SIP – Session Initiation Protocol

Overview SIP (Session Initiation Protocol) is a signaling protocol for multimedia session control which was published by the Internet Engineering Task Force (IETF) in 1999.SIP end-points negotiates the media parameters using Session Description Protocol (SDP). Session Description Protocol allows the SIP terminals or application to negotiate the type of media (audio, video, or data), transport protocol (RTP), and media encoding method. SIP boundaries, Components and Functions SIP is actually an application layer protocol for establishing, manipulating, and tearing down sessions. SIP’s main objective is to help session originators deliver invitations to the potential session participants. SIP serves four major...

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