My private groups solved this by using Matrix for text chat and Mumble for voice. It has push-to-talk and outstanding sound quality. Hosted Mumble servers are cheap, and self-hosting is pretty easy.
When Element Call (MatrixRTC) eventually leaves beta, we might switch to that, but it’s hard to beat Mumble for audio.
My private groups solved this by using Matrix for text chat and Mumble for voice. It has push-to-talk and outstanding sound quality. Hosted Mumble servers are cheap, and self-hosting is pretty easy.
When Element Call (MatrixRTC) eventually leaves beta, we might switch to that, but it’s hard to beat Mumble for audio.