Thanks @brito I use and have supported #0xChat for months - note1wcqhlm5475qv38kxphnhpgv3crgc3745u98j57ayzg3rf8wp5pmsugvlzg Unfortunately we've had similar problems with 0xChat calls despite also setting up my own TURN server.

Secure Messaging Apps Comparison | Privacy Matters

This site compares secure messaging apps from a security & privacy point of view. These include Facebook Messenger, iMessage, Skype, Signal, Simple...