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Switch device for relayin G cells or packets on demand

  • US 6,359,909 B1
  • Filed: 05/09/1997
  • Issued: 03/19/2002
  • Est. Priority Date: 05/09/1996
  • Status: Expired due to Fees
First Claim
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1. A switch device in a communicationa communication controller which performs a signaling control of respective signaling messages including a cell set-up and a call release requested by a terminal handling a fixed length cell in accordance with communication protocol;

  • and a restart controller which performs a call release process for a call using a virtual path and a virtual channel managed by the communication controller in accordance with a restart request for a new call, wherein the communication restart controller includes a connection analysis controller interposed between the user terminal and the switch device; and

    when the connection analysis controller receives the restart request from the user terminal, the connection analysis controller determines whether information concerning a connection included in the restart request indicates an intolerable connection, and accepts the restart request if a determination result is negative, and wherein the connection analysis controller selectively makes a first decision to a permanent virtual circuit, a second decision to a signaling ink, and/or a third decision to the permanent virtual circuit and the signaling link.

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