FIELD: information technologies.
SUBSTANCE: telephone line is equipped by detector with wireless communication device, for instance radio frequency marker (RFID marker), telephone line voltage is used for power supply of detector, information about events that take place in line is sent to receiving device, telephone line is identified by moment of appearance of signal from detector that is closest in time to the moment of event occurrence, as a result of which detector of, for instance phone ring actuates.
EFFECT: provision of cable telephone system monitoring without connection of additional cables to switching panel.
11 cl, 1 dwg
