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.
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.
Cell info display
●
indicate when it is used in a cellular network based
on microcellular network (MCN) technology and to
activate cell info reception.
Connection settings
In connection settings, you can edit access points and
other connectivity settings.
You can also edit settings for Bluetooth connectivity in
the Bluetooth connectivity application.
"Settings," p. 35.
You can also edit settings for data cable connections in
the USB application.
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,
140
multiple data connections can be active at the same
— Select
On
to set the device to
See
See "USB," p. 38.
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 WLAN data connection. 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 the following:
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.
Access points
Create a new access point
Press
, and select
Tools
Connection
Access
points.
>
You may receive access point settings in a message
from a service provider. Some or all access points may
be preset for your device by your service provider, and
Settings
>
>