The Do Not Call List is a joke. Really just a place for scammers to get legitimate phone numbers to call offering scams.
The absolute best thing I ever did was buy this Sonim XP Bolt stick phone on eBay. Cost around $50 and accepts the AT&T SIM that Consumer Cellular will sell you. Too bad it is only 3G and might quick working next year. I don't text or surf the Web or any other thing on my phone. It's a phone meant for calls only.
At any rate, I was constantly annoyed by phone scams. My number has been on the DNCL for years and was even renewed. Nothing stopped "Weeendoze Company" from calling about "a virus they discovered on my computer" or the "IRS" calling or any of the other hundred plus phone scams out there.
At any rate, I hope this picture is clear enough.
Allow Contacts
When I set the phone to "Allow Contacts" all other incoming calls are routed directly to voice mail without the phone even ringing. It does light up but no vibrate or ring.
So far the only annoying part is the BT45-TOY I had installed in my 2006 Toyota Avalon for handsfree Bluetooth calls. It appears the "light up" portion also initiates Bluetooth connection to that device. Wouldn't be a big deal ordinarily, but it switches the radio to satellite mode so it can communicate with the phone and doesn't autoswtich back.
After almost a month of enabling this setting, I have peace and quiet. I see a handful of missed calls and none of them bother to leave a message. It's Nurvana.