Triton Network Systems, Inc. Signs Multi-Million Dollar, Multi-Year Broadband Wireless Equipment Supply Contract With Advanced Radio Telecom Corp.

Business Editors/Technology Writers

ORLANDO, Fla.--(BUSINESS WIRE)--Jan. 10, 2000

Triton Network Systems announced today it has signed a three-year, multi-million dollar agreement to supply Advanced Radio Telecom Corp. (ART) (Nasdaq:ARTT), with Triton Network's 100 Mbps Invisible Fiber(TM) Internet and SONET OC-3/SDH STM-1 radios.

Deployed in consecutive point networks, the Triton Networks Invisible Fiber(TM) product line delivers fiber-quality service over RF frequencies in the 20 GHz - 40 GHz range. The point-to-point-to-point network configuration, a self-healing ring, offers high reliability for both SONET/SDH and Fast Ethernet, while maintaining the Invisible Fiber product line's revolutionary high speeds and high density deployments.

"The carrier-class performance of the Triton Network's radios deployed in our 100 Mbps metropolitan area network in San Jose (Calif.) gives ART great confidence in entering into a long-term contract," said Robert McCambridge, ART President and COO. "As we accelerate our build-out of our first 40 domestic markets, Triton Network's Fast Ethernet and OC-3 radios will help position ART as a leading service provider delivering broadband access at speeds up to 155 Mbps."

ART is the nation's first broadband wireless IPSP offering a carrier-class, cost-effective, very high-speed metropolitan area access solution to Internet service providers (ISP), inter-exchange carriers (IXC), on-site service providers (OSP), and application service providers (ASP).

"This deal, a watershed in the broadband fixed wireless marketplace, establishes ART in a leadership position as a provider of both 100 Mbps and SONET OC-3/SDH STM-1 access services," said Skip Speaks, President and Chief Executive Officer of Triton Network Systems. "Working with ART, using the speed and reliability of transmission over Triton Network's radios combined with their ease and density of deployment, we will establish new benchmarks for fiber quality broadband wireless services allowing ART's customers to keep pace with the information and e-commerce revolution."

About Triton Network Systems

Triton Network Systems, Inc. is a leading provider of broadband fixed wireless network products. The company's Invisible Fiber(TM) high bandwidth broadband wireless network product line covers the 38 GHz, Local Multipoint Distribution Service (LMDS), and Local Multipoint Communication Systems (LMCS) markets, with functionality designed to fiber optic specifications. Triton Network Systems broadband fixed wireless Invisible Fiber(TM) 155 Mbps SONET/SDH OC-3/STM-1 and 100 Mbps Invisible Fiber Internet products are designed to be deployed in self-healing route-diverse consecutive point networks, providing complete telephony, data, and Internet network solutions. The Company is committed to producing products that will make possible the success of broadband fixed wireless in the telephony and data marketplace, and will enable the evolution of the Internet by delivering high-speed connections to businesses using and developing both e-commerce and up and coming applications for the Internet. Triton Network Systems is a privately held company with an investor group that includes several prominent venture capital firms. www.triton-network.com

About Advanced Radio Telecom

Advanced Radio Telecom Corp. (Nasdaq:ARTT), headquartered in Bellevue, Wash., is a provider of broadband Internet Protocol (IP) access services at speeds up to 155 Mbps. ART currently owns and operates broadband wireless metropolitan area networks in San Jose, Seattle, Portland, Ore., and Phoenix, and plans to expand to 40 markets over the next three years. ART is a Cisco Powered Network(TM) service provider and has a strategic relationship with Qwest Communications International Inc. (NYSE:Q). ART has a nationwide footprint of 38GHz spectrum licenses in the United States, and owns 26GHz and/or 38GHz spectrum licenses in the United Kingdom and several Scandinavian countries. For more information, please visit ART's web site at www.art-net.net.

The above information includes forward-looking statements regarding Advanced Radio Telecom's network deployment and delivery of broadband access. These statements are not guarantees of future performance. Known and unknown risks, uncertainties, and other factors, including without limitation, capital requirements and other financial risks, customer demand, technological risks, the ability to meet financing conditions, management of growth, ability to achieve Year 2000 compliance, competition and government regulation may cause actual results to differ materially from the future results implied or expressed in the forward looking statements. Additional information about the most significant of such factors is set forth in ART's most recent annual report on Form 10-K. ART does not undertake to update or revise its forward-looking statements publicly even if experience or future changes make clear that any projected results expressed or implied herein will not be realized.