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Methods, systems, and devices for providing voice-call services responsive to a dialed sequence

  • US 8,345,667 B2
  • Filed: 12/17/2009
  • Issued: 01/01/2013
  • Est. Priority Date: 08/29/2005
  • Status: Expired due to Fees
First Claim
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1. A method of establishing a connection between a Public-Switched Telephone Network and an Internet Protocol network, the method comprising:

  • receiving a Dual Tone Multi-Frequency signal corresponding to a dialed sequence at a port of a network access device, the port having a first numerical sequence associated therewith;

    identifying the dialed sequence as a request for a specified service, wherein the specified service is different than a connection with a port associated with the dialed sequence;

    populating an origination field of a session initiation protocol message with the first numerical sequence;

    populating a destination field of the session initiation protocol message with a second numerical sequence that is different from the dialed sequence responsive to identifying the dialed sequence as the request for the specified service; and

    transmitting the session initiation protocol message including the first numerical sequence and the second numerical sequence from the network access device to a server over a packet-switched network to request the specified service.

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