Nokia N79 - Manual (Page 160)

Several diverting options can be active at the same
time. When all calls are diverted, is shown in the
standby mode.
Call barring and call diverting cannot be active at the
same time.
Call barring
Press , and select Tools > Settings > Phone >
Call barring .
Call barring (network service) allows you to restrict the
calls that you make or receive with the device. For
example, you can restrict all outgoing international
calls or incoming calls when you are abroad. To change
the settings, you need the barring password from your
service provider.
Call barring and call diverting cannot be active at the
same time.
When calls are barred, calls may be possible to certain
official emergency numbers.
Voice call barring
Select the desired barring option, and set it on
( Activate ) or off ( Deactivate ), or check whether the
option is active ( Check status ). Call barring affects all
calls, including data calls.
Internet call barring
To select whether anonymous calls are allowed from
the internet, set Anonymous call barring on or off.
Network settings
Your device can automatically switch between the GSM
and UMTS networks. The GSM network is indicated with
in the standby mode. The UMTS network is indicated
with .
Press , and select Tools > Settings > Phone >
Network and from the following:
● Network mode — Select which network to use. If
you select Dual mode , the device uses the GSM or
UMTS network automatically, according to the
network parameters and the roaming agreements
between the wireless service providers. For details
and roaming costs, contact your network service
provider. This option is shown only if supported by
the wireless service provider.
A roaming agreement is an agreement between two
or more service providers to enable the users of one
service provider to use the services of other service
providers.
● Operator selection — Select Automatic to set the
device to search for and select one of the available
networks, or Manual to manually select the
network from a list. If the connection to the
manually selected network is lost, the device sounds
an error tone and asks you to reselect a network.
The selected network must have a roaming
agreement with your home cellular network.
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