Established last July, GTEL Mobile is a joint venture between Vietnam's GTEL Corporation and VimpelCom (NYSE: VIP), the leading provider of telecommunications services in Eastern Europe. Vietnam's telecommunications industry recently has been growing at 20 to 25 percent annually, with more than 50 million mobile service users.

GTEL Mobile also has deployed an attractive portfolio of Comverse HUB Value-Added Services for an enhanced customer experience, including SMS Center for text messaging, MMS Center for multimedia messaging, Messaging Gateway, Mobile Internet Gateway, Next-Generation Voicemail, Call Completion and Ringback Tone services.

"Comverse offered a truly convergent prepaid and postpaid platform, together with a suite of pre-integrated, value-added services, that gives us the needed functionality to establish a foothold in the competitive Vietnamese market," said Alexey Blyumin, CEO of GTEL Mobile.

"Comverse's strong presence in Vietnam and its track record of successful deployments of its billing solutions and value-added services with many other VimpelCom affiliates were key factors in our decision," he said.

Comverse ONE Billing & Active Customer Management is a truly converged Business Support System (BSS) solution that will enable GTEL Mobile to support any type of payment, such as prepaid, postpaid or hybrid, as well as create and deliver any service over its network efficiently. Comverse ONE provides better time to market with operational cost efficiencies due to its unified, highly efficient open architecture, based on a single software code built around a single data model and one product catalog.

Comverse's flagship billing solution also provides fully integrated customer management that allows operators to respond to the changing needs of customers; offer real-time marketing capabilities; provide numerous self-service options; and maintain a single-view of the customer, regardless of whether the interaction is via phone, email, or live Web chat.