RSB Ltd Expands its Partnership with Canada's TELUS to Provide Enhanced Global Roaming on the New BlackBerry® 8830 World Edition Smartphone


RSB Limited (RSB) - a WorldCell Company, a leading provider of turnkey technology solutions to wireless operators, and TELUS, a leading Canadian telecommunications company, announced today the implementation of expanded data capability, enabling TELUS to offer its clients international voice and data roaming on the new RIM BlackBerry 8830 World Edition smartphone. RSB has been providing TELUS clients with voice and SMS international roaming capabilities since 2005.

Silver Spring, MD; Vancouver, BC - July 12, 2007 -- RSB Limited (RSB) - a WorldCell Company, a leading provider of turnkey technology solutions to wireless operators, and TELUS, a leading Canadian telecommunications company, announced today the implementation of expanded data capability, enabling TELUS to offer its clients international voice and data roaming on the new RIM BlackBerry 8830 World Edition smartphone. RSB has been providing TELUS clients with voice and SMS international roaming capabilities since 2005.

"Thanks to RSB's Inter-standard Data Roaming (ISDR) platform we have been able to continue to enhance our clients' wireless experience when traveling internationally," said Chris Langdon, vice-president of Network Services at TELUS. "TELUS wireless subscribers can now have access to wireless data services including the ability to send and receive email and text messages, browse the Internet from the handset and use the handset as a tethered modem internationally, in addition to the voice services they have become accustomed to while traveling to popular global destinations."

"RSB is proud to be able to continually enhance its offering to TELUS, and now provide its Inter-standard Data Roaming service. The Company has worked to make its global roaming service a valuable addition to the TELUS service portfolio," explains S. Blake Swensrud, Chief Executive Officer of WorldCell, Inc., RSB's parent company.

RSB has been working with TELUS since 2005, enabling the company to further expand its global footprint. Using RSB's Inter-standard Data Roaming platform (ISDR), CDMA carriers are able to provide their customers with seamless international data roaming in countries previously unreachable, through one single agreement.

The RSB platform provides the ability to allow CDMA wireless network users to roam on GSM networks internationally*. Billing records related to calls made on the foreign GSM system are converted by RSB and appear as regular calls on the customers' monthly statements from their wireless provider. This service gives customers full access to both North America's superior CDMA coverage and GSM's broad worldwide coverage footprint while using their regular phone and number.

About TELUS
TELUS (TSX: T, T.A; NYSE: TU) is a leading national telecommunications company in Canada, with $8.8 billion of annual revenue and 10.8 million customer connections including 5.1 million wireless subscribers, 4.5 million wireline network access lines and 1.1 million Internet subscribers. TELUS provides a wide range of communications products and services including data, Internet protocol (IP), voice, entertainment and video. Committed to being Canada's premier corporate citizen, we give where we live. Since 2000, TELUS and our team members have contributed more than $91 million to charitable and non-profit organizations and volunteered more than 1.7 million hours of service to local communities. Eight TELUS Community Boards across Canada lead our local philanthropic initiatives. For more information about TELUS, please visit telus.com.

About RSB Limited
WorldCell's Roaming Service Bureau (RSB) is the leading provider of roaming and interoperability services to wireless carriers. RSB leverages the GSM operating license of IMC Island enf (Viking Wireless), a WorldCell Company, and WorldCell operating platforms and global partnerships to deliver the most advanced and seamless wireless communications services available today on a global scale.

About WorldCell
WorldCell is the leading provider of BlackBerry and cellular voice and data solutions to the US Government OCONUS and has been serving government, enterprise and mobile professionals for more than 10 years. With WorldCell's wireless managed services solutions, users are able to procure their local wireless voice and data services in over 28 countries from one-source, providing standardized device management, centralized control, and reduced costs. WorldCell is based in Silver Spring, Maryland, USA and has international offices in Germany, Iceland, Bahrain, Brazil and Japan.

For more information, please contact:

Julie Smithers
TELUS Media Relations
416.684.6817

*Not available to TELUS clients in all countries. Check with TELUS for availability of roaming services.

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