Samsung Galaxy A6
It's not possible to receive voice calls
Solution 2 of 4: Divert of all calls is turned on
If you no longer wish to divert your calls, you need to cancel the diverts.
Press Phone.
Press the menu icon.
Press Settings.
Press More settings.
Press Call forwarding.
Press Voice call.
Press the required divert type.
Press DISABLE.
Press the Home key to return to the home screen.