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Network call trace

  • US 6,137,876 A
  • Filed: 12/04/1997
  • Issued: 10/24/2000
  • Est. Priority Date: 12/04/1997
  • Status: Expired due to Term
First Claim
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1. A method for call tracing in a nodal network system having at least a first, second, and third interconnected nodes, said method comprising the steps of:

  • (a) transmitting, from said first node to said second node, a first node identification (NID) list, said first NID list including therein a first NID;

    (b) transmitting, from said second node to said third node, a second NID list, said second NID list including therein a second NID and said first NID; and

    wherein said step (b) further comprises the step of;

    responding to a call trace indication in a Generic Digits Parameter (GDP) of an Initial Address Message (IAM).

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