User guide

Description
DT412/DT422/DT43212
2 Volume Up/Down
Off-hook: raise/lower speaker volume, see section “Audible
Adjustments” on page 119. The Volume Up key can also be used
to answer calls, see section “Answer calls” on page 32.
3Display
The display can for example show the battery status, time,
system, owner ID/name, extension number and the Soft key
information. See sections “Display information” on page 14 and
“Menu structure” on page 22. It is possible to change the text size
in the display, see section “Settings” on page 106.
4 Soft keys
The functions depend on the traffic state and will be shown on the
last line of the display. When you are requested to (see display),
press the required key to access the function. Used for different
choices in the menu structure (menu mode). In idle mode the
functions of the Soft keys can be changed by you. The middle
Soft key is also used to turn Loudspeaking on or off. See sections
“Settings” on page 106, “Display information” on page 14 and
“Menu structure” on page 22.
5 Call key
Switch on. Make call, answer call, end call.
6 Navigation key
Controls the movement of the cursor in the display. In idle mode,
the Navigation key (down) is used for entering the Call list and
the Navigation key (up) is used for entering the message list.
Pressing Navigation key (left) will show the current date in the
display window. When navigating the menu structure, the key is
used for moving up, down, back (left), or next (right).
7 Menu key
Enter/exit the menu mode, see sections “Display information” on
page 14 and “Menu structure” on page 22. Also used to manually
lock/unlock the keypad, see section “Lock the keypad” on
page 115.
8 Keypad
Enter numbers and writing texts, see section “Enter names and
numbers” on page 52. Keys 0-9 can be programmed as Hot
keys, see section “Hot keys and Soft keys” on page 107.
9 Microphone
10 Mute key
Turn off/on audible signals in idle mode, silencing the ring signal
at an incoming call, and also to turn the microphone on/off during
a call.