Moscow, February 28, 2005. CenterTelecom affiliate Rossiyskaya Telecommunicatsionnaya Set (Russian Telecommunications Network), ROSNET trademark owner, has been certified to ISO 9001-2001.

The certificate confirms that RTS quality assurance system applies to providing local, long-distance and international telephony services, data transmission, communication channels leasing services as well as communication facilities and networks design, construction, installation, commissioning, maintenance and operating services.

"ISO 9001-2001 certificate granted to RTS testifies that the company has built an effective management system allowing to optimize the production expenses, raise the quality of management and manufacturing decisions and to ensure that the company's customer demands are met in full", - pointed out CenterTelecom Deputy General Director and Commercial Director Sergey Pridantsev.

For more information please contact:
The Director of Information Policy Department
Yana Lavrentyeva
+7 (095) 793-24-86
pr@centertelecom.ru

CenterTelecom is a leading fixed communications company providing the entire range of telecommunication services in the Central Federal District where over 20% of the population of Russia resides. CenterTelecom offers the full range of telecommunication services, including telephony service, the Internet, IP telephony, data communications, CATV, wired and VHF broadcasting. The company actively develops modern multiservice and SDH networks as well as new radio access systems. The Company trades on RTS (ESMO, ESMOP), Moscow Interbank Currency Exchange (CTEL, CTELP) and has ADR Level 1 common stock program (CRMUY).

Rossiyskaya Telecommunicatsionnaya Set (RTS) is a major telecommunication service provider in the RF. Under ROSNET trademark it provides a wide range of telecom services for the corporate customers, business centers, SMEs, country settlements as well as private users in Moscow, Moscow region as well as Central Federal District.