Aastra DT412, DT422, DT432 User Guide
DT412/DT422/DT432
Cordless Telephones for Aastra MX-ONE™ and Aastra MD110
User Guide
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© Aastra Telecom Sweden AB 2008. All rights reserved.
Table of Contents
Welcome ..........................................................4
Important User Information ...............................6
Description ..................................................... 11
Switching On/Off ............................................29
Free Seating ...................................................31
Incoming Calls ............................................... 32
Outgoing Calls ...............................................37
Phonebook ....................................................50
During Calls ....................................................57
Call Forwarding .............................................. 63
Absence Information ......................................72
Messages ......................................................75
Group Features ..............................................85
Other Useful Features .....................................87
Alarm .............................................................91
Modes ...........................................................94
Services ......................................................... 96
Settings ..........................................................99
Audible Adjustments ....................................112
Installation ....................................................116
Reference ....................................................123
Troubleshooting ............................................127
Glossary .......................................................129
Index ............................................................ 130
Table of Contents
3DT412/DT422/DT432
Welcome
Welcome
Welcome to the User Guide for the Aastra DT412, DT422 and
DT432 cordless phones. This guide describes the available
features of the telephones when they are connected to Aastra
MD110 or Aastra MX-ONE™.
The functions and features available with these telephones are
designed for easy use in all different telephone handling situations.
Depending on the version and configuration of the exchange that
your telephone is connected to, some of the functions and features
that are described in this user guide may not be available. There
may also be some differences in the way your telephone is
programmed. Please consult your system administrator if you need
further information.
Some markets use differing codes for some features. In this guide
they are described using the most common code.
The latest version of the user guide can be downloaded from:
http://www.aastra.com
DT412/DT422/DT4324
Welcome
Copyright
All rights reserved. No parts of this publication may be reproduced,
stored in retrieval systems, or transmitted in any form or by any
means, electronic, mechanical, photocopying, recording or
otherwise, without prior written permission of the publisher except
in accordance with the following terms.
If this publication is made available on Aastra´s homepage, Aastra
gives its consent to downloading and printing copies of the content
provided in this file only for private use and not for redistribution. No
parts of this publication may be subject to alteration, modification or
commercial use. Aastra will not be liable for any damages arising from
use of an illegal modified or altered publication.
Warranty
AASTRA MAKES NO WARRANTY OF ANY KIND WITH REGARD
TO THIS MATERIAL, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
FOR A PARTICULAR PURPOSE. Aastra shall not be liable for
errors contained herein nor for incidental or consequential
damages in connection with the furnishing, performance or use of
this material.
Declaration of Conformity
Hereby, Aastra Telecom Sweden AB, Box 42214,
SE-126 17 Stockholm, declares that this telephone is in
conformity with the essential requirements and other relevant
provisions of the R&TTE directive 1999/5/EC.
Details to be found at: http://www.aastra.com/sdoc
5DT412/DT422/DT432
Important User Information
Important User Information
Safety instructions
Save these instructions.
Read these safety instructions before use!
Recommendations
• Always keep and handle your products with care
and keep them in a clean and dust-free place.
Proper use and care will prolong the products life.
Use a soft absorbent tissue or cloth to remove
dust, dirt or moisture.
• Always ensure that the phone, battery and
charger are used and operated in the
environment for which they are designed.
• Operate the phone in temperatures between 0°C
to +40°C (32°F to 104°F).
• Do not exp ose your products to liquid,
moisture, humidity, solvents, strong
sunlight, harsh environments or
extreme temperatures, never above
+60°C (+140°F), unless the product
has been specifically designed and
officially approved for such environments.
• Exposure to heat may cause batteries
to leak, overheat or explode, resulting
in fire, burns or other injuries.
• Do not put the product in the
microwave oven: This may cause
damage to either the oven or the product.
• Do not attempt to disassemble or alter
any part of the phone, the charger(s)
or the battery-pack. Disassembly or
alteration may result in electrical
shock or irreversible damage to the
equipment.
personnel or an authorized Aastra partner should
conduct internal inspections, alterations and
repairs.
Only a qualified service
• Do not expose your product to open flames or lit
tobacco products.
• Do not drop, throw or bend your products. This
may cause malfunction or electric shock.
