HTC One M9 - Manual (Page 113)

Phone App 100
Enable Wi-Fi Calling
1. Tap > > Settings.
2. Tap the Wi-Fi Calling ON/OFF switch and then tap PROCEED in the dialog box.
3. Read the 9-1-1 Wi-Fi Calling information, and then enter your address to register for 9-1-1
emergency calling. Tap OK.
You can now make and receive phone calls and send and receive text messages over Wi-Fi.
Make a Call Using Wi-Fi Calling
Call your contacts using Wi-Fi Calling.
1. Tap > .
2. Enter the phone number of the contact, and then tap .
3. To hang up, tap .
Turn Off Wi-Fi Calling
Turn Wi-Fi Calling off when you don't need it.
1. Tap > > Settings.
2. Tap the Wi-Fi Calling ON/OFF switch.
Call Settings
Your phone’s Call settings menu lets you configure your voicemail options and a number of
accessibility options such as hearing-aid amplification and teletypewriter.
Call Settings Options
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See Call Settings for details.
Change Ringtone Settings
You can change how your phone alerts you when you receive calls.
Switch Between Silent, Vibrate, and Normal Modes
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To change from silent to normal mode, press the Volume Up button.
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To change from vibrate to normal mode, press the Volume Up button twice.