Apparently a " can you hear me scam" they ask that you say yes they record it then start billing you for something. They have a recording of you saying yes. Don't answer and never answer that question
say "yes" again, anywhere. You can be recorded by anyone at anytime and scammed. Why they could even launch nuclear missiles and start World War III with a simple "yes". Or you could use your head for something other than a hat rack and realize that there is really no way you can be scammed with nothing more than a simple "yes", and that no one has ever been scammed that way in real life.
I get called from at least once a day, sometimes, more. My caller Id reads "Readers mag". I also get calls from "out of area" & "unknown caller", etc, & let my answering machine answer all these.