Spirent Communications : Notice of 2015 Half Year Results Presentation

SPIRENT COMMUNICATIONS PLC

Notice of 2015 Half Year Results Presentation

London, UK - 14 July 2015 : Spirent Communications plc ("Spirent" or the "Company") (LSE: SPT), a leading communications technology company, will announce its half year results for the six months ended 30 June 2015 on 6 August before the opening of the UK market.

The Company will host a results presentation at 09.30am UK time on Thursday 6 August 2015 at UBS Limited, 1 Finsbury Avenue, London EC2M 2PP.

A simultaneous webcast of the presentation will be available in the Investors section of the Spirent Communications plc website http://corporate.spirent.com/.

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About Spirent Communications plc

Spirent Communications plc is a global leader in test and measurement inspiring innovation within development labs, communication networks and IT organisations. We enable today's communication ecosystem as well as tomorrow's emerging enterprises to deploy life enriching communications networks, devices, services and applications. Further information about Spirent Communications plc can be found athttp://corporate.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 ADRs are quoted on the Pink OTC Markets electronic quotation service which can be found athttp://www.otcmarkets.com/otc-pink/home.

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 regarding forward-looking statements

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.