How to I enable notifications with DND/Silence turned on
Due to a plague of robocalls, I have Do Not Disturb + Silence turned on so that my iphone does not attract my attention at all for calls from non-contacts, even when I'm using the phone.
However I do want Google Hangouts to notify me via banners about incoming chats when I'm in other apps. I have verified that I have all notification settings turned on for GH. Unfortunately, DND + Silence additionally blocks notifications. I get Google Hangouts banner notifications while I'm in the app but viewing a different Hangout, but not when I'm in a different app.
I've tried various "intelligently block robocalls" apps and have not been satisfied. Plenty of robocalls still get through.
So -- how do I prevent all attention-getting behavior from the phone for calls from non-contacts, while still allowing ios notifications to occur as configured? (eg, a Hangouts banner comes up while I'm in Safari.)
iPhone 8 Plus, iOS 11.2.6