Sorry, it's strange, I've tested now and
OpenSer generates the CANCEL and
408 even if "noisy_ctimer" is 0. I can sure that time ago I tryed it and
just generated them if that parameter wa set to 1. ¿?¿
So, you tested fr_inv_timeout and OpenSER generated both 408 and CANCEL
even if the noisy_ctimer parameter is off. If you confirm that CANCEL is
sent even if noisy_ctimer is off then we need to open a bug report on
the tracker.
Yes, ok, let me try it tomorrow again. If I say nothing please reminder me ;)