I don't understand what's meant by on-phone, but the google feature asks the caller to introduce themselves and why they're calling, and transcribes the response for the user to read in realtime.
I use it for every number I don't know, and so far it's been 100% successful (in the sense that, afaik, no one who I wanted to hear from has hung up on Google Assistant).
I use it for every number I don't know, and so far it's been 100% successful (in the sense that, afaik, no one who I wanted to hear from has hung up on Google Assistant).