I have just upgraded to a MAXX. I have used voice dial activated by pressing the headset button on various phones for many years.
I have two issues with this application on the MAXX
If I set the phone to in-pocket detection and press the button on the earpiece and the phone is in my pocket or case,.the voice dial starts but immediately terminates.
Without the in-pocket detection on it generally works OK. BUT, When I press the button on the headset to start the voice dial, It unlocks the screen making it possible for the call to be ended accidently..