Open Settings
Tap Phone
Tap Silence Unknown Callers
Turn on Silence Unknown Callers
Review the warning about missed calls from unknown numbers
Make sure calls from your contacts, recent outgoing calls, and Siri suggestions can still ring through
Open Settings
Tap Phone
Tap Silence Unknown Callers
Turn on Silence Unknown Callers
Review the warning about missed calls from unknown numbers
Make sure calls from your contacts, recent outgoing calls, and Siri suggestions can still ring through