1 Find "Call forwarding"
Press the menu icon.
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.
Press the Home key to return to standby mode.