My cell phone rang once then hung up. NO message was left. I didn't know the number, so I didn't answer it. If I don't know the number I don't answer it. If they really wanted to get ahold of me they can always leave a message. There are alot of scams going on out there and alot of hacking out there too. I heard from couple of people that all these people do is have a computer sent up to call random numbers and if someone answers they called that number back. telemarketers do this alot. I block the number and delete it from my log.