Multiplex communications – Pathfinding or routing – Combined circuit switching and packet switching
Reexamination Certificate
2008-05-20
2008-05-20
Ryman, Daniel J. (Department: 2616)
Multiplex communications
Pathfinding or routing
Combined circuit switching and packet switching
Reexamination Certificate
active
10150071
ABSTRACT:
A voice over Internet protocol (VoIP) gateway includes a foreign exchange office (FXO), a foreign exchange station (FXS), and a VoIP processor. A controller of the VoIP gateway sets the VoIP gateway to either a TANDEM (trunk and ENM (ear and mouth)) mode or a standalone mode. In the TANDEM mode, the VoIP gateway transmits an incoming call from the VoIP processor to the FXO and an outgoing call from the FXS to the VoIP processor. In the standalone mode, the VoIP gateway transmits the incoming call from the VoIP processor to the FXS and the outgoing call from the FXS to the VoIP.
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Kim Jung-Gi
Lee Dae-Hyun
Bushnell , Esq. Robert E.
Ryman Daniel J.
Samsung Electronics Co,. Ltd.
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