The do not call registry law states that it only applys to companies who exchange money/services by phone. Making a transaction of some sort, to sum it up. What this company is doing is calling folks to see if they'd like to set up an appointment for someone to come out and give them an estimate. I really consider this appointment setting. Nothing illegal about setting up appointments. Luckily for the guys on the phone, they have volume control on their headsets, or at least they did where I use to work in Oklahoma. Be prepared to have that airhorn ready for the next day tho, and possibly the next. The way it works is if you don't speak to a warm body, it's considered a re-dial, at least until they are out of your area. It's a shame people get completely bent out of shape when it comes to taking unknown calls. You have a phone, it's bound to happen. I use to do real telemarketing in Oklahoma. I scammed people, funny thing is before I could get a word out some would say "not interested" I said "your not interested in a FREE car?!!! Boy they'd jump back into convo with a different demeanor in their voice and everything. Comical.