BRUSSELS, Belgium, September 30 /PRNewswire/ --

- Spirent TestCenter(TM) 3000 Series Offers High Performance End-to-End Layer 2-7 Triple-Play Testing at Line Rate on Single Gigabit Port

To address the increasing complexity of testing multi-play networks and multi-platform technologies, Spirent Communications plc (LSE: SPT), today launched the industry's most innovative high-performance, high-density 12 port, Layer 2-7 modules for its award-winning Spirent TestCenter(TM) platform, which has also been selected as the finalist for the 2008 IEC InfoVision Award. Unlike competitive solutions, the Spirent TestCenter 3000 Series modules are specially designed to offer network equipment manufacturers and service providers a robust and scalable test platform with a flexible user experience for conducting end-to-end Layer 2-7 triple-play testing at line rate through a single gigabit port.

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Today's routers and switches have become increasingly more multi-functional with advanced security features and application awareness. Testing with upper layer protocols (data, video and voice) becomes essential to improve the quality of these products. To meet these needs, the Spirent TestCenter 3000 Series modules provide customers with the ability to showcase the distinguishing capabilities of these complex network elements.

"Service provider networks generate revenue by efficiently and securely transmitting data, voice, video, and wireless applications," said Michael Howard, principal analyst, Infonetics Research. "These networks also need to provide for evolving traffic patterns, new services, and optimized application performance. Providers can no longer depend only on bandwidth and speed for differentiation--carrier business cases can only succeed when engineers have test and measurement tools that support applications and services on next-gen networks."

Built on the Spirent TestCenter architecture, test engineers are now able to characterize complex user experience scenarios at line rate while still leveraging the benefits of a highly scalable and stable solution which accommodates comprehensive routing and a mix of access protocols on a single platform. For the first time, users have a comprehensive set of run time results to effectively troubleshoot and quickly diagnose performance issues.

"Spirent continuously looks for the best ways to address the ever changing needs of service providers and network equipment manufacturers who understand the strategic role testing plays in today's competitive business environment," said Tim Jefferson, general manager of Converge Core Solutions at Spirent. "No other solution on the market tackles the high-performance needs of these users while simultaneously supporting the scale and density requirements necessary for complex stateful testing."

The award winning Spirent TestCenter solution is an integrated test platform that accelerates conformance, functional and performance testing for converged networks. This platform comprises hardware and software components used by service providers, network equipment manufacturers and large enterprises to evaluate network devices and configurations for development, quality assurance, technical marketing, customer service and production.

The capabilities of the Spirent TestCenter 3000 Series modules will demonstrated at Spirent Booth # 126 at Broadband World Forum 2008 in Brussels, Belgium from September 30 to October 2. For more information please visit www.spirent.com/go/STC

About Spirent Communications plc

Spirent Communications (www.spirentcom.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 1,300 employees worldwide.

Spirent Communications plc Ordinary shares are traded on the London Stock Exchange (ticker: SPT). The Company operates a Level 1 American Depositary Receipt ("ADR") programme with each ADR representing four Spirent Communications plc Ordinary shares. The ADRs trade in the US over-the-counter ("OTC") market under the symbol SPMYY and the CUSIP number is 84856M209. Spirent Communications' sales to the United States government are made through Spirent Federal Systems Inc. www.spirentfederal.com.

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

Contact Sailaja Tennati Spirent Communications Direct Tel +1-770-432-3225 +1-240-291-6044 E-mail sailaja.tennati@spirent.com

This document may contain forward-looking statements which are made in good faith and are based on current expectations or beliefs, as well as assumptions about future events. You can sometimes, but not always, identify these statements by the use of a date in the future or such words as "will", "anticipate", "estimate", "expect", "project", "intend", "plan", "should", "may", "assume" and other similar words. By their nature, forward-looking statements are inherently predictive and speculative and involve risk and uncertainty because they relate to events and depend on circumstances that will occur in the future. You should not place undue reliance on these forward-looking statements, which are not a guarantee of future performance and are subject to factors that could cause our actual results to differ materially from those expressed or implied by these statements. The Company undertakes no obligation to update any forward-looking statements contained in this document, whether as a result of new information, future events or otherwise.

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Sailaja Tennati of Spirent Communications, +1-770-432-3225, +1-240-291-6044, sailaja.tennati@spirent.com; Photo: http://www.newscom.com/cgi-bin/prnh/20080909/CLTU016LOGO