Proven way to stop these calls......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.

Windows and Doors telemarketer.  Don't waste your time.

just got a call from this number. someone asks for me then someone else wants totalk   i just hung up.

Caller I.D came up as "Factory Pro" I don't bother answering it.

I just got a call a couple of times now and when I answer and there was no answer and I try to call them back still no answers.

Sounds like some female is engaged in sexual activity, was this supposed to do something for me? They wasted their call on me............LOL.  Degrading behaviour if you ask me!