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SUPERCOMM 2001 BOOTH # 2312

Westford, Mass., May 29, 2001 – At SUPERCOMM 20001, Sonus Networks (Nasdaq: SONS) will highlight technology trends in packet voice infrastructure and related services through participation in several conference presentations and extensive interoperability demonstrations. SUPERCOMM is the world's largest annual communications technology exhibition and conference, and is being held June 3-7, 2001 at the Georgia World Congress Center in Atlanta, Georgia. 

Industry experts from Sonus are taking an active role in the educational portion of the conference, and will be participating in the following conference sessions. All presentations will be held at the Georgia World Congress Center.

Monday, June 4, 2001, 10:00am - 11:30am 
"Industry Update - IP: Next Gen Networks"
Speaker: Stephen Collins, vice president, marketing

Tuesday, June 5, 2001, 9:00am - 10:30am
"Converged Networks: Radically Enhanced New Service Opportunities"
Speaker: Bob Dye, director, product marketing

Tuesday, June 5, 2001, 9:00am - 10:30am
"Packet Telephony Fundamentals"
Speaker: Mike Hluchyj, founder and chief technology officer

Tuesday June 5, 2001, 10:45am - 12:15pm
"Migrating to IP Voice Networks"
Chairperson: Bob Dye, director, product marketing
Speaker: Mike Hluchyj, founder and chief technology officer

Wednesday, June 6, 2001, 9:15am - 10:45am
"Services and Applications for Carrier IP Networks"
Speaker: Bob Dye, director, product marketing

Wednesday, June 6, 2001, 9:15am - 10:45am
"VoIP Protocols"
Speaker: Mike Hluchyj, founder and chief technology officer

Wednesday, June 6, 2001, 11:00am - 12:30pm 
"Application Servers: Enabling the Softswitch Revolution"
Speaker: Mike Hluchyj, founder and chief technology officer

Wednesday, June 6, 2001, 2:00pm - 3:30pm
"Trial by RFI: Next-Generation Switching Tribunal"
Speaker: Bob Dye, director, product marketing

Sonus, along with nearly three-dozen members of its Open Services Partner Alliance(R) (OSPA), will be showcasing packet-based solutions and enhanced services operating in office, home and travel environments. At the core of the demonstrations is Sonus' award-winning family of voice infrastructure solutions and software, including the GSX9000^(TM) Open Services Switch, the INtelligentIP^(TM)Softswitch, the PSX6000^(TM) SoftSwitch, and the SGX2000^(TM) SS7 Signaling Gateway, as well as the Sonus Insight^(TM) Element Management System.
Additional information on SUPERCOMM 2001 can be found at http://www.supercomm2001.com.

About Sonus Networks

Sonus Networks, Inc. is a leading provider of voice infrastructure products for the new public network. Sonus' solutions enable service providers to deploy an integrated network capable of carrying both voice and data traffic, and to deliver a range of innovative, new services. The Sonus Open Services Architecture^(TM) (OSA) and award-winning Packet Telephony suite cut the time-to-market for competitive new service products, allowing carriers and third-party developers to expand market share and build important new revenue streams. Its highly scalable products fully interoperate with and extend the life and utility of today's public network. Sonus embodies in its management and staff decades of experience in developing carrier-class voice, data and multimedia solutions for implementation in the world's largest networks. Sonus, founded in 1997, is headquartered in Westford, Massachusetts. Additional information on Sonus is available at http://www.sonusnet.com.

Open Services Partner Alliance, GSX9000, PSX6000, SGX2000, Sonus Insight and Open Services Architecture are trademarks of Sonus Networks. INtelligentIP is a registered trademark of Sonus Networks. INIP Powered is a service mark of Sonus Networks. All other company and product names may be trademarks of the respective companies with which they are associated.