[OpenSIPS-Users] How to Solve 'Discarding fwd for a 6xx Transaction'?

[Liviu Chircu]

On 25.09.2020 12:55, Diptesh Patel wrote:
> I want to fail-over my call on 6xx response and I use failure route 
> for that but t_relay() gives below errors and reply with '500 No 
> destination available (18/SL)'.
>
> Sep 25 05:47:10 OLD-OVW-SBCA01 /usr/local/sbin/opensips[28174]: 
> INFO:tm:t_forward_nonack: discarding fwd for a 6xx transaction
> Sep 25 05:47:10 OLD-OVW-SBCA01 /usr/local/sbin/opensips[28174]: 
> ERROR:tm:w_t_relay: t_forward_nonack failed
>
> Anyone have an idea how I can resolve this?

Hey, Diptesh!

That is the standard RFC behavior.  In real-life, you may want to 
disable this quirk and retry to a new gateway, by setting 
"disable_6xx_block" [1] to true.

Best regards,

[1]: https://opensips.org/docs/modules/3.2.x/tm.html#param_disable_6xx_block

-- 
Liviu Chircu
www.twitter.com/liviuchircu | www.opensips-solutions.com