HERMES EUROPE RAILTEL B V
S-4/A, 1997-10-27
TELEPHONE COMMUNICATIONS (NO RADIOTELEPHONE)
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<PAGE>   1
 
   
    AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON OCTOBER 27, 1997
    
 
   
                                                      REGISTRATION NO. 333-37719
    
================================================================================
SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
                            ------------------------
   
                                AMENDMENT NO. 1
    
   
                                       TO
    
                                    FORM S-4
                             REGISTRATION STATEMENT
                                   UNDER THE
                             SECURITIES ACT OF 1933
                            ------------------------
 
                           HERMES EUROPE RAILTEL B.V.
             (Exact name of registrant as specified in its charter)
 
<TABLE>
<S>                            <C>                            <C>
          NETHERLANDS                       4813                           NONE
(State or other jurisdiction of  (Primary Standard Industrial        (I.R.S. Employer
incorporation or organization)   Classification Code Number)      Identification Numbers)
</TABLE>
 
                              TERHULPSESTEENWEG 6A
                            1560 HOEILAART, BELGIUM
                                 (322) 658-5200
    (Address, including ZIP code, and telephone number, including area code,
                 of registrant's principal executive officers)
                             CT CORPORATION SYSTEM
                                 1633 BROADWAY
                               NEW YORK, NY 10019
                                 (212) 664-1666
              (Name, address, including ZIP, and telephone number,
                   including area code, of agent for service)
                            ------------------------
                                    Copy to:
                          JOHN D. MORRISON, JR., ESQ.
                              SHEARMAN & STERLING
                              599 LEXINGTON AVENUE
                            NEW YORK, NEW YORK 10022
                                 (212) 848-4000
          APPROXIMATE DATE OF COMMENCEMENT OF PROPOSED EXCHANGE OFFER:
  As soon as practicable after this Registration Statement becomes effective.
 
     If the securities being registered on this Form are to be offered in
connection with the formation of a holding company and there is compliance with
General Instruction G, check the following box.  [ ]
                        CALCULATION OF REGISTRATION FEE
 
<TABLE>
<CAPTION>
=================================================================================================
                                                    PROPOSED
                                                    MAXIMUM         PROPOSED        AMOUNT OF
     TITLE OF EACH CLASS OF       AMOUNT TO BE   OFFERING PRICE MAXIMUM AGGREGATE   REGISTRATION
  SECURITIES TO BE REGISTERED      REGISTERED       PER NOTE     OFFERING PRICE       FEE(1)
- -------------------------------------------------------------------------------------------------
<S>                             <C>             <C>             <C>              <C>
11 1/2% Senior Exchange Notes
  Due 2007......................   $265,000,000      $1,000       $265,000,000      $80,303.03
=================================================================================================
</TABLE>
 
(1) The registration fee was calculated, pursuant to Rule 457(f), as
one-thirty-third of one percent of $265,000,000.
 
     THE REGISTRANT HEREBY AMENDS THIS REGISTRATION STATEMENT ON SUCH DATE OR
DATES AS MAY BE NECESSARY TO DELAY ITS EFFECTIVE DATE UNTIL THE REGISTRANT SHALL
FILE A FURTHER AMENDMENT WHICH SPECIFICALLY STATES THAT THIS REGISTRATION
STATEMENT SHALL THEREAFTER BECOME EFFECTIVE IN ACCORDANCE WITH SECTION 8(a) OF
THE SECURITIES ACT OF 1933 OR UNTIL THE REGISTRATION STATEMENT SHALL BECOME
EFFECTIVE ON SUCH DATE AS THE COMMISSION, ACTING PURSUANT TO SAID SECTION 8(a),
MAY DETERMINE.
 
================================================================================
<PAGE>   2
 
                                    PART II
 
                   INFORMATION NOT REQUIRED IN THE PROSPECTUS
 
ITEM 20.  INDEMNIFICATION OF DIRECTORS AND OFFICERS.
 
     Dutch Company Law ("Netherlands Law") permits indemnification of directors,
employees and agents of corporations under certain conditions and subject to
certain limitations.
 
ITEM 21.  EXHIBITS AND FINANCIAL STATEMENT SCHEDULES.
 
   
<TABLE>
    <S>        <C>
      (A)      EXHIBITS.
 
     3.1*  --  Deed of Incorporation and Articles of Association, as amended to date
     4.1*  --  Form of Outstanding Note (contained in Indenture filed as Exhibit 4.3)
     4.2*  --  Form of Exchange Note (contained in Indenture filed as Exhibit 4.3)
     4.3*  --  Indenture, dated August 19, 1997, among the Company, Global TeleSystems Group,
               Inc. and The Bank of New York, as Trustee
     4.4*  --  Registration Rights Agreement, dated August 19, 1997, between the Company and
               Donaldson, Lufkin & Jenrette Securities Corporation, UBS Securities LLC and
               Lehman Brothers Inc.
     4.5*  --  Escrow Agreement, dated August 19, 1997, among the Company and The Bank of New
               York, as Trustee and as Escrow Agent
     5.1** --  Opinion of Shearman & Sterling regarding the legality of the securities being
               registered
     5.2** --  Opinion of Loeff Claeys Verbeke
     8.1** --  Opinion of Shearman & Sterling regarding tax matters
    10.1** --  Shareholders Agreement, dated as of July   , 1997, among the Company,
               GTS-Hermes Inc., HIT Rail B.V., SNCB/NMBS and AB Swed Carrier
    10.2*  --  Employment Agreement, dated as of January 3, 1995, between SFMT, Inc. and Jan
               Loeber
    10.3*  --  Employment Agreement, dated as of January 3, 1995, between SFMT, Inc. and
               Gerard Caccappolo
    10.4*  --  Employment Agreement, dated as of January 1, 1996, between GTS Group, Inc. and
               Bruce Rudy
    10.5*  --  Employment Agreement between the Company and Peter Magnus
    10.6*  --  Employment Agreement, dated as of September 26, 1995, between the Company and
               J.A. Shearing
    10.7*  --  License, dated December 18, 1996, granted by the Secretary of State for Trade
               and Industry relating to the United Kingdom
    10.8** --  Registration, dated July 26, 1996, granted by IBPT relating to Belgium
    10.9** --  Authorization Letter, dated August 1, 1996, granted by Hoofdirectie
               Telecommunicate & Post relating to the Netherlands
    10.10**--  License, dated May 28, 1997, granted by BMPT relating to Germany
    10.11+ --  Agreement, dated April 1, 1997, between Eastern Group Telecoms Limited and the
               Company
    10.12+ --  Agreement, dated January 16, 1997, between SNCB/NMBS and the Company
    10.13+ --  Agreement, dated February 3, 1997, between SANEF and the Company
    12.1*  --  Statements re computation of deficiency of earnings to fixed charges
    21.1*  --  List of Subsidiaries
    23.1*  --  Consent of Ernst & Young LLP
    23.2** --  Consent of Shearman & Sterling (included in its opinion filed as Exhibit 5.1)
    24.1*  --  Powers of Attorney (included on the signature pages of this Registration
               Statement)
    25.1*  --  Statement of Eligibility of The Bank of New York on Form T-1
    27.1*  --  Financial Data Schedule for 1996
    27.2*  --  Financial Data Schedule for Second Quarter 1997
    99.1** --  Form of Letter of Transmittal
    99.2** --  Form of Notice of Guaranteed Delivery
</TABLE>
    
 
- ---------------
   
 * Previously filed.
    
   
** To be filed by amendment.
    
   
 + Confidential material has been redacted and filed separately with the
   Securities and Exchange Commission.
    
 
                                      II-1
<PAGE>   3
 
      (B)  FINANCIAL STATEMENT SCHEDULES.
 
     (1) Financial Statements
 
     The financial statements filed as part of this Registration Statement are
listed in the Index to Financial Statements on page F-1.
 
     (2) Schedules
 
     The financial statement schedules of the Company have been omitted because
the information required to be set forth therein is not applicable or is shown
in the Financial Statements or Notes thereto.
 
ITEM 22.  UNDERTAKINGS.
 
     The undersigned registrant hereby undertakes as follows: that prior to any
public reoffering of the securities registered hereunder through use of a
prospectus which is a part of this registration statement, by any person or
party who is deemed to be an underwriter within the meaning of Rule 145(c), the
issuer undertakes that such reoffering prospectus will contain the information
called for by the applicable registration form with respect to reofferings by
persons who may be deemed underwriters, in addition to the information called
for by the other Items of the applicable form.
 
     The undersigned registrant hereby undertakes that every prospectus (i) that
is filed pursuant to the immediately preceding paragraph, or (ii) that purports
to meet the requirements of section 10(a)(3) of the Securities Act and is used
in connection with an offering of securities subject to Rule 415, will be filed
as a part of an amendment to the registration statement and will not be used
until such amendment is effective, and that, for purposes of determining any
liability under the Securities Act, each such post-effective amendment shall be
deemed to be a new registration statement relating to the securities offered
therein, and the offering of such securities at that time shall be deemed to be
the initial bona fide offering thereof.
 
     The undersigned registrant hereby undertakes: (i) to respond to requests
for information that is incorporated by reference into the prospectus pursuant
to Items 4, 10(b), 11, or 13 of this Form, within one business day of receipt of
such request, and to send the incorporated documents by first class mail or
other equally prompt means; and (ii) to arrange or provide for a facility in the
U.S. for the purpose of responding to such requests. The undertaking in
subparagraph (i) above includes information contained in documents filed
subsequent to the effective date of the registration statement through the date
of responding to the request.
 
     The undersigned registrant hereby undertakes to supply by means of a
post-effective amendment all information concerning a transaction and the
company being acquired involved therein, that was not the subject of and
included in the registration statement when it became effective.
 
     Insofar as indemnification for liabilities arising under the Securities Act
of 1933 may be permitted to directors, officers and controlling persons of the
Registrant pursuant to the provisions described under Item 20 "Indemnification
of Directors and Officers," above, or otherwise, the Registrant has been advised
that in the opinion of the Securities and Exchange Commission such
indemnification is against public policy as expressed in the Act and is,
therefore, unenforceable. In the event that a claim for indemnification against
such liabilities (other than the paying by the Registrant of expenses incurred
or paid by a director, officer or controlling person of the Registrant in the
successful defense of any action, suit or proceeding) is asserted by such
director, officer or controlling person in connection with the securities being
registered, the Registrant will, unless in the opinion of its counsel the matter
has been settled by controlling precedent, submit to a court of appropriate
jurisdiction the question whether such indemnification is against public policy
as expressed in the Act and will be governed by the final adjudication of such
issue.
 
                                      II-2
<PAGE>   4
 
                                   SIGNATURES
 
   
     Pursuant to the requirements of the Securities Act, Hermes Europe Railtel
B.V. has duly caused this Amendment No. 1 to Registration Statement to be signed
on its behalf by the undersigned, thereunto duly authorized, in Hoeilaart,
Belgium, on October 24, 1997.
    
 
                                          HERMES EUROPE RAILTEL B.V.
 
                                          By: /s/      Jan Loeber
                                            ------------------------------------
                                                         JAN LOEBER
                                                     Managing Director
 
   
     Pursuant to the requirements of the Securities Act, this Amendment No. 1 to
Registration Statement has been signed by the following persons in the
capacities indicated on October 24, 1997.
    
 
<TABLE>
<CAPTION>
                Signature                                          TITLE
- ------------------------------------------    -----------------------------------------------
<C>                                           <S>
              /s/ Jan Loeber                  Managing Director (Principal Executive Officer)
- ------------------------------------------
               (Jan Loeber)
 
                    *                         Corporate Financial Director -- Chief Financial
- ------------------------------------------      Officer (Principal Financial and Accounting
              (Peter Magnus)                    Officer)
 
                    *                         Member of Board of Supervisory Directors
- ------------------------------------------
            (Gerald W. Thames)
 
                    *                         Member of Board of Supervisory Directors
- ------------------------------------------
          (Bernard J. McFadden)
 
                    *                         Member of Board of Supervisory Directors
- ------------------------------------------
          (Lars Stig M. Larsson)
 
                    *                         Member of Board of Supervisory Directors
- ------------------------------------------
             (Svend Laursen)
 
              /s/ Jan Loeber                  Member of Board of Managing Directors
- ------------------------------------------
             GTS-Hermes, Inc.
              By Jan Loeber,
 Senior Vice President and Representative
</TABLE>
 
- ---------------
   
* By power of attorney.
    
 
                                      II-3
<PAGE>   5
 
   
                                 EXHIBIT INDEX
    
 
   
<TABLE>
<CAPTION>
                                                                                     SEQUENTIALLY
     EXHIBIT                                                                           NUMBERED
      NUMBER                              DESCRIPTION                                    PAGE
    ---------- ------------------------------------------------------------------    ------------
    <S>        <C>                                                                   <C>
     3.1*  --  Deed of Incorporation and Articles of Association, as amended to
               date
     4.1*  --  Form of Outstanding Note (contained in Indenture filed as Exhibit
               4.3)
     4.2*  --  Form of Exchange Note (contained in Indenture filed as Exhibit
               4.3)
     4.3*  --  Indenture, dated August 19, 1997, among the Company, Global
               TeleSystems Group, Inc. and The Bank of New York, as Trustee
     4.4*  --  Registration Rights Agreement, dated August 19, 1997, between the
               Company and Donaldson, Lufkin & Jenrette Securities Corporation,
               UBS Securities LLC and Lehman Brothers Inc.
     4.5*  --  Escrow Agreement, dated August 19, 1997, among the Company and The
               Bank of New York, as Trustee and as Escrow Agent
     5.1** --  Opinion of Shearman & Sterling regarding the legality of the
               securities being registered
     5.2** --  Opinion of Loeff Claeys Verbeke
     8.1** --  Opinion of Shearman & Sterling regarding tax matters
    10.1** --  Shareholders Agreement, dated as of July   , 1997, among the
               Company, GTS-Hermes Inc., HIT Rail B.V., SNCB/NMBS and AB Swed
               Carrier
    10.2*  --  Employment Agreement, dated as of January 3, 1995, between SFMT,
               Inc. and Jan Loeber
    10.3*  --  Employment Agreement, dated as of January 3, 1995, between SFMT,
               Inc. and Gerard Caccappolo
    10.4*  --  Employment Agreement, dated as of January 1, 1996, between GTS
               Group, Inc. and Bruce Rudy
    10.5*  --  Employment Agreement between the Company and Peter Magnus
    10.6*  --  Employment Agreement, dated as of September 26, 1995, between the
               Company and J.A. Shearing
    10.7*  --  License, dated December 18, 1996, granted by the Secretary of
               State for Trade and Industry relating to the United Kingdom
    10.8** --  Registration, dated July 26, 1996, granted by IBPT relating to
               Belgium
    10.9** --  Authorization Letter, dated August 1, 1996, granted by
               Hoofdirectie Telecommunicate & Post relating to the Netherlands
    10.10**--  License, dated May 28, 1997, granted by BMPT relating to Germany
    10.11+ --  Agreement, dated April 1, 1997, between Eastern Group Telecoms
               Limited and the Company
    10.12+ --  Agreement, dated January 16, 1997, between SNCB/NMBS and the
               Company
    10.13+ --  Agreement, dated February 3, 1997, between SANEF and the Company
    12.1*  --  Statements re computation of deficiency of earnings to fixed
               charges
    21.1*  --  List of Subsidiaries
    23.1*  --  Consent of Ernst & Young LLP
    23.2** --  Consent of Shearman & Sterling (included in its opinion filed as
               Exhibit 5.1)
    24.1*  --  Powers of Attorney (included on the signature pages of this
               Registration Statement)
    25.1*  --  Statement of Eligibility of The Bank of New York on Form T-1
    27.1*  --  Financial Data Schedule for 1996
    27.2*  --  Financial Data Schedule for Second Quarter 1997
    99.1** --  Form of Letter of Transmittal
    99.2** --  Form of Notice of Guaranteed Delivery
</TABLE>
    
 
- ---------------
   
 * Previously filed.
    
   
** To be filed by amendment.
    
   
 + Confidential material has been redacted and filed separately with the
   Securities and Exchange Commission.
    

<PAGE>   1

                             CONFIDENTIAL TREATMENT

                                                                   Exhibit 10.11

Note: Portions of this Exhibit have been omitted pursuant to a request for
confidential treatment filed with the SEC under Rule 406. The omitted
confidential material has been filed separately with the SEC. The location of
the omitted confidential information is indicated herein by a legend stating,
"MATERIAL OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR CONFIDENTIAL
TREATMENT."

                              DATED 1st April 1997


                       EASTERN GROUP TELECOMS LIMITED (1)

                                     - and -

                         HERMES EUROPE RAILTEL B.V. (2)


                           NETWORK SERVICES AGREEMENT

                               Hewitson Becke+Shaw
                                   Solicitors
                                    CAMBRIDGE
<PAGE>   2

AGREEMENT dated the 1st day of April 1997

Made BETWEEN:

(1)   EASTERN GROUP TELECOMS LIMITED (Registered No. 2937788) whose registered
      office is Wherstead Park Wherstead Ipswich, Suffolk IP9 2AQ ("EGT"); and

(2)   HERMES EUROPE RAILTEL B.V. a company incorporated under the laws of the
      Netherlands whose registered office is Drentestraat 20, 1083 HK,
      Amsterdam, the Netherlands ("the User")

together "the Parties"

BACKGROUND

(A)   EGT operates a telecommunications network ("the Network") under its Public
      Telecommunications Operator Licence dated 24 July 1996.

(B)   The User wishes to acquire the right to use optical fibres from EGT as set
      out in Schedule 1 on the Network from Aldeburgh to London and from Margate
      to London.

OPERATIVE PROVISIONS

The Services will be provided in accordance with the attached Schedules and
their associated Appendices which subject to Clause 11.7 of Schedule 2 comprise
the entire agreement between the parties.

      Schedule 1  Service Definition
                  Appendix A  Technical Definition
                  Appendix B  Implementation Plan
      Schedule 2  Standard Terms and Conditions
      Schedule 3  Performance Specifications
      Schedule 4  Maintenance and Support
                  Appendix A  Support and Maintenance Operating Procedures


                                      -1-
<PAGE>   3

                                    Contents

BACKGROUND...................................................................1
OPERATIVE PROVISIONS.........................................................1
SCHEDULE 1 SERVICE DEFINITION................................................3
Appendix A Technical Definition.............................................10
Appendix B Implementation Plan..............................................23
SCHEDULE 2 STANDARD TERMS AND CONDITIONS....................................25
1.   Interpretation.........................................................25
2.   Provision Of The Service...............................................30
3.   Covenants By EGT.......................................................30
4.   Covenants By The User..................................................31
5.   Maintenance............................................................33
6.   Payments...............................................................34
7.   Duration And Termination...............................................35
8.   Warranties And Liability...............................................37
9.   Confidentiality And Intellectual Property..............................38
10.  Expert Determination...................................................39
11.  Insurance..............................................................40
12.  General................................................................40
SCHEDULE 3 PERFORMANCE SPECIFICATIONS.......................................43
SCHEDULE 4 MAINTENANCE AND SUPPORT..........................................44
1.   Introduction...........................................................44
2.   Interpretation.........................................................44
3.   Duties Of The User.....................................................45
4.   Duties Of EGT..........................................................47
5.   Corrective Maintenance.................................................48
6.   Planned Work...........................................................50
7.   Service Acceptance Tests...............................................51
8.   Control, Implementation And Execution Of The Services..................51
9.   Accommodation Maintenance..............................................51
10.  Priority of Restoration................................................52
11.  User's Cable Maintenance...............................................52
12.  Liability..............................................................53
Appendix 1 to Schedule 4 Support and Maintenance
 Operating Procedures.......................................................54
<PAGE>   4

EXECUTED AS AN AGREEMENT on the day first above written.

SIGNED by                           )
duly authorised for and on          )
behalf of EASTERN GROUP             )     /s/ [ILLEGIBLE]
TELECOMS LIMITED in the             )
presence of:-                       )


SIGNED by                           )
duly authorised for and on          )     /s/ [ILLEGIBLE]
behalf of HERMES EUROPE             )
RAILTEL B.V. in the presence of:-   )


                                      -2-
<PAGE>   5

                             CONFIDENTIAL TREATMENT

SCHEDULE 1 - SERVICE DEFINITION

This Schedule forms part of the Network Services Agreement and is subject to the
Interpretations and Provisions therein.

SERVICE PARAMETERS

1     The Services                  EGT will provide the User with the exclusive
                                    right to use two pairs of non-specific
                                    optical fibres ("the Fibres") in EGT's
                                    Network in accordance with the Technical
                                    Definition attached at Appendix A to
                                    Schedule 1 and Performance Specifications
                                    attached at Schedule 3 on each of the Routes
                                    specified in Clauses 1.1 and 1.2 below. EGT
                                    will have the right to designate which
                                    fibres shall be provided to the User and to
                                    change the designation from time to time
                                    provided, however, that no change in
                                    designation causes a Disruption and provided
                                    also that the User is kept aware of any
                                    changes in designation.

                                    The User may request and where available EGT
                                    will provide additional fibre pairs on the
                                    Routes at the prices given in Clause 6 below
                                    in accordance with forecasts periodically
                                    reviewed and agreed between the Parties in
                                    accordance with Clause 11. The terms and
                                    conditions of this Agreement will apply to
                                    additional fibres in the same manner as the
                                    Fibres.

                                    The User is responsible for the provision of
                                    all electronic equipment needed to make use
                                    of the Fibres in accordance with the
                                    Standard Terms and Conditions set out in
                                    Schedule 2.

1.1   Route 1                       Route 1 shall be between a Terminal Station
                                    to be established in ## MATERIAL OMITTED AND
                                    SEPARATELY FILED UNDER A REQUEST FOR
                                    CONFIDENTIAL TREATMENT ## and EGT's
                                    equipment in ## MATERIAL OMITTED AND
                                    SEPARATELY FILED UNDER A REQUEST FOR
                                    CONFIDENTIAL TREATMENT ## and

1.2   Route 2                       Route 2 shall be between a Terminal Station
                                    to be established in ## MATERIAL OMITTED AND
                                    SEPARATELY FILED UNDER A REQUEST FOR
                                    CONFIDENTIAL TREATMENT ## and EGT's
                                    equipment in ## MATERIAL OMITTED AND
                                    SEPARATELY FILED UNDER A REQUEST FOR
                                    CONFIDENTIAL TREATMENT ## including a
                                    splicing chamber to connect to the Users ##
                                    MATERIAL OMITTED AND SEPARATELY FILED UNDER
                                    A REQUEST FOR CONFIDENTIAL TREATMENT ## at
                                    locations to be reasonably agreed by EGT.


                                      -3-
<PAGE>   6

                             CONFIDENTIAL TREATMENT

                                    The Parties shall agree the exact cable end
                                    locations and method of connection in
                                    relation to the locations identified in
                                    Appendix A to this Schedule, the optical
                                    losses between the cable end locations (such
                                    losses to be measured by means of a
                                    calibrated optical source and power meter),
                                    the number and location of the Regenerator
                                    Sites, the length in kilometres of each
                                    Section and having so agreed shall include
                                    this information in amendments to Appendix A
                                    to Schedule 1.

1.3   Terminal Stations             EGT will manage and maintain the Terminal
                                    Stations in ## MATERIAL OMITTED AND
                                    SEPARATELY FILED UNDER A REQUEST FOR
                                    CONFIDENTIAL TREATMENT ## (to be provided by
                                    EGT) and ## MATERIAL OMITTED AND SEPARATELY
                                    FILED UNDER A REQUEST FOR CONFIDENTIAL
                                    TREATMENT ## (whether owned by EGT or the
                                    User) and these will accommodate and provide
                                    a suitable environment for User's and
                                    Customers' equipment in accordance with the
                                    Technical Definition attached at Appendix A
                                    to Schedule 1.

                                    EGT will accommodate the User's and/or
                                    Customers' cable, ducts and equipment at the
                                    Terminal Stations and enable them to connect
                                    their networks to the User's submarine cable
                                    provided that:

1.3.1                               the User's and Customers' equipment space
                                    requirements do not exceed those specified
                                    in the floor space diagram contained in the
                                    Technical Definition attached at Appendix A
                                    to Schedule 1; and

1.3.2                               Customers' equipment power requirements are
                                    consistent with the User's equipment power
                                    requirements set out in the Technical
                                    Definition attached at Appendix A to
                                    Schedule 1,

                                    EGT shall permit Customers access to the
                                    Terminal Stations and EGT Sites to install,
                                    maintain and repair the said equipment,
                                    cabling and ducts upon the terms set out in
                                    Clauses 3.7, 3.8 and 4.5 of Schedule 2.

1.4   Regenerator Sites             EGT will provide then manage and maintain
                                    Regenerator Sites at locations to be
                                    indicated in Appendix A to Schedule 1.

1.5   Maintenance                   Maintenance and support of the Services is
                                    to be provided in accordance with the
                                    provisions of Schedule 4.


                                      -4-
<PAGE>   7

                             CONFIDENTIAL TREATMENT

2     Designated Purpose            The conveyance of traffic and Signals
                                    through the User's equipment between cable
                                    ends (i.e. ## MATERIAL OMITTED AND
                                    SEPARATELY FILED UNDER A REQUEST FOR
                                    CONFIDENTIAL TREATMENT ##). The User will
                                    also be permitted to make an in-span User
                                    Breakout to establish a connection to ##
                                    MATERIAL OMITTED AND SEPARATELY FILED UNDER
                                    A REQUEST FOR CONFIDENTIAL TREATMENT ##.

                                    The User will not be permitted to transfer
                                    the right to use the Fibres to any other
                                    person in dark or dim form but will
                                    otherwise be allowed to exercise the right
                                    to use the Fibres as it sees fit including
                                    increasing capacity or leasing capacity.
                                    Capacity means bandwidth over a fibre pair
                                    between multiplexing equipments wholly owned
                                    and operated by the User.

                                    EGT will consider written requests for
                                    variations to the Designated Purpose. Such
                                    variations may give rise to additional or
                                    increased payments.

3     Initial Term                  Commencing on the date of this Agreement and
                                    continuing in relation to each Route for the
                                    period of ## MATERIAL OMITTED AND SEPARATELY
                                    FILED UNDER A REQUEST FOR CONFIDENTIAL
                                    TREATMENT ## years from the Provision Date
                                    for that Route.

3.1   Term                          The Initial Term and thereafter unless and
                                    until terminated in accordance with the
                                    Notice Period.

4     Notice Period                 Notice of at least ## MATERIAL OMITTED AND
                                    SEPARATELY FILED UNDER A REQUEST FOR
                                    CONFIDENTIAL TREATMENT ## months given at
                                    any time to expire at the end of the Initial
                                    Term or on any date thereafter.

5     Dates

5.1   Ready for Testing Dates       The Routes shall be Ready for Testing on the
                                    following dates or such later dates as may
                                    be agreed in writing between the Parties

                                    - Route 1   1st September 1997
                                    - Route 2   1st September 1997

5.2   Provision Date                The Provision Date for each Route shall be
                                    the date when EGT has demonstrated that the
                                    Services on the Route satisfy the Acceptance
                                    Tests contained in Schedule 3.


                                      -5-
<PAGE>   8

                             CONFIDENTIAL TREATMENT

6     Usage Payment                 Payments for each Route as defined below are
                                    due per annum paid in equal Quarterly
                                    installments in advance and subject to RPI
                                    Uplift on each anniversary of its Provision
                                    Date in accordance with Clause 6 of Schedule
                                    2 of this Agreement.

                                    The first year payment for the right to use
                                    additional fibre pairs will be adjusted by
                                    the RPI Uplift from the prices given below
                                    from the Provision Date for the Route
                                    concerned.

      Route 1                       ## MATERIAL OMITTED AND SEPARATELY FILED
                                    UNDER A REQUEST FOR CONFIDENTIAL TREATMENT
                                    ##

                                                          Usage Payment 
                                    Dark fibre service    at Provision Date
                                                          
                                    First pair            ## MATERIAL OMITTED 
                                                          AND SEPARATELY FILED
                                                          UNDER A REQUEST FOR 
                                                          CONFIDENTIAL TREATMENT
                                                          ##
                                    Second pair           ## MATERIAL OMITTED   
                                                          AND SEPARATELY FILED  
                                                          UNDER A REQUEST FOR   
                                                          CONFIDENTIAL TREATMENT
                                                          ##                    
                                    Each additional pair  ## MATERIAL OMITTED   
                                                          AND SEPARATELY FILED  
                                                          UNDER A REQUEST FOR   
                                                          CONFIDENTIAL TREATMENT
                                                          ##                    

      Route 2                       ## MATERIAL OMITTED AND SEPARATELY FILED
                                    UNDER A REQUEST FOR CONFIDENTIAL TREATMENT
                                    ##

                                                          Usage Payment 
                                    Dark fibre service    at Provision Date
                                                          
                                    First pair            ## MATERIAL OMITTED 
                                                          AND SEPARATELY FILED
                                                          UNDER A REQUEST FOR 
                                                          CONFIDENTIAL TREATMENT
                                                          ##
                                    Second pair           ## MATERIAL OMITTED   
                                                          AND SEPARATELY FILED  
                                                          UNDER A REQUEST FOR   
                                                          CONFIDENTIAL TREATMENT
                                                          ##                    
                                    Each additional pair  ## MATERIAL OMITTED   
                                                          AND SEPARATELY FILED  
                                                          UNDER A REQUEST FOR   
                                                          CONFIDENTIAL TREATMENT
                                                          ##                    

                                    No Usage Payment is due for a Route for any
                                    period when, following initial Acceptance of
                                    the Route, the Route is not available for
                                    transmission of Signals (the period of which
                                    shall be determined in accordance with
                                    Schedule 4) except where due to any
                                    negligent act or omission or default or
                                    breach of this Agreement by the User. The
                                    Usage Payment due for the following Quarter
                                    will be adjusted on the invoice to take
                                    account of such loss of service.

6.1                                 The total Usage Payment will be reduced by
                                    ## MATERIAL OMITTED AND SEPARATELY FILED
                                    UNDER A REQUEST FOR CONFIDENTIAL TREATMENT
                                    ## per Quarter adjusted by RPI Uplift for
                                    each fibre pair or supply of bandwidth
                                    services from the User's submarine cable
                                    provided during that Quarter by EGT to a
                                    third party along a Route at or above the
                                    price of ## MATERIAL OMITTED AND SEPARATELY
                                    FILED UNDER A REQUEST FOR CONFIDENTIAL
                                    TREATMENT ## on Route 1 and ## MATERIAL
                                    OMITTED AND SEPARATELY FILED UNDER A REQUEST
                                    FOR CONFIDENTIAL TREATMENT ## on Route 2,
                                    such deduction to be made commencing the
                                    first full Quarter for which the third party
                                    takes the service.


                                       -6-

<PAGE>   9

                             CONFIDENTIAL TREATMENT

6.2 RPI Uplift                      The RPI uplift effective on any anniversary
                                    of the Provision Date will be at a rate of
                                    ## MATERIAL OMITTED AND SEPARATELY FILED
                                    UNDER A REQUEST FOR CONFIDENTIAL TREATMENT
                                    ## less than the published RPI percentage
                                    increase for the immediately preceding
                                    twelve month period, up to a maximum uplift
                                    of ## MATERIAL OMITTED AND SEPARATELY FILED
                                    UNDER A REQUEST FOR CONFIDENTIAL TREATMENT
                                    ## for that period.

7 Time Limits                       Return to service following notification of
                                    a fault in accordance with Schedule 4 of
                                    this Agreement:

                                    - Equipment module, connector 
                                      or splice fault             within 6 hours
                                    - Fibre fault                within 15 hours

8 Loss of Service Payments          In the event of a loss of service
                                    attributable to a fault on EGT's Network or
                                    Interface Equipment notified in accordance
                                    with Schedule 4 of this Agreement, where EGT
                                    fails to restore the Services within the
                                    Time Limits at Clause 7 above EGT will make
                                    a deduction of ## MATERIAL OMITTED AND
                                    SEPARATELY FILED UNDER A REQUEST FOR
                                    CONFIDENTIAL TREATMENT ## (subject to RPI
                                    Uplift) for each additional hour from the
                                    invoice for the following Quarterly
                                    instalment of the Usage Payment, up to a
                                    maximum total deduction in any twelve month
                                    period of ## MATERIAL OMITTED AND SEPARATELY
                                    FILED UNDER A REQUEST FOR CONFIDENTIAL
                                    TREATMENT ## of the Usage Payment for that
                                    year.

                                    Payments under this Clause 8 will only be
                                    made where the failure to restore service
                                    within the Time Limits is not due to Force
                                    Majeure or any negligent act or omission, or
                                    default or breach of this Agreement by the
                                    User.

9 Liquidated Damages                For failures to meet the Ready for Testing
                                    Dates for each Route the following
                                    Liquidated Damages will apply:

                                    - for being Ready for Testing on or before
                                    31st October l997 ## MATERIAL OMITTED AND
                                    SEPARATELY FILED UNDER A REQUEST FOR
                                    CONFIDENTIAL TREATMENT ## Liquidated Damages
                                    are due

                                    - for each complete week after 31st October
                                    1997 that the ## MATERIAL OMITTED AND
                                    SEPARATELY FILED UNDER A REQUEST FOR
                                    CONFIDENTIAL TREATMENT ## Route is not Ready
                                    for Testing ## MATERIAL OMITTED AND
                                    SEPARATELY FILED UNDER A REQUEST FOR
                                    CONFIDENTIAL TREATMENT ##

                                    - for each complete week after 31st October
                                    1997 that the ## MATERIAL OMITTED AND
                                    SEPARATELY FILED UNDER A REQUEST FOR
                                    CONFIDENTIAL TREATMENT ## Route is not Ready
                                    for Testing ## MATERIAL OMITTED AND
                                    SEPARATELY FILED UNDER A REQUEST FOR
                                    CONFIDENTIAL TREATMENT ##


                                       -7-
<PAGE>   10

                             CONFIDENTIAL TREATMENT

                                    The limit payable by EGT as Liquidated
                                    Damages under this clause is ## MATERIAL
                                    OMITTED AND SEPARATELY FILED UNDER A REQUEST
                                    FOR CONFIDENTIAL TREATMENT ## EGT shall not
                                    be responsible for failures to meet Ready
                                    for Testing Dates to the extent such
                                    failures are attributable to Force Majeure.

                                    The User may set off any Liquidated Damages
                                    payment against initial Usage Payments.

                                    The Parties agree that the Liquidated
                                    Damages provided for above are a genuine
                                    pre-estimate of the damages the User would
                                    suffer as a consequence of any delay in the
                                    initiation of service by the User to
                                    Customers and are not to be regarded as
                                    onerous or as a penalty.

10 Service Levels                   In addition to its rights under Clause 7 of
                                    Schedule 2, the User may terminate this
                                    Agreement by not less than 30 (thirty) days
                                    notice in writing to EGT in the event that:

10.1                                there are ## MATERIAL OMITTED AND SEPARATELY
                                    FILED UNDER A REQUEST FOR CONFIDENTIAL
                                    TREATMENT ## Disruptions (of whatever
                                    duration and howsoever caused other than by
                                    third party damage) in respect of the
                                    Services on a Route in any ## MATERIAL
                                    OMITTED AND SEPARATELY FILED UNDER A REQUEST
                                    FOR CONFIDENTIAL TREATMENT ## month period;
                                    or

10.2                                there are ## MATERIAL OMITTED AND SEPARATELY
                                    FILED UNDER A REQUEST FOR CONFIDENTIAL
                                    TREATMENT ## Planned Outages of more than
                                    twelve hours duration (not including outages
                                    planned for that duration at the request of
                                    the User or ## MATERIAL OMITTED AND
                                    SEPARATELY FILED UNDER A REQUEST FOR
                                    CONFIDENTIAL TREATMENT ## Planned Outages
                                    where one or more is as a consequence of
                                    cable relocation requirements of a Local
                                    Authority or Statutory undertaking
                                    (excluding EGT) in respect of the Services
                                    on a Route in any ## MATERIAL OMITTED AND
                                    SEPARATELY FILED UNDER A REQUEST FOR
                                    CONFIDENTIAL TREATMENT ## month period;

10.3                                there are ## MATERIAL OMITTED AND SEPARATELY
                                    FILED UNDER A REQUEST FOR CONFIDENTIAL
                                    TREATMENT ## Planned Outages or Disruptions
                                    howsoever caused of:

10.3.1                              more than ## MATERIAL OMITTED AND SEPARATELY
                                    FILED UNDER A REQUEST FOR CONFIDENTIAL
                                    TREATMENT ## in duration where the User has
                                    the right to use up to and including ##
                                    MATERIAL OMITTED AND SEPARATELY FILED UNDER
                                    A REQUEST FOR CONFIDENTIAL TREATMENT ## 
                                    fibre pairs; or

10.3.2                              more than ## MATERIAL OMITTED AND SEPARATELY
                                    FILED UNDER A REQUEST FOR CONFIDENTIAL
                                    TREATMENT ## duration where the User has the
                                    right to use more than ## MATERIAL OMITTED
                                    AND SEPARATELY FILED UNDER A REQUEST FOR
                                    CONFIDENTIAL TREATMENT ## fibre pairs;


                                       -8-
<PAGE>   11

                             CONFIDENTIAL TREATMENT

                                    in respect of the Services on a Route in any
                                    ## MATERIAL OMITTED AND SEPARATELY FILED
                                    UNDER A REQUEST FOR CONFIDENTIAL TREATMENT
                                    ## month period.

11 Future Provision                 Once a year the User will discuss with EGT a
                                    ## MATERIAL OMITTED AND SEPARATELY FILED
                                    UNDER A REQUEST FOR CONFIDENTIAL TREATMENT
                                    ## year forecast showing its future fibre
                                    and facilities requirements along the Routes
                                    with a view to agreeing additional
                                    provision.

                                    Any additional fibre provision shall be at
                                    the price determined under Clause 6 of this
                                    Schedule for additional pairs and for the
                                    purposes of this Agreement additional fibre
                                    shall be treated as "Fibres" from the
                                    Provision Date.

The following initial contact points will apply, these may be changed by written
notice when required by the Parties.

12 EGT contacts   Commercial     Owen Williams          tel: 0044 1473 553170
                                                        fax: 0044 1473 553166

                  Operations     Bill Hughes            tel: 0044 1473 542700
                                                        fax: 0044 1473 542166

                  Fault Control  EGT NMC                tel: 0044 1473 542244
                                                        fax: 0044 1473 544766

13 User Contacts  Commercial     John Green             tel: 0032 2 6585166
                                                        fax: 0032 2 6585107

                  Operations     Arnaud                 tel: 0032 2 6585269
                                 van Rietschoten        fax: 0032 2 6585107

                  Fault Control  HER NOC                tel: 0032 2 6585454
                                                        fax: 0032 2 6585106


                                       -9-
<PAGE>   12

                             CONFIDENTIAL TREATMENT

APPENDIX A TO SCHEDULE 1 - TECHNICAL DEFINITION

1.    PURPOSE

      The purpose of this Appendix is to define the planing and design
      requirements for the Routes specified in Clauses 1.1 and 1.2 of Schedule
      1.

2.    BACKGROUND

      In accordance with its network implementation the User is installing 2
      submarine cables:
            ## MATERIAL OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR
            CONFIDENTIAL TREATMENT ## (Northern route)
            ## MATERIAL OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR
            CONFIDENTIAL TREATMENT ## (Southern route)

      The diagram below outlines the scope of this Appendix:

      Section covered by this Appendix

                                [GRAPHIC OMITTED]
            ## MATERIAL OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR
                             CONFIDENTIAL TREATMENT ##


                                      -10-
<PAGE>   13

                             CONFIDENTIAL TREATMENT

3.    PLANNING INFORMATION

3.1   Safety and Security

      EGT will adopt appropriate safety and security measures at both the
      Terminal Stations and Regenerator Sites. EGT's security officer will
      liaise closely with the User's security officer in formulating such
      measures.

3.2   Routes

      The User requires the following Routes to be provided:

                                     Route 1

o     Linking the Terminal Station at ## MATERIAL OMITTED AND SEPARATELY FILED
      UNDER A REQUEST FOR CONFIDENTIAL TREATMENT ## with ## MATERIAL OMITTED AND
      SEPARATELY FILED UNDER A REQUEST FOR CONFIDENTIAL TREATMENT ##

o     Regenerator Site at ## MATERIAL OMITTED AND SEPARATELY FILED UNDER A
      REQUEST FOR CONFIDENTIAL TREATMENT ## intermediate points.

                                     Route 2

o     Linking the Terminal Station at ## MATERIAL OMITTED AND SEPARATELY FILED
      UNDER A REQUEST FOR CONFIDENTIAL TREATMENT ## with ## MATERIAL OMITTED AND
      SEPARATELY FILED UNDER A REQUEST FOR CONFIDENTIAL TREATMENT ## including a
      User Breakout.

      Regenerator Site at ## MATERIAL OMITTED AND SEPARATELY FILED UNDER A
      REQUEST FOR CONFIDENTIAL TREATMENT ## or possibly ## MATERIAL OMITTED AND
      SEPARATELY FILED UNDER A REQUEST FOR CONFIDENTIAL TREATMENT ##
      intermediate points.


                                      -11-
<PAGE>   14

                             CONFIDENTIAL TREATMENT

3.3   Route Diversity

      The User requires total diversity of its core network and as such requires
      the following:

                                [GRAPHIC OMITTED]
            ## MATERIAL OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR
                             CONFIDENTIAL TREATMENT ##

3.3.1    ## MATERIAL OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR
         CONFIDENTIAL TREATMENT ## will have duct diversity for building entry
         and exit points ideally of ## MATERIAL OMITTED AND SEPARATELY FILED 
         UNDER A REQUEST FOR CONFIDENTIAL TREATMENT ##

3.3.2    Where practical internal fibre cabling within the ## MATERIAL OMITTED
         AND SEPARATELY FILED UNDER A REQUEST FOR CONFIDENTIAL TREATMENT ## will
         maintain a separation of at least ## MATERIAL OMITTED AND SEPARATELY
         FILED UNDER A REQUEST FOR CONFIDENTIAL TREATMENT ## metres before entry
         into the ODF from the building entry/exit points.

3.3.3.   The User Breakout will be a minimum of ## MATERIAL OMITTED AND
         SEPARATELY FILED UNDER A REQUEST FOR CONFIDENTIAL TREATMENT ## from ##
         MATERIAL OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR CONFIDENTIAL
         TREATMENT ##

3.4      Fibre Optic Cable

         The EGT fibre optic cable specification is detailed in Schedule 3 of
         this Agreement.


                                      -12-
<PAGE>   15

                             CONFIDENTIAL TREATMENT

4.    ROUTE 1

      Route 1 is as shown indicated in the diagram below:

      e = estimated distance

                                [GRAPHIC OMITTED]
            ## MATERIAL OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR
                             CONFIDENTIAL TREATMENT ##

Note: The exact routings have not been finalised. EGT will advise the User of
the Section losses when the fibre route has been finalised. The exact routings
including maps will be provided by EGT as soon as possible in accordance with
the implementation plan and will be appended to Schedule 1.


