Alex's suggestion works fine for me as well.

Have you tried using dialog functions, like so:

dlg_manage();

dlg_set_property("timeout-noreset"); # don't reset timeout on in-dialog messages reception

#set dialog properties. If any party disappears from the network - issue a BYE after timeout on OPTIONS

dlg_set_property("ka-src"); # send keep alive OPTION requests to caller

dlg_set_property("ka-dst"); # send keep alive OPTION requests to callee

On Wed, Aug 29, 2018 at 9:46 AM Alex Balashov <abalashov@evaristesys.com> wrote:

On Wed, Aug 29, 2018 at 01:43:52PM +0000, Hamid Hashmi wrote:

> I already tried this but it didn't work. There are no OPTIONS packet
> to caller or callee.

I use it; it works. I would troubleshoot that angle further.

--
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

_______________________________________________
Kamailio (SER) - Users Mailing List
sr-users@lists.kamailio.org
https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users