Who called from 3197744535

My home phone rings.
Caller ID: 1-319-774-4535
Me: Hello?
Lady: Hi, is Joseph available?
Me: There is nobody here by that name, I think you have the wrong number.
Lady: Well I'm Lisa from breast cancer research network, I'll just try back another time
Me: Wait, what? He doesn't live here so how will calling back help anythi--
Lady: You have a pleasant evening, buh-bye!
*dial tone*

WTF?

Sounded like a man with a throat machine or trying to be scary. Didn't understand anything he said, just hung up.

We had a missed call from this Name/Number.  We weren't home and had a partial message on our answering machine.  She said something like, "Oh, Hi this is Kristen with the..." and that is all.  Glad I wasn't home and didn't have to deal with that!