Multiplex communications – Pathfinding or routing – Combined circuit switching and packet switching
Reexamination Certificate
2011-04-12
2011-04-12
Gauthier, Gerald (Department: 2614)
Multiplex communications
Pathfinding or routing
Combined circuit switching and packet switching
C370S389000, C370S401000, C379S088170, C379S258000
Reexamination Certificate
active
07924814
ABSTRACT:
The invention provides a method and apparatus for enabling DTMF signal processing in the core VoIP network. More specifically, the present invention enables a VoIP network to recognize and respond to special DTMF signals entered by a user and initiate the appropriate service logic response to satisfy the user's service request.
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Croak Marian
Eslambolchi Hossein
AT&T Intellectual Property II L.P.
Gauthier Gerald
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