I don't get them very often. They usually hang up on ME since I get so "irate" that they want to end the call.
My last one was from Sprint, who happens to supply my local dialtone. The telemarketer made some kind of statement regarding improving my service, and then immediately started trying to push sprints version of long distance service. Now, I had just dumped AT&T and went to IDT, (got the nickel plan) and didn't even want to hear the speel, and told this guy as much. THIS idiot starts talking over me, raising his voice. Now , you don't call ME, in my private home, and then start getting pushy with what you're trying to sell. He immediately received a long, loud line of obscenities for his attitude, followed by a statement to the fact that if they wanted to improve thier service, they could start by not calling me ever again - OVER this *********s evern increasing volume - followed by the phone being slammed down in his ear.
I hate telemarketers.
My response for those who ask how I know whether or not I want whatever they had, well, I would have already called THEM if I needed their service.