siptrace: docs for trace_init_mode parameter

src/modules/siptrace/doc/siptrace_admin.xml

@@ -462,6 +462,44 @@ modparam("siptrace", "trace_delayed", 1)
 ...
 modparam("siptrace", "force_send_sock", "sip:10.1.1.2:5000")
 ...
+</programlisting>
+                </example>
+        </section>
+	<section id="siptrace.p.trace_init_mode">
+                <title><varname>trace_init_mode</varname> (integer)</title>
+				<para>
+					Control what tracing modes are initialized.
+                </para>
+				<para>
+				The value of the parameter can be a combination of next values:
+				<itemizedlist>
+				<listitem>
+                <para>
+                0 - all modes are initialized.
+                </para>
+				</listitem>
+				<listitem>
+                <para>
+				1 - module initialized to do tracing only with core callback
+				functions (see also 'trace_mode' parameter).
+                </para>
+				</listitem>
+				<listitem>
+                <para>
+				2 - module initialized to do tracing only using config script flags
+				and functions.
+                </para>
+				</listitem>
+				</itemizedlist>
+                <para>
+                Default value is <emphasis>0</emphasis>.
+                </para>
+                <example>
+                <title>Set <varname>trace_init_mode</varname> parameter</title>
+                <programlisting format="linespecific">
+...
+modparam("siptrace", "trace_init_mode", 1)
+...
 </programlisting>
                 </example>
         </section>