                                      -13-
<PAGE>   16

                             CONFIDENTIAL TREATMENT

5.    ROUTE 2

      The Route 2 is as shown in the diagram below:

                                [GRAPHIC OMITTED]
            ## MATERIAL OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR
                             CONFIDENTIAL TREATMENT ##

Note: The exact routings and number of Regenerator Sites have not been
finalised. EGT will advise the User of the section losses when the fibre route
has been finalised. The exact routings including maps will be provided by EGT as
soon as possible in accordance with the Implementation Plan and will be appended
to Schedule 1.

6.    TERMINAL STATION SITES

      EGT will provide the following at the Terminal Stations at ## MATERIAL
      OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR CONFIDENTIAL TREATMENT ##
      and ## MATERIAL OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR
      CONFIDENTIAL TREATMENT ##

      o     Floor space as shown in the diagram below

      o     Maximum floor loadings ## MATERIAL OMITTED AND SEPARATELY FILED
            UNDER A REQUEST FOR CONFIDENTIAL TREATMENT ## per cabinet

      o     Power with battery backup for ## MATERIAL OMITTED AND SEPARATELY
            FILED UNDER A REQUEST FOR CONFIDENTIAL TREATMENT ## with diesel
            generator

      o     External alarm provision to a suitable termination point

      o     Interface Point (ODF)

      o     Maintenance of the building and surrounding land.


                                      -14-
<PAGE>   17

                             CONFIDENTIAL TREATMENT

                               FLOOR SPACE DIAGRAM
                                [GRAPHIC OMITTED]
            ## MATERIAL OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR
                             CONFIDENTIAL TREATMENT ##


                                      -15-
<PAGE>   18

                             CONFIDENTIAL TREATMENT

EGT will provide the following power and associated circuit breakers:

- --------------------------------------------------------------------------------
Equipment type    Unit Power      Number of Circuit         Circuit Breaker -
                  (Watts)         Breakers                       Value
- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------
            ## MATERIAL OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR
- --------------------------------------------------------------------------------
                             CONFIDENTIAL TREATMENT ##
- --------------------------------------------------------------------------------

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

EGT will provide a suitable termination point for the non SDH alarms detailed
below. The User will provide its own alarm monitoring device for those alarms
asterixed and will be responsible for their onward transmission to the User.

- --------------------------------------------------------------------------------
Power                     Environmental               Security 
- --------------------------------------------------------------------------------
Input Power Fail          High Temperature*           Rack Door Entry*
- --------------------------------------------------------------------------------
Battery Low volts         Low Temperature*            Smoke Detector*
- --------------------------------------------------------------------------------
Battery High Volts        Flood detector *
- --------------------------------------------------------------------------------

EGT will provide the User with interface points at the Terminal Stations on an
ODF as shown in the diagram below. It should be noted that although the User
will provide the optical cord from the ODF to the SDH equipment, EGT will be
responsible for maintaining it.

                                [GRAPHIC OMITTED]
            ## MATERIAL OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR
                             CONFIDENTIAL TREATMENT ##

Note: EGT will provide the ODF for the ## MATERIAL OMITTED AND SEPARATELY FILED
UNDER A REQUEST FOR CONFIDENTIAL TREATMENT ## fibre pairs for the sub sea cable
termination.


                                      -16-
<PAGE>   19

                             CONFIDENTIAL TREATMENT

7.    INTERMEDIATE REGENERATOR SITES

      EGT will provide the following at the intermediate Regenerator Sites:

      o     Floor space as shown in the diagram below

      o     Maximum floor loadings ## MATERIAL OMITTED AND SEPARATELY FILED
            UNDER A REQUEST FOR CONFIDENTIAL TREATMENT ## per cabinet

      o     Power with battery backup for ## MATERIAL OMITTED AND SEPARATELY
            FILED UNDER A REQUEST FOR CONFIDENTIAL TREATMENT ## hours with
            diesel generator

      o     External alarm provision to a suitable termination point

      o     Interface Point (ODF) Maintenance of the building and surrounding
            land


                                      -17-
<PAGE>   20

                             CONFIDENTIAL TREATMENT

                                [GRAPHIC OMITTED]
                               FLOOR SPACE DIAGRAM
            ## MATERIAL OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR
                             CONFIDENTIAL TREATMENT ##


                                      -18-
<PAGE>   21

                             CONFIDENTIAL TREATMENT

EGT will provide the following power and associated circuit breakers:

- --------------------------------------------------------------------------------
Equipment type    Unit Power      Number of Circuit         Circuit Breaker -
                  (Watts)         Breakers                       Value
- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------
            ## MATERIAL OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR
- --------------------------------------------------------------------------------
                             CONFIDENTIAL TREATMENT ##
- --------------------------------------------------------------------------------

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

EGT will provide a suitable termination point for the non SDH alarms detailed
below. The User will provide their own alarm monitoring device for those alarms
asterixed and will be responsible for their onward transmission to the User.

- --------------------------------------------------------------------------------
Power                     Environmental               Security 
- --------------------------------------------------------------------------------
Input Power Fail          High Temperature*           Rack Door Entry*
- --------------------------------------------------------------------------------
Battery Low Volts         Low Temperature*            Smoke Detector*
- --------------------------------------------------------------------------------
Battery High Volts        Flood Detector *
- --------------------------------------------------------------------------------

EGT will provide the User with interface points at the Regenerator Sites on an
ODF as shown in the diagram below. It should be noted that although the User
will provide the optical cord from the ODF to the SDH equipment, EGT will be
responsible for maintaining it.

                                [GRAPHIC OMITTED]
            ## MATERIAL OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR
                             CONFIDENTIAL TREATMENT ##


                                      -19-
<PAGE>   22

8.    CABLE TESTING & ACCEPTANCE

      Prior to hand over EGT will provide the User with the following for all
      new and existing cables:

      o     OTDR test results completed at the time of commissioning the new
            cable

      o     Manufacturers test results for the cable provided

      The User in inspecting the above figures may request a verification OTDR
      test if doubts exist as to the suitability of the cable in accordance with
      Clause 5 of Schedule 2 to the Agreement.

      The User will perform OTDR tests ODF to ODF at the time of installing the
      SDH equipment.

9.    EGT SECURITY MEASURES

      EGT's standard security measures are detailed below. More in depth
      measures may be implemented by mutual agreement and would be subject to
      separate negotiation.

9.1   Equipment Rooms

      EGT equipment rooms will be built out of materials designed to provide a
      minimal protection of 2 hours against fire coming from the adjoining
      spaces both internal or external. All holes in walls, floor and ceiling of
      the room, i.e. for pipes, wires, etc. are filled with fire proof materials
      and ducts are equipped with fire barriers.

      Normally windows are not fitted but where they are special protection
      measures are taken.

9.2   Doors

      Doors will be made of 1 hour fire proof material and will be equipped with
      panic bars. Door entry alarms will be fitted which will be remotely
      monitored by the EGT Network Management Centre.


                                      -20-
<PAGE>   23

9.3   Locks

      Doors will be fitted with a security lock for which keys cannot be
      reproduced without the agreement of EGT. Access control and management of
      key distribution will be implemented.

9.4   Fire Extinguishing System

      Where Sites are not located close to a 24 hours a day, 7 days a week basis
      security centre allowing rapid intervention of less than 3 minutes in case
      of fire detection, such Sites will be protected by a halon free
      extinguishing system (type Argonite, Inergen or other). This system will
      be connected to a fire detection system which operates automatically after
      a predetermined time in case of fire detection. The system will generate
      as a minimum the following alarms which will be remotely monitored by the
      EGT Network Management Centre:

      o     Fault

      o     Operation

9.5   Fire Extinguishers

      A minimum of two CO2 fire extinguishers will be installed in all equipment
      rooms.

9.6   Lightning Protection

      Buildings will be equipped with an appropriate number of lightning
      conductors. External inputs to the building such as, cables, pipes, power
      supplies, ducts, etc. will also be protected against lightning strikes

9.7   HVAC

      The temperature and humidity of equipment rooms is controlled and
      maintained between the following parameters:

      o     Temperature: 20 (degree)C +/ 2 (degree)C

      o     Humidity: 50% +/ 10%


                                      -21-
<PAGE>   24

      The system will generate as a minimum the following alarms which will be
      remotely monitored by the EGT Network Management Centre:

      o     Fault

      o     Shutdown

9.8   Signs

      Signs will be fitted in accordance with relevant Health and Safety
      Regulations and will include the evacuation procedure and the list of
      important numbers such as police, fire brigade etc.

9.9   Electrical Network

      A simplified diagram showing the electrical path and location of equipment
      from the public power supply network inlet to all equipment will be
      available and maintained.

9.10  Inspection

      The following will be inspected at least annually to ensure they are fully
      functional and safe:

      o     Fire Extinguishing System

      o     Fire extinguishers

      o     Power and electrical systems

      o     HVAC system

      o     Lightning Protection


                                      -22-
<PAGE>   25

                             CONFIDENTIAL TREATMENT

APPENDIX B TO SCHEDULE 1 - IMPLEMENTATION PLAN

ROUTE 1

1 General
  Agreed Design Report for Route 1                                       30/4/97
  Agreed Project Plan for Route 1                                        30/4/97

2 Terminal Station
  Purchase site                                                         *30/4/97
  Planning permission                                                   *31/5/97
  TS Design                                                             *30/4/97
  Build infrastructure                                                  *30/6/97
  Fit out TS                                                            *31/7/97
  RFS to the User                                                       *1/8/97

3 ## MATERIAL OMITTED AND SEPARATELY
  FILED UNDER A REQUEST FOR CONFIDENTIAL
  TREATMENT ##
  Plan for existing site                                                *30/4/97
  EGT/User site survey                                                  *30/4/97
  Remedial work                                                         *31/7/97
  RFS to the User                                                       *1/8/97 
                                                                        
4 ## MATERIAL OMITTED AND SEPARATELY
  FILED UNDER A REQUEST FOR CONFIDENTIAL
  TREATMENT ##
  Plan for existing site                                                *30/4/97
  EGT/HER site survey                                                   *30/4/97
  Remedial work                                                         *31/7/97
  RFS to the User                                                       *1/8/97 

5 Cable Route
## MATERIAL OMITTED AND SEPARATELY
FILED UNDER A REQUEST FOR
CONFIDENTIAL TREATMENT ##                 Route design                  *30/4/97
                                          Wayleaves/PP                  *30/4/97
                                          Contract award                *30/4/97
                                          Duct installed                *30/6/97
                                          Cable installed               *31/7/97
                                          ODF-ODF tests                 *14/8/97
                                          RES to the User               *15/8/97

## MATERIAL OMITTED AND SEPARATELY
FILED UNDER A REQUEST FOR
CONFIDENTIAL TREATMENT ##                 Handover test results to
                                           the User                     *30/4/97
                                          RFS to the User               *15/8/97

## MATERIAL OMITTED AND SEPARATELY
FILED UNDER A REQUEST FOR
CONFIDENTIAL TREATMENT ##                 Route design                  *30/4/97
                                          Wayleaves/PP                  *30/4/97
                                          Contract award                *30/4/97
                                          Duct installed                *30/6/97
                                          Cable installed               *31/7/97
                                          ODF-ODF tests                 *14/8/97
                                          RFS to the User               *15/8/97

* DATES IN ITALICS ARE NOT BINDING. BINDING DATES WILL BE ESTABLISHED IN THE
  AGREED PROJECT PLAN.


                                      -23-
<PAGE>   26

                             CONFIDENTIAL TREATMENT

ROUTE 2

1 General
  Agreed Design Report for Route 2                                      30/4/97
  Agreed Project Plan for Route 2                                       30/4/97

2 Terminal Station
  Purchase site                                                         *30/4/97
  Planning permission                                                   *31/5/97
  TS Design                                                             *30/4/97
  Build infrastructure                                                  *30/6/97
  Fit out TS                                                            *31/7/97
  RFS to the User                                                       *1/8/97

3 ## MATERIAL OMITTED AND SEPARATELY
  FILED UNDER A REQUEST FOR
  CONFIDENTIAL TREATMENT ##
  Purchase site                                                         *30/4/97
  Planning permission                                                   *30/4/97
  Regen Design                                                          *30/4/97
  Build infrastructure                                                  *30/6/97
  Fit out TS                                                            *31/7/97
  RFS to the User                                                       *1/8/97

4 ## MATERIAL OMITTED AND SEPARATELY
  FILED UNDER A REQUEST FOR
  CONFIDENTIAL TREATMENT ##
  Plan for existing site                                                *30/4/97
  EGT/User site survey                                                  *30/4/97
  Remedial work                                                         *31/7/97
  RFS to the User                                                       *1/8/97

5 Cable Route
  ## MATERIAL OMITTED AND SEPARATELY
  FILED UNDER A REQUEST FOR
  CONFIDENTIAL TREATMENT ##              Route design                   *30/4/97
                                         Wayleaves/PP
                                         Contract award                 *30/4/97
                                         Duct installed                 *31/6/97
                                         Cable installed                *31/7/97
                                         ODF-ODF tests                  *14/8/97
                                         RFS to the User                *15/8/97

## MATERIAL OMITTED AND SEPARATELY
FILED UNDER A REQUEST FOR
CONFIDENTIAL TREATMENT ##                Route design                   *30/4/97
                                         Wayleaves/PP                   *30/4/97
                                         Contract award                 *30/4/97
                                         Duct installed                 *30/6/97
                                         Cable installed                *31/7/97
                                         ODF-ODF tests                  *14/8/97
                                         RFS to the User                *15/8/97

* DATES IN ITALICS ARE NOT BINDING. BINDING DATES WILL BE ESTABLISHED IN THE
AGREED PROJECT PLAN.


                                      -24-
<PAGE>   27

SCHEDULE 2 - STANDARD TERMS AND CONDITIONS

These terms and conditions apply to the Services except where expressly
overridden or qualified by Schedule 1 to this Agreement. Words defined in such
Schedule 1 shall have the same meaning throughout this Agreement

1.    INTERPRETATION

      In this Agreement the following expressions shall have the following
      meanings unless the context otherwise requires.

      "Agreement"                   means the Agreement of which this forms
                                    part;
      
      "Confidential Information"    means all know-how, techniques, ideas,
                                    principles and concepts which underlie any
                                    of the Services and business or commercial
                                    information and all other information in
                                    whatever form obtained by either Party
                                    directly or indirectly from the other Party
                                    pursuant to this Agreement or prior to and
                                    in contemplation of it;
      
      "Customer"                    means any customer of the User, or of any
                                    company within the Group of companies of
                                    which the User is a member which is using
                                    the Services;
      
      "Designated Purposes"         means the designated purpose as defined in
                                    Schedule 1;
      
      "Disruption"                  means a failure defect or damage to the
                                    Network or Interface Equipment not being a
                                    Planned Outage which causes a deterioration
                                    in the performance of the Services below the
                                    standards set out in the Performance
                                    Specification or below such other measures
                                    of performance as may be agreed between the
                                    Parties while carrying out a Temporary
                                    Repair in accordance with Clause 5.3 of
                                    Schedule 4 and "Disrupt" and "Disrupted"
                                    shall be construed accordingly;
      
      "EGT's Sites"                 means those sites belonging to, leased by or
                                    otherwise made available for use by EGT
                                    during the Term which are not owned by
                                    leased by or


                                      -25-
<PAGE>   28

                                    otherwise provided by the User;
      
      "End Date"                    means the date when due to expiry or earlier
                                    termination of this Agreement the Services
                                    are no longer available to the User;
      
      "Expert"                      means the person appointed in accordance
                                    with clause 10;
      
      "Expert Determination"        means determination of any issue,
                                    disagreement or dispute between the Parties
                                    pursuant to the provisions of Clause 10;
      
      "Force Majeure"               means any cause beyond a Party's reasonable
                                    control that prevents its performance of all
                                    or some of its obligations hereunder
                                    including without limitation failure or
                                    delay in obtaining Infrastructure Requisite
                                    Consents or Telecommunications Requisite
                                    Consents provided that the failure or delay
                                    has not been caused or contributed to the by
                                    the party invoking the force majeure any act
                                    of God tempest failure or shortage of power
                                    supplies flood subsidence lightning or fire
                                    strike lockout trade dispute or labour
                                    disturbances the act or omission of
                                    government highway authorities or other
                                    competent authority or public
                                    telecommunications operators (other than the
                                    parties) war military operations riot
                                    difficulty delay or failure in manufacture
                                    production or supply by third parties of
                                    spare parts for the Network or Interface
                                    Equipment but for the avoidance of doubt
                                    lack of financial or other non-labour
                                    resources shall not be an event of Force
                                    Majeure;
      
      "Group"                       means the User and any other body corporate
                                    which is its holding company or subsidiary
                                    and any other body corporate which is a
                                    subsidiary of that holding company, as
                                    defined by section 53A of the Companies Act
                                    1989; and "holding company" and "subsidiary"
                                    have the meanings given by section 736 of
                                    the Companies Act 1985;
      
      "Infrastructure Requisite
      Consents"                     means those permissions consents approvals
                                    wayleaves or licences which are


                                      -26-
<PAGE>   29

                                    necessary lawfully to construct and run the
                                    Network and to maintain and repair the
                                    Network so that the User may use and enjoy
                                    the Services;
      
      "Interface Equipment"         means any accommodation, power supplies,
                                    cabling, equipment or other facilities that
                                    are to be provided by EGT under this
                                    agreement to enable the User to enjoy the
                                    Services;
      
      "Initial Term"                shall have the meaning set out in Schedule
                                    1;
      
      "Network"                     means EGT's communications network as it may
                                    exist from time to time including the fibre
                                    optic cable and all ancillary apparatus and
                                    equipment which is owned or operated by EGT
                                    whether owned leased or made available under
                                    some other form of agreement with a third
                                    party and which is essential to the totality
                                    of the operation of EGT's communication
                                    network;
      
      "Permanent Repair"            has the meaning set out in Schedule 4 to the
                                    Agreement;
      
      "Planned Outage"              means an interruption to the Services 
                                    planned by EGT and advised to the User in 
                                    accordance with the procedure set out in 
                                    Schedule 4 and in particular Planned Outage 
                                    includes:-
      
                                    (i) any interruption to or degradation of
                                        the Services caused by EGT effecting a
                                        Permanent Repair following a Temporary
                                        Repair; and
      
                                    (ii) any interruption to or degradation of
                                         the Services caused by changes to the
                                         Network or Interface Equipments;
      
                                    but does not include any interruption to or
                                    degradation of the Services caused by the
                                    provision of a new User Breakout;
      
      "Provision Date"              shall have the meaning set out in Schedule
                                    1;
      
      "PTO Licence"                 means a licence to operate a public
                                    telecommunications system granted by the
                                    Secretary of State for Trade and Industry
                                    under the Telecommunications


                                      -27-
<PAGE>   30

                                    Act 1984;
      
      "Quarters"                    Three month periods where the first Quarter
                                    starts on the Provision Date and subsequent
                                    Quarters commence at three, six and nine
                                    months after the Provision Date or the
                                    anniversaries thereof.
      
      "RPI"                         means the general index of retail prices in
                                    respect of all items as published in the
                                    monthly digest of statistics by the Central
                                    Statistics Office or if such index shall
                                    cease to be published such other index as
                                    may be officially published in substitution
                                    thereof or if not officially published that
                                    which most closely resembles such index;
      
      "Services"                    shall have the meaning set out in Schedule
                                    1;
      
      "Signals"                     means any form of electrical or optical
                                    signal connecting to the Network or
                                    Interface Equipments including but not
                                    limited to its physical properties, data
                                    coding and data structures;
      
      "Telecommunications
      Requisite Consents"           means those permissions, consents,
                                    approvals, wayleaves, licences, certificates
                                    and permits in legally effectual form
                                    necessary for the User and Customers
                                    lawfully to have access to EGT's Sites in
                                    connection with this Agreement so that the
                                    User may use and enjoy the Services for the
                                    Designated Purposes;
      
      "Temporary Repair"            has the meaning set out in Schedule 4;
      
      "Type Approved"               means equipment for which the User has
                                    provided performance specifications to EGT
                                    and for which EGT has confirmed in writing
                                    to the User that any equipments meeting the
                                    said performance specifications may be
                                    connected to the Network or Interface
                                    Equipment such confirmation not to be
                                    unreasonably withheld or delayed;
      
      "Usage Payment"               shall have the meaning set out in Schedule
                                    1;
      
      "User Breakout"               means the point on the Network where the
                                    User


                                      -28-
<PAGE>   31

                                    makes a connection to another network, the
                                    location of such point to be agreed by EGT,
                                    such agreement not to be unreasonably
                                    withheld;
      
      "User's Equipment"            means any cable or equipment that is to be
                                    provided by or on behalf of the User which
                                    connects to the Network or the Interface
                                    Equipment, or transmits or receives Signals
                                    over the Network;
      
      "User's Personnel"            means any employee duly authorised agent or
                                    contractor of the User;
      
      "VAT"                         means Value Added Tax at the then currently
                                    applicable rate.

1.2   In this Schedule:

      1.2.1 the reference to "the Parties" shall include a reference to their
            successors and permitted assigns

      1.2.2 unless the context otherwise requires all references to a particular
            Clause or Sub-Clause, shall be a reference to that Clause or
            Sub-Clause in this Schedule, reference to this Schedule shall be to
            this Schedule 2 to the Agreement, all other references to Schedules
            are to other respective schedules to the Agreement;

      1.2.3 words importing the singular shall include the plural and vice versa
            and words importing the masculine gender shall include the feminine
            and vice versa;

      1.2.4 headings are for convenience only and shall be ignored in
            interpreting this Agreement;

      1.2.5 unless the contrary intention appears words denoting persons shall
            include any individual, partnership, company, corporation, joint
            venture, trust, association, organisation, or other entity, in each
            case whether or not having separate legal personality;

      1.2.6 the words "include" or "including" are to be construed without
            limitation to the generality of the preceding words;

      1.2.7 references to a statute include any statutory modification,
            extension, or re-enactment of that statute.


                                      -29-
<PAGE>   32

      1.2.8 where the context so permits the word User shall be deemed to
            include "User's Personnel";

1.3   The following documents form part of this Agreement, and any
      inconsistencies between them shall be resolved by giving them the
      following order of precedence, unless expressly stated to the contrary:

      1.3.1 Schedule 1 and its appendices;

      1.3.2 Schedules 3 and 4;

      1.3.3 Schedule 2.

2.    PROVISION OF THE SERVICE

      2.1   EGT will provide the Services throughout the Term in accordance with
            Schedule 1.

      2.2   The Services will be available to the User continuously throughout
            the Term save when there is a Disruption or Planed Outage.

      2.3   EGT will carry out maintenance in accordance with Schedule 4 and in
            the event of a Disruption or Planed Outage restore the Services as
            soon as is reasonably practicable and will where due credit Loss of
            Service Payments to the User in accordance within Clause 8 of
            Schedule 1 and otherwise adjust the Usage Payments in accordance
            with Clause 6.7 of this Schedule.

      2.4   Provision of the Services does not prevent EGT from using its
            Network and Interface Equipments to provide services to others save
            as expressly limited in Schedule 1.

3.    COVENANTS BY EGT

      3.1   EGT will not tamper with, modify, or deal in and not without the
            prior consent of the User, repair, or alter in any way whatsoever
            (whether directly or indirectly) the whole or any part of the User's
            Equipment or Customer's Equipment situated at any premises or
            locations (whether in EGT's ownership, control, occupation or not)
            other than as may be reasonably necessary in relation to EGT
            fulfilling its obligations under this Agreement.

      3.2   Without prejudice to the generality of the foregoing paragraph, EGT
            will not knowingly take any action that could contribute to the
            degradation of the User's Equipment or Customer's Equipment.


                                      -30-
<PAGE>   33

      3.3   EGT will obtain and maintain and renew all Infrastructure Requisite
            Consents and all Telecommunications Requisite Consents from time to
            time as may be required.

      3.4   EGT will support and maintain the Network and Interface Equipments
            in accordance with the procedures set out in Schedule 4.

      3.5   EGT will give the User reasonable notice (being at least 30 days
            when practicable) of any proposed changes to the Network or
            Interface Equipments of which it is aware which might affect the
            Services.

      3.6   EGT shall diligently carry out the design and construction of the
            Routes in accordance with the Technical Definition appended to
            Schedule 1 and will use its reasonable endeavours to ensure that the
            Routes are available for Acceptance Testing by the Ready for Testing
            dates and develop and comply with the Implementation Plan in
            conjunction with the User for such purposes.

      3.7   EGT grants to the User and its employees and Customers and EGT
            approved agents and contractors, access to EGT Sites on which the
            User's Equipment or Customer's equipment is located. Access will be
            available at any reasonable time for the purposes of maintenance to
            the User's or Customers' equipment and will be available during
            normal working hours upon reasonable written notice to EGT for other
            purposes.

      3.8   EGT grants access to the Terminal Stations for the purpose of
            connecting Customers of the User to the Users Equipment. This access
            shall be as arranged by prior written agreement with EGT.

      3.9   EGT grants the User the right to connect its cable and User's
            Equipment to the Network at the cable end locations and the User
            Breakouts.

      3.10  EGT shall at all times throughout the Term and any period under
            Clause 7.9 comply in all material respects with the provisions of
            its PTO licence and all statutes and regulations applicable to the
            provision of the Services.

4     COVENANTS BY THE USER

      Throughout the Term the User shall and in relation to Clauses 4.7-4.11
      shall procure that its Customers when acting as Customers will:

      4.1   In relation to the use and/or the operation of the Services comply
            with reasonable rules, instructions or operations manuals, guidance
            notes, user documentation, operation procedures and similar from
            time to time notified by EGT to the User and all statutes and
            regulations applicable to such use and/or operation;


                                      -31-
<PAGE>   34

      4.2   Immediately and without delay inform EGT using the fault reporting
            procedure set out in Schedule 4 of any defect or problem experienced
            by the User in relation to the Services as and when such defect or
            problem arises;

      4.3   Ensure all necessary consents and approvals (including BABT approval
            where appropriate) required for the lawful installation and
            connection of the User's equipment to the Network and/or Interface
            equipments have been obtained prior to such installation and
            connection;

      4.4   Ensure that throughout the Term or the period during which the User
            has equipment connected to the Network or Interface Equipments that
            the User has the requisite permits to provide its services including
            but not limited to a suitable licence under the Telecommunications
            Act of 1984 or the Broadcasting Act 1990 if appropriate and that in
            the event of the User ceasing to hold such permits the User will
            immediately notify EGT in writing;

      4.5   Remain responsible for compliance by those accessing the EGT Sites
            pursuant to Clauses 3.7 and 3.8 or otherwise under this Agreement
            with all reasonable regulations or procedures, or safety or security
            instructions of EGT in force at those EGT Sites which have been
            communicated to the User or the persons accessing the EGT sites and
            the User shall subject to the limitations on liability in Clause 8
            of Schedule 2 indemnify EGT from and against all losses, costs,
            claims, damages and liabilities arising from any failure to comply
            with those regulations, procedures or instructions or any negligent
            act or omission or wilful default on the part of those accessing the
            EGT Sites pursuant to this Agreement,

      4.6   Use the Services for the Designated Purpose and not use the Services
            for any other purpose without first obtaining the written agreement
            of EGT;

      4.7   Not damage, tamper with, modify, deal, repair, reverse engineer or
            alter in any way whatsoever (whether directly or indirectly) the
            whole or any part of the Network or Interface Equipments situated at
            any premises or locations (whether in EGT's ownership, control,
            occupation or not);

      4.8   Under no circumstances whatsoever substitute, remove, add, or expand
            any cable, wiring, equipment, software, or fibre comprising part of
            the Network or Interface Equipment, hardware or software connected
            (whether directly or indirectly) to the Network without EGT's
            written prior permission;

      4.9   Only connect equipment to the Network or Interface Equipment that
            has been Type Approved by EGT and the User must submit
            specifications for any Signals to be carried over the network for
            approval by EGT before transmitting such Signals. Furthermore the
            User warrants that all approved equipment connected or to be
            connected to the Network is operating within its performance


                                      -32-
<PAGE>   35

            specifications to the best of the User's reasonable knowledge;

      4.10  Without prejudice to the generality of the foregoing subclause
            4.1-4.2, 4.6-4.9, not knowingly take any action that could
            contribute to the degradation of the Network or Interface Equipment,
            affect other users of the Network, or adversely impact on EGT's
            ability to provide the Services;

      4.11  Provide EGT with all information which EGT may reasonably require
            from the User in order to efficiently establish and provide the
            Services and to restore the Services following a Disruption or
            Planned Outage;

      4.12  Not use the Services or knowingly permit them to be used for any
            transmission of anything contrary to any terms of EGT's PTO Licence.

5.    MAINTENANCE

      5.1   EGT may modify, change, maintain, repair or replace any part of the
            Network or Interface Equipments at any time at its own expense in
            accordance with Schedule 4 provided there is no deterioration to the
            Services.

      5.2   EGT shall use its reasonable endeavours to ensure that the Fibres
            and Interface Equipment are fully prepared to be connected to the
            User's Equipment or the User's fibre by the Ready for Testing dates
            set. Once the Fibres and Interface Equipment are so prepared the
            User shall carry out the connection.

      5.3   EGT and the User shall each carry out the Acceptance Tests
            designated as their responsibility in the Technical Definition and
            exchange test results. Each party shall complete their Acceptance
            Tests within 3 weeks.

      5.4   On satisfactory completion of the Acceptance, EGT and the User shall
            each sign a Certificate of Readiness indicating the Provision Date.

      5.5   If an Acceptance Test ("the Initial Acceptance Test") is not
            satisfactorily completed, the parties agree to co-operate in order
            to identify the cause of the failure of the Acceptance Test. EGT and
            the User shall use best efforts to resolve the problem. Once the
            problem has been resolved, the parties shall carry out the
            Acceptance Tests ("the Further Acceptance Tests") in accordance with
            the provisions of the Annex. Unless the failure of the Initial
            Acceptance Test is due to any negligent act, omission or breach of
            contract by the User the costs of Further Acceptance Tests will be
            borne by EGT.

      5.6   If the cause of the failure of the Acceptance Tests has not been
            identified within 5 Business Days of the date upon which the Initial
            Acceptance Test failed to be


                                      -33-
<PAGE>   36

                             CONFIDENTIAL TREATMENT

            satisfactorily completed EGT shall use reasonable endeavors to
            identify suitable alternative fibres (which shall themselves be
            subject to Acceptance Testing under this Clause); or an alternative
            solution that will meet the Acceptance Tests.

6.    PAYMENTS

      6.1   In consideration of EGT providing the Services, and the other
            obligations assumed by EGT pursuant to the Agreement, the User
            shall at the due dates pay Usage Payments (less any payments due
            under Clauses 6, 8 or 9 of Schedule 1) to EGT.

      6.2   EGT will invoice the User for Usage Payment Quarterly in advance.

      6.3   The User shall pay the said invoices within 45 days of the date of
            the said invoices.

      6.4   The Usage Payment will be subject to annual review and uplift on
            each anniversary of the Provision Date using the formula below:

            new Usage Payment = last Usage Payment x (## MATERIAL OMITTED AND
            SEPARATELY FILED UNDER A REQUEST FOR CONFIDENTIAL TREATMENT ## +
            fractional change in RPI since last annual review - ## MATERIAL
            OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR CONFIDENTIAL
            TREATMENT ##)

            limited to a maximum uplift of ## MATERIAL OMITTED AND SEPARATELY
            FILED UNDER A REQUEST FOR CONFIDENTIAL TREATMENT ## for any one
            annual period.

            For the purposes of this calculation the new RPI used shall be the
            one published most recently prior to the relevant anniversary of the
            Provision Date.

            All RPI Uplifts shall be calculated on this basis.

      6.5   If the User fails to pay for the Services on or before the due date,
            EGT may without prejudice to any rights or remedies it may have:

            6.5.1 if payment in full is not made within 30 days of due date
                  cancel or suspend any further provision to the User of the
                  Services;

            6.5.2 charge the User interest on the outstanding amounts (both
                  before and after any judgment) at the rate of ## MATERIAL
                  OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR CONFIDENTIAL
                  TREATMENT ## above the National Westminster Bank Plc base rate
                  per annum calculated on a daily basis from the date the
                  payment was due until the total sum has been paid.

      6.6   The Usage Payment is expressed exclusive of VAT and any VAT
            chargeable shall be paid in addition by the User.

      6.7   Loss of Service Payments and payments under Clause 6 of Schedule 1
            shall appear as a deduction from the Usage Payment otherwise payable
            on User's account for the Quarter following the Quarter in which the
            Loss of Service Payment arose.


                                      -34-
<PAGE>   37

7.    DURATION AND TERMINATION

      7.1   The Agreement shall come into force the day it is executed by the
            last Party but other than as indicated in the Implementation Plan
            EGT shall not be obliged to provide the Services until the Provision
            Date.

      7.2   Subject to Clauses 7.3 and 7.6 and Schedule 1, Clause 10, the
            Agreement shall continue in force throughout the Initial Term and
            thereafter unless either party gives not less than the Notice Period
            written notice to the other of termination.

      7.3   Either Party shall be entitled to terminate this Agreement by 30
            days written notice to the other if:

            7.3.1 the other commits any material breach of the provisions of
                  this Agreement and in the case of such breach which is capable
                  of remedy, fails to remedy the same within 90 days of receipt
                  of a written notice giving full particulars of the breach and
                  requiring its remedy;

            7.3.2 an encumbrancer takes possession or a receiver is appointed
                  over any property or assets of the other;

            7.3.3 the other makes an involuntary arrangement with its creditors
                  or becomes subject to an administration order;

            7.3.4 the other goes into liquidation (except for the purposes of
                  solvent amalgamation, reconstruction or other reorganisation
                  and in such manner that the company resulting from the
                  reorganisation effectively agrees to be bound to or to assume
                  to obligations imposed on the other by this Agreement);

            7.3.5 the other ceases, or threatens to cease to carry on business.

      7.4   A breach shall be considered capable of remedy for the purposes of
            Clause 7.3.1 if the defaulting party can comply with the provisions
            in question in all respects other than as to the time of performance
            (provided that the time of performance is not of the essence).

      7.5   Termination of the Agreement shall be without prejudice to the
            rights by the party accrued prior to termination including any right
            to payment of any sum and any right to sue in respect of any
            antecedent breach of this Agreement.


                                      -35-
<PAGE>   38

      7.6   The User may, by written notice to EGT, terminate the whole of this
            Agreement or either Route in any of the following circumstances
            which are not caused or contributed to by Force Majeure or any
            negligent act or omission, breach of contract or willful default by
            the User:

            7.6.1 At any time the design and construction of the Routes is more
                  than ninety (90) days or such other period as may be agreed
                  between the parties behind the schedule provided for in the
                  then current Implementation Plan; or

            7.6.2 The Routes are not Ready for Testing (or EGT acknowledges in
                  writing that they will not be ready) by 1 March 1998.

      7.7   Termination shall not:

            7.7.1 affect any provision of the Agreement which in order to give
                  full effect to its meaning needs to survive termination
                  including Schedule 1 Clauses 8 and 9 and Schedule 2, Clause
                  7.9 and 7.10; or

            7.7.2 bring to an end the confidentiality obligations of the Parties
                  under this Agreement which shall survive for a period of 3
                  years after termination.

      7.8   Upon termination of the Agreement by EGT pursuant to Clause 7.3 all
            sums properly invoiced to the User shall become immediately due and
            payable.

      7.9   Following termination under Clause 7 or under Schedule 1 Clause 10
            otherwise than pursuant to termination by EGT under Clause 7.3.2 to
            7.3.5 the User shall be entitled to continue to use the Services for
            a period of 18 months (or such lesser period as it shall specify by
            no less than thirty days notice in writing given at any time during
            such period) upon and subject to provisions of this Agreement which
            notwithstanding termination shall apply to such use.

      7.10  Upon termination of this Agreement by EGT pursuant to Clauses
            7.3.2-7.3.5 or at the expiry of any Notice Period or of the period
            determined under Clause 7.9:

            7.10.1 EGT shall forthwith disconnect the User's and the Customers'
                   equipment from the Network.

            7.10.2 The User shall within 14 days remove the User's equipment and
                   shall (unless EGT direct otherwise) cause the Customer to
                   remove the Customer's equipment from EGT Sites forthwith
                   making good and otherwise indemnifying EGT against all damage
                   or loss occasioned thereby to the reasonable satisfaction of
                   EGT.


                                      -36-
<PAGE>   39

                             CONFIDENTIAL TREATMENT

            7.10.3 EGT shall within 7 days forward to the User a statement of
                   all monies due under the Agreement and/or pursuant to Clause
                   7.9 and the User shall within 14 days of receipt of such
                   statement pay the invoices then due to EGT with interest
                   thereon in default of payment in accordance with the
                   provisions of Clause 6.5.2.

8.    WARRANTY AND LIABILITY

      8.1   Each Party represents and warrants to the other that it has legal
            power, authority and right to enter into the Agreement and to
            perform its respective obligations in the Agreement.

      8.2   Each Party shall be liable for death or personal injury arising as a
            direct result of the negligence of that Party or its employees.

      8.3   EGT's liability to the User shall be limited in the following
            respects at all times during the Term and during any period under
            Clause 7.9:

            8.3.1 for failure to meet the Ready for Testing Dates, to Liquidated
                  Damages as set out in Clause 9, Schedule 1.

            8.3.2 For failure to restore Services within the Time Limit, to Loss
                  of Service Payments as set out in Clause 8, Schedule 1.

            Nothing in this Clause 8.3 shall prejudice or limit the quantum of
            damages the User is entitled to recover consequent upon termination
            pursuant to Clause 7 of Schedule 2 and Clause 10 of Schedule 1

      8.4   Neither party shall be liable to the other in respect of any breach
            of the provisions of this Agreement to the extent contributed to by
            the negligence, act or omission of the other, or Force Majeure.

      8.5   In no event shall either party be liable to the other in tort,
            negligence, breach of statutory duty or otherwise for any loss,
            damage, cost or expense of any nature incurred or suffered by the
            other party of an indirect, consequential, incidental, special or
            exemplary nature including any economic loss or other loss of
            opportunity, turnover, profit, business or goodwill.

      8.6   The maximum liability of each party to the other, whether during the
            Term or following termination, in respect of any breach of this
            Agreement (including any breach under this Clause 8 but excluding
            breaches under Clause 8.2) or arising as a consequence of the tort,
            negligence or breach of statutory duty shall be a total of ##
            MATERIAL OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR
            CONFIDENTIAL TREATMENT ## per event or series of connected events
            and ## MATERIAL OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR
            CONFIDENTIAL TREATMENT ## in any 12 month period.


                                      -37-
<PAGE>   40

      8.7   Not withstanding the provisions of this Clause 8, each party shall
            idemnify the other against all losses caused to the property of
            the other as a consequence of any breach of any provision of this
            Agreement up to the limits of insurance set out in Clause 11.

9.    CONFIDENTIALITY AND INTELLECTUAL PROPERTY

      9.1   Each Party agrees to keep confidential all Confidential Information
            of the other Party and to use the same exclusively for the purposes
            of or as contemplated by the Agreement and to disclose the same only
            to those of its employees, Group companies, agents and
            sub-contractors pursuant to the Agreement (if any) to whom and to
            the extent that such disclosure is reasonably necessary for the
            purposes of the Agreement.

      9.2   The obligations and restrictions contained in this Clause 9 shall
            not apply to information:

            9.2.1 which is now or subsequently becomes available to the public
                  otherwise than by breach of the Agreement by the receiving
                  Party;

            9.2.2 which the receiving Party can prove by documentary evidence
                  was already in the receiving Party's possession and at its
                  free disposal prior to obtaining the same directly or
                  indirectly from the other Party;

            9.2.3 which is subsequently disclosed to the receiving Party free of
                  restrictions on disclosure and use by a third party not acting
                  on behalf of the other Party or directly or indirectly bound
                  to the other Party by obligations of confidentiality or
                  non-use in relation to such information; or

            9.2.4 which the receiving Party is required by any reason of law to
                  disclose.

      9.3   For the avoidance of doubt nothing in this Clause 9 shall be
            interpreted as preventing either Party making full and unrestricted
            use of its knowledge and expertise pertaining generally to the
            industry of the other Party.

      9.4   All intellectual property relating to the subject matter of this
            Agreement conceived, originated, devised, developed, or created by
            EGT, its officers or employees shall vest in EGT.

      9.5   The User acknowledges that it shall have no licence, right, title or
            interest in or to any intellectual property relating to the Network
            or Services.


                                      -38-
<PAGE>   41

10.   EXPERT DETERMINATION

      10.1  All disputes or differences which shall at anytime hereafter arise
            between EGT and the User in respect of the construction or effect of
            this Agreement or the rights duties and liabilities of the Parties
            hereunder or any matter or event connected with or arising out of
            this Agreement (a "Relevant Event") shall be referred to a director
            (or his nominee) of each of the Parties within 5 business days of
            the Relevant Event arising and they shall endeavour to reach a
            mutually acceptable solution. In the event that a Relevant Event
            cannot be settled by the directors (or their nominees) within 5
            business days of it being referred to the Parties' directors then if
            both the Parties so decide the provision of Clause 10.2 shall apply.

      10.2  If both Parties agree to refer an issue to an Expert and the Parties
            fail to nominate or agree such Expert within 10 days, then the
            Expert may be nominated at the request of either Party by the
            President or other duly appointed officer of such UK professional
            body as the parties may agree or in the absence of agreement:

            10.2.1 in the case of a dispute as to the interpretation or
                   construction of this Agreement, by the President or other
                   authorised officer of the Law Society of England and Wales;

            10.2.2 in the case of a dispute as to the sum payable under this
                   Agreement by the President or other authorised officer of the
                   Institute of Chartered Accountants in England and Wales; and

            10.2.3 in the case of all other disputes concerning the operation
                   and maintenance of the Network or the provision of the
                   Services, by the President or other authorised officer of the
                   Institution of Electrical Engineers or equivalent as
                   appropriate in the circumstances.

      10.3  Each of the Parties shall be entitled to provide the Expert with
            such information and such written representation as may be necessary
            to assist in the determination of the dispute in question provided
            such information and/or representations are made within 30 days of
            the date of the referral.

      10.4  The Expert shall be entitled to seek expert evidence at his
            discretion as to the circumstances relating to the dispute between
            the Parties and the most expeditious method of its resolution.

      10.5  The Expert shall be required by the Parties to reach a determination
            of the issues referred to him as soon as is reasonably practicable
            and unless the Parties otherwise agree within 45 days of his
            appointment.


