I don't answer when I don't recognize the number, but I receive so many calls from this number, which is obviously a robo call, that it has become a problem.
Someone from the above number have called here with a recording asking if you want "do not call" press one. They have called here the last two days. After I push one like they said, a few minutes later they call again with the same message.
By pressing one, you told the scammers that your number is active, and someone will actually answer the phone. You can expect more calls from them, as well as other scammers.
I don't answer when I don't recognize the number, but I receive so many calls from this number, which is obviously a robo call, that it has become a problem.