Must be a robo caller. It only rang once which is how my call blocker works.  If it is a robo call, no one can listen to the message & punch in the correct number.  If they punch in the correct number, it will let them ring through & I can answer it if I want to.  I don't know anyone with this phone number so I am assuming it's a robo caller & I'm blocking it. My caller ID shows CCI.

Called office and no message.

Called, no message.

Called at 9:30 in the morning and left no message.  Don't know you.  Blocked.

Called at 9:40 am I let it ring. Waiting for a voicemail but no msg was left. Don't want to call it back. If it would be for me or at least important they would leave a voicemail.