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overview
 CISCO - Overview of the Session Initiation Protocol
Session Initiation Protocol (SIP) is the Internet Engineering Task Force's (IETF's) standard for multimedia conferencing over IP. SIP is an ASCII-based, application-layer control protocol (defined in RFC 2543) that can be used to establish, maintain, and terminate calls between two or more end points.
Like other VoIP protocols, SIP is designed to address the functions of signaling and session management within a packet telephony network....
preview:
http://www.cisco.com
10/13/2008
Tags: sip
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