User guide

9BusinessPhone – Cordless DT400/DT410/DT420/DT430
Description
3C-key
One menu back. Cancel a menu option. Delete latest entered digit.
Backspace when editing text.
4 Scroll key
Scroll up/down through menus. “Arrow up”: view messages (not
available for DT400). “Arrow down”: 10 last dialled numbers.
5Call key
Switch on. Make call, answer call, end call.
6 Loudspeaker key
Hands-free mode: turn loudspeaker on/off, mute/turn on micro at
the same time.
7
*
/ Pause
Insert a dial tone pause.
8Alarm button
DT420 and DT430 only. For sending alarms and test alarms.
9 Earpiece
Please note: The handset may retain small magnetic
articles around the earpiece region.
10 Mute button
Idle state: turn off/on ring signal and message tone (not available
for DT400). During calls: turn the microphone on/off.
11 Display (3 rows)
Display at rest. It shows the owner ID/name and the system. See
section “Display info” on page 10.
12 OK key
Enter menu mode. Confirm settings. Accept messages
(not available for DT400).
13 R-key
Put call on hold (inquiry), take call off hold, call forwarding.
See section “During Calls” on page 19.
14 Keypad
15
#
/ Space
Space when editing text.
16 Microphone
17 Accessory connectors
See section “Installation” on page 88.