Tools
95
allow the PIN code request to be turned Off. If you select Code in use >
UPIN, UPIN code request is shown instead.
PIN code (or UPIN code) /PIN2 code /Lock code — to change the codes
Autolock period — to set a time-out after which the phone is
automatically locked. To use the phone again, you need to enter the
correct lock code. To turn off the autolock period, select None.
Lock if SIM changed — to set the phone to prompt for the lock code
when an unknown, new SIM card is inserted into your phone. The phone
keeps a list of SIM cards that are recognized as the owner cards.
Closed user group (network service) — to specify a group of people
whom you can call and who can call you. For more information, contact
your network operator or service provider. To activate the default group
agreed on with the network operator, select Default. If you want to use
another group (you need to know the group index number), select On.
When security features that restrict calls are in use (such as call barring, closed
user group, and fixed dialing) calls may be possible to the official emergency
number programmed into your device.
Confirm SIM services (network service) — to set the phone to display
confirmation messages when you use a SIM card service
Certificate management
Digital certificates do not guarantee safety: they are used to verify the
origins of software.
To view a list of authority certificates that have been stored in your
phone, select Menu > Tools > Settings > Security > Certif.
management. To see a list of personal certificates if available, scroll
right.
Digital certificates should be used if you want to connect to an online
bank or another site or remote server for actions that involve
transferring confidential information. They should also be used if you
want to reduce the risk of viruses or other malicious software and be
sure of the authenticity of software when downloading and installing
software.
