Spirent Communications Is The Only Test Vendor To Perform End-To-End MPLS And Voice Testing At First Ever Global Multiservice Interopability Event

Rockville, MD (OTS) - Spirent Communications, a wholly owned
business group of Spirent plc (NYSE:SPM)(LSE:SPT) today announced its
successful participation in Global Multi Service Switch Forum (MSF)
Interoperability 2002 (GMI 2002), the industry's first live networked
test and demonstration event for the MSF's Release 1 Architecture.

The test, which took place from November 4-15, was conducted in a
real-time networked environment simultaneously between three
different sites - one each in North America, Europe, and Asia.
Spirent's participation in GMI 2002 was spearheaded by its Advanced
Test Program (ATP).

"MetaSwitch shares Spirent's commitment to supporting the MSF
Release 1 Architecture - and participation in the MSF GMI 2002 was a
key step in demonstrating global interoperability," said Paul
Brittain, Senior Product Manager at MetaSwitch. "Support from Spirent
was crucial in setting up and running the test scenarios."

GMI 2002, comprised of four voice scenarios and one data scenario,
aimed to successfully demonstrate MSF's Release 1 Architecture
utilizing the MEGACO H.248, Bearer Independent Call Control (BICC),
and Session Initiation Protocol (SIP) as the main control and
signaling protocols.

Spirent was the only participating test vendor with the capability
to provide an end-to-end test environment with MPLS transport
emulation and voice call set-up and tear-down.

More specifically, Spirent provided its award-winning Adtech
AX/4000 to demonstrate the use of MPLS and MPLS VPNs for secure
transport of VoIP networks and traffic engineering.

Spirent's Abacus2 SIP, MGCP, and MEGACO VoIP capabilities also
were featured. The Abacus2 was used to terminate and provide Voice
Quality Analysis for SIP calls. Spirent's Abacus1 was used for analog
and SS7 signaling to generate and terminate voice calls over analog
and TDM T1 and E1.

Spirent's offering helped facilitate the MSF's validation of the
Release 1 Architecture test scenarios, and each vendor's testing and
validation of its own equipment's ability to interoperate with other
equipment.

Spirent provided equipment and engineering support in all three
labs:

- BTexact Technologies' Advanced Research and Technology Centre,
Adastral Park, Martlesham, Ipswich, England
- NTT's Musashino Research and Development Center in Tokyo
- University of New Hampshire Interoperability Lab, Durham, NH

About GMI 2002

Global MSF Interoperability 2002 (GMI 2002) was the first-ever
interoperability demonstration of a multi-service architecture
designed by a broad mix of major carriers, network equipment
manufacturers and test equipment vendors. The Multiservice Switching
Forum's Release 1 Architecture was tested November 4-15
simultaneously at three test sites, across three continents - one
each in North America, Europe and Asia. The primary goal of GMI 2002
was to demonstrate MSF's Release 1 Architecture utilizing MEGACO
H.248, Bearer Independent Call Control (BICC) and Session Initiation
Protocol (SIP) as the main control and signaling protocols. For
additional information on the event please visit www.msforum.org.

About Spirent's Advanced Test Program (ATP)

Spirent's ATP, in existence since 2000, is the first of its kind
in the communications sector offering programs and expertise
specifically designed to support key organizations conducting the
industry's most advanced test and measurement activities. The ATP
team supports test labs at leading universities, publications, trade
shows, consortia, and advanced research facilities, as well as the
industry's most prestigious independent testing organizations. ATP is
a worldwide initiative that coordinates critical testing and research
support across all divisions of Spirent Communications.

About Spirent Communications

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. www.spirentcom.com

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.

Spirent, Spirent Communications and the Spirent logo are
trademarks of Spirent plc. All other trademarks or registered
trademarks are held by their respective companies. All rights
reserved.

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result of new information, future events or otherwise.

ots Original Text Service: Spirent Communications

Rückfragehinweis:
Contact: Cathi Lane
Spirent Communications
Director, Public Relations
Phone: 818-676-2364
mailto:cathi.lane@spirentcom.com

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