IP PBX is a new generation telephony switching system for corporations. It is different from the traditional PBX because of the distributed control characteristics presented by the related call control and peripheral components, which are connected through IP network. TL has undergone the development of an IP PBX prototype system. This article describes how to make use of emulation program, debugger and VoIP Testing tools to measure the performance, identify the system issues and find out the solutions for system enhancement for the prototype system. The results of performance tests for the enhanced IP PBX system based on different server platforms are also presented.
IP PBX VoIP (Voice over IP) SIP (Session Initiation Protocol)