Document:

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                                                                    Exhibit 4.29

                                  SIDE LETTER
                                       TO
                           THE PARTNERSHIP AGREEMENT
               K.TEL.237/HK.810/UTA-00/01 DATED 30 NOVEMBER 2001
                                      FOR
                         THE CONSTRUCTION AND PROVISION
                    OF HIGH PERFORMANCE BACKBONE - SUMATERA

                        NO.K.TEL.116/HK.830/UTA-00/2003

                              DATED JUNE 12, 2003
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                                   SIDE LETTER
                                       TO
                           THE PARTNERSHIP AGREEMENT
                K.TEL.237/HK.810/UTA-00/01 DATED 30 NOVEMBER 2001
                                       FOR
                         THE CONSTRUCTION AND PROVISION
                     OF HIGH PERFORMANCE BACKBONE-SUMATERA

                        NO. K.TEL. 116 /HK.830/UTA-00/2003

This Side Letter is made the day of Twelve month June year 2003, by and
between:

I.   PT. TELEKOMUNIKASI INDONESIA, TBK, a company telecommunications services
     and network provider, established and organized under the laws of the
     Republic of Indonesia, having its registered office at JI.Japati No.1
     Bandung, Indonesia, in this purpose represented by KRISTIONO, Title
     President Director, hereinafter in this Side Letter shall be referred to as
     TELKOM,

AND

II.  PIRELLI - SIEMENS CONSORTIUM, consists of PT. PIRELLI CABLES INDONESIA and
     PT. SIEMENS INDONESIA, a consortium already established and now legalized
     by Dr. IRAWAN SOERAJO, SH, Msl, Notary in Jakarta on 30, November 2001
     under Legalization Number 457/L/2001, in this purpose represented by
     STEFANO POLI, Chief Executive Officer PT. PIRELLI CABLES INDONESIA, having
     its office at Gedung BRI, Suite 1502, JI.Jendral Sudirman Kav.44-48,
     Jakarta and represented-by ROLF UNTERBERGER, Director PT. SIEMENS INDONESIA
     and HERBERT FETTIG, Deputy Director PT. SIEMENS, having its office at
     Siemens Business Park Building B, JI.MT.Haryono Kav. 58-60 Jakarta 12780,
     companies established under the laws of Republic of Indonesia,

                                       1

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hereinafter in this Side Letter shall be referred to as PARTNER.

                                   WITNESSSETH

a.   WHEREAS, TELKOM and PARTNER have signed the Partnership Agreement
     NO.K.TEL.237/HK.810/UTA-00/01 dated November 30,2001 (Main Agreement) and
     its Amendment No.K.TEL.90/HK.820/UTA-00/2003 dated April 16, 2003
     hereinafter collectively referred to as Agreement;

b.   WHEREAS, TELKOM and PARTNER have held meeting to discuss regarding the
     splitting value for sub-system and sources of fund of High Performance
     Backbone Sumatera project dated April 10, 2003 and May 1, 2003;

c.   WHEREAS, TELKOM and PARTNER have held meeting to discuss regarding the
     method of invoicing for partial acceptance test for Sub-system-6 of High
     Performance Backbone Sumatera project dated May 21,2003.

NOW THEREFORE, TELKOM AND PARTNER agreed to amend the Main Agreement as
specified in the following terms and conditions:

                                    ARTICLE 1
                                 CONTRACT PRICE

TELKOM and PARTNER agreed that the additional of Contract Price due to the
additional scope of works as stated in the Article 2 para (2) item b. of
Amendment No.1 of US$2,830,086.19 and Rp.1.699.138.114,- is lump sum with the
meaning no change either plus or minus in the performed of works based on the
Amendment No.1

                                       2

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                                    ARTICLE 2
                              INVOICING OF PROJECT

2.1. TELKOM and PARTNER agreed that the invoicing of project based on the source
     of fund will be made with the following conditions:

     a.  For the bill of quantity and unit price of the scope of works which has
         performed based on the Original Agreement shall be applied as stated in
         the Agreement.

     b.  The additional scope of works which performed based on the Amendment
         No.1 shall be applied as described, in Article 1 of this Side Letter.

2.2. The detail of bill of quantity and the unit price above as stated in
     Appendix-1 of this Side Letter.

                                   ARTICLES 3
                                   APPENDICES

3.1. The following Appendixes and documents, including their references/
     attachments mentioned therein, are attached and shall constitute integral
     part of this Side Letter.

