HTC One Remix - Manual (Page 120)

2. Tap .
3. Say the name of contact you want to call. For example, say "Call
[person's name in phonebook]."
4. Follow screen instructions to make the call.
Dialing an extension number
To skip voice prompts when dialing an extension number, do one of the
following:
§ After dialing the main number, press and hold * . The letter p is
added to the number you are dialing. Enter the extension number,
and then tap Call. You will be connected to the mainline and then to
the extension number.
§ After dialing the main number, press and hold # to add a w. Enter
the extension number after the letter w, and then tap Call. After
connecting to the main line, tap Send to dial the extension number.
You can save phone numbers with an extension in the People app.
Returning a missed call
You'll see the missed call icon in the status bar when you miss a call.
1. Slide the Notifications panel open to check who the caller is.
2. To return the call, spread your two fingers on the missed call
notification to expand it, and then tap Call back.
120 Phone calls