Document:

Exhibit 4.28.1

Additional
Agreement No. 1

to
Agreement between OAO Rostelecom and OAO Uralsvyazinform  No. 752-05-23 dated January 01,
2006

	
           Moscow

  	
   

  	
  January 01, 2006

  

 

Rostelecom, Open Joint-Stock Company for Long-Distance and International
Telecommunications, hereinafter, “Rostelecom”, represented by OAO Rostelecom
General Director Dmitry Yevgenievich Yerokhin, authorized to act by Charter, on
the one part, and “Uralsvyazinform”, an Open Joint-Stock Company, hereinafter
referred to as the “Operator”, represented by General Director Anatoly
Yakovlevich Ufimkin, authorized to act by Charter, on the other part
hereinafter collectively referred to as the “Parties”, and severally, as “Party”,
have entered into this Additional Agreement (hereinafter, “the Agreement”) on
the incorporation of the below-listed amendments in the Contract on Network
Connection (hereinafter, “the Contract”), as follows:

1.                             Clause
1.6. of the Contract shall read as follows:

«1.6.
“Users” shall mean persons including subscribers who orders and/or uses
telecommunication services through the Operator, or through the
telecommunications operator whose telecommunication network is connected to the
Operator’s network at the local or zone level, and who is not the Associated
Operator, provided that settlements with the mentioned persons for
telecommunication services rendered by Rostelecom shall be made by the Operator
pursuant terms and conditions of this Contract. The list of telecommunications
operators whose telecommunication network is connected to the Operator’s
network at the local or zone level, who is not the Associated Operator,
settlements with whom for telecommunication services rendered by Rostelecom
shall be made by the Operator pursuant terms and conditions of this Contract,
will be provided in a separate Additional Agreement which shall be entered into
by the Parties after or concurrently with this Contract’s coming into force”».

2.                             Clause
1.4. of the Contract shall be amended as follows:

«1.4.
“Accrued income” means payments to the Operator by the Users for the Services
rendered in the corresponding month».

3.                             Clause
1.7. of the Contract shall be amended as follows:

«1.7. “Revenue earned” means  the income actually received by the Operator
from the Users in the corresponding month on account of payment for the
Telecommunication Services».

4.                             Clause
1.8. of the Contract shall be amended as follows:

« 1.8. “Billing period” means a calendar month
following the Accounting period».

5.                             Article 1
of the Contract shall be added by Paragraph 1.13. as follows:

«1.13. “Billing period”
means a calendar month during which Telecommunication Services were rendered to
the Users».

6.                             Paragraph
3.3.10 of the Contract shall be added by the following provision: “Make second
copies of invoices”.

7.                             In
Paragraph 3.3.11 of the Contract, the words “second copies of invoices” shall
be inserted before the words “billing data”.

8.                             In
Paragraph 3.3.4 the words “within 10 days following the invoice” shall be
substituted by the words “within 15 days following the invoice”.

9.                             In
Paragraph 4.1.2. of the Contract, the sentence “The amount of payment, the
settlement procedure between the Parties for the Services rendered by the
Operator to Rostelecom, shall be provided for by Appendix 2 to the Contract”
shall be substituted by the sentence “The amount of payment, the settlement
procedure between the Parties for the Services rendered by the Operator to
Rostelecom, shall be provided for by Appendix 7 to the Contract”.

10.                       Appendix 3 shall be amended in version 2:

11.                       Appendix 4 shall be amended in version 2:

12.                       Appendix 5 shall be amended in version 2:

 

13.                       Appendix 7 of the Agreement shall be amended as follows:

Appendix No. 7

to Agreement

Dated 01 January, 2006

PARTIES MUTUAL SETTLEMENT
PROCEDURE

1.                   The monetary
obligations of the Operator to Rostelecom (para. 4.1.1 of the Agreement).

1.1.           Within the term
before the 25th day of
the Billing period the Operator must transfer to Rostelecom one hundred per
cent (100%) of the Accrued income for the month preceding the Billing period
for the Telecommunication Services rendered during all periods preceding the
Billing period, in accordance with the Operator’s Report.

