CommWorks Provides Core Data Network Infrastructure for KDDI CDMA2000 1XRTT Wireless Network.

Business Editors/High-Tech Writers

TOKYO and ROLLING MEADOWS, Ill.--(BUSINESS WIRE)--April 1, 2002

KDDI of Japan, one of the world's leading wireless service providers, will use core data network infrastructure equipment from CommWorks, a 3Com (NASDAQ: COMS) company, to deliver third-generation high-speed wireless services to its subscribers, the companies announced today.

Launching today in major cities across Japan, the new service will allow KDDI customers to enjoy a richer Internet experience while browsing on their wireless devices. Subscribers will be able to download data, including video clips and images, at speeds of up to 144 kilobits per second (kbps) and navigate and find locations using the global positioning system.

"The true promise of high-speed wireless access lies not in the technology, but in the new services and applications that the technology will enable, making wireless data both useful and usable," said Kaoru Tachibana, Executive Managing Officer, "au" Business Sector, KDDI. "Consumers will benefit from increased productivity and efficiencies made possible by high-speed wireless connectivity."

"Because the 1X system uses packet-switched technologies, KDDI will be able to make more efficient use of allocated bandwidth spectrum," said Irfan Ali, president, CommWorks. "They will be able to serve more customers with less bandwidth while providing even more attractive and efficient services. By making modifications on top of the CDMA2000 1XRTT standard, we are also supporting KDDI's requirement for the smooth migration of data service from cdmaOne (IS-95B) handsets into the 1X network without any impact on subscribers."

KDDI, Japan's second largest telecommunications firm and operator of the au mobile phone service, is using technology known as CDMA2000 1XRTT to deliver its new high-speed voice and data services. The higher speed networks allow service providers to evolve wireless data offerings from text-only format to advanced content and applications, rich with graphics, color and multi-media features.

CommWorks products used in KDDI's network include the Total Control(R) 1000 Packet Data Serving Node (PDSN), the point of entry into the wireless packet data network for mobile subscribers; the Total Control 1000 Home Agent, which terminates Mobile IP tunnels and serves as the anchor point for Mobile IP subscribers; and the CommWorks 4301 Home Agent Control Node, which manages multiple home agents.

CDMA2000 1XRTT data networking equipment from CommWorks is now deployed by leading wireless service providers in Japan, Korea, Canada, and the United States, making the concept of "the Internet in your pocket" a reality. CommWorks allows service providers to offer high-speed, wireless data access to the mobile Internet and to private intranets, including quick, authenticated Internet access using Simple IP services; and fast, secure access to home or private networks using Mobile IP services. These services create the necessary data conduit for delivering enhanced revenue-generating applications.

About CommWorks

CommWorks, a 3Com Company, supplies network service providers around the world with access infrastructures and IP services platforms that open new business opportunities and help them establish unique positions in a competitive marketplace. With flexible multi-service hardware platforms and modular software components, the comprehensive CommWorks architecture makes it possible for service providers to integrate their existing infrastructures with innovative technologies to deliver an array of next-generation IP-based enhanced services to their customers. For further information, visit www.commworks.com

About 3Com Corporation

3Com is the global leader in functionally rich, easy-to-use networking products that connect businesses to their employees, customers and suppliers - anytime, anywhere. 3Com is also a leader in Internet protocol (IP) service platforms and access infrastructure for the network service provider market. In 1979, the company was founded by one of the inventors of Ethernet technology on which virtually all local area networks are based. Since then, 3Com has sold more than 340,000,000 Ethernet connections. 3Com has headquarters in Santa Clara, California, and offices around the world. For further information, please visit www.3com.com, or the press site www.3com.com/pressbox.

3Com, CommWorks and Total Control are registered trademarks and the CommWorks logo is a trademark of 3Com Corporation. All other trademarks or registered trademarks are the property of their respective owners.