Exhibit 4.20.4  Additional Agreement No. 4  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 OJSC VolgaTelecom General Director Sergey 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 the Contract on Network Connection (hereinafter, the Contract),
as follows:  1.Clause 1.12
of the Contract  to be deleted.  2.Clause1.13
of the Contract shall be marked as Clause 1.12. and shall be amended as
follows:  Traffic
Admission Servicescollectively
mean the Service of zone termination of call to the Associated Operators
network; the Service of zone termination of call to the Operators network; the
Service of zone initiation of call from the Operators network; the Service of
zone initiation of call from the Associated operators network in the course of
long-distance and international telecommunications provided by Rostelecom to
the Users.  3.In clause 6.5.2 of the
Contract, the term long distance shall be replaced by the term zone.  4.The words and local
termination of call to the Operators network shall be excluded from clause
4.9.  5.In clause 5.6. of the Contract the reference to clause 1.13. of the
Contract shall be substituted by reference on clause 1.12. of this Agreement.  6.In the text of all
Appendices to the Contract, the words Service of local termination of call
shall be excluded; the words long-distance termination of call and long-distance
initiations of call shall be replaced with the words zonal termination of
call and zonal initiation of call respectively; the words Call Transit
Service shall be replaced with the words Service of zone initiation of call
from the Associated Operators network.  7.Appendix No. 1 to the
contract shall be set forth as amended by Appendix No. 1 to this
Additional Agreement.  8.This Agreement is an
integral part of the Contract.  9.All terms used in this
Agreement have a meaning, fixed for them in the Contract.  10.All the rest, not indicated
in this Agreement, is subject to the provisions of the Contract.  11.The agreement is issued in
the Russian language in two original counterparts, one for  each Party.


12.This Agreement shall become
effective as of its date. The Parties recognize that the terms and conditions
of their Agreement shall apply to their relations arising as from the date of
the Contract on connection of telecommunication networks as amended by
Agreement No. 1097-05 dated December 27, 2005.  13.Details and Signatures of
the Parties  OAO
  Rostelecom:
  
  OJSC
  VolgaTelecomLegal
  address: 5, Delegatskaya st.,
  
  Legal
  address:Moscow,
  127091General
  Director
  
  General
  DirectorD.Ye. Yerokhin
  
  S.V. Omelchenko200
  
  200Seal
  here
  
  Seal
  here


Appendix No. 1
to Additional
Agreement No. 4 to the
Contract, as amended by
Agreement No.1097-05 dated
December 27, 2005, between OAO
Rostelecom and OJSC
VolgaTelecom).  Appendix No. 1
to Contract No.         
dt.  Rates (tariffs) for Estimation of the Cost of the
Services Rendered under Contract No.       
dt.  1.1.Traffic admission services rendered by
the  Operator:  No.
  
  Description of the service
  
  Billing rate,
  rouble/minABC
  =833
  
  ABC
  =834
  
  ABC
  835
  
  ABC
  =836
  
  ABC
  =841
  
  ABC
  =842
  
  ABC
  =848
  
  ABC
  =846
  
  ABC
  =831
  
  ABC
  =341
  
  ABC
  =353
  
  ABC
  =8451
  
  Zone call initiation1.1.
  
  From the Operators network including codes 80X
  200(100)
  
  0.891
  
  0.713
  
  0.713
  
  0.713
  
  0.713
  
  0.713
  
  0.713
  
  0.713
  
  0.713
  
  0.917
  
  0.917
  
  0.7131.2.
  
  from another operators network
  
  0.891
  
  0.713
  
  0.713
  
  0.713
  
  0.713
  
  0.713
  
  0.713
  
  0.713
  
  0.713
  
  0.917
  
  0.917
  
  0.7132
  
  Zone call initiation on codes 80X X1X2X3(where X1X2X3- code of the IS Operator interconnected to
  Rostelecoms ATES in Moscow)
  
  0.891
  
  0.713
  
  0.713
  
  0.713
  
  0.713
  
  0.713
  
  0.713
  
  0.713
  
  0.713
  
  0.917
  
  0.917
  
  0.7133
  
  Termination of calls to the Operators network
  
  0.891
  
  0.713
  
  0.713
  
  0.713
  
  0.713
  
  0.713
  
  0.713
  
  0.713
  
  0.713
  
  0.917
  
  0.917
  
  0.7134
  
  Termination of calls to the Associated Operators
  network
  
  0.891
  
  0.713
  
  0.713
  
  0.713
  
  0.713
  
  0.713
  
  0.713
  
  0.713
  
  0.713
  
  0.917
  
  0.917
  
  0.713


1.2.Connection
Services rendered by Rostelecom:  No.
  
  Description of the service
  
  Tariff, rouble/month for 1 TF
  channel1
  
  Maintenance
  of telecommunication facilities at the interconnection point
  
  206.7  Comment:  1) While billing the rendered services of zone
initiation of call from the Operators network, in addition to the billing rate
a compensation charge in the amount of 
0.54 roubles per minute is levied.  2) Tariffing of Traffic
admission services is performed per minute from the first second of connection.
The minute count is approximated to full minutes in the direction of the bigger
figure.  3) Service traffic (traffic for service
network) is not included into statistics on traffic admission and is not paid.  4) Billing rates
(tariffs) stated herein are tax-exempt, eventual taxes may be imposed on the
stated rates in accordance with current law.  OAO Rostelecom:
  
  Operator:General Director
  
  General DirectorOAO Rostelecom
  
  OJSC
  VolgaTelecomD.Ye. Yerokhin
  
  S.V.
  Omelchenko200
  
  200   .Seal
  here
  
  Seal
  here