Telephone based control system
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United States of America Patent
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-
Nov 5, 1985
Grant Date -
N/A
app pub date -
Dec 2, 1983
filing date -
Dec 2, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A telephone based control system comprises a central control console, a digital time division multiplexed (TDM) telephone system incuding a PBX matrix switch with signal ports adapted for direct connection to PBX primary port telset devices and to the central control console, and including primary port telsets adapted for connection to PBX secondary port devices, the control system further comprising secondary port control units, each connected to an associated one of the primary port telsets, for controlling the operation of one or more controlled devices located in proximity to the associated telsets.
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