Monitoring equipment for transmitting / receiving data to two DSL-modem with Ethernet-output. The system is following .The initiator of the communication session transfer of an existing message or a signal of life (test message) - unit. Devices transmit signals of life on the main IP-address monitoring station (a modem) in accordance with a specified interval (10-990 seconds). Console software handles incoming packets and provides acknowledgment packets. In the case of events at the facility, the device connects to the central station, regardless of the interval signal of life.
    In both cases (a message or a signal of life), the algorithm of the device provides up to three attempts to connect to the monitoring station. In case of failure, the possibility of transferring data to an alternate IP-address monitoring station (second modem).
   It is possible to survey the state of the device or install it from under the guard of the monitoring station. The survey carried out in the channel through GPRS or dial-up to the usual GSM-modem (if available in the CSC GSM-modem) to the telephone number of the device. The device determines the call from the monitoring station and is responsible in the channel GPRS.
   The software "MOST" is the ability to customize the time of control communication for each individual object. If during this time that has elapsed from the last communication, the device did not pass the next test signal is formed at the central station alarm message.