not wise to use ext-sip-ip yet its got a bug that breaks EVERYTHING on sip.

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@5997 d0543943-73ff-0310-b7d9-9358b9ac24b2

conf/sofia.conf.xml

@@ -88,7 +88,7 @@
 	<!-- <param name="auth-all-packets" value="true"/> -->
 
 	<param name="ext-rtp-ip" value="$${external_rtp_ip}"/>
-	<param name="ext-sip-ip" value="$${external_sip_ip}"/>
+	<!-- <param name="ext-sip-ip" value="$${external_sip_ip}"/> -->
 
 	<!-- VAD choose one (out is a good choice); -->
 	<!-- <param name="vad" value="in"/> -->