• Do not paint your product.
• Do not use your product in an area where a
potentially explosive atmosphere exists, unless
the product has been specifically designed and
officially approved for such environments.
• To avoid hearing impairment, accept the call
before holding your product (or portable
handsfree device) to your ear.
Disposal of the product
• Your product should not be placed in
municipal waste. Please check local
regulations for disposal of electronic
products.
DT412/DT422/DT4326
Important User Information
Power supply
• Connect the AC power adapter of the charging
unit only to the designated power sources as
marked on the charger.
• Make sure the cord is positioned so that it will not
be subjected to damage or stress.
• To reduce risk of electrical shock, unplug the
chargers from any power source before
attempting to clean or move it.
• The AC power adapters must not be used
outdoors or in damp areas.
• Never modify the cord or plug. If the plug will not
fit into the outlet, have a proper outlet installed by
a qualified electrician.
• Limit the distance between the mains socket and
the cordless phone when charging for easy
accessibility.
• As an energy saving measure, disconnect the
charger from the main socket after charging.
• When unplugging the mains adapter from the
power outlet, make sure that your hands are dry
and ensure that you hold the solid portion of the
mains adapter.
• Do not pull on cables.
Charging and batteries
Please read carefully the following
important precautions before the
first time use of the batteries. Make
sure to understand and observe all
cautionary instructions stated, so as
to avoid any possible safety hazards
that are caused by any misuse, misapplication
or damage to batteries.
•Only use batteries, mains adapters or desk and
rack chargers which have been specifically
designed for use with your product.
• Use of power sources not explicitly
recommended may lead to overheating, reduced
battery performance, distortion of the equipment
and fire or other damages.
• Cordless phones are equipped with Nickel Metal
Hydride (NiMH) batteries or Lithium Ion Lion
batteries. In a complex infrastructure, the talkand standby time may differ, due to the
consequence of the increase in signaling.
• The battery must always be completely charged
(minimal 4 hours) before first time use.
• The battery in your product is designed to
withstand many charge cycles.
• Use only the recommended charging equipment.
• Improper charging can cause heat damage or
even high pressure rupture.
• Observe proper charging polarity.
• Do not solder lead wires directly onto the battery.
• Do not allow water to come into contact with the
battery.
• The initial charging of a NiMH battery will cause
the battery to become warm. This is a normal
effect of charging NiMH batteries.
• The bat teries are replaceable, however it is not the
intention to do this frequently.
• Only charge the batteries when placed in the
phone.
• Use only the specified battery-packs for your
product.
• Never heat or dispose of the battery into a fire,
which, or else, may cause leakage, burst or fire.
• Remove the carrying case from the product while
in charger.
• Do not cover the product while being charged. Do
not charge the phone in a closed cabinet or
drawer. The charging of the battery is a chemical
process and causes the battery to become warm
during charging. Make sure the environment in
which the phone is charged, is well vented.
• The cordless phone can be charged either when
switched on or off.
• Do not connect the battery's positive and
negative leads altogether in any circumstances.
• Do not strike or drop the battery. It may cause
damage to the battery.
• Do not charge the battery below +5°C
(+41°F). Be sure to charge the battery
between +5°C and +45°C (+41°F and
113°F). Charging beyond these
conditions may impair the battery
performance and shorten the life
cycle.
• Do not use battery packs from different types,
brands or of different capacities.
• The battery is to be stored in a dry cool place, with
the ambient temperature of approx. +25°C
(+77°F) for best performance.
• The battery continues to discharge a minimal
portion of its power, even if the product is
switched off or the battery is removed.
• Dispose the battery in accordance with all local
regulations, applicable in your country.
7DT412/DT422/DT432
Important User Information
Warnings
Smoke or fumes
• Stop operating the products and turn
off immediately in case of smoke or
fumes. Unplug the mains adapter
and remove the batteries from the phone
immediately. Continued operation may result in
fire or electrical shock.
LCD
• If the liquid crystal display breaks, avoid injury by
not allowing the liquid crystal to come into contact
with eyes, skin or mouth. Prevent the liquid crystal
from leaking out of the broken glass.
Preventing malfunction
• Never place the equipment in close proximity of
electric motors, welding equipment or other
devices generating strong (electro) magnetic
fields. Exposure to strong (electro) magnetic fields
may cause malfunction and corrupt the
communication.
