International Journal of Future Computer and Communication (IJFCC)
VoIP is a technology that is popular all over the world for its cost effectiveness. Asterisk is an open source, converged telephony platform that supports all the protocols of VoIP. They establish this VoIP based asterisk on Ubuntu 11.10 (a Linux-based OS) which allow them to make unlimited free calls with the help of IP phone or traditional phone within a LAN/Can without internet connection. Wi-Fi is often presented as a model of successful unlicensed frequency spectrum deployment. For wireless communication, they extend their VoIP based to Wi-Fi technology, with the name Wi-Fi.