[SR-Users] t_on_failure => what variables being reset to which values?

[Igor Olhovskiy]

Benoît,

On which route do you send those variables?

Regards,
Igor

Le 28.02.2022 à 09:58, Benoît Panizzon a écrit :
> Hi List
>
> We t_on_failure re-route calls to another destination in case one fails
> for example announcement servers...
>
> Before sending to the announcement server I do add some extra header to
> define which announcement in which language should be played:
>
>          append_hf("IMP-annc: $avp(announcecode)\r\n");
>          append_hf("IMP-mandate: $avp(mandate)\r\n");
>          append_hf("IMP-language: $avp(callerlang)\r\n");
>
> Also $rU is being set prior to sending the call to the announcement
> server.
>
> Now one of our announcement servers became unavailable and t_on_failure
> was triggered.
>
> The 2nd announcement servers was receiving the calls without any of the
> additional header and with the 'inbound' $ru without the altered $rU
>
> https://www.kamailio.org/docs/modules/devel/modules/tm.html#tm.f.t_on_failure
>
> I'm a bit confused by that, as this states the URI is reset to the
> value it had on 'relaying'. Is this on 'inbound replaying' or on
> 'outbound relaying' when route(RELAY) was called to send the call TO
> the first annoucement server?
>
> Is there a bit more specific information on that behaviour?
>