Application Layer Signaling Protocol for Instant Messaging
Khan, Md. Abbas Ali
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Abstract : The Session Initiation Protocol (SIP) is an end-to-end client server session signaling protocol for initiating, managing and terminating voice and video sessions across packet networks. IETF is driven this protocol that meeting world of telecommunication based function. SIP based functions are scalable and easy to connect and control, available accessible, affordable and using one pipe to voice and data coverage that recommended extra savings, discarding the cost of distinct phone and data networks. Smartphone, soft-phone, computer and other IP accessible devices can communicate through SIP applications with the application software that contain essential attribute like call forwarding, busy and conference calling. SIP sessions involve one or more participants and can use unicast or multicast communication. The aim of this paper is to focuses the involvement of SIP in an Instant Messaging that used IP (Internet Protocol) telephony technology is a consistent communication choice operates on organized standardized communication protocols and also many other inctercommunication developed protocols are involved with Instant Messaging that based on SIP.