kamailio/modules/prefix_route/doc/extra.xml

<?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="prefixroute.extra" xmlns:xi="http://www.w3.org/2001/XInclude">
    <title>Database Structure</title>

	<para>
	A prefix route set consists of three fields:
	</para>
	<itemizedlist>
		<listitem><para>prefix - varchar(64) - Prefix rule</para></listitem>
		<listitem><para>route - varchar(64) - Route name</para></listitem>
		<listitem><para>comment - varchar(64) - Free-form comment</para></listitem>
	</itemizedlist>
    <example>
        <title>Sample data</title>
        <programlisting format="linespecific">
...
   +--------+-------+---------------+
   | prefix | route | comment       |
   +--------+-------+---------------+
   | 46     | SE    | Sweden        | 
   | 47     | NO    | Norway        | 
   | 479    | NOMOB | Norway mobile | 
   | 49     | DE    | Deutschland   | 
   | 39     | IT    | Italy         | 
   +--------+-------+---------------+
...
</programlisting>
       </example>

</section>