Evolving Systems Sponsors Telecommunications Conference.

Next-Generation OSS Conference Focuses on the Changing Operational Environment

And Challenges Facing the Telephony and Internet Industries

ENGLEWOOD, Colo., Sept. 23 /PRNewswire/ -- Evolving Systems, Inc. (Nasdaq: EVOL), an enabler of converging, new-generation telephony and Internet services, is co-sponsoring a next-generation OSS conference that focuses on the changing operational environment and challenges facing the telephony and Internet industries. Presented by ICM Conferences, the event takes place September 23-24 at the Hyatt Regency hotel in Chicago.

On Wednesday, Sept. 22, Evolving Systems presented a pre-conference workshop entitled, "Use of Workflow to Enable Evolving Next-Generation OSS." The workshop is designed to teach attendees about the benefits of workflow-based solutions, workflow engine capabilities and other workflow-related issues, and it included presentations from Evolving Systems' colleagues InConcert and Neon. The conference also features presentations from Ameritech, AT&T, MCI Worldcom, Sprint and other industry leaders.

"Evolving Systems is among the leaders in developing and implementing cost-effective and comprehensive OSS solutions," said Kevin Pool, director of enterprise workflow solutions for Evolving Systems. "This conference is one of the best events to showcase Evolving Systems' leading-edge OSS expertise and it gives us an excellent opportunity to share our knowledge with other telecommunications industry professionals."

About Evolving Systems

Evolving Systems builds software infrastructure that powers telephony and Internet companies' ability to provide the new generation of enhanced and broadband services. Founded in 1985, Evolving Systems develops and integrates products and services that solve complex problems for some of the world's top telecommunications companies. Evolving Systems' areas of expertise include service-order entry and automated provisioning systems, wireless data applications, network management, billing, local number portability solutions, Voice over IP technology and other enhanced services. The company offers a comprehensive training curriculum and is involved in setting standards in the telephony industry.

For more information on Evolving Systems, visit the company's Web site at www.evolving.com. The corporate headquarters are located in Englewood, Colorado, at 9777 Mount Pyramid Court, 80112, phone 303-802-1000.

In accordance with Section 21E of the SEC Act of 1934, as amended, this release contains forward-looking statements and should be read in conjunction with certain risk factors. Risk factors involved in investing in Evolving Systems are defined in the Company's Registration Statement on Form S-1 (No. 333-43973) which was declared effective by the SEC on May 11, 1998 and Form 10-K filed with the SEC on March 31, 1999. The conference sponsorship mentioned in the release may have no material impact on the company's future earnings.

The Evolving Systems name and logo are trademarks of Evolving Systems, Inc.