[Asterisk-Dev] SIP channels not cleared

[Olle E. Johansson]

Chee Foong wrote:
> Hello,
> 
> I have tested with the vendor, they send a CANCEL instead of BYE. Another
> problem came out:
> 
> When the other end send CANCEL, asterisk response with "487 Request
> Terminated" then a "200 OK" for the CANCEL.
> The problem now is the other end expect "200 OK" first then "487 Request
> Terminated". This make asterisk retransmit the "487 Request Terminated"
> because it did not get an ACK. The second "487 Request Terminated" that
> asterisk sent got an ACK back from the other end. Call terminated, but again
> sip channels stays not cleared.
> 
> I have been scratching my head for the past 2 weeks, trying to figure out
> who is actually sending the wrong stuff.
> 
Please turn on SIP history and try to capture the history of one of
those hanging channels.

/O