Caller stated he was from Graham's Heating & Air and wanted to offer a half price inspection for $39.99.  Told him I was on the Do Not Call List. He said he would take me off his list.  Told him that he should be aware that my name was already on the National List, as that was the purpose so people wouldn't call me.  He stated that the company  bought the list from another company and he would have no way of knowing and then hung up on me.  I think the people who buy the lists and sell the lists should be fined.  Filed report with the FTC. Quick and easy.