Block outgoing international calls on landline

Call your phone company and block international calling

no way to block out going calls , only incoming calls
you can get a landline phone that has a key lock that prevents calls being made
check with your provider or a business phone shop
other than that get her a cell , prepaid phone and then if she wants to make calls she has to find the cash to get a new prepaid card

Two ways this can be done.
One is through your phone, Call Settings/Call Barring/ International Calling-enabled
Two is through your phone service provider. They can do it on the system.

Regards,

What has happened with the switch? Can you restart it?

In setting / security setings / there should be an option as "Call Barring Service" in which u can block incoming or outgoing or international calls

There is no security code(builded in the phone) to block outgoing calls. But exist a international codes....*33*xxxx# (and call) to activate the "block" and #33*xxxx#(and call) to deactivate restriction. the "xxxx" is a network code....is 0000 if you not changed meantime. By the way, *35*xxxx# block incoming calls and #35*xxxx# unblock incoming calls. Search on google for those codes. Good luck!

the internet connection's outgoing is too slow. ALl internet connections have an outgoing and an incoming speed. Make sure you are not uploading anything to the internet or get a faster internet service provider

nu suna nu are ton

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 :)