Certificate Management - Nokia 5800 XpressMusic User Manual

● Closed user group — You can specify a group of people to whom you can call
and who can call you (network service).
● Confirm SIM services — You can set the device to display confirmation
messages when you are using a SIM card service (network service).
In the offline or flight profiles, you may need to unlock the device and change to
the calling profile before making a call.
When calls are limited to closed user groups, calls may be possible to the official
emergency number programmed into your device.

Certificate management

Select Menu > Settings and Phone > Phone mgmt. > Security > Certificate
management.
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.
Select from the following:
● Authority certificates — View and edit authority certificates.
● Trusted site certificates — View and edit trusted site certificates.
● Personal certificates — View and edit personal certificates.
● Phone certificates — View and edit device certificates.
Digital certificates do not guarantee safety; they are used to verify the origin of
software.
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
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