Certificate Manager; Fixed Dialling - Nokia E51 User Manual

To remove the memory card password, select
Remove password. When you remove the password, the
data on the memory card is not protected against
unauthorised use.
To open a locked memory card, select
memory card. Enter the password.
If you cannot recall the password to unlock a locked
memory card, you may reformat the card, in which case
the card is unlocked and password removed. Formatting
a memory card destroys all data stored on the card.

Fixed dialling

Select Menu Contacts Options
> >
Fixed dial contacts.
With the fixed dialling service, you can restrict calls from
your device to certain phone numbers. Not all SIM cards
support the fixed dialling 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
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
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.
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2. Select Options Activate fixed
>
your PIN2 code to activate and deactivate fixed dialling
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Options or edit your fixed dialling contacts. Contact your service
>
provider if you do not have the code. To cancel the
service, select Options
Tip: To send text messages to the SIM contacts while
the fixed dialling service is active, you need to add
Options Unlock
>
the text message centre number to the fixed dialling
list.

Certificate manager

Select Menu Tools
>
Security Certificate
>
Digital certificates are used to verify the origins of
SIM contacts
> > 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 certificate
to your device. Upon receipt, it is checked through an
authority certificate stored on your device. You receive
notification if the identity of the server is not authentic or
if you do not have the correct certificate in your device.
Download a certificate from a web site, or receive a
certificate as an e-mail attachment, or as a message sent
Options
>
through a Bluetooth or infrared connection. Certificates
should be used when you connect to an online bank or a
remote server to transfer confidential information. They
to copy the
should also be used if you want to reduce the risk of viruses
or other malicious software, and to check the authenticity
of software when you download and install software to
your device.
Tip: When you add a new certificate, check its
dialling. You need
authenticity.
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Deactivate fixed dialling.
>
Settings General
> > >
management.