1.2.           Irrespective of
any provision of para. 1.1 of this Appendix 7 contradicting the understated,
before the 25th day of the Billing period the Operator must transfer to
Rostelecom, irrespective of the amount of payment received in the month
preceding the Billing period, no less than the Minimal payment in the amount of
34 % of the Accrued income for the Services rendered during the month preceding
the Billing period (para. 4.1.1 of the Agreement).

1.3.           Rostelecom
presents to the Operator the invoice for the payment of the Revenue earned, for
the amount determined with the consideration of para. and 1.2. hereof, before
the 20th day of the Billing period.

2.                   The monetary
obligations of Rostelecom to the Operator (para. 4.1.2. of the Agreement).

2.1.           Rostelecom is
obliged to pay to the Operator the consideration for the services rendered by
the Operator to Rostelecom in accordance with para. 2.2 and the
remuneration for the fulfillment by the Operator of the commission specified in
para. 2.1. of Section 2 of this Agreement, within the terms and in
the amount stated below. The total sum of the monetary obligations of
Rostelecom for the services rendered to Rostelecom by the Operator in
accordance with para. 2.2 and the remuneration for the commission
performed by the Operator, specified in para. 2.1. of Section 2 of
the Agreement, in every corresponding period is calculated on the basis of the
Acceptance Acts signed by the Parties for the corresponding periods.

2.2.           Within the term
before the 25th day of the Billing period Rostelecom is obliged to transfer to
the Operator the payment in the amount Y, which equals the sum of the payments
not transferred by Rostelecom by the above indicated date of payment for the
services under the Agreement rendered Rostelecom by the Operator during all the
periods preceding the corresponding Billing period, the cost of which has been
estimated in accordance with Appendix 2 to the Agreement. At that, the maximum
amount of payment Y, due to transfer in every Billing period equals M, the
value calculated for every Billing period by the following formula:

M
= Areceived — Amin. where

M
— is the maximal value of payment Y due to payment to the Operator by
Rostelecom in the corresponding Billing period.

A
received — is the
Revenue earned in the month preceding the Billing period, in accordance with
the Operator’s Report, for the Telecommunication Services rendered by
Rostelecom to the Users during all periods preceding the Billing period.

A min. — the amount of the Minimal payment, in
accordance with para. 1.2. hereof.

The
calculated payment Y is included into the cost of the services rendered by the
Operator to Rostelecom under this Agreement for all periods of its validity, in
the part in which these services were not paid for by the moment of the
calculation of the payment. The Parties agree that in the first place the
payments account for the services rendered during the earlier periods.

2.3.           Rostelecom
transfers to the Operator the payments, in accordance with para. 2.2.
hereof, until the amount of all payments transferred by Rostelecom in
accordance with this para. 2 equals the total cost of the services
rendered by the Operator to Rostelecom under this Agreement.

 

2.4.           The Operator
presents to Rostelecom the invoices for the payments specified in
para. 2.2. hereof, for the sums calculated in accordance with the
mentioned paragraph, before the  20th day
of the month in which the corresponding payment is due to be performed.

3.                   With the purpose
of the termination (full or partial) its obligations indicated in paras 1 and 2
of this Appendix  and the termination of
the obligations of Rostelecom to the Operator under the Contract on network
connection                      
in the version of                      
(“Contract on Connection”), the Parties to have monthly setting off the
counter-claims by signing the Acts of offsetting counter-claims on the days
when such obligations of the Parties shall be fulfilled under this Agreement
and the Contract on Connection.

14.                       Appendix
8 shall be amended in version 2:

Add Clause 8 to Appendix 9 in the following version:

«8. Provision of information
regarding users’ accounts receivable in order to create a reserve on doubtful
debts for taxation purposes.»

The Operator shall on a monthly basis, by the 15th day of the month following the month of the
end of the quarter, provide Rostelecom with the electronic report on the
indebtedness for the Services of Rostelecom as of the last date of the quarter,
by form 9 (in Excel).

15.                       This
Agreement is an inseparable part of the Contract.

16.                       All
terms used in this Agreement have a meaning, fixed for them in the Contract.

17.                       All
the rest, not indicated in this Agreement, is subject to the provisions of the
Contract.

18.                       The
agreement is issued in the Russian language in two copies, one for  each Party.

19.                       This
Agreement shall come into force from the date hereof. The Parties hereby
establish that terms and conditions of the Agreement entered into thereby shall
apply to their relations arisen from the date of the Contract on
Telecommunications Network Connection dated January 01, 2006.

