Thanks Brian, Initially I though the same and looked for something to migrate the tcp session, tcpcp and sockmi, but no joy. I was doing some more testing and noticed that if the B leg was TCP and the A leg UDP the call recovered. So I though my earlier assumption about TCP connection dropping was wrong as it seems the B leg reestablishes the session on the recovering server. The issue just seems to be the recovery of the A leg. FS always sends the A leg recovery INVITE as UDP. Even if original call was TCP. If I could force it to use TCP I believe it would recover the call. Below is a call with A leg as UDP and B leg as TCP thats recovers fine. 2013-07-23 16:19:46.419717 [NOTICE] switch_channel.c:1030 New Channel sofia/private/+35319032109@198 2013-07-23 16:19:46.419717 [NOTICE] switch_channel.c:1028 Rename Channel sofia/private/+35319032109@ 2013-07-23 16:19:46.419717 [NOTICE] switch_core_sqldb.c:2744 Resurrecting fallen channel sofia/priva 2013-07-23 16:19:46.439717 [NOTICE] switch_channel.c:1030 New Channel sofia/internal/0877857933@10.1 2013-07-23 16:19:46.439717 [NOTICE] switch_channel.c:1028 Rename Channel sofia/internal/0877857933@1 2013-07-23 16:19:46.439717 [NOTICE] switch_core_sqldb.c:2744 Resurrecting fallen channel sofia/inter send 1110 bytes to udp/[10.101.23.203]:5060 at 15:19:46.459562: ------------------------------------------------------------------------ INVITE sip:0877857933@10.101.23.203:5060 SIP/2.0 Via: SIP/2.0/UDP 10.101.23.110;rport;branch=z9hG4bK3tjcc8KU636FS Route: <sip:0877857933@10.101.23.203:5060;lr> Max-Forwards: 70 From: <sip:ae019032109@10.101.23.110:5060>;tag=B8BUB47FmmerF To: <sip:0877857933@10.101.23.203>;tag=95ffcd055e0f78f7d5d397020e89288dba056a96 Call-ID: 1054-453-6232013151830-IMG2_DEG-2-10.101.23.203 CSeq: 46960329 INVITE Contact: <sip:0877857933@10.101.23.110:5060> User-Agent: LAB - SBC Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER, REFER, NOTIFY Supported: timer, precondition, path, replaces Allow-Events: talk, hold, conference, refer Privacy: none Content-Type: application/sdp Content-Disposition: session Content-Length: 246 X-FS-Support: update_display,send_info P-Asserted-Identity: "ae019032109" <sip:ae019032109@10.101.23.203> v=0 o=FreeSWITCH 1374564092 1374564094 IN IP4 10.101.24.110 s=FreeSWITCH c=IN IP4 10.101.24.110 t=0 0 m=audio 28694 RTP/AVP 8 101 13 a=rtpmap:8 PCMA/8000 a=rtpmap:101 telephone-event/8000 a=fmtp:101 0-16 a=rtpmap:13 CN/8000 a=ptime:20 ------------------------------------------------------------------------ recv 398 bytes from udp/[10.101.23.203]:5060 at 15:19:46.463116: ------------------------------------------------------------------------ SIP/2.0 100 Trying Via: SIP/2.0/UDP 10.101.23.110;rport;branch=z9hG4bK3tjcc8KU636FS;received=10.101.23.110 Call-ID: 1054-453-6232013151830-IMG2_DEG-2-10.101.23.203 From: <sip:ae019032109@10.101.23.110:5060>;tag=B8BUB47FmmerF To: <sip:0877857933@10.101.23.203>;tag=95ffcd055e0f78f7d5d397020e89288dba056a96 CSeq: 46960329 INVITE Server: Dialogic-SIP/10.5.3.372 IMG2_DEG 2 Content-Length: 0 ------------------------------------------------------------------------ recv 961 bytes from udp/[10.101.23.203]:5060 at 15:19:46.463966: ------------------------------------------------------------------------ SIP/2.0 200 OK Via: SIP/2.0/UDP 10.101.23.110;rport;branch=z9hG4bK3tjcc8KU636FS;received=10.101.23.110 Call-ID: 1054-453-6232013151830-IMG2_DEG-2-10.101.23.203 From: <sip:ae019032109@10.101.23.110:5060>;tag=B8BUB47FmmerF To: <sip:0877857933@10.101.23.203>;tag=95ffcd055e0f78f7d5d397020e89288dba056a96 Contact: <sip:0877857933@10.101.23.203:5060> CSeq: 46960329 INVITE Server: Dialogic-SIP/10.5.3.372 IMG2_DEG 2 Allow: INVITE, BYE, REGISTER, ACK, OPTIONS, CANCEL, SUBSCRIBE, NOTIFY, INFO, REFER, UPDATE Supported: path, replaces, timer, tdialog Require: timer