     Appendix-1 : The Details of BoQ

     Appendix-2 : The Minutes of meeting
                  Dated: April 10, 2003, May 1, 2003 and May 21, 2003

                                    ARTICLE 4
                                 MISCELLANEOUS.

4.1. This Side Letter is made as integral part of the Agreement.

4.2. All stipulations and provisions stated in the Agreement shall remain valid
     unless modified by this Side Letter.

                                       3

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4.3. This Side Letter is made in 2 (two) languages, Indonesia and English, and 3
     (three) originals both approved and signed by duly authorized
     representatives of the parties hereto.

IN WITNESS WHEREOF THE PARTIES hereto agree to sign this Side Letter on the day
and year written above.

Signed by:
For and on behalf of:

PT. TELEKOMUNIKASI INDONESIA, TBK    PIRELLI-SIEMENS CONSORTIUM

                                              [STAMPED]

/s/ Kristiono                        /s/ Stefano Poli
-------------                        ----------------
KRISTIONO                            STEFANO POLI
President Director                   Chief Executive Officer PT. PIRELLI
                                     CABLES INDONESIA

                                     /s/ Rolf Unterberger
                                     --------------------
                                     ROLF UNTERBERGER
                                     Director PT. SIEMENS INDONESIA

                                     /s/ Herbert Fettig
                                     ------------------
                                     HERBERT FETTIG
                                     Deputy Director PT. SIEMENS
                                     INDONESIA

                                       4<PAGE>

                                                                    Exhibit 4.30

                                AMENDMENT NO. 1
                            TO PARTNERSHIP AGREEMENT
              NO.K.TEL.249/HK.810/UTA-00/01 DATED 5 DECEMBER 2001
                    FOR DEVELOPMENT CONTRACT PSTN EXCELLENCE
                           REGIONAL JUNCTION DIVRE-V

                        NO.K.TEL.177/HK.820/UTA-00/2002

                              DATED SEPTEMBER 27, 2002
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                                AMENDMENT No. 1
                            TO PARTNERSHIP AGREEMENT
              NO.K.TEL.249/HK.810/UTA-00/01 DATED 5 DECEMBER 2001
                    FOR DEVELOPMENT CONTRACT PSTN EXCELLENCE
                           REGIONAL JUNCTION DIVRE-V

                     NUMBER: K.TEL. 177 /HK.820/UTA-00/2002

On this day, Friday dated Twenty Seven month September of year 2002, at the
Corporate Office of PT. (Persero) Telekomunikasi Indonesia, Tbk. Jalan Japati
No. 1, Bandung, between the parties:

I.       PT (PERSERO) TELEKOMUNIKASI INDONESIA, TBK., having its corporate
         office at Jalan Japati No.1 Bandung, in this legal act duly represented
         by KRISTIONO, President Director, hereinafter in this Amendment
         referred to as TELKOM;

         And

II.      CONSORTIUM SUMITOMO CORP. -NEC CORP. - PT.NASIO KARYA PRATAMA -
         PT.COMMUNICATION CABLE SYSTEMS INDONESIA, a consortium organized and
         established under the Notary Public Deed No.36 dated October 19, 2001,
         drawn up in front of Notary Debra T.C. Schram, SH., as amended by
         Notary Public Deed No.12 dated February 18, 2002 with the same Notary
         Public, having its office at PT.SUMITOMO INDONESIA, Gedung SUMMITMAS I,
         12th Floor, Jl. Jendral Sudirman Kav.61-62 Jakarta-10190, in this legal
         act duly represented by:

         KAZUO NAKAJIMA, Assistance to General Manager, Information &
         Telecommunication Project Divisions, Sumitomo Corporation, having its
         registered office at 1-8-II, Harumi, Chuo-ku, Tokyo, 104-8610, Japan,
         as a Leader of Consortium;

                                        1

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         TOSHIYA MATSUKI, Department Manager 2nd Sales Department, 1st
         International System Division, NEC Networks, NEC Corporation, having
         its registered office at 7-1, Shiba 5-chome, Minato-ku, Tokyo 108-8001,
         Japan, as a Member of Consortium;

         ITA YULIATI DJOEMHANA, President Director of PT.Nasio Karya Pratama,
         having its registered office at Jl.Gunawarman No.53 Jakarta-12180,
         Indonesia, as a Member of Consortium;

         PETER DJATMIKO, President Director of PT.Communication Cable Systems
         Indonesia, having its registered office at Wisma Millenia 4th Floor,
         Jl. MT Haryono Kav.16 Jakarta - 12810, Indonesia, as a Member of
         Consortium.

