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!
Caller Id said "get cash". I use VOIPO (https://www.voipo.com/voip2.php) service for my home number. Great service. I is about $7/mo. I have the ability to tag numbers any way I want. I don't even block the numbers anymore, I just tag as "disconnect" and never get a call back. I have been using VOIPO now for 3 years and it has been a life saver.