T o o l s
61
English
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.
9249411_5500 Sport_2_en_zh.fm Page 61 Friday, June 30, 2006 4:13 PM
