Comment by prmoustache

> c) Slack does not support audio calls. Not sure why, but it doesn't work in Firefox. Teams does work just fine. Fortunately all work meetings are done via Teams and all people on Stack are also on Teams so if someone wants an audio call we use Teams, but still, a negative for Slack.

My slack experience is old so I don't remember but on msteams there aren't audio calls at all. All calls all video calls, the only difference the audio/video call buttons do is wether your webcam will be activated or not from the beginning but you can still disable it before joining on a video call and you can always activating your camera even if you pressed the telephone looking button to start the call.