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Common SIP Functions and Call Features

This section describes several common SIP functions and call features including:

• Registration Overview

• SIP Redundancy

• SIP Support for TCP

• Reporting/Generating SIP Headers or Parameters

• Reporting/Generating SIP Responses

Session-Initiation Protocol. A signaling protocol used for establishing sessions in an IP network. A session could be a simple, two-way telephone call, or it could be a collaborative multi-media conference session.