METHOD WHICH SCANS A PARTY LINE IN REMOTE CONTROL SYSTEM

摘要

A method for scanning the state of a subscriber in the integrated remote information system is performed by; operating the timer receiving a frequency among the DTMF frequency transmitted from domestic equipment (208) after connecting the subscriber line without dialing by controlling the multiplexer (204) connected to the main distributing frame (205) for checking the normality of domestic equipment; informing the communication incapability with the domestic equipment if the DTMF frequency is not received within the time out; preparing for scanning the normality of domestic equipment after cutting off the subscriber line in the case of receiving the DTMF frequency.