In the territorially-distributed systems of restaurant business, retail trade, electro supply, gas supply, petrol stations, etc., where the objects are situated rather far from each other, the absence of communication channels, complexity of construction of satellites and long terms of their laying makes the use of systems of cellular communications GSM economically proved.

The universal complex model of the company allows to minimize the costs of designed systems by means of expansion of their functions: readout from counters, sensors, control of electrical appliances, control of mains supplies, simultaneously presenting a full spectrum of corporate services without damaging the working systems of monitoring/accounting. The model can operate in free running mode - fulfill executive's commands (to transfer data on the demand of executive), and independently (to transfer data at regular intervals or immediately). Apart from data communications by means of the GSM/GPRS modem, the transmission of SMS messages can be accomplished: during the operation of sensors, counters, at the poll command or at regular intervals.