I figured i'd answer, why not? Dead air, no background noise, even waited a few seconds and kept saying hello. Probably a robo dialer ran out of juice.
Robo Call scammers impersonating "Google Maps". I answered the call and they asked if it was my business. I said "I'm busy right now, can I call you back?" and they hung up on me. Any real business would not do that. These are scammers