METHOD TO MAINTAIN END-TO-END ENCRYPTED CALLS THROUGH A TETRA TMO-DMO GATEWAY WHEN USING SUPER GROUPS
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United States of America Patent
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Issued Date -
Jun 21, 2012
app pub date -
Dec 20, 2010
filing date -
Dec 20, 2010
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A method for communicating end-to-end encrypted super group information is provided. Temporary address data, which identifies a temporary address on which the super group is to communicate, is transmitted from a gateway to a back-to-back communications device using a direct mode or data message. The back-to-back communications device retrieves an encryption key associated with the temporary address and uses the encryption key to decrypt super group information sent from a networked communications device on the temporary address. The back-to-back communications reverts back to its original encryption key when super group communications are terminated.
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