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Security
Fixed dialing
Select
>
Contacts
>
Options
>
SIM contacts
>
Fixed dial contacts
.
With the fixed dialing service, you can restrict calls from
your device to certain phone numbers. Not all SIM cards
support the fixed dialing service. Contact your service
provider for more information.
When fixed dialing is activated, calls may be possible to
the official emergency number programmed into your
device.
1. To restrict calls from your device, select
Options
>
New SIM contact
and enter the contact name and
phone number to the list of numbers to which calls
are allowed, or select
Add from Contacts
to copy the
contact from Contacts. To restrict calls by a country
prefix, enter the country prefix in the list of
numbers. All phone numbers to which calls are
allowed must start with this country prefix.
2. Select
Options
>
Activate fixed dialing
. You need
your PIN2 code to activate and deactivate fixed
dialing or edit your fixed dialing contacts. Contact
your service provider if you do not have the code.
To cancel the service, select
Options
>
Deactivate
fixed dialing
.
Tip: To send text messages to the SIM contacts
while the fixed dialing service is active, you
need to add the text message center number
to the fixed dialing list.
Certificate manager
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.
Select
>
Tools
>
Settings
>
General
>
Security
>
Certificate management
.
Digital certificates are used to verify the origins of
software but do not guarantee safety. There are three
different types of certificates: authority certificates,
personal certificates, and server certificates. During a
secure connection, a server may send a server
93
Security
file:///C:/USERS/MODEServer/lkatajis/11051417/ra-6_maxi/en/issue_1/ra-6_maxi_en_1.xml
Page 93
Jan 8, 2007 1:39:30 PM