Gigaset A420/A420A
Please note
The handset at a glance
New messages in the calls list/
answering machine list/network
mailbox list are indicated in the display by the message New messages, the left display key flashes (if
set ¢ page 9).
1 Charge status of the 
2 Answering machine icon
(A420A only)
3 Signal strength
4 Display keys
5 End call key and On/Off key
6 Talk key/Handsfree key
7 Control key (p)
ª Audio settings
INT Internal call
â Directory
| Muting during a call
8 Key 1 
Open answering machine
(A420A only)/network mailbox
9 Star key 
Ringers on/off (press and hold);
with an open connection:
switch from pulse dialling to
tone dialling (press briefly)
10 Key 0/recall key
Consultation call (flash): press
and hold
11 Hash key
Keypad lock on/off (press and
hold); toggles between upper/ 10
lower case and digits; inserts a 11
dialling pause (press and hold) 12
12 Microphone
23.04. 10:53
‘ Menu
Handset display keys:
Pressing a key launches the function
that appears above that key in the display.
Display Function when pressed
’ Open calls list (¢ page 9).
§Menu§ Open main/submenu
(see menu overview
¢ page 23).
Go back one menu level.
Scroll up/down or adjust volume with q.
Move cursor to left/right
with r.
Backspace deletes one
character at a time.
Confirm menu function or
save entry.
The base station at a glance
Basis A420A
1 Registration/Paging key: 
Search for handsets (press briefly, paging ¢ page 13).
Register handsets (press and hold ¢ page 13).
2 Volume keys: (– = quieter; + = louder)
During message playback: adjust the speaking volume.
While the phone is ringing: adjust the ringer melody volume.
3 Play/Stop key:
Switch answering machine on and off (press and hold);
play back new messages from answering machine (press briefly); 
during message playback: cancel playback (press briefly).
Lights up: answering machine is activated. 
Flashes: at least one new message is present or message is played
back or being recorded.
Flashes very quickly: memory is full.
Basis A420
During message playback:
4 Skip to the start of the current message (press once) or go to the previous message (press twice).
5 Go to the next message.
6 Delete current message.
Gigaset service contact numbers:
For personal advice on our range of products and for repairs or guarantee/warranty claims call:
Service Centre UK:
08453 6708 12 (local call cost charge)
Please have your proof of purchase ready when calling.
During a call, the transmission power is automatically adjusted to the distance between handset and base station,
the smaller the distance, the lower the transmission power (radiation). In idle status the transmission power of the
handset is switched off. Only the base station ensures contact with the handset using low radio signals.
Your phone offers you the opportunity to further reduce the transmission power:
1) Reducing transmission power (eco mode)
If the setting Max. Range is switched to off (menu tree ¢ page 24), the transmission power in standby mode and
during a call is reduced up to 80% at half range.
2) Deactivating transmission power (eco mode+)
With the setting No Radiation (menu tree ¢ page 24), you turn off the transmission power of the base station in
standby mode completely. Please note:
◆ All registered handsets must support this feature.
◆ For quick connection of incoming calls the handset repeatedly switches to reception mode for short periods.
This increases energy consumption and therefore reduces the standby and talk times.
Safety precautions
Read the safety precautions and the user guide before use.
Explain their content and the potential hazards associated with using the device to your children.
Use only the power adapter indicated on the device.
Use only rechargeable batteries that correspond to the specification (see "Technical Data"). Never use a conventional (non-rechargeable) battery or other battery types as this could result in significant health risks and
personal injury. Rechargeable batteries, which are noticeably damaged, must be replaced.
Using your telephone may affect nearby medical equipment. Be aware of the technical conditions in your particular environment, e.g., doctor's surgery.
If you use a medical device (e.g., a pacemaker), please contact the device manufacturer. They will be able to
advise you regarding the susceptibility of the device to external sources of high frequency energy (for the specifications of your Gigaset product see "Technical Data").
Do not hold the rear of the handset to your ear when it is ringing or when speaker mode is activated. Otherwise
you risk serious and permanent damage to your hearing.
Your Gigaset is compatible with the majority of digital hearing aids on the market. However, perfect function
with all hearing aids cannot be guaranteed.
The phone may cause interference in analogue hearing aids (humming or whistling) or cause them to overload.
If you require assistance, please contact the hearing aid supplier.
The devices are not splashproof. For this reason do not install them in a damp environment such as bathrooms
or shower rooms.
Do not use the devices in environments with a potential explosion hazard (e.g., paint shops).
If you give your Gigaset to a third party, make sure you also give them the user guide.
