[OpenSER-Users] Explanation of 0x02 in "t_relay()" ?

[Bogdan-Andrei Iancu]

Hi Iñaki,

by "failure" it means a failure of the "relay" action - so, if t_relay() 
is not able to forward the request (due internal error, bad RURI, bad 
message, etc), with no 0x02 flag, the t_relay() function will 
automatically send back a negative reply and return true in script. Of 
course, this behaviour does not allow you to do any kind of failure.

So, the idea is about the type of failure - it is a forward error (when 
nothing was put on network) and not a SIP failure (negative reply or 
timeout).

Regards,
Bogdan

Iñaki Baz Castillo wrote:
> Hi. I read in "t_relay" doc:
>
> --------
> 0x02 - do not internally send a negative reply in case of failure. It applies 
> only when the transaction is created. By default one is sent. Useful if you 
> want to implement a serial forking in case of failure. 
> --------
>
> Could you please explain it a little more? I use failure_route with 
> append_branch and before it OpenSer doesn't send back a negative reply to 
> caller (in fct it would end the transaction). What the purpose of this bit 
> option?
>
> Thanks a lot.
>
>
>