PROPOSED SYSTEM FOR FREE CALLS OVER WI-FI NETWORK USING VOIP AND SIP: ANDROID APPLICATION

Today’s era of technological advancement has made humans inclined to a great extent towards communication and dependent on free and procurable Internet services. Free and wide availability of Internet services has made communication feasible and more sustainable to mankind. In this paper, we have proposed the design of a Session Initiation Protocol (SIP) based client that uses Voice over Internet protocol (VoIP) at the core level, for a dedicated organization. This allows the stakeholders of the organization to enable and use the facility of audio calls over a public and private network. Peer-to-peer calling facility over Wi-Fi will help in reduction of bills over time. The outcome of this paper will be a Devoted, Dedicated and Dimensional (D3) client application, on Android platform.