Receiving calls from unknown numbers on the phone can be annoying and scary as it could be an extortion or scam. Apple has a hidden trick for iPhone users, when activated it will block these types of calls.

The function Silence unknown calls It’s easy to turn on, but the downside is that it also blocks most numbers that haven’t been added to the phone yet and may want to contact you. Most Apple phones have this tool except iPhone 5S, iPhone 6 and 6 Plus or earlier models.

There are also some applications of it call blocker for iphonelike the mr. Number app, requires iOS 13 or later.

But if your iPhone is up to date and you are ready to be free from spam calls, here’s what you need to do.

How to block spam calls on iPhone

1. Navigate to the “Settings” app on your iPhone home screen.

2. Once you are in the settings, scroll down to the “Phone” app settings.

3. At the bottom of the menu you should see the option ‘Mute Unknown Callers’.

4. Now all you have to do is flip the switch to block ‘no caller ID’ calls.

Warnings

First of all this function will mute but not completely block these mysterious calls. These numbers can still leave voicemail messages for you, something you can be thankful for if a loved one is in trouble and contacts someone else’s phone.

If you really need to block these calls, it’s best to contact your phone service provider directly or download a third-party app like Mr. Number, which blocks the calls for you.