Remove faulty devices from use or have them repaired by our Service team, as these could interfere with other
wireless services.
Please note
◆ The device cannot be used in the event of a power failure. It is also not possible to transmit emergency calls.
◆ Emergency numbers cannot be dialled if the keypad lock is activated!
First steps
Check the package contents
Base station and handset package: One Gigaset handset, one Gigaset A420/A420A base station, one mains adapter,
one phone cord, two batteries, one battery cover, one user guide.
Handset and charging cradle package: One Gigaset handset, one charging cradle with mains adapter, two batteries,
one battery cover, one user guide.
If you have purchased a model with multiple handsets, the package should contain two batteries, a battery cover and
a charging cradle with mains adapter for each additional handset.
Setting up the base station and charging cradle (if included)
The base station and charging cradle are designed for use in enclosed dry rooms with a temperature range of +5 °C to
+45 °C.
¤ Set up the base station at a central location on a flat, non-slip surface in your house or apartment. You can also
mount the base station and charging cradle on the wall.
Please note
Pay attention to the range of the base station. This is up to 300 m in unobstructed outdoor areas and up to 50 m
inside buildings.
The phone's feet do not usually leave any marks on surfaces. However, due to the multitude of different varnishes and
polishes used on today's furnishings, the occurrence of marks on the surfaces cannot be completely ruled out.
Care: Wipe down the base station, the charging cradle and the handset with a damp cloth (no solvents) or an antistatic
cloth. Never use a dry cloth. This can cause static.
Please note:
◆ Never expose the telephone to the influence of heat sources, direct sunlight or other electrical devices.
◆ Protect your Gigaset from moisture, dust, corrosive liquids and vapours.
Connecting the base station
¤ First connect the mains adapter 1.
¤ Then connect the telephone jack 2 and insert the
cables into the cable ducts.
Please note:
◆ The mains adapter must always be connected, as the
phone will not operate without mains connection.
◆ Only use the mains adapter and phone cord supplied.
Pin connections on telephone cables can vary.
◆ The answering machine (A420A only) is ready for use
approx. 30 seconds after the base station has been connected.
Connecting the charging cradle (if included)
¤ Connect the flat plug from the power
supply 1.
¤ Plug the mains adapter into the plug
socket 2.
If you need to disconnect the plug from the
charging cradle, press the release button 3
and disconnect the plug 4.
Setting up the handset for use
The display is protected by a plastic film. Please remove the protective film!
Inserting the batteries and closing the battery cover
Use only the rechargeable batteries recommended by Gigaset Communications GmbH (¢ page 18), i.e., never use
conventional (non-rechargeable) batteries as this could result in significant health risks and personal injury. For
example, the batteries could explode. The phone could also malfunction or be damaged as a result of using batteries that are not of the recommended type.
¤ Insert the batteries
with the polarity in the
correct direction.
The polarity is indicated in
the battery compartment.
¤ Insert the battery cover from
the top.
¤ Then slide the cover upwards
until it clicks into place.
To open the battery cover, for instance to
replace the batteries:
¤ Reach into the notch at the top of the
cover and slide the cover downwards.
Initial charging and discharging of the batteries
The correct charge status can only be displayed if the batteries are first fully charged and discharged.
¤ Charge the handset in the base station/charging cradle
for 6 hours.
Please note
The handset must only be placed in the designated
Gigaset base station or charging cradle.
¤ After charging, remove the handset from the base station/charging cradle and only replace it when the batteries are fully discharged.
Please note
◆ Base station and handset package: The handset is pre-registered with the base station. If you have purchased
a model with multiple handsets, all handsets will already be registered with the base station. You do not need
to register the handset again. 
However, if a handset is not registered with the base station (Register HS or Put into base is displayed), please
register the handset manually (¢ page 13).
Handset and charging cradle package: please register the handset manually (¢ page 13).
After the first battery charge and discharge, you may place your handset in the charger after every call.
Always repeat the charging and discharging procedure if you remove the batteries from the handset and reinsert them.
The batteries may warm up during charging. This is not dangerous.
After a while, the charge capacity of the batteries will decrease for technical reasons.
Changing the display language
Change the display language if you do not understand the language currently set:
q (select language) ¤ §OK§ (‰ = current language)
¤ Press and hold the end call key a to return to idle status.
