MACH Signs Contract with VivaCell to Deliver Financial Clearing and IOT Check Solutions and Extends Contract for Data Clearing


Luxembourg, 27th November, 2007 - MACH, the leading global clearing and settlement partner for mobile based transactions, today announced that VivaCell, a subsidiary of Mobile TeleSystems OJSC (NYSE: MBT), has chosen MACH's Financial Clearing and IOT Check (Inter-Operator Tariff) solutions, whilst also extending their contract for MACH Data Clearing.

The announcement with VivaCell represents a further endorsement of MACH's technology within the East European mobile market.

VivaCell is the leading Armenian mobile operator in a country with a population of more than 3 million people, a growing telecommunications sector and increasing investment levels. VivaCell manages and operates a state-of-the-art mobile services network which transcends national borders, integrating Armenia with other mobile networks around the world.

VivaCell considers the diversification of its products and services, flexible tariff plans and proximity to its customers as essential factors in keeping and expanding further the high levels of success already achieved.

VivaCell has invested in MACH IOT Check, which proactively ensures that Inter-Operator Tariffs (IOTs) are correct when a user is roaming. MACH IOT Check ensures that VivaCell are proofed against incorrect tariffs, and more importantly that their subscribers don't incur excess roaming charges. This is vitally important as VivaCell today is working with 265 mobile operators, thus allowing its subscribers to roam in 145 countries.

VivaCell General Manager Ralph Yirikian commented, "MACH's solution helps VivaCell to improve further its billing system, which surely makes the usage of VivaCell services for our roaming subscribers more comfortable and clear."

VivaCell's adoption of MACH Finance and IOT Check from MACH's advanced suite of solutions runs alongside MACH Data Clearing, a contract that has been extended by VivaCell. MACH Data Clearing enables VivaCell and mobile operators all over the world to exchange billing and settlement information on which the whole business concept of international roaming is based. MACH Finance is the globally renowned, proven financial clearing & settlement solution subscribed to by many leading operators.

Terence Ledger, Chief Commercial Officer - MACH commented, "We are delighted to extend our partnership with VivaCell, by not only renewing our existing Data Clearing contract, but by also delivering MACH Finance and MACH IOT Check". Terence Ledger concludes: "Eastern Europe is a big market for MACH, and extending contracts and supplying our solutions to companies like VivaCell is a great endorsement of our work in that market."

About MACH

MACH is the leading global clearing and settlement partner for mobile based transactions, known in North America as MACH Cibernet. We help telecommunications companies and enterprises across the World to secure and develop existing and new revenue streams. We specialise in outsourced solutions within roaming clearing and billing, Interconnect and WLAN. In addition, we deliver mobile content services through the independently operating brand End2End as well as EDI under the PROGRATOR|gatetrade brand. Our global client base comprises the leading international telecommunication companies, including established national operators on five continents and new licensees worldwide. With approximately 700 employees and offices in 12 countries throughout the World, we combine global expertise and operations with local knowledge in each of our markets. For further information please visit www.mach.com

About VivaCell

VivaCell (K-Telecom CJSC) is the leading Armenian mobile operator, providing a wide range of Voice and Data services. Since its launch on 1st July 2005, in a short period of time VivaCell has managed to build a nationwide network and a considerable customer base. VivaCell drives the development and offering of innovative mobile communications products, services and features in the Armenian mobile communications market. For more information, visit www.vivacell.am

Mobile TeleSystems OJSC ("MTS") is the largest mobile phone operator in Russia and the CIS. Together with its subsidiaries, the Company services over 76 million subscribers. The regions of Russia, as well as Armenia, Belarus, Turkmenistan, Ukraine, and Uzbekistan, in which MTS and its associates and subsidiaries are licensed to provide GSM services, have a total population of more than 230 million. Since June 2000, MTS' Level 3 ADRs have been listed on the New York Stock Exchange (ticker symbol MBT). Additional information about MTS can be found at mts.ru

Enquiries

MACH:
Sophia BA¸diker
Global Marketing Project Manager
spa@mach.com
+45 4590 2024

VivaCell:
Tony E. Khoury
Communication Manager
tkhoury@vivacell.am
+374 94816618

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