Apparatus for cord-free hands-free telephony
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United States of America Patent
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Mar 6, 2007
Grant Date -
N/A
app pub date -
Mar 4, 2004
filing date -
Mar 4, 2004
priority date (Note) -
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Abstract
A telephone line interface includes a ring detect circuit for activating a RF transceiver and thereby notifying the RF headset of a ringing condition on a telephone line. A wire conversion circuit separates transmit voice signals from receive voice signals and provides the separated voice signals to the RF transceiver. A firmware allows the electronic hook switch to go off hook only when the line is ringing or only when the line is off hook.
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