TORONTO, May 26 /PRNewswire/ --

- Redknee's Airtime Reseller Enables VivaCell-MTS to Provide Voucherless
Airtime Top-up for Prepaid Customers

Redknee (TSX: RKN), a leading provider of business-critical software and
solutions for communications service providers, today announces that
VivaCell-MTS (K-Telecom CJSC), the leading mobile operator in Armenia, has
launched Redknee's Airtime Reseller; a service that enables voucherless,
airtime top-up for its pre-paid customers. In high-growth markets such as
Armenia, voucherless airtime top-up enables operators to provide flexibility
to its subscribers and reduce voucher distribution costs.

The deployment of Redknee's Airtime Reseller will enable VivaCell-MTS to
provide its resellers with the ability to trade over the wireless network
with subscribers, providing sellable airtime that is purchased on the mobile
handset, eliminating the need for retail vouchers or physical top-up cards.
In a given scenario, a reseller purchases airtime minutes from the operator,
and is able to sell this airtime to the subscriber through a voucherless
mobile-to-mobile transaction.

"VivaCell-MTS is committed to providing Armenia with innovative mobile
services. Redknee's Airtime Reseller enables us to offer full flexibility to
our subscribers, who will be able to select the needed level of airtime
without being limited to any fixed denomination," says Ralph Yirikian,
General Director, VivaCell-MTS.

Through Redknee's Airtime Reseller solution, VivaCell-MTS' resellers can
provide subscribers with top-ups in various denominations, starting from 50
AMD to 90,000 AMD (approximately between 0.10 cents and 250 US$).

"In high-growth markets, operators need to capture market share quickly
to establish and maintain market dominance. The ability to offer flexible,
value-added services such as Redknee's Airtime Reseller will help operators
to appeal to new market segments, such as cost-sensitive and low-income
subscribers. Redknee is committed to innovative services and solutions that
enable mobile operators to rapidly respond to subscriber needs," said Lucas
Skoczkowski, CEO of Redknee.

For more information about Redknee, visit http://www.redknee.com.

About Redknee:

Redknee is a leading global provider of innovative communication software
products, solutions and services. Redknee's award-winning solutions enable
operators to monetize the lifetime value of each subscriber transaction while
personalizing the subscriber experience to meet mainstream, niche and
individual market segment requirements. Redknee's revenue generating
solutions provide advanced converged billing, rating, charging and policy for
voice, messaging and new generation data services to over 70 network
operators in over 50 countries. Established in 1999, Redknee Solutions Inc.
(TSX:RKN) is the parent of the wholly-owned operating subsidiary Redknee Inc.
and its various subsidiaries. References to Redknee refer to the combined
operations of those entities. For more information, visit
http://www.redknee.com/.

About VivaCell-MTS:

VivaCell-MTS (K-Telecom CJSC), a subsidiary of Mobile TeleSystems OJSC is
the leading Armenian mobile operator, providing a wide range of Voice and
Data services. Since its launch on 1st July 2005, in a short period of time
VivaCell-MTS has managed to build a nationwide network and a considerable
customer base. VivaCell-MTS drives the development and offering of innovative
mobile communications products, services and features in the Armenian mobile
communications market (For more information, visit http://www.vivacell.am).

Mobile TeleSystems OJSC ("MTS") is the largest mobile phone operator in
Russia and the CIS. Together with its subsidiaries, the Company services over
93.03 million subscribers. The regions of Russia, as well as Armenia,
Belarus, Turkmenistan, Ukraine, and Uzbekistan, in which MTS and its
associates and subsidiaries are licensed to provide GSM services, have 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).

For further information: Media Relations Contact: Ashleigh Young, Mi
liberty, +44(0)207-751-4444, ayoung@miliberty.com; Mark Yaphe, Vice
President, Product Management & Marketing, +1-905-625-2298,
mark.yaphe@redknee.com; Redknee Solutions: David Charron, Chief Financial
Officer, +1-905-625-2943, david.charron@redknee.com