Hi Karsten,

See my prev email, just to record_route() before the t_relay() for the initial INVITE. And the loose_route() stuff for whatever sequential/in-dialog requests.

Best regards,

Bogdan-Andrei Iancu

OpenSIPS Founder and Developer
  https://www.opensips-solutions.com
OpenSIPS eBootcamp 23rd May - 3rd June 2022
  https://opensips.org/training/OpenSIPS_eBootcamp_2022/

On 3/31/22 2:50 PM, Karsten Wemheuer wrote:
Hi*,

I have a understanding problem regarding branches and call forking.
A call from a PBX is to be routed to phone(s) via OpenSIPS. The phones
are registered to OpenSIPs.

INVITE --> lookup ----> 1. Destination
                    |
                    \--> 2. Destination

When the call is terminated by the caller, the BYE request shall take
the same path. Currently, the BYE is sent from the PBX directly to the
Contact URI (which is not reachable by the PBX).

Is it possible to use record_route in the branch_route so that
different record route headers are used? Or is there another way?

Thanks in advance,

Karsten


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