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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 network.
Cell info display — Set the device to indicate when it is used in a cellular network
based on microcellular network (MCN) technology and to activate cell info reception.
Wi-Fi/WLAN connection
Your device can detect and connect to wireless local area networks (WLAN). Using a
WLAN, you can connect your device to the internet and compatible devices that have
WLAN support.
About Wi-Fi
To use a Wi-Fi connection, it must be available in the location, and your device must be
connected to the Wi-Fi. Some Wi-Fi networks are protected, and you need an access key
from the service provider to connect to them.
Note: Using Wi-Fi may be restricted in some countries. For example, in France,
you are only allowed to use Wi-Fi indoors. For more information, contact your local
authorities.
Features that use Wi-Fi, or that are allowed to run in the background while using other
features, increase the demand on battery power and reduce the battery life.
Your device supports the following Wi-Fi features:
• IEEE 802.11b/g and WAPI standards
• Operation at 2.4 GHz
• Wired equivalent privacy (WEP) with keys up to 128 bits, Wi-Fi protected access
(WPA), and 802.1x authentication methods. These functions can be used only if they
are supported by the network.
86 Connectivity