Evolving Systems Taps AT&T Business Solutions for Global Networking Services

New Contract Expands Two-Way Business Relationship between the Two Companies

Englewood, Colorado, January 8, 2009


AT&T Business Solutions announced today that Evolving Systems (NASDAQ-EVOL) has signed a three-year contract for a global networking solution and voice services linking company sites in the U.S., India and the United Kingdom.

Evolving Systems, a leading provider of software solutions and services to the wireless, wireline and Internet Protocol (IP) carrier market, will begin using AT&T Virtual Private Network (VPN), which is an ultra-available, fully managed global VPN network, to streamline its voice and data communications across three of its core company locations. Evolving Systems expects the new network to improve operational efficiencies through information sharing, collaboration and IP telephony.

Additionally, as part of a mutual relationship, AT&T operating companies use Evolving Systems' NumeriTrack solution to support number inventory management for their wireless and wired business.

"AT&T Business Solutions is providing a comprehensive and cost-effective global networking solution that is designed to aid in the production of our core business products," said Thad Dupper, president and chief executive officer of Evolving Systems. "Similarly, Evolving Systems is a valued supplier to AT&T operating companies, providing efficient number porting and management solutions in support of their wireless and wired portfolio."

The new contract expands and extends an existing relationship between the two companies that spans more than a decade.

About Evolving Systems
Evolving Systems, Inc. (NASDAQ-EVOL) is a provider of software and services to more than 70 network operators in over 40 countries worldwide. Its portfolio includes market-leading products for Service Activation, Service Verification, Process Management, Dynamic SIM Allocation, Number Portability, Number Inventory and Mediation. Founded in 1985, the Company has headquarters in Englewood, Colorado, with offices in the United Kingdom, Germany, India and Malaysia. Further information is available on the web at www.evolving.com.

About NumeriTrack®
NumeriTrack® enables operators to store, assign, track and manage their telephone numbers for all services. It helps to improve customer service by providing a centralized, high performance system with instant access to accurate numbering. The NumeriTrack solution also helps to lower operational cost and effort by automating manual processes and integrating seamlessly with other OSS processes such as billing, activation and number portability. The solution provides extensive capabilities for forecasting, tracking and reporting number utilization to enable operators to manage their numbers proactively and meet regulatory requirements such as Number Portability.

About AT&T
AT&T Inc. (NYSE:T) is a premier communications holding company. Its subsidiaries and affiliates, AT&T operating companies, are the providers of AT&T services in the United States and around the world. Among their offerings are the world's most advanced IP-based business communications services and the nation's leading wireless, high speed Internet access and voice services. In domestic markets, AT&T is known for the directory publishing and advertising sales leadership of its Yellow Pages and YELLOWPAGES.COM organizations, and the AT&T brand is licensed to innovators in such fields as communications equipment. As part of its three-screen integration strategy, AT&T is expanding its TV entertainment offerings. In 2008, AT&T again ranked No. 1 on Fortune magazine's World's Most Admired Telecommunications Company list and No. 1 on America's Most Admired Telecommunications Company list. Additional information about AT&T Inc. and the products and services provided by AT&T subsidiaries and affiliates is available at http://www.att.com.

© 2009 AT&T Intellectual Property. All rights reserved. AT&T, the AT&T logo and all other marks contained herein are trademarks of AT&T Intellectual Property and/or AT&T affiliated companies. All other marks contained herein are the property of their respective owners.

Note: This AT&T news release and other announcements are available as part of an RSS feed at www.att.com/rss.