When you call, we use dlg_manage (); function to authorize the ISP with the following settings dialog module loadmodule "dialog.so" modparam ( "dialog", "enable_stats", 0) modparam ( "dialog", "db_url", DBURL) modparam ( "dialog", "db_mode", 1) modparam ( "dialog", "table_name", "dialog") modparam ( "dialog", "dlg_match_mode", 1) modparam ( "dialog", "dlg_flag", 4) modparam ( "dialog", "track_cseq_updates", 1) When sending a request ISP CANCEL get answers to 200 and 487, but instead of ACK otpralyaem COI new CANCEL.
10.1.244.235:5060 176.99.138.244:5060│ ──────────┬───────── ──────────┬───────── │ │ │ │ │ │ │ │ │ INVITE (SDP) │ │ ──────────────────────────> │ │ 401 Unauthorized │ │ <────────────────────────── │ │ ACK │ │ ──────────────────────────> │ │ INVITE (SDP) │ │ ──────────────────────────> │ │ 100 Trying │ │ <────────────────────────── │ │ 180 Ringing │ │ <────────────────────────── │ │ CANCEL │ │ ──────────────────────────> │ │ 487 Request Terminated │ │ <────────────────────────── │ │ 200 OK │ │ <────────────────────────── │ │ CANCEL │ │ ──────────────────────────> │ │ 500 Server error │ │ <────────────────────────── │ │ 487 Request Terminated │ │ <────────────────────────── │ │ 487 Request Terminated │ │ <<<──────────────────────── │ │ 487 Request Terminated │ │ <<<──────────────────────── │ how to remove the second CANCEL?
if version: kamailio 4.4.4 (x86_64/linux) 852c47
10.1.244.235:5060 176.99.138.244:5060 ──────────┬───────── ──────────┬───────── │ INVITE (SDP) │ │ ──────────────────────────> │ │ 401 Unauthorized │ │ <────────────────────────── │ │ ACK │ │ ──────────────────────────> │ │ INVITE (SDP) │ │ ──────────────────────────> │ │ 100 Trying │ │ <────────────────────────── │ │ 180 Ringing │ │ <────────────────────────── │ │ CANCEL │ │ ──────────────────────────> │ │ 500 Server error │ │ <────────────────────────── │
Can you provide the pcap with the traffic for such case as well as the log messages from syslog with debug=3 in the kamailio.cfg?
Any chance to get the logs?
It seems I have the same issue in "CSeq issues with CANCEL after INVITE #918". The "CANCEL" is followed by "500 Server Error" from provider due to incorrect CSeq. Only happens when canceling the call before it's answered.
This should be fixed in master branch. If still problems, open a new issue with details about what happens using the latest master branch.
Closed #870.
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Daniel-Constantin Mierla -
greggcz
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sergey19