• Moving the equipment rapidly between warm and
cold temperatures may cause condensation
(water droplets) to form on its inter nal and external
surfaces. Water droplets may cause malfunction
of the equipment and corrupt or end
communication or damage the equipment. When
condensation is noticed, stop using the
equipment. Switch off the phone, remove the
battery and unplug the mains adapter from the
power outlet. Wait until the moisture evaporates
from the equipment before putting it in operation
again.
• Avoid accidental drop of the phone. Use the clip,
security clip or carrying case specified for carrying
purposes of the phone.
• Avoid squeezing the phone between furniture and
your body when carrying the phone in your
pocket or attached to clothing.
DT412/DT422/DT4328
Important User Information
SIM card
Your phone has a removable SIM card (Subscriber Identity Module)
to store your settings. This means that you can move your SIM
card from one phone to another and keep all your settings.
Safety information
The DT412, DT422 and DT432 phones are IP64 classified, which
means that they are robust, dust- and waterproof, designed for
people working in tough environments.
Intrinsic safety (DT432)
The DT432 phone is approved according to the ATEX directive to
be used in potentially explosive gas and dust environments.
Compliance with the Essential Health and Safety Requirements,
with the exception of those listed in the schedule to this certificate,
has been assured by compliance with the following documents:
EN 50014:1997 plus amendments A1 and A2
EN 50020:2002
IEC 61241-0:2004 plus Corrigendum 1
IEC 61241-11:2005
IEC 60529:1989
The classification and marking on the product is “II 2G EEx ib IIC
T4” for gas and “II 3D Ex ibD 22 IP64 T50°C” for dust.
9DT412/DT422/DT432
Important User Information
Preparing for use
Before using your phone for the first time you have to charge and
connect the battery, see section “Installation” on page 116.
Note: Place the phone in the charger and charge it for at
least one hour before using it the first time.
Cleaning
Clean the phone only with a soft, water dampened cloth. Using
soap or any other cleaning materials may discolor or damage the
phone. Clean the battery contacts using ethanol or isopropyl
alcohol.
DT412/DT422/DT43210
Description
2
1
3
4
5
6
7
9
10
11
12
13
8
12
14
Description
1Lamp
A flashing lamp indicates an incoming call or a message waiting.
11DT412/DT422/DT432
Description
2Volume Up/Down
Off-hook: raise/lower speaker volume, see section “Audible
Adjustments” on page 112. 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 99.
4Soft 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 99, “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 108.
8Keypad
Enter numbers and writing texts, see section “Enter names and
numbers” on page 51. Keys 0-9 can be programmed as Hot keys,
see section “Hot keys and Soft keys” on page 100.
9Microphone
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.
DT412/DT422/DT43212
11 Alarm key (DT422 and DT432 only)
Sending alarms and testing the Alarm function. See section “Alarm”
on page 91.
12 Loudspeakers
One loudspeaker for ring signal and one for Loudspeaking. See
section “Handsfree” on page 57.
Please note: The phone may retain small magnetic
articles around the earpiece region.
13 Charging connector
See section “Installation” on page 116.
14 Headset connector
See section “Headset” on page 125.
Description
13DT412/DT422/DT432
Description
System A
S Evans 2174
13:05
3 5
Info Doctor Jobs
Display information
The display gives you visual feedback on all actions that you
perform, and also textual warnings. In idle mode the upper row is
used for icons and the clock. The next three rows are information
rows (20 possible characters in each row), showing system
information, names and numbers that you edit or dial, your owner
ID etc. The third information row is used for showing the status of
the phone (current mode). Examples of status information are;
Muted, In charger
empty.
Note: It is possible to change the owner ID and the text size
in the display, see section “Settings” on page 99.
The lower row displays the Soft key field. In idle mode it shows the
user defined names of the three Soft keys beneath the display. In
menu mode where the Soft keys are used for different choices, it
gives you the function of each Soft key. Examples of functions are;
Back, Option, Save
see section “Hot keys and Soft keys” on page 100.
