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 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 Appendix No. 9 to the
Contract on Network Connection (hereinafter, the Contract), as follows:  1.Tables
Details of recipient of the bill (Subscriber) and Subscribers Numbers
(Phone)  are changed by the tables of
the following wording:  Details of recipient of the bill (Subscriber)  Attribute
  name
  
  Obligation degree
  
  Acceptable
  values
  
  Descriptionsubscriber_id
  
  Obligatory given as a parameter
  
  Symbol line of 15 digits
  
  The unique identifier of the Subscriber
  within the Operators companylegal_entity
  
  All subscribers
  
  0 - individual 
  1-legal entity
  
  Feature of a legal entitycategory
  
  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
  
  Descriptionphone_number
  
  Obligatory given as a parameter
  
  Line of 10 characters (figures only)
  
  Full subscriber numberdevice
  
  All subscribers
  
  0-telephone 1-call office
  
  Type of the subscriber gearprice_plan
  
  All subscribers
  
  0-office 1-population
  2- Self-sustained organizations
  3- Budgetary organizations
  
  Tariff  1


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 VolgaTelecomGeneral Director
  
  General DirectorOAO Rostelecom
  
  OJSC VolgaTelecomD.Ye. Yerokhin
  
  S.V. OmelchenkoDate                            
  2006
  
  Date                            
  2006Seal here
  
  Seal here  2