
Samsung Galaxy Core Prime
Find "Voice call"
Press the phone icon.
Press Keypad.
Press the menu icon.
Press Settings.
Press Call.
Press Additional settings.
After a moment the current settings are displayed.
After a moment the current settings are displayed.
Press Call forwarding.
Press Voice call.
Select divert type
The current settings are displayed.

Press one of the following options:
Always forward
Always forward
Forward when busy
Forward when unanswered
Forward when unreachable
Divert calls to alternative number
Key in the required number and press Enable.
Return to the home screen
Press the Home key to return to the home screen.