This. It's a complete nightmare, I get 5-10 junk calls a day, all from "local" numbers. I gave up blocking them as they are seemingly random. Some of the cal

This. It's a complete nightmare, I get 5-10 junk calls a day, all from "local" numbers. I gave up blocking them as they are seemingly random. Some of the calls are in Chinese! At this point I just don't answer a call that's not in my contacts, but I should be able to enable this as the default. If it's someone that really wants to talk to me, then they'll leave voicemail. I shouldn't have to use Do-Not-Disturb; that's for something else (don't ring my phone at all when I am sleeping), also I don't want to lose my other notifications. The telcos charge for a "blocking" service so they have no incentive to do anything about it ... but I don't understand why Apple hasn't addressed this (maybe today's 15% decline in iPhone sales is people saying f-it and switching to Android where you can get apps to block calls).