Hi Kamailio users

How can I get a failure route to trigger in timeout-to-CANCEL in

a parallel forking scenario?

Parallel forking test scenario

1. one(the main - 0) branch picks up the call

2. 2nd branch sends CANCEL (expecting 487 etc) - but the callee does not send any replies

Result:

No failure route handlers are called on timeout of this CANCEL - that is kamailio attempts the  CANCEL 4 times but neither

tm.t_on_failure_route, tm.t_on_branch_failure handlers are called.

Regards

Shih-Ping