[OpenSIPS-Users] PRACK support / configuration

[Bogdan-Andrei Iancu]

Hi Mario,

First of all, you need to pick one b2b or dialog - you cannot use both 
in the same time for the same call.

Secondly, please see the B2B tutorial 
(https://www.opensips.org/Documentation/Tutorials-B2BUA) - once you 
started the B2B session (by the b2b_init script function), the control 
over the call is passed to the b2b module, so no script returning.

The b2b module will take care of your call from that point further, 
there is nothing for you to do.

Best Regard,

Bogdan-Andrei Iancu

OpenSIPS Founder and Developer
   https://www.opensips-solutions.com
OpenSIPS Summit, Amsterdam, May 2020
   https://www.opensips.org/events/Summit-2020Amsterdam/

On 4/9/20 8:11 AM, Mario San Vicente wrote:
> Hello Everyone,
>
> I have been trying to enable PRACK support, and on the docs it says it 
> is supported on module b2b_entitier
>
> modules/b2b_entities/dlg.c
>
> /* PRACK handling //
> // if the provisional reply contains a
>
>   * Require: 100rel header -> send PRACK */
>
> It also says that B2BA top hiding is a predefined service that works 
> without any scenario definition and for any type of dialog.
>
> So I am traying to enable top hiding to get the PRACK working.
> just adding thhe line:
>
> b2b_init_request("top hiding");
>
> But when i add this line, the call flow stops working.
>
> Any advice on how to configure this feature?
>
> NOTE: In my working configuration i have a dialog created, just to let 
> you know if that is supported at the same time.  top hiding and dialog.
>
> Thank you
>
> -- 
> Mario San Vicente
> Cheers!
>
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