This document discusses infrastructure decisions for an outbound call center. It begins with a brief history of call centers and an overview of their evolution and technology advances. It then describes the two main types of call centers - inbound and outbound. For outbound call centers, it outlines the options of manual dialing versus predictive dialing technology. The rest of the document provides details on the components, types, advantages and cost considerations of predictive dialing and hosted solutions. It concludes by discussing Arbayes Call Center's decision to test a hosted predictive dialing solution and presents sample reports comparing the performance under the new versus old infrastructures.