If you can get anyone on the phone that calls you like this. Just use a coaches whistle and blow it as hard as you can into the talk part of the phone and hang up. Remember, they called you. If we can get many people doing this I think they might change the way they call. They can even spoof their phone number that shows up on your caller id to show the wrong number. I even called some back and used the whistle on them but I would first make sure it was who called. I would ask. What are you calling me about? Then let them have it. What are they going to do? Call the law and report you?