Microsoft Corporation RM-69 用户手册
C o n n e c t i v i t y
95
■ GPRS
GPRS [general packet radio service] is a network service that allows
mobile devices to be used for sending and receiving data over an
Internet protocol IP-based network.
mobile devices to be used for sending and receiving data over an
Internet protocol IP-based network.
EGPRS [enhanced GPRS], also known as EDGE [enhanced data rates for
global evolution], is similar to GPRS. For more information on the
availability of EGPRS and data transfer speed, contact your service
provider.
global evolution], is similar to GPRS. For more information on the
availability of EGPRS and data transfer speed, contact your service
provider.
When you have selected
GPRS
as a data bearer, the device uses EGPRS
instead of GPRS if it is available in the network. You cannot select
between EGPRS and GPRS in your device, but for some applications, you
may be able to select either
between EGPRS and GPRS in your device, but for some applications, you
may be able to select either
GPRS
or
GSM data
[CSD—circuit switched
data] as the data bearer. The data bearer is part of the preferred access
point and can be changed in
point and can be changed in
Configuration settings
[see ”Configuration
settings” on page 66].
The applications that may use GPRS are MMS, instant messaging,
browsing sessions, e-mail, remote SyncML, Java application
downloading, and the PC dial-up [for example, Internet and e-mail].
browsing sessions, e-mail, remote SyncML, Java application
downloading, and the PC dial-up [for example, Internet and e-mail].
Before you can use GPRS technology, contact your service provider for
availability of and subscription to the GPRS service and save the GPRS
settings for each of the applications used over GPRS.
availability of and subscription to the GPRS service and save the GPRS
settings for each of the applications used over GPRS.
GPRS connection
Select
Menu
>
Settings
>
Connectivity
>
GPRS
>
GPRS connection
and
one of the following:
Always online
—Set the device to automatically register to a GPRS
network when you switch the device on.
When needed
—Set the device to establish GPRS registration and
connection when an application using GPRS needs it and to close the
connection when you end the application.
connection when you end the application.