You are so right. I have told company that wants to sell me an extended car warranty to please take me off their list but that did not work. Have blocked at least 8 phone #'s from them. In the rare case that I pick up the phone and do not hear a voice first 20 seconds it's a pain in the butt company wanting to sell you something. Asked a few of them is it something important they have to discuss with me tell them listen I'm always busy do they will have to send me $50 for the privilege to speak to me and a $1 a minute. They always hang up. We still have a land line in the house because my wife rather talk on that. All of our friends either text or call our cell phone so 99% of calls on the land line are spam.If you don't have a "call blocker" app on your phone, I would suggest you get one, even it it's a free app (i.e HIYA). It will block at least some portion of the calls. By the same token, take the time to "BLOCK" the sender on your phone. It's an annoying process but you'll eventually get to a point where the calls will diminish considerably. I don't know how these marketing companies are able to do this but today they'll call you from 123-555-0000. The next day they'll call you from 123-555-0001, then 0002, etc. You have to keep blocking them.