[OpenSIPS-Users] B2B prepaid.xml with one MediaServer

Bogdan-Andrei Iancu bogdan at opensips.org
Fri Jun 16 10:56:25 EDT 2017

Hi Andreas,

You don;t have to change anything in the opensips script (for adding the 
pre-call media server), but only in the XML scenario.

Take a look at the marketing scenario (in the B2B tutorial), where after 
a caller is connected to an announcement, upon announcement termination, 
the call is sent to callee side.

Could you post your XML scenario ?

Best regards,

Bogdan-Andrei Iancu
   OpenSIPS Founder and Developer

OpenSIPS Bootcamp 2017, Houston, US

On 06/13/2017 01:22 PM, Andreas Bøckmann wrote:
> Hello
> I wanted to test the B2B script-scenario prepaid from the B2BUA tutorials.
> The only change I wanted was to only invoke a MediaServer before 
> connecting the call to B-party.
> Note my OpenSIPS is running regular proxy/registrar functions besides B2B.
> The B2B is able to setup the call towards MediaServer and trigger on 
> receiving BYE.
> The next leg towards the actual B-party is not setup as OpenSIPS 
> doesn't see this as B2B? but does authorization for that INVITE 
> request, which fails.
> I believe it's due to the B2B doing somethingsomething to my URIs 
> and/or CSEQs.
> My issue seems very much like something I found in a previous post 
> (https://opensips.org/pipermail/users/2010-February/010931.html) but 
> there was no final solution.
> I trigger this for the initial INVITE as such:
>     if ($rU =~ "^\+1234567890.*") {
>         # t_newtran is necessary because b2b should not handle 
> retransmissions.
>         if (!t_newtran()) {
>            sl_reply_error();
>            exit;
>         }
>         xlog("L_WARN","B2BUA cid=$ci, Call from $fU to $rU initialized 
> as B2B\n");
>         b2b_init_request("freecall", "sip:+9999 at 
> <http://sip:+9999@>");
>         exit;
>     }
> My B2B scenario file: https://pastebin.com/KwpgJziL
> Any clues to what the solution from Anca was in the original post 
> referenced above or any other ideas as to what I am doing wrong here?
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