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End to end acknowledgment of SMS messages

  • US 8,442,562 B2
  • Filed: 07/17/2009
  • Issued: 05/14/2013
  • Est. Priority Date: 07/18/2008
  • Status: Active Grant
First Claim
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1. A method that acknowledges a receiving cell phone'"'"'s receipt of SMS messages from a sending cell phone, comprising:

  • receiving a short message service (SMS) message at the receiving cell phone from the sending cell phone;

    in response to receiving said SMS message, the receiving cell phone automatically initiating a missed call that is configured to provide acknowledgement of the receiving cell phone'"'"'s receipt of said SMS message,wherein said automatically initiating a missed call comprises initiating a call to the sending cell phone by sending a ring back from receiving cell phone to the sending cell phone and terminating the call before being answered at the sending cell phone;

    the call from the receiving phone to the sending cell phone configured to cause the sending cell phone, in response to receiving the ring back within a predetermined amount of time, to refrain from resending the SMS message;

    wherein the act of initiating a missed call is performed by the receiving phone dependent on a particular geographical location detected using the receiving cell phone'"'"'s GPS function.

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