Mute/Deafen Sounds when in call with less than X people.

It would be really nice to be able to tell when the person in a 1 on 1 call with you mutes or deafens themself, especially if one party only has one monitor and they are gaming. This could also be useful in small group calls, but could get out of hand in large group calls. A couple settings relating to this could also be reasonably implemented: enable/disable your own sounds, enable/disable other people's sounds, and the number of members in a call before the sound is enabled/disabled.