Spirent Communications Boosts OSPexpo 2003 with Speakers, Products, Partnerships.

Business Editors/High-Tech Writers

OSPexpo 2003

ROCKVILLE, Md.--(BUSINESS WIRE)--Nov. 11, 2003

Service Assurance Leader Expands Commitment to Field Operations

with New OSS and Test Set Family

Spirent Communications(TM) (NYSE:SPM)(LSE:SPT), a worldwide provider of integrated performance analysis and service assurance systems for next-generation network technologies, is showcasing its participation in OSPexpo 2003 with announcements of significant partnership initiatives, key product and solution introductions, and public addresses to event delegates.

Spirent's initiatives and products being announced at OSPexpo 2003 include:

-- A strategic partnership between Spirent and a.p.solve -- a

pioneer in the development of intelligent field force

management solutions -- to provide integrated workforce

management solutions that help carriers transform their

labor-intensive field force activities into unified, highly

cost-effective, customer-centric operations;

-- Introduction of FieldOp(TM), the industry's first

comprehensive integrated suite of Operations Support System

(OSS) software, remote and field test hardware for managing

the full range of field installation, service provisioning,

and maintenance activities required of large

telecommunications service providers;

-- Introduction of CopperMax(TM)/OSP, a new line of intelligent

field test sets that consolidate the functions of several

testers into a single, highly affordable portable unit that

features wireless connectivity to and integration with the

carrier's back-office service management systems; and

-- A presentation on "Next-Generation Field Test: Driving a

Revolution in MTTR and Repeat Rates," by Senior Manager Sean

Yarborough that outlines an intelligence sharing architecture

which assures a single technician can receive the right

information at the right time for the right problem, and act

on it in near-real-time to preserve the carrier's customer

responsiveness. (http://www.ospmag.com/osp_expo_03/seminars/regular/index.asp#NEXTGEN)

Spirent is a leading provider of service assurance solutions to the world's telecom service providers. Within the United States, Spirent's advanced remote probes, OSSs, and professional services are deployed in the networks of the four largest incumbent service providers, the two largest independent service providers, and seven of the top ten wireless service providers, with a growing list of global service providers in the past two years. The company's solutions assure an estimated 80 per cent of all U.S. private line and DSL circuits.

About Spirent Communications

Spirent Communications (www.spirentcom.com) is a worldwide provider of integrated performance analysis and service assurance systems for next-generation network technologies. Spirent's solutions enable customers to develop and deploy network equipment and services more economically and efficiently by emulating real-world conditions in the lab and assuring end-to-end performance of large-scale networks.

Spirent Communications is a wholly owned business group of Spirent plc (www.spirent.com), 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).

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.

This press release may contain forward-looking statements that are based on current expectations or beliefs, as well as assumptions about future events. By their nature, forward-looking statements are inherently predictive, 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 Spirent's actual results to differ materially from those expressed or implied by these statements. These risks include the risks described from time to time in Spirent's SEC periodic reports and filings. We undertake no obligation to update our forward-looking statements, whether as a result of new information, future events or otherwise.