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Closed user group (Menu 4-5-4)
This network service specifies the group of people whom you can call and who can call you.
Preset
resets the phone to use a user group the SIM card owner has agreed upon with the service provider. A
closed user group is indicated by the icon
. For further information contact your network operator
or service provider.
Note:
When calls are limited to Closed User Groups, calls may be possible to certain
emergency numbers in some networks (e.g. 112 or other official emergency number).
Security level (Menu 4-5-5)
You can protect your phone against unauthorised use with the security code (security code). To do this,
you need to set the menu function
Security level
to
Phone
or
Memory
. When set to
Phone
, the phone
will ask for the security code when the SIM card inserted is not one of the five SIM cards used most
recently with the phone. When set to
Memory
, the security code is required to enter the phone’s
internal phone book.The security code is also required for using some functions, for example, to clear a
phone book or to restore the factory settings.The security code is usually supplied with the phone (on
an identification sticker). If not, contact your local dealer. The factory setting for the security code is
12345. Change the code within the menu 4-5-6
Change of access codes
. Keep the new code secret
and in a safe place which is separate from the phone.
Note:
If you enter an incorrect security code five times in succession, the phone is blocked and will not
accept the correct security code for the next five minutes.
Tip:
You can also restrict calls made from or to your phone if supported by your network.
See also
Call barring service
(4-5-2),
Fixed dialling
(4-5-3) and
Closed user group
(4-5-4)
in the Settings section