Note: The information displayed varies depending on the
version and configuration of the exchange, and whether
you use a DECT or an IP DECT phone. Consult your system
administrator to find out which type of phone you have.
etc. When there is no status to show, the row is
etc. How to define the Soft keys in idle mode,
The display:
DT412/DT422/DT43214
Description
System A
Smith 4321
13:05
4321 >
4444
13:05
The following display examples show the different states of your
phone:
Note: If a name is available it is displayed instead of or
together with the number.
Idle phone
Depending on the state and setting of your phone, different
information can be shown.
Normal:
“
System A
is your name (if available) and extension number.
” is the default name of your network. On the second row
Note: If the name is long, the number is not displayed.
Follow-me activated:
The display shows your own extension number 4321 diverted to
extension number 4444.
15DT412/DT422/DT432
Description
Calling
3333
13:05
R
3333
13:05
R
4444
>3333
13:05
R
4444
13:05
R
Outgoing call
Normal outgoing call:
When you make an outgoing call both the traffic state and the
dialed number or name are displayed:
When the outgoing call is answered:
Diverted call:
If the dialed number is diverted, the diversion information is shown.
For example, the display shows the dialed number 3333 (Smith)
diverted to 4444 (Brown):
When the diverted call is answered, only the number of the
answering position is displayed:
DT412/DT422/DT43216
Description
3333
13:05
4321
>3333
13:05
Incoming call
Normal incoming call:
If available, the number or the name of the caller is displayed.
Diverted call:
A diversion indicator before the number or name informs that the
call is diverted to your phone. For example, the display shows that
number 3333 (Smith) was dialed, but the call was diverted to you:
When you have answered the call, the display shows only the
caller's number.
17DT412/DT422/DT432
Description
3
System connection messages
System A System indication
The phone is in contact with System A. It is also possible for the
system to be named something else, e.g. MD110.
No system Out of coverage
The phone is not in contact with any system. Please ask your
system administrator to log on the phone.
Note: When re-entering the coverage area it can take a
couple of minutes before the phone automatically has
registered into the system.
It is also possible to get an out of coverage warning signal,
contact your system administrator if you require this.
No access Access indication
Your phone has contact with a system, calling is not allowed.
Display icons
Call / Off-hook
Appears when your phone is off-hook and flashes during ringing.
Audio signal off
Shown when all alert signals, including ring signal, message tone,
key beep etc. are turned off. High priority messages will however
override this setting. See section “Audible Adjustments” on
page 112.
Battery
Always shown in the display in idle mode. When the level is low it is
time to charge the battery. See section “Installation” on page 116.
Loudspeaking (handsfree)
Shown when the loudspeaker is activated and the phone is in
Loudspeaking operation (handsfree). See section “During Calls” on
page 57.
New message
Appears when a new message is received. The number on the
right side of the icon shows the total number of unread messages.
The symbol will remain until the message is marked as read. See
section “Messages” on page 75.
Note: For voice messages the New message icon is only
an indication of received voice messages, the number does
not reflect the actual number of unread messages.
DT412/DT422/DT43218
Description
5
Not answered call
Added to not answered calls in the Call list. The number on the
right side of the icon shows the total number of missed calls.
Key
Indicates that your keypad is locked. See section “Automatic key
lock” on page 108.
Padlock
Indicates that the phone has been locked, and has to be unlocked
with a code before it can be used. See section “Phone lock” on
page 105.
Headset
Indicates that a headset is connected to the phone. See section
“Headset” on page 125.
No-movement Alarm on (DT422 and DT432 only)
Indicates that the No-movement Alarm is activated. See section
“Alarm” on page 91.
Man-down Alarm on (DT422 and DT432 only)
Indicates that the Man-down Alarm is activated. See section
“Alarm” on page 91.
ABC Upper case text input
Indicates that you can type upper case letters and numbers in text
input mode. See section “Enter names and numbers” on page 51.
abc Lower case text input
Indicates that you can type lower case letters and numbers in text
input mode. See section “Enter names and numbers” on page 51.
123 Number input
Indicates that you can type numbers in text input mode. See
section “Enter names and numbers” on page 51.
Incoming call
Added in front of incoming calls in the Call list.
Outgoing call
Added in front of outgoing calls in the Call list.
Unread message
Added in front of not read messages in the message list. See
section “Messages” on page 75.
