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120
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—Select On to 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.
Connection
To edit access point and other connection settings, press
, and select Tools > Settings > Connection >
Bluetooth, USB, Access points, Packet data, Wireless
LAN, Data call, SIP settings, Internet telephone settings,
Configurations, or APN control.
For USB settings, see ‘USB’, p. 76.
For settings for Bluetooth connectivity, see ‘Bluetooth
connectivity’, ‘Settings’, p. 73.
Data connections and access points
Your device supports packet data connections (network
service), such as GPRS in the GSM network. When you use
your device in GSM and UMTS networks, multiple data
connections can be active at the same time, and access
points can share a data connection. In the UMTS network,
data connections remain active during voice calls.
You can also use a wireless LAN data connection. See
‘Wireless LAN’, p. 70. Only one connection in one wireless
LAN can be active at a time, but several applications can
use the same internet access point.
To establish a data connection, an access point is required.
You can define different kinds of access points, such as:
• MMS access point to send and receive multimedia
messages
• Internet access point (IAP) to send and receive e-mail
and connect to the internet
Check the type of access point you need with your service
provider for the service you want to access. For availability
and subscription to packet data connection services,
contact your service provider.