Can anybody please point me to settings or a freeswitch state that makes sofia put public IP into the Contact header? Currently I have SIP clients behind NAT registering to freeswitch. Freeswitch registers these clients with their respective private IPs. Bellow is the profile status. ================================================================================================= Name internal Domain Name N/A Auto-NAT false DBName sofia_reg_internal Pres Hosts 178.238.X.Y,178.238.X.Y Dialplan XML Context default Challenge Realm auto_from RTP-IP 178.238.X.Y Ext-RTP-IP 178.238.X.Y SIP-IP 178.238.X.Y Ext-SIP-IP 178.238.X.Y URL sip:mod_sofia@178.238.X.Y:5060 BIND-URL sip:mod_sofia@178.238.X.Y:5060;maddr=178.238.X.Y HOLD-MUSIC local_stream://moh OUTBOUND-PROXY N/A CODECS IN PCMA,PCMU,GSM,G7221@32000h,G7221@16000h,G722 CODECS OUT PCMA,PCMU,GSM,G7221@32000h,G7221@16000h,G722 TEL-EVENT 101 DTMF-MODE rfc2833 CNG 13 SESSION-TO 0 MAX-DIALOG 0 NOMEDIA false LATE-NEG false PROXY-MEDIA false AGGRESSIVENAT false STUN-ENABLED true STUN-AUTO-DISABLE false CALLS-IN 0 FAILED-CALLS-IN 0 CALLS-OUT 0 FAILED-CALLS-OUT 0 Registrations: ================================================================================================= Call-ID: 3454998XYZ@192_168_59_102 User: 1@ribtjuhd Contact: "383372XYZ" <sip:1@192.168.59.111:5060> Agent: A580 IP/022270000000 Status: Registered(UDP)(unknown) EXP(2011-11-02 13:30:43) EXPSECS(100) Host: eva IP: 81.90.X.Y Port: 22055 Auth-User: 1 Auth-Realm: ribtjuhd MWI-Account: 1@ribtjuhd Thanks! Hynek