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Methods and apparatus to select a peered voice over internet protocol (VoIP) border element

  • US 9,124,603 B2
  • Filed: 08/27/2007
  • Issued: 09/01/2015
  • Est. Priority Date: 08/27/2007
  • Status: Active Grant
First Claim
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1. A method comprising:

  • inserting an additional header field into a session initiation protocol message received from a calling device;

    populating the additional header field with data indicative of a location of a first access border element;

    querying a telephone number mapping database to identify second and third peered border elements associated with the first access border element; and

    selecting one of the second and third peered border elements based on (a) the data of the additional header field, (b) a quantity of hops between the first access border element and one of the second or third peered border elements, and (c) a latency criterion associated with at least one of the second and third peered border elements.

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