We never answer our land line, just let answering machine pick it up. BIL has a message in which he says "hello," followed by a pause. Amazing how many will talk till beep shuts them off. Back last year, I opened an Amazon CC just to get discount ($100) on purchase. Established a one thousand dollar credit limit, as I seldom buy from Amazon. Kids have prime accounts, so if I need something, I get them to order it. Weekly, I get calls telling me that a purchase which far exceeds my credit limit has been posted to my account, and I need to call then back at XXX-XXX-XXXX. Also get one telling me I can get a 50% discount on my Direct TV bill, just by calling the number shown on my caller ID, which we don't have. Notice, caller didn't say call Direct at their listed business number. Tried that, but didn't get 50% discount, though I did get a 10% discount for a year. As for warranty, I play them along for a few moment till I say, "I'm sorry, I meant 1988, instead of 2018." Click!