                                      -39-
<PAGE>   42

                             CONFIDENTIAL TREATMENT

      10.6  The Expert shall act as an expert and not as an arbitrator and his
            decision shall be notified to both Parties simultaneously and
            implemented a soon as is practicable upon notification. Unless both
            Parties agree in writing prior to the appointment of the Expert, the
            Expert's decision (including his decision as to costs) shall be
            final and binding on both Parties.

11.   INSURANCE

      11.1  EGT shall procure prior to the Provision Date for each Route and
            maintain in force during the Term:

           11.1.1 All risk physical damage insurance (subject to all usual
                  exclusions) for damage caused by EGT and/or its equipment in
                  an amount no less than ## MATERIAL OMITTED AND SEPARATELY
                  FILED UNDER A REQUEST FOR CONFIDENTIAL TREATMENT ## covering
                  the EGT Sites and the cable and equipment at the EGT Sites
                  belonging to EGT, the User and the Customers. All losses
                  recoverable under this Clause shall be payable to the User,
                  EGT and their Customers, as their respective interests may
                  appear.

           11.1.2 Public liability insurance at the Insurance Sites in an amount
                  no less than ## MATERIAL OMITTED AND SEPARATELY FILED UNDER A
                  REQUEST FOR CONFIDENTIAL TREATMENT ##.

      11.2  The User shall procure all risks physical damage insurance and
            public liability insurance on the terms and for the period set out
            in Clause 11.1 and shall maintain such insurance for so long as the
            User's or customers' equipment shall remain at the EGT Sites. Such
            insurance shall cover the cable and equipment at the EGT Sites
            belonging to the User, the Customer and EGT and its customers, for
            damage, personal injury or loss caused by the User or its Equipment.

      11.3  EGT and the User will provide each other with satisfactory evidence
            of the existence of said coverages on request.

12.   GENERAL

      12.1  Except as provided in this Clause, neither EGT nor the User may
            assign any of its rights or obligations under this Agreement without
            the prior written consent of the other party such consent not to be
            unreasonably withheld or delayed. The User may assign all, but not
            part, of its rights and obligations under this Agreement to a wholly
            owned subsidiary of the User provided that the User remains fully
            responsible to EGT for the performance by the assignee of its
            obligations under this Agreement. The User shall enter into a
            guarantee of the assignee's obligations to EGT if requested to do so
            by EGT.

      12.2  EGT may sub-contract the performance of any of its obligations under
            the Agreement to any third party.


                                      -40-
<PAGE>   43

      12.3  Neither Party shall be deemed to be in breach of the Agreement, or
            otherwise liable to the other by reason of any delay in performance,
            or non-performance of any of its obligations under this Agreement to
            the extent that delay or non-performance is caused by Force Majeure.
            Any Party affected by such circumstances shall notify the other
            Party and use all reasonable endeavours to avoid or overcome
            circumstances of Force Majeure.

      12.4  The Agreement shall be governed by and construed in accordance with
            English law and the Parties submit to the non-exclusive jurisdiction
            of the English Courts.

      12.5  No delay by either Party in enforcing the provisions of the
            Agreement shall be deemed a waiver of that Party's right to enforce
            that provision.

      12.6  The illegality or invalidity of any part of the Agreement shall not
            affect the legality or validity of the remainder of it.

      12.7  The Agreement together with its appendices and schedules and all
            information contained and referred to therein and the letter from
            EGT to the User of even date respecting the Margate Terminal Station
            embody the entire understanding between the Parties concerning the
            subject matter of this Agreement and override and supersede any
            prior promises, representations, undertakings and implications
            between the Parties concerning the subject matter of this Agreement.

      12.8  This Agreement may only be varied in writing signed by an authorised
            representative of each Party.

      12.9  Any notice given under this Agreement shall be in writing and sent
            or delivered to the address of the recipient Party given in this
            Agreement (or as from time to time otherwise notified) by:

           12.9.1 facsimile transmission, in which case it will be deemed
                  received when sent; or

           12.9.2 hand (including courier) in which case it will be deemed
                  received when delivered; or

           12.9.3 air mail (where appropriate) in which case it will be deemed
                  received 5 days after posting; or

           12.9.4 ordinary first class mail (where the recipient is within the
                  same jurisdiction as the sender) in which case it will be
                  received 2 days after posting.


                                      -41-
<PAGE>   44

      12.10 None of the provisions of this Agreement shall be deemed to
            constitute a partnership between the Parties and neither of them
            shall have the authority to bind the other in any way except as
            provided in this Agreement.

      12.11 Each Party shall bear its own legal costs, legal fees and other
            expenses incurred in the preparation and execution of this
            Agreement.


                                      -42-
<PAGE>   45

                             CONFIDENTIAL TREATMENT

SCHEDULE 3- PERFORMANCE SPEClFICATIONS

EGT Single Mode Optical Fibre Cable Parameters

================================================================================

TYPE AND CONSTITUTION

Single mode, complying with recommendation: CCITT G 652

================================================================================

GEOMETRICAL PROPERTIES
- ----------------------

Mode field diameter at ## MATERIAL         ((mu)m)     ## MATERIAL OMITTED AND  
OMITTED AND SEPARATELY FILED UNDER                     SEPARATELY FILED UNDER A
A REQUEST FOR CONFIDENTIAL                             REQUEST FOR CONFIDENTIAL
TREATMENT ##                                           TREATMENT ##             

Reference Surface diameter                  ((mu)m)    ## MATERIAL OMITTED AND
                                                       SEPARATELY FILED UNDER A
                                                       REQUEST FOR CONFIDENTIAL
                                                       TREATMENT ##

Primary Coating diameter                    ((mu)m)    ## MATERIAL OMITTED AND
                                                       SEPARATELY FILED UNDER A
                                                       REQUEST FOR CONFIDENTIAL
                                                       TREATMENT ##

Core non circularity                        (%)        ## MATERIAL OMITTED AND
                                                       SEPARATELY FILED UNDER A
                                                       REQUEST FOR CONFIDENTIAL
                                                       TREATMENT ##

Reference surface non circularity           (%)        ## MATERIAL OMITTED AND
                                                       SEPARATELY FILED UNDER A
                                                       REQUEST FOR CONFIDENTIAL
                                                       TREATMENT ##

Core/cladding concentricity error           ((mu)m)    ## MATERIAL OMITTED AND
                                                       SEPARATELY FILED UNDER A
                                                       REQUEST FOR CONFIDENTIAL
                                                       TREATMENT ##

Primary coating concentricity error         ((mu)m)    ## MATERIAL OMITTED AND
                                                       SEPARATELY FILED UNDER A
                                                       REQUEST FOR CONFIDENTIAL
                                                       TREATMENT ##
- --------------------------------------------------------------------------------

OPTICAL PROPERTIES
- ------------------

Cut-off-wavelength                          (nm)       ## MATERIAL OMITTED AND
                                                       SEPARATELY FILED UNDER A
                                                       REQUEST FOR CONFIDENTIAL
                                                       TREATMENT ##

Attenuation:

## MATERIAL OMITTED AND SEPARATELY           (dB/km)   ## MATERIAL OMITTED AND  
FILED UNDER A REQUEST FOR                              SEPARATELY FILED UNDER A
CONFIDENTIAL TREATMENT ##                              REQUEST FOR CONFIDENTIAL
                                                       TREATMENT ##             

## MATERIAL OMITTED AND SEPARATELY           (dB/km)   ## MATERIAL OMITTED AND  
FILED UNDER A REQUEST FOR                              SEPARATELY FILED UNDER A
CONFIDENTIAL TREATMENT ##                              REQUEST FOR CONFIDENTIAL
                                                       TREATMENT ##             

Total Dispersion:

## MATERIAL OMITTED AND SEPARATELY          (ps/nm.km) ## MATERIAL OMITTED AND  
FILED UNDER A REQUEST FOR                              SEPARATELY FILED UNDER A
CONFIDENTIAL TREATMENT ##                              REQUEST FOR CONFIDENTIAL
                                                       TREATMENT ##             

## MATERIAL OMITTED AND SEPARATELY          (ps/nm.km) ## MATERIAL OMITTED AND  
FILED UNDER A REQUEST FOR                              SEPARATELY FILED UNDER A
CONFIDENTIAL TREATMENT ##                              REQUEST FOR CONFIDENTIAL
                                                       TREATMENT ##             

Zero Dispersion Wavelength                  (nm)       ## MATERIAL OMITTED AND
                                                       SEPARATELY FILED UNDER A
                                                       REQUEST FOR CONFIDENTIAL
                                                       TREATMENT ##

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

MECHANICAL PROPERTIES
- ---------------------

Proof test                                   (%)       ## MATERIAL OMITTED AND
                                                       SEPARATELY FILED UNDER A
                                                       REQUEST FOR CONFIDENTIAL
                                                       TREATMENT ##

Macro bend attenuation at                   (dB)       ## MATERIAL OMITTED AND  
## MATERIAL OMITTED AND SEPARATELY                     SEPARATELY FILED UNDER A
FILED UNDER A REQUEST FOR                              REQUEST FOR CONFIDENTIAL
CONFIDENTIAL TREATMENT ## (## MATERIAL                 TREATMENT ##             
OMITTED AND SEPARATELY FILED UNDER          
A REQUEST FOR CONFIDENTIAL
TREATMENT ## turns on ## MATERIAL
OMITTED AND SEPARATELY FILED UNDER
A REQUEST FOR CONFIDENTIAL
TREATMENT ## diameter mandrel)

Fibre Strain non uniformity                 (%)        ## MATERIAL OMITTED AND
                                                       SEPARATELY FILED UNDER A
                                                       REQUEST FOR CONFIDENTIAL
                                                       TREATMENT ##

Splice Losses (Maximum)                     dB         ## MATERIAL OMITTED AND
                                                       SEPARATELY FILED UNDER A
                                                       REQUEST FOR CONFIDENTIAL
                                                       TREATMENT ##

Connector Type                              Diamond    ## MATERIAL OMITTED AND
                                                       SEPARATELY FILED UNDER A
                                                       REQUEST FOR CONFIDENTIAL
                                                       TREATMENT ##
================================================================================


                                      -43-
<PAGE>   46

SCHEDULE 4 - MAINTENANCE AND SUPPORT

1.    INTRODUCTION

      This Schedule and its Appendix sets out the responsibilities of the User
      and of EGT in respect of the Corrective Maintenance and Preventative
      Maintenance for the Services, Fibre and cable maintenance and
      accommodation maintenance.

2.    INTERPRETATION

      2.1   In this Schedule the Interpretations in the Network Services
            Agreement will apply and in addition the following expressions shall
            have the following meanings unless the context otherwise requires:

            "Acceptance Test"             means all those tests and proving
                                          works set out in Appendix A to
                                          Schedule 1 which will be carried out
                                          by EGT and may be witnessed by the
                                          User to demonstrate that the Services
                                          are functioning in accordance with the
                                          Performance Specification;

            "Connection Number"           means the number that uniquely
                                          identifies on EGT's Interface
                                          Equipment the point at which the
                                          connection to the User's Equipment is
                                          made;

            "Corrective Maintenance"      means works necessary to repair the
                                          Network or Interface Equipments to
                                          restore the Services following a
                                          Disruption;

            "Fault Control Point"         means the EGT Network Management
                                          Centre or HER Network Operation Centre
                                          as specified in Schedule 1 Clauses 12
                                          and 13 being the single point of
                                          contact for all maintenance
                                          activities;

            "Permanent Repair"            means a repair of a standard such that
                                          the Services are re-instated in
                                          accordance with the Performance
                                          Specification and no further attention
                                          as a result of the cause of the
                                          associated Disruption is required by
                                          EGT;


                                      -44-
<PAGE>   47

            Planned Work"                 means all work required to be carried
                                          out by this Schedule which is
                                          programmed for execution at a future
                                          time;

            "Preventative Maintenance"    means the reasonable planned
                                          systematic testing and inspection of
                                          the Network and Interface Equipment to
                                          identify (so far as such reasonable
                                          tests are capable of identifying)
                                          faults and defects in the Network or
                                          Interface Equipment or a state of
                                          affairs which could reasonably be
                                          expected to give rise to such faults
                                          and defects;

            "Section"                     means a length of the Network between
                                          two adjacent User Breakout points;

            "Temporary Repair"            means a repair made using any
                                          technique chosen by EGT to restore or
                                          re-instate the Services until a
                                          Permanent Repair has been completed.

3     DUTIES OF THE USER

      3.1   The User shall monitor the Services in order to detect any
            Disruption to the Service.

      3.2   In the event that:-

            3.2.1 The User detects a Disruption and such Disruption continues;
                  and

            3.2.2 The User requires EGT to carry out Corrective Maintenance to
                  the Network or Interface Equipments following the detection of
                  a Disruption;

            the User shall so notify EGT (such notice herein after referred to
            as a "Fault Notice").

      3.3   A Fault Notice shall contain the following information:-

            3.3.1 a unique fault reference number allocated by the User;

            3.3.2 the time at which the User issued the Fault Notice to EGT;


                                      -45-
<PAGE>   48

            3.3.3 the Section in which the fault or defect giving rise to the
                  Disruption is located;

            3.3.4 the Connection Number of the Service that is Disrupted; and

            3.3.5 any further information available to the User which may assist
                  EGT in locating the fault and restoring the Services;

            all of the foregoing information will be notified to the EGT Fault
            Control Point by telephone and within 2 hours thereafter confirmed
            by the User by facsimile transmission.

      3.4   Subject to Clause 5.1.2. the User shall provide reasonable
            assistance in connection with the location of a fault or defect
            within a Section giving rise to a Disruption. The User shall act
            reasonably and without delay in determining whether it shall agree
            to such request and shall not delay in notifying EGT of its
            decision. Each Party shall bear its own costs incurred in attempting
            to locate any such fault or defect within a Section.

      3.5   If upon service of a Fault Notice:

            3.5.1 it shall be found that the Fault Notice contains a material
                  inaccuracy; or

            3.5.2 it is found that the deterioration in the Service which is the
                  subject of the Fault Notice has been caused by the act or
                  omission of the User or its Customers contrary to the notified
                  requirements of EGT or to the ordinary and proper standards of
                  usage applicable to the Designated Purpose; or

            3.5.3 it is found that the deterioration in the Service which is the
                  subject of the Fault Notice is not due to a Disruption;

            (any such Fault Notice hereinafter referred to as a "Defective
            Notice") then:-

            3.5.4 immediately on becoming aware of a matter referred to in
                  Clauses 3.5.1, 3.5.2 and 3.5.3 the User shall advise EGT
                  accordingly (unless the User was made aware of such matter by
                  EGT); and

            3.5.5 the User shall pay to EGT within 28 days of demand a fee equal
                  to such reasonable costs if any as EGT shall have incurred in
                  responding to the Defective Notice and attempting to carry out
                  Corrective Maintenance; and


                                      -46-
<PAGE>   49

            3.5.6 the Defective Notice shall cease to have effect and all
                  provisions in respect of Time Limits for the completion of
                  Corrective Maintenance and the provisions in respect of the
                  Loss of Service Payments in the Agreement shall cease to have
                  effect in respect of the Defective Notice but without
                  prejudice to other relevant provisions in the Agreement; and

            3.5.7 in the event that:

                3.5.7.1 The Defective Notice is in respect of a Disruption;
                        and

                3.5.7.2 the User continues to require EGT to carry out
                        Corrective Maintenance hereunder;

                  the User shall issue a further Fault Notice which shall
                  validly contain the information referred to in Clause 3.3
                  hereof.

      3.6   Subject to Clause 5.1.4 the User shall provide assistance to carry
            out the above Corrective Maintenance in which case the User shall
            act reasonably and without delay in determining whether it will
            agree to such a request and shall not delay in notifying EGT of its
            decision. For the avoidance of doubt the User will not be requested
            to provide on-site assistance.

      3.7   For the avoidance of doubt the User shall be responsible for all
            corrective maintenance, preventative maintenance and all other works
            or tests of whatsoever kind to the User's Equipment for the purpose
            of using the Services but shall not carry out Corrective Maintenance
            or Preventative Maintenance.

      3.8   It is recognised by the User that in certain circumstances EGT may
            require the User to power down the lasers and otherwise make safe
            the User's Equipment to allow work to take place on the Network or
            Interface Equipments; the User will comply with all such requests
            and will leave the User's Equipment in such condition until
            authorised by EGT's Fault Control Point that it may be restored to
            its operational condition. Such requirements will be considered
            Corrective Maintenance or Preventative Maintenance as appropriate.

4     DUTIES OF EGT

      4.1   EGT shall supply the User with such accurate records of the Network
            and interface Equipment as the User may reasonably request in order
            to enjoy the Services within four weeks of the Provision Date or
            within six weeks of any change to the Network or Interface
            Equipments that might impact on the User's enjoyment of the
            Services. Such records to include drawings, specifications and
            results of tests in a format to be agreed carried out under Clause 7
            hereof as appropriate to the Services. EGT retains all copyright in
            such records and they


                                      -47-
<PAGE>   50

                             CONFIDENTIAL TREATMENT

            shall form part of EGT's Confidential Information.

      4.2   When carrying out work on the Network or Interface Equipments EGT
            will provide for itself communications facilities (other than mobile
            phones, which may interfere with the User's Equipment) independent
            of the Services to allow EGT on-site work teams to maintain contact
            with the EGT Fault Control Point.

      4.3   In respect of Preventative Maintenance:-

            4.3.1 EGT shall plan and carry out all Preventative Maintenance
                  which EGT deems necessary to the Network or Interface
                  Equipment;

            4.3.2 EGT shall consult with the User and use reasonable endeavours
                  to take account of the User's reasonable requirements and its
                  obligations under Clause 6.3 of this Schedule when planning
                  Preventative Maintenance; and

            4.3.3 all works in respect of such Preventative Maintenance shall be
                  carried out by EGT as Planned Work in accordance with Clause
                  6.

      4.4   EGT shall carry out Corrective Maintenance to the Network and
            Interface Equipment upon:-

            4.4.1 receipt of a Fault Notice in accordance with Clause 3.2; such
                  Corrective Maintenance shall be carried out by EGT in
                  accordance with Clause 5;

            4.4.2 detecting a state of affairs which could give rise to a
                  Disruption whilst carrying out Preventative Maintenance to the
                  Network or Interface Equipment; such Corrective Maintenance
                  shall be carried out by EGT in accordance with Clause 6.
                  However notwithstanding the provisions of Clause 6 the Parties
                  hereby acknowledge that they may agree to carry out works at a
                  time affording the User less notice than specified in Clause
                  6.

5     CORRECTIVE MAINTENANCE

      5.1   Upon receipt of the Fault Notice under Clause 3.2 EGT shall:-

            5.1.1 acknowledge receipt of the Fault Notice (such acknowledgement
                  confirming the time at which EGT received the Fault Notice for
                  the purposes of Clause 3.3);

            5.1.2 If it requires the assistance of the User under Clause 3.4 so
                  notify the User within ## MATERIAL OMITTED AND SEPARATELY
                  FILED UNDER A REQUEST FOR CONFIDENTIAL TREATMENT ## of receipt
                  of the Fault Notice;


                                      -48-
<PAGE>   51

                             CONFIDENTIAL TREATMENT

            5.1.3 use its reasonable endeavours, including the use of any test
                  equipment which EGT considers appropriate, to locate the cause
                  of the Disruption within the Section and notify the User with
                  an estimate of when in EGT's opinion the Services are likely
                  to be re-instated;

            5.1.4 within ## MATERIAL OMITTED AND SEPARATELY FILED UNDER A 
                  REQUEST FOR CONFIDENTIAL TREATMENT ## of notifying the User of
                  the location of the fault or defect notify the User if the
                  User is required to give assistance under Clause 3.6.

            5.1.5 update the User on an hourly basis of progress in resolving
                  the Fault Notice.

      5.2   Subject to Clause 3.5.6 and Clause 5.3 upon receipt of a Fault
            Notice EGT shall complete Corrective Maintenance within the Time
            Limits specified in Schedule 1.

      5.3   In respect of fibre maintenance EGT may make a Temporary Repair
            using whatever techniques it considers to be suitable to remedy a
            Disruption providing that it advises the User of the likely impact
            if any of such Temporary Repair on the quality of the Services and
            the parties agree on such measures of performance during such
            Temporary Repair. Thereupon EGT and the User shall agree a time to
            complete a Permanent Repair (each Party shall act reasonably in this
            respect). Such works in completing a Permanent Repair shall be
            carried out as Planned Work.

      5.4   For the avoidance of doubt in respect of a Disruption remedied by a
            Temporary Repair for the purpose of calculating time elapsed under
            the Time Limit in Clause 5.2 Corrective Maintenance shall be deemed
            to have been completed upon issue of the Notice referred to in
            Clause 7.1.2.

      5.5   EGT may restore the Services by repairing or substituting
            alternative Interface Equipment, Network equipment, cables,
            conductors or optical fibres provided that the Services when so
            restored comply with the Performance Specification and provided EGT
            issues the User with revised drawings, specifications and test
            results as appropriate for the User to enjoy the Services.

      5.6   For the purpose of calculating time elapsed in respect of any Time
            Limit under this Schedule each Party shall keep, maintain and upon
            request disclose to the other Party proper written records of the
            following periods:

            5.6.1 any period during the Time Limit where the User shall have
                  been in default of this Agreement;


                                      -49-
<PAGE>   52

            5.6.2 any period wherein EGT was unable to perform its obligations
                  contained in this Schedule due to an act or omission of the
                  User (which shall include any delay by the User in performing
                  any of its obligations under this Schedule);

            5.6.3 any period during which an event of Force Majeure prevents
                  Corrective Maintenance being carried out.

6     PLANNED WORK

      6.1   Before EGT carries out any Planned Work to the Network or Interface
            Equipments, EGT shall give the User notice of such Planned Work as
            follows:-

            6.1.1 for Planned Work to the Network or Interface Equipments not
                  involving an interruption to the Services EGT shall give three
                  working days notice of the commencement of the work;

            6.1.2 should it be necessary for Planned Work to involve
                  interruption to the Services EGT shall give the User as much
                  notice as it is reasonably able to give but in any event not
                  less than 30 days notice of the commencement of such Planned
                  Work and the User shall afford all assistance to EGT to enable
                  the work to commence on the planned date and for it to be
                  completed efficiently;

            6.1.3 Planned Work undertaken in order to complete a Permanent
                  Repair under Clause 5.3 hereof shall be carried out at the
                  time agreed by the Parties in accordance with Clause 5.3
                  hereof.

      6.2   For the avoidance of doubt, a Planned Outage which lasts longer than
            has been scheduled shall be treated as a Disruption for the
            remainder of its duration.

      6.3   EGT shall not arrange for Planned Outages on both Routes at the same
            time under any circumstances; subsequent Planned Outages shall be at
            least 3 working days apart. Furthermore, EGT shall use reasonable
            endeavours not to implement any Planned Outage when the User
            notifies EGT that there is or is likely to be an isolation of one of
            the User's nodes (bearing in mind the impact on EGT's Network of
            carrying out the works against the impact of delaying the works
            until the outage on the User's Network is repaired).

      6.4   For the purpose of calculating time elapsed during a Planned Outage,
            Planned Work shall be deemed to have commenced at the time agreed
            between the parties under Clause 6.1.3 hereof and ended on issue of
            a notice under Clause 7.1.2 hereof.


                                      -50-
<PAGE>   53

7     SERVICE ACCEPTANCE TESTS

      7.1   Upon completion of Corrective Maintenance whether by Temporary
            Repair or Permanent Repair or on completion of Planned Work to the
            Network or Interface Equipment EGT shall:-

            7.1.1 carry out Acceptance Tests in accordance with Clause 8 of the
                  Technical Definition at Appendix A to Schedule 1; and

            7.1.2 upon satisfactory completion of the Acceptance Tests issue a
                  Notice to the User of the results of such tests.

      7.2   For the purposes of calculating time elapsed under any Time Limit
            contained in Clause 5.2 Corrective Maintenance shall be deemed to
            have commenced on issue of a valid notice under Clause 4.2 and been
            completed upon issue of the Notice referred to in Clause 7.1.2.

      7.3   Any dispute under this Clause 7 in relation to any matter in
            connection with Acceptance Tests shall be referred to the Expert in
            accordance with the Agreement.

8     CONTROL, IMPLEMENTATION AND EXECUTION OF THE SERVICES

      8.1   EGT and the User shall nominate suitably skilled and equipped staff
            with responsibility for the reporting control implementation
            execution and review of the maintenance and support provided under
            this Schedule for the Services.

      8.2   Regular meetings shall take place between the Parties to monitor the
            operation of this Schedule amid to revise where and when necessary
            the Support and Maintenance Operating Procedures which will be
            agreed between the parties prior to the Provision Date.

9     ACCOMMODATION MAINTENANCE

      9.1   EGT shall ensure that, at all times, the Terminal Stations and
            Regenerator Sites are kept in a good state of repair.

      9.2   EGT shall and the User shall to the extent that it is within its
            control take proper precautions to ensure that, at all times, the
            Terminal Stations and Regenerator Sites are kept clean and tidy and
            in conformity with all applicable health and safety standards and
            free from environmental hazards such as flammable materials and
            asbestos or other hazards which may reasonably be held to present a
            risk to any equipment or to persons working on or inspecting such
            equipment.


                                      -51-
<PAGE>   54

      9.3   EGT shall monitor and give notice to the User of any environmental
            or other incidents which are likely to have an immediate or
            potential effect upon the User Equipment and/or the Services.

      9.4   EGT shall keep the Terminal Stations and Regenerator Sites secure at
            all times and ensure that only persons authorised under this
            Agreement and persons authorised by EGT shall have access to those
            sites.

      9.5   EGT shall install or permit the User to install or have installed at
            the Terminal Stations and regenerator sites alarm systems for
            detection of smoke, temperature changes, water presence and other
            similar events.

      9.6   Where EGT fails to provide the accommodation maintenance in
            accordance with this Clause, without prejudice to the User's other
            rights and remedies, EGT shall permit and enable the User to provide
            such maintenance.

10    PRIORITY OF RESTORATION

      10.1  EGT shall give at least equal priority to the restoration of Links
            on the Network as it gives to restoration of its own services and
            those provided to EGT's other Customers

      10.2  EGT represents to the User that all Maintenance provided by EGT to
            the User under this Agreement are provided at prices and upon terms
            and service levels that are no less favourable in aggregate to the
            User than the prices, terms and service levels offered to its most
            favoured customers for substantially similar services. EGT will
            improve its service levels as necessary to remain in compliance
            with the commitment on a going forward basis.

11    USER'S CABLE MAINTENANCE

      11.1  EGT shall provide maintenance to the User's network from the
            Terminal Stations to the User's beach manhole in accordance with the
            terms of this Schedule provided that:

           11.1.1 the User shall provide to EGT all spare cable to be used for
                  maintenance;

           11.1.2 EGT shall store the spare cable in a secure location on an
                  EGT Site, the exact site to be agreed between the Parties;

           11.1.3 the User shall provide 1 day of training for up to 15 persons
                  to EGT on maintenance of the land/subsea cable joints;


                                      -52-
<PAGE>   55

           11.1.4 the user shall pay to EGT its costs incurred in carrying out
                  this maintenance activity. The payment terms in Schedule 2
                  Clause 6 shall apply. 

12    LIABILITY

      12.1  For the avoidance of doubt the liability of the Parties under this
            Schedule shall be limited in accordance with the Clauses of the
            Agreement as if the same had been expressly set out herein.


                                      -53-

<PAGE>   56

    APPENDIX 1 TO SCHEDULE 4 - SUPPORT AND MAINTENANCE OPERATING PROCEDURES

To be agreed between the Parties prior to the earliest Provision Date under the
Agreement.


                                      -54-

<PAGE>   1

                             CONFIDENTIAL TREATMENT

                                 Exhibit 10.12

Note: Portions of this Exhibit have been omitted pursuant to a request for
confidential treatment filed with the SEC under Rule 406. The omitted
confidential material has been filed separately with the SEC. The location of
the omitted confidential information is indicated herein by a legend stating, 
"MATERIAL OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR CONFIDENTIAL
TREATMENT."

SNCB/NMBS Fibre Agreement                                           Confidential

                             Dated 16 January 1997

                                (1)      SOCIETE NATIONALE DES CHEMINS DE FER
                                         BELGES S.A. DE DROIT PUBLIC / NATIONALE
                                         MAATSCHAPPIJ DER BELGISCHE SPOORWEGEN
                                         N.V. VAN PUBLIEK RECHT

                                (2)      HERMES EUROPE RAILTEL B.V.


                                                     FIBRE AGREEMENT
<PAGE>   2

SNCB/NMBS Fibre Agreement                                           Confidential

                                    CONTENTS
1.  Definitions                                                                4
2.  Provision and Use of Railway Fibre                                         9
3.  Term                                                                       9
4.  Charges                                                                    9
5.  Standards of Fibre and Equipment                                          10
6.  Connection to the Fibre                                                   11
7.  Acceptance Tests                                                          11
8.  Approvals and Authorisations                                              12
9.  Cuts and Degradation                                                      13
10. Planned Works                                                             15
11. Back-up Provision                                                         15
12. Provision of Bandwidth                                                    16
13. Railway Fibre Forecasts and Railway Fibre Ordering Procedures             16
14. Warranties                                                                16
15. Liability                                                                 18
16. Insurance                                                                 19
17. Exoneration                                                               19
18. Assignment and Transfer                                                   20
19. Review                                                                    21
20. Events of Default                                                         21
21. Suspension                                                                22
22. Termination                                                               23
23. Not used                                                                  24
24. Project Management and Dispute Resolution                                 24
25. Provision of Information and Confidentiality                              24
26. Notices                                                                   25
27. Waivers and Variations                                                    26
28. Entire Agreement                                                          26
29. Severability                                                              26
30. No Partnership                                                            26
31. Proper Law                                                                26
32. Obligations                                                               27

SCHEDULES:
1. Fibre Description, Service Levels And Interface Standards                  28
2. Railway Fibre Ordering Procedures                                          30
3. Charges, Billing, Payments And Credits                                     31
4. Dispute Resolution                                                         33
5. Provision Of Bandwidth                                                     35
6. Disclosure Against Warranties                                              42

ANNEXES
1. Optical Cable Specifications and testing for the Hermes Network (Issue 6.0)
2. Technical Specification for the Provision of Services

                                                                         2 of 42
<PAGE>   3

SNCB/NMBS Fibre Agreement                                           Confidential

Dated 16 January 1997

PARTIES:

(1)   SOCIETE NATIONALE DES CHEMINS DE FER BELGES SA DE DROIT PUBLIC/ NATIONALE
      MAATSCHAPPIJ DER BELGISCHE SPOORWEGEN NV VAN PUBLIEK RECHT ("the
      Participating Railway") an autonomous public enterprise, whose office is
      at rue de France 85, 1060 Brussels; and

(2)   HERMES EUROPE RAILTEL B.V. ("HER") a corporation organised and existing
      under the laws of the Netherlands whose registered office is at
      Drentestraat 20, 1083 HK, Amsterdam, Netherlands.

INTRODUCTION:

(A)   The Railway Fibre is owned by the Participating Railway and in the public
      domain.

(B)   HER intends to develop and operate a pan-European telecommunications
      network, that will run primarily along the route of railway lines for the
      transport of international telecommunications traffic as a Carriers'
      Carrier.

(C)   On [   ] 1996, the Parties together with the Supplier entered into an
      agreement ("the Railway Framework Agreement") under which the
      Participating Railway agreed, amongst other things, to provide dark fibre
      to HER to be used in connection with the HER Network.

(D)   The Fibre Agreement sets out the detailed terms now agreed between the
      Parties in relation to the provisions of Railway Fibre.


                                                                        3 of 42
<PAGE>   4
SNCB/NMBS Fibre Agreement                                           Confidential

AGREED TERMS:

1.    Definitions

      Unless the context requires otherwise, in this Agreement the following
      terms shall have the meaning set out against them below:

      "Acceptance Tests"      the tests described in the Annex which are to be  
                              carried out in accordance with the procedures also
                              described in the Annex;                           
                              
      "Affiliate"             in the case of a party:
                              
                              (a)   any company over which it has a Controlling 
                                    Interest;                                   
                                                                                
                              (b)   any company which has a Controlling Interest
                                    in that party (a holding company); or       
                                                                                
                              (c)   any company which has the same holding      
                                    company as that party;                      
                              
      "this Agreement"        this Fibre Agreement, the Schedules and the       
                              Annexes;                                          
                                                                                
      "Business Day"          Monday to Friday (inclusive) excluding any day    
                              which is a public holiday in Belgium;             
                                                                                
      "Calculation Month"     the month of March immediately preceding the      
                              Calculation Date referred to in Schedule 3;       
                                                                                
      "Carriers' Carrier"     a telecommunications operator solely concerned    
                              with the carriage of telecommunications traffic   
                              for and on behalf or other (licensed or otherwise 
                              authorised) telecommunications operators;         
                                                                       
      "Charges"               the charges to be paid in respect of the Railway  
                              Fibre and maintenance services as set out in      
                              Schedule 3;                                       

                                                                    Page 4 of 42

<PAGE>   5

SNCB/NMBS Fibre Agreement                                           Confidential

"Confidential Information"    any information in any form which is identified at
                              the time when it is disclosed as being
                              confidential or is by its nature confidential and
                              including Confidential Information which has
                              already been disclosed by either party to the
                              other prior to the date of this Agreement
                              including pre-contractual correspondence, but
                              excluding:

                              (a)  information which is in the public domain 
                                   other than by reason of a breach of this 
                                   Agreement;

                              (b)  information which is previously known to the 
                                   other party to whom it is disclosed at the 
                                   time of its receipt other than in breach of 
                                   this Agreement; and

                              (c)  information which is independently developed 
                                   or discovered at any time by or for the 
                                   party to whom it is disclosed;

"Controlling Interest"        (a)  holding a majority of the voting rights; or

                              (b)  being a member of the company with a right to
                                   appoint or remove a majority of that
                                   company's board of directors;

                              the credits which fall due to HER where the
                              Railway Fibre is Cut or suffers from Degradation;
"Credits"
                              network terminating equipment and other equipment
                              as may be required based on customers needs used
"Customer Equipment"          by HER customers in order to pass messages from
                              the customer network to the HER Network;

                              unavailability of Railway Fibre for the
                              transmission of Messages for more than five
"Cut"                         minutes other than due to a Planned Outage;

                              failure of the Railway Fibre to conform with the
                              Optical Specification of Annex I, other than for
"Degradation"                 reasons of a Cut or a Planned Outage;
                                                                                
                                                                                
                                                                    Page 5 of 42
<PAGE>   6
SNCB/NMBS Fibre Agreement                                           Confidential

"Design Report"               the Phase 1 Design Report and any other report
                              prepared by the Supplier with the assistance of
                              the Participating Railway for each network build
                              out phase of the HER Network detailing network
                              implementation works by country;

"Disaster Recovery Plan"      a plan to be agreed jointly between the parties to
                              identify the procedures that will be complied with
                              by Participating Railway in the event of a Cut or
                              Degradation to ensure that the Service Levels are
                              complied with; including but not limited to:

                              -  fault reporting;

                              -  supply and provision of temporary fibre;

                              -  engineer availability and response times;

"Failure to Maintain"         a serious diversion from the Disaster Recovery
                              Plan by the Participating Railway whereby:

                              (a)  a Cut occurs, or is not repaired within the
                                   Service Levels; and

                              (b)  there is an isolation of a Multiplexor node 
                                   on the HER Network;

"Facilities Agreement"        an agreement dated [   ] entered into between HER
                              and the Participating Railway for the provision of
                              rights and facilities to house HER Equipment and
                              other equipment;

"Fibre Description"           the technical description of the Fibre set out in
                              Schedule 1;

"HER Equipment"               all equipment (other than HER Fibre) owned by HER
                              or provided to HER by a third party forming part
                              of the HER Network, including optical connectors
                              from HER transmission equipment to Railway Fibre;

"HER Fibre"                   optic fibre owned by HER, or provided to HER by a
                              third party which is to be connected with the
                              Railway Fibre in the development of the HER
                              Network;
                                                                    Page 6 of 42
<PAGE>   7

SNCB/NMBS Fibre Agreement                                           Confidential

"HER Network"                 the integrated pan-European trunk
                              telecommunications network to be developed by HER
                              comprising of fibre optic cables laid primarily
                              along railway tracks in Europe and including the
                              Railway Fibre, HER Fibre and HER Equipment;

"Index"                       the health index for Belgium as published by
                              Staatsblad Financ. Econ. Tijd or any other
                              official publication used for labour costs in
                              Belgium substituted therefor;

"Interface Standards"         the technical standards set out in Schedule 1 with
                              which the "HER Fibre, the Railway Fibre and HER
                              Equipment must comply in order for there to be
                              full connectivity and interoperability of the HER
                              Network and the Participating Railway Network and
                              to enable them to be connected at the Points of
                              Connection;

"Licences"                    all licences approvals and authorisations required
                              under local, national, European or international
                              laws;

"Link"                        a physical link between two Points of Connection
                              by use of Railway Fibre;

"Message"                     speech, sounds, data, visual images and any other
                              signals serving to impart any matter;

"National Centre"             The Participating Railways single point of contact
                              for HER as further specified in the Facilities
                              Agreement;

"NOC"                         the HER Network Operations Centre located at
                              Terhulpsesteenweg, 6A - 1560 Hoeilaart or such
                              other address as HER may notify the Participating
                              Railway from time to time;

"Planned Outage"              unavailability of the Railway Fibre for the
                              Transmission of Messages due to Planned Works of
                              the Railway Fibre which does not exceed one hour;

"Planned Works"               planned works or maintenance of the Railway Fibre
                              or the cable containing Railway Fibre or planned
                              alteration to the Participating Railway fibre
                              network;
                                                                    Page 7 of 42
<PAGE>   8

SNCB/NMBS Fibre Agreement                                           Confidential

"Points of Connection"        one or more physical points at which the HER Fibre
                              or HER Equipment is no be connected no the Railway
                              Fibre;

"Railway Fibre"               optical dark fibre provided by the Participating
                              Railway to HER and described in Schedule 1.
                              Railway Fibre extends to and includes the fibre
                              terminating equipment owned by the Participating
                              Railway and may include optical connectors as
                              specified in Schedule 1 for border crossing
                              points;

"Railway Fibre                an order for Railway Fibre given by HER to the    
 Order"                       Participating Railway in accordance with Schedule 
                              2;                                                

"Ready for Service"           trackside lands and other property, buildings and
                              structures including, without limitation, tracks,
                              gutters, ducts, gantries, poles, accommodation,
                              buildings power and telecommunications facilities
                              and storage areas owned by the Participating
                              Railway over or through which HER and the Supplier
                              and their respective employees and agents may
                              reasonably wish to have access in order to benefit
                              from this Agreement and any other land over which
                              the Participating Railway has sufficient rights
                              from time to time to permit or procure access for
                              such purposes;

"Railway Lands"               the date on which the parties have signed the
                              Certificate of Readiness provided for in Clause 7
                              certifying that the Railway Fibre is available and
                              complies with the Fibre Description;

"Relevant Equipment"          HER Equipment and Customer Equipment;

"Service Levels"              the service levels set out in Schedule 1 in
                              accordance with which the Railway Fibre must be
                              provided; and

"The Supplier"                Alcatel Bell N.V., a Belgian company whose
                              registered office is at Francis Wellesplein 1,
                              2018 Antwerp, Belgium, Alcatel Italia S.p.A. an
                              Italian company whose registered office is at
                              33/39 Viale Luigi Bodio, 20158 Milan, Italy; and
                              Alcatel Contracting S.A. a French

                                                                    Page 8 of 42
<PAGE>   9

                          CONFIDENTIAL TREATMENT

SNCB/NMBS Fibre Agreement                                           Confidential

                              company whose registered office is at 30, Rue des
                              Chasses 92111 Clichy, France.

2.    Provision and Use of Railway Fibre

2.1   The Participating Railway shall provide to HER the Railway Fibre in
      accordance with the provisions of this Agreement and in particular the
      provisions of Schedule 1.

2.2   The Participating Railway agrees that only HER shall have the right to use
      the Railway Fibre referred to in Schedule 1.

2.3   Subject to Clause 12, in relation to traffic into and out of Belgium, HER
      is only enabled to provide cross-border managed bandwidth contracting as a
      Carriers' Carrier.

2.4   Subject to Clause 10, the Participating Railway shall not interfere with
      or disrupt HER's right to use the Railway Fibre.

2.5   This Agreement shall not transfer to HER any right, title or interest in
      the Railway Fibre other than the right to use the Railway Fibre in
      accordance with this Agreement.

3.    Term

3.1   This Agreement shall commence on date of signature and shall continue for
      a period of ## MATERIAL OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR
      CONFIDENTIAL TREATMENT ## or until terminated in accordance with the
      provisions of Clause 22.

3.2.1 HER and the Participating Railway agree that ## MATERIAL OMITTED AND
      SEPARATELY FILED UNDER A REQUEST FOR CONFIDENTIAL TREATMENT ## from the
      date of the signing of this Agreement the parties will commence good faith
      negotiations on a reasonable basis and use reasonable endeavours to renew
      this Agreement.

3.2.2 In the event that HER and the Participating Railway fail to reach an
      agreement by the expiry of this Agreement the parties agree that there
      shall be no referral to any form of dispute resolution and this Agreement
      will terminate in accordance with the provisions of Clause 22.

4.    Charges

4.1   HER agrees to pay to the Participating Railway the Charges set out in
      Schedule 3 in the manner and on the dates provided for in Schedule 3.
      Charges are exclusive of any value

                                                                    Page 9 of 42
<PAGE>   10
SNCB/NMBS Fibre Agreement                                       Confidential

      added or sales tax due and payable in relation to the same. No sales tax
      will become due until a valid sales tax invoice is received.

4.2   Liability for payment of Charges shall begin one month after when the
      Railway Fibre is Ready for Service.

4.3   The Charges for maintenance of the Fibre shall be reviewed at the times
      and in accordance with the indexation procedures set out in Schedule 3.

4.4   All sums due or payable by either party under this Agreement shall be paid
      free and clear of any deduction or withholding except as may be required
      by law.

4.5   HER shall indemnify the Participating Railway against all taxes which are
      now or may be payable in respect HER's right to use of the Railway Fibre
      excluding any tax (other than sales tax) assessable on the Participating
      Railway in respect of the Charges or on the sale of the Railway Fibre or
      on assignment of this Agreement.

4.6   HER shall pay the fees referred to in Clause 8.1 for licences and
      authorisation to the manner and extent set out in that Clause.

5.    Standards of Fibre and Equipment

5.1   HER shall ensure that the HER Fibre and HER Equipment and the
      Participating Railway shall ensure that the Railway Fibre comply with the
      requirements and Interface Standards set out in part 3 of Schedule 1.

5.2   It is acknowledged by the parties that Interface Standards may vary from
      time to time. Schedule 1 may be amended to reflect technical and
      operational requirements of the parties or changes in industry standards
      from time to time by agreement between the parties or, failing such
      agreement, in accordance with the dispute resolution procedures under
      Clause 24.

