Asus P835 - Manual (Page 76)

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Phone pad features
Tap to put a call on hold
Tap to launch the Call History
Tap to launch Menu
Displays the current call status
Tap to mute/unmute a call
Tap to launch the Contacts list
Tap to switch between keypad and call
status screen
Tap to turn the speaker on/off
Tap to take notes
Contacts
Tap to show/hide the keypad
Back arrow
Tap to launch Menu
Tap to make a call
Tap to open the Contacts list