HTC One M8 for Windows - Manual (Page 50)

§ If you need help, say What can I say? to view or listen to
the various types of voice instructions you can use.
Turning on more speech commands
You can turn on additional speech commands in the settings, such as
saving and dialing speed dial numbers. You can also set your phone to
read aloud text messages and allow you to dictate your reply message
without typing.
1. Swipe down from the top edge of the screen with one finger.
2. Tap All settings > ease of access.
3. Tap the Speech for phone accessibility On/Off switch to turn on
additional speech commands for phone calls. You'll be able to use
these commands:
Save speed dial To assign a speed dial number
Call
number To call a speed dial number
Turn call forwarding on/off To turn call forwarding on or off
4. Press to return to the settings list.
5. Tap speech.
6. To make your phone read text messages to you, tap the Read
aloud incoming text messages box. Choose whether you want your
phone to read text messages all the time, or only when you're using
a Bluetooth or wired headset.
50 Your first week with your new phone