5.3   The Participating Railway agrees that the Railway Fibre shall perform in
      accordance with the Service Levels throughout the term of this Agreement.

                                                                   Page 10 of 42

<PAGE>   11
SNCB/NMBS Fibre Agreement                                       Confidential

6.    Connection to the Fibre

6.1   The HER Fibre and/or HER Equipment and the Railway Fibre shall be
      connected at the Points of Connection. Such work to be carried out by or
      on behalf of HER at its own risk. Any HER fibre on Railway Land shall
      comply with regulation 2444C.

6.2   In order to enable connection of the Railway Fibre and HER Equipment, the
      Participating Railway shall ensure that the Railway Fibre (including
      terminators and connectors) is fully prepared to be connected to HER
      Equipment without necessity for HER or the Supplier to carry out any
      further works to the Railway Fibre or Railway Lands prior to attaching it
      to the HER Equipment or HER Fibre.

6.3   Where HER provides its own accommodation for HER Equipment, the
      Participating Railway shall to the extent it is able to do so grant HER
      sufficient rights to connect the Railway Fibre to HER Equipment.

7.    Acceptance Tests

7.1   The Participating Railway will use its best endeavours to ensure that the
      Railway Fibre is available for Acceptance Tests by the dates set out in
      the Railway Fibre Order.

7.2   The Participating Railway small permit HER or its Supplier and their
      respective sub-contractors agents and employees access to the Railway
      Fibre at the Points of Connection to carry out Acceptance Tests of the
      type and in accordance with the procedure set out in the Annex.

7.3   HER will procure that the Supplier shall carry out the Acceptance Tests in
      the presence of the Participating Railway and HER and/or their agents.

7.4   On satisfactory completion of the Acceptance Tests, the test results
      sheets shall be produced to the Participating Railway for signature; these
      will be countersigned by the Supplier and approved by HER. The
      Participating Railway and HER shall then each sign a Certificate of
      Readiness following which the Railway Fibre shall be deemed Ready for
      Service. A copy of the Certificate of Readiness, together with test
      results will be supplied to the Participating Railway.

7.5   If the Acceptance Test ("the Initial Acceptance Test") is not
      satisfactorily completed, the parties agree to cooperate in order to
      identify the cause of the failure of the Acceptance Test

                                                                   Page 11 of 42
<PAGE>   12
SNCB/NMBS Fibre Agreement                                       Confidential

      and to make all reasonable efforts to resolve the problem without delay.
      Once the problem has been resolved, the parties shall carry out the
      Acceptance Tests ("the Further Acceptance Tests") in accordance with the
      provisions of the Annex.

7.6   If the cause of the failure of the Acceptance Tests has not been
      identified within 5 Business Days of the date upon which the Initial
      Acceptance Tests failed to be satisfactorily completed both parties shall
      use their best endeavours to identify suitable alternative Railway Fibre
      (which itself shall be subject to Acceptance Testing under this Clause).

7.7   The costs of further Acceptance Test should be borne equally between the
      parties.

8.    Approvals and Authorisations

8.1.1 The Participating Railway shall use best endeavours to obtain and renew
      any Licences required in order to provide Railway Fibre and fulfil its
      obligations under this Agreement and shall comply with all of their terms
      to be observed on its part. If despite using its best endeavours the
      Participating Railway fails to obtain such Licences or if they are revoked
      in shall not face any claim for loss damage or compensation from HER;

8.1.2 The Participating Railway shall on a continuing basis consult with HER on
      its strategy for obtaining the Licenses and to the extent that a licence
      fee, tender prices or similar payment is due for the Licences inform HER
      of the amount of such fee and use best endeavours to reduce the amount of
      such fee;

8.1.3 Subject to sub-clauses 8.1.2 and 8.1.4 HER shall indemnify the
      Participating Railway against any fee, tender price or similar payment (or
      a reasonable part of it) or payment for universal service which is clearly
      identifiable prior to obtaining the licence as solely relating to the
      provision by the Participating Railway of the Railway Fibre to HER;

8.1.4 Failure by HER to comply with its obligation to indemnify the
      Participating Railway under sub-clause 8.1.3 within 30 days of demand
      shall entitle the Participating Railway (during the following 30 days) to
      terminate this Agreement immediately without either party having further
      recourse for breach of this Clause 8.1 other than for all reasonable
      administrative costs and expenses incurred in complying with this clause
      8.1. On termination Clause 22.2 shall apply. If the Participating Railways

                                                                   Page 12 of 42
<PAGE>   13
SNCB/NMBS Fibre Agreement                                       Confidential

      does non exercise this right to terminate this Agreement shall continue in
      full force and effect.

8.2   HER shall be responsible for compliance with all law, licences, approvals
      and other authorisations to be observed on its part relating to the use of
      the Railway Fibre for the conveyance of Messages over the HER Network and
      all other matters relating to its performance of this Agreement and will
      use best efforts to procure that its customers accept and abide by similar
      obligations in respect of the conveyance of Messages. Any evidence
      produced by HER's Customer of compliance with this obligation shall, if
      not in breach of HER's confidentiality requirements be notified to the
      Participating Railway.

8.3   The parties will consult with each other and provide each other with
      reasonable assistance in complying with their respective obligations under
      Clauses 8.1 and 8.2.

8.4   HER shall, in exercising its rights under this Agreement, comply with, and
      shall procure the compliance of HER's authorised agents and employees
      with, all railway industry procedures of general application of which the
      Participating Railway has previously provided sufficient information to
      allow compliance.

8.5   The parties agree that the Participating Railway has no responsibility for
      the content of Messages transmitted over the HER Network and HER shall
      indemnify the Participating Railway and hold in harmless against all
      direct liability, losses and damages incurred or suffered by the
      Participating railway arising out of any claims by third parties in
      respect of the content of transmitted Messages unless in any of the above
      cases such Messages were transmitted by or received from the Participating
      Railway and shall assist the Participating Railway in defending any action
      brought against it.

8.6   Notwithstanding the provisions relating to telecoms licences in Clause 8.1
      above, the Participating Railway shall, an its own expense, use best
      endeavours to obtain all other necessary consents wayleaves and other
      rights as may be required from any third party in respect of the
      connection of the HER Fibre and HER Equipment with the Railway Fibre
      within Railway Lands. If despite using its best endeavours the
      Participating Railway fails to obtain such Licences or if they are revoked
      it shall not face any claim for loss damage or compensation from HER;

9.    Cuts and Degradation

                                                                   Page 13 of 42
<PAGE>   14
SNCB/NMBS Fibre Agreement                                       Confidential

9.1   The Participating Railway shall use all reasonable efforts to protect the
      Railway Fibre and minimise the likelihood of Cuts or Degradation occurring
      and shall provide maintenance services in order to ensure compliance of
      the Railway Fibre with the Fibre Description and Service Levels.

9.2   Where the Railway Fibre is Cut:

      (a)   the parties agree to report any faults occurring with the Railway
            Fibre to the other party as soon as reasonably practicable after
            they become aware of the same in accordance with fault reporting
            procedures. These procedures will be agreed between the parties
            before any Railway Fibre is Ready for Service and updated from time
            to time;

      (b)   the Participating Railway agrees to use its best endeavours to
            restore full availability of the Railway Fibre (either by repair or
            replacement) as soon as reasonably possible and in accordance with
            the Service Levels and (when available) the Disaster Recovery Plan;
            and

      (c)   HER shall be entitled to Credits in accordance with the provisions
            of Schedule 3.

9.3   Where the Railway Fibre is not performing to the Optical Specification:

      (a)   HER shall notify the National Centre as soon as it is aware of any
            interference with Message which is reasonably believes arises from
            Degradation of the Railway Fibre in accordance with Clause 9.2(a);

      (b)   upon receipt of such notice the Participating Railway shall carry
            out an Optical Time Domain Reflection, (OTDR), Test to test the
            Railway Fibre for Degradation. The OTDR test shall be carried out
            under the supervision of HER and shall be treated as a Planned
            Outage;

      (c)   the Participating Railway shall immediately pass the test results to
            HER who shall have the right to review them;

      (d)   if the test shows no Degradation HER shall reimburse to the
            Participating Railway the cost of carrying out the test;

      (e)   if the test results show Degradation the Credits shall be deducted
            from the Charge from the date of the test until the Degradation is
            repaired (except for any period during which suitable alternative
            fibre is provided under Clause 11);

                                                                   Page 14 of 42
<PAGE>   15
SNCB/NMBS Fibre Agreement                                       Confidential

      (f)   the Participating Railway shall use its best endeavours to repair
            Degradation;

      (g)   repair of Degradation shall only be proved by the Participating
            Railway by the carrying out of a test in accordance with Clause
            9.3.(b); and

      (h)   for the avoidance of doubt if there is Degradation on the Railway
            Fibre to the extent that it becomes unavailable for the transmission
            of Messages the Degradation shall be treated as a Cut and Clause 9.2
            shall apply.

10.   Planned Works

10.1  The Participating Railway shall give HER (at the NOC) at least 30 calendar
      days advance written notice of Planned Works.

10.2  The notice under Clause 10.1 shall state the place, time, date and
      duration of the Planned Works and the nature effect and technical details
      of the potential impact on the HER Network.

10.3  The parties shall work together to reduce the potential impact of the
      Planned Works on the HER Network and the Participating Railway shall
      continue to provide information on the manner in the notice to HER.

10.4  For the avoidance of doubt the unavailability of Railway Fibre due to
      Planned Works shall be treated as Cut from the moment in exceeds the
      duration of 1 hour and Clause 9.2 shall apply.

11.   Back-up Provision

11.1  Where the Participating Railway is unable to restore full availability of
      Railway Fibre under sub-clause 9.2(b), or where a test of Degradation
      fails under sub-clause 9.3(b), it shall use its best endeavours to provide
      temporary fibre (with cable from spare stock) for the entire period of the
      Cut or Degradation.

11.2  Where it is not possible to restore full availability of the Railway Fibre
      in accordance with the Service Levels or cure the Degradation and no
      suitable temporary fibre is provided under Clause 11.1 or the temporary
      fibre does not meet the requirements of Schedule 1, the Participating
      Railway agrees to use its best endeavours to provide to HER, as soon as

                                                                   Page 15 of 42
<PAGE>   16
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      practicable and at no additional cost to HER, suitable alternative Railway
      Fibre which meets all the requirements provided for in Schedule 1. If
      suitable alternative Railway Fibre is not provided HER shall have the
      right to terminate or suspend this Agreement in accordance with Clauses 20
      to 22.

12.   Provision of Bandwidth

      HER shall provide the Participating Railway with managed bandwidth on the
      HER Network strictly in accordance with Schedule 6.

13.   Railway Fibre Forecasts and Railway Fibre Ordering Procedures

13.1  HER shall provide the Participating Railway with fibre forecasts from time
      to time showing its requirements for fibre in the future. These shall be
      used for planning purposes only.

13.2  Railway Fibre Orders shall be made in accordance with the procedure set
      out in Schedule 2.

14.   Warranties

14.1  The Participating Railway warrants to HER that:

      (a)   It is a company duly incorporated and validly existing in all
            respects under the laws of the jurisdiction of its incorporation,
            with full power and authority to own its assets to carry on its
            business as it is now being conducted;

      (b)   No action is being taken or threatened whether by it or any third
            party for or with a view to its liquidation, receivership or
            analogous process;

      (c)   Subject to Clause 32, it has the right:

            (i)   to enter into this Agreement;

            (ii)  to grant all rights provided for under this Agreement;

            (iii) to permit HER to connect HER Fibre to Railway Fibre in order
                  to construct the HER Network;


                                                                   Page 16 of 42
<PAGE>   17

SNCB/NMBS Fibre Agreement                                          Confidential

      (d)   The Participating Railway has not already granted these rights on
            any exclusionary basis to any third party that would prevent HER
            from having the benefit of these rights;

      (e)   The execution of this Agreement is being validly authorised and the
            obligations expressed as being assumed by it under this Agreement
            constitute valid legal and binding obligations, enforceable against
            it in accordance with their respective terms except that under
            Belgian law the goods of the Participating Railway used for public
            service are not subject for enforcement;

      (f)   No provision of this Agreement is in any way inconsistent with its
            constitution (or that of any Affiliate);

      (g)   it is fully licensed and authorised to lay cable within which
            Railway Fibre is provided and in particular in all places where
            Railway Fibre is provided under this Agreement and has sufficient
            rights to enter the land surrounding the existing cable in order to
            properly maintain it in accordance with the terms of this Agreement;
            and

      (h)   subject to Schedule 6, in is not aware of any contracts, licences,
            approvals or other authorisations relating to the Railway Fibre
            which materially and adversely affect the ability of HER to benefit
            from this Agreement.

14.2  HER warrants to the Participating Railway that:

      (a)   It is a company duly incorporated and validly existing in all
            respects under the laws of the jurisdiction of its incorporation,
            with full power and authority to own its assets to carry on its
            business as it is now being conducted;

      (b)   No action is being taken or threatened whether by it or any third
            party for or with a view to its liquidation receivership or
            analogous process;

      (c)   The execution of this Agreement is being validly authorised and the
            obligations expressed as being assumed by in under this Agreement
            constitute valid legal and binding obligations, enforceable against
            it in accordance with their respective terms; and

      (d)   No provision of this Agreement is in any way inconsistent with its
            constitution or with any Agreements with its shareholders.

                                                                   Page 17 of 42
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                             CONFIDENTIAL TREATMENT
SNCB/NMBS Fibre Agreement                                          Confidential

15.   Liability

15.1  Credits shall be deducted in respect of periods during which the Railway
      Fibre is Cut (whatever the cause of that Cut) or is subject to Degradation
      in accordance with the provisions of Schedule 3.

15.2  Nothing in this Agreement shall restrict the liability of either party for
      death or personal injury resulting from the negligence of that party or
      its employees acting in the course of their employment.

15.3  Subject to Clause 15.6 neither party shall be liable to the other in
      respect of any costs, claims, demands or damages that the other may
      sustain in connection with this Agreement or the provision of the Railway
      Fibre arising out of any claim brought or made against that other party by
      a customer of that other party.

15.4  Neither party shall be liable to the other in respect of any loss of
      revenue, business, contracts or profits or for any other indirect or
      consequential loss whatsoever, howsoever arising.

15.5  Subject to Clauses 15.1 to 15.4, each party shall fully indemnify the
      other in respect of all direct losses, costs, claims, demands and damages
      arising as a result of any breach of this Agreement such indemnity to be
      limited to the aggregate charges for a 12 months period in respect of any
      single incident or series of incidents arising out or single breach of
      this Agreement unless caused by the wilful default of the party breaching
      the Agreement.

15.6  In the event of a Failure to Maintain, the Participating Railway shall
      indemnify HER for any proven losses, costs, claims, demands and damages
      paid by HER to its Customers, such indemnity to be limited as follows:

      (a)   for each hour that there is Failure to Maintain ## MATERIAL OMITTED
            AND SEPARATELY FILED UNDER A REQUEST FOR CONFIDENTIAL TREATMENT ##

      (b)   for each incident of a Failure to Maintain - ## MATERIAL OMITTED AND
            SEPARATELY FILED UNDER A REQUEST FOR CONFIDENTIAL TREATMENT ## of
            the Charges for maintenance services; and

      (c)   in any 12 months period - the aggregate Charges for maintenance
            services for ## MATERIAL OMITTED AND SEPARATELY FILED UNDER A
            REQUEST FOR CONFIDENTIAL TREATMENT ##

                                                                   Page 18 of 42
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SNCB/NMBS Fibre Agreement                                          Confidential

15.7  The provisions of this Clause shall survive the termination of this
      Agreement.

16.   Insurance

16.1  Each party shall maintain for the duration of this Agreement fully
      comprehensive all risks (including professional indemnity) insurance or
      appropriate self insurance with a sum insured adequate to meet any claim
      arising under this Agreement and shall on demand, promptly produce written
      evidence of this insurance to the other party reasonably requesting that
      evidence from time to time.

16.2  Any insurance taken out by any party in relation to this Agreement shall
      include a waiver of subrogation rights by the relevant insurer against the
      other party under this Agreement.

16.3  Neither party shall do anything which might render void or voidable such
      insurance policies or cause the payment of any of such insurance policy
      money to be withheld solely or partly because of their act or omission.

16.4  If insurance moneys are withheld due to the act or omission of either
      party that party will pay, on demand, to the other all such irrecoverable
      sums.

17.   Exoneration

17.1. In this Agreement, "Event of Force Majeure" means any abnormal or
      overwhelming circumstances which (despite prudent management and
      operations) are beyond the control of the party affected and which prevent
      that party from fulfilling its obligations under this Agreement in a
      timely manner or in compliance with this Agreement, including any storm,
      tempest, fire, flood, snow, water, sabotage, riot, rebellion or government
      action (save to the extent that the government is acting as shareholder in
      the party in question) or industrial disputes by any person other than
      employees of the party claiming the benefit of Force Majeure or its
      Affiliates, but specifically excluding failures or delays on the part of
      the defaulting party, arising out of:

      (a)   any failure or delay on the part of any defaulting party or any
            sub-contractor engaged by the defaulting party which is not itself
            caused by Force Majeure; or

      (b)   shortages of fuel, supplies or services which are not themselves
            caused by Force Majeure.

                                                                   Page 19 of 42
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17.2  A party affected by an Event of Force Majeure or strike action by its
      employees shall use its best endeavours to minimise its effects.

17.3  No party shall be responsible for any failure to fulfil its obligations
      under this Agreement if, and only to the extent that such failure shall be
      caused by an Event of Force Majeure or strike action by its employees
      which makes in impossible or impractical for than party to comply with
      such obligations.

17.4  If a party considers than any Event of force Majeure has arisen or may
      arise, or that strike action by its employees is planned it shall
      immediately notify the other Party of its reasons and likely extent of the
      delay and the parties shall endeavour to find a means of avoiding the
      delay or disruption.

17.5  Credits shall remain payable in accordance with sub-clause 15.1 to be
      calculated in accordance with Schedule 3 and the Participating Railway
      shall comply with its maintenance obligations in Clause 9 notwithstanding
      the fact than a Cut or Degradation may be due to an Event of Force
      Majeure.

18.   Assignment and Transfer

18.1  The Participating Railway acknowledges that HER may only assign the
      benefit of this Agreement in whole or in part to any Affiliate which has
      particular responsibility for construction and/or operation of the Network
      in Belgium (such Affiliate to be 100% owned by HER; save for any directors
      qualifying shares), or to any successor of HER or its Affiliates, so long
      as the commercial, legal, and regulatory and ownership interests between
      the parties remain unchanged.

18.2  HER acknowledges that the Participating Railway may only assign this
      Agreement to any successor of the telecommunications operations of the
      Participating Railway, so long as the commercial, legal, and, regulatory
      obligations between the parties in relation to this Agreement remain in
      force.

18.3  Each party agrees to notify the others immediately upon organisational
      change which may result in assignment of all or any portions of this
      Agreement.

                                                               Page 20 of 42
<PAGE>   21
                             CONFIDENTIAL TREATMENT

SNCB/NMBS Fibre Agreement                                          Confidential

19.   Review

19.1  HER and the Participating Railway acknowledge that there are likely to be
      changes in circumstances which may impact upon the relationship between
      them and the provisions contained in this Agreement and which may require
      modifications to the services, facilities or rights provided or granted by
      one of them to the other under this Agreement. In recognition of this
      fact, HER and the Participating Railway agree that, not more than once in
      any year of this Agreement:

      (i)   either of HER or the Participating Railway may give written notice
            to the other setting out the details of the relevant change in
            circumstances together with the amendments proposed to be made to
            the Agreement;

      (ii)  within two weeks HER and the Participating Railway shall enter into
            good faith negotiations with a view to making appropriate amendments
            to the Agreement;

      (iii) if no agreement has been reached within three months from the
            commencement of negotiations, the matter shall be referred for
            determination in accordance with the Dispute Resolution Procedures
            contained in Clause 24 and Schedule 5 save that HER and the
            Participating Railway agree that the matter shall not be referred
            for determination by the courts;

      (iv)  if agreement cannot be reached under (iii) above the Agreement shall
            continue in force unamended.

20.   Events of Default

20.1  The following shall be an Event of Default:

      (a)   Breach of Agreement 
            A material breach of the terms of this Agreement committed by either
            Part.

      (b)   Unavailability or Degradation or Railway Fibre
            Any Railway Fibre is Cut for a continuous period of ## MATERIAL
            OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR CONFIDENTIAL
            TREATMENT ## or there are ## MATERIAL OMITTED AND SEPARATELY FILED
            UNDER A REQUEST FOR CONFIDENTIAL TREATMENT ## of ## MATERIAL OMITTED
            AND SEPARATELY FILED UNDER A REQUEST FOR CONFIDENTIAL TREATMENT ##
            or more each in any ## MATERIAL OMITTED AND SEPARATELY FILED UNDER A
            REQUEST FOR CONFIDENTIAL TREATMENT ## period or suffers Degradation
            for a continuous period of ## MATERIAL OMITTED AND SEPARATELY FILED
            UNDER A REQUEST FOR CONFIDENTIAL TREATMENT ## beyond a test under
            Clause 9.

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<PAGE>   22

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20.2  The parties shall notify each other as soon as they become aware of an
      Event of Default.

21.   Suspension

21.1  Service of a Suspension Notice

      (a)   A party may serve a Suspension Notice on the other party ("the
            Receiving Party") where an Event of Default under sub-clauses
            20.1(a) has occurred to the Receiving Party and is reasonably
            capable of remedy;

      (b)   Without prejudice to its right to terminate under Clause 20 HER may
            also serve a Suspension Notice upon the Participating Railway if an
            Event of Default under sub-clauses 20.1(b) has occurred and is
            reasonably capable of remedy and it is agreed that HER shall be
            entitled to serve a Suspension Notice in respect of an Event of
            Default under sub-clause 20.1(b) even where the cause of Cut or
            Degradation is an Event of Force Majeure.

21.2  A Suspension Notice shall specify:

      (a)   the nature of the Event of Default (including, in respect of an
            Event of Default under Clause 20.1(b) details of the relevant
            Railway Fibre);

      (b)   the date and time at which Suspension is to take effect;

      (c)   the steps reasonably required to remedy the Event of Default;

      (d)   a reasonable period (of at least 90 days if the notice is served by
            the Participating Railway and an least 180 days if the notice is
            served by HER) for the defaulting party to remedy it; and

      (e)   the specific Links in respect of which this agreement is suspended.

21.3  Service of a Suspension Notice

      (a)   service of the Suspension Notice shall have the effect of suspending
            the operation of this Agreement to the extent specified in such
            Suspension Notice;

      (b)   the receiving party shall comply with any reasonable restrictions
            imposed on it in the Notice;

      (c)   without prejudice to any other remedies in this Agreement service of
            the Suspension Notice by the Participating Railway shall not affect
            the obligations to make payments under this Agreement;

                                                                Page 22 of 42
<PAGE>   23

SNCB/NMBS Fibre Agreement                                          Confidential

      (d)   without prejudice to any other remedies in this Agreement service of
            a Suspension Notice by HER shall result in the suspension of
            payments for the Railway Fibre during the suspension period;

      (e)   during the period of a Suspension Notice served by HER, HER shall
            continue to provide managed bandwidth along the Railway Fibre
            including that offered to the Participating Railway under Clause 12,
            unless prevented from providing any managed bandwidth by the
            Participating Railway's Event of Default.

21.4  The Receiving Party shall, with all reasonable diligence, take such steps
      as shall be reasonable and necessary to remedy the Event of Default and
      shall keep the serving party fully informed of the progress which is being
      made.

21.5  Where the Receiving Party has complied with the obligations in clause 21.4
      and it is reasonable for the Suspension Notice to be revoked the serving
      party shall revoke the Suspension Notice as soon as is practicable by
      notice in writing.

22.   Termination

22.1  A Party may terminate this Agreement in whole or with respect to specific
      Links:

      (a)   If the other party fails to comply with the terms of a Suspension
            Notice;

      (b)   If the other party breaches its obligation to remedy an Event of
            Default under clause 21.4; or

      (c)   except during the period of a Suspension Notice, if the other party
            has committed an Event of Default and it is continuing provided
            however that where an Event of Default is capable of remedy, a
            Suspension Notice has first been served to the other party;

      (d)   subject to Clause 20.2, if the party terminating has validly served
            notice to terminate the Facilities Agreement;

      on notice in writing on expiry of the cure period stated in the Suspension
      Notice (under clause 21.2(d)) or by 90 calendar days' notice in writing if
      the Event of Default is not

                                                                Page 23 of 42
<PAGE>   24

SNCB/NMBS Fibre Agreement                                          Confidential

      capable of remedy. In the case of a partial termination the notice shall
      specify the Links to which the termination shall apply.

22.2  The following shall apply on termination:

      (a)   save where termination has been invoked by the Participating Railway
            due to non payment of the price, this Agreement shall continue in
            force beyond termination to the extent that in relates to the
            provision of Railway Fibre which HER can demonstrate as necessary in
            order to be able to continue to fulfil obligations to its customers
            which are in force on the date of termination, up to a maximum
            period of eighteen (18) months; and

      (b)   termination or expiry of this Agreement shall not amount to a waiver
            of any breach by either party and shall be without prejudice to any
            liabilities or obligations of either party which have accrued up to
            the date of termination.

22.3  If either party has terminated only part of the Facilities Agreement so
      that certain Railway Fibre no longer forms part of the HER Network (and is
      unlikely to form part of the HER Network), they may also terminate this
      Agreement in respect of that Railway Fibre only. Subject to this, the
      obligations between the parties in respect of all other Railway Fibre
      shall remain in full force and effect.

23.   Not used

24.   Project Management and Dispute Resolution

24.1  Each of the parties shall appoint a Project Manager to act as that party's
      representative and prime point of contact in relation to all day-to-day
      matters arising in connection with this Agreement. Each Project Manager
      shall have the power to commit his principal on day-to-day matters; but he
      shall not have the right to vary the terms of this Agreement.

24.2  Any dispute in relation to any matter between the parties arising pursuant
      to this Agreement shall be determined in accordance with the provisions of
      Schedule 5.

25.   Provision of Information and Confidentiality

                                                                   Page 24 of 42

<PAGE>   25

                             CONFIDENTIAL TREATMENT

SNCB/NMBS Fibre Agreement                                          Confidential

25.1  Subject to the party in question having the necessary rights in respect of
      relevant intellectual property rights and being free of any obligation of
      confidentiality, each party shall provide to the other information about
      matters which are relevant to the connection of the Railway Fibre and the
      HER Fibre and/or Equipment and the provision of the Railway Fibre under
      this Agreement as the other party shall reasonably require at no charge to
      the other party to the extent that the information is necessary in order
      for that party to perform its obligations under this Agreement and to
      benefit from this Agreement.

25.2  Each party will endeavour to ensure that the information provided to the
      other party under this Agreement is correct to the best of its knowledge
      at the time when it is provided.

25.3  Where a party to this Agreement (the "Disclosing Party") provides to the
      other party (the "Receiving Party") Confidential Information, the
      Disclosing Party shall ensure that before doing so it has all necessary
      consents as may be required in order to disclose the information.

25.4  The Receiving Party shall keep in confidence all Confidential Information
      and will not (and will procure that its employees, directors and
      professional advisers will not) disclose that information to any third
      party.

25.5  The Receiving Party shall be entitled to disclose any Confidential
      Information to any of its employees, agents, directors, officers, legal
      representatives, consultants or authorised subcontractors or (if approved
      in writing by the Disclosing Party) any other third party provided that
      the recipient is bound by an undertaking in substantially the same terms
      as the provisions of this Clause 25.

25.6  Confidential Information shall only be used for the purposes for which it
      was disclosed and/or for the purposes of performing the obligations of the
      parties under this Agreement.

25.7  The obligations of Confidentiality in this Clause 25 shall continue for ##
      MATERIAL OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR CONFIDENTIAL
      TREATMENT ## following the termination of this Agreement for any reason or
      its expiry.

26.   Notices

26.1  Any Notice served pursuant to this Agreement shall be served personally or
      sent by pre-paid first class post, by facsimile or by any other method
      agreed between the parties including electronic transmission between the
      National Centre and the NOC.

                                                                   Page 25 of 42
<PAGE>   26

SNCB/NMBS Fibre Agreement                                          Confidential

26.2  All Notices and other documents served pursuant to this Agreement shall be
      sent to the Managing Director of HER or the Deputy Director of the
      Participating Railway at the respective addresses sent out on page 3 of
      this Agreement.

26.3  Notices served personally shall be deemed delivered on delivery, by post
      shall be deemed delivered three working days following posting and by
      facsimile shall be deemed delivered upon being sent but shall be confirmed
      by post. Suspension and Termination notices shall only be deemed delivered
      if sent by registered post. Notice of Planned Works under Clause 10 shall
      be copied to the Project Manager.

27.   Waivers and Variations

27.1  No failure by either party to enforce any of the provisions of this
      Agreement shall operate as a waiver of any right of that party relating to
      that provision.

27.2  No variation of any provision of this Agreement shall be effective unless
      in writing and signed by authorised representatives.

28.   Entire Agreement

      This Agreement is the entire understanding between the parties relating to
      the subject matter of this Agreement and supersedes all previous
      understandings or agreements whether written or oral.

29.   Severability

      The invalidity or unenforceability of any provision of this Agreement
      shall not affect the validity or enforceability of the remainder of this
      Agreement

30.   No Partnership

      This Agreement shall not create a partnership between the parties and, at
      all times, each party shall act as an independent contractor for all
      purposes of this Agreement.

31.   Proper Law

                                                                   Page 26 of 42
<PAGE>   27

SNCB/NMBS Fibre Agreement                                          Confidential

31.1  This Agreement shall be governed by and construed in accordance with the
      laws of Belgium and the parties agree that the Courts of Belgium shall
      have exclusive jurisdiction to settle any dispute which may arise out of
      or in connection with this Agreement.

31.2  The language of this Agreement and all documents issued pursuant to and
      arising out of this Agreement shall be English and, notwithstanding any
      translation which may be made, the construction of this contract in
      English shall prevail.

32.   Obligations

      The obligations of each party are only valid to the extent permitted by
      Belgian law.

SIGNED by the parties

SIGNED by                                         )        Date:
duly authorised for and                           )
on behalf of                                      )
SOCIETE NATIONALE DES                             )
CHEMINS DE FER BELGES S.A. DE                     )
DROIT PUBLIC/                                     )
NATIONALE MAATSCHAPPIJ                            )
DER BELGISCHE SPOORWEGEN                          )
N.V. VAN PUBLIEK RECHT                            )


/s/ [illegible]

SIGNED by                                         )        Date: 18/11/96
duly authorised for and                           )
on behalf of                                      )
HERMES EUROPE RAILTEL B.V.                        )

                                                    GOEDGEKEURD


                                                    /s/ [illegible]
                                                    DE GEDELEGEERD-BESTUURDER
                                                    E. SCHOUPPE

                                                                   Page 27 of 42
<PAGE>   28

                             CONFIDENTIAL TREATMENT

SNCB/NMBS Fibre Agreement                                          Confidential

                                   SCHEDULE 1

            Fibre Description, Service Levels And Interface Standards

1.    FIBRE DESCRIPTION

1.1   Technical description

      The description of the technical requirements with which the Railway Fibre
      must comply is set out in the HERMES Optical Cable Specification which is
      set out in the Appendix to this Agreement. Revisions to the HERMES Optical
      Cable specification will be agreed by HER and the Participating Railway
      and the Appendix will be updated accordingly.

1.2   Geographical description

      The Railway Fibre will be provided between Points of Connection. HER's
      geographical requirements will be as specified in the appropriate Design
      Report and confirmed in the Railway Fibre Order.

2.    SERVICE LEVELS

2.1   Availability

      2.1.1 Target maximum number of Cuts along whole Railway Fibre: ## MATERIAL
            OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR CONFIDENTIAL
            TREATMENT ##

      2.1.2 The target restoration time for repair of the Cut is ## MATERIAL
            OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR CONFIDENTIAL
            TREATMENT ##

      2.1.3 Availability requirements will be reviewed to the extent HER expands
            the kilometres of the HER Network in Belgium with additional Railway
            Fibre.

3.    INTERFACE STANDARDS

3.1   HER must be notified by the Participating Railway and agree in writing to
      the type of terminator to be used as interface between the Railway Fibre
      and the HER Equipment or HER Fibre. The Participating Railway is
      responsible for connecting its fibre to the terminator.

                                                                   Page 28 of 42
<PAGE>   29
   
                             CONFIDENTIAL TREATMENT
    

SNCB/NMBS Fibre Agreement                                          Confidential

3.2      The Participating Railway will give HER or their designated
         representatives access to the terminator for the purposes of Acceptance
         Testing as set out in Schedule 3 and for the purposes of connecting HER
         Equipment or HER Fibre to the terminator.

3.3      HER shall provide an optical connector from the Railway terminator to
         HER Equipment and connect into than terminator.



                                [graphic omitted]



3.4   The parties agree that ## MATERIAL OMITTED AND SEPARATELY FILED UNDER A
      REQUEST FOR CONFIDENTIAL TREATMENT ## will be used to connect HER
      Equipment with Railway Fibre.

3.5   The responsibility for connecting HER Fibre to Railway Fibre at border
      crossings is detailed in the Design Report.

                                                                   Page 29 of 42

<PAGE>   30

                             CONFIDENTIAL TREATMENT

SNCB/NMBS Fibre Agreement                                          Confidential

                                   SCHEDULE 2

                        Railway Fibre Ordering Procedures

1.    RAILWAY FIBRE ORDERS

1.1   The first Railway Fibre Orders are:

      i.    Number of fibre pairs : ## MATERIAL OMITTED AND SEPARATELY FILED
            UNDER A REQUEST FOR CONFIDENTIAL TREATMENT ##

      ii.   Route: ## MATERIAL OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR
            CONFIDENTIAL TREATMENT ##

      iii.  Total Distance : ## MATERIAL OMITTED AND SEPARATELY FILED UNDER A
            REQUEST FOR CONFIDENTIAL TREATMENT ## kilometers

      iv.   Available for acceptance Tests by: 10 June 1996

      v.    Fibres to be provided in accordance with Phase I Design Report
            (issue number 1.4) and the terms of this Fibre Agreement.

      i.    Number of fibre pairs : ## MATERIAL OMITTED AND SEPARATELY FILED
            UNDER A REQUEST FOR CONFIDENTIAL TREATMENT ##

      ii.   Route: ## MATERIAL OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR
            CONFIDENTIAL TREATMENT ##

      iii.  Total Distance : ## MATERIAL OMITTED AND SEPARATELY FILED UNDER A
            REQUEST FOR CONFIDENTIAL TREATMENT ## kilometers

      iv.   Available for acceptance Tests by: 30 May 1997

      v.    Fibres to be provided in accordance with Phase I Design Report
            (issue number 1.4) and the terms of this Fibre Agreement.

1.2   Further Railway Fibre Order shall be made as follows:

      (i)   based on fibre forecasts provided, either party may seek a
            commitment from the other by forwarding an offer to the other party,
            in writing, stating the same information as in paragraph 1.1 and
            commercial terms consistent with the terms of this Agreement;

      (ii)  each party is required to respond to an offer in paragraph 1 as soon
            as is reasonably possible but in any event within one month;

      (iii) as soon as terms are agreed both parties shall sign the Railway
            Fibre Order which shall be annexed to this Agreement and be
            incorporated into it.

                                                                   Page 30 of 42

<PAGE>   31

                     CONFIDENTIAL TREATMENT

SNCB/NMBS Fibre Agreement                                          Confidential

                                   SCHEDULE 3

                     Charges, Billing, Payments And Credits

1.    CHARGES

      HER agrees to pay the Participating Railway:

      -     ## MATERIAL OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR
            CONFIDENTIAL TREATMENT ## ECU/kilometre per fibre pair per year

      -     maintenance services fees at:

                  Years ## MATERIAL OMITTED AND SEPARATELY FILED UNDER A REQUEST
                  FOR CONFIDENTIAL TREATMENT ##:

                  ## MATERIAL OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR
                  CONFIDENTIAL TREATMENT ##/kilometre per fibre pair per year

                  Years ## MATERIAL OMITTED AND SEPARATELY FILED UNDER A REQUEST
                  FOR CONFIDENTIAL TREATMENT ##:

                  ## MATERIAL OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR
                  CONFIDENTIAL TREATMENT ##/kilometre per fibre pair per year

      On the anniversary of the date of this Agreement in each year doing which
      the Agreement shall remain in force (each such date being called the
      "Calculation Date"), the Charges for maintenance services shall be varied
      in accordance with the formula set out below:

                  ## MATERIAL OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR
                  CONFIDENTIAL TREATMENT ##

      where

      RC     = Revised Charges

      C      = Charges listed above as being payable in the relevant year for
               maintenance services

      CMI(Y) = Index for the month of March immediately preceding the date of
               this Agreement

      CMI(N) = the Index for the Calculation Month

      Note: the CMI(N) figure in any year shall be revised if there is any
      change to the reference base for the index so than the above calculation
      may be made as if the reference base had not changed.

2.    INVOICING AND PAYMENT

2.1   Charges shall be invoiced quarterly in arrears and amounts invoiced shall
      be paid within thirty days of the date of the invoice. Payments shall be
      made in the currency of account within the European Union from time to
      time (currently the ECU). In the event that no such currency exists an the
      time of invoicing payment shall be made in the currency of Belgium.

2.2   In the first quarter of each calendar year the Participating Railway shall
      issue a credit invoice for the accrued Capacity Credits of the previous
      calendar year an the same time as issuing the invoice for the Charges. If
      and to the extent that the credit invoice exceeds the charges invoiced on
      that quarter, the balance shall be carried forward and deducted from the

                                                                   Page 31 of 42
<PAGE>   32

                     CONFIDENTIAL TREATMENT

SNCB/NMBS Fibre Agreement                                          Confidential

      following quarters Charges. Interest is payable on late payment of the
      Charges (net of Credits) at the accrued quarterly rate of legal interest
      plus ## MATERIAL OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR
      CONFIDENTIAL TREATMENT ## until such payment is made.

3.    CREDITS

      Credits will be deducted from the Charges an a rate of ## MATERIAL OMITTED
      AND SEPARATELY FILED UNDER A REQUEST FOR CONFIDENTIAL TREATMENT ##
      hour/fibre pair

      Credits shall accrue at the rates set out above from the moment that the
      National Centre is informed of the Cut or Degradation until the moment HER
      is notified that availability has been restored.

      Credits will be reviewed to the extent that HER orders additional Railway
      Fibre.

                                                                   Page 32 of 42
<PAGE>   33

SNCB/NMBS Fibre Agreement                                          Confidential

                                   SCHEDULE 4

                               Dispute Resolution

1.    Any dispute in relation to any matter between the parties arising pursuant
      to this Agreement shall in the first instance be referred to the Project
      Managers.

2.    If the Project Managers are not able to settle the dispute concerned it
      shall be referred to the Director of Networks for HER who shall meet the
      Chief of Telecommunications Division from the Participating Railway in
      Belgium within 10 Business Days of being required to do so by the party
      and negotiate in good faith to settle the dispute.

3.    If such individuals are unable to resolve the dispute then; the Managing
      Director of HER and the Director responsible for telecommunications of the
      Participating Railway will meet to attempt resolution. They will meet
      within 20 Business Days of being requested to do so.

4.    If such group cannot resolve the dispute, then the following group will
      meet within 20 Business Days of being requested to do so: the Chief
      Executive Officer of Global TeleSystems Group (or such other equivalent
      shareholder of HER), the Director General or Chief Executive of the
      Participating Railway and the senior railway representative on the HER
      Supervisory Board.

5.    If this final group cannot resolve the outstanding issue, then either
      Party may request to resolve the dispute through mediation conducted by a
      mediator agreed by the parties or failing which appointed by the Director
      of the Belgian Centre for Study and Practice of National and International
      Arbitration (CEPINA) in Belgium which mediator shall be familiar with
      Belgian law ("the Project Mediator").

6.    Should the Project Mediator be unable or unwilling to serve or continue to
      serve, the Parties shall select a replacement. If they are unable to agree
      then the matter may be referred by either Party to the Director of CEPINA
      who shall be requested to appoint a replacement within twenty eight
      calendar days of this request.

7.    The mediation procedure shall be determined by the Project Mediator in
      consultation with the Parties. It shall allow for delivery and exchange of
      brief written summaries of the cases of each Party, with any supporting
      documents essential to an understanding of the dispute. The Parties and
      the Project Mediator may join in the mediation any other party necessary
      for


                                                                   Page 33 of 42
<PAGE>   34

SNCB/NMBS Fibre Agreement                                          Confidential

      a mutually acceptable resolution of the dispute. The Project Mediator may
      call upon such experts to assist him in his task as he considers
      appropriate.

8.    The mediation procedure shall be "without prejudice" and all information,
      data or documentation disclosed or delivered by a Party shall be treated
      as confidential.

9.    The Parties shall endeavour in good faith to reach a mutually acceptable
      resolution with the Project Mediator.

10.   The fees and expenses of the Project Mediator shall be borne equally by
      the Parties unless the Project Mediator shall decide otherwise

11.   Notwithstanding the above the Courts of Belgium have exclusive
      jurisdiction to settle any dispute which may arise out of or in connection
      with this Agreement and nothing in this Schedule shall prevent either
      Party at any time seeking any interim or interlocutory relief from the
      Court.

12.   Preliminary proceedings and disputes in connection with this Agreement
      shall be conducted in English. When the dispute is escalated to the
      Project Mediator, the language will be agreed between the parties. Where
      proceedings take place in the Courts of Belgium, they shall take place in
      French or Flemish.

13.   Unless the Agreement has already been terminated and subject to the
      suspension provisions of clause 19, the Participating Railway shall in
      every case continue to grant or procure the rights and comply with all its
      obligations under the terms of this Agreement regardless of the nature of
      the dispute and notwithstanding the referral of the dispute for resolution
      under this Schedule.

                                                                   Page 34 of 42


<PAGE>   35

                     CONFIDENTIAL TREATMENT

SNCB/NMBS Fibre Agreement                                          Confidential

                                   SCHEDULE 5


                             Provision Of Bandwidth

AGREED TERMS

1.    Interpretation

      This Schedule forms an integral part of the Fibre Agreement between the
      Participating Railway and Hermes Europe Railtel B.V.

