Hello,
what do you want to do when the 2nd branch does not reply a 487 to the internally generated CANCEL? Send it another four times? This branch has ended already, due to the pickup on the 1st branch.
Cheers,
Henning
From: Richard Chan shihping.chan@gmail.com Sent: Freitag, 31. März 2023 02:12 To: Kamailio (SER) - Users Mailing List sr-users@lists.kamailio.org Subject: [SR-Users] CANCEL timeout in branch route does not trigger any failure routes
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.
Any suggestions on how to resolve this?
Regards Shih-Ping