To revert from the status you set and have Skype for Business automatically update your status, click the status menu and then click Reset Status.
Presence is automatically set based on your Outlook calendar, but you can change it manually if you want to.
As an example, if you have a meeting currently scheduled in Outlook, your status appears as “In a meeting” in Skype for Business.
Set automatically for you based on your Outlook calendar.
You can also set your presence to this anytime you want.
Your status is based on your Microsoft Outlook Calendar, if you use Outlook, or your Lync activities.