I am very sick of all the pointless phone calls where you don’t even end up with the details in writing. People just expect you to pick-up or respond in a moments notice no matter what you’re doing or where you are. I’d rather just cut the feature entirely.
I don’t think this can be done. In me settings I silence all unknown callers so if they aren’t in my contacts I never see the call. They can still leave a message though.
I have special ringers for my wife and my Doctor’s clinic. The general ringer for everybody else is silent, vibrate off. The outgoing message says the voice mail is not monitored as I am hearing impaired so sent an email or text. I rarely get a text, and my outgoing message is 32 seconds long so messages from robocalls are usually over before anything is recorded.