I tend to agree with you. When this call came in it was already blocked on our Panasonic phone - which means that the criminal caller had called our home before from this telephone number.
It is possible that I blocked the number and did not post on 800Notes...but unlikely. I am diligent about posting these criminal calls here on 800Notes.
Called 5 times over the past 2 weeks. I answered and said hello to night, I heard someone in the background, probably talking to someone else and not expecting an answer. I called back after 10 minutes and get "we are unable to complete your call ..."