Using iOS?
Press the blue check mark icon that says “Accept” when the call pops up on your screen.
Using Android?
Swipe the green phone icon 
to the right when the call pops up on your screen.
- You can also answer by pressing the drop-down incoming call notification. Press “Take call”
Using macOS?
Click the Green “Accept” Phone icon when the call pops up on your screen.
- You can also answer the call from the drop- down banner notification, by clicking “Answer”.
Using Desktop PC?
- Click the green phone icon when the call pops up on your screen.