Method and apparatus for remote maintenance procedures

Telephonic communications – Diagnostic testing – malfunction indication – or electrical... – Testing of subscriber loop or terminal

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379 6, 379 27, 379 53, 375224, 370241, 370249, H04M 124, H04M 308, H04M 1100, H04J 116

Patent

active

056872143

ABSTRACT:
A programmable multi-function telecommunications device starts a timer when it detects a first signaling signal, such as a test signal, on a communication channel. If a second signaling signal, such as a ring signal, is detected during a predetermined time period measured by the timer, the information following the ring signal is automatically used for a maintenance function or for program memory upgrade. If the ring signal is not detected during the predetermined time period, the information following the ring signal is provided to the equipment's user interface in a conventional fashion.

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patent: 5452339 (1995-09-01), Siu et al.
patent: 5495516 (1996-02-01), Lee et al.

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