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Dolphin® 9500 Series Mobile Computer User’s Guide 9 - 1

Wireless WAN Communications with GSM/GPRS

Overview

Dolphin 9500 terminals can be configured with Wireless Wide Area Network (WWAN) via an integrated Siemens

GSM/GPRS

tri-band radio module.

Note: Dolphin 9550 mobile computers with pistol-grip do NOT support GSM/GPRS.

GSM - GSM stands for Global System for Mobile communications. It is an open, non-proprietary wireless wide area networking

system that is constantly evolving and growing. One of its great strengths is international roaming capability, which provides

standardized dialing in more than 170 countries.

GPRS - GPRS stands for General Packet Radio Service. It is a non-voice value added service that allows packet switched data

and information to be instantly sent and received across a mobile telephone network.

Powering Up the GSM/GPRS Radio Driver

When the mobile computer is first initialized, the radio driver for the GSM module is installed. Before using the radio, make sure

that the GSM radio is powered up. For more information,

see The Radio Manager on page 4-18.

Tri-Band Antenna

Requirements

Using GMS/GPRS on a Dolphin 9500 terminal requires:

• a network subscription to a GSM/GPRS network (you need to know what service providers are in your geographic area), and

• a SIM card that has been activated by the network service provider installed on the terminal.

Capabilities

Dolphin 9500 computers with integrated GSM/GPRS WWAN radios are optimized for the following two-way voice and data

communications:

• GSM voice data ("dial-up")

• SMS (Short Message Service) text messages

• GPRS Class 10 - data transmissions average. 40-60 Kbps (wireless network carrier dependent)

Dolphin 9500 terminals configured with a GSM/GPRS

radio feature a tri-band antenna that supports 900,

1800 and 1900 MHz frequencies for worldwide mobile

applications.

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