MS Teams - Answer a call
Desktop:
When someone calls you, you'll get a notification that lets you accept or decline the call.

- 
    Select Accept with audio or the Blue Phone icon to answer with audio only. 
- 
    Select Decline call or the Red Phone icon to decline the call and go on with your day. 
Mobile:
When a call comes in to Teams, a notification pops up, letting you know. Tap Answer or the Phone icon (the blue one!) to start talking.
Surface Hub:
When you get an incoming call, you’ll see an onscreen notification. Tap the notification to answer.
