diff --git a/conf/sip_profiles/external.xml b/conf/sip_profiles/external.xml
index 637488f511..0a0e7a00c1 100644
--- a/conf/sip_profiles/external.xml
+++ b/conf/sip_profiles/external.xml
@@ -27,7 +27,7 @@
     <param name="use-rtp-timer" value="true"/>
     <param name="rtp-timer-name" value="soft"/>
     <param name="manage-presence" value="false"/>
-    <param name="aggressive-nat-detection" value="true"/>
+    <!--<param name="aggressive-nat-detection" value="true"/>-->
     <param name="inbound-codec-negotiation" value="generous"/>
     <param name="nonce-ttl" value="60"/>
     <param name="auth-calls" value="false"/>