ADVISORY/Aperto Networks and its Service Provider Partners Invited to Speak on WiMAX at the 10th WCA Technical Symposium and Business Expo.

Business Editors/High-Tech Writers

ADVISORY...for Tuesday & Wednesday (Jan. 20 & 21)

WCA Technical Symposium and Business Expo

MILPITAS, Calif.--(BUSINESS WIRE)--Jan. 19, 2004

Aperto Networks, a leading provider of new generation scalable broadband wireless access systems, will present at several key panel presentations at the annual Wireless Communications Association (WCA) Technical Symposium and Business Expo, http://www.wcai.com/events.htm, hosted at the Fairmont Hotel in San Jose, California, from January 21 to 23, 2004.

Dr. Reza Ahy, Aperto's president, chairman and CEO, has been invited to speak on "WiMAX Network Architecture, Backhaul, and Traffic Management Innovations". As a founding board member of WiMAX, Aperto will also co-host several WiMAX meetings and sessions taking place at the symposium. Dean Chang, Aperto's director of product marketing, is the newly appointed chair of the WiMAX Service Provider Working Group.

MVSNet, Aperto's service provider partner in Mexico, will present immediately following Dr. Ahy's presentation. Francisco Madrazo, COO of MVSNet, will provide an "MVS Operator Progress Report On BWA In Mexico". In addition, Jeff Thompson, President and COO of TowerStream, Aperto's service provider partner in the US will speak on a panel on "Preparing for WiMAX Deployments".

When:     Tuesday, January 20: 3:45 - 4pm
What:     Service Provider Working Group (this introductory session
          will detail working group's mission, key 2004 activities and
          engagement with WiMAX certification processes)
Who:      Dean Chang, director of product marketing, Aperto Networks;
          chair, WiMAX Service Provider Working Group
          www.apertonet.com
Where:    Gold Room

When:     Wednesday, January 21: 2:30pm - 3:30pm
What:     Preparing for WiMAX Deployments
Who:      Jeff Thompson, president and COO, TowerStream
          www.towerstream.com
Where:    Gold Room

When:     Wednesday, January 21: 4:15 pm - 4:35pm
What:     WiMAX Network Architecture, Backhaul, and Traffic Management
          Innovations
Who:      Dr. Reza Ahy, president, chairman and CEO, Aperto Networks
          www.apertonet.com
Where:    Crystal Room

When:     Wednesday, January 21: 4:40 pm - 5pm
What:     MVS Operator Progress Report On BWA In Mexico
Who:      Francisco Madrazo, COO, MVSNet
          www.mvsnet.com.mx
Where:    Crystal Room

Exhibit Hours: Wednesday, January 21 from 5pm to 7:30pm and Thursday, January 22 from 11am to 1:30pm and 4pm to 6:30pm. Aperto will exhibit in Booth 309.

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. The PacketWave(R) system provides a family of base stations, subscriber units, and associated radios and antennas in 2.5, 3.5 and 5 GHz frequency bands for global point-to-point and point-to-multipoint deployments. Its scalable systems and patent-pending technologies support new wireless builds and complement existing wireline broadband access technology. Aperto systems have been deployed by service providers in 25 countries, meeting their needs for ease of installation, IP-rich network functionality and cost effectiveness, while enabling rapid provisioning and interference resilient operation in dense urban to suburban locations. The company is a founder and leading contributor to IEEE 802.16a as well as to ETSI-BRAN standards, and a board member of the WiMAX Forum. For more information on Aperto Networks, go to www.apertonet.com.