Telephone line interface for DAA circuitry
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United States of America Patent
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May 15, 2007
Grant Date -
N/A
app pub date -
Apr 15, 2003
filing date -
Apr 15, 2003
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A telephone line interface and associated circuitry that may be implemented to simultaneously couple DC loop voltage, ring bursts, and caller-ID data to the phone line side of a DAA circuit through a single two wire resistively coupled interface. The interface and circuitry may be implemented to combine processing of the DC loop voltage and ring bursts into a single circuit, with processing of caller-ID data being performed separately.
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