Received a hang up call. When I called back, I got a garbled message, just one word, "representative" before the phone hung up on me.

called and did not leave a message.  Has called in the past.  Calls house number and I never gave this number out.  Will check with my cable company to see if they release this number to third parties

This is one of those robocallers that has an automated attendant that sounds like a real person, until you realize the responses are not quite correct. Ignore/block.

BLOCK this caller.......robodial pretending to be a real person but it's automated.......just ignore.

Called me, but left no message.  Wish I answered so I could listen to a sweet robo caller!  Those are my favorite.