It is most important in calls with 6+ participants. It gives folks a chance to signal that they have something to say when many times a call may be dominated by

It is most important in calls with 6+ participants. It gives folks a chance to signal that they have something to say when many times a call may be dominated by one or two individuals. Perhaps there are other approaches for that particular case such as a button to 'raise your hand', however, many people have friendly relationships with their colleagues and simply enjoy seeing them when conversing.