Generally I can have them screaming by the end of the call.
Act interested. Ask appropriate questions. Act like you are going to take the bait. Tell them our credit card is in the other room. If they ask for an email use a really long email adress, I use walter.throckmorton@infosystemsnorthwest.com and it takes four or five tries to get it right.
A good call goes 5-10 minutes. I make up credit card numbers and ensure that they can’t hear certain digits.
If everyone messed with them and wasted their time they would go away.
Consider it a game. You win if they start yelling.
Thanks! Great to waste their time.
But I was referring to the calls that have no one on the other end. Massively infuriating (yes, want to kill).