§Menu§ ¤ 421 (press the keys one after the other) ¤
Setting the date and time
Set the date and time so that the correct date and time can be assigned to incoming calls, and so that the alarm can be
§Menu§ ¤ q Settings ¤ §OK§ ¤ Date/Time ¤ §OK§ ¤ Date ¤ ~ (enter the day, month and year in 6-digit format)
¤ §OK§ ¤ Time ¤ ~ (enter hours and minutes in 4-digit format) ¤ §OK§ (display message: Saved)
¤ a (press and hold to return to idle status).
You can move the position of an entry to the left or right by pressing the control key left or right r.
Please note
If your phone receives the date and time during calling line display (e.g., via your network provider, a router or
PABXs), you can specify whether this data should be copied to your phone:
¤ Press the key sequence: §Menu§ ¤ P#Q5#MI
973 SET: [0]
The following is displayed; the current setting flashes:
¤ Press one of the following keys to specify, when this data should be copied to your phone:
or 1
Once, in case the date/time is not set on your phone 
or 2
Your selection is displayed (e.g., 2):
973 SET: [2]
¤ Press the display key §OK§.
Display in idle status
Once the phone is registered and the time set, the idle status is shown as in this example.
Screen display
◆ Reception between the base station and the handset:
- Good to poor: Ð ¨ § ¦
- No reception: ¥
◆ Activating the answering machine (A420A only):
- ± Your answering machine is activated.
◆ Battery charge status:
- U Charged over 66%
- V Charged between 34% and 66%
- e Charged between 11% and 33%
- = Charged less than 11%
- = Flashes: batteries almost empty (less than 10 minutes talktime)
= e V U Batteries are charging
If No Radiation mode (¢ page 24) is activated, the ½ icon is displayed in the top left.
23.04. 10:53
Activating/deactivating the handset
Press and hold the a key to activate or deactivate the handset. If you place a deactivated handset in the base station
or charging cradle, it will automatically activate after approx. 30 seconds.
Your phone is now ready for use.
If you have any questions about using your phone, please read the tips on troubleshooting ("Questions and answers",
¢ page 19) or contact our Customer Care team ¢ page 20.
Menu guidance
Your telephone's functions are accessed via a menu consisting of several levels (menu overview ¢ page 23).
Main menu (first menu level)
¤ When the handset is in idle status, press the display key §Menu§ or right on the control key v to open the main menu.
The functions in the main menu are shown by means of an icon and the function's name.
Selecting a function:
¤ You can scroll between functions using the control key q. The function is shown in the display.
¤ Press the display key §OK§ or the right control key vto select the displayed function. This opens the corresponding
submenu and the first entry is displayed.
If you press the display key ” or briefly the end call key a, the display returns to idle status.
The functions in the submenu are indicated by name.
Selecting a function:
¤ You can scroll between functions using the control key q. The function is shown in the display.
¤ Press the display key §OK§ to select the displayed function. This opens the corresponding submenu and the first entry
is displayed.
If you press the display key ” or briefly the end call key a, the display returns to the previous menu level or you cancel
the operation.
Any settings you have not confirmed by pressing the display key §OK§ are lost.
Reverting to idle status
From any point in the menu:
¤ Press and hold the end call key a or
¤ Do not press any key: after 2 minutes, the display will automatically revert to idle status.
Making calls
Making external calls and ending calls
External calls are calls using the public telephone network.
~ (Enter the phone number) ¤ c.
The phone number is dialled. (Or you can first press and hold talk key c [dial tone] and then enter the number.) During
the call you can adjust the earpiece volume using t and set the volume with q.
End the call/cancel dialling: Press the end call key a.
You can automatically insert a network provider dialling code before any phone number (¢ page 7).
Accepting a call
The handset indicates an incoming call by ringing and by a display on the screen.
Press the talk key c to accept the call.
When Auto Answer is activated (see menu overview ¢ page 24), simply remove the handset from the base station/
charging cradle.
Calling Line Identification
When you get a call, the caller's number will be displayed on your handset; the caller's name will be displayed if it is
stored in the directory.
1 You have asked your network provider for the caller's number (CLIP) to be displayed on your handset screen.
2 The caller has asked the network provider for his number to be identified (CLI).
External Call appears in the display if you have not requested CLIP, Withheld appears if the caller has withheld CLI, and
Unavailable appears if CLI has not been requested.
Handsfree operation
In handsfree mode, you activate the loudspeaker so that you can hear the caller without having to hold the handset to
your ear. During a call and when listening to the answering machine (Gigaset A420A only) you can activate or deactivate
handsfree mode by pressing the handsfree key d.
During the call in handsfree mode you can adjust the handsfree volume by pressing t and set the volume with q.
