TAG MIL-BOOK 200 - Manual (Page 52)

Operating Your Computer 2-25
After you establish a subscription with a GSM/GPRS service provider,
you can use the wireless data features of your computer. Check with your
service provider for a list of available wireless data services. Your service
provider may charge additional fees for use of data services.
There are two methods for wirelessly connecting to an ISP or network:
GSM data transmission (circuit-switched data)
GSM data services enable you to use the GSM component of your
computer as a built-in modem. You can use the service to connect to
the Internet through an ISP or dial in to a corporate network to browse
the Web or send and receive e-mail messages.
GPRS data transmission
GPRS is a high-speed data-on service that enables you to transmit
data over a mobile network. Subscribing to a GPRS service allows
you to transfer files, browse the Web and receive streaming audio and
video on your computer.
The wireless modem indicator ( ) glows to indicate that the computer
is ready for wireless modem connection.
Connecting Using the GSM Modem
Your computer can send and receive data via a mobile network using the
GSM protocol.
To send or receive data over a GSM network, you must have an account
with a service provider that supports GSM data services, and the service
provider must enable the data features on your account.