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System and method for dual mode communication

  • US 9,668,190 B2
  • Filed: 08/27/2014
  • Issued: 05/30/2017
  • Est. Priority Date: 01/19/2012
  • Status: Active Grant
First Claim
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1. A method of communication, the method comprising:

  • substantially continuously detecting, by a dual-mode device (DMD), a signal level of a cell tower of the cellular phone network available to a cell phone that has established a telephone call at a first end of the call to a second end of the call through the cellular phone network, the cell phone communicating over the air directly between the cell phone and the cell tower; and

    if the detected signal level of the cellular phone network falls below a specified threshold, presenting a cellular transceiver in the DMD to the cell phone as a cell tower in communication with a satellite of a second network to enable the cell phone to hand over the established telephone call to the DMD to provide an uninterrupted service.

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