Apparatus for blocking voice band signals when receiving caller identification information for a waiting call
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 4, 1999
Grant Date -
N/A
app pub date -
Feb 3, 1997
filing date -
Feb 3, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An improved caller identity on call waiting unit permits caller identification signals to be received without changing the direct current state of a customer telephone station. This is accomplished by using a capacitor/inductor circuit with appropriate bypass to accomplish the function of blocking voice band signals to and from the station. Advantageously, such an arrangement avoids the problem of falsely disconnecting calls on hold.
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