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DELIVERING CORRECT NUMBER INFORMATION IN A PRIVATE SIP NETEWORK

  • US 20140341210A1
  • Filed: 05/15/2013
  • Published: 11/20/2014
  • Est. Priority Date: 05/15/2013
  • Status: Active Grant
First Claim
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1. A method performed by a computer device, the method comprising:

  • receiving, by the computer device, a first Session Initiation Protocol message from a telephone device;

    selecting, by the computer device, a first destination back-to-back user agent, and a first screened telephone number associated with the first destination back-to-back user agent, based on a call sequence;

    generating, by the computer device, a second Session Initiation Protocol message based on the received first Session Initiation Protocol message, wherein the second Session Initiation Protocol message includes a first destination address, associated with the selected first destination back-to-back user agent, and the first screened telephone number;

    sending, by the computer device, the second Session Initiation Protocol message to the selected first destination back-to-back user agent;

    determining, by the computer device, that an acknowledgement response has not been received from the first destination back-to-back user agent;

    selecting, by the computer device, a second destination back-to-back user agent, and a second screened telephone number associated with the second destination back-to-back user agent, based on the call sequence, in response to determining that the acknowledgement response has not been received from the first destination back-to-back user agent;

    generating, by the computer device, a third Session Initiation Protocol message based on the received first Session Initiation Protocol message, wherein the third Session Initiation Protocol message includes a second destination address, associated with the selected second destination back-to-back user agent, and the second screened telephone number; and

    sending, by the computer device, the third Session Initiation Protocol message to the selected second destination back-to-back user agent.

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