If your work involves the development and operation of voice or data networks, this ground-breaking book gives you the thorough understanding of SIP (Session Initiation Protocol) you need. It shows you how this revolutionary protocol for IP Telephony provides a highly-scalable and cost-effective way to offer new telecommunication feature sets, helping you design your ?next generation? network and develop new applications and software stacks. Discussions include SIP as a key component in the Internet multimedia conferencing architecture, request and response messages, devices in a typical network, types of servers, SIP headers, comparisons with existing signaling protocols including H.323, related protocols SDP and RTP, and the future direction of SIP. Detailed call flow diagrams illustrate how this technology works with other protocols.
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