Presence is an indicator color that lets you know if the contacts in your list are online, or busy, or doing something else. The same applies to contacts that have added you to their list. They can see your presence:
These presences can be set by you manually by clicking on the dropdown under your name or they may be set automatically by the system. Since, everything in Office 365 is tied together, Skype for Business can read your Outlook calendar and know when you are in a meeting and it will change your presence for you when the time comes as well as when the meeting is over. It will also change your presence when you start and end an audio or video call and when you start and stop sharing your screen.
It is important that you understand...