Just got a call from this number, they were trying to sell some kind of home alert system to seniors. I pressed 1 to get an operator and told the guy that I was on the do not call list. He claimed that I had agreed to be called (there are no seniors at this address), I told him that wasn't the case, and then he accused me of 'not believing the truth' and hung up on me.
Got a call at 6:40 PDT. I have an NP number which does not I.D. To the caller. I just listen and eventually they hang up. There was initially a VT prefex to a series of numbers displayed on the caller I.D. I don't know what that might signify but I am going to follow up. I am a retired electronics tech and it might be time for me to re-enter the technology and build some tracing gear. I can block them well enough but I would really like to nail their credentials it a log.