Unwillingness to use the camera when others have it on
As Entrepreneur.com states, a classic breach of etiquette is not turning on your camera while others have it on. This creates a situation where your counterpart is showing their face during the call, whereas they can only hear you. Turn on your camera if possible; if you have any doubts, you can clarify with the participants whether or not you will all turn on your camera beforehand.
Arriving late
For some reason, being late to a video call seems more acceptable to some people than being late to a physical meeting. In principle, however, there is no difference. Nor do technical problems, often used as an excuse, justify a late arrival.
Working on a computer or looking at your mobile phone during a call
Some people use a video call to work on their computer or mobile phone. And they do this while the camera is on. They may think the other participants won't notice they aren't paying attention, but the opposite is true.
Interrupting (or even muting) others
Interrupting others when they are speaking can be even more frustrating and annoying during a video call than in a traditional conversation. A major offence is then turning off the microphone of other participants without their permission.
Inviting unannounced guests
Inviting someone to an online meeting is very easy; however, it is not always desirable. Whenever you want to invite someone else to the meeting, ensure that all other participants know about it so that it will not come as a surprise to them.
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