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Extreme Networks Public Relations
Greg Cross
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gcross@extremenetworks.com

EXTREME NETWORKS WIRELESS LAN SOLUTION SUCCESSFULLY COMPLIANCE TESTED WITH AVAYA'S MARKET-LEADING IP TELEPHONY SOLUTIONS

Enterprise mobility solution meets key Avaya interoperability requirements for secure and reliable enterprise IP telephony, both wired and wireless

SANTA CLARA, Calif.; Oct. 15, 2007 – Extreme Networks Inc. (Nasdaq: EXTR) and Avaya Inc. (NYSE: AV), a leading global provider of business communications applications, systems and services, have successfully compliance tested Extreme Networks® Summit WM 200 and Summit WM 2000 wireless local area network (LAN) solutions with Avaya's market-leading Internet protocol (IP) telephony solutions.

Through Avaya's compliance process, Extreme Networks Summit WM 200, Summit WM 2000 controllers and Altitude Access Points (APs) were successfully tested for interoperability with Avaya Communication Manager 4.0 IP telephony software and with Avaya 3600 series wireless IP phones, featuring standards-based 802.11a/b/g technology for mobile communications.

Tests demonstrated that the Extreme Networks Summit WM wireless LAN controllers authenticated phones as they entered the wireless network and supported consistent calls with both Avaya wireless IP phones and Avaya IP softphones. Call sessions were also maintained without call shuffles or drops while devices roamed between separately located access points.

"Enterprises are seeking a seamless transition between their wired and wireless networks to support voice calls reliably and securely," said Suresh Gopalakrishnan, vice president and general manager for the Emerging Products Group for Extreme Networks. "Our Summit WM wireless LAN system provides the intelligence, security and roaming capabilities that are now tested with Avaya's world-class IP telephony solutions, giving customers the confidence they need to deploy a complete mobility solution."

Extreme Networks Summit WM wireless LAN controllers and Altitude APs were validated for interoperability through the Avaya DeveloperConnection program – an initiative to promote the development, compliance-testing and co-marketing of innovative third-party products that are compatible with standards-based Avaya solutions.

"With the compliance testing of wireless LAN solutions from Extreme Networks, Avaya customers have the opportunity to implement a fully interoperable mobility solution that can help them unleash powerful new possibilities for their business," adds Eric Rossman, vice president, developer relations and technical alliances, Avaya. "They are able to use intelligent communications to help customers and colleagues connect with employees on the move – improving response times and delivering new value to their bottom line."

About Avaya Inc.
Avaya delivers Intelligent Communications solutions that help companies transform their businesses to achieve marketplace advantage. More than 1 million businesses worldwide, including more than 90 percent of the FORTUNE 500®, use Avaya solutions for IP Telephony, Unified Communications, Contact Centers and Communications-Enabled Business Processes. Avaya Global Services provides comprehensive service and support for companies, small to large. For more information visit the Avaya Web site: http://www.avaya.com. For more information on the Avaya DeveloperConnection Program, visit www.devconnectprogram.com.

Extreme Networks, Inc.
Extreme Networks designs, builds and installs Ethernet infrastructure solutions that solve the toughest business communications challenges. The company's commitment to open networking sets it apart from the alternatives by delivering meaningful insight and unprecedented control to applications and services. Extreme Networks believes openness is the best foundation for growth, freedom, flexibility and choice. Extreme Networks focuses on enterprises and service providers who demand high performance, converged networks that support voice, video and data over a wired and wireless infrastructure.

Extreme Networks and Summit are either registered trademarks or trademarks of Extreme Networks, Inc. in the United States and/or other countries.

This announcement contains forward-looking statements that involve risks and uncertainties, including statements regarding the performance, speed and availability of the Summit WM Wireless LAN controllers. Actual results could differ materially from those projected in the forward-looking statements as a result of certain risk factors, including, but not limited to product and network configuration. We undertake no obligation to update the forward-looking information in this release. More information about potential factors that could affect our business and financial results is included in our filings with the Securities and Exchange Commission, including, without limitation, under the captions: "Management's Discussion and Analysis of Financial Condition and Results of Operations," and "Risk Factors."