Hi all, i try to install FS as SBC between public internet and private subnet. (SIP-User)--->[public-ip]FreeSWITCH[private-ip]--->(IVR System) If i try to reach an user, i got USER_NOT_REGISTERED. If i registered to the internal sip profile with the private address, everything works fine. Any hints? freeswitch@kamailio1> sofia status profile external ================================================================================================= Name external Domain Name N/A Auto-NAT false DBName sofia_reg_external Pres Hosts Dialplan XML Context public Challenge Realm auto_to RTP-IP 212.xx.xx.xx SIP-IP 212.xx.xx.xx URL sip:mod_sofia@212.xx.xx.xx:5060 BIND-URL sip:mod_sofia@212.xx.xx.xx:5060 HOLD-MUSIC local_stream://moh OUTBOUND-PROXY N/A CODECS IN PCMU,PCMA,GSM CODECS OUT PCMU,PCMA,GSM 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 4 FAILED-CALLS-IN 2 CALLS-OUT 0 FAILED-CALLS-OUT 0 REGISTRATIONS 2 freeswitch@kamailio1> sofia status profile internal ================================================================================================= Name internal Domain Name N/A Auto-NAT false DBName sofia_reg_internal Pres Hosts 212.59.42.189,172.20.100.74 Dialplan XML Context public Challenge Realm auto_from RTP-IP 172.20.100.74 SIP-IP 172.20.100.74 URL sip:mod_sofia@172.20.100.74:5060 BIND-URL sip:mod_sofia@172.20.100.74:5060 HOLD-MUSIC local_stream://moh OUTBOUND-PROXY N/A CODECS IN PCMU,PCMA,GSM CODECS OUT PCMU,PCMA,GSM 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 1 FAILED-CALLS-OUT 1 REGISTRATIONS 0 -- Mit freundlichen Grüßen *Karsten Horsmann*