20.                       Details
and Signatures of the Parties

	
  OAO Rostelecom:

  	
   

  	
  OAO Uralsvyazinform:

  
	
   

  	
   

  	
   

  
	
  Legal address: 127091, Moscow,

  	
   

  	
  Legal address: 620014

  
	
  Delegatskaya st., 5

  	
   

  	
  Yekaterinburg, Moskovskaya
  st., 11

  
	
   

  	
   

  	
   

  
	
  General Director

  	
   

  	
  General Director

  
	
   

  	
   

  	
   

  
	
   

  	
   

  	
   

  
	
  /signed/ D.Ye. Yerokhin

  	
   

  	
  /signed/ A. Ya. Ufimkin

  
	
   

  	
   

  	
   

  
	
  January 01, 2006

  	
   

  	
  January 01, 2006

  
	
   

  	
   

  	
   

  
	
  Seal here

  	
   

  	
  Seal hereExhibit 4.28.2

Additional
Agreement No. 2

to
Agreement between OAO Rostelecom and OAO Uralsvyazinform  No. 752-05-23 dated January 01,
2006

	
           Moscow

  	
   

  	
  January 01, 2006

  

 

Rostelecom, Open Joint-Stock Company for Long-Distance and International
Telecommunications, hereinafter, “Rostelecom”, represented by OAO Rostelecom
General Director Dmitry Yevgenievich Yerokhin, authorized to act by Charter, on
the one part, and “Uralsvyazinform”, an Open Joint-Stock Company, hereinafter
referred to as the “Operator”, represented by General Director Anatoly
Yakovlevich Ufimkin, authorized to act by Charter, on the other part
hereinafter collectively referred to as the “Parties”, and severally, as
“Party”, have entered into this Additional Agreement (hereinafter, “the
Agreement”) on the incorporation of the below-listed amendments in the
Agreement No. 752-05-23 entered into by the Parties on January 01,
2006 (hereinafter, “the Agreement”), as follows:

1.                             Under
Paragraph 1.6. of the Contract, the Operator shall provide Rostelecom with the
List of Telecommunication Operators whose telecommunication network is
connected to the Operator’s network at the local or zone level, who is not the
Associated Operator, settlements with whom for telecommunication services
rendered by Rostelecom shall be made by the Operator pursuant terms and
conditions of this Contract, will be provided in a separate Additional
Agreement which shall be entered into by the Parties after or concurrently with
this Contract’s coming into force:

List of operators

2.                             This
Agreement is an inseparable part of the Contract.

3.                             All
terms used in this Agreement have a meaning, fixed for them in the Contract.

4.                             All
the rest, not indicated in this Agreement, is subject to the provisions of the
Contract.

5.                             The
agreement is issued in the Russian language in two copies, one for  each Party.

6.                             This
Agreement shall come into force from the date hereof. The Parties hereby
establish that terms and conditions of the Agreement entered into thereby shall
apply to their relations arisen from the date of the Contract on
Telecommunications Network Connection dated January 01, 2006.

7.                             Details
and Signatures of the Parties

	
  OAO Rostelecom:

  	
   

  	
  OAO Uralsvyazinform:

  
	
   

  	
   

  	
   

  
	
  Legal address: 127091, Moscow,

  	
   

  	
  Legal address: 620014,

  
	
  Delegatskaya st., 5

  	
   

  	
  Yekaterinburg, Moskovskaya
  st., 11

  
	
   

  	
   

  	
   

  
	
  General Director

  	
   

  	
  General Director

  
	
   

  	
   

  	
   

  
	
   

  	
   

  	
   

  
	
  /signed/ D.Ye. Yerokhin

  	
   

  	
  /signed/ A. Ya. Ufimkin

  
	
   

  	
   

  	
   

  
	
  January 01, 2006

  	
   

  	
  January 01, 2006

  
	
   

  	
   

  	
   

  
	
  Seal here

  	
   

  	
  Seal here

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