Concord Expands Mobile Wireless Service Assurance Solution.

Business Editors/High-Tech Writers

MARLBORO, Mass.--(BUSINESS WIRE)--March 15, 2004

Company Leverages Leadership in Network Performance Management to

Assure Delivery of High Quality Mobile Data Services

Concord Communications, Inc. (Nasdaq: CCRD), an industry leader in optimizing IT services to drive business success, today extended its support for mobile wireless service providers seeking to assure delivery of high quality mobile data services, such as web access, instant-messaging, and email. Specifically, the company announced that it has certified for eHealth(R) Ready designation certain mobile wireless network devices from Nortel Networks, Starent Networks, UTStarcom, and other equipment vendors.

Concord Communications' eHealth(R) Suite enables mobile wireless carriers to proactively assure data service delivery to their end users. Service assurance is critical to success for wireless carriers rolling out a host of new mobility solutions as a core part of their strategy to increase revenue and reduce churn. In fact, according to The Yankee Group, the market for wireless data services is projected to spike to $152 billion worldwide by 2007, representing more than one quarter of total mobile wireless carrier revenue that year.

"For wireless carriers around the globe, the race is on to provide the most compelling new data services," stated Philip Marshall, Director of The Yankee Group's Wireless & Mobile Technologies Advisory Service. "Adoption rates for these services, however, will be heavily influenced by their availability and reliability. To assure the quality of new data services carriers must manage their entire service delivery system with an integrated solution. Given its heritage managing core data networks, Concord makes an excellent partner for wireless carriers rolling out these new offerings."

Concord Delivers Trusted Service Assurance Solutions

Concord's eHealth Suite supports mobility by monitoring the availability, reliability, and responsiveness of carriers' core data and mobile IP access networks, as well as the data services provided over those networks. This forward-looking service assurance solution allows carriers to identify and resolve service degradation before it impacts end users.

Concord's eHealth Suite also enables carriers to evaluate the quality of each service in comparison to historical performance norms, providing the information needed to make intelligent capacity planning decisions. These decisions are increasingly important as providers seek to control capital expenditures while keeping up with double-digit growth in demand for data services.

"Today, 23 of the world's 24 largest telcos trust Concord to monitor their service delivery systems," stated Michael Marks, Director of Service Provider Market Development, at Concord Communications. "By extending into the mobile IP platform, Concord is able to offer its mobile wireless customers a true end-to-end service assurance solution. Our eHealth Suite enables carriers to monitor the quality of their mobile data services, as well as the reliability of the underlying core data network and mobile IP network supporting them."

With most of the world's largest service providers as customers, Concord is well recognized as a leader in service assurance and network performance solutions. The foundation for Concord's end-to-end service assurance solution is management of the underlying network. To date, Concord has completed eHealth Ready certification testing for more than 900 devices from 100 different vendors. In the mobile wireless market, Concord has certified support for a broad range of devices including: Nortel Networks' Shasta PDSN (versions 2.2, 2.2.1, and 3.0), Starent Networks' ST16 PDSN (version 2.0 and 3.0); and UTStarcom PDSN (Total Control(TM) 1000 Shelf and Total Control(TM) 2000 Shelf) and IWF.

About Concord Communications, Inc.

Concord Communications, Inc. (Nasdaq: CCRD) provides an integrated solution that enables companies to map their IT services to business needs, measure their actual end-user experience, and manage their applications, systems, and networks. More than 3000 companies worldwide, including 23 of the world's 24 largest service providers, rely on Concord's eHealth(R) Suite, and its components, to optimize IT services to drive business success. Based in Marlboro, Mass., Concord maintains offices around the globe, and can be found on the web at www.concord.com.

Concord Communications, Inc., the Concord logo and eHealth are trademarks of Concord Communications, Inc. All other trademarks are the property of their respective owners.