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System and method of communicating via an in-band tone messaging protocol

  • US 20020186833A1
  • Filed: 03/29/2001
  • Published: 12/12/2002
  • Est. Priority Date: 03/29/2001
  • Status: Abandoned Application
First Claim
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1. A method of data communication, comprising:

  • generating a first series of tones, the first series of tones encoding digital data in a predetermined message format;

    transmitting the first series of tones over a communication medium to a remote device; and

    receiving a second series of tones, the second series of tones encoding a reply to the transmitted first series of tones in the predetermined message format.

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