Got it today on the cell phone. The LG cell phone has a setting so it won't answer unless it is in my contact list but records the number. The home phone, Ooma Premier, "no more robos", and has a block list I can add to but I rarely bother with anymore since it has caller ID. One simple rule, if the identifying caller only has a city, or just a number forget it. Thanks all for the information!
No msg left. I will unabashedly recommend using the "Should I Answer?" app. I installed it a few months ago and just about every spam call I get now is automatically blocked. Not an ad, I swear! Just a recommendation. Crowd-sourced so if a spam caller gets through, you can negative rate them and it goes back into the system so it's blocked next time for anyone else.