Spirent Communications to Present at Internet Telephony Conference and Expo

Business Wire, Sept 30, 2002

Business/Technology Editors

Internet Telephony 2002

SAN DIEGO--(BUSINESS WIRE)--Sept. 30, 2002

Director of voice product marketing, Gordon Beith addresses

"Putting Softswitches to Work" and Jing Chen, product marketing

manager, discusses "SIP Testing"

WHO: Spirent Communications is a worldwide provider of integrated performance analysis and service assurance systems for next-generation network technologies. Spirent's solutions accelerate the profitable development and deployment of network equipment and services by emulating real-world conditions in the lab and assuring end-to-end performance of large-scale networks.

Spirent Communications is a wholly owned business group of Spirent plc, an international network technology company. Spirent plc is listed on the London Stock Exchange (ticker: SPT). The company is also listed on the New York Stock Exchange (ticker: SPM; CUSIP number: 84856M209). www.spirent.com

WHAT: Putting Softswitches to Work

Gordon Beith will participate in the panel discussion -- Service Provider Mega Session focused on softswitches. Mr. Beith will discuss softswitch functions, interoperability challenges and QoS challenges, how to test softswitches and softswitch-based networks, as well as reviewing the necessary test tool to do so.

SIP -- Bridging the Chasm Between Legacy and Next Generation Networks

Jing Chen will address the key issues in implementing SIP, diagnosing problems in an SIP network, the types of tests needed to verify the performance of SIP, and the test methodologies, as well as the specific testing of an SIP media gateway.

WHEN: October 1 - 3, 2002

SIP session: Tuesday October 1, 2002, 2:15 p.m. - 3:15 p.m.

Softswitch panel: Thursday October 3, 2002, 12:45 p.m. - 3:30 p.m.

WHERE: Internet Telephony Conference & Expo

Hotel Del Coronado, San Diego, CA