June 26, 2012, Yerevan, Armenia – VivaCell-MTS, a subsidiary of “Mobile TeleSystems” OJSC, is glad to inform that VivaCell-MTS prepaid subscribers can access Internet from their mobile without any concern about the used traffic. One just has to download the Opera Mini browser from the mini.opera.com site, activate the “Opera Mini Unlimited" package by dialing *776#, and only for AMD 1000 one will get: • Unlimited browsing with Opera Mini (does not include video streaming, file download, peer-to-peer, FTP, instant messaging programs) • 15 MB additional traffic for the abovementioned exceptions The validity period of “Opera Mini Unlimited" package is 30 days, after which you can re-activate it. MBs not used during this period are cancelled. To check the remaining MBs of the current package, dial *766#. To remind, Opera Mini is the fastest browser for mobile devices, which provides the most comfortable surfing experience. Notes: • «Opera Mini Unlimited" package can be activated in case of using the following versions of Opera Mini browser: 4.X, 5.X, 6.X and 7.X. • Subscribers of “18 +”, “YES" and "Business Control" tariff plans cannot activate the “Opera Mini Unlimited" package. • “Opera Mini Unlimited" package cannot be used for visiting Premium websites. • The service is not available in roaming. • After the card’s validity period expiration the unused MBs are deleted. For more information one can visit www.vivacell.am, contact 111 free of charge hotline, chat with us through “111 Online”, or approach one of our service centers across Armenia. Be ready for more! VivaCell-MTS... More than operator! VivaCell-MTS (K-Telecom CJSC) is Armenia’s leading mobile operator, having the widest 2G/3.75G/4G network reach and spreading a wide range of Voice and Data services all across Armenia. Having the best of the Armenian people interest at heart since its launch on 1st July 2005 and in a short period of time VivaCell-MTS has managed to build a nationwide network and a considerable customer base. VivaCell-MTS drives innovation and aims at always being at the forefront of any development serving the Armenian mobile communications market. For more information, visit www.vivacell.am * * * Mobile TeleSystems OJSC ("MTS") is the leading telecommunications group in Russia, Eastern Europe and Central Asia, offering mobile and fixed voice, broadband, pay TV as well as content and entertainment services in one of the world's fastest growing regions. Including its subsidiaries, the Group services over 100 million mobile subscribers. The Group has been awarded GSM licenses in Russia, Ukraine, Uzbekistan, Armenia and Belarus, a region that boasts 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 the MTS Group can be found at www.mtsgsm.com.

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