kamailio/modules/counters/doc/counters_params.xml

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<section id="cnts.parameters" xmlns:xi="http://www.w3.org/2001/XInclude">
	<sectioninfo>
	</sectioninfo>
	<title>Parameters</title>

	<section id="scrip_counter">
		<title><varname>script_counter</varname></title>
		<para>
			Define a new counter that can be used from the script.
			The declaration might include a group in front of the counter
			name, separated with '.'. It might also include a counter
			description string (help message), separated from the name
			with a ' ' or  ':'.
			If the group is missing, the group defined in the
			<varname>script_cnt_grp_name</varname> module parameter will
			be used (the default is "script").
			If the description is missing, the default is
			"custom script counter".
			The format of the declaration is: [group.]name[( |:)description].
		</para>
		<example>
			<title>
				Create a new <varname>script_counter</varname>
			</title>
			<programlisting>
modparam("counters", "script_counter", "foo")  # script.foo
modparam("counters", "script_counter", "test.bar")  # test.bar
modparam("counters", "script_counter", "baz example counter")  # script.baz
modparam("counters", "script_counter", "test.x:another example") # test.x
			</programlisting>
		</example>
	</section>

	<section id="scrip_cnt_grp_name">
		<title><varname>script_cnt_grp_name</varname></title>
		<para>
			Group name that will be used for the counters defined
			via the <varname>script_counter</varname> module parameter which
			do not have a specified group.
		</para>
		<para>
			Default: "script".
		</para>
		<example>
			<title>
				Set <varname>script_cnt_grp_name</varname> in the config file
			</title>
			<programlisting>
modparam("counters", "script_cnt_grp_name", "my_counters")
			</programlisting>
		</example>
	</section>

</section>