Aperto Networks and TowerStream Invited to Participate at Wireless Technology
Event Convened by FCC, Commerce and State Departments
Companies will speak on growth, potential for unlicensed wireless access networks

Milpitas, Calif., Wednesday, May 7, 2003 - Aperto Networks, a leading provider of new generation scalable broadband wireless access systems, and TowerStream, the leading fixed wireless broadband provider in the Northeast United States, have been invited to speak and demonstrate their technologies at "Wireless Innovations: New Technologies and the Evolving Policies" from May 12-13, 2003 at the U.S. Department of Commerce Lobby and Auditorium at 1401 Constitution Avenue, N.W. (entrance on 14th Street), Washington, DC, http://www.ntia.doc.gov/forums/wi2003/index.html.

The Federal Communications Commission (FCC), Commerce Department's National Telecommunications and Information Administration (NTIA) and U.S. Department of State's International Communications and Information Policy (CIP) groups have convened the two-day wireless technology showcase and policy discussion. The technology exhibition on day one will provide policy-makers and members of the public and news media an opportunity to witness live demonstrations of cutting-edge wireless technologies and applications. The five panel discussions on day two will focus on unlicensed wireless technologies and allow technology innovators and entrepreneurs the opportunity to interact and exchange ideas with policy decision-makers.

The Aperto Networks and TowerStream teams are among fifteen companies invited to exhibit:

When: Monday, May 12, 2003, 10am - 3pm

What: Technology Showcase: Aperto Networks and TowerStream will demonstrate the PacketWave® Point-to-Multipoint system (base station & subscriber units). Key technologies such as dynamic per-subscriber link optimization will be demonstrated. An Internet connection will be used to demonstrate TowerStream's extensive wireless access network in the Boston Metro area.

Who: Aperto Networks and TowerStream executives

Where: U.S. Department of Commerce Lobby

Aperto Networks has been invited to speak on the first panel, co-moderated by the FCC and NTIA:

When: Tuesday, May 13, 2003, 9:15 - 10:45am

What: Panel 1: The Growth and Future Potential for Unlicensed Wireless Networks

Who: Alan Menezes, Vice President of Marketing, Aperto Networks

Where: U.S. Department of Commerce Auditorium

Mr. Menezes will be the official representative of the WiMAX Forum, a cross-industry standards compliance and interoperability body, and will specifically address issues of wireless standards including IEEE 802.16 and WiMAX, license-exempt spectrum market and applications, interference management and emerging successful business models for license-exempt carriers, as well as Wi-Fi to Wireless Metropolitan Area Network (MAN) integration.

Panel discussions and exhibits will be open to the public and press on a first-come, first-served basis and space is limited.

About Aperto Networks
Aperto Networks is a leading provider of multiservice broadband wireless access systems for global markets. The company was founded to provide a breakthrough solution to one of today's critical network bottlenecks - last-mile broadband access. Aperto's practical, scalable systems and patent-pending technologies support new wireless builds and complement existing wireline broadband access technology. Shipping to carriers since 4Q 2001, the company has delivered commercial systems to 25 countries, meeting their need for rapid network deployment, multiservice scalability, ease of installation, IP-rich network functionality, and cost-effectiveness. Aperto dramatically shortens the lengthy provisioning cycles for broadband services by enabling rapid service provisioning across dense urban to suburban locations. The company is a leading contributor to IEEE 802.16a and ETSI-BRAN standards, and a board member of the WiMAX Forum. Company investors include Alliance Ventures, Canaan Partners, Tyco Ventures, Innovacom (France Telecom), Stratex Networks, Oki Electric Industry Company, Mitsubishi International Corporation, Ridgewood Capital, Satwik Ventures, Redwood Ventures and Labrador Ventures. For more information on Aperto Networks, go to www.apertonet.com.

About TowerStream
TowerStream is the leading fixed wireless broadband provider in the Northeast. The company's last mile delivery leverages superior wireless technology developed jointly with partners such as Aperto Networks, Western Multiplex and Cisco. TowerStream presently serves New England markets, including the greater Boston and Providence areas, and is aggressively expanding coverage throughout the region. TowerStream delivers high-speed Internet access to commercial bandwidth users through second-generation point-to-multipoint fixed wireless broadband networks. TowerStream offers customers lower costs and greater reliability than traditional wire line networks, and provides bandwidth on demand and wireless redundancy. For more information on TowerStream services and offerings, please visit www.towerstream.com or call 401-848-5130.

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