By default, your presence status is automatically set based on your activity on Avaya Vantage™ built-in UC experience. For example, when you are on a call, other users see your status as On-Call. If your device is idle for a specific duration, your status changes to Away. You can modify the idle time, after which your status changes to Away automatically.
If you want, you can change your presence status in Avaya Vantage™ built-in UC experience manually.