[OpenSIPS-Users] OpenSIPS 3.2 B2B tutorial pre-paid example

[xaled at web.de]

Hi Răzvan,

Thank you for the reply.
Indeed I was able to get the prepaid B2B scenario running with all the needed headers once I understood the mechanics of B2B module.

Thank you and the team for the great module that will allow me to implement some very interesting scenarios!

Greetings,
Xaled

-----Original Message-----
From: Users <users-bounces at lists.opensips.org> On Behalf Of Razvan Crainea
Sent: Wednesday, April 14, 2021 3:25 PM
To: users at lists.opensips.org
Subject: Re: [OpenSIPS-Users] OpenSIPS 3.2 B2B tutorial pre-paid example

Hi, Xaled!

No, there should bot be an SDP, because you don't have an SDP (the media server is gone, and you don't know the callee's SDP). Instead, the module is doing a late negotiation to find out advertised caller's SDP, and present it to the new callee.

Best regards,

Răzvan Crainea
OpenSIPS Core Developer
http://www.opensips-solutions.com

On 4/14/21 3:17 PM, xaled at web.de wrote:
> Hi,
> 
> could somebody please shed some light on this scenario?
> 
> Thanks,
> Xaled
> 
> -----Original Message-----
> From: Users <users-bounces at lists.opensips.org> On Behalf Of 
> xaled at web.de
> Sent: Sunday, April 11, 2021 11:59 PM
> To: 'OpenSIPS users mailling list' <users at lists.opensips.org>
> Subject: [OpenSIPS-Users] OpenSIPS 3.2 B2B tutorial pre-paid example
> 
> Hi,
> 
> I tested the 3.2  Prepaid example from B2B tutorial
> 
> https://www.opensips.org/Documentation/Tutorials-B2BUA-3-2
> 
> In Scenario Schema there is a first reinvite from OpenSIPS B2B to caller - this reINVITE in my tests comes without SDP. Should not there be an SDP, or am I missing something in this scenario?
> 
> INVITE sip:TEST001 at 1.2.3.201:5060;transport=tcp SIP/2.0
> Via: SIP/2.0/TCP 1.2.5.183:5060;branch=z9hG4bKb5b7.1ffbf7b1.0
> To: <sip:+12345678 at sip.test.com;transport=TCP;user=phone>;tag=f79aacce
> From: 
> <sip:+87654321 at sip.test.com;user=phone>;tag=B2B.81.186.1618177460
> CSeq: 3 INVITE
> Call-ID: 80a9a9cfbe9920f8 at 1.2.3.201
> Max-Forwards: 70
> Content-Length: 0
> Contact: <sip:1.2.5.183;transport=tcp>
> 
> Thanks,
> Xaled
> 
> 
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