Technical Manual

1. INTRODUCTION
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LZT 123 7607 R1B
1.3.4 Data Services
The GT47 supports the following data protocols:
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GT47 is a Class B terminals, which provide simultaneous activation
and attachment of GPRS and GSM services. GT47 is a GPRS class 8
(4+1) enabled devices, which are capable of transmitting in one
timeslot per frame (up link), and receiving at a maximum of four
timeslots per frame (down link).
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GT47 is a capable of establishing a CSD communication at 9.6 kbps.
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GT47 supports HSCSD class 2 (2+1) communication, with one
timeslot per frame capacity in the up link and two timeslots per frame
capacity in the down link.
1.3.5 Fax Services
The GT47 allows fax transmissions to be sent and received by commercial
fax software installed on the application computer. Group 3 fax Classes 1
and 2 are supported.
1.3.6 Supplementary Services
• Call forwarding
• Call hold, waiting and multiparty
• Calling/called number identification
• Advice of charge
•USSD
• Alternate line service
• Customer service profile
• Preferred networks
• Operator selection
• Network registration
• Call barring
• Call transfer
1.3.7 Serial Communication
The GT47 enables an end-to-end communication path to be established
between the telemetry/telematics application, either hosted internal or
connected externally, and a remote terminal or host, via the GSM network.