
GM29 INTEGRATOR’S MANUAL
2.4.3 Voice Calls
The GM29 offers the capability of mobile originated and mobile terminated voice calls, as well as supporting emergency calls.
For the
DTMF (Dual Tone Multi Frequency) is supported.
2.4.4 Data
The modem supports the following data protocols:
•GPRS (General Packet Radio Service).
Modems are Class B terminals, which provide simultaneous activation and attachment of GPRS and GSM services. GM29 modems are 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).
•CSD (Circuit Switched Data).
GM29 modems are capable of establishing a CSD communication at 9.6kbps.
•HSCSD (High Speed Circuit Switched Data).
GM29 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.
2.4.5 Fax
The GM29 allows fax transmissions to be sent and received by commercial software installed on the application computer. Group 3 fax Classes 1 and 2 are supported.
2.4.6Supplementary 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
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LZT 123 7361 R1A