Tokyo, Japan and Redwood City, Calif. (October 7, 2003) - NEC Corporation, a leading total solution provider of mobile business, and SEVEN, a leader in Out of Office™ mobile technologies, announced today that KDDI, the second largest mobile operator in Japan based in Chiyoda-ku, Tokyo (CEO: Tadashi Onodera), will offer Keitai (meaning "mobile" in Japanese) Office, a real-time remote access service for business users. Based on System SEVEN™ technology, Keitai Office provides secure access to work and personal email via any mobile device. NEC provided total system integration for KDDI based on System SEVEN™. KDDI services the biggest mobile data communications market, and has over 10 million 3G subscribers and 17 million mobile subscribers.

"KDDI has enjoyed tremendous success in the consumer data services market, and with our fast growing subscriber base we are looking to replicate that success in the business market," said Yasuhiko Ito, Senior Vice President of KDDI. "The Keitai Office service enables KDDI to quickly expand our presence into the business market and satisfy our individual and corporate customers' needs with affordable, easy-to-use, real-time and secure access to business and personal email. We believe that the Keitai Office service has the potential to fundamentally change the way people communicate; flexibility and freedom for workers, and enhanced productivity for businesses."

"I recognize that System SEVEN offers a secure service that is well-suited for mobile operators entering enterprise solution market," said Katsuhiro Nakagawa, Vice President of NEC. "SEVEN's market-leading technology, KDDI's highly value-added mobile devices, and NEC's experience in IT and mobile industry make a great combination to achieve the new service."

Named 2003 Network Magazine Mobile Service of the Year, SEVEN's real-time mobile email services have been internationalized and localized for operators worldwide, and deployed in leading wireless data regions including Japan, Asia Pacific, Europe and North America. System SEVEN is delivered to Japanese mobile operators through NEC.

Keitai Office provides secure access to work and personal email, PIM information and documents via any KDDI mobile device. The service is available as a self-provisioned service for individuals, or as a managed service deployed by businesses for their entire organization. Keitai Office service eliminates the need for subscribers to forward their work email to an unsecured personal email account. Using System SEVEN's proven, industry-leading security and encryption technologies, with Keitai Office corporate data is secure at all times, and is never replicated to servers beyond the corporate firewall.

"SEVEN is honored to be working with KDDI and NEC to serve the most advanced data market in the world. KDDI's subscribers are among the most sophisticated and prolific mobile data users," said Bill Nguyen, CEO of SEVEN. "SEVEN is 100% focused on creating an open ecosystem in which the world's leading operators, system integrators and application developers can bring to market communication services that enhance peoples' lives. KDDI and NEC are wonderful partners in that pursuit."

This time, NEC and SEVEN jointly developed mobile email applications that support BREW, an application offered by KDDI. NEC will be further involved in the development of applications on mobile terminals that use the solution. NEC and SEVEN will continue to work together to jointly market mobile value-added services, and will be introducing additional strategic projects in the future.

About SEVEN

SEVEN is the leader in Out of Office™ mobile technologies. The company's patent-pending System SEVEN™ software architecture empowers mobile operators to deliver subscribers secure, manageable, real-time access to personal and enterprise applications on their device of choice, including Palm and Pocket PC based smart devices, PDAs, mobile phones and internet browsers. Available today through Cingular Wireless, KDDI Corp., NTT DoCoMo, O2, Orange, The SingTel Group and Sprint PCS, SEVEN provides individuals and businesses with the leading, lowest cost mobile data solution. SEVEN is a global company headquartered in Redwood City, CA, with regional offices in London and Tokyo. For more information, please visit http://www.seven.com.

SEVEN, System SEVEN and the SEVEN logo are trademarks owned by SEVEN Networks, Inc. Other product or company names mentioned herein may be the trademarks of their respective owners.