MILLENNIUM DIGITAL MEDIA SYSTEMS ADDS SUPPORT FOR HIGH SPEED DATA SUBSCRIBERS AND ONLINE PAYMENTS THROUGH CSG SYSTEMS

ENGLEWOOD, Colo. (April 3, 2007) ¾ CSG Systems (NASDAQ: CSGS), a leading provider of customer care and billing solutions, today announced that Millennium Digital Media Systems, a fast-growing broadband services company serving more than 120,000 customers, has expanded its use of CSG’s solutions.

Millennium will now use the CSGÒ Advanced Convergent Platform (ACP) to provide customer care and billing service to its high-speed data subscribers, in addition to its video subscribers already served by the platform. CSG ACP is a customer-centric billing and customer care platform that can help cable operators achieve a consistent view of each customer across all touch points, from the Web, to the call center to the field technician and the settop box.

Millennium has also purchased CSG Care ExpressÒ to offer Electronic Bill Presentment and Payment (EBPP) options to customers. CSG Care Express allows customers to view, manage and pay bills over the Internet and virtually eliminates manual processes carried out by customer service representatives when taking orders and upgrading services. Care Express offers convenience for the consumer and saves expense for the operator as these customers do not have to contact the call center for routine business.

More than 3,000 new users sign up to use Care Express services each day across CSG’s customer base. The solution has a greater than 8 percent average adoption rate, significantly higher than that of the cable industry overall.
Millennium will use Care Express to provide online statement viewing and payment capabilities to its subscribers of basic and premium digital cable television services and its CableSpeed high-speed cable modem service across five states.

“We offer our customers tremendous variety and value as they choose entertainment, information, and communication services,” said Gil Nichols, Senior Vice President, Operations, Millennium. “But in addition to variety of services, it is excellent customer care that will set us apart and CSG’s customer care and billing solutions help us deliver service at the highest level.”

“We have grown with Millennium over the past ten years of our business partnership and are pleased to take these next steps with them as they continue to raise the bar on the service they offer their customers,” said Jay McCracken, Senior Vice President of Strategic National Accounts, CSG Systems.

CSG has more than 23 clients live on its Care Express solution today including Charter Communications, Time Warner Cable, Bright House Networks and Mediacom.

About CSG Care Express
CSG Care Express enables customers of broadband service providers and direct broadcast satellite providers (DBS) to perform self-care functions such as viewing, managing and paying bills over the Internet. Care Express works with CSG’s ACP (Advanced Convergent Platform) core billing solution and offers three fully-integrated options - an Electronic Bill Presentment and Payment (EBPP) module, a Self-Care module and a Consolidator module, managed in CSG Systems’ state of the art service bureau facility. More than five million customers use Care Express on a regular basis to pay bills, manage account information and add or change services without interacting with a call center.

About Millennium Digital Media Systems
Millennium provides telecommunications services including voice, video and data to approximately 120,000 residential and commercial customers in Maryland, Michigan, Washington and Oregon. The Company is headquartered in St. Louis, MO.

About CSG Systems
Headquartered in Englewood, Colorado, CSG Systems International (Nasdaq: CSGS) is the leading provider of outsourced billing, customer care and print and mail solutions and services supporting the North American cable and direct broadcast satellite markets. CSG’s solutions support some of the world’s largest and most innovative providers of bundled multi-channel video, Internet, voice and IP-based services. CSG’s unique combination of solutions, services and expertise ensure that cable and satellite operators can continue to rapidly launch new service offerings, improve operational efficiencies and deliver a high-quality customer experience in a competitive and ever-changing marketplace. For more information, visit our website at www.csgsystems.com

For more information, contact:
Elise Brassell, Media Relations
CSG Systems
Phone: (303) 804-4962
E-mail: elise_brassell@csgsystems.com

Roger Metz, Investor Relations
CSG Systems
Phone: (303) 804-4082
E-mail: roger_metz@csgsystems.com