[OpenSIPS-Users] How to reach failure_route if remote end doesn't reply on INVITEs

[M S]

You can set DLG_timeout to 2sec for failure route to work, then also look
for ACK in main route to set DLG_timeout to 3600 (for example) if the call
was answered.

On Thu, Jul 13, 2023 at 10:28 AM Simon Gajski via Users <
users at lists.opensips.org> wrote:

> Hi
>
> I am running opensips 2.1.1 and have a question regarding accessing
> failure_route.
>
>
> In case I send INVITE to some destination where I receive 3xx, 4xx or
> 5xx reply, call goes to failure_route and uses next gw from there.
> Everything fine so far.
> But in some cases it hapens that opensips sends INVITE to a destination
> from where there is no reply.
> In this case opensips repeatedly sends INVITEs to that destination and
> doesn't do failover to failure_route.
>
> I played so far with $DLG_timeout variable, set to 2 sec.
> In this case opensips does failover to failure_route after 2 sec,
> however established call via next gw is also terminated after 2 sec.
>
>
> Is there another way to reach failure_route if remote end doesn't replay
> in expected time?
>
> BR
> Simon
>
>
>
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