Paper Title
Asterisk Based Communication System

Abstract
An Asterisk Based Communication System is a complete telephony system that provide free of cost, without sim-card i.e. wireless calling. In order to make these measurement we have use the open source operating system such as Cent-OS and some packages, by using this operating system and packages we can implement our Asterisk based communication server i.e. also known as an IP-PBX server. By implementing this server we can make wireless communication in the range of Wi-Fi. The traditional EAPBX system is overcome by this IP-PBX System. It is advance technology of communication. Keywords— PSTN, EPABX, IP-PBX, VOIP.