Telephonic communications – Diagnostic testing – malfunction indication – or electrical... – Of centralized switching system
Patent
1994-09-13
1998-04-07
Kuntz, Curtis
Telephonic communications
Diagnostic testing, malfunction indication, or electrical...
Of centralized switching system
379 14, 379 15, 379 26, H04M 308, H04M 322
Patent
active
057373906
ABSTRACT:
A digital key telephone system which is connected to a digital network via a digital channel, a transmission error which has occurred on the digital channel is detected, and upon detection of the transmission error, information representing the transmission error is stored in an error table. When a display request of a transmission error is input from a digital key telephone, error information stored in the error table is read out, the readout information is transferred to the digital key telephone, and the information is displayed on a display of the telephone.
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Kabushiki Kaisha Toshiba
Kuntz Curtis
Shankar Vijay
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