This caller addresses you by name and asks if you own the home. Then proceeds to tell you he has a special on ADT home security systems in your area. Telling them you are not interested results in them getting ugly and calling you over and over from different 866 numbers, even when you are on the do not call list.

nasty attitude - called over 6 times in one day.

This number calls us 10+ times a day for the past 4 days. We let it go to voice mail. They never leave a message. It does sometimes leave a hang up signal or a busy signal, but never a message.