Telephonic communications – Diagnostic testing – malfunction indication – or electrical... – Of trunk or long line
Patent
1998-02-11
2000-11-28
Kuntz, Curtis A.
Telephonic communications
Diagnostic testing, malfunction indication, or electrical...
Of trunk or long line
379 10, 379 15, 379 16, 370249, 370251, H04M 124
Patent
active
061545236
ABSTRACT:
A system and method for connecting a voice band link box to a telephone switch to facilitate trunk-related testing. The system includes a remotable trunk transmission unit being interconnected to the telephone switch and interfacing with the testing device, a voice band link box having an input interface being interconnected to the remotable trunk transmission unit and an output interface being interconnected to a digital trunk of the telephone switch, and an output device being interconnected to the telephone switch. The testing device interfaces with the remotable trunk transmission unit and places a call by transmitting an analog signal via the remotable trunk transmission unit directed to the output device. The voice band link box receives the analog signal at its input interface, converts the analog signal to a digital signal and routes the digital signal from the output interface over the digital trunk of the telephone switch. The call is received at the output device.
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Hofmann Robert J.
Jones Douglas W.
Koppany Karl T.
Lutz Michael J.
AT&T Corp
Kuntz Curtis A.
Tieu Binh K.
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