For a true hand free experience, it would be nice to wake up genie with a voice command. Essentially it would be nice to give a command such as "Genie wake up" which would be the same as pressing the call button. This could be useful for staff in the OR for instance, that may not want to touch their device if they were working on a case.
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The Hot Word feature was released as part of the 5.0.3 firmware update for the V5000.