Asterisk as a base for building a call centre
"Asterisk provides an open framework that can be used to craft any solution that works best for the requirements you have" Steve Sokol, Director of Strategic Programs at Digium
"Asterisk has long been described as the Swiss Army Knife of telecommunications. Asterisk 13 represents the next evolutionary step with phenomenal API's that enable the build of a call centre application that best fits a business." Matt Jordan, Director of Engineering for Asterisk