5 Jan
2022
5 Jan
'22
12:36 p.m.
Hi Nick,
I think it might be worthwhile to ask why you want to provide these arguments to
t_relay(), even though it can take them.
There is a common and understandable misconception among new users that specifying these
arguments is the way to tell Kamailio the destination to which a message should be
relayed. In fact, it’s not the canonical way it is done.
t_relay() consumes the domain part of the request URI ($ru):
$ru = “sip:" + $rU + "@10.0.1.1:5060”;
# or
$rd = “10.0.1.1”;
If the domain in the RURI is different than the desired network destination, the
“destination URI” can be used to override this:
https://www.kamailio.org/wiki/cookbooks/5.5.x/pseudovariables#du_-_destinat…
$du = “sip:10.0.1.1:5060”;
These values can of course be constructed from variables as well.
So, it is likely the case that you don’t need to call t_relay() with arguments at all.
:-)
— Alex
On Jan 5, 2022, at 3:21 AM, Nick J
<nick(a)nickvsnetworking.com> wrote:
Hi all,
I've been banging my head on the table with this one and hoping someone has some
insight here.
I'm trying to use a variable as the host & port input in t_relay() -
t_relay(host, port)
This works fine if statically set:
t_relay("10.0.1.1", "5060");
But if I change the host or the port to a variable like this:
$avp(destip) = "10.0.1.1";
$avp(dstport) = "5060";
t_relay($avp(destip), $avp(dstport));
Then Kamailio fails to start, calling out the t_relay line:
kamailio: CRITICAL: <core> [core/cfg.y:3686]: yyerror_at(): parse error in config
file /etc/kamailio/kamailio-routelogic.cfg, line 62, column 35: bad command
I get the same behavior with pseudovariables and vars as well:
$var(destip) = "10.0.1.1";
$var(dstport) = "5060";
t_relay($var(destip), $var(dstport))
Any tips or pointers would be much appreciated.
Thanks!
Nick
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--
Alex Balashov | Principal | Evariste Systems LLC
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