Nokia N90 - Manual (Page 109)

Tools
100
Call restriction
Call restriction allows you to restrict the calls that you
make or receive with the phone. 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 forwarding cannot be active at the
same time.
When calls are barred, calls still may be possible to certain
official emergency numbers.
Network
Your phone 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 operator)—
Select which network to use. If you select Dual mode , the
phone uses the GSM or UMTS network automatically,
according to the network parameters and the roaming
agreements between the network operators. Contact your
network operator for more details.
Operator selection —Select Automatic to set the phone 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 phone sounds an error tone and asks
you to reselect a network. The selected network must have
a roaming agreement with your home network, that is, the
operator whose SIM card is in your phone.
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 —Select On to set the phone to indicate
when it is used in a cellular network based on microcellular
network (MCN) technology and to activate cell info reception.
Enhancement settings
Indicators shown in the standby mode:
A headset is connected.
A loopset is connected.
The headset is unavailable, or a Bluetooth
connection to a headset is lost.