On Thu, Oct 19, 2017 at 11:06:21AM +0300, Volkan Oransoy wrote:
> I wonder purpose of this block in default script. What I didn’t understand is
> the purpose of "t_check_trans()”. Accoording to documentation, this method
> returns a boolean. So why do we use it even we don’t check output?
>
> # handle retransmissions
> if (!is_method("ACK")) {
> if(t_precheck_trans()) {
> t_check_trans();
> exit;
> }
> t_check_trans();
> }
Because t_check_trans() has certain behaviours simply in virtue of being
called:
https://kamailio.org/docs/modules/5.0.x/modules/tm.html#tm.f.t_check_trans
For example:
"For ACKs to negative replies or for ACKs to local transactions it will
terminate the script if the ACK belongs to a transaction"
-- Alex
--
Alex Balashov | Principal | Evariste Systems LLC
Tel: +1-706-510-6800 / +1-800-250-5920 (toll-free)
Web: http://www.evaristesys.com/, http://www.csrpswitch.com/
_______________________________________________
Kamailio (SER) - Users Mailing List
sr-users@lists.kamailio.org
https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users
