Telephony-enabled network processing device with separate TDM bus and host system backplane bus
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United States of America Patent
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May 29, 2001
Grant Date -
N/A
app pub date -
Oct 10, 1996
filing date -
Oct 10, 1996
priority date (Note) -
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Abstract
A PC-based server platform includes a first backplane bus used for transferring data and commands to various PC peripheral devices. A network router and a telephony endpoint card are coupled to the backplane bus and separately coupled through a second Time Division Multiplexed (TDM) bus. The router includes interfaces to various packet switched networks such as a Wide Area Network (WAN) and a Local Area Network (LAN). The TDM bus is used to route telephony data between the different Internet Protocol (IP)-based networks and the telephony card independently of the host system. The PC host processor also uses the router as a standard LAN interface for transferring data packets. A DSP voice processing card is coupled between the backplane bus and the TDM bus to compress and decompress the telephony data transferred on the TDM bus.
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