[SR-Users] Failure route with t_relay()

[Alex Balashov]

Hi Max,

This is one of those requests that sounds a little peculiar. It might help if you shared the larger problem you are trying to solve; perhaps there is a better approach altogether.

Notwithstanding that, you need to create a new branch in the failure_route. This happens in one of two ways:

1) Explicitly, with append_branch(); your not having done this is what the log is complaining about; 

2) Implicitly, by modifying the Request URI in some way, e.g.

   $ru = “...”;

However, I do not believe modifying the destination set ($du) triggers the implicit creation of a new branch. Accordingly, you will need to call append_branch() yourself prior to t_relay().

— Alex

> On Feb 8, 2022, at 12:29 PM, Max Kemel <max at telemessage.com> wrote:
> 
> Hey, I am trying to make a re-transmission mechanism from the failure route,
> I’ve tried to use $dp and $du as a relay, but variables are not accepted in t_relay(),
> When using ip and port straight forward t_relay(“144.0.0.0”, “1111”), I am getting:
>  
> [t_fwd.c:1752]: t_forward_nonack(): no branches for forwarding
> [tm.c:1753]: _w_t_relay_to(): t_forward_noack failed
> 
> Is there a way to re-transmit the call to the same carrier again?
> Thanks in advance, and have a great day,
> Max Kemel
>  
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-- 
Alex Balashov | Principal | Evariste Systems LLC

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