Re: [Users] provisional_reply_timer

Ovidiu Sas wrote: I recently had a look at the timer related source code and that is what I wrote down: - Each SIP transaction has a final response timer (FRT) - SIP transactions fail (failure_route, status 408) when FRT fires - TM module exposes final response timers (FRT) fr_timer and fr_inv_timer (can be set using AVP) - INVITE transactions: FRT initially equals fr_timer and gets set to fr_inv_timer after receiving first provisional response

- setting fr_timer to a low value (e.g. 3s) allows for fast INVITE failover So I'm setting fr_timer to a low value for local INVITE transactions. Local here means sessions between endpoints from our network domain. Something along the lines: route[0] { if (method==“INVITE”) { # set fr_timer to 3 seconds avp_write("i:3", "$avp(fr_timer)"); # call FAILURE_DEFAULT_RELAY routing block on transaction failure t_on_failure("FAILURE_DEFAULT_RELAY"); t_relay(); exit; } } failure_route[FAILURE_DEFAULT_RELAY] { # status 408 ? transaction timed out if (t_check_status("408")) { # try next target if (ds_next_domain()) { t_relay(); } } } - Christian ------------------------------------------------------------------------ _______________________________________________ Users mailing list Users(a)openser.org http://openser.org/cgi-bin/mailman/listinfo/users