calls may be possible to the official emergency number
programmed into your device.
Select 
Menu
 > Settings
 > Security
 and from the
following options:
•
the device to ask for your PIN or UPIN code every time
the device is switched on
. Some SIM cards do not
allow the code request to be turned off.
• PIN2 code request
 — to select whether the PIN2
code is required when using a specific device feature
which is protected by the PIN2 code. Some SIM cards
do not allow the code re
quest to be turned off.
• Call barring service
 — to restrict incoming calls to
and outgoing calls from your device (network
service). A barring password is required.
•
Fixed dialling
 — to restrict your outgoing calls to
selected phone numbers if this function is supported
by your SIM card. When th
e fixed dialing is on, GPRS
connections are not possib
le except while sending
text messages over a GPRS connection. In this case,
the recipient’s phone number and the message
center number must be included in the fixed dialing
list.
• Code in use
 — to select whether the PIN code or
UPIN code should be active
• Authority certificates
 or 
User certificates
 — to
view the list of the auth
ority or user certificates
downloaded into your device. See
"Certificates," p. 64.
•
Security module settings
 — to view 
Security
module details
, activate 
Module PIN request
, or
change the module PIN and signing PIN. See "Access
codes," p. 9.
45
Settings
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Closed user group
 — to specify a group of people
whom you can call and who can call you (network
service)
Security level
 — Select Phone
 to set the device to
ask for the security code
 whenever a new SIM card
is inserted into the device. If you select 
Memory
, the
device asks for the securi
ty code when the SIM card
memory is selected, and you want to change the
memory in use.
Access codes
 — to change the security code, PIN
code, UPIN code, PIN2 code, or barring password
•
•
•
PIN code request
 or UPIN code request — to set