Session-Expires: 1800;refresher=uas Accept: application/sdp, application/dtmf-relay, text/plain Content-Type: application/sdp Content-Length: 239 v=0 o=Dialogic_SDP 963778 1 IN IP4 10.101.23.203 s=Dialogic-SIP c=IN IP4 10.101.24.203 t=0 0 m=audio 8332 RTP/AVP 8 101 a=rtpmap:8 PCMA/8000 a=rtpmap:101 telephone-event/8000 a=fmtp:101 0-15 a=silenceSupp:off - - - - a=ptime:20 ------------------------------------------------------------------------ recv 961 bytes from udp/[10.101.23.203]:5060 at 15:19:47.101507: ------------------------------------------------------------------------ SIP/2.0 200 OK Via: SIP/2.0/UDP 10.101.23.110;rport;branch=z9hG4bK3tjcc8KU636FS;received=10.101.23.110 Call-ID: 1054-453-6232013151830-IMG2_DEG-2-10.101.23.203 From: <sip:ae019032109@10.101.23.110:5060>;tag=B8BUB47FmmerF To: <sip:0877857933@10.101.23.203>;tag=95ffcd055e0f78f7d5d397020e89288dba056a96 Contact: <sip:0877857933@10.101.23.203:5060> CSeq: 46960329 INVITE Server: Dialogic-SIP/10.5.3.372 IMG2_DEG 2 Allow: INVITE, BYE, REGISTER, ACK, OPTIONS, CANCEL, SUBSCRIBE, NOTIFY, INFO, REFER, UPDATE Supported: path, replaces, timer, tdialog Require: timer Session-Expires: 1800;refresher=uas Accept: application/sdp, application/dtmf-relay, text/plain Content-Type: application/sdp Content-Length: 239 v=0 o=Dialogic_SDP 963778 1 IN IP4 10.101.23.203 s=Dialogic-SIP c=IN IP4 10.101.24.203 t=0 0 m=audio 8332 RTP/AVP 8 101 a=rtpmap:8 PCMA/8000 a=rtpmap:101 telephone-event/8000 a=fmtp:101 0-15 a=silenceSupp:off - - - - a=ptime:20 ------------------------------------------------------------------------ recv 961 bytes from udp/[10.101.23.203]:5060 at 15:19:48.070746: ------------------------------------------------------------------------ SIP/2.0 200 OK Via: SIP/2.0/UDP 10.101.23.110;rport;branch=z9hG4bK3tjcc8KU636FS;received=10.101.23.110 Call-ID: 1054-453-6232013151830-IMG2_DEG-2-10.101.23.203 From: <sip:ae019032109@10.101.23.110:5060>;tag=B8BUB47FmmerF To: <sip:0877857933@10.101.23.203>;tag=95ffcd055e0f78f7d5d397020e89288dba056a96 Contact: <sip:0877857933@10.101.23.203:5060> CSeq: 46960329 INVITE Server: Dialogic-SIP/10.5.3.372 IMG2_DEG 2 Allow: INVITE, BYE, REGISTER, ACK, OPTIONS, CANCEL, SUBSCRIBE, NOTIFY, INFO, REFER, UPDATE Supported: path, replaces, timer, tdialog Require: timer Session-Expires: 1800;refresher=uas Accept: application/sdp, application/dtmf-relay, text/plain Content-Type: application/sdp Content-Length: 239 v=0 o=Dialogic_SDP 963778 1 IN IP4 10.101.23.203 s=Dialogic-SIP c=IN IP4 10.101.24.203 t=0 0 m=audio 8332 RTP/AVP 8 101 a=rtpmap:8 PCMA/8000 a=rtpmap:101 telephone-event/8000 a=fmtp:101 0-15 a=silenceSupp:off - - - - a=ptime:20 ------------------------------------------------------------------------ send 1175 bytes to tcp/[198.19.255.1]:5060 at 15:19:49.473346: ------------------------------------------------------------------------ INVITE sip:+35319032109@198.19.255.1:5060;transport=tcp SIP/2.0 Via: SIP/2.0/TCP 78.158.110.24;rport;branch=z9hG4bKBNF06yNpU187Q Via: SIP/2.0/TCP 78.158.110.24;rport;branch=z9hG4bKZ21tSFUQvy38c Max-Forwards: 69 From: "+353877857933" <sip:+353877857933@78.158.110.24>;tag=BK8QvjBeDHXtN To: <sip:+35319032109@198.19.255.1;transport=tcp>;tag=397C7E04-26CA Call-ID: f9547f1f-6e4d-1231-028b-001f290685a4 CSeq: 46960329 INVITE Contact: <sip:+35319032109@78.158.110.24:5060;transport=tcp> User-Agent: PlanNet21 Communications - SBC Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER, REFER, NOTIFY Supported: timer, precondition, path, replaces Allow-Events: talk, hold, conference, refer Privacy: none Content-Type: application/sdp Content-Disposition: session Content-Length: 246 X-FS-Support: update_display,send_info P-Asserted-Identity: "+353877857933" <sip:+353877857933@78.158.110.24> v=0 o=FreeSWITCH 1374569678 1374569680 IN IP4 78.158.110.24 