Enhanced call-waiting service
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 28, 1987
Grant Date -
N/A
app pub date -
Mar 13, 1985
filing date -
Mar 13, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A process for controlling a telephone switching system is disclosed which gives a telephone customer alternative ways of handling an incoming call while that customer is engaged with an existing call. The conventional call-waiting process is modified by permitting the dual tone multifrequency buttons to be operated for a predetermined short interval after the call-waiting signal is given to the called customer responsive to the particular tone signals keyed. The switching system is enabled to send busy tone or a predetermined announcement to the calling party or to reroute the calling party to an alternate destination.
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Family
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Cited Art Landscape
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