<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" 
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">

<section id="avp" xmlns:xi="http://www.w3.org/2001/XInclude">
    <sectioninfo>
	<authorgroup>
	    <author>
		<firstname>Jiri</firstname>
		<surname>Kuthan</surname>
		<affiliation><orgname>FhG Fokus</orgname></affiliation>
		<email>jiri@iptel.org</email>
	    </author>
		<author>
		<firstname>Michal</firstname>
		<surname>Matyska</surname>
		<affiliation><orgname>iptel</orgname></affiliation>
		<email>michal@iptel.org</email>
		</author>
	</authorgroup>
	<copyright>
	    <year>2004</year>
	    <year>2005</year>
	    <holder>FhG FOKUS</holder>
		<year>2006</year>
		<holder>iptelorg GmbH</holder>
	</copyright>
	<revhistory>
	    <revision>
		<revnumber>$Revision: 1.3 $</revnumber>
		<date>$Date: 2006/05/04 12:20:33 $</date>
	    </revision>
	</revhistory>
    </sectioninfo>

    <title>Avp Module</title>

    <section>
	<title>Overview</title>
	<para>
	    This module contains several functions that can be used to
	    manipulate the contents of AVPs (Attribute-Value pairs). The AVPs
	    are variables attached to the SIP message being processed. Each
	    variable has its name and value. AVPs can be used to store
	    arbitrary data or as a means of inter-module comminication.
	</para>
	<para>
	    You may also want to check the avpops module which is more flexible
	    and contains more functions. In future SER releases the avp module
	    will be probably deprecated in favor of avpops module.
	</para>
    </section>

    <xi:include href="functions.xml"/>
    <xi:include href="params.xml"/>

</section>


