Is it ok? Is there something else you recommend instead? I tried nextcloud talk and it was pretty bad. Jitsi was ok but self hosting it looked complicated. FOSS only, of course.
Are you sure the phone it doesn’t work on is older than android 7? According to its f-droid jami URL its latest version as well as two more also documented there, they all work on android 7 or later.
I use LOS4uG, and I’m currently on android 14, so no need to build jami myself. Can you enable “unstable updates” on f-droid’s “expert mode”? Perhaps then you get latest app, and that one works better. Otherwise you can report an issue to the android client, and perhaps you get guidance from them. You can also use their forum to ask questions. I have filed issues only so far.
