BNKY- I agree with you 100%. I have been getting these calls for about a year on and off. Your right, there is no debtors prison and 3rd party harrassing is illegal. I called my phone company and had the number calling me blocked about a couple months ago. Today on my caller id was 48989 and it was them again. Same man, but using different name. This time phone company couldn't block. I know these people are scammers like you do. However, there are older people who are vulnerable and scare easily and these people probably prey on them. They have to be stopped!
I just received a call from them. Received a call from a similar company just a couple of days ago too (must be sharing the same call list). Anyway, I always tell them that they should call my attorney. I give them the name and number of the Attorney General for the State of PA (where I live). I also inform them that they should send the "verification of debt" to this person. They always end up hanging up on me before I get the full number out.
People from this phone number hardly speak English and are constantly calling me at home sometimes at 5:00 AM in the morning telling me that I need to give them the name of my attorney as they are filing charges against me for fraud. Now they are calling at my work as well. When I ask what they want they hang up on me.