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This paper is focused on the design and realization of secure long-line data connection in GSM network. The developing module Motorola MPC860 was used in this solution. This module is based on the operating system Linux. This operating system became the basis for the script development in the realization of automated longline measuring system in GSM networks. The GSM modem Siemens MC39i is implemented in this system with a view to communication with mobile operator. This system enables data transmission by the help of GPRS technology. The secure communication is implemented by VPN connection between particular communication endpoints and the server.
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