You can deactivate your handset's microphone during a call. Press the right control key v to mute the handset. Press
the control key v again to reactivate the microphone.
Automatic network provider preselection
You can store a call-by-call number (preselection number), which is automatically placed in front of numbers when you
dial them. If, for example, you wish to make international calls via special network providers, you can save the relevant
dialling code here.
In the "With Preselect" list, specify the dialling codes or the first digits of the dialling codes that you wish to assign to the
preselection number.
In the "Without Presel." list, enter any exceptions to the "With Preselect" list.
Presel. Number
With Preselect
Without Presel.
All numbers that start with 08, except
for 081 and 084, are dialled with the
preselection number 0999.
Phone number
Dialled number
¤ 07112345678
¤ 0999 08912345678
¤ 08412345678
Enter preselection number via menu (¢ page 24). 
Permanently deactivating preselection: Delete the preselection number with Ü.
Temporarily cancelling preselection:
c(press and hold) ¤ §Menu§ ¤ q Preselect off ¤ §OK§ ¤ ~ (enter number) or s (use number from directory) ¤ The
number is dialled without Preselection.
Using the directory and lists
To open the directory: press control key s.
You can save up to 100 phone numbers (max. 22 digits) with corresponding names (max. 16 characters). 
Enter letters/characters ¢ page 17.
Storing the first number in the directory
s ¤ New Entry? ¤ §OK§ ¤ ~ (enter number) ¤ §OK§ ¤ ~ (enter name) ¤ §OK§
Storing further numbers in the directory
s ¤ §Menu§ ¤ New Entry ¤ §OK§ ¤ ~ (enter number) ¤ §OK§ ¤ ~ (enter name) ¤ §OK§
Selecting a directory entry
Open the directory with s. You have the following options:
◆ Use q to scroll through the entries until the required name is selected.
◆ Enter the first character of the name and scroll to the entry with q, if required.
Dialling with the directory
s ¤ q (select entry) ¤ c
Using other functions
s ¤ q (select entry) ¤ §Menu§
The following functions can be selected with q:
New Entry
Show Number
Save new phone number.
Display the phone number.
Edit Entry
Use Number
Edit selected entry.
Edit the number or open the directory by pressing the control key s to insert a number from the
directory at the current position. Then dial or use other functions with §Menu§.
Delete selected entry.
Send a single entry to another handset (¢ page 8).
Delete all directory entries.
Send the complete list to another handset (¢ page 8).
For shortcuts, assign the current entry to a key.
Delete Entry
Send Entry
Delete List
Send List
Using shortcut keys
You can assign directory entries to the keys 2–9:
s ¤ q (select entry) ¤ §Menu§ ¤ q Shortcut ¤ §OK§
¤ q (select key) ¤ §OK§ or ~ (press the key you want to assign the entry to)
To dial, press and hold the required shortcut key.
Sending the directory to another handset
◆ The sending and receiving handsets must both be registered to the same base station.
◆ The other handset and the base station can send and receive directory entries.
s ¤ q (select entry) ¤ §Menu§ ¤ q Send Entry / Send List ¤ §OK§
¤ q (Select the internal party) ¤ §OK§ or ¤ ~ (enter the internal number of the receiving handset)
Last number redial list
This list contains the ten last dialled numbers.
Dialling from the last number redial list
c (press briefly) ¤ q (select entry) ¤ c
Managing entries in the last number redial list
c (press briefly) ¤ q (select entry) ¤ §Menu§
You can select the following settings:
Copy to Dir.
Edit the number or open the directory by pressing the control key s to insert a number from the
directory at the current position. Then dial or use other functions with §Menu§.
Copy an entry to the directory.
Delete Entry
Delete List
Delete selected entry.
Delete all entries.
Use Number
Calls list/answering machine list/network mailbox list
Press the display key ’ , to open the list overview. If you have new messages, only lists with new messages are displayed. Scroll through the lists by pressing q.
An advisory tone sounds as soon as a new entry appears in the calls list/answering machine list/network mailbox list.
By default the left display key flashes and the message New messages appears on the display. You can change this
behaviour by using the following procedures:
¤ Press the key sequence: §Menu§ ¤ P#Q5#M
The following is displayed:
¤ Press one of the following keys to select the message type:
for missed calls
or M
for messages on the answering machine ( A420A only)/network mailbox
Your selection is displayed (e.g., 5 for missed calls); the current setting flashes:
975 SET: [0]
Press key Q or 1, to set the behaviour for new messages:
The presence of new messages is displayed (default setting).
