SPIRENT COMMUNICATIONS PLC - INVITATION TO RESULTS PRESENTATIONWEBCAST

London UK - 28 February 2008: Spirent Communications plc (LSE: SPT), a leading communications technology company, announces that it intends to release its preliminary results for the year to 31 December 2007 on Thursday 28 February 2008 before the opening of the UK market. The Company will host a results presentation at 09.15 for 09.30 UK time on Thursday 28 February 2008. A simultaneous webcast of the presentation will be available in the Investors section of the Spirent Communications plc website at www.spirent.com. Registration for the webcast can also be accessed by the following link, http://w.on24.com/r.htm?e=103805&s=1&k=10D8EEBA0A364158425E8E001F8C401D. - ends - Enquiries Eric Hutchinson, Chief Financial +44 (0)1293 Officer 767676 Andrew Dowler/Harriet Keen Financial Dynamics +44 (0)20 7831 3113 About Spirent Communications plc Spirent Communications plc is a leading communications technology company focused on delivering innovative systems and services to meet the needs of customers worldwide. We are a global provider of performance analysis and service assurance solutions that enable the development and deployment of next-generation networking technologies such as broadband services, Internet telephony, 3G wireless and web applications and security testing. The Systems group develops power control systems for specialist electrical vehicles in the mobility and industrial markets. Further information about Spirent Communications plc can be found at www.spirent.com. 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 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. Cautionary statement 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.