When you join or host calls, it is recommended to use a noice cancelling headset.
This is healthy to straighten your legs and stretch often. Therefore, choose a wireless headset - cables shouldn't limit your movement.
We recommend Plantornics Voyager UC as currently the best headset on the market (within a reasonable price range).
You can use any headset of your choice, and it's not a requirement to use any headset at all. It is however your responsibility to maintain low background noise during calls so that other participants are not disturbed.