In the sound menu, it would be nice to have the ability to toggle voice control with an assignable sim variable. Having multiple would be even better - one for sim controls, one for ATC interactions. That way similar phrases could be used for either function. Further, it would be nice if it recognized the set tail number for initiating ATC comms with the transmit button pressed. i.e. if it hears "N12345" in the phrase "Approach, N12345 request VFR flight following" it could bring up the ATC window with the option. Alternatively, saying "Gear Up" without pressing transmit could act in a crew environment as asking the pilot not flying to raise the gear... and the gear goes up.
Just an idea!