I have a Google Pixel phone, and it lets me screen the calls before I answer. When the phone rings, it says "Answer" "Decline" or "Screen" or something like that. When I hit "Screen" it answers (Google answers) the phone with their automated voice, saying something like "please state why you're calling" and when they respond it prints out the text, I can hit buttons to answer with the Google voice.
Here's a video from Youtube/Google:
https://www.youtube.com/watch?v=EML41O7dJ6s
and another demo:
https://www.youtube.com/watch?v=RvFjUcciMEA
Pretty handy, and their older Pixel phones are pretty inexpensive!