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Mode shifting communications system and method

  • US 20050213518A1
  • Filed: 03/23/2004
  • Published: 09/29/2005
  • Est. Priority Date: 03/23/2004
  • Status: Active Grant
First Claim
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1. A method for communicating among at least two devices over a data network, the method comprising:

  • establishing a voice communications session in a session over a data link between a first station and at least one remote station, the session operating in a first mode that is one of a simplex mode and a duplex mode;

    sending a control command over the data link to change from the first mode to a second mode, the second mode being a mode different from the first mode; and

    changing, while maintaining the session, the session from the first mode to the second mode.

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