"[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








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                                TABLE OF CONTENTS
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<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

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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

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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


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   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

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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

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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
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 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]


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<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]


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<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)


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<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]

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<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]


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<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.


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<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.

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<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.







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