CSG Systems International, Inc. EXTENDS contract with Comcast Through 2012

FOR IMMEDIATE RELEASE
(Free-Press-Release.com) July 14, 2008 --

CSG Systems International, Inc. (Nasdaq: CSGS), a leading provider of customer interaction management solutions, today announced that it has entered into a restated and amended multi-year Master Subscriber Management System Agreement (the “Agreement”) with Comcast that extends CSG’s current contractual relationship with the nation's leading provider of entertainment, information and communications products and services through December 31, 2012, which constitutes a four-year extension to CSG’s current contract with Comcast. The expected scope of the customer care and billing products and services to be utilized by Comcast under the new Agreement is consistent with the previous contract.

Additional details regarding the terms of this Agreement are included in CSG’s Form 8-K dated July 14, 2008. A copy of the Agreement (with confidential information redacted) will be filed as an exhibit to CSG’s Form 10-Q for the quarter ended September 30, 2008.

Financial Guidance

As indicated when CSG last provided financial guidance on April 22, 2008, CSG’s 2008 guidance included the expected impact of the Comcast and DISH Network renewal discussions. This Agreement fell within the range of CSG’s previous expectations, and the expectations around the DISH Network renewal are unchanged at this time. Therefore, CSG is reaffirming its previously communicated guidance for 2008.

Conference Call
CSG will host a conference call on Monday, July 14, 2008, at 10:00 a.m. EDT, to discuss the Agreement in more detail. To reach the conference, dial (303) 275-2170 and ask the operator for the CSG Systems International Inc. conference call, Roger Metz, chairperson.
A replay of the conference call will be available until midnight ET on Monday, July 21, 2008, and can be accessed by dialing (303) 590-3000, passcode 11117321#. In addition, this call will be simulcast and archived on the Internet at www.csgsystems.com (Real Player required).

Forward-Looking Statements

This news release contains forward-looking statements as defined under the Securities Act of 1933, as amended, that are based on assumptions about a number of important factors and involve risks and uncertainties that could cause actual results to differ materially from what appears in this news release. These factors include, but are not limited to: 1) the concentration of approximately two-thirds of CSG’s revenues with four clients; as a result, the loss of business from any one of those clients could potentially have a material adverse impact to CSG’s financial results; 2) continued market acceptance of CSG’s Advanced Convergent Platform (ACP) and related products and services; 3) CSG's ability to continuously develop and enhance products in a timely, cost-effective, technically advanced and competitive manner; 4) CSG’s dependency on the North American communications industry; as a result, key market factors such as further industry consolidation, new market entrants that may not be clients of CSG, economic conditions, and/or the financial status of CSG clients may affect CSG’s ability to maintain and expand market share; 5) increasing competition in our market from companies of greater size and with broader presence in the communications sector, thus exerting greater influence over client buying decisions; 6) CSG’s ability to successfully integrate and manage acquired businesses, technology or assets to achieve the expected strategic, operating and financial goals established for such acquisitions; 7) CSG’s continued ability to protect its intellectual property rights; and 8) CSG’s dependency on a variety of computing environments and communications networks, thus subjecting CSG to the risks of extended interruptions, outages, unauthorized access and corruption of data. This list is not exhaustive and readers are encouraged to review the additional risks and important factors described in CSG's reports on Forms 10-K and 10-Q and other filings made with the SEC.