Telephonic communications – Diagnostic testing – malfunction indication – or electrical... – Testing of subscriber loop or terminal
Patent
1995-12-07
1999-01-12
Loomis, Paul
Telephonic communications
Diagnostic testing, malfunction indication, or electrical...
Testing of subscriber loop or terminal
379221, 379399, 359167, 359117, 320217, 320225, H04M 124, H04M 760, H04B 1000, G01R 3108
Patent
active
058598952
ABSTRACT:
The drop wiring from an optical network unit (ONU) to a customer premise includes one or more working circuits and at least one auxiliary circuit. The network interface device at the customer premises is switchable. The interface device normally couples the working circuits to corresponding customer premises wiring circuits. The ONU and the switchable network interface device (SNID) can be automatically activated to activate communication via the auxiliary circuit. For example, if a primary telephone circuit fails or is predicted to fail, the ONU is automatically instructed to place the telephone communications on the auxiliary circuit, and the network instructs the SNID to connect the auxiliary circuit to the customer premises telephone wiring. The automatic activation and switching also facilitates automatic provision of a second line service using the auxiliary circuit.
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Blake John
Highley Patricia
Mullally John
Pomp Steve
Ragg Walter
Bell Atlantic Network Services Inc.
Loomis Paul
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