The presence of new messages is not displayed.
or 1
Your selection is displayed (e.g., 1):
975 SET: [1]
¤ Press the display key §OK§.
Settings will only be changed once a new message has been received.
Please note
When calls are saved in the network mailbox, you will receive a message if the appropriate settings have been made
(depending on your network provider).
Calls list
Prerequisite: CLIP (¢ page 7)
Depending on the type of list set, the calls list contains (¢ page 24):
◆ Answered calls
◆ Missed calls
◆ Calls recorded from the answering machine (A420A only)
Depending on the type of list set, all numbers of the last 25 incoming calls are saved or just the missed calls are saved.
Open the calls list
’ ¤ q CallsList
The calls list is displayed as follows:
Number of new entries + number of old, read entries CallsList 01+02 
Press §OK§ to open the list.
The last incoming call is displayed. If necessary, use q to select another entry.
Using other functions
q (select entry) ¤ §Menu§
The following functions can be selected with q:
Delete Entry
Delete current entry.
Copy to Dir.
Copy an entry to the directory.
Call date and time (if set).
Delete List
New Call: new missed call. Old Call: entry already read.
Warning! All old and new entries will be deleted.
Calling back a caller from the calls list
’ ¤ q CallsList 01+02 ¤ §OK§ ¤ q (select entry) ¤ c
Answering machine list (A420A only) /Network mailbox list
You can use these lists to listen to messages on the answering machine (see "Playing back/deleting messages"
¢ page 11) or network mailbox (¢ page 13).
Operating the answering machine (A420A only)
The answering machine is operated via the handset or via the keys on the base station. Information on operating the
answering machine via the keys on the base station (¢ page 1). The following sections describe operation via the handset.
You can record your own announcement messages using the handset. The pre-recorded announcement is used, if no
personal announcement is available.
If the memory is full, Answer M.full! appears in the display and the answering machine switches itself off automatically.
It activates again automatically when you delete old messages.
The answering machine has already been preset at the factory. Make individual settings using the handset.
How to set a delay time, after which the answering machine is to answer a call, as well as how to set the recording length
and activate call screening during the recording, see menu overview (¢ page 23).
Activating/deactivating the answering machine
§Menu§ ¤ q Answer Machine ¤ §OK§ ¤ q Answ. Mach. ¤ §OK§ ( ‰ = on)
When you switch on the answering machine, the ± icon appears in the display.
Recording your own announcement
§Menu§ ¤ q Answer Machine ¤ §OK§ ¤ q Announcements ¤ §OK§ ¤ Rec announce. ¤ §OK§ ¤ Start recording? ¤ §OK§
You hear the ready tone (short tone). Now speak your announcement (at least 3 sec.). Press §OK§ to confirm or press a
or ” to reject your recording. After recording, the announcement is played back for you to check.
Please note:
Recording ends automatically when the max. recording time of 170 seconds is reached or if there is a break in speaking
of more than 2 seconds.
Playing back or deleting announcements
See menu overview ¢ page 23.
Playing back/deleting messages
There are three ways to start playing back messages on the answering machine.
◆ Start message playback via the Answer Machine menu:
§Menu§ ¤ q Answer Machine ¤ §OK§ ¤ q Play Messages ¤ §OK§
If you have entered a number for the network mailbox you still need to select the answering machine:
¤ q Answ. Mach. ¤ §OK§
◆ Start message playback via the answering machine list:
’ ¤ q Answer M.
The list is displayed as follows:
Number of new messages + number of old, played back messages Answer M.01+02 
Press §OK§ to open the list.
¤ Fast access to the answering machine:
To access the answering machine, simply press and hold the 1 key. The integrated answering machine has already
been preset at the factory. However, if you have set the network mailbox for fast access, you can change this setting
(¢ page 23).
If you have new messages, playback will start with the first new message, otherwise with the first old message.
The loudspeaker on the handset switches on automatically. To switch it off, press the handsfree key d.
Messages consist of
◆ the message header (number/date/time) and
◆ the message body (recorded text).
The header is played back first, then the body. The phone number or the name is displayed.
Stopping and controlling playback
Controlling playback depends on the point in time at which the corresponding key is pressed. 
During message playback:
Pause playback. Press 2 again to resume.
t or 1
During playback of message header: Go to the start of the previous message. Skipping back from
the first message jumps to the last message.
During playback of message body: Go to the start of the current message.
s or I
Go to the start of the next message. Skipping forward from the last message jumps to the first message.
During playback of message header: Skip header.
During playback of message body: Go to the body of the next message. Skipping forward from the
last message jumps to the first message.
