NTT East and NTT West Start Sales of Atreus Systems guestLINK

NTT East and West to Sell Atreus guestLINK" Service Creation Platform
Under Own Brand Name

Cupertino, California, March 4, 2002 - Nippon Telegraph and Telephone East (NTT East) and Nippon Telegraph and Telephone West Corporation (NTT West) has announced an agreement with Atreus Systems™, an emerging leader of service fulfillment solutions, to sell Atreus guestLINK™ Service Creation Platform under NTT East and NTT West's brand name.

NTT East and NTT West will sell the Atreus guestLINK platform as part of a complete broadband solution to the Japanese hospitality market. Atreus guestLINK is a market-ready solution that will enable NTT East and NTT West to quickly launch Internet-based services to the hospitality industry. It is equipped with a starter set of services including plug-and-play Internet access. Atreus guestLINK has a flexible architecture that will allow NTT East and NTT West to deliver compelling services today that can be easily expanded to offer new services including content and applications in the future.

"We're pleased that a recognized leader such as NTT East and NTT West has embraced our technology to deliver high-value services to the Japanese hospitality market," said Mike Crumlin, vice president of worldwide sales & service at Atreus Systems. "NTT East and NTT West have selected Atreus as their service creation and delivery solution because of our proven ability to enable providers to successfully deploy IP services in multi-vendor and multi-technology environments. The Atreus solution will allow NTT East and NTT West to realize top line revenue growth by accelerating customer acquisition in the hospitality market and rapidly deploying new profitable services to their growing customer base."

"This agreement is proof that Atreus is executing on their business plan by delivering innovative products that are being embraced by carriers and service providers worldwide," said Amy Cravens, industry analyst at Cahner's In-Stat. "Atreus guestLINK will allow NTT East and NTT West to accelerate time-to-market of new services and increase customer retention rates by boosting their subscribers' quality of experience with self-subscription service portals."

About Atreus guestLINK™
With the power of Atreus guestLINK™, service providers are able to quickly bring to the hospitality market a full suite of differentiated IP-based services for their customers. The Atreus guestLINK solution comes complete with the technical capabilities needed to support IP-based service offerings:

About NTT East and NTT West
NTT East and NTT West are innovators in the world of the Internet. We provide the best innovative Internet services to help our customers realize new business models or lifestyles, thereby becoming a "Global IP Company". For more information, please visit the company's website at: http://www.ntt-east.co.jp/ and http://www.ntt-west.co.jp/

About Atreus Systems
Atreus Systems™ delivers a service fulfillment software platform for the automated creation and delivery of managed IP services and applications. Atreus xAuthority™ Service Fulfillment Solution is a front-to-back-end software platform that helps carriers and service providers drive top line revenue growth by increasing average revenue per user (ARPU), improving capital efficiency, reducing operations expenses and focusing on "success based" capital expenditures.
Atreus Systems, headquartered in Cupertino, California, is a privately held company financed by leading telecom venture capital firms Mobius Venture Capital (formerly SOFTBANK), Blueprint Ventures, Skypoint Capital Corporation, BDC Venture Capital and Aliant Telecom. For more information, visit the company's web site at atreus-systems.com or call .