I have pressed 9 as suggested to 'stop calls' and yet the calls keep coming twice a week or so. This is the second time I have reported this number. They are selling a "personal medical alert" system. Additionally, pressing 1 to purchase a PMA system terminates the call.
The DoNotCall list is honored only by legitimate marketers. These outlaw operators are organized criminal enterprises and do not play by the rules. It is difficult to locate and prosecute them. Our best hope is to pressure the telephone companies to block known scam numbers from their systems, which they will not do.