FS-9192-proxy-hold: proxy hold when proxy media and proxy mode are disabled; its similiar to proxy-refer

src/mod/endpoints/mod_sofia/conf/sofia.conf.xml

@@ -495,6 +495,11 @@
              really need to change this.
         -->
         <!-- <param name="renegotiate-codec-on-hold" value="true"/> -->
+
+        <!-- Turn on proxy hold when proxy media and proxy mode are disabled 
+             By default it is not set
+        --> 
+        <!-- <param name="proxy-hold" value="true"/> -->
       </settings>
     </profile>
   </profiles>