Pre-ring caller identification apparatus and method and call screening therefrom
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 28, 2000
Grant Date -
N/A
app pub date -
Jul 16, 1997
filing date -
Jul 16, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A telephone apparatus for screening calls on the basis of messages containing message data, the messages being transmitted by a central office before a first ring burst is transmitted by the central office. The apparatus includes a message receiver, a decoder, a ringer and a ringer controller. The message receiver is in communication with the central office line and is operable to receive a message while the telephone is on-hook. The decoder decodes the message to extract the message data from the message. The ringer is operable to sound an audible alarm when a telephone call is received and the ringer controller prevents the ringer from sounding in response to the first ring burst, when the message data satisfies a pre-defined condition.
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Family
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