Nokia N77 - Manual (Page 112)

Settings
112
information about a security module, scroll to it, and
select
Options > Security details .
Call divert
Call divert allows you to divert your incoming calls to
your voice mailbox or another phone number. For details,
contact your service provider.
Select which calls you want to divert and the desired
diverting option. To divert voice calls when your number
is busy or when you reject incoming calls, select
If busy .
Set the option on ( Activate ) or off ( Cancel ), or check
whether the option is activated ( Check status ).
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
Call barring (network service) allows you to restrict the
calls that you make or receive with the device. To change
the settings, you need the barring password from your
service provider.
Select the desired barring option, and set it on ( Activate )
or off ( Cancel ), or check whether the option is active
( Check status ). Call barring affects all calls, including
data calls.
Call barring and call diverting cannot be active at the same
time.
When calls are barred, calls may be possible to the official
emergency number programmed into your device.
Network
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 .
Network mode (shown only if supported by the network
service provider)—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
network service providers. Contact your network service
provider for more details.