         Hereinafter collectively the Parties belonging to this Consortium in
         this Amendment referred to as PARTNER.

         (severally SUMITOMO CORPORATION referred to as SUMITOMO, NEC
         CORPORATION referred to as NEC, PT. NASIO KARYA PRATAMA referred to as
         NASIO and PT. COMMUNICATION CABLE SYSTEMS INDONESIA referred to as
         CCSI).

By first taking into consideration the following matters:

a.       Whereas TELKOM and SUMITOMO-NEC-NASIO Consortium have signed the
         Partnership Agreement No. K.TEL.249/HK810/UTA-00/2001 dated December 5,
         2001 (hereinafter referred to as the "Main Agreement");

b.       Whereas SUMITOMO - NEC - NASIO Consortium intended to add a new
         consortium member through its letter No.L.,SNN.0001 dated February 27,
         2002 which was then approved by TELKOM through its letter

                                        2

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         No.TEL.130/LG000/TEK-30/2002 dated June 20,2002;

c.       Whereas the additional member of consortium as specified in point b.
         above was meant to speed-up delivery and to maximize utilization of
         local material, as discussed in the meeting held on May 8, 2002 between
         TELKOM and PARTNER which resulted in agreement to change the related
         material portion price (The Minute of meeting of negotiation as
         attached);

d.       Whereas TELKOM through its letter No.C.TEL.16/LG000/TEK-30/2001 dated
         February 7, 2002, has assigned the execution of the works under the
         Partnership Agreement from Regional-V East Java Division to Development
         Division.

After having taken into consideration the above matters, TELKOM and PARTNER have
agreed to amend the provisions stipulated in the Main Agreement by the following
terms and conditions:

ARTICLE 1: MEMBER OF CONSORTIUM

Referring to the Preamble of Main Agreement, TELKOM and PARTNER agreed to add a
new Consortium member, namely:

Name of Company: PT. Communication Cable Systems Indonesia.
Address: Wisma Millenia 4th Floor,
Jl.MT.Haryono Kav.16 Jakarta-12810.

ARTICLE 2: THE CHANGING OF MATERIAL PRICE COMPOSITION

TELKOM and PARTNER agreed to change the composition of material price
specifically for OSP material type which consists of Fibre Optic Cable and
Accessories as specified in the Attachment 10 of Main Agreement from Japanese
Yen portion to Indonesian Rupiah portion.

                                        3

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ARTICLE 3: ASSIGNMENT OF AGREEMENT

In the execution of the Partnership Agreement, TELKOM assigned its Development
Division (DIVPEM) to be in-charge of the following tasks as specified in the
Main Agreement: Acceptance Test (Article 8), Licensing (Article 9), Maintenance
& Guarantee (Article 11) Implementation Supervision (Article 12), Field
Supervision (Article 13), Documentation (Article 16), Quality Assurance (Article
22), Partner Assurance (Article 23), Transfer of Title and Risk (Article 26),
Training (Article 28), System Support (Article 29), Expatriates (Article 30),
Consultancy Forum (Article 31), Damages and Losses (Article 36), Penalty
(Article 37 except paragraph (2)), Force Majeure (Article 38) and Default
(Article 39).

ARTICLE 4: REPORT

TELKOM and PARTNER agreed that the submission of Report as specified in Article
15 of Main Agreement from DIVRE-V to DIVPEM with copy to DIVRE-V.

ARTICLE 5: PAYMENT

TELKOM and PARTNER agreed to add a new account number to make a payment of
Agreement Price as specified in Article 18 paragraph (4), as follows:

Account-III, in favour of PT. Communication Cable Systems Indonesia:
Account No.: 0353082393
Bank Name : Bank BCA KCU Sudirman
Address : Wisma BCA I, Jl.Jend.Sudirman
          Kav.22-23 Jakarta-12920

In conformity with the payment amount which becomes CCSI's right with transfer
fee to be charged to CCSI directly deducted from such payment amount.

