T-Mobile UK Selects Telcordia Global Dialing Data Solution

T-Mobile UK is the latest Tier 1 service provider to select the
Telcordia (www.telcordia.com) Global Dialing Data solution. With more
cell phones than people, the United Kingdom is one of the world´s most
competitive wireless markets. Telcordia Global Dialing Data gives
T-Mobile an unprecedented level of control and visibility into the
network to help T-Mobile UK improve profitability and competitive
positioning.

With more than 800,000 dial codes in more than 230 markets,
Telcordia Global Dialing Data provides the most comprehensive,
accurate and authoritative dial code data in the world - a major
reason why more than 20 fixed and mobile operators worldwide have
chosen the solution since it was introduced in 2005.

"With improved billing capabilities and potential fraud
eliminated, T-Mobile UK now has another way to make sure every call
counts thanks to the Telcordia Global Dialing Data solution," said
Stephen Ornadel, Head of Carrier Services. "With this solution,
T-Mobile UK will realize savings that can be used to improve services
for our 17 million customers."

Telcordia Global Dialing Data is a component of the Telcordia(R)
Service Interconnection Registry. It includes continuous updates as
dialing code and numbering plan changes occur as well as future
numbering plan change notifications and activity reports. Telcordia
Service Interconnection Registry enables accurate routing and rating
of voice, SMS, and multimedia services over traditional Public
Switched Telephone Network (PSTN) and IP.

"The Telcordia Global Dialing Data solution is another example of
how Telcordia´s innovation, experience and reach are helping service
providers reduce costs and improve their competitive positions," said
Richard Jacowleff, President, Interconnection Solutions, Telcordia.
"The fact that T-Mobile UK and more than 20 other service providers
worldwide now use Global Dialing Data highlights the need for this
type of solution in today´s competitive telecom marketplace."

About Telcordia

Telcordia Technologies, Inc. is a leading global provider of
telecommunications network software and services for IP, wireline,
wireless, and cable. As the industry continuously evolves, Telcordia
has the experience and reach to deliver the critical elements of
success to help communication providers worldwide deploy innovative
and profitable new services via any network or device while helping
carriers aggressively reduce costs and grow revenues. Telcordia is
headquartered in Piscataway, N.J., with offices throughout North
America, Europe, Asia, Central and Latin America. (www.telcordia.com)

About T-Mobile UK

T-Mobile is one of the world´s largest mobile operators with more
than 112 million customers worldwide and in the UK it is the network
of choice for approaching 17 million customers, making it one of the
largest networks.

T-Mobile has a range of innovative products and services such as
Flext, a unique tariff with flexible pricing; U-Fix, a tariff that
combines pay-as-you-go and a monthly contract and web´n´walk, which
enables customers to surf websites on the move. T-Mobile´s network
coverage is among the best in the UK (over 99% of the UK population)
with one of the lowest dropped call rates. It offers the largest
worldwide Wi-Fi network, with over 1,000 HotSpots in business-friendly
locations in the UK and 21,000 worldwide, and offers the fastest HSDPA
network across the UK with speeds of up to 1.8mb per second.

For more information about T-Mobile UK, please visit
www.t-mobile.co.uk