sadly, it’s a little more complex than just enabling it. The supported self host deployment uses docker, and the docker containers that are available don’t contain the interfaces for voice or video calling as they are not up to date.

If I understand it right, to enable it would mean you need to either pull the source yourself and run it off of docker, or make a custom docker image using a version of stoat web that contains the ability to do voice calls.

reading the draft of the linked issue, it looks like they the author isn’t doing voice call for the reason that they don’t know the proper way to integrate it into the docker image.

So to answer it: yes you can use voice servers on the current self hosted model, but you can’t use pre-existing docker images, and it will require you to manually add the new web UI in and patch where needed.