[OpenSIPS-Users] ms teams ACK

[Ben Newlin]

A BYE ~30s after the ACK usually means the ACK was not accepted or associated with the call. This is usually due to some problem with the ACK. The ACK responses must be built according to specific requirements based on the INVITE and 200 OK values, so it is not possible to say for sure whether there is anything wrong with the ACK with only the ACK and BYE.

Ben Newlin 

On 4/29/20, 4:14 AM, "Users on behalf of Santi Anton" <users-bounces at lists.opensips.org on behalf of Santi.Anton at quarea.com> wrote:

    Hello,

    If it helps, these are the ACK sent to MSTeams and BYE received after 20
    seconds.

    sbc.xxxxxxxx.com:5067 Opensips TLS interface
    195.xx.xx.xx:5068 Opensips UDP interface
    80.xx.xx.xx:5060 Asterisk


    ACK
    sip:sip.pstnhub.microsoft.com;x-i=0c135a71-ddec-454c-a506-91079cb038d7;x-c=385a4453fc885c0bb6276a40d7796d3a/s/1/e1c45d052842415e9c0b3b0b04e32791
    SIP/2.0
    Via: SIP/2.0/TLS 195.xx.xx.xx:5067;branch=z9hG4bK2f83.ee24a46.2
    Via: SIP/2.0/UDP
    80.xx.xx.xx:5060;received=80.xx.xx.xx;branch=z9hG4bK0a1d079a;rport=5060
    Route: <sip:sip-du-a-eu.pstnhub.microsoft.com:5061;transport=tls;lr>
    Max-Forwards: 69
    From: <sip:935441221 at 80.xx.xx.xx>;tag=as7659f57d
    To: <sip:5009 at sbc.xxxxxxxxxx.com:5068>;tag=50fe42a7fdb64fe583c1089a0b47f44a
    Contact: <sip:935441221 at 80.xx.xx.xx:5060>
    Call-ID: 433371746cb44b7d76fdc42013bf92b8 at 80.xx.xx.xx:5060:5060
    CSeq: 102 ACK
    User-Agent: FPBX-12.0.76.6(11.20.0)
    Content-Length: 0


    BYE sip:935441221 at 80.xx.xx.xx:5060 SIP/2.0
    FROM:
    <sip:5009 at sbc.xxxxxxxxxx.com:5068>;tag=50fe42a7fdb64fe583c1089a0b47f44a
    TO: <sip:935441221 at 80.xx.xx.xx>;tag=as7659f57d
    CSEQ: 3 BYE
    CALL-ID: 433371746cb44b7d76fdc42013bf92b8 at 80.xx.xx.xx:5060
    MAX-FORWARDS: 69
    VIA: SIP/2.0/TLS 52.114.75.24:5061;branch=z9hG4bKf36698cf
    REASON: Q.850;cause=18;text="0c135a71-ddec-454c-a506-91079cb038d7;*Call
    Controller timed out while waiting for acknowledgement.*"
    ROUTE:
    <sip:sbc.xxxxxxxxxx.com.com:5067;transport=tls;lr;did=12a.a46808d1;r2=on>,<sip:195.xx.xx.xx:5060;lr;did=12a.a46808d1;r2=on>
    CONTACT:
    <sip:api-du-b-euwe.pstnhub.microsoft.com:443;x-i=0c135a71-ddec-454c-a506
    91079cb038d7;x-c=385a4453fc885c0bb6276a40d7796d3a/s/1/e1c45d052842415e9c0b3b0b04e32791>
    CONTENT-LENGTH: 0
    USER-AGENT: Microsoft.PSTNHub.SIPProxy v.2020.4.20.2 i.EUWE.6
    ALLOW: INVITE,ACK,OPTIONS,CANCEL,BYE,NOTIFY

    Best Regards,



    --
    Sent from: http://opensips-open-sip-server.1449251.n2.nabble.com/OpenSIPS-Users-f1449235.html

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