Setting up call screening
Go to Settings > Additional and click Enable incoming call screening, and then Save changes to turn the feature on.
Using call screening once it's enabled
With every incoming call you receive, there will be a quick call menu presented to you, saying something along the lines of:
Press 1 to accept this call;
Press 2 to decline and send this call to voicemail;
Press 3 to decline and send this call to voicemail, and set your status to DnD.
Which devices support call screening?
You can screen calls on any device: