MOSCOW, Russia, and ST. LOUIS, MO � January 20, 2004 � Open Joint Stock Company "Vimpel-Communications" ("VimpelCom") (NYSE: VIP), a leading provider of telecommunications services in Russia, and Amdocs (NYSE: DOX), the world's leading provider of billing and CRM for true, integrated customer management, today announced that VimpelCom has successfully completed a migration program of more than 2.5 million customers onto its Amdocs billing and customer care platform.

With this migration, VimpelCom is leveraging the Amdocs platform to provide centralized, convergent voice and data support for more than 10 million prepaid and postpaid customers across 52 regions of VimpelCom's nationwide operations. The Amdocs platform was initially rolled out in 2002 to support VimpelCom's Moscow-based customers. This most recent step in VimpelCom's national rollout strategy is expected to drive significant operational advantages and outstanding customer service.

"Amdocs is providing us with an extremely powerful and scaleable platform to enable maximum control over our growing number of operations, and support our established leadership in service quality and product innovation," said Jere Calmes, Vice President of Customer Operations and Product Management at VimpelCom. "The Amdocs platform also provides us with the carrier-grade capabilities and functionality critical for cost efficient and rapid expansion while enabling differentiating offerings to the local cellular marketplace."

The consolidation of its billing and customer care operations onto the Amdocs platform has enabled VimpelCom to improve its billing performance, eliminating roaming settlements between regions and allowing for faster bill delivery and an increase in revenue collection. It has also lowered operational costs through the consolidation of data centers, IT workforce, contact centers, development efforts and financial reports. Additionally, the Amdocs platform enables unified service and sales handling across markets, as well the ability to launch national marketing initiatives, products and services while supporting regional differences. The Amdocs platform also supports the Russian language for enhanced customer service and satisfaction.

"We are pleased to play an instrumental role in VimpelCom's rapid growth, helping it build on its established success in Moscow in order to effectively capitalize on the enormous potential in the Russian cellular marketplace," said Michael Matthews, Chief Marketing Officer, at Amdocs. "By consolidating its multiple regional operations onto the central Amdocs platform, VimpelCom is creating a stronger nationwide brand, identified with service excellence, reliability and product innovation."

About VimpelCom
VimpelCom is a leading provider of telecommunications services in Russia, operating under the "Bee Line" brand. The VimpelCom Group's license portfolio covers approximately 92% of Russia's population (134 million people), including the City of Moscow, the Moscow Region and the City of St. Petersburg. VimpelCom's ADSs are listed on the New York Stock Exchange ("NYSE") under the symbol "VIP".

About Amdocs
Amdocs combines innovative software products and services with deep business knowledge to enable the world's leading service companies to achieve true, integrated customer management. Our best-in-class billing and CRM products seamlessly link all customer-facing business processes - marketing, sales, ordering, delivery, fulfillment, billing, settlement, service, support, and analytics - resulting in stronger, more profitable customer relationships. Amdocs enables its customers to implement their business strategy with rapid return on investment, lower total cost of ownership and improved operational efficiencies.

Media Contacts:

Amdocs
Chris Loncto
Access Communications for Amdocs
Tel: +1-917-522-3524
E-Mail: cloncto@accesspr.com

Julia Mityukhina
R.I.M. Porter Novelli for Amdocs
Tel: +7-095-9715103
E-mail: mityuhina@rim-pn.ru

VimpelCom
Valery Goldin
Vice President of International Relations
Tel: 7-095-974-5888
Fax: 7-095-721-0017
E-Mail: vgoldin@vimpelcom.com