Get several calls per week. I screen all my calls with caller id, this one never leaves a message, but the id reports Georgetown CO. I figure if you dont leave a message, its not important and I lose interest.
These people call me daily. Two to four times a day leaves no message. I just ignore the call. If I don't know it I won't answer, if they need something bad enough they will leave a message. I just put it to ignore all calls for this number on my phone, my phone has that option the can call but it won't ring.