Apple calls the feature "silence unknown callers" and it does just as the name implies. The feature is off by default, and for good reason. Not every phone call we get is spam. Whether it's a call from work, your kids' school or your plumber, we do not know the number that's calling us.
If you have not installed iOS 13 yet, make sure you. Then look through our complete .
To silence unknown callers:
- Open Settings app on your iPhone.
- Find and select Phone from the list of options.
- Silence Unknown Callers and slide the switch to the On position.
With the feature enabled, the only time to make an incoming call is to make your iPhone ring, if the phone number is found in your Contacts, recent outgoing calls, or is a Siri Suggestions (sourced from the Mail or Messages apps). Any other calls wants to go directly to voicemail, where the caller can then leave a message.
When you use this feature, you'll get fewer robocalls, but you might as well check.
If the idea of blocking all unknown callers is a bit much for you, you have other options. We've detailedonce and for all using apps from your wireless carrier, as well as third-party apps, along with .
Originally published earlier this year. Updated with new information.
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