For silent alarm: for sending speech/text messages or digital protocols PSTN, ISDN (ISDN module), mobile telephone system (GSM module) and over IP network (Ethernet module).
מילים נרדפות:
Secvest 2WAY
For silent alarm: for sending speech/text messages or digital protocols PSTN, ISDN (ISDN module), mobile telephone system (GSM module) and over IP network (Ethernet module).