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S e t t i n g s
provider, select
Default
. If you want to use another group
(you need to know the group index number), select
On
.
When calls are limited to closed user groups, calls may be
possible to the official emergency number programmed
into your device.
Confirm SIM services
(network service) — to set the
device to display confirmation messages when you use a
SIM card service
Certificate management
A list of authority certificates that have been stored in your
device is displayed in
Certificate 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.
When security features that restrict calls are in use (such
as call barring, closed user group, and fixed dialling), calls
may be possible to the official emergency number
programmed into your device.
Important:
Even if the use of certificates makes
the risks involved in remote connections and
software installation considerably smaller, they
must be used correctly in order to benefit from
increased security. The existence of a certificate
does not offer any protection by itself; the
certificate manager must contain correct,
authentic, or trusted certificates for increased
security to be available. Certificates have a
restricted lifetime. If "Expired certificate" or
"Certificate not valid yet" is shown even if the
certificate should be valid, check that the current
date and time in your device are correct.
Before changing any certificate settings, you must
make sure that you really trust the owner of the
certificate and that the certificate really belongs
to the listed owner.
View certificate details and check authenticity
You can only be sure of the correct identity of a server
when the signature and the period of validity of a server
certificate have been checked.
The device notifies you if the identity of the server is not
authentic or if you do not have the correct security
certificate in your device.
To check certificate details, scroll to a certificate, and
select
Options
>
Certificate details
. While opening the
Содержание 6110 - Navigator Smartphone 40 MB
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