[OpenSIPS-Users] loose_route with opensips 3.2 B2B module

[Bogdan-Andrei Iancu]

Hi Xaled,

The record routing is incompatible with the b2b, by SIP definition. The 
record routing is done only by a SIP proxy, not by a SIP b2b2.

Regards,

Bogdan-Andrei Iancu

OpenSIPS Founder and Developer
   https://www.opensips-solutions.com
OpenSIPS Bootcamp 2021 online
   https://opensips.org/training/OpenSIPS_eBootcamp_2021/

On 4/11/21 9:32 PM, xaled at web.de wrote:
> Hi,
>
> would it be possible to respect loose routing on the caller side of B2B module and set route header on the callee side accordingly
>
> Something like this:
>
> Incoming INVITE:
>
> INVITE sip:+12345678 at 1.2.3.4;user=phone SIP/2.0
> Via: SIP/2.0/TCP 4.3.2.1:5060;branch=z9hG4bK40365b83fb9732a054d124bb46252151.7242beeb
> Route: <sip:orig-test at test.com:5060;transport=tcp;lr>, <sip:605e7788/5.1.0.17 at 4.3.2.1:5060;transport=tcp;lr>
>
> Wanted outgoing INVITE:
>
> INVITE sip:+87654321 at 1.1.1.1;user=phone SIP/2.0
> Via: SIP/2.0/TCP test.com;branch=z9hG4bK40365b83fb9732a054d124bb46252151.7242beeb
> Route: <sip:605e7788/5.1.0.17 at 4.3.2.1:5060;transport=tcp;lr>
>
> I tried setting loose_route in both the original route and in the resulting b2b route but without success.
>
> route[b2b_test_logic] {
>
> <------>loose_route();
>
>      if ($rm != "BYE") {
>          # for requests other than BYE, no special actions needs to be done,
>          # just pass the request to the peer
>          b2b_pass_request();
>          exit;
>      }
> ...
>
> Thanks,
> Xaled
>
>
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