Video is turned on automatically when you join or are called from an unscheduled meeting in a channel. You can't change these video settings, but you can turn off your video once you're in the call if you don't need it.
Call type |
Video setting |
Unscheduled meeting |
Video on |
Group or 1:1 call from a chat |
Asks to join video |
Scheduled meeting |
Video off |