I get them several times a month and have finally found the perfect solution for all telemarketers, a whistle. I just give the whistle a long blow and none of them have called back nearly as frequently as before. The do-not-call list is a joke. I think it gives more people our phone numbers and certainly doesn't block any calls. I had 5 of them in one day. Just hanging up didn't seem to help, they would just call back but the whistle has done the trick thus far.