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Call setup request confirmation

  • US 7,450,563 B2
  • Filed: 01/06/2003
  • Issued: 11/11/2008
  • Est. Priority Date: 01/06/2003
  • Status: Active Grant
First Claim
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1. A method, comprising:

  • from a Voice over IP device, receiving a call setup request at an IP PBX, the call setup request an SIP invite;

    automatically providing an indication that the call setup request is being processed, the indication provided responsive to a call setup request confirmation received from the IP PBX as an out-of-band signal, the indication comprising an audible announcement of a directory name associated with a called number; and

    responsive to a received call setup completed message, providing a ring back message to the IP PBX, the IP PBX adapted to cause the Voice over IP device to provide a ring back as an indicator of call setup completion.

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