Additional functions during message playback
Press the display key §Menu§. Playback stops. 
Select the relevant function using q:
Dial Number
Dial number.
Copy to Dir.
Delete all old
Continue message playback.
Setting volume.
Copy the caller's number to the directory.
Delete all old messages.
Deleting an individual message
During playback: Press key Q or the display key Ü .
New messages can only be deleted during playback of message body.
Deleting all old messages
During playback or when paused:
§Menu§ ¤ q Delete all old ¤ §OK§ (Confirm the security prompt)
Accepting a call from the answering machine
You can accept a call while the answering machine is recording it:
§Menu§ ¤ Accept ¤ §OK§
You can also accept the call by:
◆ Pressing the talk key c
◆ Removing the handset from the base station/charger (if Auto Answer is activated ¢ page 24)
Please note
When Call Screening is activated on the handset and the call can already be heard on the handset, you can only
accept the call via §Menu§ ¤ Accept ¤ §OK§. Pressing the talk key/handsfree key c only activates or deactivates the
handsfree mode.
Recording stops and you can speak to the caller.
Operating when on the move (remote operation)
You can check your answering machine from any other telephone (hotel, pay phone etc.).
◆ You have set a system PIN other than 0000 (¢ page 24).
◆ The phone you are using for remote operation has tone dialling (DTMF) i. e., you hear different tones when you press
the keys.
Calling the answering machine and playing messages
~ (Dial your own number.) ¤ When you hear your announcement, press 9 and enter the system PIN.
The following keys are used for operation:
During the number/date/time announcement: Skip to the start of the previous message.
During the message playback: Skip to the start of the current message.
Stop playback. Press again to resume.
Go to the next message.
Delete current message.
Activating the answering machine
~ (Enter your own number and allow the phone to ring until you hear the message, "Please enter your PIN code.")
¤ ~ Enter system PIN
Your answering machine is activated. It tells you how much memory time is left. The messages are now played back. The
answering machine cannot be deactivated remotely.
Network mailbox
The network mailbox is the answering machine in your provider's telephone network. More information is available from
your provider. You cannot use the network mailbox unless you have requested it from your provider.
In order to use the network mailbox quickly and easily via the network mailbox list (¢ page 9), the menu (¢ page 23)
and to use fast access (¢ page 1), you will need to enter the number in your phone:
§Menu§ ¤ q Answer Machine ¤ §OK§ ¤ q Net Mailbox ¤ ~ (enter number) ¤ §OK§
Locating a handset (paging)
You can locate your handset using the base station.
¤ Briefly press the registration/paging key on the base station (¢ page 1).
All handsets will ring at the same time (paging), even if the ringers are switched off.
Ending paging: Briefly press the registration/paging key on the base station (¢ page 1) or press the talk key c or the
end call key a on the handset.
Registering handsets manually
You can register up to four handsets on your base station. Each additional handset must be registered on the base station in order for it to work properly!
1) On the handset
§Menu§ ¤ q Settings ¤ §OK§ ¤ q Handset ¤ §OK§ ¤ q Register HS ¤ Enter the base station system PIN (default setting: 0000) ¤ §OK§ ¤ Registering is displayed.
2) On the base station
Within 60 seconds, press and hold the registration/paging key on the base station (¢ page 1) for approx. 3 seconds.
(A420A only: There is a tone played if the registration mode is activated.)
Registration takes approx. 1 minute. Once the registration process has been completed successfully, the display briefly
shows HS registered and returns to idle status. Handsets are assigned the lowest available internal number (1-4). If the
internal numbers 1–4 are already assigned to other devices, the number 4 will be overwritten.
De-registering handsets
You can de-register all other registered handsets from each of the registered Gigaset handsets.
§Menu§ ¤ q Settings ¤ §OK§ ¤ q Handset ¤ §OK§ ¤ q De-register HS ¤ q Select the internal party you wish to deregister. The handset you are currently using is indicated by <. ¤ §OK§ ¤ Enter the base station system PIN (default setting:
0000) ¤ §OK§
Using multiple handsets
Making internal calls
Internal calls are free calls to other handsets that are registered to the same base station.
2 handsets are registered
Press the control key u, the other handset is called.
More than 2 handsets are registered
Calling a specific handset
u ¤ ~ (1...4, enter internal number of the handset) or
u ¤ q (Select the internal party) ¤ §OK§ or c ¤ the handset is called.
Calling all handsets (group call)
Press and hold u or u ¤ P or u ¤ q Call all ¤ §OK§ or c ¤ all handsets are called.
