Visonic internal GSM module supports normal GSM SIM card. You can receive calls and SMS for all the alerts and alarms on up to 8 different number. Send simple SMS commands to the panel to Arm, Disarm and to know the current status of the panel. Fits...
Technical introduction to GSM modem technology FACTS AND APPLICATIONS OF GSMGPRS MODEM The GSMGPRS Modem comes with a serial interface through which the modem can be controlled using AT command interface. An antenna and a power adapter are provided....