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Telecommunications tandem system for circuit-based traffic

  • US 6,014,378 A
  • Filed: 11/22/1996
  • Issued: 01/11/2000
  • Est. Priority Date: 11/22/1996
  • Status: Expired due to Term
First Claim
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1. A telecommunications tandem system for providing a tandem connection for a call, wherein the tandem system comprises;

  • a first ATM interworking multiplexer that is operational to receive circuit-based traffic for the call from a first circuit-based connection, to convert the circuit-based traffic into ATM cells that identify a selected virtual connection based on a first control message, and to transmit the ATM cells;

    an ATM cross-connect that is connected to the first ATM interworking multiplexer and that is operational to receive the ATM cells from the first ATM interworking multiplexer and to route the ATM cells based on the selected virtual connection identified in the ATM cells;

    a second ATM interworking multiplexer that is connected to the ATM cross-connect and that is operational to receive the ATM cells from the ATM cross-connect, to convert the ATM cells into the circuit-based traffic, and to transmit the circuit-based traffic over a selected second circuit-based connection based on a second control message; and

    a signaling processor that is linked to the first ATM multiplexer and the second ATM multiplexer and that is operational to receive and process telecommunications signaling for the call to select the virtual connection and the second circuit-based connection, to provide the first control message for the call to the first ATM multiplexer, and to provide the second control message for the call to the second ATM multiplexer, wherein the first control message identifies the first circuit-based connection and the selected virtual connection, wherein the second control message identifies the selected virtual connection and the selected second circuit-based connection, and wherein the first circuit based connection, the selected virtual connection, and the selected second circuit based connection form the tandem connection.

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