This document discusses the benefits of a call center and its management information system (MIS). It describes the architecture of call center systems from the 1990s to 2005, how data is collected in real-time and stored, and the types of reports that are generated from the collected data including real-time, historical, and customizable reports. Examples of real-time and historical reports are provided. The document concludes by mentioning who uses call center systems and MIS.