Multiplex communications – Pathfinding or routing – Combined circuit switching and packet switching
Reexamination Certificate
2006-08-01
2006-08-01
Nguyen, Steven (Department: 2665)
Multiplex communications
Pathfinding or routing
Combined circuit switching and packet switching
C379S393000
Reexamination Certificate
active
07085263
ABSTRACT:
Devices, softwares and methods for network telephony sense if a party that has been placed on hold is talking. If it does, transmitting on hold music or other characteristic sound is discontinued. Accordingly, the other party is not annoyed, such as in a conference call scenario.
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patent: 6404764 (2002-06-01), Jones et al.
patent: 6694012 (2004-02-01), Posthuma
patent: 2002/0119795 (2002-08-01), Dorenbosch
patent: 2002/0136384 (2002-09-01), McCormack et al.
Cisco Technology Inc.
Marger & Johnson & McCollom, P.C.
Nguyen Steven
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