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PABX common channel relay system

  • US 5,274,634 A
  • Filed: 09/24/1992
  • Issued: 12/28/1993
  • Est. Priority Date: 09/30/1991
  • Status: Expired due to Term
First Claim
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1. A switching system comprising:

  • (a) line or network interface circuits for connection to peripherals and trunks,(b) peripheral nodes for controlling groups of said line or network interface circuits,(c) a main control and switching means,(d) means for transmitting data between the peripheral nodes and the main control and switching means, including a high data rate bus connected therebetween,(e) means in the peripheral nodes for receiving data transmitted by the peripherals and/or trunks and for adding in said data an identifier of a line or network interface circuit port address of the peripheral or trunk transmitting source of said data,whereby the transmitting means can transmit said data with said port address to the control and switching means in order that the control and switching means can recognize the source of said data and route said data accordingly.

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