Multi-purpose central telephone management system

Details Multi-purpose central telephone management system Multi-purpose central telephone management system

H - Electricity

04

M

H04M 3/22 (2006.01) H04M 3/42 (2006.01) H04Q 3/74 (2006.01) H04M 3/18 (2006.01) H04M 3/54 (2006.01) H04M 3/56 (2006.01) H04M 3/58 (2006.01)

Patent

CA 2235469

The present invention relates to a multi-purpose central telephone management system comprising a micro-controller means adapted to control the system by a predetermined set of commands generated by the micro-controller, a first relay means connected to the micro- controller means, and a second relay means which is controlled by the micro-controller means and is adapted to facilitate all call activities of the system. The system also comprises a caller ID decoder means, a DTMF decoder means, and a DTMF generator means, all of which are connected to the micro-controller means. The caller ID decoder means is adapted to supply the micro-controller means with call progress signals activating the telephone line, the DTMF decoder is adapted to provide the micro-controller means with any dial-tone signals generated by the telephone line, and the DTMF generator means is adapted to transform commands generated by the micro- controller means into the dial-tone signals provided to be transmitted through the telephone line. The system is provided with a second relay means which is connected to the micro- controller means; this second relay means is adapted to control the connection between a telephone line monitored by the central system and a receiving device connected to the telephone line. The system is supplied by power necessary to operate the system by means of a power supply element, and it is protected against over-voltage and over-current by a phone line protection circuit means. The micro-controller is provided with a non-volatile memory capable to permanently store all commands by means of EEROM memory. and the system is provided with an LED display indicating an active mode of the system.

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