENTIAL PORTION OMITTED]







                                       41
<PAGE>


                   QUOTATION FOR HELMSMAN CD ROM DOCUMENTATION

REFERENCE: CATV/GPA/812
ISSUE: 1
PAGE: 1/1

                         [CONFIDENTIAL PORTION OMITTED]





                                       42
<PAGE>


                   QUOTATION FOR PAPER COPIES OF DOCUMENTATION

REFERENCE: CATV/GPA/815
ISSUE: 1
PAGE 1/1

                         [CONFIDENTIAL PORTION OMITTED]





                                       43
<PAGE>


                         QUOTATION FOR ATTENDANT CONSOLE

REFERENCE: CATV/GPA/814
ISSUE: 1
PAGE: 1/1

                         [CONFIDENTIAL PORTION OMITTED]






                                       44
<PAGE>


              QUOTATION FOR P-PHONES, HEADSETS AND RESIDENTIAL TELEPHONES SETS

REFERENCE: CATV/GPA/815
ISSUE: 1
PAGE: 1/1
                         [CONFIDENTIAL PORTION OMITTED]






                                       45
<PAGE>


                      QUOTATION FOR MUSIC ON HOLD INTERFACE

REFERENCE: CATV/GPA/816
ISSUE: 1
PAGE: 1/1

                         [CONFIDENTIAL PORTION OMITTED]





                                       46
<PAGE>


                                   QUOTATION FOR CENTREX
                            INCLUDING RSC-S/SRU/LCME/LINE CARDS

REFERENCE: CATV/GPA/817
ISSUE: 1
PAGE: 1/3

                         [CONFIDENTIAL PORTION OMITTED]




                                       47
<PAGE>


                                   QUOTATION FOR CENTREX
                            INCLUDING RSC-S/SRU/LCME/LINE CARDS

REFERENCE: CATV/GPA/817
ISSUE: 1
PAGE: 2/3

                         [CONFIDENTIAL PORTION OMITTED]




                                       48
<PAGE>


                         [CONFIDENTIAL PORTION OMITTED]




                                       49
<PAGE>


                                   QUOTATION FOR CENTREX
                            INCLUDING RSC-S/SRU/LCME/LINE CARDS


                         [CONFIDENTIAL PORTION OMITTED]




                                       50
<PAGE>


                           QUOTATION FOR CMIS CABINET

                         [CONFIDENTIAL PORTION OMITTED]




                                       51
<PAGE>


                               QUOTATION FOR CODES

REFERENCE: CATV/GPA/819
ISSUE: 1
PAGE: 1/1

                         [CONFIDENTIAL PORTION OMITTED]




                                       52
<PAGE>


                        QUOTATION FOR PDTC OR DTCOI PORTS

REFERENCE: CATV/GPA/820
ISSUE: 1
PAGE : 1/1

                         [CONFIDENTIAL PORTION OMITTED]





                                       53
<PAGE>


                              QUOTATION FOR TECHNICAL SUPPORT

REFERENCE: CATV/GPA/821
ISSUE: 1
PAGE: 1/1

                         [CONFIDENTIAL PORTION OMITTED]





                                       54
<PAGE>


                              QUOTATION FOR FILTERS

REFERENCE: CATV/GPA/822
ISSUE: 1
PAGE: 1/1

                         [CONFIDENTIAL PORTION OMITTED]





                                       55
<PAGE>


                     QUOTATION FOR CISM AND ASSOCIATED CARDS

REFERENCE: CATV/GPA/823
ISSUE: 1
PAGE: 1/1

                         [CONFIDENTIAL PORTION OMITTED]





                                       56
<PAGE>


QUOTATION FOR TRAINING

REFERENCE: CATV/GPA/824
ISSUE: 1
PAGE: 1/1

                         [CONFIDENTIAL PORTION OMITTED]




                                       57
<PAGE>


                         [CONFIDENTIAL PORTION OMITTED]




                                       58
<PAGE>


QUOTATION FOR WALLBOARD

REFERENCE: CATV/GPA/825
ISSUE: 1
PAGE: 1/1

                         [CONFIDENTIAL PORTION OMITTED]




                                       59
<PAGE>


QUOTATION FOR STRATUM CLOCK INTERFACE

REFERENCE: CATV/GPA/826
ISSUE: 1
PAGE: 1/1

INTRODUCTION


                         [CONFIDENTIAL PORTION OMITTED]



                                       60
<PAGE>
                                   SIGNATURES

The parties intending to be legally bound have caused this Amendment to be
executed by their duly authorised representatives.



CUSTOMERS                                    SUPPLIER

TELEWEST COMMUNICATIONS GROUP LIMITED        NORTEL PLC


authorised signature                date     authorised signature          date


print or type name of signatory              print or type name of signatory


title                                        title



CABLE LONDON PLC



authorised signature                date


print or type name of signatory


title





BIRMINGHAM CABLE LIMITED



authorised signature                date


print or type name of signatory


title


                                       61
<PAGE>
WINDSOR TELEVISION LIMITED



authorised signature                date


print or type name of signatory


title




BELL CABLEMEDIA PLC



authorised signature                date


print or type name of signatory


title




TELECENTIAL COMMUNICATIONS PARTNERSHIP



authorised signature                date


print or type name of signatory


title



IVS CABLE HOLDINGS LIMITED



authorised signature                date


print or type name of signatory


title


                                       62
<PAGE>
COMCAST TEESSIDE LIMITED



authorised signature                date


print or type name of signatory

                                           title




CAMBRIDGE CABLE LIMITED



authorised signature                date


print or type name of signatory


title




DIAMOND CABLE COMMUNICATIONS PLC



authorised signature                date


print or type name of signatory


title





                                       63



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