s=FreeSWITCH c=IN IP4 78.158.110.24 t=0 0 m=audio 23108 RTP/AVP 8 101 13 a=rtpmap:8 PCMA/8000 a=rtpmap:101 telephone-event/8000 a=fmtp:101 0-16 a=rtpmap:13 CN/8000 a=ptime:20 ------------------------------------------------------------------------ recv 484 bytes from tcp/[198.19.255.1]:5060 at 15:19:49.536636: ------------------------------------------------------------------------ SIP/2.0 100 Trying Via: SIP/2.0/TCP 78.158.110.24;rport;branch=z9hG4bKBNF06yNpU187Q,SIP/2.0/TCP 78.158.110.24;rport; From: "+353877857933" <sip:+353877857933@78.158.110.24>;tag=BK8QvjBeDHXtN To: <sip:+35319032109@198.19.255.1;transport=tcp>;tag=397C7E04-26CA Date: Tue, 23 Jul 2013 15:19:49 GMT Call-ID: f9547f1f-6e4d-1231-028b-001f290685a4 CSeq: 46960329 INVITE Allow-Events: telephone-event Server: Cisco-SIPGateway/IOS-12.x Content-Length: 0 ------------------------------------------------------------------------ recv 1073 bytes from tcp/[198.19.255.1]:5060 at 15:19:49.601460: ------------------------------------------------------------------------ SIP/2.0 200 OK Via: SIP/2.0/TCP 78.158.110.24;rport;branch=z9hG4bKBNF06yNpU187Q,SIP/2.0/TCP 78.158.110.24;rport; From: "+353877857933" <sip:+353877857933@78.158.110.24>;tag=BK8QvjBeDHXtN To: <sip:+35319032109@198.19.255.1;transport=tcp>;tag=397C7E04-26CA Date: Tue, 23 Jul 2013 15:19:49 GMT Call-ID: f9547f1f-6e4d-1231-028b-001f290685a4 CSeq: 46960329 INVITE Allow: INVITE, OPTIONS, BYE, CANCEL, ACK, PRACK, UPDATE, REFER, SUBSCRIBE, NOTIFY, INFO, REGISTER Allow-Events: telephone-event Remote-Party-ID: "Ian McGrath" <sip:+1947@198.19.255.1>;party=called;screen=yes;privacy=off Contact: <sip:+35319032109@198.19.255.1:5060;transport=tcp> Supported: replaces Supported: sdp-anat Server: Cisco-SIPGateway/IOS-12.x Supported: timer Content-Type: application/sdp Content-Length: 247 v=0 o=CiscoSystemsSIP-GW-UserAgent 3902 8614 IN IP4 198.19.255.1 s=SIP Call c=IN IP4 198.19.255.1 t=0 0 m=audio 19050 RTP/AVP 8 101 c=IN IP4 198.19.255.1 a=rtpmap:8 PCMA/8000 a=rtpmap:101 telephone-event/8000 a=fmtp:101 0-16 a=ptime:20 ------------------------------------------------------------------------ send 440 bytes to tcp/[198.19.255.1]:5060 at 15:19:49.603288: ------------------------------------------------------------------------ ACK sip:+35319032109@198.19.255.1:5060;transport=tcp SIP/2.0 Via: SIP/2.0/TCP 78.158.110.24;rport;branch=z9hG4bKcy8r8S6SraZtK Max-Forwards: 70 From: "+353877857933" <sip:+353877857933@78.158.110.24>;tag=BK8QvjBeDHXtN To: <sip:+35319032109@198.19.255.1;transport=tcp>;tag=397C7E04-26CA Call-ID: f9547f1f-6e4d-1231-028b-001f290685a4 CSeq: 46960329 ACK Contact: <sip:+35319032109@78.158.110.24:5060;transport=tcp> Content-Length: 0 ------------------------------------------------------------------------ send 466 bytes to udp/[10.101.23.203]:5060 at 15:19:49.606747: ------------------------------------------------------------------------ ACK sip:0877857933@10.101.23.203:5060 SIP/2.0 Via: SIP/2.0/UDP 10.101.23.110;rport;branch=z9hG4bK43B5D34y3cX2m Route: <sip:0877857933@10.101.23.203:5060;lr> Max-Forwards: 70 From: <sip:ae019032109@10.101.23.110:5060>;tag=B8BUB47FmmerF To: <sip:0877857933@10.101.23.203>;tag=95ffcd055e0f78f7d5d397020e89288dba056a96 Call-ID: 1054-453-6232013151830-IMG2_DEG-2-10.101.23.203 CSeq: 46960329 ACK Contact: <sip:0877857933@10.101.23.110:5060> Content-Length: 0 ------------------------------------------------------------------------ On 23 Jul 2013, at 14:47, Brian West <brian@freeswitch.org> wrote:
You can't do call recovery on TCP at the moment, You have no way to re-establish the TCP connections once FreeSWITCH goes down.
/b
Em Jul 23, 2013, às 8:01 AM, Anthony McGarry <agtmcgarry@gmail.com> escreveu:
Anyone using TCP in this scenario? Cannot find what I'm missing.
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