ARMENIA’S LEADING MOBILE OPERATOR VIVACELL-MTS ANNOUNCES THE OUTGOING SMS TRAFFIC AND NUMBER OF OUTGOING CALLS ON ITS NETWORK ON DECEMBER 31, 2009 AND JANUARY 1, 2010

ArmInfo
2010-01-16 10:48:00

ArmInfo. VivaCell-MTS, a subsidiary of Mobile TeleSystems OJSC (NYSE:
MBT) announces that 1,865,976 SMS messages were sent on December 31,
the New Years Eve before midnight by VivaCell-MTS subscribers, with a
further 2,019,725 sent on January 1, 2010. At the same time, 7,657,761
outgoing calls were made by VivaCell-MTS subscribers on December 31,
2009 before midnight, and another 8,535,018 on January 1, 2010.

Armenia’s leading mobile operator VivaCell-MTS announced that in
total its subscribers had sent 3,885,701 short messages and had made
16,192,779 calls in the period from December 31, 2009 to January 2,
2010. Together with guest-roamers, over VivaCell-MTS network 3,900,972
SMS messages and 16,196,539 outgoing calls were made.

Compared to the same period of the previous year, the number of
outgoing calls increased by 19.91% (without guest roamers).

VivaCell-MTS (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-MTS has managed
to build a nationwide network and a considerable customer base.

VivaCell-MTS drives the development and offering of innovative mobile
communications products, services and features in the Armenian mobile
communications market.

Mobile TeleSystems OJSC ("MTS") is the largest mobile phone operator
in Russia and the CIS. Together with its subsidiaries, the Company
services over 97.16 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).