Hello.

I was wondering if someone can help me with some problem that I’m having with the combination of FreeSwitch and Kamailio as SBC.

I’m having and ACK not routed by kamailio and dropped.

Here is the debug.

 

100.100.100.211:5060 : Kamailio

100.100.100.211:5090 : FreeSwitch

100.100.100.108 : Caller

100.100.100.212 : Calle

 

    Request-Line: INVITE sip:02131234@100.100.100.211 SIP/2.0

        Method: INVITE

        [Resent Packet: False]

    Message Header

        Via: SIP/2.0/UDP 64.76.148.108:42772;branch=z9hG4bK-d8754z-da0b2e4b1b5d0843-1---d8754z-;rport

        Max-Forwards: 70

        Contact: <sip:1234@64.76.148.108:42772>

        To: <sip:02131234@100.100.100.211>

        From: "camila"<sip:1234@100.100.100.211>;tag=8422566b

        Call-ID: MjY2NDY5NTE3OTk4MzdmMjE0YWQxNWQ4MWFmY2JhMWQ.

        CSeq: 1 INVITE

        Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, NOTIFY, MESSAGE, SUBSCRIBE, INFO

        Content-Type: application/sdp

        User-Agent: Bria release 2.2 stamp 45414

        Content-Length: 388

    Message Body

        Session Description Protocol

 

    Status-Line: SIP/2.0 100 trying -- your call is important to us

        Status-Code: 100

        [Resent Packet: False]

    Message Header

        Via: SIP/2.0/UDP 64.76.148.108:42772;branch=z9hG4bK-d8754z-da0b2e4b1b5d0843-1---d8754z-;rport=42772

        To: <sip:02131234@100.100.100.211>

        From: "camila"<sip:1234@100.100.100.211>;tag=8422566b

        Call-ID: MjY2NDY5NTE3OTk4MzdmMjE0YWQxNWQ4MWFmY2JhMWQ.

        CSeq: 1 INVITE

        Server: kamailio (3.1.1 (i386/linux))

        Content-Length: 0

 

    Status-Line: SIP/2.0 200 OK

        Status-Code: 200

        [Resent Packet: False]

    Message Header

        Via: SIP/2.0/UDP 64.76.148.108:42772;branch=z9hG4bK-d8754z-da0b2e4b1b5d0843-1---d8754z-;rport=42772

       Record-Route: <sip:100.100.100.211;lr=on>

        From: "camila" <sip:1234@100.100.100.211>;tag=8422566b

        To: <sip:02131234@100.100.100.211>;tag=pBZjZayFUeDSp

        Call-ID: MjY2NDY5NTE3OTk4MzdmMjE0YWQxNWQ4MWFmY2JhMWQ.

        CSeq: 1 INVITE

        Contact: <sip:02131234@100.100.100.211:5090;transport=udp>

        User-Agent: FreeSWITCH-mod_sofia/1.0.head-git-d41e649 2011-01-11 12-25-55 -0600

        Accept: application/sdp

    Message Body

        Session Description Protocol

 

 

    Request-Line: ACK sip:02131234@100.100.100.211:5090;transport=udp SIP/2.0

        Method: ACK

        [Resent Packet: False]

    Message Header

        Via: SIP/2.0/UDP 64.76.148.108:42772;branch=z9hG4bK-d8754z-182d537bcb534165-1---d8754z-;rport

        Max-Forwards: 70

        Route: <sip:100.100.100.211;lr>

        Contact: <sip:1234@64.76.148.108:42772>

        To: <sip:02131234@100.100.100.211>;tag=pBZjZayFUeDSp

        From: "camila"<sip:1234@100.100.100.211>;tag=8422566b

        Call-ID: MjY2NDY5NTE3OTk4MzdmMjE0YWQxNWQ4MWFmY2JhMWQ.

        CSeq: 1 ACK

        User-Agent: Bria release 2.2 stamp 45414

        Content-Length: 0

 

    Status-Line: SIP/2.0 200 OK

        Status-Code: 200

        [Resent Packet: True]

        [Suspected resend of frame: 7]

    Message Header

        Via: SIP/2.0/UDP 64.76.148.108:42772;branch=z9hG4bK-d8754z-da0b2e4b1b5d0843-1---d8754z-;rport=42772

        Record-Route: <sip:100.100.100.211;lr=on>

        From: "camila" <sip:1234@100.100.100.211>;tag=8422566b

        To: <sip:02131234@100.100.100.211>;tag=pBZjZayFUeDSp

        Call-ID: MjY2NDY5NTE3OTk4MzdmMjE0YWQxNWQ4MWFmY2JhMWQ.

        CSeq: 1 INVITE

        Contact: <sip:02131234@100.100.100.211:5090;transport=udp>

        User-Agent: FreeSWITCH-mod_sofia/1.0.head-git-d41e649 2011-01-11 12-25-55 -0600

        Accept: application/sdp

    Message Body

        Session Description Protocol

 

 

When I removed Freeswitch from the path the ACK is routed ok.

The ACK is routed by loose_route, but then it fails because the

 

if ( t_check_trans() ) {

 

 

What could be happening?

 

Regards,

Ricardo.-

 

Ricardo Martínez | Ingeniero de Desarrollo
RedVoiss
| rmartinez@redvoiss.net

Santiago - Chile | +56 2 2408196
www.redvoiss.net