Russia’s Largest Mobile Operator Deploys CallerXchange

Boston, MA. July 17, 2012— OnePIN, Inc., the leading provider of CallerXchange and Social Connections Services, today announced that Mobile TeleSystems OJSC (MTS) [NYSE: MBT], the largest mobile operator in Russia, has commercially launched CallerXchange to its base of over 70 million subscribers.

“MTS will lead Russia in becoming one of the world’s most connected mobile communities using the CallerXchange service.” said Feyzi Celik, President and CEO of OnePIN, Inc. “We look forward to seeing CallerXchange become a leading VAS service for MTS and throughout the Russian market.”

As the largest mobile operator in the Russia with 71.5 million mobile subscribers, MTS services more than 32% of Russian mobile market. In addition to the commercial roll-out in Russia, OnePIN is working with the MTS Group to extend distribution across their five subsidiaries and over 108 million subscribers.

The CallerXchange service enables subscribers to share their contact information with friends, family, and colleagues to stay connected. The service also ensures that contact information in subscribers’ phonebooks is kept up to date, allowing users to keep in touch with people in their social networks even if their information changes over time.

About Mobile TeleSystems (MTS)
Mobile TeleSystems OJSC (MTS) [NYSE: MBT] 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, as of December 31, 2010, the Group serviced over 108.1 million mobile subscribers in Russia, Ukraine, Uzbekistan, Turkmenistan, Armenia and Belarus. According to GSM Association Wireless Intelligence Information Service, MTS ranks as the 2nd largest operator in Europe by proportionate subscriptions at the end of 2010.

About OnePIN, Inc.
OnePIN is the world leader in social address book solutions for mobile operators. OnePIN’s technology transforms mobile phonebooks into social address books, improving customer retention while increasing voice and data revenue for mobile operators. OnePIN’s CallerXchange is a person-to-person contact exchange service that connects people and enhances social networks. With one click, using any mobile phone, CallerXchange enables subscribers to leverage their mobile social address books as the hub for their social networking. CallerXchange is currently being deployed to over 130 million mobile subscribers across all handset models within the world’s largest mobile operator groups. OnePIN is headquartered in Boston with offices around the globe.

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