When a participant answers you can speak to him. To end the call, press a.
Internal consultation call/connecting a call
You are in conversation with an external participant. Press the control key u and call one or all handsets. The external
participant hears the hold music. When the internal participant answers: Announce the external call, if necessary.
press the end call key a. The call is transferred to the internal participant,
press the display key ” . You are reconnected with the external participant.
When transferring a call you can also press the end call key a before the internal participant answers.
Listening in to an external call
You are conducting an external call. An internal participant can listen in on this call and take part in the conversation
(conference). Prerequisite: The Listening in function must be activated.
Activating/deactivating listening in
§Menu§ ¤ q Settings ¤ §OK§ ¤ q Base ¤ §OK§ ¤ q Listening in ¤ §OK§ (‰ = on)
Internal listening in (conference)
You want to listen in to an existing external call. Press and hold the c key. You can listen in to the call. All participants
hear a signal tone.
To end: press the end call key a. All participants hear a signal tone.
If the first internal participant presses the end call key a, the handset that has "listened in" remains connected to the
external participant.
Setting the alarm clock
Activating/deactivating the alarm clock
§Menu§ ¤ q Alarm Clock ¤ §OK§ ¤ Activation ¤ §OK§ (‰ = on)
When activated: ¤ ~ (Set the wake-up time) ¤ §OK§
When the alarm clock rings, press any key to switch it off for 24 hours. If the alarm clock is set, the wake-up icon l will
appear on the screen and the wake-up time will be displayed instead of the date.
Setting the wake-up time
§Menu§ ¤ q Alarm Clock ¤ §OK§ ¤ q Wake-upTime ¤ §OK§
Enter the wake-up time in hours and minutes, then press §OK§.
Phone settings
For details on activating/deactivating advisory tones and battery low tones, see menu tree (¢ page 23).
For details on setting the display contrast and large dialling numbers, see menu tree (¢ page 24).
For details on how to set the system PIN on the base station, see the menu overview (¢ page 24).
Changing the display language
§Menu§ ¤ q Settings ¤ §OK§ ¤ q Handset ¤ §OK§ ¤ q Language ¤ §OK§ ¤ q (select language) ¤ §OK§
The current language is indicated by ‰.
If you accidentally choose a language you do not understand:
§Menu§ ¤ 421 (press the keys one after the other) ¤ q (select language) ¤ §OK§
Changing the handsfree/earpiece volume
In idle status:
t ¤ Handset Volume ¤ §OK§ ¤ q Earpiece/Speaker ¤ §OK§ ¤ q (set the volume level 1 to 5)
¤ §OK§ (‰ = selected)
During a conversation via the earpiece or in handsfree mode:
t ¤ q (set the volume level 1 to 5)
The setting will automatically be saved after approximately 3 seconds or press the display key §OK§.
You can also set the handsfree/earpiece volume using the menu Audio Settings (¢ page 23).
Setting the sound of the earpiece
Adapt the sound of the earpiece to your needs.
◆ Low: Standard setting.
◆ High: High frequencies are emphasized.
In idle status:
t ¤ Handset Sound ¤ §OK§ ¤ q Low/High ¤ §OK§ (‰ = selected)
You can also set the sound of the earpiece using the menu Audio Settings (¢ page 23).
Setting ring tones of the handset
Setting the ringer volume
In idle status:
t ¤ q Ringer Volume ¤ §OK§ ¤ q (set the volume level 1 to 5 or "Crescendo") ¤ §OK§ (‰ = selected)
You can also set the call volume using the menu Audio Settings (¢ page 23).
Setting the ringer melody
Set different ringer melodies for External Calls, Internal Calls and the Alarm Clock.
In idle status:
t ¤ q Ringer Melody ¤ §OK§ ¤ q External Calls / Internal Calls / Alarm Clock ¤ §OK§ ¤ q (select melody)
¤ §OK§ (‰ = selected)
You can also set the call volume using the menu Audio Settings (¢ page 23).
Time Control (day/night mode)
You can specify a time period when you do not want the telephone to signal external calls e.g., during the night.
Activating Time Control:
§Menu§ ¤ q Settings ¤ §OK§ ¤ q Handset ¤ §OK§ ¤ q Time Control ¤ §OK§ ¤ Activation ¤ §OK§ (‰ = activated)
Setting time period:
§Menu§ ¤ q Settings ¤ §OK§ ¤ q Handset ¤ §OK§ ¤ q Time Control ¤ §OK§ ¤ q Settings ¤ §OK§
¤ Off from: ~ (Enter time in 4-digit format) ¤ §OK§ ¤ Off until: ~ (Enter time in 4-digit format) ¤ §OK§
Anonymous calls silent
You can set your handset so that it doesn't ring for calls where Calling Line Identification has been withheld. The call will
only be signalled on the display.
