diff --git a/conf/sip_profiles/external.xml b/conf/sip_profiles/external.xml
index d82ec896a1..0e538eb06c 100644
--- a/conf/sip_profiles/external.xml
+++ b/conf/sip_profiles/external.xml
@@ -26,6 +26,7 @@
     <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="inbound-codec-negotiation" value="generous"/>
     <param name="nonce-ttl" value="60"/>
     <param name="auth-calls" value="false"/>
diff --git a/conf/sip_profiles/nat.xml b/conf/sip_profiles/nat.xml
index d05fa2d9cc..24d8ab329b 100644
--- a/conf/sip_profiles/nat.xml
+++ b/conf/sip_profiles/nat.xml
@@ -17,6 +17,7 @@
     <param name="hold-music" value="$${hold_music}"/>
     <param name="rtp-timer-name" value="soft"/>
     <param name="manage-presence" value="false"/>
+    <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"/>