Robot pretending to be human asking to speak to business owner about a "growth opportunity"
When I said "Do Not Call" list, it said, "Okay".
Hm.  Maybe it'll work.

Always ask telemarketers that sound like robots a simple math problem.
If you want to do the word a favor, politely hang up on humans, and if you have the time, say "uh huh"  "Go on"  "That's great!" "Can you repeat that?"   I'm curious if robots know when they're being strung along and it'll keep that phone line tied up.

Lord help them when I invent an mp3 on a loop with comments like that.
I'll get two robots talking to each other endlessly.
Every phone line costs them a monthly fee, so they'd have to go under eventually.