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Geographic trunk groups

  • US 8,520,668 B2
  • Filed: 06/10/2011
  • Issued: 08/27/2013
  • Est. Priority Date: 11/19/2007
  • Status: Active Grant
First Claim
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1. A method for routing an Internet Protocol (IP)-based call through a first IP-based network to a second IP-based network, the method comprising:

  • receiving an IP-based call request in the first network;

    identifying one or more geographic trunk groups that can be used to route the call request out of the first network, wherein each of the one or more geographic trunk groups represents a logical grouping of one or more IP trunk groups between the first IP-based network and the second IP-based network;

    selecting one of the one or more geographic trunk groups; and

    routing the received call request via the selected geographic trunk group to an IP address associated with the selected geographic trunk group;

    wherein the one or more geographic trunk groups utilize one or more load balance servers (LBS) to aggregate signaling of the one or more IP trunk groups in the one or more geographic trunk groups.

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