Use the network services menu for this...
Use this menu to access network services. Please
contact your service provider to check their availability and subscribe to them, if you wish.
This network service allows you to restrict your calls.
1. Select a call barring option:
•
All outgoing: prohibit outgoing calls.
•
International: prohibit international calls.
•
International except home: only allow calls
to numbers within the current country when
you are abroad, and to your home country.
•
All incoming: prohibit incoming calls.
•
Incoming while abroad: prohibit incoming
calls when you use your phone outside of your
home country.
•
Cancel all: cancel all call barring settings,
allowing to be sent and received normally.
•
Change barring password: change the call
barring password obtained from your service
provider.
2. Select the type of calls to be barred.
This network service allows you to restrict your calls.
1. Select a call barring option:
•
All outgoing: prohibit outgoing calls.
•
International: prohibit international calls.
•
International except home: only allow calls
to numbers within the current country when
you are abroad, and to your home country.
•
All incoming: prohibit incoming calls.
•
Incoming while abroad: prohibit incoming
calls when you use your phone outside of your
home country.
•
Cancel all: cancel all call barring settings,
allowing to be sent and received normally.
•
Change barring password: change the call
barring password obtained from your service
provider.
2. Select the type of calls to be barred.
if you have any queries about your mobile..you can have a look at this user manual which can be downloaded from
http://safemanuals.com/user-guide-instructions-owner-manual/SAMSUNG/SGH-D600-_E
hope this helps :)