HTC One (M8) for Windows
Voice Activated Dialing - HTC One (M8) for Windows
Voice Activated Dialing - HTC One® (M8) for Windows®
To use voice activated dialing,
set up and launch Cortana
From the Start screen, swipe left to display the Apps list.
(located in the lower-right; may require scrolling to the bottom of the Start screen).
Alternatively, tap the
(located at the bottom, on the right).
Tap the microphone then speak your command.