                                        4

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ARTICLE: 6 SYSTEM SUPPORT

TELKOM and PARTNER agreed to amend of Article 29 paragraph (1) of main
Agreement, as follows:

"PARTNER shall support TELKOM staff in the operation of the completed system
under the Contract described in detail in Attachment-9 for the period of fifteen
(15) months as from the issuance of first PAC for the first RING"

ARTICLE 7: CORRESPONDENSE

TELKOM and PATRNER agreed to amend the address of correspondence for TELKOM and
PARTNER as specified in Article 32 paragraph (1) of the Main Agreement, as
follows:

TELKOM:

DIVISI PEMBANGUNAN
Attn.GM AREA-V
Address: Jl.Ketintang No.156
         Surabaya-60231
No.Tlp/Fax: 031-828 6800 / 031-829 2020
E-mail : spyono@telkom.co.id

CC:

1.       DIVISI REGIONAL-V JATIM
         Attn.SM.BANGNIS
         Address: Jl.Ketintang No.156
                  Surabaya-60231
         No.Tlp/Fax: 031-8286500/031-8286580
         E-mail    : angger@telkom.co.id

2.       KADIVPEM
         Address: Jl.Japati No.1 5th Floor
                  Bandung-40133
         No-Tlp/Fax: 022-4525425/022-7206530
         E-mail    : tri d@telkom.co.id

                                        5

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PARTNER:

PT.SUMITOMO INDONESIA
Address: Gedung SUMMITMAS I,12th Fl.
         Jl.Jend.Sudirman Kav.61-62
         Jakarta-12190
No.Tlp/Fax: 021-525 1550/021-520 2305
E-mail: mitsuyoshi.oshima@sumitomocorp.co.jp
        takeshi.oko@sumitomocorp.co.jp

CC:

General Project Manager
Address: Perumahan Kris Kencana
         Jl.Raya Kencana Sari Blok-H No.9
         Surabaya

No.Tlp/Fax: 031-567 0429/031-567 0429
E-mail: nasio5@indosat.net.id

ARTICLE 8: EFFECTIVE DATE OF AMENDMENT

This Amendment becomes immediately effective after duly signed by TELKOM and
PARTNER.

ARTICLE 9: APPENDIXES

The following Appendices of this Amendment constitute an inseparable part of the
Main Agreement and this Amendment:

Appendix 1  : Amendment-I of Consortium Agreement

Appendix 2  : TELKOM's Stipulation Letter on the Amendmen-I

Appendix 3  : Minute of Meeting of Negotiation

Appendix 4  : Correspondence

Appendix 5  : Company Profile of CCSI

                                        6

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If there is a conflict between the terms specified in the main body of this
Amendment and the Appendices, the terms specified in the main body of this
Amendment shall govern.

ARTICLE 10: OTHER PROVISIONS

10.1.    All terms and conditions as stipulated in the Agreement, except as
         expressly amended in accordance with the provisions of this Amendment,
         shall remain valid in full force.

10.2.    This amendment is drawn-up-with two (2) originals, in the Indonesian
         Language and English Language, each of them having the same meaning,
         and having the same legal power after being signed by both parties.

In witness whereof the Parties, hereto set their hand this day and year above
written.

                                        7

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                        Signed by, for and on behalf of:

PT. TELEKOMUNIKASI INDONESIA, TBK.   CONSORTIUM SUMITOMO-NEC NASIO-CCSI,
                                       SUMITOMO CORPORATION (LEADER)
/s/ Kritstiono
-------------------                  [STAMPED]
KRISTIONO
DIREKTUR UTAMA                       /s/ Kazuo Nakajima
                                     -----------------------
                                     KAZUO NAKAJIMA
                                     ASSISTANT TO GENERAL MANAGER, INFORMATION &
                                         TELECOMMUNICATION PROJECT DIVISION

                                     NEC CORPORATION (MEMBER)

                                     /s/ Toshiya Matsuki
                                     ------------------------
                                     TOSHIYA MATSUKI
                                     DEPT.MANAGER 2ND SALES DEPT., 1ST
                                               INTERNATIONAL SYSTEM DIVISION,
                                               NEC NETWORKS

                                     PT.NASIO KARYA PRATAMA (MEMBER)

                                     /s/ Ita Yuliati Djoemhana
                                     ----------------------------------
                                     ITA YULIATI DJOEMHANA
                                       DIREKTUR UTAMA

                                     PT. COMMUNICATION CABLE SYSTEMS
                                           INDONESIA (MEMBER)

                                     /s/ Peter Djatmiko
                                     --------------------------------
                                     PETER DJATMIKO
                                     Direktur Utama

                                       8

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