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Session Initiation Protocol (SIP)

This chapter provides a description of the basic Session Initiation Protocol (SIP) and the protocol extensions that are supported by the current SIP application. To find the applicable Request For Comments (RFC) document, go to http://www.ietf.org/rfc.html and enter the RFC number.

This chapter contains information on:

Basic Protocols—All the basic calling functionality described in the SIP specification is supported. Transfer is included in the basic SIP support.

Protocol Extensions—Extensions add features to SIP that are applicable to a range of applications, including reliable 1xx responses and session timers.

For information on supported RFC’s and Internet drafts, refer to the following section, RFC and Internet Draft Support.

This chapter also describes:

Request Support

Header Support

Response Support

Hold Implementation

Reliability of Provisional Responses

Transfer

Third Party Call Control

SIP for Instant Messaging and Presence Leveraging Extensions

Shared Call Appearance Signaling

Bridged Line Appearance Signaling

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Polycom 1725-11530-310 manual Session Initiation Protocol SIP