Called my home and caller ID only said "Leonia NJ" which let me know it was a bogus call. Otherwise an owner's name or "Unknown" would have shown. With my telephone system it means the call was made through a computer (could be Telespoof, Skype, etc). Because the call came from or through a computer I am told it is considered by the US federal government to be Data and not Voice so they are not regulated by the Do Not Call list.
The only options to stop such calls is to either block the callers or have my telephone number listed as Disconnected for a few weeks.
They call and don't leave a voicemail either. The women I spoke with are rude and don't let you speak. They claim to be debt collectors and claim you owe money. I have no debt at all! I asked for them to verify my information but they refused stating it was due to security purposes. But supposedly it's my information! They kept asking for my social which was weird. I finally asked for them to stop calling and hung up.