[OpenSER-Users] T38 re invite not being sent to VoIP provider

[Mike O'Connor]

Hi Franz

A capture of the sip packets from the epygi showed the T38 reinvite was
sent to openser.

Thanks for your question, as I have not been able to find out why this
is not working.

Mike
>
> Are you sure that the 2nd INVITE touches OpenSER at all? 
> Otherwise I would guess you did not record-route.
>
> Franz
>
>   
Internet Protocol, Src: 203.xxx.xxx.xx6 (203.xxx.xxx.xx6), Dst:
118.xxx.xxx.x10 (118.xxx.xxx.x10)
    Version: 4
    Header length: 20 bytes
    Differentiated Services Field: 0x00 (DSCP 0x00: Default; ECN: 0x00)
        0000 00.. = Differentiated Services Codepoint: Default (0x00)
        .... ..0. = ECN-Capable Transport (ECT): 0
        .... ...0 = ECN-CE: 0
    Total Length: 1077
    Identification: 0x0000 (0)
    Flags: 0x04 (Don't Fragment)
        0... = Reserved bit: Not set
        .1.. = Don't fragment: Set
        ..0. = More fragments: Not set
    Fragment offset: 0
    Time to live: 64
    Protocol: UDP (0x11)
    Header checksum: 0x2be8 [correct]
    Source: 203.xxx.xxx.xx6 (203.xxx.xxx.xx6)
    Destination: 118.xxx.xxx.x10 (118.xxx.xxx.x10)
User Datagram Protocol, Src Port: sip (5060), Dst Port: sip (5060)
    Source port: sip (5060)
    Destination port: sip (5060)
    Length: 1057
    Checksum: 0x2d6c [correct]
Session Initiation Protocol
    Request-Line: INVITE sip:0883893111 at 202.xxx.xxx.xx3:5060 SIP/2.0
        Method: INVITE
        Resent Packet: False
    Message Header
        Via: SIP/2.0/UDP
203.xxx.xxx.xx6:5060;rport;branch=z9hG4bKEPSVBUS64b55558-a141-4f2c-b16b-a12a8ab6bf3b
        To: "0883893111"
<sip:0883893111 at 202.xxx.xxx.xx3:5060>;tag=5aa0fdcc-co3356-INS001
            SIP Display info: "0883893111"
            SIP to address: sip:0883893111 at 202.xxx.xxx.xx3:5060
            SIP tag: 5aa0fdcc-co3356-INS001
        From:
<sip:0888622196 at 118.xxx.xxx.x10:5060>;tag=11979545488eec7fd7-b919-4d3d-97ac-9a723c5b719a
            SIP from address: sip:0888622196 at 118.xxx.xxx.x10:5060
            SIP tag: 11979545488eec7fd7-b919-4d3d-97ac-9a723c5b719a
        CSeq: 307 INVITE
        Call-ID: 0086-0F08-B626A854-0 at 578365F692451C054
        Contact: <sip:111020 at 203.xxx.xxx.xx6:5060>
            Contact Binding: <sip:111020 at 203.xxx.xxx.xx6:5060>
                URI: <sip:111020 at 203.xxx.xxx.xx6:5060>
                    SIP contact address: sip:111020 at 203.xxx.xxx.xx6:5060
        Content-Type: application/sdp
        User-Agent: Epygi Quadro SIP User Agent/v4.1.40 (QUADRO-2X)
        Max-Forwards: 70
        Route: <sip:118.xxx.xxx.x10;lr=on;ftag=5aa0fdcc-co3356-INS001>
        Proxy-Authorization: Digest
realm="118.xxx.xxx.x10",nonce="4769e7f5a8ae6f21980eea447f694d68968d77f9",username="111020",uri="sip:0883893111 at 202.xxx.xxx.xx3:5060",response="9948c4e88338754b0cef4c53665288cf"
        Content-Length: 217
    Message body
        Session Description Protocol
            Session Description Protocol Version (v): 0
            Owner/Creator, Session Id (o): 111020 309 569 IN IP4
203.xxx.xxx.xx6
                Owner Username: 111020
                Session ID: 309
                Session Version: 569
                Owner Network Type: IN
                Owner Address Type: IP4
                Owner Address: 203.xxx.xxx.xx6
            Session Name (s): -
            Connection Information (c): IN IP4 203.xxx.xxx.xx6
                Connection Network Type: IN
                Connection Address Type: IP4
                Connection Address: 203.xxx.xxx.xx6
            Time Description, active time (t): 0 0
                Session Start Time: 0
                Session Stop Time: 0
            Media Description, name and address (m): image 6030 udptl t38
                Media Type: image
                Media Port: 6030
                Media Proto: udptl
                Media Format: t38
            Media Attribute (a): T38FaxVersion:0
                Media Attribute Fieldname: T38FaxVersion
                Media Attribute Value: 0
            Media Attribute (a): T38MaxBitRate:14400
                Media Attribute Fieldname: T38MaxBitRate
                Media Attribute Value: 14400
            Media Attribute (a): T38FaxRateManagement:transferredTCF
                Media Attribute Fieldname: T38FaxRateManagement
                Media Attribute Value: transferredTCF
            Media Attribute (a): T38FaxUdpEC:t38UDPRedundancy
                Media Attribute Fieldname: T38FaxUdpEC
                Media Attribute Value: t38UDPRedundancy