Certificate Management - Nokia 3250 User Manual

T o o l s
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
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
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.
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.
94
(network service) — to set the phone to display
> Tools > Settings > Security > Certif.