1. Find "Call forwarding"
Press the phone icon.
Press the menu icon.
Press Settings.
Press Call forwarding.
2. Divert calls to voicemail
Press the required divert type.
Key in (prefix) 5 (your phone number) and press ENABLE.
(prefix) 5 (your phone number)
3. Return to the home screen
Slide your finger upwards starting from the bottom of the screen to return to the home screen.