Additional Agreement No. 5 to Contract on connection of telecommunication networks as amended by Agreement No.1097-05 dated December 27, 2005, between OAO Rostelecom and OJSC VolgaTelecom

Exhibit 4.20.5

Additional Agreement No. 5

to Contract on connection of telecommunication networks as amended by Agreement No.1097-05 dated December 27, 2005, between OAO Rostelecom and OJSC VolgaTelecom

Moscow Dated July 24, 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 the Charter, on the one part, and VolgaTelecom, Open Joint-Stock Company, hereinafter referred to as the “Operator”, represented by OAO VolgaTelecom General Director Xxxxxx Valeryevich Omelchenko, authorized to act by the 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 to Appendix No. 9 to the Contract on Network Connection (hereinafter, “the Contract”), as follows:

1. Tables “Details of recipient of the xxxx (Subscriber)” and “Subscribers’ Numbers (Phone)”  are changed by the tables of the following wording:

Details of recipient of the xxxx (Subscriber)

Attribute name		Obligation degree		Acceptable values		Description
subscriber_id		Obligatory given as a parameter		Symbol line of 15 digits		The unique identifier of the Subscriber within the Operator’s company
legal_entity		All subscribers		0 - individual 1-legal entity		Feature of a legal entity
category		All subscribers		0- Budgetary organizations 1- Self-sustained organizations 2-population 3-Non-incorporated individual entrepreneur		Type of subscriber

Subscribers’ Numbers (Phone)

Attribute name		Obligation degree		Acceptable values		Description
phone_number		Obligatory given as a parameter		Line of 10 characters (figures only)		Full subscriber number
device		All subscribers		0-telephone 1-call office		Type of the subscriber gear
price_plan		All subscribers		0-office 1-population 2- Self-sustained organizations 3- Budgetary organizations		Tariff

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vat_free Diplomatic mission or their employees 0- default VAT rate
1- 0% VAT rate The sign of 0% VAT rate application to the realization of the services

2. This Agreement is an integral 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 original counterparts, one for each Party.

6. The Agreement becomes effective as of its signature and shall take effect as from the date immediately following the commencement of the Contract. This Additional Agreement shall remain in effect through April 01, 2006. If neither Party announces termination of this Agreement thirty (30) calendar days before its stated expiration, this Agreement shall be automatically extended for each subsequent period of three calendar months. The number of periods for which the effect hereof can be prolonged is not limited.

7. Details and Signatures of the Parties

OAO Rostelecom:		OJSC VolgaTelecom
General Director		General Director
OAO Rostelecom		OJSC VolgaTelecom
X.Xx. Yerokhin		X.X. Xxxxxxxxxx
Date                             2006		Date                             2006
Seal here		Seal here

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