Adaptive Broadband Teams With Jetstream Communications to Offer Wireless Voice-over-ATM Solution.

SUNNYVALE, Calif.--(BUSINESS WIRE)--Oct. 11, 1999--

Partnership Enables Service Providers to Deliver Integrated Voice

and Data Services over Broadband Wireless Connections

ADAPTIVE BROADBAND(TM) CORPORATION (Nasdaq National Market: ADAP) and Jetstream Communications, Los Gatos, Calif., have agreed to co-market a solution that will allow service providers to quickly and cost-effectively deliver integrated voice and data services over wireless ATM connections to small and medium-size businesses.

The solution combines the use of Adaptive Broadband's new AB-Access(TM) wireless data networking equipment with Jetstream's CPX-1000 Voice Gateway and Integrated Access Devices (IADs). By leveraging ATM, which was designed for the integration of voice and data services, the solution is capable of delivering local telephone service with voice quality identical to traditional wireline service.

Since both companies' solutions already utilize the same robust transport architecture, they can presently be used together on a "plug and play" basis to provide the convergence of video, voice and data services over a single wireless data connection.

Broadband at 25 Mbps

Adaptive Broadband introduced AB-Access wireless data networking equipment earlier this year for ultra high speed Internet access. It bridges the last mile, replacing the local loop for business and residential subscribers. AB-Access offers data transmission at rates up to 25 Mbps, a speed up to 400 times faster than dial-up service with a 56K modem. At this bandwidth, users can transmit voice, download full-streaming video, download data files, use real-time video conferencing and surf the Worldwide Web - all at the same time over a single connection. Initial product offerings are in both licensed (MMDS) and unlicensed (U-NII) bands to support the varying needs of different types of service providers. Future product releases at several frequency bands between 2 and 42 GHz are planned, made possible because of the frequency-independent platform architecture of the product.

Market Growth in U-NII Band

"This application of wireless voice-over-ATM technology further validates the market for broadband wireless communication," said Todd D. Carothers, director of AB-Access products for Adaptive Broadband. "Based on feedback from our customers, we project wireless broadband access to become a $100-billion worldwide business. And it has become clear that voice-over applications will be a key market driver."

Carothers said initial applications of AB-access are in the U-NII band. "Interest in this band is quickly increasing," he said. "Demand for wireless broadband communication is ramping up, but applications in the regulated MMDS band have been delayed as the industry awaits further FCC action to finalize two-way transmission capability there. Meanwhile, the U-NII band is available today for two-way transmission, giving both large and small carriers the opportunity to do business immediately."

Adaptive Broadband has announced two contracts during the past 13 weeks for application of its AB-Access data networking equipment, both for Internet access in the U-NII band. "Based on what our customers are telling us, we believe the U-NII band represents a $10-billion potential market in this country for wireless data networking equipment," Carothers said.

"This latest breakthrough in wireless voice-over technology is a significant win for competitive service providers," said David Frankel, Chairman and CTO for Jetstream Communications. "One of the biggest challenges these carriers face is finding access technology that allows them to cost-effectively deliver integrated voice and data services to new subscribers. We can now provide them with a powerful new broadband access solution to quickly and profitably reach whole new subscriber groups."

About Jetstream Communications

Jetstream Communications (www.jetstream.com) designs, develops and markets broadband access solutions for next generation local telecommunications networks. Jetstream is currently the leading provider of Voice over DSL (VoDSL) equipment to incumbent and competitive local exchange carriers. This is the company's first entry into wireless voice-over applications.

Jetstream was recently recognized as one of 13 "Startups to Watch" by Telecommunications magazine. Companies were selected to receive this honor based on their talented management teams, impressive financial backing and superior technology.

About Adaptive Broadband

Adaptive Broadband (www.adaptivebroadband.com) is a data networking solutions company - a leading provider of terrestrial wireless and satellite-based systems to support ultra high speed Internet access, broadcast digital TV transport and worldwide Internet backbones. The company also provides industry-leading solutions for satellite-based data communications and terrestrial wireless telemetry networks.