I got hung up on after our company greeting...

Same thing happened to me and they wont stop calling!

My parents had a weird message on their answering machine. All it was was a bang that sounded almost like a gun shot, and that was all. They didn't have caller ID, but *69 gave us this phone number. Don't know for sure if the message was left from this number or not, but when we tried calling the number back, all we got was a busy signal.