Telephonic communications – Centralized switching system – Call distribution to operator
Reexamination Certificate
2006-11-14
2006-11-14
Chan, Wing (Department: 2614)
Telephonic communications
Centralized switching system
Call distribution to operator
C379S201020, C379S215010, C370S354000
Reexamination Certificate
active
07136479
ABSTRACT:
A telephone user who is at a first telephone station and is placed on hold at a second station is prevented from listening to an objectionable audio signal while a call is in process between the user and the second telephone station. The objectionable audio signal is detected while the call is in process and the user is prevented from hearing the objectionable audio signal while the objectionable audio signal is being detected. In response to detection of the end of the objectionable audio signal, the user is coupled to the second telephone station.
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Gutta Srinivas
Philomin Vasanth
Trajkovic Miroslav
Im Paul
Koninklijke Philips Electronics , N.V.
Waxler Aaron
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