1. Find "Silence Unknown Callers"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-7c11368f-a685-492b-a25d-b1b591ac0b94.png?width=210&height=454)
Press Phone.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-8311266d-c05c-4670-86fc-e180a9e1d32f.png?width=210&height=454)
Press Silence Unknown Callers.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-6b6e0152-0127-4b5c-9a75-996ed2071b22.png?width=210&height=454)
2. Ignore calls from unknown numbers
Press the indicator next to "Silence Unknown Callers" to turn on the function.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-7930953e-5f73-4fe2-a700-91e0c41c0d83.png?width=210&height=454)
3. Return to the home screen
Slide your finger upwards starting from the bottom of the screen to return to the home screen.
![](http://wmstatic.global.ssl.fastly.net/ml/7140723-f-7930953e-5f73-4fe2-a700-91e0c41c0d83.png?width=210&height=454)