Armenia’s Leading Telecommunications Operator has the widest network of Service Centers in Armenia comprising 97 service centers, August 29, 2012, Yerevan, Armenia – VivaCell-MTS, a subsidiary of Mobile TeleSystems OJSC, announces the opening of the service center in Jermuk providing a wide scope of products and services to the local population. The new service center is one of VivaCell-MTS’ new generation state-of-the-art service centers providing high quality customer service, with an average capacity to serve 50 subscribers per hour. VivaCell-MTS General Manager Ralph Yirikian said: “VivaCell-MTS is committed to provide its huge loyal customer base with the best customer experience regardless of where they are. Taking this into consideration, we strive to provide our subscribers with better access to the wide range of our products and services. Our customer care personnel are always available and reachable across the country.” The new service center located in the center of Jermuk – at Shahumyan3/3 VivaCell-MTS’ subscribers will benefit from the operation of the newly-opened service center by receiving necessary customer support from qualified staff. The whole range of the company’s products and services is made available in the newly-opened modern service center including international roaming, post-paid and prepaid packages with respective tariff plans, invoice settling, different denomination scratch cards, number selection, data tariff plans together with 3G modems and Wi-Fi routers, a wide range of mobile phones and other accessories, corporate packages, detailed bills, and other services. To remind, on November 2010, for the first time in Armenia’s mobile communication sector, VivaCell-MTS received ISO 9001:2008 certification with regard to providing high quality products and services, as well as ISO 10002 in 2011 first time in CIS as well as customer care to its customers in a systematic and coherent manner. 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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