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AirCard 700 Series Installation Guide
8
will cause the AirCard to establish a network connection
whenever you insert it, assuming GPRS (General Packet Radio
Service) or EDGE (Enhanced Data GSM Environment) service
is available. Otherwise, you can configure Watcher to connect
only when you select a button.
The AirCard connection provides access to the Internet. Once
the connection is established, you can open your browser and
connect to any web site available on the Internet, or access
other Internet services (such as e-mail).
The AirCard as a mobile phone
If your AirCard is voice-enabled, you can use the AirCard as a
phone simply by connecting an approved headset. The keypad
for the phone is in the Watcher program.
If you want to use the AirCard as a phone, a headset is
necessary. You require a 4-wire headset with a 2.5 mm
connector. Approved headsets are listed on the Sierra Wireless
web site, www.sierrawireless.com.
Differences between the
AirCard 750 and AirCard 775
This manual is a complete guide to both the AirCard 750 and
AirCard 775 wireless network cards. Both are PC Cards that
operate on GSM (Global System for Mobile communications)
networks. The difference between these products is in the data
services and frequency bands they support.
GPRS and EDGE service support
GPRS and EDGE are add-on data services to GSM mobile
phone networks. GPRS provides a maximum data trans-
mission speed of 56 kbps while EDGE provides a maximum
data transmission speed of 216 kbps. The
AirCard 750 supports GPRS while the AirCard 775 supports
GPRS and EDGE service.
Frequency band support
Every GSM network operates on one of these radio frequency
bands:
•
850 MHz band—used by some North American service
providers
2130204CEFCC
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