diff --git a/modules/rhizo_base/files/etc/freeswitch/sip_profiles/internal.xml b/modules/rhizo_base/files/etc/freeswitch/sip_profiles/internal.xml
index 5297d5c..cc9b98d 100644
--- a/modules/rhizo_base/files/etc/freeswitch/sip_profiles/internal.xml
+++ b/modules/rhizo_base/files/etc/freeswitch/sip_profiles/internal.xml
@@ -272,8 +272,8 @@
          auto                  - Use guessed ip.
          auto-nat              - Use ip learned from NAT-PMP or UPNP
     -->
-    <param name="ext-rtp-ip" value="auto-nat"/>
-    <param name="ext-sip-ip" value="auto-nat"/>
+    <param name="ext-rtp-ip" value="172.16.0.1"/>
+    <param name="ext-sip-ip" value="172.16.0.1"/>
 
     <!-- rtp inactivity timeout -->
     <param name="rtp-timeout-sec" value="300"/>