I have similar experience with SimpleX Chat calls, which uses WebRTC. A Thread of Privacy Apps to consider - #38 by prkl On Jolla Phone end I can hear audio only sometimes when pressing mute/unmute several times. If the audio channel wakes up, it’s many times delayed and distorted. Other way audio works fine. Video is ok both ways. If I undestood correctly, also Teams is still using WebRTC, but not for very long. https://techcommunity.microsoft.com/blog/microsoftteamsblog/the-next-chapter-of-microsoft-teams-in-virtualized-environments/4498259