Hi I got two 7941 ip phones connected to freeswitch (ip phone)192.168.22.57 -> 192.168.22.1 -> 192.168.11.30(fs) they can register fine but I can not call from ip phone to ip phone. when I use 3cx softphone in the same conditions I can call from ip phone to 3cx but not from 3cx to ip phone this is result of "sofia status profile internal" and when I get pcap on fs when invite is sent to ip phones nothing comes back Call-ID: 001bd432-a95c0003-942f6b14-17330728@192.168.22.56 User: 1005@192.168.11.30 Contact: "user" <sip:1005@192.168.22.56:5060 ;transport=udp;fs_nat=yes;fs_ path=sip%3A1005%40192.168.22.56%3A49551%3Btransport%3Dudp> Agent: Cisco-CP7941G/8.5.2 Status: Registered(UDP-NAT)(unknown) EXP(2010-05-02 14:11:11) Host: s-efrn2brk8zpcy IP: 192.168.22.56 Port: 49551 Auth-User: 1005 Auth-Realm: 192.168.11.30 MWI-Account: 1005@192.168.11.30 Call-ID: 001bd433-4c190002-d08bed92-50fab18f@192.168.22.57 User: 1010@192.168.11.30 Contact: "user" <sip:1010@192.168.22.57:5060 ;transport=udp;fs_nat=yes;fs_ path=sip%3A1010%40192.168.22.57%3A51471%3Btransport%3Dudp> Agent: Cisco-CP7941G/8.5.2 Status: Registered(UDP-NAT)(unknown) EXP(2010-05-02 12:46:04) Host: s-efrn2brk8zpcy IP: 192.168.22.57 Port: 51471 Auth-User: 1010 Auth-Realm: 192.168.11.30 MWI-Account: 1010@192.168.11.30 Call-ID: MjYzNmQ5YWYyMDkwMDc3M2UxYzY5Y2JkZGE4NTBhZWU. User: 1001@192.168.11.30 Contact: "3CXPhone" <sip:1001@192.168.22.58:3884 ;rinstance=74bf6bb1ef7db1 27;fs_nat=yes;fs_path=sip%3A1001%40192.168.22.58%3A3884%3Brinstance%3D74bf6bb1ef 7db127> Agent: 3CXVoipPhone 4.0.9878.0 Status: Registered(UDP-NAT)(unknown) EXP(2010-05-02 12:45:37) Host: s-efrn2brk8zpcy IP: 192.168.22.58 Port: 3884 Auth-User: 1001 Auth-Realm: 192.168.11.30 MWI-Account: 1001@192.168.11.30