RSB Ltd Expands its Partnership with Mexico's Iusacell to
Provide Enhanced Global Roaming on the
new BlackBerry 8830 World Edition smartphone

Silver Spring, MD; Mexico City, MX (October 17, 2007)  Worldcells RSB Limited (RSB) and Iusacell, a leading Mexican telecommunications company, announced today the implementation of RSBs Inter-standard roaming services, enabling Iusacell to offer its subscribers enhanced international voice and data roaming on the new RIM BlackBerry 8830 World Edition smartphone. WorldCell has embarked on this new partnership with Iusacell and officially launch these services on October 15, 2007.

"Thanks to RSBs Inter-standard Data Roaming (ISDR) platform we have been able to enhance our clients wireless experience when traveling internationally, said Adrian Velasco, Director of Voice and Data Services at Iusacell. "Iusacell 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 work with Iusacell, and provide its Inter-standard Voice and Data Roaming service. The Company has worked to make their global roaming service a valuable addition to their service portfolio, explains S. Blake Swensrud, Chief Executive Officer of WorldCell, Inc., RSBs parent company.

Using RSBs 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 Americas superior CDMA coverage and GSMs broad worldwide coverage footprint while using their regular phone and number.

 

About Iusacell
Iusacell is the third largest mobile phone operator in Mexico. This company provides cellular services to over 85% of the Mexican population, including Mexico City. Iusacell has over 4 million subscribers, offering both local and long-distance telephone services. Iusacell also provides messaging service, mobile television and wireless broadband services (BAM) over the sole 3G nation-wide network in Mexico. It offers its services through sales agents and electronic means, such as ATMs, over the phone dialing, points of sale, and the companys website including prepaid, and roaming services.

About WorldCell
WorldCell is the leading provider of BlackBerry and cellular voice and data solutions to the US Government and has been serving government, enterprise and mobile professionals for more than 10 years.  With WorldCells 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, Brazil and Japan. WorldCells cross-protocol roaming service enables roaming with GSM carriers in over 160 countries.


For more information visit our website at www.worldcell.com, or please contact:

Jim Jeffery 
Sr. Director of Marketing and Product Management

WorldCell, Inc. 
301.960.0060 ext. 354

jjeffery@worldcell.com

Adrian Velasco Morales

Voice and Data Director

Iusacell Mexico

Montes Urales 460

Col. Lomas de Chapultepec

CP 11000 Mexico, D.F.

+52 (55) 5109 5589

avelasco@iusacell.com