Transmission of alarms by GPRS / GSM to the receiver R10. Fully transparent panels CONTACT ID alarm protocol. Continuous monitoring of the state of telephone line PSTN. Line monitoring ongoing GSM and configurable by probing the receiving R10. Main Canal transmission GPRS, PSTN and Secondary SMS third in case of unavailability. Automatic switching to transmit mode PSTN If there is no connectivity. Programming "in situ" prior password by SMS. Compatible with VPNs. It has 4 configurable digital inputs for CRA sending alarms to the user and / patrol. It has 4 outputs to notify: Loss of Connectivity, Loss of Coverage, Line loss or PSTN, or 4 for domotic applications.