[SR-Users] Callback for TM?s "fr_inv_timer" ?

[Antonio Couto]

Thanks for your support, I am trying to do this but to be honest I don't
know
how to arm the failure route for this case of "fr_inv_timer".

When I received reply 183 I use t_set_fr() function to set the new value
for "fr_inv_timer",
do far so good, but I never received failure_route[0] when Kamailio
terminate the call sending 408,
even calling like this:

t_on_failure("0");
t_relay();

I can't find on documentation how to do this.
Thanks a lot
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