Congratulations. By calling back and pressing 1, you have confirmed to the robo-callers that they have a live number, with someone who will easily fall for their scams. And they will sell your number to other scammers. Get ready for an avalanche of SCAMMER calls.
Why do people post if they have no knowledge of what the call was about?? Anyway, it starts out as a recorded message that they are responding to my interest in a back brace I saw on TV. I have never expressed any interest in it, so I pressed "2" when prompted to press it if no longer interested. When I pressed 2, I will still transferred to a live person, who promptly hung up when I said I wasn't interested.