Cisco Unified Communications Manager SIP Line Messaging Guide (Standard)
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This document describes the implementation of the Session Initiation Protocol (SIP) for line side devices in Cisco Unified CM.


This document provides information for developers, vendors, and customers who are developing applications or products that integrate with Cisco Unified CM using SIP messaging.


This document consists of the following chapter.

Chapter Description

Provides an overview of SIP line messages and standards compliance.


This document uses the following conventions.

Convention Description

boldface font

Commands and keywords are in boldface.

italic font

Arguments for which you supply values are in italics.

[ ]

Elements in square brackets are optional.

{ x | y | z }

Alternative keywords are grouped in braces and separated by vertical bars.

[ x | y | z ]

Optional alternative keywords are grouped in brackets and separated by vertical bars.


A nonquoted set of characters. Do not use quotation marks around the string or the string will include the quotation marks.

Terminal sessions and information the system displays are in

boldface screen font

Information you must enter is in boldface screen font.

italic screen font

Arguments for which you supply values are in italic screen font.


This pointer highlights an important line of text in an example.


The symbol ^ represents the key labeled Control—for example, the key combination ^D in a screen display means hold down the Control key while you press the D key.

< >

Nonprinting characters, such as passwords are in angle brackets.

Notes use the following conventions:


Means reader take note. Notes contain helpful suggestions or references to material not covered in the publication.


Means reader be careful. In this situation, you might do something that could result in equipment damage or loss of data.


Means the following information might help you solve a problem.

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