Exhibit 10.25

 

THIS FIRST AMENDMENT is effective on February 2, 2004 (the “Effective Date”),

 

between

 

Vodafone Libertel N.V., whose registered office is at Avenue Ceramigue 300, 6221
KX Maastricht, the Netherlands (‘Vodafone’) of the one part

 

and

 

Sycamore Networks, Inc., a Delaware corporation, whose principal place of
business is at 220 Mill Road, Chelmsford, MA 01824, USA (‘Supplier’) of the
other part.

 

WHEREAS:

 

Vodafone and Supplier have entered into an Agreement for the Provision of
Hardware, Software, Training, Support and Maintenance and Project Management
Services to Vodafone Libertel N.V., dated June 12, 2002 (the “Purchase
Agreement”) and wish to amend the Purchase Agreement as set forth below.

 

NOW THEREFORE: for good and valuable consideration, the receipt and sufficiency
of which is hereby acknowledged the parties hereby agree to modify the Purchase
Agreement as follows:

 

1. Capitalized terms used herein and not otherwise defined herein shall have
such meaning as set forth in the Purchase Agreement.

 

2. Section 14    Price

 

The first sentence of this section is deleted in its entirety and replaced with
the following:

 

The Price for each Deliverable shall be as detailed within Supplier’s then
current [*].

 

3. Section 15.7    Invoices

 

Sections 15.7.1 and 15.7.2 of the Purchase Agreement are deleted in their
entirety and replaced with the following:

 

  15.7.1 Purchases from Supplier shall be invoiced by Supplier and paid by
Vodafone in [*] unless otherwise agreed in writing by the parties.

 

* Certain information on this page has been omitted and filed separately with
the Securities and Exchange Commission. Confidential Treatment has been
requested with respect to the omitted portions. Asterisks within brackets denote
omission.

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The Supplier shall send invoices to Vodafone for each Deliverable in accordance
with the Bill of Material and Price Summary attached to the Purchase Order and
section 15.7.2, at the following address

 

Vodafone Libertel N.V.

Afdeling Crediteuren

P.O. Box 1500

6201 BM Maastricht

The Netherlands

 

  15.7.2 Each invoice shall quote the following information, as applicable:

 

       the Agreement number.

       the specific nodes in the ring that is the subject of the Purchase Order

       the description of the Deliverables provided

       a copy of the [*] above

       the description of and Site(s) where EFI&T services were performed

       the unit [*] rendered

 

4. Appendix B    Deliverables, Services and Prices

 

Appendix B of the Purchase Agreement is deleted in its entirety.

 

5. Service Offerings

 

Product Family: Service

 

Category: Service – Bundled Package

 

Part

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

 

Label

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

 

Part Description

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

 

Vodafone NL Price

(US Dollars)

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

203002   Premium Package  

On-site Hardware

Maintainence 4-Hour H/W

Response, 24x7 TAC

Support, SW Maint.

Platforms & Silvx, Online STAR.

  [*]

Category: Service – Installation – Labor and Materials

Part

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

 

Label

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

 

Part Description

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

 

Vodafone NL Price

(US Dollars)

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

200012   EFI&T  

Installation Services:

EFI&T

  [*] 200013   Installation Related Materials   Installation Materials   Custom
Quote

 

6. The Purchase Agreement, as amended hereby, and each Appendix thereto shall
remain in full force and effect and each is hereby ratified and confirmed.

 

* Certain information on this page has been omitted and filed separately with
the Securities and Exchange Commission. Confidential Treatment has been
requested with respect to the omitted portions. Asterisks within brackets denote
omission.

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7. In the event of a conflict between the terms and conditions of this First
Amendment and the Purchase Agreement, this First Amendment shall prevail. Except
as expressly modified in this First Amendment, all other terms and conditions of
the Purchase Agreement shall remain in full force and effect.

 

IN WITNESS WHEREOF, the parties have caused this First Amendment to be executed
by their respective, duly authorized representatives:

 

Signed for and on

behalf of:

Vodafone

     

Signed for and on

behalf of:

Sycamore Networks, Inc.

By:           By:     Name:           Name:     Title:           Title:    

Date:

         

Date:

   

Witness for and on

behalf of:

Vodafone

     

Witness for and on

behalf of:

Sycamore Networks, Inc.

By:           By:     Name:           Name:     Title:           Title:    

Date:

         

Date: