Great number of entrepreneurs are faced with the problem of effective data accessing concerning sales and cash assets from the trade outlets (shops, supermarkets, stalls). Frequently, it is necessary to connect a cash register directly to a computer with the special software to get such kind of information, that is not always convenient, as the departure to a trade oulpet calls for additional time and expenses.Application of GSM-channel for efficient data communications is a way of solving this problem. For this purpose, one BBOX is connected to a computer with the specialized software or it is used as a corporative server of the consumer's enterprise, and the second - to a cash register of a shop. Involving interface RS232 only one device can be connected to one cash register, in the case of using interface RS485 the connection of several cash registers is possible, that is even more efficient. Simultaneously, necessary corporative services are accomplished such as www, e-mail, ICQ, etc both for employees and managers of this shop and office staff of the consumer's company, using different technologies of data communications (Wi-Fi, Fast Ethernet), which are realized on the level of complex decision models.

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