1 Find "Call forwarding"
Slide your finger down the display starting from the top edge of your phone.
Press Call settings.
Press Call forwarding.
2 Select divert type
The current settings are displayed.
Press one of the following options:
Forward when busy
Forward when unanswered
Forward when unreachable
3 Divert calls to voicemail
Key in (prefix) 5 (your phone number) and press Enable.
4 Return to the home screen
Press the home icon to return to the home screen.