Below is the example from http://kamailio.org/docs/modules/3.2.x/modules/tm.htm
:
failure_route[0]{
if (t_check_status("5[0-9][0-9]")){
# I do not like the 5xx responses,
# so I give another chance to "foobar.com",
# and I drop all the replies to make sure that
# they are not forwarded to the caller.
t_drop_replies();
rewritehostport("foobar.com");
append_branch();
t_relay();
}
}
Why do append_branch() is present before t_relay().
I'm asking because I didn't used it in failure routes and call rerouting on
various conditions worked great.
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