Read message
Added in front of read messages in the message list. See section
“Messages” on page 75.
19DT412/DT422/DT432
Description
Interactive message
Added in front of an incoming interactive message in the message
list. See section “Messages” on page 75.
Read interactive message
Added in front of read interactive messages in the message list.
See section “Messages” on page 75.
Add contact
Appears on a Soft key when a phone number is marked in the Call
list. It indicates that it is possible to add the phone number to the
local Phonebook. See section “Phonebook” on page 50.
Contacts
Displayed when it is possible to get a phone number from the local
Phonebook, for example to add it to a function. See section
“Phonebook” on page 50.
> Diversion indicator
When displayed before a name or number it indicates that the
phone is diverted to another extension.
DT412/DT422/DT43220
Description
Menu tabs
The following tabs are displayed when you press the Menu key:
Messages
Here you can find the message list. See section “Messages” on
page 75.
Contacts
Here you can find the local Phonebook, the central Phonebook and
the Call list. See sections “Phonebook” on page 50 and “Dial
number from the Call list” on page 40.
Modes
Here you can select between modes, and change or edit modes.
See section “Modes” on page 94.
Services
Here you can select, add, delete, or change a Service function. See
section “Services” on page 96.
Settings
Here you can handle your phone settings. See section “Settings”
on page 99.
To navigate the menus, see section “Menu structure” on page 22.
Additional display features
Depending on which network you are connected to, additional
display features are available. Ask your system administrator if you
require additional display features.
21DT412/DT422/DT432
Description
Menu structure
The available phone and network functions can be accessed via
the menus.
ç Press the Menu key to enter or exit the menus.
The last used tab is marked, or if the phone has been restarted, the
menu tab Contacts.
Use the Navigation key (left/right) to choose tab and press the
Navigation key (down) to open it; a heading is shown and the first
alternative is marked. Use the Navigation key (up/down) to step in
the alternatives and select one by pressing Navigation key (right).
Notes:
Since the phone can be used in several networks, some
functions might not be supported in your network.
A parameter setting in the SIM card determines if changes
that are made from the menu is saved on the SIM card. If
changes are not saved on the SIM card, they will be
discarded when the phone is restarted.
DT412/DT422/DT43222
Messages tab
Messages list > Message 1 >
Message 2 >
.
.
Message 20 >
Message 1 (time/date)
Send SMS > SMS Address > SMS
Local phonebook >
Central phonebook
Call list >
Entry 1 >
Entry 2 >
.
.
Entry 100 >
Name: .....
Number: .....
Call number 1
Call number 2
.
.
.
.
.
Call number 20
SMS tab
Description
Contacts tab
23DT412/DT422/DT432
Description
Normal >
In charger >
Mode 2 >
Mode 3 >
Mode 4 >
Mode 5 >
Mode 6 >
Mode 7 >
Mode 8 >
Mode 9 >
Switch off
Volume >
Ring signals >
Vibrator (on/off)
Key beep (on/off)
Alarm settings* >
Absent (on/off)
Answer >
Soft key**
Name: ...
* Only available for the DT422 and DT432 phones.
No-movement (on/off)
Man down (on/off)
Internal call: >
External call: >
Callback: >
Beep,
Low,
Medium,
High,
Mixed
(Level 1,2..5, Silent)
Ordinary
Auto
Loud
Auto loud
Service 1 >
Service 2 >
.
.
Service 10 >
Name: ....
Function:
Data send
Data with prefix
Phone call
SMS
Modes tab
** See section “Settings tab” on page 25 for more information.
Services tab
DT412/DT422/DT43224
Settings tab
Alert signals >
Alarm settings*>
Soft key >
Hot key >
General >
System >
Volume: >
Ring signals >
Vibrator (on/off)
Key beep (on/off)
(Level 1,2..5, Silent)
Internal call: >
External call: >
Callback: >
Beep,
Low,
Medium,
High,
Mixed
No-movement (on/off)
Man down (on/off)
Left: >
Middle: >
Right: >
Name: ....
