Telephone communication system and method over local area network wiring
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United States of America Patent
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Nov 1, 2005
Grant Date -
N/A
app pub date -
Sep 21, 2000
filing date -
Sep 21, 2000
priority date (Note) -
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Abstract
A method and apparatus for enabling a local area network wiring structure to simultaneously carry digital data and analog telephone signals on the same transmission medium. It is particularly applicable to a network in star topology, in which remote data units (e.g. personal computers) are each connected to a hub through a cable comprising at least two pairs of conductors, providing a data communication path in each direction. Modules at each end of the cable provide a phantom path for telephony (voice band) signals between a telephone near the data set and a PBX, through both conductor pairs in a phantom circuit arrangement. All such communication paths function simultaneously and without mutual interference. The modules comprise simple and inexpensive passive circuit components.
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