1. Find "Voice"
Press the main menu icon.
Press Phone.
Press the menu icon.
Press Settings.
Press Calls.
Press GSM call settings.
Press Call forwarding.
Press Voice.
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.