Function: >
0, 1, 2.....9 >
Data send
Data with prefix
Phone call
Short-cut >
SMS
Change mode
Not used
Absent
Local phonebook
Central phonebook
Services
Switch off
No-movement*
Man-down*
Edit alarm data*
Change system
Demo Mess 1
Demo Mess 2
RSSI
Language >
Text size** >
Phone lock >
Clock (on/off) >
Auto key lock (on/off)
Quick answer (on/off)
New message rotated (on/off)
Owner ID
Display contrast
(English, etc)
Auto setting
Manual setting
Small
Medium
Select system >
Register >
Location test* >
Information >
IPDI / IPEI / SW version / AP SW version
System A.....D
Auto, System A.....D
*Only available for the
DT422 and DT432
phones.
** Only available for the
DT412 and DT422
phones.
Activate test
Lock phone
Set lock code
Description
25DT412/DT422/DT432
Description
Customizing the menus
Your system administrator can customize the menus by hiding
some of the functions that are available. Which functions that
should be hidden are decided with settings in the SIM card. The
following functions can be hidden:
• Deletion of messages - The options
are hidden.
• Administration of local Phonebook - It is not possible to add
new entries, or edit and delete existing entries.
• Editing modes - The settings for the modes cannot be altered.
• Changing modes - The option
possible to change modes from the menu.
• Switch off handset - It is not possible to switch off the phone
from the Modes menu.
• Administration of services - It is not possible to add new
services, or edit and delete existing services.
• Changing alert signals - The
menu is hidden.
• Changing alarm settings - The
the menu is hidden.
• Administration of Soft keys - The
menu is hidden.
• Administration of Hot keys - The
menu is hidden.
• Edit of Hot keys - The option
see the settings for the Hot keys.
• Changing general settings - The
in the menu is hidden.
• Handling Phone Lock - The
menu is hidden.
Delete
and
Select
is hidden, i.e. it is not
Alert signals
alternative in the
Alarm settings
Soft key
Hot key
Edit
is hidden. It is possible to
General
Phone lock
alternative in the
alternative in the
settings alternative
alternative in the
Delete all
alternative in
DT412/DT422/DT43226
Description
• Changing system* - The
menu is hidden.
• Register system* - The
hidden.
• Delete system - The option
• View information* - The
is hidden.
• Location test* - The
hidden.
• Central Phonebook address - When an address to the
central Phonebook is specified, the alternative
Phonebook
list. At delivery the address is set to 999999.
* If all these alternatives are hidden, the
menu will be hidden.
Each mode in the menu can be hidden individually. This makes it
possible to remove modes that are not used from the menu. Note
that it is still possible to change to the hidden modes with help of
Soft and Hot keys.
will appear in the Contacts menu and the short-cuts
Select system
Register
Delete
Information
Location Test
alternative in the
alternative in the menu is
is hidden.
alternative in the menu
alternative in the menu is
Central
System
alternative in the
27DT412/DT422/DT432
Description
Dial tone
Special dial tone
Ringing tone or queue tone
Busy tone
Congestion tone
Number unobtainable tone
To ne s
The following different tones are sent from the exchange to your
phone.
Tone characteristics
The tones shown in this section are the most used tones
worldwide. Many markets use a differing tone for one or more
situations.
Call waiting tone
Intrusion tone
Conference tone every 15 seconds (to all parties)
Verification tone
Warning tone, expensive route
Ring signals
You can change the ring signals, see section “Ring signals” on
page 114.
DT412/DT422/DT43228
Switching On/Off
Switch on?
No Yes
Switch on
Switching On/Off
æ Press and hold until the display lights up.
If the phone does not switch on or the Battery icon is displayed,
the battery is low. Charge the battery.
The display shows:
Yes Press within two seconds to confirm (see display).
Now you can use your phone.
Notes:
If the message
answer calls.
Depending on system programming, your phone can be
locked. To unlock the phone, see section “Phone lock” on
page 105.
No System
is displayed you cannot make or
29DT412/DT422/DT432
Switching On/Off
å
Switch off
Notes:
During calls, you cannot switch off your phone.
It is recommended that you program the Switch off function
as a Hot key, see section “Hot keys and Soft keys” on
page 100. If you do not program a Hot key, you can use the
menus, see section “Modes” on page 94.
If you have programmed a Hot key:
Press and hold the Hot key.
ã Yes Ok Press to confirm (see display).
Now your phone is switched off.
DT412/DT422/DT43230
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