From the home screen, tap Menu. Note: Note: The call blocking feature may not affect phone calls made or received via third-party apps installed on your device. Please contact third party app developers for assistance with such applications.
Swipe to, then tap Settings.
Tap Call Barring.
Tap All Incoming. Note: This feature will block all incoming calls.
Tap All Calls.
To turn on, tap the Arrow icon to set to Active.
To turn off, tap the Arrow icon to set to Deactive.