CSG Systems International, Inc. [2] (NASDAQ: CSGS [3]), a global provider of software and services-based business support solutions that help clients generate revenue and maximize customer relationships, invites you to participate in a conference call on Tuesday, February 5, 2013, at 5:00 p.m. Eastern Time to discuss the company's fourth quarter and year end 2012 earnings results.

The one-hour conference call will feature Peter Kalan, CSG President and Chief Executive Officer, and Randy Wiese, CSG Chief Financial Officer. To reach the conference, dial 1-877-941-0844 and ask the operator for the CSG International conference call and Liz Bauer, chairperson.

Click here to join a webcast of CSG’s earnings call [4] in live or archived format. A replay of the conference call will also be available until midnight Eastern Time on March 7, 2013, and can be accessed by calling 1-800-406-7325 and access code of 4581142.

About CSG International

CSG Systems International, Inc. [5] (NASDAQ: CSGS [6]) is a market-leading business support solutions and services company serving the majority of the top 100 global communications service providers, including leaders in fixed, mobile and next-generation networks such as AT&T, Comcast, DISH Network, France Telecom, MasterCard, Orange, T-Mobile, Telefonica, Time Warner Cable, Vodafone, Vivo and Verizon. With over 25 years of experience and expertise in voice, video, data and content services, CSG International offers a broad portfolio of licensed and Software-as-a-Service (SaaS)-based products and solutions that help clients compete more effectively, improve business operations and deliver a more impactful customer experience across a variety of touch points. For more information, visit our website at www.csgi.com [7].