Andrei Pelinescu-Onciul wrote:
On Oct 05, 2009 at 17:12, Martin Hoffmann martin.hoffmann@telio.ch wrote:
Similarly, fr_timer indicates the time after which resending of a 2xx response upstream will cease, if no ACK has been received.
^^^^ negative response to an invite (it has nothing to do with 2xx/ACK which are end-to-end, but with negative replies replies for INV and ACK)
Er, yes. Of course.
But if it gets split, rather use nr_inv_timer and fr_inv_timer or somesuch, to make it a bit more telling. Or use, what is it? A and C?
There is not a 1:1 mapping between the RFC timers and the tm timers. According to the RFC we should use only fr_inv_timer all the time for INVITEs :-) (so no fast failover, voicemail a.s.o)
After reading: Isn't fr_timer corresponding to timer B and fr_inv_timer to C? Which actually would mean that you shouldn't mess with fr_timer and keep it at 32 seconds and are free to mess with fr_inv_timer but make it reasonably big?
See also https://sip-router.org/wiki/ref_manual/timers , which is a more complete description, including corresponding RFC timer names.
See? ;)
Regards, Martin