For a few weeks now, we've been having numerous phone calls come in from a couple of different numbers that only come up on our caller ID as "800 Service".
They never leave messages.
Of course, that means they're telemarketers of some sort.
Today I got fed up and actually answered the phone.
Me: [company name], this is Chris.
TM: ...
Me: Hello.
TM: ...
Me: HELLO!
TM: ...
Me: HELLO?
TM: Hello.
Me: Yes?
TM: I'm calling from the US Do Not Call Registry...
Me: You're calling from the US Do Not Call Registry?
TM: Yes.