<p>When you call, we use dlg_manage (); function to authorize the ISP with the following settings dialog module<br>
loadmodule "dialog.so"<br>
modparam ( "dialog", "enable_stats", 0)<br>
modparam ( "dialog", "db_url", DBURL)<br>
modparam ( "dialog", "db_mode", 1)<br>
modparam ( "dialog", "table_name", "dialog")<br>
modparam ( "dialog", "dlg_match_mode", 1)<br>
modparam ( "dialog", "dlg_flag", 4)<br>
modparam ( "dialog", "track_cseq_updates", 1)<br>
When sending a request ISP CANCEL get answers to 200 and 487, but instead of ACK otpralyaem COI new CANCEL.</p>
<p>10.1.244.235:5060            176.99.138.244:5060│<br>
──────────┬─────────          ──────────┬─────────<br>
│                             │<br>
│                             │<br>
│                             │<br>
│                             │<br>
│        INVITE (SDP)         │<br>
│ ──────────────────────────> │<br>
│      401 Unauthorized       │<br>
│ <────────────────────────── │<br>
│             ACK             │<br>
│ ──────────────────────────> │<br>
│        INVITE (SDP)         │<br>
│ ──────────────────────────> │<br>
│         100 Trying          │<br>
│ <────────────────────────── │<br>
│         180 Ringing         │<br>
│ <────────────────────────── │<br>
│           CANCEL            │<br>
│ ──────────────────────────> │<br>
│   487 Request Terminated    │<br>
│ <────────────────────────── │<br>
│           200 OK            │<br>
│ <────────────────────────── │<br>
│           CANCEL            │<br>
│ ──────────────────────────> │<br>
│      500 Server error       │<br>
│ <────────────────────────── │<br>
│   487 Request Terminated    │<br>
│ <────────────────────────── │<br>
│   487 Request Terminated    │<br>
│ <<<──────────────────────── │<br>
│   487 Request Terminated    │<br>
│ <<<──────────────────────── │<br>
how to remove the second CANCEL?</p>

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