[MarkSummer]

I like the idea of using a 'enter code' (where code is pseudo randomly generated) to request your number be added to the white list. This could be done for all users not in your contacts. Then, the user could leave, say a voicemail, which is converted to text that goes into a list that you could later scan for valid requests.

I currently use the "Should I Answer" app, mentioned below, which is about as good as it gets in terms of pissed off people working together to fight the good fight I think.

However, all of this crap is still jist a bandaid for a lack of our governmental ability (at least in the U.S.) to hold phone utilities accountable for the illegal use of phone numbers.(1) Fine the phone companies hard and the problem goes away.

1. https://www.consumerreports.org/consumerist/phone-companies-...