Bytemobile Optimizes Nextel's iDEN Network to Improve Wireless Web and E-Mail Delivery

Macara Wireless Optimization Service Node (WOSN) Enables Faster Data to Nextel Customers.

Reston, Va and Mountain View, Calif. - May 14, 2002

Bytemobile, a mobile data services infrastructure provider, today announced that it has signed a software licensing and support services agreement with Nextel Communications Inc. [NASDAQ: NXTL] for the use of the Macara™ wireless optimization service node (WOSN) as an integral component to increase the speed of wireless data services on Nextel's national all-digital iDEN network. The deal marks Bytemobile's first agreement with a nationwide 2.5G packet data network provider.

"Bytemobile offers a carrier-grade solution that improves the quality and speed of our wireless data offerings," said David Zufall, Nextel vice president, network architecture. "The Macara WOSN enhances our services options, so we can strengthen the flexibility of our wireless data offerings for our customers."

The Macara platform dynamically improves the delivery of applications and content such as web pages and email over wireless IP data networks and significantly improves network utilization. As a result of this optimization, end-users experience accelerated downloads and faster application performance in a more stable mobile environment. Concurrently Nextel can reduce costs, simplify the introduction of new data services and expand their network utilization while enabling data adoption and improving subscriber retention.

The Macara WOSN also incorporates advanced networking technology that enables mobile network operators to build intelligence into the wireless data network. Additional services include: subscriber management, enterprise service differentiation and support and advanced networking solutions.The Macara WOSN currently deployed is clientless, resulting in optimization support across most of Nextel's wireless data services.

"We find mobile network operators are not looking for just compression-based optimization. They want a comprehensive solution that increases the transmission quality, reliability and speed of wireless data offerings, and one that can be tailored to their specific network needs and growth plan, whether it's for a 2.5G or 3G network," said Steve Livingston, Bytemobile senior vice president, North American sales and worldwide marketing. "With the Macara platform we are able to deliver those unique solutions. Our experienced technologists and professional services coupled with a strong financial backing allow for creative product development, hands-on customer service and solutions that enhance Nextel's ability to meet their customer needs."

About Bytemobile

Bytemobile enables mobile operators to improve the wireless data-user experience and security over any wireless data network, regardless of their underlying network technology. The company offers a unique suite of compression, acceleration and network connectivity technologies that allow mobile network operators to offer improved services to consumer and enterprise customers. Announced customers include Vodafone UK and Nextel Communications. The company is headquartered in Mountain View, CA, with offices in East Sussex, England.