Acision Expands Advanced Messaging Services at MTS With the Deployment of Message Plus

Rich Messaging Services Enable MTS to Differentiate its Customer Offering

MOBILE WORLD CONGRESS, BARCELONA, Spain, February 15 - Acision, a world leader in mobile data, today announces it has extended
its relationship with MTS, the largest telecom operator in Russia, by
deploying advanced messaging services including Acision Message Plus and
Acision Message Store, key components of Acision's Open Data Services
Architecture. By implementing these solutions, MTS's subscribers will have
access to a full range of personalised services across SMS all via one
messaging platform. In addition, the service creation environment of
Acision's Open Data Services Architecture enables MTS to continually
co-design and deploy innovative services, providing differentiation in a
highly competitive market.

Acision's Open Data Services Architecture empowers the operator to
provide a high quality messaging experience, enabling more control,
flexibility and productivity to users. Subscribers can enjoy innovative
services such as message auto-reply, forwarding and a web-based messaging
inbox where messages can be read and archived. This allows users to actively
control the content they receive, an effective tool to combat issues such as
SMS bullying or inappropriate messaging.

Pavel Roytberg, MTS's products' director, said: "We always strive to
offer our customers the widest range of innovative services. By working with
Acision on our messaging requirements we can ensure our customers have access
to the very latest messaging applications while receiving a fulfilling
experience. Acision's advanced messaging solution allows us to take messaging
to the next level, enabling subscribers to set up 'desktop-like' services,
such as auto-reply and web-based archiving. This clearly differentiates MTS
from our competitors and we look forward to continuing the longevity of this
trusted relationship with Acision."

"We are delighted to extend our relationship with MTS by providing some
of the most advanced messaging services in the market. Through providing
additional messaging functionality, we can help MTS distinguish its customer
offering and increase loyalty by giving subscribers more control and choice
over the mobile services they use," said Rory Buckley, Chief Executive at
Acision.

MTS is the largest mobile operator in Russia with 69.3 million
subscribers and one of the top 10 mobile operators in the world with
97.81million subscribers across the MTS Group (according to Informa Telecoms
& Media, based on proportionate subscribers). As part of its advanced
messaging solution, Acision will also upgrade and extend its Acision SMSC,
Acision MMSC as well as deploy Acision's mobile data charging solution across
MTS' networks in Russia.

NOTES TO EDITORS

About Acision

As a world leader in mobile data, Acision aims to power innovation and
profitable growth in mobile data services. As the pioneer of mobile
messaging, Acision's real time mobile data solutions support its customers
worldwide to drive new revenues with innovative services while controlling,
optimising and monetising data traffic. For more information, visit Acision
at www.acision.com

About MTS

Mobile TeleSystems OJSC (MTS) is the largest mobile phone operator in
Russia and the CIS. MTS services over 97.81 million subscribers (as of
December 31, 2009). MTS provides mobile communications in Russia, Ukraine,
Uzbekistan, Turkmenistan, Armenia and Belarus, the territory with a total
population of more than 230 million. MTS has been listed on the New York
Stock Exchange since July 2000 and trades under the ticker MBT.
www.mts.ru

Press Contacts: Annette Leach, Hotwire PR, Tel: +44(0)207-608-2500, Email: acision at hotwirepr.com; Lauren McGregor, Hotwire, Tel: +44(0)207-608-4677, Email: lauren.mcgregor at hotwirepr.com