Voice over internet protocol gateway and a method for controlling the same
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United States of America Patent
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May 20, 2008
Grant Date -
Nov 28, 2002
app pub date -
May 20, 2002
filing date -
May 26, 2001
priority date (Note) -
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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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