Abstract: This project is designed to develop a communication system where we can make Wi-Fi call within a specified LAN along with smart reservation system.The LAN is defined by Wi-Fi router, wireless accesspoint and raspberry pi.Raspberry pi act as the server of asterisk which performthe functions of a conventional PBX. This system is developed for institutional or organization point of view so that we could connect various departments and section under a controlling unit.

Keywords: Wi-Fi, asterisk, LAN.