improve defaults to cover more strange scenarios

conf/sip_profiles/internal.xml

@@ -116,7 +116,7 @@
     <!-- used to share presence info across sofia profiles -->
     <!-- Name of the db to use for this profile -->
     <!--<param name="dbname" value="share_presence"/>-->
-    <!--<param name="presence-hosts" value="$${domain}"/>-->
+    <param name="presence-hosts" value="$${domain},$${local_ip_v4}"/>
     <!-- ************************************************* -->
     
     <!-- This setting is for AAL2 bitpacking on G726 -->