      Expressions defined and references construed in the Fibre Agreement have
      the same meaning in this Schedule. In addition the following expressions
      in this Schedule shall have the meaning set out against it below:

"HER Link"                          are the links as described in the Table in
                                    Paragraph 3.1 of this Schedule;

"Interface Standards"               the standards supported by HER at any Point
                                    of Connection which are identified in the
                                    Technical Specifications at Annex 2;

"Loss of Services"                  a failure by HER to provide any of the Links
                                    listed in Paragraph 3.1 which is not in
                                    whole or in part due to a failure of the HER
                                    Network in Belgium;

"Participating Railway 
Equipment                           the equipment including connectors
                                    connecting the Participating Railway network
                                    to the HER Equipment;

"Services"                          the provision by HER of managed capacity
                                    between Points of Connection as defined in
                                    the Technical Specifications;

"Service Credits"                   the amount of ## MATERIAL OMITTED AND
                                    SEPARATELY FILED UNDER A REQUEST FOR
                                    CONFIDENTIAL TREATMENT ## ECU per E1 per
                                    hour;

"Service Dates"                     the date an which the Service relating to a
                                    specific link is effectively available;


                                                                   Page 35 of 42
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                             CONFIDENTIAL TREATMENT

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"Technical Specifications"     the description of Services, Interface Standards,
                               Points of Connection and performance
                               characteristics attached to this Schedule as
                               Annex A as amended from time to time;

"Thresholds"                   for Premium service means ## MATERIAL OMITTED AND
                               SEPARATELY FILED UNDER A REQUEST FOR CONFIDENTIAL
                               TREATMENT ## per annum and for Standard service
                               means ## MATERIAL OMITTED AND SEPARATELY FILED
                               UNDER A REQUEST FOR CONFIDENTIAL TREATMENT ## per
                               annum.

2.    Scope, Term and Review of the Service Agreement

2.1   HER agrees to make available Services under the terms and conditions of
      this Schedule to the Participating Railway without charge provided the
      Services are used solely for its internal railway purposes.

2.2   This Service Agreement shall commence on the date of the signature of the
      Fibre Agreement to which it is attached as a Schedule and shall continue
      for a period of ## MATERIAL OMITTED AND SEPARATELY FILED UNDER A REQUEST
      FOR CONFIDENTIAL TREATMENT ## years or until the Fibre Agreement is
      terminated.

2.3   Except for the right to receive Services, this Agreement shall not
      transfer to the Participating Railway any right, title or interest in the
      HER Network.

3.    Description of Service and Link

3.1   Table

- --------------------------------------------------------------------------------
      HER Links        Service       Level of        Availability      Quantity
- ---------------------
  From         To                     Service        Target Dates
- --------------------------------------------------------------------------------
## MATERIAL OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR CONFIDENTIAL
TREATMENT ##
- --------------------------------------------------------------------------------
## MATERIAL OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR CONFIDENTIAL
TREATMENT ##
- --------------------------------------------------------------------------------
## MATERIAL OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR CONFIDENTIAL
TREATMENT ##
- --------------------------------------------------------------------------------
## MATERIAL OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR CONFIDENTIAL
TREATMENT ##
- --------------------------------------------------------------------------------
## MATERIAL OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR CONFIDENTIAL
TREATMENT ##
- --------------------------------------------------------------------------------
## MATERIAL OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR CONFIDENTIAL
TREATMENT ##
- --------------------------------------------------------------------------------

3.2   The provision of Services by HER is subject to availability at the target
      dates specified in the Table above. Quantities of E1 in addition to the
      quantities specified in the Table will be provided by HER conditionally
      upon the Participating Railway demonstrating the need


                                                                        36 of 42
<PAGE>   37

                             CONFIDENTIAL TREATMENT

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      within the scope of this Service Agreement and up to a maximum of ##
      MATERIAL OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR CONFIDENTIAL
      TREATMENT ## for each of the HER Links referred to in the table, each
      additional E1 being dependent upon the use by HER of an additional pair of
      fibres on that HER Link.

4.    Connecting

4.1   The Participating Railway shall be responsible for connecting to the HER
      Links at the Point of Connection designated by HER.

4.2   Prior to the connection of the Participating Railway to the HER Links, the
      Participating Railway shall comply in all respects with the Technical
      specifications and the relevant Interface Standards and with the
      provisions of Paragraph 5.

4.3   The Participating Railway shall abide by all technical and operational
      conditions laid down from time to time by HER, which are necessary to
      maintain the integrity of the HER Network.

5.    Regulatory Issues and Approvals

5.1   HER is responsible for obtaining regulatory approvals for the
      establishment and operation of the HER Network and the provision of
      transmission service in each country over which the HER Network extends
      from time to time. HER will use best endeavours to obtain relevant
      regulatory approvals.

5.2   The Participating Railway is responsible for obtaining any licences for
      the provision of its services over the HER Links, the Participating
      Railway shall provide HER with a written Certificate confirming that the
      Participating Railway has obtained all licences, clearances or other
      regulatory authorisations under national, supranational or local laws,
      licences or regulations for the establishment and operations of the
      Participating Railway telecommunications systems and the provision of its
      services.

5.3   The parties agree that the Participating Railway has full responsibility
      for ensuring that all signals transmitted over the HER Links which
      originate from or terminate with the Participating Railway comply with all
      relevant national, supranational or local laws, licences or regulations in
      each country over which the HER Links run.


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<PAGE>   38

SNCB/NMBS Fibre Agreement                                           Confidential

5.4   The Participating Railway shall indemnify HER and hold HER harmless
      against all direct liability, losses, demands and damages incurred or
      suffered by HER arising out of any claims brought by third parties in
      respect of the content of Messages transmitted over the HER Links where
      those signals originate from or terminate with the Participating Railway.

5.5   If and as soon as HER becomes aware through formal notification that it
      will not be able to meet any Service Dates for Services over HER Links as
      a result of failing to obtain any necessary regulatory approval in time,
      it shall immediately notify the Participating Railway and provide a new
      date for service.

6.    Maintenance and Modification

6.1   HER and its agents and sub-contractors shall have the right form time to
      time to modify, extend, repair or replace any part of the HER Network and
      HER shall not be liable to the Participating Railway in respect of any
      unavailability of Services.

6.2   HER agrees to keep the Participating Railway informed of its maintenance
      activities which may affect the Services. HER agrees to give the
      Participating Railway 30 days prior warning of any engineering work to be
      carried out under Paragraph 6.1 which may affect the Services and agree a
      schedule of work to reduce the impact on the Participating Railway.

6.3   HER agrees to provide 24 tour monitoring or Services and, where Services
      become unavailable, to use its best endeavours to restore availability
      within the periods provided for in the Technical Specifications.

7.    General Obligations on the Participating Railway

7.1   The Participating Railway represents, warrants and undertakes, in favour
      of HER that it will, at all times, maintain in force and comply with the
      conditions of the licences, laws and regulations under which it provides
      its services.

7.2   The Participating Railway represents, warrants and undertakes that it
      will, at all times:

      (a)   comply with any conditions for the time being of any licence of HER,
            details of which have been communicated to the Participating Railway
            in writing;


                                                                        38 of 42

<PAGE>   39

                             CONFIDENTIAL TREATMENT

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      (b)   comply with all regulations and or laws in every country over which
            the HER Links run which concern the provision of services by the
            Participating Railway; and

      (c)   restrict its use of the Services to the application described in
            Paragraph 2.1.

7.3   The Participating Railway shall indemnify HER and hold it harmless against
      all actions, proceedings, claims, demands or costs howsoever arising out
      of any breach by the Participating Railway of any provision of this
      Schedule or any infringement of third party intellectual property rights
      arising from the carriage of signals introduced into the HER Network by
      the Participating Railway or of any breach by the Participating Railway of
      any law, regulation, licence approval authorisation applicable to the
      provision or use of Services.

7.4   The Participating Railway and HER agree that, should the Participating
      Railway use the Services to provide a commercial service to a third parry
      in violation of Paragraph 7.2(c), the appropriate measure of the damage
      suffered by HER as result of that breach is an amount equal to the total
      revenues derived by the Participating Railway from the provision of such
      service.

8.    Liability

8.1   Provided that HER is able to offer diverse routing along any HER Link, HER
      shall pay Service Credits to the Participating Railway for any Loss of
      Service exceeding the Thresholds on that HER Link, arising due to the
      gross negligence of HER. The aggregate Service Credits payable in any ##
      MATERIAL OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR CONFIDENTIAL
      TREATMENT ## period shall not exceed the annual contract value of the
      Fibre Agreement

      For the avoidance of doubt, HER shall not be liable to the Participating
      Railway for any delay in the implementation of the Services or any part
      thereof.

8.2   HER shall in no event be liable to the Participating Railway for any loss
      of revenue, loss of profit, loss of contract or loss of goodwill, or any
      indirect or other consequential loss, howsoever caused, arising under or
      in connection with this Schedule.

8.3   The provisions of this paragraph will survive termination of this
      Schedule.


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<PAGE>   40

SNCB/NMBS Fibre Agreement                                           Confidential

9.    Right of Rescission

9.1   If, despite using best endeavours, HER is unable to obtain or maintain any
      licences required by HER in any country to establish or operate the HER
      Network or any HER Link or to provide transmission services, or if they
      are revoked, or if HER's provision of transmission services is challenged
      in any country over which the HER Links run by a formal written
      communication from any relevant national regulatory authority or Court,
      HER shall not face any claim for loss damage or compensation from the
      Participating Railway;

10.   Termination

10.1  Notwithstanding clauses 21 and 22 of this Agreement, if the Participating
      Railway commits a material breach of its obligations under this Schedule
      which is capable of remedy, HER shall serve notice in writing on the
      Participating Railway, requiring the Participating Railway to cure the
      breach:

      (a)   within two months if it is a breach of the proviso to paragraph 2.1
            of this Schedule or a breach of paragraph 7.1 or 7.2 of this
            Schedule or if the Participating Railway's use of the Services
            damages or disrupts the HER Network; or

      (b)   within six months for any other material breach.

10.2  on receipt of the notice in paragraph 10.1 the Participating Railway shall
      with all reasonable diligence take such steps as shall be reasonable and
      necessary to remedy the breach and shall keep HER informed of the progress
      being made.

10.3  Without prejudice to paragraph 10.4. in the event that the Participating
      Railway disputes that there is a material breach then the parties will
      appoint a Project Mediator in accordance with Schedule 4 paragraphs 5 to
      10 to resolve the issue within the cure period mentioned above.

10.4  If the breach is not cured within the periods stated above and no solution
      has been found under paragraph 10.3 HER shall be entitled to terminate the
      Services and clause 22.2(b) shall apply.

10.5  For the avoidance of doubt. In the event and for the period that HER is
      using the Railway Fibre after the Participating Railway has terminated
      this Agreement, as provided for by sub-clause 22.2(a), HER shall continue
      to provide the Services to the Participating Railway.


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<PAGE>   41

SNCB/NMBS Fibre Agreement                                           Confidential

11.   Assignment

      The Participating Railway may not assign or sub-contract its rights or
      obligations under this Service Agreement without the prior written consent
      of HER.


                                                                        41 of 42
<PAGE>   42

SNCB/NMBS Fibre Agreement                                           Confidential

                                   SCHEDULE 6

                          Disclosure Against Warranties

The Regulation relating to the service and resting periods of personnel under
Bundel 541 Article 14


                                                                        42 of 42
<PAGE>   43

                                     ALCATEL

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

                    OPTICAL CABLE SPECIFICATIONS AND TESTING

                             FOR THE HERMES NETWORK

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

          Author:             Michel LAURENT      Date : 08. 12. 1995
          And completed by:   Daniel CHALAMET     Date : 25. 03. 1996
                              Daniel CHALAMET     Date : 10. 04. 1996
                              Daniel CHALAMET     Date : 02. 05. 1996
                              Daniel CHALAMET     Date : 22. 08. 1996
                              Daniel CHALAMET     Date : 29. 08. 1996
<PAGE>   44

                                     ALCATEL

                                TABLE OF CONTENTS

1 - INTRODUCTION ........................................................      3
2 - SPECIFICATIONS FOR NEW CABLES OWNED BY HERMES .......................  3-4-5
3 - SPECIFICATIONS FOR FIBRES LEASED BY HERMES ..........................      6
    3.1.  NEW CABLES BUILT BY RAILWAYS ..................................      6
    3.2.  EXISTING CABLES ...............................................      6
4 - CABLE TESTING .......................................................      6
    4.1.  INTRODUCTION ..................................................      6
    4.2.  GENERALITIES ..................................................    6-7
    4.3.  TEST TO BE PERFORMED ON SITE FOR NEW CABLES ...................      7
          4.3.1. TESTS AFTER LAYING THE CABLE AND BEFORE JOINTING .......      7
          4.3.2. TESTS DURING JOINTING ..................................      7
          4.3.3. TESTS AFTER JOINTING ...................................      7
    4.4.  PARAMETERS TO BE CHECKED ......................................      7
    4.5.  LINK ACCEPTANCE TEST ..........................................    8-9
    4.6.  PRINCIPLES OF WORKING .........................................     10
          4.6.1. LEASED FIBRE LINKS .....................................9-10-11
          4.6.2. CABLE LINKS BUILT BY ALCATEL FOR HERMES ................     12
          4.6.3. SUMMARY OF DATA TO BE PROVIDED AND TESTS TO BE EXECUTED.     13
5 - TEST METHODS ........................................................     12
    5.1. POWER LOSS MEASUREMENTS ........................................     12
    5.2. OPTICAL TIME DOMAIN REFLECTOMETRY MEASUREMENTS .................  12-13
    5.3. POLARIZATION MODE DISPERSION MEASUREMENTS ......................     13
    5.4. CHROMATIC DISPERSION MEASUREMENTS ..............................     13
    5.5. LIST OF PROPOSED EQUIPMENT .....................................     14
6 - APPENDIX (LIST) .....................................................     15
    o  APPENDIX 1  Test record for fibre splice attenuation (Reflectometry)   16
    o  APPENDIX 2  Test record for attenuation measurements (Reflectometry) 
                    and return loss .....................................     17
    o  APPENDIX 3  Test record for attenuation measurements (Optical 
                    loss measurement) ...................................     18
    o  APPENDIX 4  Test record for acceptance test certificate ..........     19
    o  APPENDIX 5  Test record for Polarization Mode Dispersion .........     20
    o  APPENDIX 6  Test record for acceptance test certificate ..........     21
    o  APPENDIX 7  Test record for chromatic dispersion .................     22
    o  APPENDIX 8  Test record for acceptance test certificate ..........     23
7 - HISTORY .............................................................     24


- --------------------------------------------------------------------------------
29 August 1996            OPTICAL CABLE SPECIFICATIONS                 Page 2/24

ALCATEL 1996                       Issue 6.0
<PAGE>   45

                                     ALCATEL

1 - INTRODUCTION:

      The purpose of this document is to define the Optical Cable Specifications
      relevant to the Phase 1 of the HERMES Project and to give the test
      procedures on cables.

2 - SPECIFICATIONS FOR NEW CABLES OWNED BY HERMES:

      In the case where new cables are supplied by ALCATEL to HERMES, they will
      comply with the technical data shown in Table 1 for single mode fibers,
      and in Table 2 for dispersion shifted fibers.

      In addition to the cable specification shown in Table 1 and 2, the
      following specifications will be applied:

            - Maximum Splice attenuation average : 0.1 dB at 1550 nm

            - Maximum unitary ODF/S connector attenuation : 0.5 dB at 1550 nm

            - Minimum connector Return Loss : 50 dB at 1550 nm

            - Maximum value for Polarization mode dispersion : 0.7
              ps/(checkmark)Km at 1550 nm


- --------------------------------------------------------------------------------
29 August 1996            OPTICAL CABLE SPECIFICATIONS                 Page 3/24

ALCATEL 1996                       Issue 6.0
<PAGE>   46

                                     ALCATEL

- --------------------------------------------------------------------------------
TYPE and CONSTITUTION

Single mode, complying with recommendation : CCITT G 652

The fibres are made of high grade doped silica core surrounded by a silica
cladding; they are coated with a dual layer, UV cured acrylate based coating.

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

GEOMETRICAL PROPERTIES

Mode field diameter at 1310 nm            (micro-m.)        [9 -  10] +/- 10 %
Cladding diameter                         (micro-m.)        125 +/- 3
Coating diameter                          (micro-m.)        245 +/- 10
Mode field non circularity                       (%)        <= 6
Cladding non circularity                         (%)        <= 2
Core/cladding concentrity error           (micro-m.)        <= 1
Cladding/coating concentrity error        (micro-m.)        <= 15

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

OPTICAL PROPERTIES

Cut-off-wavelength (Cabled fibre)            (nm)           (lambda)cc <= 1280
                                                                               
Attenuation:                                                                   
Maximum value between 1285 and 1330 nm       (dB/km)        0.38              
Maximum value at 1550 nm                     (dB/km)        0.25              
                                                                               
Attenuation uniformity (local default)       (dB)           <= 0.1          
                                                                               
Chromatic dispersion:                                                          
between 1285 and 1330 nm                     (ps/nm.Km)     <= 3           
at 1550 nm                                   (ps/nm.Km)     < 20              

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

MECHANICAL PROPERTIES

Proof test                                   (%)            >= 1
(minimum duration 1 s)
Macro bend test
additionnal loss at 1550 nm                  (dB)           <= 0.1
(100 turns on 75 mm diameter mandrel)

- --------------------------------------------------------------------------------
Note: All measurements to be in accordance with CCITT G. 652 recommendations

                                    Table 1


- --------------------------------------------------------------------------------
29 August 1996            OPTICAL CABLE SPECIFICATIONS                 Page 4/24

ALCATEL 1996                       Issue 6.0
<PAGE>   47

                                     ALCATEL

- --------------------------------------------------------------------------------
TYPE and CONSTITUTION

Single mode dispersion shifted, complying with recommendation: CCITT G 653

The fibres are made of high grade doped silica core surrounded by a pure silica
cladding; they are coated with a dual layer, UV cured acrylate based coating.

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

GEOMETRICAL PROPERTIES

Mode field diameter at 1550 run          (micro-m.)        [7.0 - 8.3] +/- 10 %
Cladding diameter                        (micro-m.)        125 +/- 3
Coating diameter                         (micro-m.)        250 +/- 10
Cladding non circularity                     (%)           <= 2
Mode field concentrity error             (micro-m.)        <= 1
Cladding/coating concentrity error       (micro-m.)        <= 10

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

OPTICAL PROPERTIES

Cut-off-wavelength                         (nm)            1050 <= (lambda)c 
                                                           <= 1350    
                                                                                
Attenuation:                                                                    
                                                                                
Maximum value at 1550 nm                   (dB/km)         0.25                
                                                                                
Attenuation uniformity (local default)     (dB)            <= 0.1             
                                                                                
Chromatic dispersion                                                            
between 1535 and 1575 nm                   (ps/(nm.Km)     <= 2.7             
Zero dispersion wavelength                 (nm)            1530 <=  (lambda)o 
                                                           <= 1590  
Zero dispersion slope                      (ps/(nm(2).Km)  <= 0.085           
                                                            
- --------------------------------------------------------------------------------

MECHANICAL PROPERTIES

Proof test                                   %             >= 1
(minimum duration 1 s)
Macro bend test
additional loss at 1550 nm                   (dB)          <= 0.2
(100 turns on 60 mm diameter mandrel)

- --------------------------------------------------------------------------------
Note : All measurements to be in accordance with CCITT G. 653 recommendations

                                     Table 2


- --------------------------------------------------------------------------------
29 August 1996            OPTICAL CABLE SPECIFICATIONS                 Page 5/24

ALCATEL 1996                        Issue 6.0
<PAGE>   48

                                     ALCATEL

3 - SPECIFICATIONS FOR FIBRES LEASED BY HERMES

      3.1.  NEW CABLES BUILT BY THE RAILWAYS:

            In the case of new cables built by the RAILWAYS, it is recommended
            that, as a minimum, specifications for cables as defined in chapter
            2 (including for the cable splices and connectors) are applicable.
            The minimum cable specification required for the HERMES Network is
            as defined in 3.2. Existing cables

      3.2.  EXISTING CABLES:

            In the case of existing cables owned by the RAILWAYS, the
            specifications in Chapter 2 must be met with respect to the
            following optical properties at 1550 nm : Attenuation, Chromatic
            Dispersion, and Polarization Mode Dispersion. The specifications for
            the cable splices and connectors in chapter 2 are also applicable.

4 - CABLE TESTING

      4.1.  INTRODUCTION:

            This chapter describes tests related to cable. For existing and new
            leased cables this chapter provides advice to the RAILWAYS on test
            procedures to be applied.

            It should be noted that all measurements must be carried out by
            personnel who are skilled and experienced in the use of test
            equipment involved and have proven ability to carry out these
            measurements in a field environment.

      4.2.  GENERALITIES:

            The purpose of the testing during and alter installation is:

            - To check that cable laying operation did not adversely affect the
            attenuation of the optical fibres, compared to that recorded during
            factor acceptance tests.

            - To check that splices on the optical fibres are satisfactory, and
            do not adversely affect the attenuation values.


- --------------------------------------------------------------------------------
29 August 1996            OPTICAL CABLE SPECIFICATIONS                 Page 6/24

ALCATEL 1996                       Issue 6.0
<PAGE>   49

                                     ALCATEL

            - To establish validity of the link by measuring its performances
            from end to end.

            Measurements made on optical fibres refer to CCITT recommendation G
            652 for single mode fibers and C 653 for dispersion shifted fibers.

            The characteristics of optical fibre transmission mostly concern
            transmission attenuation and determines the ability to transmit data
            across the link. It can also reveal mechanical strains that may
            cause later fibre breakage.

            There are two types of attenuation measurements:

            - Optical power attenuation measurement : measuring the power
            launched into the fibre as well as that restored at the receiver
            input enables accurate calculation of the complete link attenuation.

                  Att (dB) = Tx P (dB) - R x P (dB)

            - Back scattering measurement: Measuring the light scattered into
            the fibre, to draw up the attenuation curve. This measurement shows
            any variation in attenuation, and allows the location to be
            determined.

      4.3.  TESTS TO BE PERFORMED ON SITE FOR NEW CABLES:

            The tests described in this section are recommended to the RAILWAYS
            for new cables leased by HERMES from the RAILWAYS. For new cables
            delivered and installed by ALCATEL the tests described here can be
            considered as part of ALCATEL's standard practice.

            4.3.1. - TESTS AFTER LAYING THE CABLE AND BEFORE JOINTING: 
                     (only in case of difficult laying or important traction 
                      force)

            The purpose of this test is to check that the quality of the cable
            has not been adveresly affected during laying.

            A back-scattering measurement is done at 1550 nm and in both
            directions for each fibre, and from each origin of laid sections of
            cable.


- --------------------------------------------------------------------------------
29 August 1996            OPTICAL CABLE SPECIFICATIONS                Page  7/24

ALCATEL 1996                        Issue 6.0
<PAGE>   50

                                     ALCATEL

            4.3.2. - TESTS DURING JOINTING:

            The purpose of this test is to assess the quality of each splice. An
            estimate of the attenuation value is directly indicated by the
            splicing machine.

            4.3.3. - TESTS AFTER JOINTING:

            The purpose of this test is to check the quality of the splices in
            detail.

            An OTDR-based back-scattering measurement is done at 1550 nm and in
            both directions for each fibre, and from each origin of laid
            sections of cable.

      4.4   PARAMETERS TO BE CHECKED:

            For leased fibre, the Chromatic Dispersion (CD) and Polarization
            Mode Dispersion (PMD) parameters need to be checked by the RAILWAYS
            in order to verify whether the fibres meet the specifications of
            HERMES as defined in chapters 2 and 3.

            If these parameters are not available to the RAILWAYS, they should
            request their manufacturer to deliver that data. If PMD data remains
            unavailable, it should be measured on site.

            For new fibre delivered by ALCATEL, the CD and PMD values will be
            made available from factory measurements.

      4.5.  LINK ACCEPTANCE TEST:

            For both fibres leased from the RAILWAYS and cable delivered by
            ALCATEL, tests shall be performed in both directions in the 1550 nm
            window.

            The purpose of the tests is to check that the fibres between two
            stations (nodes and/or regenerators) can operate in the 1550 nm
            window, according to the technical specifications


- --------------------------------------------------------------------------------
29 August 1996            OPTICAL CABLE SPECIFICATIONS                Page  8/24

ALCATEL 1996                       Issue 6.0
<PAGE>   51

                                     ALCATEL

            The following tests are to be performed :

                  - Back scattering measurements. 
                  - Attenuation measurement.

                  - Section 5 describes the test Methods to be used
                  - Section 6 provides blank copies of the tests sheets to be
                    used

      4.6.  PRINCIPLES OF WORKING:

            4.6.1. - Leased fibre links:

            4.6.1.1. - For input into the Design Report, it is required for
            existing cables that the RAILWAYS supply measurement values as
            defined in 4.6.1.2. For new cables the RAILWAYS are required to
            provide a prediction of values as defined in 4.6.1.2. Assumptions
            used in the prediction to be stated.

            4.6.1.2 - As soon as the fibre is available, fibre measurement
            values are to be provided and communicated to ALCATEL / HERMES by
            the RAILWAYS. ALCATEL will include these values in the Design
            Report.

            The following measures are carried out at 1550 nm:

            ATTENUATION:

                  - Total budget of the route or link
                  - Analysis of each splice and of each particular point where
                    the average attenuation value is equal or more than 0.1 db
                  - Analysis of ODF for each section (<=  0.5 db) 
                  - Return loss ODF for each link (>= 50 db)

            CHROMATIC DISPERSION:

                  - Given by the manufacturer of optical fibre cables.

                  - To be communicated by the RAILWAYS which have this value in
                    their files.

            POLARIZATION MODE DISPERSION:

                  - To be measured on site for each link, if the tests realised
                    in factory are not available


- --------------------------------------------------------------------------------
29 August 1996            OPTICAL CABLE SPECIFICATIONS                Page  9/24

ALCATEL 1996                       Issue 6.0
<PAGE>   52

                                     ALCATEL

            4.6.1.3. - ALCATEL will provide to HERMES a report that contains the
            fibre performance data obtained from the RAILWAYS and complete this
            report with an assessment of the received fibre information. If the
            leased fibre data shows that the fibre is not compliant with the
            HERMES specifications, HERMES will, in collaboration with ALCATEL,
            define the necessary actions. Subsequently, HERMES and ALCATEL will
            proceed jointly to incorporate any required changes in the planning
            and the costs into the Design Report.

            If repairs by the RAILWAYS are necessary, ALCATEL will verify the
            new fibre data obtained from the RAILWAYS after their repairs and
            ALCATEL will issue a new report containing the new fibre parameter
            values and the associated assessment by ALCATEL.

            If one or several assessments are neccessary, following the refusal
            of the second one, ALCATEL will ask for a financial compensation
            concerning this extra performance.

            ALCATEL will send HERMES its report, no more than ten working-days
            after receiving test results from the RAILWAYS.

            4.6.1.4. - When asked by HERMES, ALCATEL will perform the acceptance
            tests. These tests will be executed to verify the fibre data made
            available by the RAILWAYS. ALCATEL will execute the link acceptance
            tests as presented in section 4.5. on the fibres that HERMES will
            lease for the link envisaged. Furthermore, if the RAILWAYS cannot
            provide PMD values from their cable manufacturers, ALCATEL will
            verify, at this moment, the PMD through its own tests.

            The test data from the tests performed by ALCATEL will be written on
            measurements sheets as shown in Section 6.

            If the test results obtained from the ALCATEL tests are in
            accordance with the HERMES specifications (as outlined in chapters 2
            and 3), the test sheets will be chronologically signed by:

                  - the RAILWAYS first,
                  - ALCATEL then,

            and later approved by HERMES.

            If the test results obtained from the ALCATEL tests are not in
            accordance with the HERMES specifications, ALCATEL will reject the
            acceptance of these fibres. ALCATEL will then ask HERMES how to
            proceed.

            The tests realised by ALCATEL, at the request of HERMES, will be
            executed only once.

            ALCATEL will send HERMES its report, no more than ten working-days
            after receiving test results signed by the RAILWAYS.


- --------------------------------------------------------------------------------
29 August 1996            OPTICAL CABLE SPECIFICATIONS               Page  10/24

ALCATEL 1996                        Issue 6.0
<PAGE>   53

                                     ALCATEL

            4.6.2. - Cable links built by ALCATEL for HERMES:

            ALCATEL will execute the link acceptance tests specified in sections
            4.3 and 4.5 to verify conformance with the specifications of chapter
            2. These tests will be executed as part of installation works. CD
            and PMD values will be made available from factory tests.

            The test results obtained from the ALCATEL tests and realised by the
            country ALCATEL's team, will be in accordance with the HERMES
            specifications (as outlined in chapters 2 and 3). The test sheets
            provided by it, will be chronologically signed by:

                  - ALCATEL first, 
            and later approved by HERMES.

            The test results will be provided to HERMES within 5 working-days
            after the completion of the tests.

            4.6.3. - Summary of data to be provided and tests to be executed:

<TABLE>
<CAPTION>
                     -------------------------------------------------------------------
                     Fibre data to be provided by the  Fibre acceptance data provided by
                     RAILWAYS                          ALCATEL tests
- -----------------------------------------------------------------------------------------
<S>                  <C>                               <C>
Leased Fibre Links   Required factory data:            Link tests data:
(existing or new)    - Chromatic dispersion            - Attenuation measurements
                     Optional factory data:            (with Wattmeter)
                     - Polarization Mode Dispersion    - OTDR measurement
                     Required link tests data :        - PMD measurement
                     - Attenuation measurements        (if factory data not available)
                     (with Watt meter)
                     - OTDR measurement
                     - PMD measurement
                     (if factory data not available)
- -----------------------------------------------------------------------------------------
Cable links built by                                   Factory data               
ALCATEL for                                            - C D measurement          
HERMES                                                 - PMD measurement          
                                                       Link tests data:           
                                                       - Attenuation measurements 
                                                       (with Watt meter)           
                                                       - OTDR measurement         
- -----------------------------------------------------------------------------------------
          NOTE: All rests will be at 1550 nm.
- -----------------------------------------------------------------------------------------
</TABLE>


- --------------------------------------------------------------------------------
29 August 1996            OPTICAL CABLE SPECIFICATIONS               Page  11/24

ALCATEL 1996                        Issue 6.0
<PAGE>   54

                                     ALCATEL

3 - TEST METHODS

      5.1.  POWER LOSS MEASUREMENTS:

            The purpose of this test is to measure accurately the value of the
            total end-to-end optical loss along the considered link. (It only
            shows the total link loss, without identification of local
            concentration of losses). This test is executed in the field, in
            both directions at 1550 nm.

            The measurement is done with an optical wattmeter connected to one
            end of the fibre and an optical laser light source (at 1550 nm) to
            the other end of the fibre. Measured attenuation is recorded on a
            test sheet, as shown in Section 6 Appendix 3. The test is then
            repeated in the opposite direction.

            The test equipment must be calibrated according to the prescriptions
            of the manufacturer of the test equipment.

            The test provides a global and very accurate measurement of the
            complete link attenuation, and allows the optical power of the
            receiver input to be calculated.

      5.2.  OPTICAL TIME DOMAIN REFLECTORY MEASUREMENTS (O.T.D.R.):

            The purpose of this test is to measure any problem points with
            respect to the transmission or reflection losses of the fibre link
            and to locate the position of these points. This test is executed in
            the field.

            This measurement is done with an optical reflectometer, connected to
            both fibres end points and is used to perform remote measurements.

            The optical reflectometer launches power into the fibre and analyses
            the reflected signal, which permits the fibre attenuation due to
            scattering, absorption and reflections to be calculated.

            Part of the scattered power pulse is sent back to the optical
            reflectometer where it is detected and displayed on a
            cathode-ray-screen.

            The rate of returned power depends on the power launched into the
            fibre and on the back scattering factor of the latter.

            The optical reflectometer displays on its screen the optical power
            of the received signals on a logarithmic scale.


- --------------------------------------------------------------------------------
29 August 1996            OPTICAL CABLE SPECIFICATIONS                Page 12/24

ALCATEL 1996                       Issue 6.0
<PAGE>   55

                                     ALCATEL

            Direct reading of the following can be made:

             - On the X axis : distance between each point of the fibre and the
             measuring instrument.

             - On the Y axis : power scattered by each point of the fibre. Any
             sudden drop of the curve means punctual attenuation.

            This measure is performed in both directions of a link. It is the
            average of both results which is considered.

            This measure also provides an accurate value of the Return Loss for
            each O.D.F. situated at both extremities of the measured link.

      5.3.  POLARIZATION MODE DISPERSION MEASUREMENTS (P.M.D.):

            The purpose of this test is to measure the end to end Polarization
            Mode Dispersion of the optical fibre link. This test is routinely
            performed in factory; field tests will be performed if factory data
            is not available for existing cable.

            In this case, this test is carried out in one direction only, and
            the results filled on test sheets (Section 6 - Appendices 4 and 6).

            The source consists of a LED and of a polarizer (transmitter). The
            receiver consists of a MICHELSON's interferometer.

            The measurement is performed by analysing the decomposition into two
            perpendicularly polarized modes of a light signal injected into the
            fibre under test (bi-refrangibility phenomenon).

            The two modes do not propagate at the same speed because of the
            anomalies of the fibre (ovality of the heart, local constraint,
            etc...).

            The measured lateness of transmission (in picoseconds) allows to
            obtain the Polarization Dispersion value in picoseconds per square
            root kilometer (Ps / (checkmark)Km).

      5.4.  CHROMATIC DISPERSION MEASUREMENTS (C.D.):

            The purpose of this test is to measure the end to end Chromatic
            Dispersion of the optical fibre link. This test is routinely
            performed in factory. For existing cables, factory data should be
            made available.

            The Chromatic Dispersion is the difference, expressed in
            picoseconds, between the propagation times of the different modes at
            a specific wavelength (1550 nm), depending on the index of the
            materials used for the construction of the fibre.


- --------------------------------------------------------------------------------
29 August 1996            OPTICAL CABLE SPECIFICATIONS                Page 13/24

ALCATEL 1996                       Issue 6.0
<PAGE>   56

                                    ALCATEL

      5.5.  LIST OF PROPOSED EQUIPMENT:
            (which can be used for testing and acceptance tests)

            - Complete set for attenuation measurement:
              * Monomode Laser source for 1550 nm
              * Optical power meter (850 to 1550 nm)
              * Optical attenuation (variable)

            - Complete set for back-scattering measurement: 
              * Optical Time Domain Reflectometer (OTDR)
              * OTDR accessories

            - Complete set/or PMD measurement:
              * Optical Transmitter (Polarizer)
              * Optical Receiver controlled by computer (PMD Analyser)
              * PMD accessories

            - Complete set for CD measurement:
              * Optical Transmitter
              * Optical Receiver
              * CD accessories

*NOTE: PMD and CD equipment are not the same.

            All equipment that is used for testing has to be suitable to obtain
            results within reasonable accuracy. The accuracy should be stated in
            the specifications of the equipment and must be guaranteed by
            calibration reports of max. one year old.

            Any measurement resorts should always state the name of the person
            who carried out the measurements the brand, type and serial numbers
            of the equipment that were used, the date and number of the
            calibration - certificate and of course a unique definition of the
            fibre (s) that has been measured.

            - Fibre Cleaning Kit:

            Before performing any test, each fibre end/connector should be
            properly cleaned. Here is a short list (for example) of different
            materials to use for cleaning:

             * Dry air spray
             * Alcohol at 90(degrees)
             * Gauze
             * Cotton-buds
               etc....


- --------------------------------------------------------------------------------
29 August 1996            OPTICAL CABLE SPECIFICATIONS                Page 14/24

ALCATEL 1996                        Issue 6.0
<PAGE>   57

                                     ALCATEL

6 - APPENDIX (LIST)

                                                                           PAGES

* APPENDIX 1  Test record for fibre splice attenuation (Reflectometry) .....  16
* APPENDIX 2  Test record for attenuation measurements (Reflectometry) and
                return loss ................................................  17
* APPENDIX 3  Test record for attenuation measurements (Optical loss 
                measurement) ...............................................  18
* APPENDIX 4  Test record for acceptance test certificate ..................  19
* APPENDIX 5  Test record for Polarization Mode Dispersion .................  20
* APPENDIX 6  Test record for acceptance test certificate ..................  21
* APPENDIX 7  Test record for Chromatic dispersion .........................  22
* APPENDIX 8  Test record for acceptance Test certificate ..................  23


- --------------------------------------------------------------------------------
29 August 1996            OPTICAL CABLE SPECIFICATIONS                Page 14/24

ALCATEL 1996                       Issue 6.0
<PAGE>   58

                             CONFIDENTIAL TREATMENT

APPENDIX 1 (ISSUE 6.0) PAGE 16/24
- -----------------------
NEW OR LEASED CABLE (1)
- -----------------------
FIELD MEASUREMENT VALUES

                           MONODE OPTICAL FIBRE CABLE
           TEST RECORD FOR FIBER SPLICE ATTENUATION (REFLECTROMETRY)

                                                              [LOGO FOR ALCATEL]

CABLE ROUTE:  ____________________________________________ SSF OR DSF (1)
LINK (1)
OR          (ORIGIN (O): _________________________________
SECTION)
            (EXTREMITY (E): ______________________________

CABLE MANUFACTURER: ______________________________________

FIBRE MANUFACTUER: _______________________________________

MEASUREMENT EQUIPMENT:
(Make, Model and Serial Number) __________________________

WAVELENGTH:             ## MATERIAL OMITTED AND SEPARATELY FILED UNDER A REQUEST
                        --------------------------------------------------------
                        FOR CONFIDENTIAL TREATMENT ##
                        ----------------------------

INDEX OF REFRACTION:    __________________________________

NUMBER OF SPLICES:      __________________________________

DATE: __________________________________

<TABLE>
<CAPTION>
- ------------------------------------------------------------------------------------------------------------------------------------
[ILLEG.]                                                                                                            SPLICE
  Fibre  CONNECT  SPLICE    SPLICE    SPLICE    SPLICE   SPLICE   SPLICE    SPLICE    SPLICE    SPLICE    SPLICE    AVERAGE  CONNECT
 Number    "0"      1         2         3         4        5        6         7         8         9         10      BY O.F.    "E"
- ------------------------------------------------------------------------------------------------------------------------------------
<S>              <C>      <C>       <C>       <C>        <C>       <C>       <C>       <C>       <C>       <C>
                -> <- AV. -> <- AV. -> <- AV.  -> <- AV. -> <- AV. -> <- AV. -> <- AV. -> <- AV. -> <- AV. -> <- AV.
- ------------------------------------------------------------------------------------------------------------------------------------

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

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

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

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

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

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

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

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

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

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

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

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

- ------------------------------------------------------------------------------------------------------------------------------------
AVERAGE OF SPLICES                                                                                               Total splice
                                                                                                                   average
- ------------------------------------------------------------------------------------------------------------------------------------
- ------------------------------------------------------------------------------------------------------------------------------------
Measured by: (2)                              Transmitted to HERMES by ALCATEL               Returned by HERMES for acceptance
                                              Name:                                          Name:
Name:                                         Date:                                          Date:

Signature:                                    Signature:                                     Signature:
- ------------------------------------------------------------------------------------------------------------------------------------
(1) Delete as necessary                       (2) ALCO or COUNTRY RAILWAYS
</TABLE>

<PAGE>   59

                             CONFIDENTIAL TREATMENT

APPENDIX 2 (ISSUE 6.0) PAGE 17/24
- -----------------------
NEW OR LEASED CABLE (1)
- -----------------------
FIELD MEASUREMENT VALUE

                          MONOMODE OPTICAL FIBRE CABLE
            TEST RECORD FOR ATTENUATION MEASUREMENTS (REFLECTROMETRY)
                                AND RETURN LOSS

                                                              [LOGO FOR ALCATEL]

CABLE ROUTE:  ____________________________________________ SSF OR DSF (1)
LINK (1)
OR          (ORIGIN (0): _________________________________
SECTION)    )
            (EXTREMIT:   _________________________________

CABLE MANUFACTURER:      _________________________________

NUMBER OF FIBRES:        _________________________________

FIBRE MANUFACTUER:       _________________________________

TEST EQUIPMENT:
(Make, Model and Serial Number) __________________________

WAVELENGTH:             ## MATERIAL OMITTED AND SEPARATELY FILED UNDER A REQUEST
                        --------------------------------------------------------
                        FOR CONFIDENTIAL TREATMENT ##
                        ----------------------------

INDEX OF REFRACTION:    __________________________________

NUMBER OF SPLICES:      __________________________________

AVERAGE OPTICAL LENGTH  __________________________________

DATE: __________________________________

<TABLE>
<CAPTION>
- ------------------------------------------------------------------------------------------------------------
 Fibre          ATTENUATION (dB)       RETURN LOSS       Fibre           ATTENUATION (dB)       RETURN LOSS  ATTENUATION (dB)
           -------------------------      (dB)                      -------------------------      (dB)      
 number    O -> E   E -> O  Average      O     E         Number     O -> E   E -> O  Average      O     E    Total
<S>        <C>      <C>     <C>          <C>   <C>       <C>        <C>      <C>     <C>          <C>   <C>
- ------------------------------------------------------------------------------------------------------------

- ------------------------------------------------------------------------------------------------------------ average          |_|

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

- ------------------------------------------------------------------------------------------------------------ Measured

- ------------------------------------------------------------------------------------------------------------ minimum value    |_|

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

- ------------------------------------------------------------------------------------------------------------ Measured 

- ------------------------------------------------------------------------------------------------------------ maximum value    |_|

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

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

- ------------------------------------------------------------------------------------------------------------ RETURN LOSS (dB)

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

- ------------------------------------------------------------------------------------------------------------ Measured 
                                                                                                             Minimum value    |_|
- ----------------------------------------------------------------------------------------------------------------------------------
Measured by: (2)                              Transmitted to HERMES by ALCATEL:              Returned by HERMES for acceptance:
Name:                                         Name:                                          Name:
                                              Date:                                          Date:
Signature:                                    Signature:                                     Signature:
- ----------------------------------------------------------------------------------------------------------------------------------
(1) Delete as necessary                       (2) ALCO or COUNTRY RAILWAYS
</TABLE>

<PAGE>   60


                             CONFIDENTIAL TREATMENT

APPENDIX 3 (ISSUE 6.0) PAGE 18/24
- -----------------------
NEW OR LEASED CABLE (1)
- -----------------------
FIELD MEASUREMENT VALUE

                                                              [LOGO FOR ALCATEL]

                          MONOMODE OPTICAL FIBRE CABLE
       TEST RECORD FOR ATTENUATION MEASUREMENTS (OPTICAL LOSS MEASUREMENT)

CABLE ROUTE:  ____________________________________________ SSF OR DSF (1)
LINK (1)
OR          (ORIGIN (0):   _______________________________
SECTION)    )
            (EXTREMITY(E): ________________________________

CABLE MANUFACTURER:        _______________________________

NUMBER OF FIBRES:          _______________________________

FIBRE MANUFACTUER:         _______________________________

TRANSMITTER:) Make, Model          _________________________________

RADIOMETER: (and Serial Number     _________________________________

WAVELENGTH:             ## MATERIAL OMITTED AND SEPARATELY FILED UNDER A REQUEST
                        --------------------------------------------------------
                        FOR CONFIDENTIAL TREATMENT ##
                        ----------------------------

