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Signaling protocol for controlling voice calls in a packet switching network

  • US 6,658,022 B1
  • Filed: 06/30/1999
  • Issued: 12/02/2003
  • Est. Priority Date: 09/30/1998
  • Status: Expired due to Term
First Claim
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1. A first signaling apparatus for establishing a voice call bearing voice data through a packet-switching network, said signaling apparatus comprising:

  • a first communication interface coupled to a coding unit so as to communicate information therewith;

    a second communication interface coupled to a second signaling apparatus so as to communication information therewith;

    one or more processors coupled to the first communication interface, the second communication interface; and

    a memory coupled to the one or more processors and storing instructions which, when executed by the one or more processors, cause the first signaling apparatus to perform the steps of;

    receiving a set of signaling data for establishing the voice call in a first protocol, generating messages encapsulating the set of signaling data in accordance with a second protocol, wherein each of said messages in accordance with the second protocol includes a call identifier that uniquely identifies said voice call within said packet-switching network, transmitting the messages to the second signaling apparatus using a third protocol, wherein the third protocol is a signaling protocol and wherein the first protocol is different than the second protocol, and the second protocol is different than the third protocol.

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