iOS 13’s Robocall Feature Might Stop Legitimate Calls
twilio.com
twilio.com
If the web didn't have SSL, there would be PSAs about how you should never trust it for anything, ever. However, the current phone network is in this state, and we're all okay with it and we act like this isn't a crisis.
Honestly I think Android and iOS should both blast warnings all over their OS about how dangerous it is to trust the phone, and how you should avoid using it for anything that requires privacy. Never trust a call from anyone, period, until we have some kind of cryptographically secure system that assures us of the identity of the party calling us.