The call-in numbers for the conference call are 1-800-561-2813 for domestic toll free and 617-614-3529 for international. The passcode is 17866762. A telephone replay will be available through May 23, 2007, and can be accessed by calling 1-888-286-8010 or 617-801-6888, passcode 35131218.
To access a live Webcast of the call, please visit Evolving Systems' website at http://www.evolving.com. A replay of the Webcast will be accessible at that website through June 9, 2007.
About Evolving Systems(R)
Evolving Systems, Inc. (Nasdaq: EVOL) is a provider of software and services to more than 50 network operators in over 40 countries worldwide. Its portfolio includes market-leading products for Activation, Number Portability, Number Inventory and Mediation. Founded in 1985, the Company has headquarters in Englewood, Colorado, with offices in the United States, United Kingdom, Germany, India and Malaysia. Further information at http://www.evolving.com

