If your Interaction Notification Interaction Notification Alerts is turned on, you will be notified of the following incoming interactions:
- When an incoming phone call is being received.
- An email is being received.
- A chat session is being received.
- A callback phone call is being received.
- A scheduled dial out is being received..
When one of the above interactions is received, a notification alert appears in the task bar informing you that the new interaction is waiting for you. See sample screenshot of chat notification below. 
Note: The notification is displayed for 10 seconds before it disappears.