Full-duplex adapter for PBX telephone system
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United States of America Patent
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-
Aug 27, 1996
Grant Date -
N/A
app pub date -
Aug 24, 1994
filing date -
Aug 24, 1994
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An adapter for interconnecting a tip-ring telephone, a PBX telephone, and a private branch exchange (PBX) is configured to pass out-of-band signals between the PBX telephone and the PBX and to attenuate voice-band signals therebetween when the tip-ring telephone is being used. The adapter includes a band-reject filter and a switching mechanism for connecting the band-reject filter between the PBX telephone and the tip-ring telephone.
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Family
International Classification(s)
Cited Art Landscape
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