Nokia N81 - Network

Settings
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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 restriction (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 restriction 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 certain
official emergency numbers.
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 service provider
for more details.
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 of
networks. 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.
Glossary: A roaming agreement is an agreement
between two or more network service providers to
enable the users of one service provider to use the
services of other service providers.
Cell info display—SelectOn to set the device to indicate
when it is used in a cellular network based on microcellular