Cordless telephone system
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United States of America Patent
Stats
-
Nov 10, 1987
Grant Date -
N/A
app pub date -
May 11, 1984
filing date -
May 11, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A cordless telephone system includes a control unit having a speaker, a microphone and control circuitry for selective operation in a 'normal' mode for communications between the handset and an outside party, a 'local answer' mode for communications between a party at the control unit and an outside party, an 'intercom' mode for communications between parties at the control unit and the handset and a '3-way' mode for communications between parties at the control unit and handset and an outside party. A microprocessor so responds to ring detect, control and switch-generated interrupt signals as to obtain the desired communications.
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