Cold-caller dealt with in under 10 seconds

"Am I speaking to Mr or Mrs Villiams?" 

"No, there's no-one of the name of "Villiams" at this address" 

Click. 

If you're supposed to be a pro at talking to people on the phone, at least learn enough English to pronounce their names! The letter at the start of mine is W, not V.

Next up, the ones who take far too long to say anything in response to my greeting. If my "Good morning" is followed by enough silence for me to say "Hello? Is there anybody there?" plus about 2 sec more silence, they get the phone put down on them. You're calling me, you're the one with something to say, so don't waste my time.