1. Find "Silence Unknown Callers"
Press Settings.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-c9ea6c87-34ce-47bf-9749-225029b476e2.png?width=210&height=454)
Press Phone.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-5ec7a7ab-cbb8-4a8e-b259-fbe82b79955c.png?width=210&height=454)
Press Silence Unknown Callers.
![](http://wmstatic.global.ssl.fastly.net/ml/7151223-f-eabd7a4f-9dc3-4f88-a24b-56990793afdf.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/7151223-f-17ea2ba0-c6c7-4465-b850-9127bd0e7f37.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/7151223-f-17ea2ba0-c6c7-4465-b850-9127bd0e7f37.png?width=210&height=454)