INDEX OF REFRACTION:    __________________________________

CALIBRATION VALUE:      __________________________________

DATE: __________________________________

<TABLE>
<CAPTION>
- ---------------------------------------------------------------------------------------------------------------------
Fibre   Measurement   Measurement    Average                Fibre   Measurement   Measurement       Average 
Number                            Optical loss  Reflecto.   Number                            Optical loss  Reflecto.
          in dB:        in dB:                                        in dB:        in dB:                            Total average
          way OE        way EO      dB    dB/Km   dB                  way OE        way EO      dB    dB/Km   dB      in:
                                                                                                                        dB    dB/Km
                                                                                                                        |_|    |_|
<S>     <C>           <C>          <C>                      <C>     <C>           <C>          <C>
- ---------------------------------------------------------------------------------------------------------------------

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

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

- --------------------------------------------------------------------------------------------------------------------- Measured

- --------------------------------------------------------------------------------------------------------------------- minimum value

- --------------------------------------------------------------------------------------------------------------------- in dB    | |

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

- --------------------------------------------------------------------------------------------------------------------- Measured 

- --------------------------------------------------------------------------------------------------------------------- maximum value

- --------------------------------------------------------------------------------------------------------------------- in dB    | |

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

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

- ---------------------------------------------------------------------------------------------------------------------
- ---------------------------------------------------------------------------------------------------------------------
Measured by: (2)                Transmitted to HERMES by ALCATEL:              Returned by HERMES for acceptance:
Name:                           Name:                                          Name:
                                Date:                                          Date:
Signature:                      Signature:                                     Signature:
- ---------------------------------------------------------------------------------------------------------------------
(1) Delete as necessary                       (2) ALCO or COUNTRY RAILWAYS
</TABLE>

<PAGE>   61

APPENDIX 4 (ISSUE 6.0) PAGE 19/24

                                                              [LOGO FOR ALCATEL]

- -----------------------
NEW OR LEASED CABLE (1)
- -----------------------

                   TEST RECORD FOR ACCEPTANCE TEST CERTIFICATE
- --------------------------------------------------------------------------------
                                  REFLECTOGRAM
- --------------------------------------------------------------------------------
CABLE ROUTE:                                    Link or Section (1):
                                 SSF or DSF (1)
- --------------------------------------------------------------------------------
Number of fibres:             Fibre No:               measured from:
- --------------------------------------------------------------------------------




















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

Date:                              Measured by: (2)  Name:

                                                Signature:

- --------------------------------------------------------------------------------
Transmitted to HERMES by ALCATEL:        Returned by HERMES  to ALCATEL for 
                                         acceptance:

Name:                                    Name:

Date:                                    Date:

Signature:                               Signature:
- --------------------------------------------------------------------------------
(1): Delete as necessary 
(2): ALCO or COUNTRY RAILWAYS

<PAGE>   62

                             CONFIDENTIAL TREATMENT

APPENDIX 5 (ISSUE 6.0) PAGE 20/24
- ---------------------------------------
NEW OR LEASED CABLE (1)                                       [LOGO FOR ALCATEL]
- ---------------------------------------
FACTORY OR FIELD (1) MEASUREMENT VALUES

                          MONOMODE OPTICAL FIBRE CABLE
                          TEST RECORD FOR POLARIZATION MODE DISPERSION

CABLE ROUTE:  ____________________________________________ SSF OR DSF (1)
LINK (1)
OR          (ORIGIN (0):     _________________________________
SECTION)    )
            (EXTREMITY: (e)  _________________________________

CABLE MANUFACTURER:          _________________________________
                           
NUMBER OF FIBRES:            _________________________________
                           
FIBRE MANUFACTUER:           _________________________________
                       
TEST EQUIPMENT:              _________________________________
(Make, Model and Serial Number) 

WAVELENGTH:             ## MATERIAL OMITTED AND SEPARATELY FILED UNDER A REQUEST
                        --------------------------------------------------------
                        FOR CONFIDENTIAL TREATMENT ##
                        ----------------------------

INDEX OF REFRACTION:    __________________________________

NUMBER OF SPLICES:      __________________________________

MEASURED LENGTH:        __________________________________

DATE: __________________________________

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

Fibre number     PMD        Fibre number   PMD            REMARKS
            in pS/(sq.rt.)Km            in pS/(sq.rt.)Km   
                                                           
- --------------------------------------------------------
                                                           
- --------------------------------------------------------
                                                           
- --------------------------------------------------------
                                                           
- --------------------------------------------------------   Measured
                                                           
- --------------------------------------------------------   minimum value    | |
                                                           
- --------------------------------------------------------   Measured 
                                                           
- --------------------------------------------------------   maximum value    | |
                                                      
- --------------------------------------------------------

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

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

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

- --------------------------------------------------------
                                                    
- --------------------------------------------------------------------------------
Measured by (2)    Transmitted to HERMES by ALCATEL     Returned by HERMES to
                                                        ALCATEL for acceptance:
Name:              Name:                                Name:
                   Date:                                Date:
Signature:         Signature:                           Signature:
- --------------------------------------------------------------------------------
(1): Delete as necessary: 
(2): ALCO or COUNTRY RAILWAYS

<PAGE>   63

APPENDIX 6 (ISSUE 6.0) PAGE 21/24

                                                              [LOGO FOR ALCATEL]

- ------------------------
LEASED CABLE [ILLEGIBLE]
- ------------------------
FIELD MEASUREMENT VALUE

                   TEST RECORD FOR ACCEPTANCE TEST CERTIFICATE
- --------------------------------------------------------------------------------
                          POLARIZATION MODE DISPERSION
- --------------------------------------------------------------------------------
CABLE ROUTE:                                    Link or Section (1):
                                 SSF or DSF (1)
- --------------------------------------------------------------------------------
Number of fibres:             Fibre No:               measured from:
- --------------------------------------------------------------------------------




















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

Date:                              Measured by: (2)  Name:

                                                Signature:
- --------------------------------------------------------------------------------
Transmitted to HERMES by ALCATEL:        Returned by HERMES to ALCATEL 
                                         for acceptance:

Name:                                    Name:

Date:                                    Date:

Signature:                               Signature:
- --------------------------------------------------------------------------------
(1): Delete as necessary                 (2): ALCO or COUNTRY RAILWAYS

<PAGE>   64

                             CONFIDENTIAL TREATMENT

APPENDIX 7 (ISSUE 6.0) PAGE 22/24
- ---------------------------------------
NEW OR LEASED CABLE (1)                                       [LOGO FOR ALCATEL]
- ---------------------------------------
FACTORY OR FIELD (1) MEASUREMENT VALUES

                      TEST RECORD FOR CHROMATIC DISPERSION

CABLE ROUTE:  ____________________________________________ SSF OR DSF (1)
LINK (1)
OR          (ORIGIN (0)      _________________________________
SECTION)    ) 
            (EXTREMITY (E)   _________________________________

CABLE MANUFACTURER:          _________________________________
                           
NUMBER OF FIBRES:            _________________________________
                           
FIBRE MANUFACTUER:           _________________________________
                       
TEST EQUIPMENT:              _________________________________
(Make, Model and Serial Number) 

WAVELENGTH:             ## MATERIAL OMITTED AND SEPARATELY FILED UNDER A REQUEST
                        --------------------------------------------------------
                        FOR CONFIDENTIAL TREATMENT ##
                        ----------------------------

INDEX OF REFRACTION:    __________________________________

MEASURED LENGTH:        __________________________________

DATE: __________________________________

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

Fibre number     CD      Fibre number      CD              REMARKS
            in pS/nm, Km               in pS/nm, Km        
                                                           
- ----------------------------------------------------       
                                                           
- ----------------------------------------------------       
                                                           
- ----------------------------------------------------       
                                                           
- ----------------------------------------------------       Measured
                                                           
- ----------------------------------------------------       minimum value    |_|
                                                           
- ----------------------------------------------------       Measured 
                                                           
- ----------------------------------------------------       maximum value    |_|
                                                     
- ----------------------------------------------------

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

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

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

- ----------------------------------------------------
                                                    
- --------------------------------------------------------------------------------
Measured by (2)    Transmitted to HERMES by ALCATEL   Returned by HERMES 
                                                      to ALCATEL for acceptance:
Name:              Name:                              Name:
                   Date:                              Date:
Signature:         Signature:                         Signature:
- --------------------------------------------------------------------------------
(1): Delete as necessary                       
(2): ALCO or COUNTRY RAILWAYS

<PAGE>   65

APPENDIX 8 (ISSUE 6.0) PAGE 23/24

                                                              [LOGO FOR ALCATEL]

- ------------------------
LEASED CABLE [ILLEGIBLE]
- ------------------------
FIELD MEASUREMENT VALUE

                   TEST RECORD FOR ACCEPTANCE TEST CERTIFICATE
- --------------------------------------------------------------------------------
                              CHROMATIC DISPERSION
- --------------------------------------------------------------------------------
CABLE ROUTE:                                    Link or Section (1)
                                 SSF or DSF (1)
- --------------------------------------------------------------------------------
Number of fibres:             Fibre No:               measured from:
- --------------------------------------------------------------------------------




















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

Date:                              Measured by: (2)  Name:

                                                Signature:
- --------------------------------------------------------------------------------
Transmitted to HERMES by ALCATEL         Returned by HERMES to ALCATEL 
                                         for acceptance:

Name:                                    Name:

Date:                                    Date:

Signature:                               Signature:
- --------------------------------------------------------------------------------
(1): Delete as necessary                 (2): ALCO or COUNTRY RAILWAYS

<PAGE>   66

                               [LOGO FOR ALCATEL]

7 - HISTORY

- --------------------------------------------------------------------------------
Status                   Date               Author          Details of change
- --------------------------------------------------------------------------------
Draft Issue 0.1.   23 novembre 1995    Michel LAURENT          First Draft
- --------------------------------------------------------------------------------
  Issue 1.0.      8 decembre 1995      Michel LAURENT             Minor
                                                              modifications
                                                               agreed with 
                                                                 HERMES
- --------------------------------------------------------------------------------
  Issue 2.0.      25 mars 1996         Daniel CHALAMET        UPDATE for Beta
                                                             Trial and Phase 1


- --------------------------------------------------------------------------------
  Issue 3.0.      10 avril 1996        Daniel CHALAMET      Modifications after
                                                               the meeting
                                                              ALCATEL/HERMES
                                                             on April 4th 1996
- --------------------------------------------------------------------------------
  Issue 4.0.      02 mai 1996          Daniel CHALAMET      Modifications after
                                                               the meeting 
                                                              ALCATEL/HERMES
                                                              on May 02th 1996
- --------------------------------------------------------------------------------
  Issue 5.0.      22 August 1996       Daniel CHALAMET      Modifications after
                                                               the meeting
                                                              ALCATEL/HERMES
                                                            on August 22th 1996
- --------------------------------------------------------------------------------
  Issue 6.0.      29 August 1996       Daniel CHALAMET      Modifications after
                                                                the meeting
                                                               ALCATEL/HERMES
                                                            on August 29th 1996
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------

29 August 1995            OPTICAL CABLE SPECIFICATIONS               Page 24/24


ALCATEL 1996                        Issue 6.0
<PAGE>   67

                             CONFIDENTIAL TREATMENT

                                                                Confidential

                            TECHNICAL SPECIFICATION

                                     PART I

                              Service Definitions

1. Backbone Services

Backbone Services are defined between HER Points of Presence that serve the
Participating Railway. They are provided via the Hermes Europe Railtel
Trans-European Network, which is a fully meshed fiberoptic network that is
SDH-compatible running at ## MATERIAL OMITTED AND SEPARATELY FILED UNDER A
REQUEST FOR CONFIDENTIAL TREATMENT ##

"Standard" and "Premium" service levels are available (see below). Both are
supported by the Service Level Agreement in Part II.

1.1 Service Bandwidths and Interfaces

Backbone services are available in the following bandwidth/interface
combinations:

- --------------------------------------------------------------------------------
Bandwidth                           Interface
- --------------------------------------------------------------------------------
VC-12 (2.04S Mb/s)                  G.703 at 2.048 Mb/s (PDH electrical)
                                    G.703 at 155.520 Mb/s (SDH electrical)
                                    G.957 at 155.520 Mb/s (SDH optical)

VC-3 (34.368 Mb/s)                  G.703 at 34.368 Mb/s (PDH electrical)
                                    G.703 at 155.520 Mb/s (SDH electrical)
                                    G.957 at 155.520 Mb/s (SDH optical)

VC-3 (44.736 Mb/s)                  G.703 at 155.520 Mb/s (SDH electrical)
                                    G.957 at 155.520 Mb/s (SDH optical)

VC-4 (139.264 Mb/s)                 G.703 at 139.264 Mb/s (PDH electrical)

STM-1 (155.520 Mb/s)                G.703 at 155.520 Mb/s (SDH electrical)
                                    G.957 at 155.520 Mb/s (SDH optical)
- --------------------------------------------------------------------------------

Uni-directional, bi-directional, or broadcast configurations are available.


                                                                         1 of 11
<PAGE>   68

                             CONFIDENTIAL TREATMENT

                                                                Confidential

1.2 Basic Service

Basic service is offered only to locations where, due to the logistics of
network rollout, only one fiber-optic path exists between two locations. All
procedures and performance measures in the Service Level Agreement apply.

- --------------------------------------------------------------------------------
Characteristic                      Standard
- --------------------------------------------------------------------------------
Availability                        Not guaranteed

Restoration mechanism               Time to repair
(fiber outage)

Diversity                           Single route between HER POPs
- --------------------------------------------------------------------------------

Note that Basic service is only a temporary service existing. Subject to
existing contractual commitments, the offering will be withdrawn once Standard
and Premium are available to the location (multiple fiberoptic paths exist).

1.3 Standard service

Standard service has as a prerequisite minimum the availability of two
fiber-optic paths operational between locations. It is designed with extensive
redundancy built-in for high availability performance. The following table
indicates the design criteria and guaranteed operational performance; please see
Schedule 2 for details of the service level agreements.

- --------------------------------------------------------------------------------
Characteristic                      Standard
- --------------------------------------------------------------------------------
Availability                        Target: ## MATERIAL OMITTED AND SEPARATELY 
                                            FILED UNDER A REQUEST FOR 
                                            CONFIDENTIAL TREATMENT ##

                                    Guarantee: ## MATERIAL OMITTED AND 
                                               SEPARATELY FILED UNDER A REQUEST 
                                               FOR CONFIDENTIAL TREATMENT ##

Restoration mechanism               Operator re-routing
(fiber outage)

Diversity                           Multiple routes between HER POPs

Guaranteed SLA                      Yes
- --------------------------------------------------------------------------------

1.4 Premium Service

Premium service is designed with a dedicated protection path that is physically
diverse end-to-end for highest availability performance. The following table
shows the characteristics that are different to Standard; please also see
Schedule 2 for details of the service level agreements.

- --------------------------------------------------------------------------------
Characteristics                     Standard
- --------------------------------------------------------------------------------

Availability                        Target: ## MATERIAL OMITTED AND SEPARATELY 
                                            FILED UNDER A REQUEST FOR 
                                            CONFIDENTIAL TREATMENT ##

                                    Guarantee: ## MATERIAL OMITTED AND 
                                               SEPARATELY FILED UNDER A REQUEST 
                                               FOR CONFIDENTIAL TREATMENT ##

Restoration mechanism               ## MATERIAL OMITTED AND SEPARATELY FILED 
(fiber outage)                      UNDER A REQUEST FOR CONFIDENTIAL TREATMENT 
                                    ## automatic switch

Diversity                           ## MATERIAL OMITTED AND SEPARATELY FILED 
                                    UNDER A REQUEST FOR CONFIDENTIAL TREATMENT 
                                    ## end-to-end physically diverse paths

Guaranteed SLA                      Yes (see SLA for details)
- --------------------------------------------------------------------------------


                                                                         2 of 11
<PAGE>   69

                                                       Confidential

                                    PART II

                            Service Level Agreement

1. Purpose of the Agreement

This document sets out agreed standards and procedures for the provisioning
(service delivery) and operations (fault and performance management) of services
provided by HER to the Participating Railway.

This agreement also sets out measurable entities that allow periodic reviews of
the quality of the provisioning and operations of HER services.


2.       Definitions

ADM               Add/Drop Multiplexer
AMI               Alternate Mark Inversion (line code)
Backbone          HER network between two HER POPs
BIS               Bringing-Into-Service
CS                Customer Services
CSC               Customer Services Centre
EI                2.048 Mb/s providing 1984 kb/s usable bandwidth
G.826             Long-term network performance standard defined by ITU-T
HDB3              High Desity Bipolar 3 (line code)
HER               Hermes Europe Railtel
ITU               Int'l Telecommunications Union
M.2100            Short-term network performance standard defined by ITU-T
NOC               Network Operations Centre
OPS               Operations
PDH               Plesiochronous Digital Hierarchy
SDH               Synchronous Digital Hierarchy
POP               Point Of Presence
SLA               Service Level Agreement

3. Service Delivery

3.1 General Principles

Service delivery is defined as the period between receipt of HER Service Order
and handover of acceptance-tested operational service. HER will accept Service
Orders up to 3 months prior to the planned 'live' date of a HER node.

This process will be managed through single points of contact from both the
Participating Railway and HER; the HER contact will be assigned upon receipt of
Service Order.

3.2 Service Planning Schedule

HER Backbone services will be provided to locations according to the schedule
shown in paragraph 3 of Schedule 5. This schedule will be updated via controlled
document issued to the customer on a quarterly basis.


                                                                         3 of 11
<PAGE>   70

                                                       Confidential

3.3 Service Order Placement

Service Orders may be initiated via fax or E-Mail to the HER point of contact
listed above, and must contain at minimum the following information:

o     request service delivery date
o     type of service required (Standard, Premium)
o     details of bandwidth required including interfacing details
o     the Participating Railway single point of contact for service delivery
      planning

Alternatively, the Participating Railway may proceed directly to complete a
Service Order.

Upon receipt of Service Order, HER will confirm to the Participating Railway
that order is received via fax or E-mail. HER will in parallel determine whether
the requested date is feasible, and will confirm this within 3 days.

HER will then confirm this by sending the complete and verified HER Service
Order with above details and a "Committed Service Delivery Date". This must then
be signed by the contracting party, and returned to HER single point of contact
above.

3.4 Installation

If the Participating Railway requires the service, at the Participating
Railway's cost, HER will provide a service design and coordinate with the
Participating Railway's specified contact persons all installation activities.
Depending on the contracted service, this may include:

o     local access provider equipment installation in the Participating
      Railway's Points of Presence
o     the Participating Railway or local access provider equipment installation
      in HER Points of Presence.

3.5 Acceptance Testing and Commissioning

HER will coordinate with the Participating Railway-specified contact persons all
acceptance testing activities. Depending on the contracted service, this may
include:

o     local access network BIS testing
o     HER end-to-end service BIS testing

3.6 Handover

Upon successful results from HER end-to-end BIS testing, a certificate will be
provided to the Participating Railway. the Participating Railway shall then have
72 hours, measured from time of receipt of HER BIS results, to perform its
internal testing. At end of this period, billing shall commence unless the
Participating Railway notifies HER that its tests have failed, and agreement is
reached with HER to extend BIS testing.

3.7 Escalation

if the stated delivery standards are not met, the following escalation sequence
should be used to find a satisfactory solution.

- --------------------------------------------------------------------------------
Contact Level          Name                      Tel. No.          Fax number
- --------------------------------------------------------------------------------
1st Level              CS Manager                658-5260          658-5107
- --------------------------------------------------------------------------------
2nd Level              John Shearing             658-5260          658-5107
                       Operations Director
- --------------------------------------------------------------------------------


                                                                         4 of 11
<PAGE>   71

                                                       Confidential

Fault Management

24Hrs/7 Days Fault Reporting Contact

All faults be reported to the HER Customer Service Centre. When the local access
network is provided by HER, note that local access providers must not be
contacted directly. This to ensure HER CSC controls all activities.

Phone  :  32-2-658-5252
Fax    :  32-2-658-5105
E-mail :  [email protected]

All faults detected by HER shall be reported to a single the Participating
Railway point of contact.

Fault Reporting Procedure/Information

HER to the Participating Railway

HER will phone the Participating Railway within 15 minutes of problem detection
and provide

o     ID's of affected paths
o     start time of problem
o     nature of problem (degraded/down)
o     HER trouble-ticket reference number
o     estimated time repair (if problem is still not solved)

Fault repair will be done using non-service degrading tests to diagnose and
correct the problem; service degrading tests will be done after consent from the
Participating Railway. These may include:

o     service interruption
o     intrusive tests to the Participating Railway equipment

HER will update the Participating Railway every 30 mins. until problem is
repaired.

the Participating Railway to HER

the Participating Railway will contact HER CSC; for expediency purposes, phone
contact is preferable. the Participating Railway should provide the following
details:

o     customer ID
o     contact name
o     the Participating Railway trouble-ticket reference
o     nature of problem (degraded/down)
o     ID's of affected paths
o     start time of problem
o     can service be taken down for testing?


                                                                         5 of 11
<PAGE>   72

                                                       Confidential

HER will immediately log the report in a trouble-ticket, provide the
trouble-ticket reference number, and begin fault localisation. HER will contact
the Participating Railway within 15 minutes with a problem description, and an
estimated time to repair (if problem is still not solved).

HER will update the Participating Railway every 30 mins. until problem is
repaired.

Fault Clearance Procedure

After service is repaired, HER will monitor for 10 mins. If service is stable,
HER will report fault clearance to the Participating Railway within 5 minutes.
Upon the Participating Railway agreement, the trouble-ticket will be cleared,
and HER will provide the Participating Railway.

o     fault ticket number
o     time of fault clearance
o     cause of the fault
o     corrective action taken

      Fault clearance details are included in the monthly performance report
      (see section 9.4).

the Participating Railway Site Access

the Participating Railway must provide 24-hour access to its premises to HER
and/or local access provider personnel to perform tests as required. HER will
provide to the Participating Railway identification details of the person(s)
arriving, and tests description.

Escalation

Customer Escalation

if the problem is not being addressed in a satisfactory manner, the following
escalation sequence is available for the Participating Railway.

- --------------------------------------------------------------------------------
Contact        Contact function &           Tel number       Fax number
level          name(s)
- --------------------------------------------------------------------------------
1st Level      Shift Leader                 658-5252          658-5107
- --------------------------------------------------------------------------------
2nd Level      John Shearing                658-5260          658-5107
               CSC Manager
- --------------------------------------------------------------------------------
3rd Level      John Shearing                658-5260          658-5107
               Operations Director
- --------------------------------------------------------------------------------

HER internal

The following escalation/awareness sequence will be used by HER as governed by
duration of the Participating Railway service interruption.

- --------------------------------------------------------------------------------
Contact           Contact function          Time since fault
level                                       logged
- --------------------------------------------------------------------------------
1st Level         Shift Leader              Immediate
- --------------------------------------------------------------------------------
2nd Level         NOC/CSC Manager           2 hrs.
- --------------------------------------------------------------------------------
3rd Level         Operations Director       4 hrs.
- --------------------------------------------------------------------------------


                                                                         6 of 11
<PAGE>   73

                             CONFIDENTIAL TREATMENT

                                                               Confidential

Planned Works Notification Procedure

HER and local access providers will from time to time undertake scheduled
service-affecting works. HER will inform the Participating Railway by fax
containing the proposed time and date, duration, and description of any such
works. HER has a target of 30 days advance notice. If the proposed time and date
are not acceptable, the Participating Railway must reply immediately with a
preferred alternative. If agreement cannot be reached, HER will decide the time
and date at its discretion, but with the target to minimize the participating
Railway inconvenience.

Planned works are not included in service availability calculations, but are
included in the monthly performance report.

the Participating Railway contacts for planned works notification are to be
formally specified.

Performance Management

Performance management will be reported using the measurable items described in
sections 5 and 6. The individual items and their definitions are listed below.

Availability

Guaranteed Service Availability (mo.)               XX.X% (service-dependent)

      (An outage is defined as ## MATERIAL OMITTED AND SEPARATELY FILED UNDER A
REQUEST FOR CONFIDENTIAL TREATMENT ## or more consecutive Severely Errored
Seconds as per ITU-T M.2100. The availability formula used is: ## MATERIAL
OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR CONFIDENTIAL TREATMENT ##. Note
that planned works and outages prolonged by inability to access the
Participating Railway POP are excluded. Credits may be available where
guaranteed service availability levels are not met. Please see main Agreement.)

Time To Repair (per event)         ## MATERIAL OMITTED AND SEPARATELY FILED 
                                   UNDER A REQUEST FOR CONFIDENTIAL TREATMENT ##

      (Time to Repair is defined as the time from actual service unavailability
until fault clearance is agreed between HER and the Participating Railway. Mean
time to repair is the monthly average.)

Error Performance (mo.)            G.826 complaint

      (Error performance will report ES and SES measured on a monthly average
basis)

Service Provisioning

Service order acknowledgment       3 days (under investigation)

      (HER will provide a service delivery date within 3 days of acknowledgment
of receipt of purchase order)

Guaranteed Committed Connect Date  By committed date

      (Committed connect date is defined as after successful service acceptance
test by HER and initial 'handover' to the customer. Credits are available where
committed connect dates are not observed. Please see "Service Quality" section
of main Agreement.)


                                                                         7 of 11
<PAGE>   74

                             CONFIDENTIAL TREATMENT

                                                               Confidential

Provisioning lead time

         Existing infrastructure          ## MATERIAL OMITTED AND SEPARATELY 
                                          FILED UNDER A REQUEST FOR CONFIDENTIAL
                                          TREATMENT ##
         New access facilities required   ## MATERIAL OMITTED AND SEPARATELY 
                                          FILED UNDER A REQUEST FOR CONFIDENTIAL
                                          TREATMENT ## (under investigation)

      (HER will endeavour to 'handover' with BIS test results all services that
do not require additional physical facilities (only software configuration)
within 3 days of Service Order acknowledgment. Where new access facilities are
required, 8 weeks is the target. The timer is triggered by the Participating
Railway acceptance of the provisioning date provided in the service order
acknowledgment)

Fault Management

Fault detection            ## MATERIAL OMITTED AND SEPARATELY FILED UNDER A 
                           REQUEST FOR CONFIDENTIAL TREATMENT ##

      (HER will log all faults in its Problem Management System within ##
MATERIAL OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR CONFIDENTIAL TREATMENT
## of the fault being detected by HER Network Operations Centre or reported by
the Participating Railway.)

Customer notification      ## MATERIAL OMITTED AND SEPARATELY FILED UNDER A 
                           REQUEST FOR CONFIDENTIAL TREATMENT ##

      (HER will notify the Participating Railway if affected by the fault within
## MATERIAL OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR CONFIDENTIAL
TREATMENT ## of the fault having been detected.)

Fault progress reporting   every  ## MATERIAL OMITTED AND SEPARATELY FILED UNDER
                           A REQUEST FOR CONFIDENTIAL TREATMENT ##

      (HER will keep the Participating Railway informed of the fault status with
expected clearance times every 30 minutes during which the fault remains
service-affecting)

Fault clearance 
notification               ## MATERIAL OMITTED AND SEPARATELY FILED UNDER A 
                           REQUEST FOR CONFIDENTIAL TREATMENT ##

      (HER will notify the Participating Railway of fault clearance, and seek
approval from the Participating Railway to clear the fault within ## MATERIAL
OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR CONFIDENTIAL TREATMENT ## of
the fault having been repaired.)

Planned works notification

                           Notice provided                    30 days
                           Duration within expectation        (y/n)

      (HER will report the notice provided per instance of planned works, and
whether the expected duration was exceeded.)

Performance Reporting Procedure

Performance report containing all measures in this section, including detailed
description of any faults, will be provided on a monthly basis to the
Participating Railway contacts specified by the Participating Railway.


                                                                         8 of 11
<PAGE>   75

                                                            Confidential

Contacts

The following contacts must be documented for each new Service Order through the
Service Delivery process and kept current.

Service delivery - (planning, arrange site access)

- --------------------------------------------------------------------------------
Organisation         Name        Telephone              Fax              E-mail
- --------------------------------------------------------------------------------
the Participating
Railway

HER -
planning
HER -
site access
- --------------------------------------------------------------------------------

Escalation within HER:

- --------------------------------------------------------------------------------
Contact Level         Name                Tel. No.              Fax number
- --------------------------------------------------------------------------------
1st Level             CS Account Mngr       TBA                   TBA

2nd Level             CS Manager            TBA                   TBA

3rd Level             OPS Director          TBA                   TBA

Out of Hours          NOC                   TBA                   TBA
- --------------------------------------------------------------------------------

Service handover with BIS results

- --------------------------------------------------------------------------------
Organisation          Name          Telephone           Fax            E-mail
- --------------------------------------------------------------------------------
the
Participating
railway

HER
- --------------------------------------------------------------------------------


                                                                         9 of 11
<PAGE>   76

                                                            Confidential

24-hour fault reporting

- --------------------------------------------------------------------------------
Organisation        Name         Telephone              Fax              E-mail
- --------------------------------------------------------------------------------
the
Participating
railway

HER
- --------------------------------------------------------------------------------

Escalation within HER:

- --------------------------------------------------------------------------------
Contact Level     Contact function & name(s)  Tel. Number.      Fax number
- --------------------------------------------------------------------------------
1st Level         Shift Leader                    TBA              TBA

2nd Level         NOC Manager                     TBA              TBA

3rd Level         OPS Director                    TBA              TBA
- --------------------------------------------------------------------------------

24/7 the Participating Railway POP access for fault management

- --------------------------------------------------------------------------------
Organisation        Name         Telephone           Fax              E-mail
- --------------------------------------------------------------------------------
the
Participating
railway

HER
- --------------------------------------------------------------------------------

Planned works notification

- --------------------------------------------------------------------------------
Organisation         Name         Telephone           Fax              E-mail
- --------------------------------------------------------------------------------
the
Participating
railway

HER
- --------------------------------------------------------------------------------

the Participating Railway performance report distribution list

- --------------------------------------------------------------------------------
Name              Address
- --------------------------------------------------------------------------------

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

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


                                                                        10 of 11
<PAGE>   77

                                                        Confidential

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

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

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


                                                                        11 of 11

<PAGE>   1

                             CONFIDENTIAL TREATMENT

                                                     Exhibit 10.13

Note: Portions of the Exhibit have been omitted pursuant to a request for
confidential treatment filed with the SEC under Rule 406. The omitted
confidential material has been filed separately with the SEC. The location of
the omitted confidential information is indicated herein by a legend stating,
"MATERIAL OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR CONFIDENTIAL
TREATMENT."

- --------------------------------------------------------------------------------
              Convention concerning availability of optical fibres
- --------------------------------------------------------------------------------

Between the undersigned:

1 - La Societe des Autoroutes du Nord et de l'Est de la France (Company for
Motorways in Northern and Eastern France), whose registered office is located at
41 bis avenue Bosquet, 75007 PARIS, a corporation registered in the PARIS Trade
and Companies Register under No. B 632 050 019, represented by Mr. Michel
AMILHAT, its managing director,

                                         hereinafter designated as "the SANEF",

                                                        party of the first part,

and;

2 - The Company HERMES EUROPE RAILTEL B.V., whose registered office is at
Drentestraat 20, 1083 HK Amsterdam, Netherlands, registered in the Almere Trade
Register under No. 55004, represented by Mr. Jan LOEBER, its managing director,

                                       hereinafter designated as "the OPERATOR",

                                                       party of the second part,

The SANEF and the OPERATOR being designated collectively as "the Parties".
<PAGE>   2

                                                                               2


                                    CONTENTS

1. PREAMBLE

2. DEFINITIONS

3. PURPOSE

4. LEGAL NATURE AND SCOPE OF THE CONVENTION

4.1 AUTHORISATION TO OCCUPY THE PUBLIC DOMAIN
4.2 INTUITU PERSONAE
4.3 EXCLUSIVITY
4.4 CONTRACTUAL RELATIONSHIPS - VALIDITY
4.5 EQUAL TREATMENT
4.6 MISCELLANEOUS

5. PARTIES' CONTACTS

6. INTELLECTUAL PROPERTY - CONFIDENTIALITY

6.1 INTELLECTUAL PROPERTY
6.2 CONFIDENTIALITY

7. EFFECTIVE DATE - DUARATION - RENEWAL

7.1 EFFECTIVE DATE
7.2 DURATION
7.3 RENEWAL

8. COOPERATION BETWEEN PARTIES

8.1 GENERAL PRINCIPLES
8.2 MONITORING COMMITTEE
8.3 CONNECTION

9. AVAILABILITY OF F.O.N. AND OF SITES

9.1 FIRM SERVICES
      9.1.1 Content
      9.1.2 deadlines
      9.1.3 special conventions regarding Site availability
9.2 ADDITIONAL SERVICES
      9.2.1 Informing the OPERATOR
      9.2.2 Request for additional F.o.n.
      9.2.3 Request for optional F.o.n.
      9.2.4 Making additional F.o.n available

10. TECHNICAL PROVISIONS RELATIVE TO THE WORK

10.1 INSTALLATION OF THE F.O.N.
10.2 SITES
      10.2.1 Evaluation of OPERATOR's needs 
      10.2.2 Improvement of the SANEF sites
      10.2.3 Construction of Sites by the OPERATOR 
      10.2.4 OPERATOR's equipment installation 
      10.2.5 Use and maintenance of the Sites

11. TECHNICAL PROVISIONS RELATIVE TO OPERATIONS

11.1 ACCEPTANCE
      11.1.1 Acceptance of the F.o.n. by the SANEF
      11.1.2 Acceptance of the F.o.n. by the OPERATOR
<PAGE>   3

                                                                               3


                             CONFIDENTIAL TREATMENT

      11.1.3 Acceptance of the SANEF Sites 
      11.1.4 Acceptance of an Equipped Motorway Section 
      11.1.5 Compliance of the OPERATOR Sites 
      11.1.6 compliance of the OPERATOR's technical equipment 
11.2 MAINTENANCE 
      11.2.1 Preventive maintenance
      11.2.2 Remedial maintenance 
      11.2.3 Maintenance of the OPERATOR's Installation and Sites 
      11.2.4 Maintenance of the SANEF Sites 
11.3 WITHDRAWAL OF THE OPERATOR's EQUIPMENT AND SITES 
      11.3.1 Withdrawal of the equipment of the SANEF Sites 
      11.3.2 Withdrawal of the OPERATOR Sites 
      11.3.3 Penalties

12. GENERAL CONDITIONS REGARDING INSTALLATION AND OPERATION

12.1 ACCESS TO THE EQUIPMENT
12.2 WORK ON THE MOTORWAY NETWORK
12.3 WORK ON THE TELECOMMUNICATIONS NETWORK

13. LIABILITY

13.1 GENERAL PRINCIPLE
13.2 EQUIPMENT COMPATIBILITY AND MAINTENANCE
13.3 INSURANCE

14. FINANCIAL PROVISIONS

14.1 FEES
14.2 REVISION
14.3 PAYMENT AND INVOICING PROCEDURES 
      14.3.1 Downpayment 
      14.3.2 Prefinancing option 
      14.3.3 Payment of prefinancing of the F.o.n.
      14.3.4 Payment procedures regarding the fees for availability of the 
             F.o.n. and of the Sites

15. DECLARATIONS AND GUARANTEES

16 CANCELLATION

16.1 CANCELLATION BEFORE THE AVAILABILITY DATE OF THE LAST OF THE EQUIPPED 
     MOTORWAY SECTIONS TO BE DELIVERED IN 1997
      16.1.1 Cancellation in case the OPERATOR prefinances
      16.1.2 Cancellation in case the OPERATOR does not prefinance
16.2 CANCELLATION AFTER THE AVAILABILITY DATE OF THE LAST OF THE EQUIPPED
     MOTORWAY SECTIONS TO BE DELIVERED IN 1997 
      16.2.1 Cancellation within ## MATERIAL OMITTED AND SEPARATELY FILED UNDER 
             A REQUEST FOR CONFIDENTIAL TREATMENT ## years
      16.2.2 Cancellation after ## MATERIAL OMITTED AND SEPARATELY FILED UNDER A
             REQUEST FOR CONFIDENTIAL TREATMENT ## years

17. FORCE MAJEURE

18. CONDITION SUBSEQUENT

19. DISPUTES

20. ELECTION OF DOMICILE

21. APPENDICES
<PAGE>   4

                                                                               4


                             CONFIDENTIAL TREATMENT

1. Preamble

      1.    By virtue of a convention concerning concession of construction,
            maintenance and operation of motorways concluded with the State on
            June 27, 1990, and approved by a Council of State decree on October
            29, 1990, the SANEF is the concessionaire of a motorway network
            located in Northern and Eastern France (autoroutes ## MATERIAL
            OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR CONFIDENTIAL
            TREATMENT ##).

      2.    On certain sections of its network described in Appendix 1 to the
            present Convention, the SANEF intends to deploy black optical fibres
            in order to improve the conditions of operating the motorway public
            service for which it is responsible. The SANEF also wishes to
            reserve the part of the optical fibres it does not use for third
            party operators working in the telecommunications field.

      3.    The OPERATOR intends to install and exploit a telecommunications
            network within the framework of article I. 33-1 of the
            Telecommunications Code, and it filed an authorisation application
            for this purpose on November 15, 1996.

      4.    The Parties have consulted each other on a project under which the
            SANEF would make a certain number of black optical fibres along its
            motorway network available to the OPERATOR.

      5.    The present Convention falls within the framewotk of the principles
            of the law of July 26, 1996, regulating telecommunications, and
            hence will observe strict equality of treatment among the various
            operators in connections with making F.o.n. available on the
            equipped motorway sections (cf. the following definitions).

 HAVING SET FORTH THESES PREMISES, NOW THEREFORE THE PARTIES HEREBY ENTER INTO
                            THE FOLLOWING AGREEMENT:

2. Definitions

      In the present Convention, the Parties agree to give the following
      meanings to the words and expressions designated below:

      1.    Optical Cable: a cable consisting of Black Optical Fibres.

      2.    Connector: this point consists physically of the extremity of an
            F.o.n. connected with a terminal system. This connector, located at
            a Site, is installed and maintained by the SANEF and makes it
            possible to provide a connection between the F.o.n. made available
            to the OPERATOR by the SANEF and the OPERATOR's equipment.

      3     Convention: the present convention and its appendices.

      4.    Availability Date: the date on which the acceptance operations have
            given rise to the OPRATORS's acceptance of an Equipped Motorway
            section.

      5.    F.o.n District: a continuous segment of F.o.n. averaging around ##
            MATERIAL OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR
            CONFIDENTIAL TREATMENT ## kilometres located on an Equipped Motorway
            Section, at the ends of which connectors are generally installed.

      6.    Dysfunction: an anomaly of the F.o.n. not respecting the technical
            specifications laid down in Appendix 4, but not giving rise to an
            interruption.

      7.    Extremity Equipment: the OPERATOR's technical equipment making it
            possible to use an F.o.n.
<PAGE>   5

                                                                               5


      8.    Black Optical Fibre: an optical fibre installed in accordance with
            the SANEF's innovative method or otherwise, lacking any
            telecommunications equipment and designated by the abbreviation
            F.o.n. (Fibre optique noir).

      9.    Interruption: an anomaly preventing any use of one or several F.o.n.

      10.   Equipped Itinerary: a set of Equipped Motorway Sections making it
            possible to connect two extremities of the Motorway Network.

      11.   Day: calendar day

      12.   Operator: a natural or legal person operating a telecommunication
            network open to the public or the supplier of an optical
            connectivity service.

      13.   Pair of F.o.n.: two F.o.n. located in the same Optical cable.

      14.   Secure Pair of F.o.n.: two pairs of F.o.n. located on both sides of
            the motorway and one of which benefits from the "securisation"
            discount in accordance with the price list appearing in Appendix
            No.6.

      15.   R1: the fee to be paid by the OPERATOR to the SANEF in connection
            with availability of the F.o.n.

      16.   R2: the fee to be paid by the OPERATOR to the SANEF in connection
            with availability of the Sites.

      17.   Connection: the link between the Motorway Network Equipped with
            F.o.n. and a third party telecommunications network.

      18.   Motorway Network: the motorways ("autoroutes") for which SANEF is
            the concessionaire.

      19.   Equipped Motorway Network: the motorways in operation for which the
            SANEF holds a concession, equipped with F.o.n. on each side.

      20.   Equipped Motorway Section: the part of the Motorway Network
            consisting of a continuous series of F.o.n. Districts.

      21.   Site: the place where the OPERATOR's equipment is installed and
            generally located in the SANEF's maintenance centres.

      22.   OPERATOR Site: a Site installed by the OPERATOR on the Motorway
            Network.

      23.   SANEF Site: a Site made available to the OPERATOR by the SANEF.

3. Purpose

      The purpose of the Convention is to lay down, together, the terms and
      conditions under which the SANEF undertakes to make F.o.n. and associated
      Sites constituting Equipped Motorway Sections available to the OPERATOR in
      accordance with Appendix 3 and as defined in Appendix No. 1, with a view
      to make their exploitation by the OPERATOR possible.
<PAGE>   6

                                                                               6


4. Legal nature and scope of the Convention

      4.1 Authorisation to occupy the public domain

      Since the Motorway Network is part of the State's motorway public domain,
      the Convention in particular is tantamount to authorisation to occupy the
      motorway public domain, but does not grant the OPERATOR any real property
      rights to the said public domain (article L.34-1 of the State Domain
      Code).

      4.2 Intuitu personae

      The Convention is concluded intuitu personae.

      The Parties may not transfer their rights and obligations under the terms
      of the Convention except with the other Party's written consent in
      advance. The said consent is hereby granted, subject to advance
      notification, in case of transfer to any subsidiary of one of the Parties,
      or to a company belonging to the group of one of the Parties, or to its
      direct or indirect parent company under the same conditions, as long as
      the assignee company is legally authorised to carry on the activities
      making the present Convention possible.

      4.3 Exclusivity

      For its entire duration, the Convention does not grant any exclusive right
      to the OPERATOR for using the F.o.n. installed by the SANEF, with the
      exception of the ones made available to it under the conditions laid down
      in the said Convention.

      4.4 Contractual relationships - Validity

      The present Convention constitutes the totality of the agreements between
      the Parties.

      The illegality or nullity of any provision whatsoever of the Convention
      that is not of an essential nature shall not cast doubt on the validity of
      the other provisions. The Parties agree to replace the invalid provisions
      by provisions coming as close as possible to their joint intention
      expressed within the framework of the Convention. Any modification of the
      present Convention shall be the object of a rider signed by the authorised
      representative of each of the Parties.

