Telephonic communications – Diagnostic testing – malfunction indication – or electrical... – Of data transmission
Patent
1998-03-20
1999-08-17
Kuntz, Curtis A.
Telephonic communications
Diagnostic testing, malfunction indication, or electrical...
Of data transmission
379 10, 379 12, 379 22, 379 29, H04M 124, H04M 308, H04M 322
Patent
active
059404736
ABSTRACT:
A signaling test apparatus for testing a trunk register transmitting/receiving signaling, a subscriber service signal tone, a subscriber DTMF transmitting/receiving signaling, and a CCT transmitting/receiving signaling in a switching system. The signaling test apparatus includes a computer interface for communicating with a computer, a PCM interface for communicating with the switching system, a microprocessor for receiving a test command transmitted from the computer through the computer interface and generating a control signal to perform a corresponding test mode, a test signal storage memory for supplying a plurality of test signals having a predetermined frequency to the switching system through the PCM interface under the control of the microprocessor, and a digital signal processor for analyzing the test signal which is fed back from the switching system and received through the PCM interface under the control of the microprocessor.
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Barnie Rexford
Bushnell Esq. Robert E.
Kuntz Curtis A.
Samsung Electronics Co,. Ltd.
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