Call Barring - Nokia 3230 User Manual

P e r s o n a l i s i n g y o u r p h o n e
Important: Note that even
if the use of certificates
considerably reduces the
risks involved in remote
connections and software
installation, 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 actually trust the owner of the
certificate and that the certificate
really belongs to the listed owner.
Changing the trust settings of an
authority certificate
• Scroll to an authority certificate
and select Options
settings. Depending on the
certificate, a list of the
applications that can use the
88
→
Trust
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selected certificate is shown. For
example:
App. installation/Yes
certificate is able to certify the
origin of new software.
Internet/Yes - The certificate is
able to certify e-mail and
imaging servers.

Call barring

Select Call barring.
Call barring (network service) allows
you to restrict the making and
receiving of calls with your phone.
For this function, you need the
barring password obtainable from
your service provider.
1. Scroll to one of the barring
options.
2. Select Options
request the network to set call
restriction on,
selected call restriction off, or
Check status to check if the calls
are barred or not.
• Select Options
passw. to change the barring
password.
• Select Options
barrings to cancel all active call
barrings.
- The
→
Activate to
Cancel to set the
→
Edit barrings
→
Cancel all