I really hope this includes a setting on Do Not Disturb to always silence calls/texts from numbers not in my addressbook along with the ability to schedule it for further silencing during sleeping hours.
I use my phone almost entirely for data and messaging though. Calls are rare.
* Always, no notification of calls or texts from people not in my contacts.
* Scheduled at night, when I'm asleep, no notification of calls or texts from anyone, unless they call twice in a row (emergency calls).
As far as I know, I can't set up Do Not Disturb to do this.
It’s twice. Under Settings → Do Not Disturb → Repeated Calls:
> A second call from the same person within three minutes will not be silenced.