An active spam call filter can prevent suspended spam calls from disturbing you.

On Pixel Devices

Step 1:Launch thePhone appon Android.

Tap thethree vertical dots menuat the top-right corner and selectSettings.

block all calls except contacts on Android and iPhone 10

Step 2:Tap Caller ID and spam, and enableFilter spam callstoggle.

Step 3:Go back and openBlocked numbers, and enable theUnknowntoggle.

On Samsung Galaxy Devices

Heres how you’re able to do it on Samsung devices.

block all calls except contacts on Android and iPhone 11

Step 1:Launch the Phone app on your Samsung Galaxy phone.

Tap thethree vertical dotsmenu and go to configs.

Step 2:Enable theCaller ID and spam protectiontoggle.

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Step 3:Open theBlocked Numbersmenu and toggle on theBlock unknown/private numberstoggle.

On iPhone

There is no way toblockspam and unknown callers on iPhones directly.

However, iOS offers an option to silence unknown callers.

block all calls except contacts on Android and iPhone 13

Open theSettingsapp, go toPhone > Silence Unknown Callers> unlock the toggle for the same.

Step 1:OpenSettings > Notifications > Do Not Disturb.

Step 2:TapPeople.

block all calls except contacts on Android and iPhone 12

SelectCalls, and tap the radio button besideContacts.

Return to the Do Not Disturb menu and activate the option.

Your Android will only notify you about alerts about important people and apps.

block all calls except contacts on Android and iPhone 14

Step 1:LaunchSettings, selectNotifications, and tapDo not disturb.

Step 2:SelectCalls,messages, andconversationsunderExceptions.

TapCalls, and selectContacts only.

block all calls except contacts on Android and iPhone 25

If youreceive calls during an active Do Not Disturb mode, check our dedicated guide to fix the problem.

OpenSettings > Focus > Do Not Disturb > People.

TapAllow Calls Fromand selectContacts.

block all calls except contacts on Android and iPhone 26

Lets check it in action.

Step 2:SelectBlockand enable theBlock numbers not in the phonebooktoggle.

Truecaller on iPhone

Step 1:Download and installTruecaller on iPhone.

block all calls except contacts on Android and iPhone 27

Step 2:launch the Truecaller app and give it the necessary permissions.

Step 3:kill the Truecaller app and open theSettingsapp.

Scroll toPhone, and selectCall Blocking & Identification.

block all calls except contacts on Android and iPhone 1

Also Read:How to hide last seen on Truecaller

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