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Quality of service on demand

  • US 6,760,312 B1
  • Filed: 11/30/1999
  • Issued: 07/06/2004
  • Est. Priority Date: 11/30/1999
  • Status: Expired due to Term
First Claim
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1. A method for specifying one or more minimum quality of service parameters for a call placed from a first telephone line, having default minimum required quality of service parameters for calls placed therefrom, to a second telephone line, which call is routed over a packet-based network having the default minimum required quality of service parameters for calls placed on the first telephone line, the method comprising the steps of:

  • receiving a QOS request code on the first telephone line, which QOS request code specifies a desired quality of service requirement with associated minimum quality of service parameters different from the default parameters;

    determining applicable minimum required quality of service parameters with which the call should be routed;

    placing the call on the first telephone line;

    routing the call over the packet-based network between the first and second telephone lines with the call quality of service at least satisfying the applicable minimum required quality of service parameters;

    wherein the step of determining the applicable minimum required quality of service parameters is comprised of the substeps of;

    determining that sufficient resources are not available on the packet network to route the call with the requested minimum quality of service parameters;

    querying on the first telephone line whether the call should be routed with guaranteed quality of service parameters lower than those requested for which sufficient packet network resources are presently available, or the call should be delayed until sufficient network resources are available to route the call with the requested quality of service parameters;

    implementing quality of service parameters according to the query response.

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