Spirent(R) Communications Expands LBS Test Leadership.

Solution Enables GCF Device Certification and Provides Powerful Tool for A-GPS Developers

SUNNYVALE, Calif. -- Spirent Communications (NYSE:SPM) (LSE:SPT), a global provider of performance analysis and service management solutions, today announced market-leading enhancements to its location-based services (LBS) test platform. The Spirent UMTS Location Test System (ULTS) is the only commercially available system that enables the full range of Assisted GPS (A-GPS) testing needs: technology and chipset development, design verification of GSM and UMTS devices, and UMTS terminal certification.

The Spirent ULTS enables GCF certification of LBS-capable UMTS mobile devices. Five out of six test cases from the 3GPP's TS 34.171 A-GPS terminal conformance specification have been validated by the Global Certification Forum (GCF) on the Spirent ULTS. The ULTS is the first and only platform to exceed the 80% test case validation threshold required to trigger A-GPS terminal certification.

The Spirent ULTS platform has also expanded to meet the needs of A-GPS chipset and module developers and evaluators. Based on Spirent's proven platform, the new ULTS A-GPS Development System (ULTS-ADS) is designed specifically for optimizing the performance of an A-GPS chipset or module via a combination of industry-standard test cases and flexible performance test capability.

"Spirent's focus on both standards-based certification testing and lab-based performance test solutions demonstrates our dedication to enabling the deployment of location-based services," commented Richard Catmur, business development manager at Spirent's Wireless & Positioning Division. "Our ground-breaking work around TS 34.171 will help operators ensure successful deployment of new location-based services. The development of ULTS-ADS allows vendors to validate A-GPS device performance faster and more completely than ever before."

A-GPS module and technology developers require a sophisticated test environment that includes GPS RF signals, assistance data flows and call signalling. The ULTS-ADS is a unique offering that routes messages to and from an A-GPS module via a Spirent-defined interface. Both 3GPP Control Plane and OMA SUPL User Plane implementations are supported, as well as module-based and module-assisted positioning methods. The new product combines industry-standard test cases validated on Spirent's ULTS with TestDrive executive software and Spirent's class-leading GSS6560 GPS simulator to provide an automated, lab-based A-GPS environment. Call flow flexibility is offered by a Spirent SMLC Emulator which is included as standard with the ULTS-ADS.

With the availability of the ADS configuration, the ULTS platform now addresses the full range of A-GPS testing needs, from technology and chipset development to design verification of GSM and UMTS devices and UMTS terminal certification.

About Spirent Communications

Spirent Communications, www.spirent.com, is a global provider of integrated performance analysis and service assurance systems that enable the development and deployment of next-generation networking technology such as Internet telephony, broadband services, 3G wireless, global navigation satellite systems, and network security equipment. Spirent Communications' solutions are used by more than 1,700 customers in 30 countries, including the world's largest equipment manufacturers, service providers, enterprises and governments. Based in Sunnyvale, CA, Spirent Communications has 1,800 employees worldwide. Spirent Communications plc Ordinary shares are traded on the London Stock Exchange (ticker: SPT) and on the New York Stock Exchange (ticker: SPM; CUSIP number: 84856M209) in the form of American Depositary Shares ("ADS"), represented by American Depositary Receipts, with one ADS representing four Ordinary shares. Spirent Communications' sales to the United States government are made through Spirent Federal Systems Inc. www.spirentfederal.com

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