diff --git a/conf/sofia.conf.xml b/conf/sofia.conf.xml
index 136fe55895..696d057acb 100644
--- a/conf/sofia.conf.xml
+++ b/conf/sofia.conf.xml
@@ -82,7 +82,7 @@
 	<!--<param name="disable-transcoding" value="true"/>-->
 	<param name="auth-calls" value="true"/>
 	<!-- on authed calls, authenticate *all* the packets not just invite -->
-	<!--<param name="auth-all-packets" value="true"/>-->
+	<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}"/>