CSG Systems International, Inc. ( NASDAQ: CSGS), the trusted global partner to launch and monetize digital services, today announced that its solutions for wholesale partner settlements and data mediation have been named market leaders in the Analysys Mason Revenue Management Systems Worldwide Market Shares report. This annual report provides market share data for Communication Service Provider (CSP) spending on telecommunications-specific revenue management software systems and related services and also includes key information about the leading vendors in the market. The report ranked CSG's WBMS wholesale partner management, optimized traffic trading and routing, billing and settlement solution as the number one partner settlement and interconnect product in worldwide market share. WBMS (Wholesale Business Management Solution) is the uncontested world leader in partner settlement by number of customers, volume or revenue. It has a large and diverse customer base of approximately 300 of the world's leading CSPs in 120 countries. The solution offers a comprehensive yet cost-effective approach to simplify the control of complex interconnect agreements and processes for optimum revenue and profitability. In addition, CSG Intermediate™ network data mediation solution ranked third in worldwide market share by revenue. "CSG has a strong mediation platform, with the scale needed to support high-growth, large mobile operators in emerging markets," said Analysys Mason Senior Analyst John Abraham. CSG Intermediate offers a convergent mediation solution serving large mobile, fixed/broadband, cable, logistics, and financial services customers worldwide. The solution is proven to handle massive data transaction volumes quickly, securely and accurately. About CSG International CSG International (NASDAQ: CSGS) is the trusted global partner to help clients launch and monetize communications and entertainment services in the digital age. Leveraging 30 years of experience and expertise in voice, video, data and content services, CSG delivers market-leading revenue management and customer interaction solutions in licensed and managed service models. The company drives business transformation initiatives for the majority of the top 100 global communications service providers, including AT&T, Charter Communications, Comcast, DISH, ESPN, Media-Saturn, Orange, Reliance, SingTel Optus, Telefonica, Telstra, Vodafone, Vivo and Verizon. For more information, visit our website at www.csgi.com.