We see issues with a setup running with mobile apps.
Interestingly, we have 2 server setups based on 2 providers and domains.
One is working nicely, including turn configuration as a primary setup,
both based on a single separate instance, rather default setup, Ubuntu 18, jitsi meet, turnserver, prosody config.
The 1st server is working well, also in meetings between mobile and desktop.
The 2nd server shows a strange issue, all calls from mobile devices do not show video,
only audio for the participants. Both for 2 way or 4 way calls. 2 desktop, 2 mobile,
mobile video is nowhere shown only on the app preview, desktop all works fine.
We were searching through all configs and logs and suspect the turnserver configuration,
and maybe a relation to any ISP based firewall, although the configs are the same.
Any idea how to track these issues and where to look?
turn_… log, syslog, … webrtc-internals…