COMSTAR Turns to Bizanga Intelligent Message Processor Platform


SAN MATEO, California and MOSCOW, February 17 /PRNewswire/ --

- First Joint Deployment With Yandex Spamooborona Addresses Specific
Russian Market Requirements

SAN MATEO, California and MOSCOW, February 17 /PRNewswire/ --

Bizanga, the global company behind the most scalable and full-featured
email and message processing platform, today announced that COMSTAR-United
TeleSystems (COMSTAR-UTS OJSC, LSE: CMST), a major operator of integrated
telecommunications services in Russia and the CIS, has deployed the Bizanga
Intelligent Message Processor (IMP) platform to manage and secure their email
and messaging needs.

As the leading broadband Internet provider in Russia, COMSTAR-UTS was
facing increasing challenges to manage the email and messaging needs of its
massively growing customer base. With year-over-year growth exceeding 52%,
COMSTAR-UTS (trademark STREAM) broadband subscribers were being targeted by
spammers, resulting in disproportional undesirable traffic buildup. After
intensive tests, COMSTAR-UTS chose the Bizanga IMP platform for its ability
to address its scaling needs, its integration with Yandex Spamooboronoa, its
current Anti-Spam content filter, and its management and reporting
capabilities.

"Before we implemented the Bizanga IMP in our network we had to regularly
add more servers to handle the load," said Victor Belov, Director, service
platforms and networks of COMSTAR-UTS. "The incredibly quick implementation
has yielded a system that now allows us to easily scale to meet our
customer's demands. The combination with Yandex' leading Anti-Spam solution
protects our infrastructure and our customers."

With a specific focus on a more green, environment-friendly setup, the
reduction of the hardware footprint by more than 80% with the corresponding
decrease in administration overhead provided unarguable financial advantages
to COMSTAR-UTS. The detailed statistics and reports of the Bizanga IMP
further supplied COMSTAR-UTS with an unprecedented visibility of its email
and messaging activities, allowing for even better management of its internal
resources.

"With the fastest growing Internet population in Europe and one of the
largest nation in the world, Russian service providers face unique
challenges," said Jérôme Lecat, CEO of Bizanga. "As a global company with a
local focus we pride ourselves on delivering the solutions needed to address
these specific requirements with local partners."

About Bizanga

Bizanga is the global company that developed the most scalable and
full-featured E-mail message processing and security platform, the
Intelligent Message Processor(R) (IMP). The IMP can be deployed to protect an
E-mail infrastructure from blended threats including spam, viruses,
denial-of-service and harvest attacks. It can also be used to perform
parental control, compliance/encryption services or simply to manage
infrastructure migration or new service deployment. Designed especially for
service providers, the IMP is extremely easy to integrate with existing
infrastructure, including provisioning systems and message store. IMPs handle
E-mail for millions of mailboxes throughout North America, Europe and Asia
Pacific.

Bizanga sells direct to Internet service providers, cable operators,
fixed-line and mobile operators. The technology is also available on an OEM
basis to application software vendors. Bizanga is a member of the Messaging
Anti-Abuse Work Group (http://www.maawg.org). For more information about
Bizanga, visit the company's Web site at http://www.bizanga.com.

About Comstar UTS

JSC Comstar-United TeleSystems is the leading fixed-line
telecommunications company in Moscow, both in terms of revenues and
subscribers. Comstar UTS provides voice, data, Internet, pay-TV and other
value-added services to residential and corporate subscribers and operators,
using its extensive backbone network and exclusive last mile access to 97% of
Moscow households. In addition, the Company offers communications services in
five Russian regions and also in Armenia and Ukraine. As at the end of
3Q2008, Comstar has 3.6 million residential subscribers in Moscow and 793K
Internet broadband access residential subscribers (BBA), as well as 61K BBA
residential subscribers in Russia's regions and the CIS. Group of Companies
reported consolidated revenues of US$ 1,2258 million, with OIBDA margin of
41.8% for the 9 months of 2008. Comstar GDRs are listed under the symbol
"CMST" on the London Stock Exchange and Moscow Central Stock Exchange. For
more information please visit web-page: http://www.comstar-uts.ru

Some of the information in this press release may contain projections or
other forward-looking statements regarding future events or the future
financial performance of COMSTAR-UTS. You can identify forward looking
statements by terms such as "expect," "believe," "anticipate," "estimate,"
"intend," "will," "could," "may" or "might" the negative of such terms or
other similar expressions. We wish to caution you that these statements are
only predictions and that the actual events or results may differ materially.
COMSTAR-UTS does not intend to update these statements to reflect events and
circumstances occurring after the date hereof or to reflect the occurrence of
unanticipated events. Many factors could cause the actual results to differ
materially from those contained in our projections or forward-looking
statements, including, among others, general economic conditions, our
competitive environment, risks associated with operating in Russia, rapid
technological and market change in our industries, as well as many other
risks specifically related to COMSTAR-UTS and its operations.

Contacts:

    Bizanga,
    Marc Sheldon,
    +1-650-787-3254,
    Marc.Sheldon@Bizanga.com .

    Comstar,
    Ekaterina Nevskaya,
    +7-495-956-0000,
    pr@comstar-uts.ru .



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