State monitoring method and apparatus in subscriber line test

Details State monitoring method and apparatus in subscriber line test State monitoring method and apparatus in subscriber line test

H - Electricity

04

M

H04M 3/30 (2006.01) H04L 29/10 (2006.01) H04M 1/738 (2006.01) H04M 11/06 (2006.01)

Patent

CA 2356210

In a state monitoring method in a subscriber line test in a communication system in which a subscriber telephone and a subscriber terminal are independently connected to a telephone exchange and an ADSL (Asymmetric Digital Subscriber Line) apparatus through a subscriber line, the telephone exchange to which a first control terminal is connected is connected, through an interface, to the ADSL apparatus to which a second control terminal is connected. A line blocked state due to a line test instruction is notified from one of the first and second control terminals to the other of the first and second control terminals through the interface. Upon receiving the notification of the line block state due to the line test instruction, the other of the first and second control terminals determines that the line blocked state is not caused by a fault. A state monitoring apparatus is also disclosed.

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