      4.5 Equal treatment

      The OPERATOR shall benefit by right from the most favourable treatment
      granted by the SANEF to an Operator placed in a comparable situation and
      for comparable service.

      4.6 Miscellaneous

      The SANEF agrees not to make F.o.n. available to third parties for
      purposes of supplying optical connectivity.

      In case of a modification of the legal or economic environment in which
      the Parties have contracted that has a significant effect on the
      provisions included in the present Convention, the Parties shall confer to
      agree on the related adaptations.
<PAGE>   7

                                                                               7


                             CONFIDENTIAL TREATMENT

5. Parties' Contacts

      Each Party designates the following for application of the Convention:

      1.    For the SANEF: Mr. Helideo COSTA-ELIAS, Manager for Development and
            Modernisation, domiciled at the following address: SANEF 100 avenue
            de SUFFREN, 75015 PARIS.

      2.    For the OPERATOR: Mr John SHEARING, Manager of the Operations and
            Engineering, domiciled at the following address: Hermes Europe
            Railtel - Terhulpsesteenweg 6A, 1560 Joellaart, Belgium,

      each having the option of appointing a substitute or of delegating,
      subject to informing the other Party thereof.

      Notice of a change of address or of the contact of one or the other of the
      Parties shall have to be given by registered mail with receipt.

      Upon signature of the present Convention, the Parties' contacts shall
      send, by registered mail with receipt, the addresses and the telephone and
      fax numbers required for operational management of the present Convention.

6. Intellectual property - Confidentiality

      6.1 Intellectual property

      The SANEF warrants the OPERATOR that it holds the intellectual property
      rights relative to the innovative technique for installation of the F.o.n.
      and the motorway know-how required by this technique.

      6.2 Confidentiality

      The Parties acknowledge that they are bound by the confidentiality
      agreement effective on May 13, 1996, attached in Appendix No. 7.

7. Effective date - Duration - renewal

      7.1 Effective date

      The Convention goes into effect on the date of signature by the Parties.

      7.2 Duration

      It is concluded for a duration of ## MATERIAL OMITTED AND SEPARATELY FILED
      UNDER A REQUEST FOR CONFIDENTIAL TREATMENT ## starting with the date of
      availability of the last of the Equipped Motorway Sections delivered in
      1997 (Appendix 3).

      7.3 Renewal

      The present Convention shall be renewed by tacit extension for a duration
      of ## MATERIAL OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR
      CONFIDENTIAL TREATMENT ## in the absence of termination notice served by
      registered mail with receipt on the other Party at least ## MATERIAL
      OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR CONFIDENTIAL TREATMENT ##
      before the expiration date of the current period.
<PAGE>   8

                                                                               8


      The SANEF will reject renewal only in the following cases:

      1.    The ageing of the Optical Cable does not allow continued
            exploitation;

      2.    The renewal duration would exceed the duration of the concession
            concluded by the SANEF with the State.

8. Cooperation between the Parties

      8.1 General principles

      For the entire duration of the present Convention, the Parties shall
      inform each other about events that could have consequences on proper
      execution of the project that is the object of the present Convention.

      They shall cooperate in a spirit of close collaboration and transparence,
      particularly in connection with the detailed study of the project and of
      its execution. The OPERATOR shall be entitled to indicate the provisions
      it wishes to have included in the project and which, to the greatest
      possible extent, shall be taken into account by the SANEF.

      They shall cooperate in so far as need be in their relationships with the
      competent administration, particularly with a view to proper performance
      of the work and of the acceptances by the OPERATOR.

      The OPERATOR and the SANEF shall assist each other in seeking partners and
      the required technical resources, particularly with respect to
      relationships with the managers of the public domains neighbouring the
      SANEF's Motorway Network.

8.2 Monitoring Committee

      To see to monitoring application of the present Convention, examining the
      conditions of operations of the service and the exact definition of the
      operating procedures, a fully representative committee is instituted to
      meet every quarter-year or, if necessary, at the initiative of one of the
      Parties.

      That committee's meetings shall give rise to the establishment of minutes
      drawn up alternately by each of the Parties providing secretarial services
      for the committee. The approval of the minutes shall be considered as
      given in the absence of remarks made during a period of two weeks
      following transmission thereof.

      The committee's decisions are made with due observance of the provisions
      of the present Convention.

8.3 Connection

      The monitoring committee shall meet upon signature of the present
      Convention to consider whether it is appropriate to contact the managers
      of neighbouring networks for installation of the connection or
      connections.
<PAGE>   9

                             CONFIDENTIAL TREATMENT
                                                                               9


9. Availability of F.o.n. and of Sites

      9.1 Firm services

      9.1.1 Content

      The SANEF shall make the Equipped Motorway Sections available to the
      OPERATOR in accordance with the technical characteristics spelled out in
      Appendix No. 4 and in accordance with the OPERATOR's needs spelled out in
      Appendix No. 3, namely:

      1. ## MATERIAL OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR
      CONFIDENTIAL TREATMENT ##

      2. ## MATERIAL OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR
      CONFIDENTIAL TREATMENT ##

      3. ## MATERIAL OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR
      CONFIDENTIAL TREATMENT ##

      The OPERATOR shall have to implement, at its own expense, the
      telecommunications equipment it needs to use the F.o.n., and particularly
      the hardware and software making it possible, in case of an interruption,
      to shift operations from one F.o.n. to another and vice versa.

      9.1.2 Deadlines

      The F.o.n. and the Sites shall be made available to the OPERATOR at the
      latest on the dates indicated in the schedule attached in Appendix No. 2.

      In case of a delay in availability on an Equipped Itinerary, the SANEF
      shall compensate the OPERATOR by allocating an hourly credit free to it
      relating to availability of the F.o.n. equal to ## MATERIAL OMITTED AND
      SEPARATELY FILED UNDER A REQUEST FOR CONFIDENTIAL TREATMENT ## of the
      anticipated annual fee for the Equipped Itinerary in question until ##
      MATERIAL OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR CONFIDENTIAL
      TREATMENT ## increased to ## MATERIAL OMITTED AND SEPARATELY FILED UNDER
      A REQUEST FOR CONFIDENTIAL TREATMENT ## beyond that date, for each week's
      lateness. However, the penalties as a whole are limited to ## MATERIAL
      OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR CONFIDENTIAL TREATMENT
      ## of the amount of the prefinancing mentioned in article 14.3.

      The credit constituted in this way shall be calculated and be deducted
      from the amount of the fee to become due starting with the third year
      following the availability date of the last of the delivered Equipped
      Motorway Sections.

      In case the availability date of the last Equipped Motorway Section comes
      after ## MATERIAL OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR
      CONFIDENTIAL TREATMENT ##, the OPERATOR shall be entitled to cancel the
      present Convention under the conditions mentioned in article 16.1.

      9.1.3 Special conventions regarding Site availability

      At the end of a detailed study, one or several special conventions will
      spell out the technical conditions regarding availability of the Sites and
      will make it possible, if appropriate, to update Appendix No. 3.

      9.2 Additional services

      9.2.1 Informing the OPERATOR

      Depending on the extension of the Equipped Itineraries and on the surplus,
      if any, of existing F.o.n., the SANEF may make some F.o.n. available to
      the OPERATOR in addition to the ones provided for in article 9.1.1 above.

      To this end, the SANEF shall inform the OPERATOR by October 30 of each
      year and on the occasion of each change of the number of F.o.n. available
      and of F.o.n. reserved on the Equipped Itineraries as well as, if the case
      arises, about the programme for extension of the Equipped Itineraries.

<PAGE>   10

                             CONFIDENTIAL TREATMENT
                                                                              10


      This information will also have to be communicated by the SANEF whenever
      the OPERATOR so requests.

      9.2.2 Request for additional F.o.n.

      The OPERATOR may request the SANEF at any time, by registered mail with
      receipt, to have additional F.o.n. made available without reservation in
      the light of the increase in its needs during the present Convention.

      The SANEF undertakes to consider the technical feasibility of making
      additional F.o.n. available in order to meet the OPERATOR's request. The
      SANEF will provide its response within 30 days following the OPERATOR's
      request.

      9.2.3 Request for optional F.o.n.

      The OPERATOR shall also be entitled to reserve optional F.o.n. to be made
      available by the SANEF under the following conditions:

      1) The OPERATOR shall inform the SANEF by registered mail with receipt of
      the number of F.o.n. it wants to have reserved (hereinafter: "the
      Request").

      The Request may not bear on more F.o.n. than exploited by the OPERATOR.

      2) The SANEF has two weeks to acknowledge the Request, which may be
      rejected only in case of circumstances beyond its control. After that
      time, the Request is considered to have been accepted by the SANEF subject
      to payment by the OPERATOR of an amount equal to ## MATERIAL OMITTED AND
      SEPARATELY FILED UNDER A REQUEST FOR CONFIDENTIAL TREATMENT ## of the
      amount of the annual fee relating to the request calculated on the price
      terms provided for in the present Convention. Payment shall have to be
      made within 30 days starting with the SANEF's explicit or tacit response,
      failing which the Request will no longer be considered as having been
      accepted.

      3) The Request is valid for ## MATERIAL OMITTED AND SEPARATELY FILED UNDER
      A REQUEST FOR CONFIDENTIAL TREATMENT ## starting with the date of
      acceptance of the Request, during which the OPERATOR may request at any
      time, by registered mail with receipt addressed to the SANEF, to have the
      F.o.n. that are the object of the Request made available. The SANEF will
      make the F.o.n. in question available within 2 weeks following the date of
      receipt of the above-mentioned letter and will deduct the amount of the ##
      MATERIAL OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR CONFIDENTIAL
      TREATMENT ## paid in connection with the reservation from the fee for the
      F.o.n. that are the object of the Request.

      4) During the period of Request validity, and in case the SANEF's
      available F.o.n. are in the limit of capacity, the SANEF may request the
      OPERATOR at any time, by registered mail with receipt, to make a decision
      as to the final nature of the availability of the F.o.n. that are the
      object of the Request.

      The OPERATOR shall then have a period of 2 weeks starting with the date of
      receipt of the above-mentioned letter to make its response by registered
      mail with receipt addressed to the SANEF.

<PAGE>   11


                             CONFIDENTIAL TREATMENT
                                                                              11


      In the absence of a response within that period or in case of a negative
      response, the SANEF:

      - shall be entitled to exploit the F.o.n. in question itself or make them
      available to another Operator;

      - to return the sum paid to the OPERATOR pursuant to section 2 of the
      present article.

      5) One month before the end of the reservation, the SANEF will ask the
      OPERATOR by registered mail with receipt whether it wants to renew its
      option. If so, the latter shall have to again pay an amount equal to ##
      MATERIAL OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR CONFIDENTIAL
      TREATMENT ## of the annual fee relative to the Request. In this case, the
      amount of ## MATERIAL OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR
      CONFIDENTIAL TREATMENT ## paid by the OPERATOR for the past year shall
      definitively remain the SANEF's property.

      9.2.4 Making additional F.o.n. available

      The technical conditions relating to making additional F.o.n. available
      will be defined by a rider modifying Appendix No. 3 and, if the case
      arises, Appendix No. 6 section 3.2 "motorway sections". The additional
      F.o.n. will be subject to the same financial conditions as the ones laid
      down in the present Convention. The base price of the work unit is defined
      in Appendix 6. However, in case of prefinancing, the base price of the
      work unit shall be the one for the year 1996/1997 or ## MATERIAL OMITTED
      AND SEPARATELY FILED UNDER A REQUEST FOR CONFIDENTIAL TREATMENT ## per
      linear meter per year. The payment schedule appearing to Appendix No. 8
      will also be updated.

10. Technical provisions relative to the work

      10.1 Installation of the F.o.n.

      The SANEF shall perform the work of installing the Optical Cables on each
      side of the motorway in accordance with the technical specifications
      described in Appendix 4.

      The SANEF warrants that the OPERATOR shall enjoy access to all technical
      information it needs to evaluate the progress and the quality of the work
      of installing the Optical Cable.

      The means used to reach this objective concern access to the technical
      documents relative to the project as well as the response to the
      OPERATOR's written questions.

      Some job site inspections will be arranged by SANEF for the OPERATOR's
      benefit, at the latter's inquest.

      10.2 Sites

      10.2.1 Evaluation of OPERATOR's needs

      With a view to establishing the special convention(s) spelling out the
      conditions of making the Sites available, upon signature of the Convention
      the Parties shall inspect the Sites. The OPERATOR shall then indicate by
      registered mail with receipt addressed to the SANEF the list of the SANEF
      Sites at which it wishes to install its telecommunications equipment or
      any other equipment, required for exploitation of the F.o.n., or failing
      this, the Sites that can be installed by the OPERATOR. For each Site the
      OPERATOR shall supply specifications including, in particular, a detailed
      layout plan of the equipment items as well as the specifications of the
      required environment.

<PAGE>   12

                                                                              12


      The OPERATOR's specifications will be considered by the SANEF before any
      work within a period of one month starting with the date of receipt
      thereof. They shall give rise to a technical and financial evaluation.

      In the interest of proper management of the motorway public domain, the
      preferred solution is the one calling for installation of the OPERATOR's
      equipment in the SANEF Sites in which private spaces are to be arranged
      for the OPERATOR's benefit.

      Furthermore, except in its private spaces in the SANEF Sites, the OPERATOR
      shall not be entitled to oppose the presence of equipment belonging to the
      SANEF or to other OPERATORS.

      The OPERATOR may not oppose installation of a technical shelter near its
      Site.

      10.2.2 Improvement of the SANEF Sites

      If the SANEF Sites made available in accordance with the special
      conventions mentioned in article 10.2.1 are to be the object of other
      improvements at the OPERATOR's request, such as, for instance, security of
      the energy supply, air conditioning or access control, etc., the work will
      be performed by the SANEF and will be paid for by the OPERATOR in
      accordance with the financial evaluation that will have been made in
      advance and which will have been approved by the two Parties.

      In case the improvements financed by the OPERATOR are also used by other
      Operators, the incoming Operator will be asked by the SANEF to make an
      improvement contribution and this will be rebated to the OPERATOR in
      proportion to the surface area occupied.

      10.2.3 Construction of Sites by the OPERATOR

      In case the SANEF cannot make the Sites desired by the OPERATOR available,
      the latter is authorised to construct pursuant to the technical conditions
      spelled out in a special convention in accordance with article 10.2.1 and
      under the following conditions:

      1.    The Sites will be built by the OPERATOR, at its own expense, the
            latter also paying the expenses induced by the work (fencing
            modification, etc.),

      2.    The Sites shall be of a model approved by the SANEF,

      3.    The Sites may not occupy a surface area of more than 15 square
            meters,

      4.    A plan of the Site's territorial area will be drawn up by the SANEF
            for each place in question and will be signed by the two Parties'
            contacts designated in article 5,

      5.    The OPERATOR shall see to installation and consumption of the
            electricity, and shall be entitled to make the best possible use of
            the existing electrical installations,

      6.    The Sites shall always be maintained in a good condition of
            maintenance,

      7.    The OPERATOR shall see to the required administrative formalities.

<PAGE>   13

                                                                              13


      10.2.4 OPERATOR's equipment installations

      The OPERATOR or its representative shall enjoy continuous access to the
      Sites or to the territories in accordance with the safety rules spelled
      out by SANEF in Appendix No. 5

      10.2.5 Use and maintenance of the Sites

      The OPERATOR undertakes to keep the private space of the SANEF Sites
      reserved for it in good maintenance condition. However, it shall reimburse
      the SANEF for its share of the electricity consumed. It shall remain fully
      responsible under all circumstances for its use of its private spaces. In
      this connection, it will have to take out insurance making it possible, at
      the appropriate time, to cover the various risks connected with its use of
      the Sites.

11. Technical provisions relative to operations

      11.1 Acceptance

      11.1.1 Acceptance of the F.o.n. by the SANEF

      As soon as SANEF pronounces acceptance of the F.o.n. vis-a-vis its
      manufacturer in an F.o.n. district, the SANEF shall inform the OPERATOR by
      registered mail with receipt that the F.o.n. in question may become the
      object of acceptance by the OPERATOR and it shall inform it of the result
      of the measurements made.

      11.1.2 Acceptance of the F.o.n. by the OPERATOR

      In the interest of making sure that the technical characteristics of the
      F.o.n. made available to it meet the technical specifications laid down in
      Appendix No. 4, the OPERATOR must make its own acceptance tests, F.o.n.
      District by F.o.n. District, pursuant to Appendix No 4, within a maximum
      of 2 weeks following the date of receiving the registered letter with
      receipt mentioned in article 11.1.1.

      The following constraints shall be observed:

      1.    After having informed the SANEF of the place and date of acceptance
            with 48 hours' notice, the OPERATOR shall carry out the test
            operations relating to acceptance of the F.o.n. The said operations
            shall be carried out as the SANEF makes F.o.n. available in each
            F.o.n. District.

      2.    The results of the acceptance tests shall be recorded in minutes
            concerning the operations prior to acceptance, to be drawn up and
            signed by the Parties present at the time of the operations. If the
            SANEF is absent, the minutes shall be applicable to it.

      3.    If the acceptance tests are positive, the OPERATOR shall send an
            acceptance report signed by it within one week following the date of
            the tests, by registered mail with receipt, to the SANEF.

      4.    In case of difficulties, the acceptance test operations shall have
            to be renewed within 30 days at the latest starting with the date of
            the first test operation.

      5.    If the OPERATOR does not pronounce acceptance of the F.o.n. at the
            end of the latter period on the ground that the F.o.n. made
            available do not meet the technical

<PAGE>   14

                                                                              14


            specifications laid down in Appendix No. 4, the OPERATOR shall be
            entitled to cancel the Convention under the conditions of article
            16.1. The same applies when the lack of acceptance results from
            SANEF's absence.

      6.    If the OPERATOR does not pronounce acceptance of the F.o.n. within
            the periods indicated for any reason other then the ones described
            above, acceptance is considered to have occurred.

      11.1.3 Acceptance of the SANEF Sites

      The SANEF Sites shall be accepted by the OPERATOR at the same time as the
      F.o.n. Districts concerned and in accordance with the specifications
      appearing in the special convention mentioned in article 10.2.1 of the
      present Convention.

      11.1.4 Acceptance of an Equipped Motorway Section

      When the OPERATOR has pronounced acceptance of all of the F.o.n. Districts
      and of the SANEF Sites made available to the OPERATOR by SANEF in one and
      the same Equipped Motorway Section, the latter is considered to have been
      accepted by right.

      11.1.5 Compliance of the OPERATOR Sites

      On the basis of the documents provided for in article 10.2.3, the
      compliance of the OPERATOR Sites will be checked by the SANEF on a date
      set by the OPERATOR, the said inspection giving rise to signature of a
      report.

      11.1.6 Compliance of the OPERATOR's technical equipment

      The compliance with specifications of the OPERATOR's technical equipment
      will be checked by the SANEF at the same time and on the basis of the same
      procedure as described in article 11.1.5, and within the limits of what is
      necessary to verify the absence of disturbances.

      11.2 Maintenance

      The SANEF warrants the OPERATOR with respect to the compliance of the
      F.o.n. made available to it with the technical specifications spelled out
      in Appendix No. 4, and their proper operation for the entire duration of
      the present Convention.

      If the F.o.n. made available to the OPERATOR do not satisfy the technical
      specifications appearing in Appendix 4 to the present Convention, the
      SANEF shall supply the OPERATOR, as soon as possible and without any
      additional expense to the latter, with new F.o.n. in the same Optical
      Cable or in another cable.

      The SANEF shall see to monitoring and maintenance of the F.o.n. installed
      on its Motorway Network, outside of the Sites and as far as the Connectors
      and distribution boxes inclusive.

<PAGE>   15

                                                                              15


      11.2.1 Preventive maintenance

      The list of the work on motorways planned by the SANEF that could
      interfere with proper operation of the F.o.n. will be transmitted to the
      OPERATOR on the occasion of each updating, and if possible 45 days before
      the start of work. The SANEF will inform the OPERATOR of the provision to
      be adopted to minimise possible disturbances.

      If the case arises, for unplanned motorway work, SANEF will inform the
      OPERATOR in accordance with the procedure to be defined as soon as it
      becomes aware thereof and it will indicate the provisions adopted to
      minimise possible disturbances.

      Preventive maintenance consists in carrying out the following:

      1.    semi-annually:

            -     a check on the mechanical and optical condition, including the
                  verification of the Connectors,

            -     a verification of the quality of the F.o.n. by checking on its
                  performance level in accordance with the technical
                  specifications described in Appendix No. 4.

      2.    every two months:

      -     a routine inspection making it possible to detect possible
            deterioration including civil engineering, or departures from
            desired performance.

      In particular preventive maintenance includes the labour and the
      replacement of defective equipment as well as keeping maintenance
      documentation and a work ledger up to date.

      All of the work carried out by the SANEF on the F.o.n. and Connectors,
      including on behalf of third parties, as well as the events having given
      rise thereto must be entered in a ledger called "journal de bord" kept on
      the SANEF premises and which can be consulted by the OPERATOR.

      The "journal de bord" must include the following information as a minimum
      for each SANEF intervention: date, starting and ending time, nature of the
      anomalies noted, work carried out and subassemblies replaced, indication
      of the checks and measurements made, and an account of the incidents or
      difficulties encountered.

      Preventive maintenance is carried out In accordance with a schedule drawn
      up by agreement with the OPERATOR.

      The definition of the test, measurements and performance levels is given
      in Appendix No. 4.

      It must be possible to carry out the preventive maintenance work without
      interruption. To this end, the SANEF shall keep at least one pair of
      F.o.n. known as "manoeuvring fibres" on each side of the motorway that can
      be used by the various Operators. This "manoeuvring" connection will have
      to be as close as possible to the connection made available and comparable
      in every respect. It will be accepted and maintained in identical fashion.

<PAGE>   16

                             CONFIDENTIAL TREATMENT
                                                                              16


      11.2.2 Remedial maintenance

            11.2.2.1 General principles

      The SANEF, at its own expense, shall see to repair of the F.o.n. made
      available to the OPERATOR in case of interruption or of dysfunction.

      The OPERATOR will be reimbursed for any interruption for the amount of the
      fee on the Equipped Itinerary in question for the duration of the
      interruption upon submission of an invoice payable at thirty (30) days or
      in the form of an hourly credit, at its choice.

      The remedial maintenance conditions will be assured by the SANEF under the
      conditions described below.

            11.2.2.2  Alert procedure

      The SANEF shall have to install means making it possible to receive
      telephone calls and faxes 7 days a week, 24 hours a day.

      As soon as the failure of an F.o.n. is noted, the OPERATOR shall inform
      the SANEF of this fact by telephone and fax.

      The OPERATOR shall make sure that the failure does not result from
      equipment it has connected to the F.o.n. made available or from the part
      of the optical connection between the Connector and its equipment, for
      which the SANEF is not responsible.

      If appropriate, the OPERATOR shall confirm its request to the SANEF for
      intervention by telephone and fax.

      At the time of such interventions, the SANEF shall have to have qualified
      staff and the required tooling to carry out all checks and to make the
      analyses and the repair.

      When there has been a request for intervention, the SANEF shall designate
      a contact who will be able to supply the OPERATOR with full information
      concerning the progress made in putting the optical connection back into
      proper condition.

      The work periods begin starting at the time of receipt of the work request
      and are specified below.

            11.2.2.3 Interruption of the F.o.n. on a single side of the motorway
            on an Equipped Itinerary

      In case the OPERATOR notes an interruption of a F.o.n. on an Equipped
      Itinerary, the SANEF undertakes to begin repair within ## MATERIAL OMITTED
      AND SEPARATELY FILED UNDER A REQUEST FOR CONFIDENTIAL TREATMENT ## during
      business hours (8 a.m. to 6 p.m.) and within ## MATERIAL OMITTED AND
      SEPARATELY FILED UNDER A REQUEST FOR CONFIDENTIAL TREATMENT ## during
      non-business hours (6 p.m. - 8 a.m.) after the interruption has been
      reported by the OPERATOR in accordance with the procedures defined above.
      In case of non-observance of the above-mentioned undertakings, the SANEF
      shall be required, in addition to the reimbursement provided for in
      article 11.2.2.1, to indemnify the OPERATOR to the exclusion of any other
      repair by allocating it, free, an hourly credit for F.o.n. availability
      equal to the amount of the fee calculated pro rata temporis for the
      duration of the interruption reduced by the periods of ## MATERIAL OMITTED
      AND SEPARATELY FILED UNDER A REQUEST FOR CONFIDENTIAL TREATMENT ## or of
      ## MATERIAL OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR CONFIDENTIAL
      TREATMENT ## indicated above, on the Equipped Itinerary or Itineraries in
      question. The said credit is subject to an annual ceiling of ## MATERIAL
      OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR CONFIDENTIAL TREATMENT ##
      of the amount of the annual fee for the Equipped Itinerary in question.
      The hourly credit due for year N shall be deducted from the amount of the
      fee paid at the start of year ## MATERIAL OMITTED AND SEPARATELY FILED
      UNDER A REQUEST FOR CONFIDENTIAL TREATMENT ##.

<PAGE>   17

                             CONFIDENTIAL TREATMENT
                                                                              17


      The SANEF shall make its best efforts to repair within a period of less
      than ## MATERIAL OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR
      CONFIDENTIAL TREATMENT ## after the start of the work. In any event, the
      SANEF undertakes, if it has unused F.o.n., to make them available to the
      OPERATOR before the end of the above-mentioned ## MATERIAL OMITTED AND
      SEPARATELY FILED UNDER A REQUEST FOR CONFIDENTIAL TREATMENT ## period and
      until the end of the repair.

            11.2.2.4 Simultaneous interruption of the F.o.n. constituting a
            Secured Area on an Equipped Itinerary

      The following provisions apply solely to Pairs of Secure F.o.n. and
      concern the simultaneous interruption of the F.o.n. located on each side
      of the motorway.

      In case of interruptions that might simultaneously affect F.o.n. located
      on each side of the motorway belonging to one and the some Equipped
      Itinerary, the SANEF shall remedy the interruption on a single side of the
      motorway within a maximum of eight hours alter the interruption has been
      reported by the OPERATOR in accordance with the procedures defined in
      article 11.2.2. Beyond a cumulative period of ## MATERIAL OMITTED AND
      SEPARATELY FILED UNDER A REQUEST FOR CONFIDENTIAL TREATMENT ## per year of
      unavailability of service on the Equipped Itinerary in question, the SANEF
      shall be required to indemnify the OPERATOR, to the exclusion of any other
      repair, by allocating it free an hourly credit of F.o.n. availability in
      an amount equivalent to ## MATERIAL OMITTED AND SEPARATELY FILED UNDER A
      REQUEST FOR CONFIDENTIAL TREATMENT ## per hour of the annual fee for the
      Equipped Itinerary in question, calculated for each minute beyond the ##
      MATERIAL OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR CONFIDENTIAL
      TREATMENT ##. The said credit is subject to annual ceiling of ## MATERIAL
      OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR CONFIDENTIAL TREATMENT ##
      of the amount of the annual fee for the Equipped Itinerary in question.

      The hourly credit due for year N shall be deducted from the amount of the
      fee paid at the start of year ## MATERIAL OMITTED AND SEPARATELY FILED
      UNDER A REQUEST FOR CONFIDENTIAL TREATMENT ##.

      Beyond the above-mentioned ceiling, the OPERATOR shall be entitled to
      cancel the Convention because of SANEF's doing under the conditions of
      article 16.

      The SANEF shall make its best efforts to repair within a period of less
      than 6 hours after the start of the work. In any event, the SANEF
      undertakes, if it has unused F.o.n., to make them available to the
      OPERATOR before the end of the above-mentioned 6 hour period and until the
      end of the repair.

      For the F.o.n. located on the other side of the motorway, the repair will
      be carried out under the conditions of article 11.2.2.3.

            11.2.2.5 F.o.n. dysfunction

      In case the OPERATOR notes a dysfunction of the F.o.n., the Parties shall
      consult each other to remedy the situation with the required speed.

      11.2.3 Maintenance of the OPERATOR's Installations and Sites

      The SANEF shall cooperate with the OPERATOR or its representatives to
      facilitate maintenance of the OPERATOR's technical installations as well
      as of the part of the F.o.n. directly attached thereto.

<PAGE>   18

                             CONFIDENTIAL TREATMENT
                                                                              18


      11.2.4 Maintenance of the SANEF Sites

      The list of the work planned by the SANEF on the SANEF Sites made
      available will be sent to the OPERATOR on the occasion of each updating,
      and if possible at least 45 days before the start of the work, spelling
      out the provisions to be adopted to minimise possible disturbances.

      In appropriate cases, for unplanned work, the SANEF shall inform the
      OPERATOR by fax as soon as it becomes aware thereof, and shall indicate
      the provisions adopted to minimise possible disturbances.

      11.3 Withdrawal of the OPERATOR's equipment and Sites

      11.3.1 Withdrawal of the equipment at the SANEF Sites

      At the time of the normal or early end of the present Convention:

      1.    The OPERATOR shall proceed within a maximum of 90 days, on its own
            and at in own expense except in case of cancellation due to the
            SANEF's doing, with the withdrawal of its extremity equipment items.

      2.    The SANEF shall provide the OPERATOR with free access to the SANEF
            Sites to make the said withdrawal.

      3.    The equipment items and the improvements, if any, made by the
            OPERATOR in the SANEF Sites shall be acquired by the SANEF at their
            residual value after depreciation, the depreciation rate adopted
            being the usual rate in the OPERATOR's business.

      4.    A report concerning the delivery of the SANEF Sites made available
            shall be signed by SANEF and the OPERATOR.

      11.3.2 Withdrawal of the OPERATOR's Sites

      At SANEF's request the OPERATOR's Sites may:

      o     either be destroyed or be removed by the OPERATOR within a maximum
            of 90 days and at its expense, except in case of cancellation
            because of the SANEF's doing,

      o     or be purchased by the SANEF at the residual value after
            depreciation, the depreciation rate adopted being the rate usually
            used in the OPERATOR's business.

      11.3.3 Penalties

      In case of delay in withdrawal of its equipment at the SANEF Sites or from
      the OPERATOR's Sites, the SANEF shall be entitled to claim an indemnity
      from the OPERATOR equal to ## MATERIAL OMITTED AND SEPARATELY FILED UNDER
      A REQUEST FOR CONFIDENTIAL TREATMENT ## per day of lateness, the said
      amount being revised under the conditions of the present Convention.
      Notwithstanding the foregoing, the SANEF shall also be entitled to have
      the said withdrawal made at the OPERATOR's expense and risk.

<PAGE>   19

                                                                              19


12. General conditions regarding installation and operations

      12.1 Access to the equipment

      In the interest of proper management of access to the motorway public
      domain, before any intervention at a Site, the OPERATOR shall have to
      inform by fax the representative of the SANEF designated for that purpose.
      A list of the OPERATOR's agents and of its representatives authorised to
      intervene in connection with its equipment shall be supplied to the SANEF
      by the OPERATOR. The OPERATOR also undertakes to observe the safety rules
      communicated by the SANEF in Appendix No. 5 and to see to their observance
      by the companies intervening in its behalf, by including a clause to that
      effect in the conventions concluded with them.

      12.2 Work on the Motorway Network

      The SANEF shall supply the OPERATOR with a forecast of its work on the
      Motorway Network.

      It is recalled that the OPERATOR may not in any case protest against the
      work carried out by the SANEF on the Motorway Network.

      However, the SANEF undertakes to see to it that the required means are
      applied to avoid disturbing the operation of the F.o.n. made available to
      the OPERATOR.

      In case the work should necessarily affect proper operation of the F.o.n.,
      the SANEF shall consider with the OPERATOR, as soon as possible and in any
      event before the startup of the work, except in case of force majeure, the
      steps to be taken to maintain the same service quality.

      12.3 Work on the telecommunications network

      The SANEF shall supply the OPERATOR with continuous information concerning
      the state of the work relating to the F.o.n. In case the work should
      necessarily affect proper operation of the F.o.n., the SANEF shall
      consider with the OPERATOR, as soon as possible and in any event before
      the startup of the work, except in case of force majeure, the steps to be
      taken to maintain the same service quality.

13. Liability

      13.1 General principle

      The Parties are liable between themselves for any direct damage resulting
      from the existence and the operation of their installations on the
      Motorway Network.

      The OPERATOR undertakes to strictly respect the conditions regarding
      operation of its equipment and of the F.o.n. made available to it laid
      down in the regulations applicable to the telecommunications sector, and
      to obtain all advance authorisations required. The SANEF may not be held
      liable in any way in this connection.

<PAGE>   20

                             CONFIDENTIAL TREATMENT
                                                                              20


      13.2 Equipment compatibility and maintenance

      Each Party assures itself and warrants the other with respect to the
      compliance of the installation of its equipment with the standards and
      practices in the business, particularly with the recommendations relative
      to electromagnetic compatibility, and that operation thereof is compatible
      with the other Party's equipment.

      Each Party remains responsible for proper performance of the present
      article.

      The OPERATOR shall have to monitor and maintain its equipment in a good
      maintenance condition, at its own expense and risk, so as not to cause any
      disturbance and not to create any danger to the motorway public domain
      under concession and operation thereof. In case of a failure or of
      insufficiency of the measures adopted for such maintenance, the SANEF
      shall be entitled to have the required work done at its own initiative,
      after having served formal notice, except in case of urgency, on the
      OPERATOR by registered mail with receipt calling on it to record, in the
      Parties' presence, the work required and to carry it out within 2 weeks.

      13.3 Insurance

      Each Party has taken an insurance policy out with an insurance company
      represented in France concerning the Sites and covering the risks of fire,
      explosion, water damage, public liability generally, and all risks
      connected with its activity in particular linked with the Convention.

      A Party may not be held liable in any way for the insufficiency of the
      coverage taken out by another Party.

14. Financial provisions

      14.1 Fees

      In exchange for the authorisation to occupy the motorway public domain and
      for the availability of the F.o.n. and of the Sites provided for under the
      present Convention, the OPERATOR shall be required to pay two fees to the
      SANEF:

      1.    an annual fee (R1) for the availability of the F.o.n. (cf. article
            9.1.1) in an amount laid down in Appendix 6 for all of the Equipped
            Motorway Sections delivered.

            If the OPERATOR sees to prefinancing in accordance with articles
            14.3.2 and 14.3.3 below, the duration discount (3.4.2 of the price
            list in Appendix No. 6) shall apply as of the first year and for the
            entire duration of the present Convention, to all F.o.n.
            availabilities at the rate of ## MATERIAL OMITTED AND SEPARATELY
            FILED UNDER A REQUEST FOR CONFIDENTIAL TREATMENT ##. In addition,
            the base price of the work unit shall, for the duration of the
            Convention, be the one in effect in the year of signature of the
            present Convention.

      2.    an annual fee (R2) for making the Sites available, which shall be
            calculated excluding taxes in accordance with the fee schedule laid
            down in Appendix 6 (point 6).

      The two fees (R1 and R2) shall follow the following rules:

      -     the beginning date of their payability for an Equipped Itinerary
            shall be the Availability Date of the last Equipped Motorway Section
            of the said Itinerary.

<PAGE>   21

                             CONFIDENTIAL TREATMENT
                                                                              21


      -     invoices shall be issued for them in accordance with the procedures
            of article 14.3.2 below.

      14.2 Revision

      The amount of the fees provided for in article 14.1 shall be revised
      annually as follows:

            ## MATERIAL OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR
            CONFIDENTIAL TREATMENT ## in which:

      R = Revised fee: R1 or R2

      Ro= Fee corresponding to the latest known indices at the time of signature
      of the Convention

      So = The weighted general index of salaries in the electronic and
      engineering industries as published by the INSEE

      FCI o = The base index for insulated wires and cables established and
      published by the INSEE under the reference NAF No. 2818/36

      S and FCI = The revision indices, the latest indices known on the
      invoicing date

      The variation shall be taken into account and applied every year on
      January 1.

      The Parties agree to renegotiate the choice or structure of the revision
      index adopted if ## MATERIAL OMITTED AND SEPARATELY FILED UNDER A REQUEST
      FOR CONFIDENTIAL TREATMENT ## is less than or equal to ## MATERIAL OMITTED
      AND SEPARATELY FILED UNDER A REQUEST FOR CONFIDENTIAL TREATMENT ## or
      greater then or equal to ## MATERIAL OMITTED AND SEPARATELY FILED UNDER A
      REQUEST FOR CONFIDENTIAL TREATMENT ##.

      In case an index disappears, the calculation shall be made by using the
      substitute index and the required correlation coefficient.

      14.3 Payment and invoicing procedures

      14.3.1 Downpayment

      The OPERATOR shall pay the amount of ## MATERIAL OMITTED AND SEPARATELY
      FILED UNDER A REQUEST FOR CONFIDENTIAL TREATMENT ## excluding taxes to the
      SANEF as a downpayment on the first fee instalment (R1).

      On the day of signature of the present Convention, the SANEF shall supply
      the OPERATOR with the corresponding invoice, which the OPERATOR shall pay
      within two weeks.

      14.3.2 Prefinancing option

      The procedures for payment of the R1 fee shall vary depending on whether
      the OPERATOR has been able to use its option to prefinance the work of
      installing the F.o.n. under the terms of article 14.3.3 below. In this
      connection, the OPERATOR shall inform the SANEF of its decision to provide
      or not provide the said prefinancing by registered mail with receipt sent
      as soon as possible, and at the latest on May 15, 1997.

      14.3.3 Payment of prefinancing of the F.o.n.

      The OPERATOR shall have the option of providing, to SANEF's benefit,
      prefinancing (P) equal to ## MATERIAL OMITTED AND SEPARATELY FILED UNDER A
      REQUEST FOR CONFIDENTIAL TREATMENT ## excluding taxes, payable in three
      instalments by April 20, 1997, and releasing the OPERATOR from payment of
      the R1 fees for ## MATERIAL OMITTED AND SEPARATELY FILED UNDER A REQUEST
      FOR CONFIDENTIAL TREATMENT ##.

<PAGE>   22

                             CONFIDENTIAL TREATMENT
                                                                              22


      ## MATERIAL OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR CONFIDENTIAL
      TREATMENT ## starting with the date of availability of the last Equipped
      Motorway Section of each Equipped Itinerary, within the framework of the
      payment schedule in Appendix 8.

      The SANEF shall issue three invoices by registered mail with receipt sent
      to the OPERATOR upon receiving the registered letter mentioned in section
      14.3.2, informing it of its decision to provide prefinancing. The
      downpayment made in application of section 14.3.1. shall be applied to the
      amount of the invoice for the first prefinancing instalment (P1).

      Payment of the first prefinancing instalment (P1) shall be made upon
      submission of the corresponding invoice by bank transfer to a SANEF
      account within a maximum of 30 days starting with the date of dispatch of
      the letter mentioned in section 14.3.2 and at the latest on May 20, 1997.

      The OPERATOR shall attempt to make the payments of the second instalment
      (P2) and of the third instalment (P3) of the prefinancing in such a way
      that the corresponding amounts reach the SANEF account in accordance with
      the following schedule:

                     -------------------------------------------------
                     Millions of Francs                  Transfer date
- --------------------------------------------------------------------------------
      P1      ## MATERIAL OMITTED AND           ## MATERIAL OMITTED AND
              SEPARATELY FILED UNDER A REQUEST  SEPARATELY FILED UNDER A REQUEST
              FOR CONFIDENTIAL TREATMENT ##     FOR CONFIDENTIAL TREATMENT ##
- --------------------------------------------------------------------------------
      P2      ## MATERIAL OMITTED AND           ## MATERIAL OMITTED AND
              SEPARATELY FILED UNDER A REQUEST  SEPARATELY FILED UNDER A REQUEST
              FOR CONFIDENTIAL TREATMENT ##     FOR CONFIDENTIAL TREATMENT ##
- --------------------------------------------------------------------------------
      P3      ## MATERIAL OMITTED AND           ## MATERIAL OMITTED AND
              SEPARATELY FILED UNDER A REQUEST  SEPARATELY FILED UNDER A REQUEST
              FOR CONFIDENTIAL TREATMENT ##     FOR CONFIDENTIAL TREATMENT ##
- --------------------------------------------------------------------------------

      To [ILLEGIBLE] Date of dispatch of the registered letter with receipt
      mentioned in article 14.3.2.

      If payment P1 is made before ## MATERIAL OMITTED AND SEPARATELY FILED
      UNDER A REQUEST FOR CONFIDENTIAL TREATMENT ## the OPERATOR shall pay P2
      to the SANEF on ## MATERIAL OMITTED AND SEPARATELY FILED UNDER A REQUEST
      FOR CONFIDENTIAL TREATMENT ##. If the P1 transfer occurs after ## MATERIAL
      OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR CONFIDENTIAL TREATMENT ##
      but before ## MATERIAL OMITTED AND SEPARATELY FILED UNDER
      A REQUEST FOR CONFIDENTIAL TREATMENT ## the OPERATOR shall pay P2 to the
      SANEF on the same day as P1.

      If the P1 transfer occurs on ## MATERIAL OMITTED AND SEPARATELY FILED
      UNDER A REQUEST FOR CONFIDENTIAL TREATMENT ## the OPERATOR shall pay P2
      and P3 at the same time as P1.

      In case of early payment, a payment discount shall be granted on the basis
      of the overnight rate on the money market less ## MATERIAL OMITTED AND
      SEPARATELY FILED UNDER A REQUEST FOR CONFIDENTIAL TREATMENT ##.

      If payment of P1 has not been made by ## MATERIAL OMITTED AND SEPARATELY
      FILED UNDER A REQUEST FOR CONFIDENTIAL TREATMENT ## at the latest, the
      Parties shall consider that the OPERATOR is not providing prefinancing,
      and if the OPERATOR fails to call upon the termination clause stipulated
      in article 18, the F.o.n. shall be made available under the conditions of
      the present Convention without any prefinancing discount, R1 being payable
      as of the first year the F.o.n. are made available.

      In case of late payment of the prefinancing instalments (P2) and (P3), the
      OPERATOR shall have to pay penalties by right equal to ## MATERIAL OMITTED
      AND SEPARATELY FILED UNDER A REQUEST FOR CONFIDENTIAL TREATMENT ## the
      legal interest rate on the amount due beyond of that date.

<PAGE>   23

                             CONFIDENTIAL TREATMENT
                                                                              23


      After the deadline for payment of the prefinancing instalments (P2) and
      (P3), the SANEF shall be entitled to serve formal notice to pay on the
      OPERATOR by registered mail with receipt.

      After a delay in payment of the prefinancing instalments (P2) and (P3) of
      more than 30 days starting with the date of receiving the above-mentioned
      formal notice, the SANEF shall be entitled to cancel the present
      Convention under the conditions described in article 16.1.1.2.

