Coincidentally, I started receiving calls from this number shortly after I submitted something to Service Magic. Not sure if it is related but I can't imagine why else they would be calling.
Answer, speak immediately so the computer will transfer to a live person. Then have fun with it, tell them you are so interested, but keep doing things, like answering doorbell, getting pen and paper, getting credit card.
The more you can waste that live person's time (and wages) will get you off call lists faster than any "do not call" list. I do this, and they never call again, and I have rarely been getting new calls.
Hit them where it hurts, the wallet.
If a nice percentage of people did this, all telemarketing would probably stop...
And please feel free to pass all of this along whenever you post comments on other numbers...