[SR-Users] Kamailio : Parallel Forking

Paclinio thomas.leutscher at gmail.com
Tue Mar 22 15:42:14 CET 2022


Dear,

Following the configuration available on the TM Modules documentation. Src
:
https://www.kamailio.org/docs/modules/devel/modules/tm.html#tm.serial_forking

request_route {
>   seturi("sip:a at example.com");
>   append_branch("sip:b at example.com");
>   append_branch("sip:c at example.com");
>   append_branch("sip:d at example.com");
>
>   t_relay();
>   break;
> }
>
> My code :

request_route{
>
$var(uri1)="sip:9919995 at 192.168.1.41";
> $var(uri2)="sip:9919992 at 192.168.1.41";
> $var(uri3)="sip:9919991 at 192.168.1.41";
> $var(uri4)="sip:9919994 at 192.168.1.41";
>
> append_branch ("$var(uri1");
> append_branch ("$var(uri2");
> append_branch ("$var(uri3");
> append_branct_("$var(uri4");
>
t_relay();
> break;
>
}
>

The server send INVITE to himself.

 Fixing the problem :

request_route{
>
$var(uri1)="sip:9919995 at 192.168.1.41";
> $var(uri2)="sip:9919992 at 192.168.1.41";
> $var(uri3)="sip:9919991 at 192.168.1.41";
> $var(uri4)="sip:9919994 at 192.168.1.41";
>
> lookup("location","$var(uri4)");
> append_branch();
> lookup("location","$var(uri1)");
> append_branch();
> lookup("location","$var(uri2)");
> append_branch();
> lookup("location","$var(uri3)");
>
    t_relay();
>     break;
>
>     }
>

Is this the correct way ?
Best regards.
Thomas

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