[SR-Users] [kamailio 3.1.2] timer issue

[Ravi DHIRAJLAL]

Hi Daniel

we've installed kamailio 3.1.2 but we have a problem in some type of 
calls towards IVR machine :

an INVITE is replied after a few seconds by 183 session progress
starting from that 183, the caller hears a (waiting) message and can 
choose between several options by sending DTMF tones, like voicemail 
consulting. the
the 183 is sent by far end at 1min interval during the waiting. all 183 
are forwarded to the caller
the waiting time can last long, after which a human operator answers the 
call and  a 200 ok is replied.
but i noticed that after receiving a total of 3 183 session progress, 
(so 2mins from initial INVITE), then 1 more minute, kamailio sends a 408 
timeout to the caller and cancel towards callee. so the calls is hanged 
up after 3 mins, that means the caller can't wait more than 3mins.

i already tried all timers like fr_timer, fr_inv_timer, 
max_inv_lifetime, restart_fr_on_each_reply...
but long waiting calls are automatically hanged up at 3mins.

i read an old post at 
http://www.mail-archive.com/users@lists.kamailio.org/msg04711.html
in which you send a patch to apply

i'd like to know if you have a clue to this problem. do you have a same 
patch for 3.1.2 ?

thank you very much

best regards