Called my cell. Didn't recognize the number, so I didn't answer. No name, just the number. Left no message.

Called my cell, number only no name.  I did not pick up and they left no message.

I got the call and they did not leave a message. Later I called the number back and an automated system just kept telling me that if I wanted to be added to the do not call list press #1. So I assume they must get that request a lot to automate it.

Called the number back an hour after they called me. Automatic voice message system asked if I did not want the # to call back to press 1

Called answered no response didn't say a word.