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Call setup request confirmation

  • US 8,184,799 B2
  • Filed: 10/16/2008
  • Issued: 05/22/2012
  • Est. Priority Date: 01/06/2003
  • Status: Expired due to Fees
First Claim
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1. A method, comprising:

  • providing an indication that a call setup request is being processed in response to the call setup request being received at an internet protocol private branch exchange;

    receiving a call setup request confirmation in response to the call setup request being received at the internet protocol private branch exchange;

    providing a ring back message to the internet protocol private branch exchange in response to a call setup completed message, wherein the internet protocol private branch exchange causes a voice over internet protocol device to provide a ring back as an indicator of call setup completion; and

    terminating the call setup request confirmation in response to the call setup completed message.

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