1 Find "Voice call"
Press Call.
Press the menu icon.
Press Settings.
Press Calls.
Press GSM call settings.
Press Call forwarding.
Press Voice call.
2 Divert calls to voicemail
Press the required divert type.
Key in (prefix) 5 (your phone number) and press TURN ON.
(prefix) 5 (your phone number)
3 Return to the home screen
Press the Home key to return to the home screen.