Aperto Networks Partners with Top Systems Integrators to Address Markets in Russia and All Commonwealth of Independent States -CIS- Countries.

Business Editors/High-Tech Writers

SviazExpocomm Conference

MILPITAS, Calif. & MOSCOW--(BUSINESS WIRE)--May 12, 2003

Aperto and partners to host press conference

to share further details on Monday, May 12 at 16:30

Aperto Networks, leading provider of new generation scalable broadband wireless access systems, announced today it has built key channel and joint marketing partner relationships with three top systems integrators serving carriers and corporations in the Commonwealth of Independent States (CIS). These include Avalcom Limited (part of Omniband Group), Dateline Communications, and Advanced Telecom Trade Group. Aperto and its partners will also host a press conference for all interested media at 16:30 on Monday, May 12, 2003. The press conference and a hosted lunch following the event will be located in Pavilion 1, Hall 1B.

These leading integrators have successfully completed Aperto-powered network field tests in high and low-density population settings within Siberia and greater Moscow. Says Aperto CEO and founder Dr. Reza Ahy, "The technical competencies and customer relationships of our new integration partners in the CIS market are truly impressive. They are a strong complement to Aperto's networking features and focus on business-class services. We are working aggressively with them to meet their carrier customer needs and to serve the market of 700,000 small to medium businesses in the CIS. These enterprises are experiencing rapid growth, and are in need of affordable and powerful broadband access solutions."

Avalcom, a very well-respected systems integrator based in Moscow, serves both wireless and wireline carriers and their sophisticated commercial end-users. "Aperto Networks' success in meeting the demanding requirements of enterprises raised the interest within our base of top tier carriers and business subscribers across the CIS," stated Igor I. Diadyuk, Director General of Avalcom.

Dateline Communications has a broad geographic reach, data and wireless savvy engineers and a customer service organization to address several different critical vertical industries. "We serve a broad diversity of carriers and their commercial customers in CIS markets, including integrated communications and mobile operators, top-tier banks and credit-card processors, federal facilities and utility plants," described Andrew Chesnokov, President of Dateline Communications. "Aperto's systems have proven their ability to work well in these applications, in harsh external environments such as Siberia and rural as well as urban installations. Such versatility appeals greatly to our carrier base."

Advanced Telecom Trade Group is specialized in serving the broadcast community, with offices in the Baltics and the Ukraine as well as Russia. "Because of our expertise in radio frequency technologies, we have high expectations for RF capabilities. We have been impressed by the outstanding RF performance of Aperto's systems and the support," emphasized Vladimir Juravlev, director general. "We comprehensively tested seven BWA systems with one of our customers, and found only Aperto's systems worked as promised, without the need for fixes or adjustments. Together with Aperto, we expect to set the industrial-grade standard for BWA in all CIS countries for our large customer base. In addition, having one unified platform for all frequencies will enable easier, more cost-effective and more flexible proposals for our customers' applications."

Aperto Networks will ship regulatory agency-certified production systems to Aperto's CIS channel partners for delivery to carriers in May 2003. All partners will demonstrate Aperto Systems at the SviazExpocomm trade show, http://www.sivel.spb.ru/exhib/svyaz/eng/ , in Moscow, May 12 -16, 2003. Avalcom and Dateline will exhibit in Booth 7502, Pavilion 7, Hall 5. Advanced Telecom Trade Group will exhibit in Booth 3610, Pavilion 2, Hall 3.

In a separate release today, Aperto also announced details of the Russian regulatory certification of its PacketWave broadband wireless access systems in the three mainstream frequency bands.

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 is a board member of the WiMAX Forum. Investors in Aperto 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.