Hi, Please help. My FreeSWITCH has some mobile clients (Sipdroid and Nokia), keeps registration on the FS. See registration record samples: Call-ID: 571195090210@14.144.242.244 User: 1019@192.168.1.5 Contact: "user" <sip:1019@14.144.242.244:38592;transport=udp> Agent: Sipdroid/1.4.6 beta/T-Mobile G1 Status: Registered(UDP)(unknown) EXP(2010-05-19 16:38:41) Host: olegh.ath.cx IP: 208.54.35.47 Port: 30727 Auth-User: 1019 Auth-Realm: olegh.ath.cx MWI-Account: 1019@192.168.1.5 Call-ID: 30IpTq1FoIfJnxJC5ROP1HByEOig2n User: 1015@192.168.1.5 Contact: "user" <sip:1015@10.0.0.135;transport=TCP;fs_nat=yes;fs_path=sip%3A1015%4094.71.98.45%3A17476%3Btransport%3DTCP> Agent: Nokia RA-6 210.34.75 Status: Registered(TCP-NAT)(unknown) EXP(2010-05-19 15:57:27) Host: olegh.ath.cx IP: 94.71.98.45 Port: 17476 Auth-User: 1015 Auth-Realm: olegh.ath.cx MWI-Account: 1015@192.168.1.5 As you can see, for last samle (nokia) "Contact" contains line: sip:1015@10.0.0.135. In the real life, this phone NATed, and real IP (gateway's) is 94.71.98.45. Call from that phone is OK. But, when I try to call that phone from local, FS try to use wrong IP for connect: 2010-05-19 14:28:24.156706 [NOTICE] switch_channel.c:669 New Channel sofia/internal/sip:1015@10.0.0.135 [62b74c4f-7463-df11-ac63-005004c3cb7e] Of course, connection can not be established. Question: How to fix this problem? Or maybe, need to change FS, and always use REAL IP:PORT for establish outgoing call? Following - header of "sofia status profile internal": ================================================================================================= Name internal Domain Name N/A Auto-NAT true DBName sofia_reg_internal Pres Hosts Dialplan XML Context public Challenge Realm auto_from RTP-IP 192.168.1.5 Ext-RTP-IP 173.73.120.93 SIP-IP 192.168.1.5 Ext-SIP-IP 173.73.120.93 URL sip:mod_sofia@192.168.1.5:5060 BIND-URL sip:mod_sofia@192.168.1.5:5060 HOLD-MUSIC local_stream://moh OUTBOUND-PROXY N/A CODECS IN G7221@32000h,G7221@16000h,G722,PCMU,PCMA,GSM CODECS OUT G7221@32000h,G7221@16000h,G722,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 96 FAILED-CALLS-IN 15 CALLS-OUT 113 FAILED-CALLS-OUT 79 Registrations: =================================================================================================