Patent ID: 6014369
Filing Date: 2000-01-11
Classification: H04M

Abstract:
A method of testing subscriber sets connected to a service node, said service node connected through a first bidirectional multiplex transmission line, which provides bidirectional communication channels for each of the subscriber sets, to a remote terminal, said remote terminal connected through a second bidirectional multiplex transmission line to a central office exchange, said method comprising the steps of:sending a first command signal ordering a test of said subscriber sets, connected to the service node, through the central office exchange and the second bidirectional multiplex transmission line to the remote terminal;sending a second command signal from the remote terminal through the first bidirectional multiplex transmission line to the service node in response to the first command signal, said second command signal derived from said first command signal;testing and evaluating results of the test of the subscriber sets within the service node in response to the second command signal;sending a first return signal including results of the evaluation of the subscriber sets from the service node through the first bidirectional multiplex transmission line to the remote terminal; andsending a second return signal from the remote terminal through the second bidirectional multiplex transmission line and central office exchange in response to the first return signal.