We currently don't support forked dialogs. Mike On Sep 8, 2009, at 12:16 PM, Humberto Quintana wrote:

Hi Brian,

Thank you very much for your answer but both, Freeswitch and Kamailio have public IPs, it's my NAT'd IP phone who has private IP but this is fixed by Kamailio.

The problem is not the 1st call is failing ( the test is set that way), the problem is FS answers back 482 when Kamailio tries a 2nd route ( or 3rd ) for the same call...

Freeswitch is configured to use the Requested-URI sent by Kamailio:

<action application="bridge" data="sofia/external/${sip_req_uri}"/>

I noticed that there is no Log message in Freeswitch when receiving the INVITE for the 2nd route. The process in FS seems to be destroyed (11:46:21.396593) before the 2nd INVITE is received (11:46:21.401419 ).

U 2009/09/08 11:46:21.395702 freeswitch:5060 -> kamailio:5060 SIP/2.0 503 Service Unavailable. Call-ID: ba748cd27cd163b5@192.168.2.13

U 2009/09/08 11:46:21.395897 kamailio:5060 -> freeswitch:5060 ACK sip:5145555555@gw1:5060 SIP/2.0. Call-ID: ba748cd27cd163b5@192.168.2.13

U 2009/09/08 11:46:21.401419 kamailio:5060 -> freeswitch:5060 INVITE sip:15145555555@gw2:5061 SIP/2.0. Call-ID: ba748cd27cd163b5@192.168.2.13

U 2009/09/08 11:46:21.401845 freeswitch:5060 -> kamailio:5060 SIP/2.0 482 Request merged. Call-ID: ba748cd27cd163b5@192.168.2.13

2009-09-08 11:46:21.395503 [DEBUG] mod_sofia.c:417 Responding to INVITE with: 503 2009-09-08 11:46:21.395503 [DEBUG] switch_core_state_machine.c:46 sofia/external/10092020@freeswitch Standard HANGUP, cause: NORMAL_TEMPORARY_FAILURE 2009-09-08 11:46:21.396593 [DEBUG] switch_core_state_machine.c:434 (sofia/external/10092020@freeswitch) State HANGUP going to sleep 2009-09-08 11:46:21.396593 [DEBUG] switch_core_state_machine.c:476 (sofia/external/10092020@freeswitch) State Change CS_HANGUP -> CS_REPORTING 2009-09-08 11:46:21.396593 [DEBUG] switch_core_session.c:932 Send signal sofia/external/10092020@freeswitch [BREAK] 2009-09-08 11:46:21.396593 [DEBUG] switch_core_state_machine.c:398 (sofia/external/10092020@freeswitch) Running State Change CS_REPORTING 2009-09-08 11:46:21.396593 [DEBUG] switch_core_state_machine.c:612 (sofia/external/10092020@freeswitch) State REPORTING 2009-09-08 11:46:21.396593 [DEBUG] switch_core_state_machine.c:53 sofia/external/10092020@freeswitch Standard REPORTING, cause: NORMAL_TEMPORARY_FAILURE 2009-09-08 11:46:21.396593 [DEBUG] switch_core_state_machine.c:612 (sofia/external/10092020@freeswitch) State REPORTING going to sleep 2009-09-08 11:46:21.396593 [DEBUG] switch_core_state_machine.c:411 (sofia/external/10092020@freeswitch) State Change CS_REPORTING -> CS_DESTROY 2009-09-08 11:46:21.396593 [DEBUG] switch_core_session.c:1068 Session 3 (sofia/external/10092020@freeswitch) Locked, Waiting on external entities 2009-09-08 11:46:21.396593 [NOTICE] switch_core_session.c:1086 Session 3 (sofia/external/10092020@freeswitch) Ended 2009-09-08 11:46:21.396593 [NOTICE] switch_core_session.c:1088 Close Channel sofia/external/10092020@freeswitch [CS_DESTROY] 2009-09-08 11:46:21.396593 [DEBUG] switch_core_state_machine.c:564 (sofia/external/10092020@freeswitch) State DESTROY 2009-09-08 11:46:21.396593 [DEBUG] mod_sofia.c:255 sofia/external/ 10092020@freeswitch SOFIA DESTROY 2009-09-08 11:46:21.396593 [DEBUG] switch_core_state_machine.c:60 sofia/external/10092020@freeswitch Standard DESTROY 2009-09-08 11:46:21.396593 [DEBUG] switch_core_state_machine.c:564 (sofia/external/10092020@freeswitch) State DESTROY going to sleep

Note: I'm using only the external sofia profile.

Thanks,

Humberto

========================================== Looks like FS is behind nat. You need to set local-network-acl and the ext-rtp-ip and ext-sip-ip so FreeSWITCH properly puts in the right IP's in the via headers and sdp.

Please refer to internal.xml in the latest SVN for an example of how to do this.

/b

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