[OpenSIPS-Users] How to delay a branch

[ryan embgrets]

Thanks everyone for your valuable feedback.

I think we can send the branches to be delayed back to opensips and in this
way, it would be a new call in opensips so we can easily handle it with
extra configs.

Anyways, we changed the business logic a bit(send to phones only if
registered) and were able to handle them using branch params.

Ryan.

On Fri, 24 Jul 2020 at 18:51, Liviu Chircu <liviu at opensips.org> wrote:

> On 24.07.2020 16:25, Ben Newlin wrote:
>
> I think the issue here is that the sleep function pauses the OpenSIPS
> process in which it is running; it doesn’t matter what type of route you
> call it in, the whole process will sleep. Since all message processing, and
> all branch routes, are running in the same process then sleeping that
> process will delay everything.
>
>
>
> Even asynchronous sleep is performed by suspending all message processing
> for that message, not individual branches.
>
> Spot on, Ben!  All branches are forked out by the same process: if you
> pause it, you pause the forking of the remaining branches in the set...
> which somehow leads me to believe that doing an async(sleep) after
> t_relay()'ing the last mobile phone branch _should work_, at least in
> theory... such that after the sleep is completed, the remaining branches in
> the set will be forked out.
>
> Now, the tricky part is making sure that the mobile phone branches are
> always ahead of the desk phone ones, so they parallel fork first.  I do not
> see an easy solution to this, nor are there any handy script functions to
> help you do this... you will have to "swap" the branch data around using
> the $branch properties and other variables (e.g. $ru, $du, $socket_out)
> until you obtain the desired effect.
>
> Curious to hear other opinions as well :)
>
> Best regards,
>
> --
> Liviu Chircuwww.twitter.com/liviuchircu | www.opensips-solutions.com
> OpenSIPS Summit 2020 Distributed
>   www.opensips.org/events/Summit-2020Distributed
>
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