      In exchange for the prefinancing and subject to full payment thereof by ##
      MATERIAL OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR CONFIDENTIAL
      TREATMENT ## the OPERATOR shall benefit for the duration of the present
      Convention from an exceptional discount on the R1 fee, which shall vary
      depending on the P1 transfer date in the following proportions:

      - if P1 is paid between ## MATERIAL OMITTED AND SEPARATELY FILED UNDER A
      REQUEST FOR CONFIDENTIAL TREATMENT ## and ## MATERIAL OMITTED AND
      SEPARATELY FILED UNDER A REQUEST FOR CONFIDENTIAL TREATMENT ## the amount
      of the exceptional discount on R1 shall be equal to:

            ## MATERIAL OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR
            CONFIDENTIAL TREATMENT ## per day's lateness starting on ## MATERIAL
            OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR CONFIDENTIAL
            TREATMENT ##.

      In the absence of payment of the entire prefinancing (P) on ## MATERIAL
      OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR CONFIDENTIAL TREATMENT ##
      and in the absence of cancellation of the present Convention by the SANEF
      or the application of the termination clause stipulated in article 18, the
      F.o.n. shall be made available under the conditions of the present
      Convention, but without any prefinancing discount, the first invoice in
      connection with R1 being payable as of the date of availability of the
      last Equipped Motorway Section of each Equipped Itinerary. In this case,
      the amounts paid to the SANEF as prefinancing shall be returned to the
      OPERATOR within three (3) days, with the exception of the downpayment
      mentioned in article 14.3.1 of the present Convention, which shall be
      applied to the amount of the said invoice.

      14.3.4 Payment procedures regarding the fees for availability of the
      F.o.n. and of the Sites

            14.3.4.1 Invoicing procedure

      The invoices are sent to the OPERATOR by registered mail with receipt.

      i) In case of prefinancing (articles 14.3.2 end 14.3.3), at the end of a
      period of three years starting with the date of availability of the last
      Equipped Motorway Section of an Equipped Itinerary, an invoice shall be
      issued less than 60 days before the due date in an amount equal to a
      fraction of the annual fee calculated in proportion to the time remaining
      until the end of the year.

      ii) In the absence of prefinancing, an invoice will be issued less than 60
      days before the availability date of each Equipped Itinerary in an amount
      equal to the annual amount of the corresponding R1 fee, reduced by the
      downpayment made pursuant to article 14.3.1.

      In November 1997, a third invoice will be issued in an amount equal to the
      fraction of the R1 fee in proportion to the time that has elapsed since
      the availability date of the last Equipped Motorway Section of each of the
      Equipped Itineraries.

<PAGE>   24

                             CONFIDENTIAL TREATMENT
                                                                              24


      iii) For the following years, whether there is prefinancing or not, the
      annual fees mentioned in article 14.1 shall be covered by invoices issued
      in November of each year for the period from January 1 to December 31 of
      the following year.

            14.3.4.2 Payment procedures

      The fees provided for in article 14.1 shall be paid by bank transfer at 30
      days end of the month starting with the date of receiving the invoice.

      In case of early payment, a payment discount is granted on the basis of
      the money market overnight rate less ## MATERIAL OMITTED AND SEPARATELY
      FILED UNDER A REQUEST FOR CONFIDENTIAL TREATMENT ##.

      In case of late payment, penalties by right equal to ## MATERIAL OMITTED
      AND SEPARATELY FILED UNDER A REQUEST FOR CONFIDENTIAL TREATMENT ## the
      legal interest rate on the amounts due beyond the deadline of 30 days end
      of the month mentioned above will be demanded.

15. Declarations and guarantees

      The SANEF declares and warrants the OPERATOR:

      1.    that it is and remains the holder of the Convention for the
            concession of construction and operation of motorways concluded with
            the State on June 27, 1990, and approved by a Council of State
            Decree on October 29, 1990, pursuant to the terms of the convention
            published in the JORF on October 31, 1990;

      2.    that it is unaware of any fact or event of such nature as to entail
            total or partial invalidation of the said concession;

      3.    that it has seen to the steps preliminary to installation of the
            F.o.n.;

      4.    that it is authorised to install F.o.n. along the motorway public
            domain for which it is the concessionaire;

      5.    that it is authorised to make the above-mentioned F.o.n. available
            to the OPERATOR under the present Convention.

16. Cancellation

      In case one of the Parties does not perform an essential obligation of the
      present Convention, particularly in case the required provisions are not
      adopted by the SANEF to ensure the availability of the F.o.n., the other
      Party shall serve formal notice on it by registered mail with receipt
      calling on it to perform within a minimum period of 30 days starting with
      the date of receipt of the said letter, in the absence of a stipulation to
      the contrary laid down in the present Convention under the following
      conditions:

      If the formal notice produces no effect, the Party sending it shall be
      entitled to cancel the present Convention under the following conditions.

      The statement of cancellation for any reason whatsoever by one or the
      other of the Parties shall be made in a registered letter with receipt
      addressed to the other Party explaining the reasons for the cancellation.

<PAGE>   25


                              CONFIDENTIAL TREATMENT                          25


      Similarly, if the OPERATOR decides to put an early end to the Convention,
      notice of the said decision shall be sent by registered mail with receipt
      addressed to the SANEF and the decision shall take effect 90 days after
      receipt of the above-mentioned notification.

      The condition regarding refund of the amounts due and the possible penalty
      clauses are defined for the various cases described below.

      The following terminology is used:

      R'1 is equal to R1 with prefinancing discount and with a duration discount
      corresponding to the duration of actual availability of the F.o.n.

      D is equal to the exact duration of use of the F.o.n. between the date of
      availability of the last Equipped Motorway Section and the date of
      cancellation, expressed in fractions of a year.

      The amounts paid in advance to the SANEF by the OPERATOR for which the
      OPERATOR may be reimbursed by the SANEF under the stipulations of the
      present article shall be increased on the basis of the T4M money market
      rate.

      The cancellation penalties provided for in the present article shall be
      reduced by the lateness interest or penalties already paid, if the case
      arises, under a particular provision of the present Convention for the
      reason having led to cancellation thereof.

      16.1 Cancellation before the availability date of the last of the Equipped
      Motorway Sections to be delivered in 1997

      In case one of the Parties should apply for cancellation of the present
      Convention before the availability date of the last of the Equipped
      Motorway Sections to be delivered in 1997, the consequences shall be as
      follows:

      16.1.1 Cancellation in case the OPERATOR prefinances

            16.1.1.1 By the OPERATOR because of the SANEF's doing

      The amounts paid to the SANEF shall be returned to the OPERATOR.
      Furthermore, the SANEF shall pay the OPERATOR a fixed and definitive
      indemnity equal to ## MATERIAL OMITTED AND SEPARATELY FILED UNDER A
      REQUEST FOR CONFIDENTIAL TREATMENT ## of the P prefinancing mentioned in
      article 14.3.1.

            16.1.1.2 By the SANEF because of the OPERATOR's doing

      The OPERATOR shall pay the SANEF a fixed and definitive indemnity equal to
      ## MATERIAL OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR CONFIDENTIAL
      TREATMENT ## of the P prefinancing mentioned in article 14.3.1, reduced by
      the amounts already paid to the SANEF.

      In case the amounts already paid to the SANEF by the OPERATOR are greater
      than the amount of the indemnity due, the SANEF shall refund the balance
      to the OPERATOR.

<PAGE>   26

                             CONFIDENTIAL TREATMENT
                                                                              26


      16.1.2 Cancellation In case the OPERATOR does not prefinance

            16.1.2.1 By the OPERATOR because of the SANEF's doing

      The downpayment made to the SANEF (article 14.3.1) shall be returned to
      the OPERATOR. Furthermore, the SANEF shall pay the OPERATOR a fixed and
      definitive indemnity in an amount equal to the said downpayment.

            16.1.2.2 By the SANEF because of the OPERATOR's doing

      The SANEF shall retain the downpayment made by the OPERATOR as a fixed and
      definitive indemnity.

      16.2 Cancellation after the availability date of the last of the Equipped
      Motorway Sections to be delivered in 1997

      The cancellation shall be effective after 3 months' notice served by
      registered mail with receipt.

      16.2.1 Cancellation within ## MATERIAL OMITTED AND SEPARATELY FILED UNDER
      A REQUEST FOR CONFIDENTIAL TREATMENT ## years

            16.2.1.1 By the OPERATOR because of the SANEF's doing

      The SANEF shall pay the OPERATOR the balance of the sums paid as
      prefinancing mentioned in article 14.3.1 remaining to the OPERATOR's
      credit in the SANEF accounts, or in the absence of prefinancing, the
      balance of the fees paid by the OPERATOR and for which it remains the
      creditor.

      Furthermore, the SANEF shall pay the OPERATOR a fixed and definitive
      indemnity equal to ## MATERIAL OMITTED AND SEPARATELY FILED UNDER A
      REQUEST FOR CONFIDENTIAL TREATMENT ## R1.

            16.2.1.2 By the SANEF because of the OPERATOR's doing

      The SANEF shall pay the OPERATOR the balance of the sums paid as
      prefinancing mentioned in article 14.3.1 still to the OPERATOR's credit in
      the SANEF accounts, or in the absence of prefinancing, the balance of the
      fees paid by the OPERATOR and for which it remains the creditor.

      The amount of the said sums shall be reduced by a fixed and definitive
      indemnity equal to ## MATERIAL OMITTED AND SEPARATELY FILED UNDER A
      REQUEST FOR CONFIDENTIAL TREATMENT ## R1, increased by an amount equal to
      ## MATERIAL OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR CONFIDENTIAL
      TREATMENT ##.

      16.2.2 Cancellation after ## MATERIAL OMITTED AND SEPARATELY FILED UNDER A
      REQUEST FOR CONFIDENTIAL TREATMENT ## years

            16.2.2.1 By the OPERATOR because of the SANEF's doing

      The SANEF shall return to the OPERATOR the balance of the sums to the
      OPERATOR's credit in the SANEF accounts. Furthermore, the SANEF shall pay
      the OPERATOR a fixed and definitive indemnity equal to ## MATERIAL OMITTED
      AND SEPARATELY FILED UNDER A REQUEST FOR CONFIDENTIAL TREATMENT ## R1.

<PAGE>   27
                             CONFIDENTIAL TREATMENT
                                                                              27


            16.2.2.2 By the SANEF because of the OPERATOR's doing

      The OPERATOR shall pay a fixed and definitive indemnity to the SANEF equal
      to ## MATERIAL OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR
      CONFIDENTIAL TREATMENT ## R1, increased by an amount equal to ## MATERIAL
      OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR CONFIDENTIAL TREATMENT
      ##. The SANEF shall return to the OPERATOR the balance of the sums to the
      OPERATOR's credit in the SANEF accounts.

17. Force Majeure

      Under the terms of the present Convention, a case of force majeure shall
      be any circumstance beyond the Parties' control that is irresistible and
      unpredictable in the meaning of the Council of State precedents.

      The Parties agree that one will treat as a case of force majeure a traffic
      accident or a demonstration on the motorway simultaneously affecting both
      traffic directions, cases of external strikes, and sabotage.

      No Party shall be considered as in default or as failing to meet its
      contractual obligations in case performance of its obligations is
      prevented by a case of force majeure.

      The Parties shall consult each other to limit the effects of the case of
      force majeure as far as possible.

18. Condition subsequent

      The OPERATOR has applied to the European Investment Fund for guarantees in
      an amount of ## MATERIAL OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR
      CONFIDENTIAL TREATMENT ## in order to be able to obtain a bank loan with a
      view to assuring the financing of its pan-European telecommunications
      network.

      Within 3 days following notification of the OPERATOR by the European
      Investment Fund of its decision to grant the said guarantees, the OPERATOR
      shall inform the SANEF of the said decision by registered mail with
      receipt.

      If the OPERATOR has not obtained the above-mentioned guarantees from the
      European Investment Fund before May 20, 1997, the present Convention shall
      be terminated by right if the OPERATOR so decides.

      In case the OPERATOR intends to call upon the present termination clause,
      it shall notify the SANEF by registered mail with receipt by May 23, 1997,
      of the European Investment Fund's decision refusing to grant the said
      guarantee and of its decision to call upon the present clause.

      In case of application of the termination clause by the OPERATOR, the
      SANEF shall retain the downpayment provided for in article 14.3.1 of the
      present Convention as fixed and definitive compensation.

<PAGE>   28

                                                                              28

19. Disputes

      The present Convention is governed by French law. Any dispute relative to
      the formation, construction, performance or cancellation of the present
      Convention that cannot be resolved by the Parties in a friendly fashion
      shall be submitted to the competent courts of Paris.

20. Election of domicile

      The Parties elect domicile at the respective addresses indicated in
      article 5 for management of the present Convention. Notifications by
      registered mail with receipt by telephone and/or by fax shall be sent to
      the said addresses.

21. Appendices

      Appendix No. 1 - SANEF motorway network

      Appendix No. 2 - Schedule of availabilities of the F.o.n. and of the SANEF
                       Sites

      Appendix No. 3 - OPERATOR's general needs

      Appendix No. 4 - Technical specifications and acceptances of the F.o.n.

      Appendix No. 5 - SANEF safety rules

      Appendix No. 6 - Rates - General conditions

      Appendix No. 7 - Confidentiality agreement

      Appendix No. 8 - Payment schedule


                Signed in Paris in two copies on February 3, 1997


                    SANEF                   HERMES EUROPE RAILTEL B.V.
                                                         
                 (Signature)                        (Signature)
                                                         
               Michel AMILHAT                       Jan LOEBER
                                                         
              Managing Director                  Managing Director

<PAGE>   29

                                   APPENDIX 1


                             SANEF MOTORWAY NETWORK

<PAGE>   30

                             CONFIDENTIAL TREATMENT


                                     [Map]


        ## MATERIAL OMITTED AND SEPARATELY FILED UNDER A REQUEST
        FOR CONFIDENTIAL TREATMENT ##


<PAGE>   31

                                   APPENDIX 2

               PLANNING ON AVAILABILITY OF F.O.N. AND SANEF SITES
<PAGE>   32

                             CONFIDENTIAL TREATMENT


================================================================================
                                   APPENDIX 2

    Planning on availability of "F.o.n." [fiber optic cables] and SANEF sites

================================================================================

================================================================================
          Highway                    Section                    Date
- --------------------------------------------------------------------------------
## MATERIAL OMITTED AND SEPARATELY FILE UNDER A REQUEST FOR CONFIDENTIAL 
TREATMENT ##
- --------------------------------------------------------------------------------
## MATERIAL OMITTED AND SEPARATELY FILE UNDER A REQUEST FOR CONFIDENTIAL
TREATMENT ##
- --------------------------------------------------------------------------------
## MATERIAL OMITTED AND SEPARATELY FILE UNDER A REQUEST FOR CONFIDENTIAL
TREATMENT ##
- --------------------------------------------------------------------------------
## MATERIAL OMITTED AND SEPARATELY FILE UNDER A REQUEST FOR CONFIDENTIAL
TREATMENT ##
- --------------------------------------------------------------------------------
## MATERIAL OMITTED AND SEPARATELY FILE UNDER A REQUEST FOR CONFIDENTIAL
TREATMENT ##
================================================================================

The above-referenced ## MATERIAL OMITTED AND SEPARATELY FILE UNDER A REQUEST FOR
CONFIDENTIAL TREATMENT ## and ## MATERIAL OMITTED AND SEPARATELY FILE UNDER A
REQUEST FOR CONFIDENTIAL TREATMENT ## sections are included as a guide and are
not part of the services requested by the OPERATOR on the date the Agreement was
signed.

                                Outfitted Routes

================================================================================
                 Routes                                  Date
- --------------------------------------------------------------------------------
## MATERIAL OMITTED AND SEPARATELY FILE UNDER A REQUEST FOR CONFIDENTIAL
TREATMENT ##
- --------------------------------------------------------------------------------
## MATERIAL OMITTED AND SEPARATELY FILE UNDER A REQUEST FOR CONFIDENTIAL
TREATMENT ##
================================================================================
<PAGE>   33

                                   APPENDIX 3

                            OPERATOR'S GENERAL NEEDS
<PAGE>   34

                             CONFIDENTIAL TREATMENT

                                                                              29

================================================================================
                                   APPENDIX 3

                            OPERATOR'S general needs

================================================================================


The OPERATOR's general needs are indicated below. The number of pairs of F.o.n.
indicated corresponds to the number of pairs actually available to the OPERATOR
on the indicated date.


- --------------------------------------------------------------------------------
                    Section                            1997
- --------------------------------------------------------------------------------
## MATERIAL OMITTED AND SEPARATELY FILE UNDER A REQUEST FOR CONFIDENTIAL
TREATMENT ##
- --------------------------------------------------------------------------------
## MATERIAL OMITTED AND SEPARATELY FILE UNDER A REQUEST FOR CONFIDENTIAL
TREATMENT ##
- --------------------------------------------------------------------------------
## MATERIAL OMITTED AND SEPARATELY FILE UNDER A REQUEST FOR CONFIDENTIAL
TREATMENT ##
- --------------------------------------------------------------------------------
<PAGE>   35

                                   APPENDIX 4

              TECHNICAL SPECIFICATIONS AND ACCEPTANCE OF THE F.O.N.
<PAGE>   36

                             CONFIDENTIAL TREATMENT

                                                                              30

================================================================================
                                   APPENDIX 4

                     Technical Specifications of the F.o.n.

             Specifications of the acceptance tests for the F.o.n.

================================================================================

1.   Technical specifications of the F.o.n.

The F.o.n. shall comply with the UIT-T-G.652 standard and with the associated
recommendations.

The F.o.n. are of the ## MATERIAL OMITTED AND SEPARATELY FILE UNDER A REQUEST
FOR CONFIDENTIAL TREATMENT ## type and must be used in the ## MATERIAL OMITTED
AND SEPARATELY FILE UNDER A REQUEST FOR CONFIDENTIAL TREATMENT ## wavelength

2.   Specification of the acceptance tests in the F.o.n. Districts

The acceptance tests shall be carried out by measuring the attenuation of a
light signal in the various F.o.n. Districts delivered by the SANEF.

In each F.o.n. District, the attenuation measured in dB at ## MATERIAL OMITTED
AND SEPARATELY FILE UNDER A REQUEST FOR CONFIDENTIAL TREATMENT ## shall have to
be less than:

## MATERIAL OMITTED AND SEPARATELY FILE UNDER A REQUEST FOR CONFIDENTIAL
TREATMENT ## in which

L: designates the length of the F.o.n. District in question, expressed in
kilometres,

Ns: designates the number of weldings made on the F.o.n. on the F.o.n.
District in question.

Nc: designates the number of Connectors equipping the F.o.n. on the F.o.n.
District in question.

Furthermore, the following values shall be respected:

o    Minimum adaptation weakening of a connector: ## MATERIAL OMITTED AND
     SEPARATELY FILE UNDER A REQUEST FOR CONFIDENTIAL TREATMENT ##

o    Maximum chromatic dispersion: ## MATERIAL OMITTED AND SEPARATELY FILE UNDER
     A REQUEST FOR CONFIDENTIAL TREATMENT ##

o    Polarisation dispersion in maximum mode: ## MATERIAL OMITTED AND SEPARATELY
     FILE UNDER A REQUEST FOR CONFIDENTIAL TREATMENT ##

o    ## MATERIAL OMITTED AND SEPARATELY FILE UNDER A REQUEST FOR CONFIDENTIAL
     TREATMENT ## welds at the most per F.o.n. District on one and the same
     optical fibre

3.   Factory acceptances

The SANEF shall inform the OPERATOR of the characteristics of the F.o.n. to be
installed, and particularly the chromatic dispersion values and the mode
polarisation dispersion values.
<PAGE>   37

                                   APPENDIX 5

                          SAFETY REGULATIONS OF SANEF
<PAGE>   38

                      SECTION ON GENERAL SAFETY REGULATIONS

                                TABLE OF CONTENTS

CHAPTER ()        INTRODUCTION

CHAPTER I         GENERAL PROVISIONS

     I.1    Notification Prior to Opening of Work Site

     I.2    Suspension of Work

     I.3    Transportation and Movement of Workers

     I.4    Personal Safety

     I.5    Sanctions and Penalties

CHAPTER II        TRAFFIC CONTROL

     II.1   Operation of Vehicles

     II.2   Changing Traffic Direction

     II.3   Traffic Rules Regarding Both Slow-Moving Vehicles and Machinery

     II.4   Marking and Outfitting of Vehicles

CHAPTER III       TRAFFIC SIGNS AT WORK SITE

     III.1  Opening of Work Site

     III.2  Source of and Setting Up of Traffic Signs

     III.3  Protection and Repositioning of Traffic Signs

CHAPTER IV        SPECIFIC INSTRUCTIONS

     IV.1   Traffic Signs at Work Site

     IV.2   Schedules and Work Periods

     IV.3   Traffic Conditions at Work Site Entrance and Exit 

     IV.4   Work Site Security

     IV.5   Use of Service Access Gates 

     IV.6   Length of Work Site 

     IV.7   Supplementary Temporary Traffic Signs 

     IV.8   Toll Exemptions 

     IV.9   Health and Safety
<PAGE>   39

                           CHAPTER () -- INTRODUCTION

[Summary: Informs contractors of basic safety regulations and procedures
pertaining to traffic conditions when work is taking place on an active
highway.]
<PAGE>   40

                         CHAPTER I - GENERAL PROVISIONS

ARTICLE I.1     NOTIFICATION PRIOR TO THE OPENING OF WORK SITE

[Summary: Sets forth procedures for communications with the district
supervisor prior to the opening of the work site.]

ARTICLE I.2     SUSPENSION OF WORK

[Summary: States that work may be stopped if safety conditions are deemed
inadequate.]

ARTICLE I.3     TRANSPORTATION AND MOVEMENT OF WORKERS

[Summary: Describes in great detail the proper way of walking, driving,
parking and dealing with highway traffic in general around a work site in all
types of weather conditions. Safety is heavily emphasized.]

ARTICLE I.4     PERSONAL SAFETY OF THE CONTRACTOR'S REPRESENTATIVES

[Summary: States that wearing safety jackets and reflectors is mandatory for
everyone.]

ARTICLE I.5     SANCTIONS AND PENALTIES

[Summary: States that a failure to observe safety rules will result in the
closing of the work site and/or the dismissal of either or both the company
and the work site supervisor.]
<PAGE>   41

                          CHAPTER II -- TRAFFIC CONTROL

ARTICLE II.1    OPERATION OF WORK SITE VEHICLES AND MACHINERY

[Summary: Details the restrictions on the movements of vehicles and
machinery.]

ARTICLE II.2    CHANGE OF DIRECTION OF TRAFFIC

[Summary: Indicates where it is possible to change the direction of traffic.]

ARTICLE II.3    TRAFFIC RULES REGARDING SLOW OR UNREGISTERED
                VEHICLES OR MACHINERY

[Summary: States that, due to the elevated speeds of highway traffic,
slow-moving vehicles must either be transported or their movement must be
protected with the use of special traffic signs for which SANEF is
responsible.]

ARTICLE II.4    MARKING AND OUTFITTING OF VEHICLES

[Summary: States that all work vehicles registered with the District
Supervisor must be equipped with reflecting devices and lights, such as
emergency flashing beacons.]
<PAGE>   42

                    CHAPTER III -- TRAFFIC SIGNS AT WORK SITE

ARTICLE III.1   OPENING OF WORK SITE

[Summary: States that prescribed traffic signs must be set up before the work
site can be opened.]

ARTICLE III.2   SOURCE OF AND SETTING UP OF TRAFFIC SIGNS

[Summary: States that, with some exceptions, all traffic equipment will be
supplied and set up by SANEF.]

ARTICLE III.3   PROTECTION AND REPOSITIONING OF TRAFFIC SIGNS

[Summary: Pertains to the monitoring and upkeep of temporary traffic signs
and also provides instructions on whom to alert in case of a traffic
accident.]
<PAGE>   43

                       CHAPTER IV -- SPECIFIC INSTRUCTIONS

[Summary: The specific instructions mentioned in this section concern traffic
signs, work schedules, traffic interruption, night work, size of work site etc.
The instructions may be modified during the course of the work.]

ARTICLE IV.1    TRAFFIC SIGNS AT WORK SITE

[Summary: Details the four classes of work sites insofar as they relate to
specific traffic signs.]

ARTICLE IV.2    SCHEDULES AND WORK PERIODS

[Summary: Details the conditions (time, traffic density, weather, etc.) under
which the work site may be operational.]

ARTICLE IV.3    TRAFFIC CONDITIONS AT ENTRANCE, EXIT OR WITHIN
                WORK SITE ZONES

[Summary: States that traffic conditions at entrances, exits or within work site
zones will be established during preliminary meetings with the District
Supervisor.]

ARTICLE IV.4    SECURITY

[Summary: Warns the contractor of the risk of theft and vandalism, and holds
the contractor responsible for security measures.]

ARTICLE IV.5    USE OF SERVICE ACCESS GATES

[Summary: States that the contractor must make sure that these gates are to be
used by proper personnel (contractor's employees, police vehicles and SANEF
vehicles) in a safe manner, and that they are to be closed after use. The
contractor must include in its price the expenses incurred by the opening and
closing of the gates or the hiring of a guard. All matters pertaining to the
opening and closing of the gates will be presented to the District Supervisor.]
<PAGE>   44

ARTICLE IV.6    LENGTH OF WORK SITE AREA -- DISTANCES BETWEEN
                WORK SITES

[Summary: Defines the maximum length of a work site and the distances separating
consecutive work sites.]

ARTICLE IV.7    SUPPLEMENTARY TEMPORARY TRAFFIC SIGNS

[Summary: States that, in addition to the traffic signs set up by SANEF, the
contractor will set up its own signs when working away from the roadway area.]

ARTICLE IV.8    EXEMPTION FROM TOLLS

[Summary: States that vehicles belonging to the contractor are exempted from
tolls.]

ARTICLE IV.9    HEALTH AND SAFETY

[Summary: Indicates what actions should be taken in case of a traffic accident.]
<PAGE>   45

                                   APPENDIX 6

                           RATES -- GENERAL CONDITIONS
<PAGE>   46

                             CONFIDENTIAL TREATMENT

                                                                              31

================================================================================

                                   Appendix 6

                                      RATES
                               General Conditions

================================================================================

1.   FEE CALCULATION (R1)

The R1 fee due in exchange for the availability of F.o.n. is calculated by
multiplying the base price of the work unit by the number of work units defined
below (ss. 3.1), reduced by the general discounts defined in ss. 3.4 if any.

The obtained result is then revised in accordance with a revision formula
defined in the Convention.

2.   BASE PRICE OF THE WORK UNIT

The base price excluding taxes of the work unit expressed in KF (000 F) per km
is defined in the light of the year of contract signature regarding availability
of the pair of F.o.n. in accordance with the table given below.

- --------------------------------------------------------------------------------
   1996-1997       1998         1999         2000          2001         2002
- --------------------------------------------------------------------------------
## MATERIAL OMITTED AND SEPARATELY FILE UNDER A REQUEST FOR CONFIDENTIAL 
TREATMENT ##
- --------------------------------------------------------------------------------

Remark: The values given in the above table are values as of December 1996,
and are revised in accordance with the revision formula given in the
Convention.

3.   CALCULATION OF THE NUMBER OF WORK UNITS

3.1  Definition

The number of work units (U.O) made available for a year is equal to the length
of an Equipped Motorway Section in kilometres multiplied by the number of pairs
made available.

For instance, on a 100-kilometre Motorway Section, a pair of F.o.n. made
available represents ## MATERIAL OMITTED AND SEPARATELY FILE UNDER A REQUEST FOR
CONFIDENTIAL TREATMENT ## for the year in question.
<PAGE>   47

                             CONFIDENTIAL TREATMENT

                                                                              32

3.2  Motorway sections

The work units may be requested by the Operators on the following Motorway
Sections:

- --------------------------------------------------------------------------------
Motorway                      Section                       Length
- --------------------------------------------------------------------------------
## MATERIAL OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR CONFIDENTIAL 
TREATMENT ##
- --------------------------------------------------------------------------------
## MATERIAL OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR CONFIDENTIAL 
TREATMENT ##
- --------------------------------------------------------------------------------
## MATERIAL OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR CONFIDENTIAL 
TREATMENT ##
- --------------------------------------------------------------------------------
## MATERIAL OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR CONFIDENTIAL 
TREATMENT ##
- --------------------------------------------------------------------------------
## MATERIAL OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR CONFIDENTIAL 
TREATMENT ##
- --------------------------------------------------------------------------------
## MATERIAL OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR CONFIDENTIAL 
TREATMENT ##
- --------------------------------------------------------------------------------

(*) this section cannot be taken separately. It must necessarily be associated
with at least one of the other two sections of which ## MATERIAL OMITTED AND
SEPARATELY FILED UNDER A REQUEST FOR CONFIDENTIAL TREATMENT ## constitutes the
extremity.

3.3  Discounts by section

Each motorway section defines a certain quantity to U.O corresponding to the
length of the said section.

3.3.1 Quantitative discounts

     ## MATERIAL OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR CONFIDENTIAL
     TREATMENT ## discount is granted for the first pair of F.o.n.

     ## MATERIAL OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR CONFIDENTIAL
     TREATMENT ## discount is calculated on the length of the section in
     question for the second pair of F.o.n., which defines a new quantity of
     U.O.

     ## MATERIAL OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR CONFIDENTIAL
     TREATMENT ## discount is calculated on the length of the section in
     question starting with the third pair of F.o.n., which defines a new
     quantity of U.O.

3.3.2 "Securisation"

If an operator wishes to make a pair of F.o.n. secured, the said security is
obtained by using another pair of F.o.n. located on the other side of the
motorway.

The number of U.O associated with a pair used on a standby basis is equal to ##
MATERIAL OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR CONFIDENTIAL TREATMENT
## of the number of U.O of the pair made secured in this way, starting with the
first F.o.n. requested by the operator.

3.3.3 Calculation of the number of U.O per section

The number of U.O for each section is the sum of the different U.O
associated with the F.o.n. requested for the said section.

3.4  Additional discounts by pairs

Additional discounts are applied to each pair of F.o.n. The said discounts may
be cumulated in succession in the following order:
<PAGE>   48

                             CONFIDENTIAL TREATMENT

                                                                              33

3.4.1 Length discount

If a pair of F.o.n. is requested for all sections offered by the SANEF, then
the said F.o.n. benefits from a "length discount" of ## MATERIAL OMITTED AND
SEPARATELY FILED UNDER A REQUEST FOR CONFIDENTIAL TREATMENT ##

3.42 Duration discount

if a pair of F.o.n. is requested for a duration of more than ## MATERIAL OMITTED
AND SEPARATELY FILED UNDER A REQUEST FOR CONFIDENTIAL TREATMENT ## years, an
additional discount is applied to the U.O reduced by the length discount if
any, pursuant to the following scale:

- --------------------------------------------------------------------------------
                Duration                               Discount
- --------------------------------------------------------------------------------
     Up to ## MATERIAL OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR
     CONFIDENTIAL TREATMENT ## years inclusive
- --------------------------------------------------------------------------------
     ## MATERIAL OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR CONFIDENTIAL
     TREATMENT ## years
- --------------------------------------------------------------------------------
     ## MATERIAL OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR CONFIDENTIAL
     TREATMENT ## years
- --------------------------------------------------------------------------------
     ## MATERIAL OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR CONFIDENTIAL
     TREATMENT ## years
- --------------------------------------------------------------------------------
     ## MATERIAL OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR CONFIDENTIAL
     TREATMENT ## years
- --------------------------------------------------------------------------------
     ## MATERIAL OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR CONFIDENTIAL
     TREATMENT ## years
- --------------------------------------------------------------------------------

3.4.3 Special discounts

For a fee corresponding to ## MATERIAL OMITTED AND SEPARATELY FILED UNDER A
REQUEST FOR CONFIDENTIAL TREATMENT ## pairs of secured F.o.n. in the rate list,
the SANEF shall make ## MATERIAL OMITTED AND SEPARATELY FILED UNDER A REQUEST
FOR CONFIDENTIAL TREATMENT ## pairs of secured F.o.n. available.

4.   Other conditions

The rates given above are valid under the conditions laid down in the
Convention.

5.   Contract changes

In case of modification of the number of F.o.n. on the Equipped Motorway
Section, or in case new Equipped Motorway Sections go into use, the new fee
value is calculated and the amount of the guarantee regarding payment of the
fees is modified if appropriate (cf. art. 14.4 of the Convention).

6.   Fee for making premises or land parcels available (R2)

If the SANEF makes premises or bare land parcels available, this shall give rise
to payment of an R2 fee calculated on the basis of the following rate
conditions:

*    Premises: ## MATERIAL OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR
     CONFIDENTIAL TREATMENT ## and per year

*    Lands: ## MATERIAL OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR
     CONFIDENTIAL TREATMENT ## and per year.
<PAGE>   49

                                                                              34

7.   General conditions regarding invoicing for the fees

The fees are payable in advance. They are paid for the totality of a fee at the
time of contact signature. At the end of the first calendar year or of the first
calendar quarter-year, depending on the periodicity adopted in the Convention
for the fee, SANEF will invoice the OPERATOR for an amount to be calculated so
as to reconstitute a balance corresponding to the totality of a fee.

Those general invoicing conditions are modified by the special provisions, if
any, agreed in the Convention.
<PAGE>   50

                                   APPENDIX 7

                            CONFIDENTIALITY AGREEMENT
<PAGE>   51

                            CONFIDENTIALITY AGREEMENT

PARTIES:

HERMES EUROPE RAILTEL B.V., "HER", a Dutch Company, whose registered office is
at Radioweg 2, 1305 KW Almere, The Netherlands, and whose principal place of
business is at Avenue Louise 106, 1050 Brussels, Belgium; and

SOCIETE DES AUTOROUTES DU NORD ET DE L'EST DE LA FRANCE S.A.
"SANEF", of 4l Bis Avenue Bosquet 75007 Paris France.

In connection with a potential transaction by and between HER and SANEF relating
to the supply by SANEF of dark fibre and ancillary accommodation and services to
HER (the Transaction), the Parties have requested certain information concerning
each other and their respective affiliates. As a condition to providing
confidential or proprietary information the Parties agree to treat the
Evaluation Information (as defined below) as confidential in accordance with the
provisions of this Agreement.

Evaluation Information is defined as any technical or commercial information
concerning a Party (the Disclosing Party) which has been or may be provided by
the Disclosing Party or any of its affiliates or their respective directors,
officers, employees or agents, in oral, written, visual, magnetic, electronic or
other form to the other Party (the Recipient) or to any Recipient's directors,
officers, employees, lawyers, accountants, financial advisors or other agents
(collectively, Representatives), regardless of whether specifically identified
as confidential, together with analyses, compilations, studies or other
documents prepared by Recipient or Recipient's Representatives, which contain or
otherwise reflect such information, or Recipient's review of, or interest in the
Disclosing Party.

The term 'Evaluation Information' shall not include any information which:

     i.   was or becomes generally available to the public other than as a
          result of a disclosure by Recipient;

     ii.  was available to Recipient on a non confidential basis prior to its
          disclosure to the Recipient by the Disclosing Party; or

     iii. was or becomes available to Recipient on a non-confidential basis from
          a source other than the Disclosing Party or its affiliates, provided
          that such source is not bound by a confidentiality agreement with the
          Disclosing Party.

Recipient hereby agrees that the Evaluation Information will be used solely for
the purpose of evaluating the Transaction and that such information will be kept
confidential by Recipient and its Representatives and will not be disclosed or
divulged by Recipient or any of its Representatives without the express prior
written consent of the Disclosing Party. However, Recipient is permitted to
disclose the Evaluation Information to those of its Representatives (other than
any such person or a director, officer, employee or a substantial investor in a
direct competitor of the Disclosing Party) who need to know such information for
the purpose of evaluating the Transaction. Recipient agrees that such
Representatives shall be informed of the confidential nature of such
information, shall be directed by Recipient to treat such information as
confidential and shall agree to be bound by the provisions of this
Confidentiality Agreement.
<PAGE>   52

Recipient will be responsible for any breach of this Confidentiality Agreement
by its Representatives (including employees who, after the first date of
disclosure of Evaluation Information hereunder, become former employees).
Recipient agrees, at its sole expense, to take all reasonable measures,
including but not limited to court proceedings, to restrain its Representatives
from unauthorised disclosure or use of Evaluation Information.

In addition, without the prior written consent of the Disclosing Party,
Recipient will not disclose and will direct its Representatives not to disclose
to any person the fact that discussions or negotiations are taking place
concerning a possible Transaction, or any of the terms, conditions or other
facts with respect to any such Transaction, including the status thereof. The
term 'person' as used in this letter shall be broadly interpreted to include
without limitation any individual, governmental body, partnership, corporation
or other entity.

Upon the request of the Disclosing Party, Recipient will promptly deliver to the
Disclosing Party all documents provided by the Disclosing Party or any of its
affiliates or their respective directors, officers, employees, or agents, to
Recipient or its Representatives constituting Evaluation Information, without
retaining any copies, extracts or other reproductions of all or part thereof. In
the event of such request, all documents, memoranda, notes and other materials
prepared by Recipient or its Representatives based on the Evaluation Information
will be promptly destroyed. Notwithstanding the return or destruction of any
Evaluation Information and materials based on the Evaluation Information,
Recipient will continue to be bound by its obligations of confidentiality and
other obligations hereunder.

Although the Disclosing Party and its affiliates have endeavoured to include in
the Evaluation Information known to them which they believe to be relevant for
the purpose of Recipient's investigation, Recipient understands, acknowledges
and agrees that neither the Disclosing Party nor any of its affiliates, nor any
of their respective directors, officers, employees or agents, makes any
representation or warranty, expressed or implied, as to the accuracy or
completeness of the Evaluation Information. Recipient understands, acknowledges
and agrees that neither the Disclosing Party nor any of its affiliates, nor any
of their respective directors, officers, employees or agents shall have any
liability to Recipient or any of Recipient's Representatives resulting from the
use of any of the Evaluation Information by Recipient or Recipient's
Representatives.

The Confidentiality Agreement shall be governed by and construed in accordance
with the laws of France.



Approved and agreed:



By:   SANEF                                  HER

Signature: /s/ Jean Claude A [ILLEGIBLE]     /s/ Jan Loeber
           -----------------------------     -------------------------------

Name: Jean Claude A[ILLEGIBLE]               Jan Loeber

Position: Chairman                           MD

Date: 13th May '96                           Date: 10 May '96


                                       2
<PAGE>   53

                                   APPENDIX 8

                             BILLS-RECEIVABLE BOOK
<PAGE>   54

                             CONFIDENTIAL TREATMENT

================================================================================
                                   APPENDIX 8

                             Bills-Receivable Book
================================================================================

1.   If the OPERATOR pre-finances.


                                    [Table] ## MATERIAL OMITTED AND SEPARATELY 
                                               FILED UNDER A REQUEST FOR 
                                               CONFIDENTIAL TREATMENT ##


2.   If the OPERATOR does not pre-finance.


                                    [Table] ## MATERIAL OMITTED AND SEPARATELY 
                                               FILED UNDER A REQUEST FOR 
                                               CONFIDENTIAL TREATMENT ##



<PAGE>   55

                             CONFIDENTIAL TREATMENT


                                    [Table]
                       ## MATERIAL OMITTED AND SEPARATELY
                           FILED UNDER A REQUEST FOR
                           CONFIDENTIAL TREATMENT ##


<PAGE>   56

                             CONFIDENTIAL TREATMENT


                              Calculation of R1 Fee


                                    [Table]


                       ## MATERIAL OMITTED AND SEPARATELY
                           FILED UNDER A REQUEST FOR
                           CONFIDENTIAL TREATMENT ##

<PAGE>   57

                             CONFIDENTIAL TREATMENT

                                                                              36

================================================================================

               Rider No. 1 to the Convention of February 3, 1997

                          SANEF/ HERMES EUROPE RAILTEL

================================================================================

Article 1

The second sentence of article 14.3.2 of the Convention is modified as follows:

"In this connection, the OPERATOR shall inform the SANEF of its decision to
provide or not provide the said prefinancing by registered mail with receipt
sent as early as possible, and by May 22, 1997, at the latest."

Article 2

Article 14.3.3 is cancelled and is replaced by the following wording:

"The OPERATOR shall have the option of providing, to the SANEF's benefit,
prefinancing (P) equal to ## MATERIAL OMITTED AND SEPARATELY FILED UNDER A
REQUEST FOR CONFIDENTIAL TREATMENT ## excluding taxes payable by June 20, 1997,
and releasing the OPERATOR from payment of the R1 fee for ## MATERIAL OMITTED
AND SEPARATELY FILED UNDER A REQUEST FOR CONFIDENTIAL TREATMENT ## years
starting with the date of availability of the last Equipped Motorway Section of
each Equipped Itinerary, within the framework of the payment schedule in
Appendix 8.

The SANEF shall issue an invoice addressed by registered mail with receipt to
the OPERATOR upon receiving the registered letter mentioned in section 14.3.2
informing it of its decision to provide the prefinancing. The downpayment made
pursuant to section 14.3.1 shall be applied to the amount of the prefinancing
invoice (P).

Payment of the prefinancing shall occur upon submission of the corresponding
invoice by bank transfer to a SANEF account within a maximum of 30 days starting
with the day of dispatch of the letter mentioned in section 14.3.2, and at the
latest on June 20, 1997.

In case of early payment, a payment discount will be granted on the basis of the
money market overnight rate less ## MATERIAL OMITTED AND SEPARATELY FILED UNDER
A REQUEST FOR CONFIDENTIAL TREATMENT ##.

If payment of P has not been made by June 20, 1997, the Parties shall consider
that the OPERATOR is not providing prefinancing, and unless the latter calls
upon the termination clause stipulated in article 18 the F.o.n. shall be made
available under the conditions of the present Convention without any
prefinancing discount, R1 being payable as of the first year of the availability
of the F.o.n. In this case, the downpayment made to the SANEF as prefinancing
under article 14.3.1 of the Convention shall be applied to the amount of the
said invoice.
<PAGE>   58

                             CONFIDENTIAL TREATMENT

                                                                              37

In exchange for the prefinancing, and subject to full payment thereof by June
20, 1997, the OPERATOR shall benefit for the duration of the present Convention
from an exceptional discount on the R1 fee that will vary in the following
proportions depending on the date of payment of P:

## MATERIAL OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR CONFIDENTIAL
TREATMENT ##, in which J represents the number of calendar days between the
payment date and January 30, 1997."

Article 3

The second sentence of the second paragraph of article 9.1.2 is modified as
follows:

"However, the penalties as a whole are subject to a ceiling of ## MATERIAL
OMITTED AND SEPARATELY FILED UNDER A REQUEST FOR CONFIDENTIAL TREATMENT ## of
the amount of the prefinancing mentioned in article 14.3, and the penalties
shall be suspended for the first seven days."



Paris, on

          For SANEF                          For HERMES EUROPE RAILTEL BV

                                                       (Signature)

       Michel AMILHAT                                   Jan LOEBER
      Managing Director                             Managing Director



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