§Menu§ ¤ q Settings ¤ §OK§ ¤ q Handset ¤ §OK§ ¤ q An.Call Silent ¤ §OK§ (‰ = activated)
Activating/deactivating the ringer
Deactivating/reactivating the ringer permanently
In idle status, press and hold the star key P. If the ringer is deactivated, the Ú icon appears in the display.
Deactivating the ringer for the current call
§Menu§ ¤ Silent ¤ §OK§
Setting ring tones of the base station (A420A only)
Set the Ringer Volume, Ringer Melody and the Time Control for the base station:
§Menu§ ¤ q Settings ¤ §OK§ ¤ q Base ¤ §OK§ ¤ Audio Settings ¤ §OK§
¤ q Ringer Volume/Ringer Melody/Time Control
Perform the setting analogously to the description in "Setting ring tones of the handset".
Activating/deactivating music on hold
You can set that your external participant hears music in case of internal recall and during call transfer.
§Menu§ ¤ P#Q5#1M ¤ The number for the current setting flashes: 0 = off; 1 = on ¤ enter number ¤ §OK§.
Repeater mode
With a repeater, you can increase the range of your base station. You will need to activate repeater mode (¢ page 24).
Repeater mode and No Radiation mode (¢ page 24) cancel each other out.
Resetting the handset
You can reset individual settings and changes that you have made. Entries in the directory, the calls list and the handset's
registration to the base station will be retained.
§Menu§ ¤ q Settings ¤ §§OK§§ ¤ q Handset ¤ §§OK§§ ¤ q Reset Handset ¤ §§OK§§ ¤ Reset? ¤ §§OK§§
Restoring the base station
When restoring factory settings:
◆ Individual settings are reset.
◆ All lists are deleted.
◆ The No Radiation mode is deactivated.
The date and time are retained. The answering machine (A420A only) is ready for use approx. 15 seconds after the base
station has been reset.
Resetting the base station via the menu
When resetting via the menu
◆ Handsets are still registered.
◆ The system PIN is not reset.
§Menu§ ¤ q Settings ¤ §OK§ ¤ q Base ¤ §OK§ ¤ q Base Reset ¤ §OK§ ¤ Reset? ¤ §OK§
Resetting the base station using the key on the base station
When resetting the base station using the key on the base station
◆ All handsets are de-registered and
◆ The system PIN is reset to the original code 0000.
Carry out the following steps: Remove the mains cable from the base station. Hold down the registration/paging key
on the base station (¢ page 1) and reconnect the power cable to the base station at the same time. Hold the key down
for at least 5 seconds.
Operating the base station on the PABX/router
Operating on the router
When operating the Gigaset on an analogue port of a router, you can reduce problems with echoing by activating the
XES Mode (¢ page 24). If you have no problems with echoing, this function should be deactivated.
Operating on the PABX
The following settings are only necessary when your PABX requires them, see the user guide for your PABX.
When entering the digits, enter them slowly one after the other.
Changing the dialling mode
§Menu§ ¤ P#Q5#1N ¤ The number for the set dialling mode flashes: 0 = touch tone dialling (DTMF);
1 = dial pulsing (DP) ¤ enter number ¤ §OK§.
Setting recall
§Menu§ ¤ P#Q5#1Q ¤ The number for the current recall flashes: 0 = 80 ms; 1 = 100 ms; 2 = 120 ms;
3 = 400 ms; 4 = 250 ms; 5 = 300 ms; 6 = 600 ms; 7 = 800 ms ¤ enter number ¤ §OK§.
Changing pause after line seizure
You can set the length of the pause inserted between pressing the talk key c and sending the phone number.
§Menu§ ¤ P#Q5#1L ¤ The number for the current pause length flashes: 1 = 1 sec.; 2 = 3 sec.; 3 = 7 sec.
¤ enter number ¤ §OK§.
Changing the pause after the recall key
§Menu§ ¤ P#Q5#12 ¤ The number for the current pause length flashes: 1 = 800 ms; 2 = 1600 ms;
3 = 3200 ms ¤ enter number ¤ §OK§.
Entering letters/characters
Standard characters
Press the relevant key the number of
times indicated.
Briefly press the hash key # to
switch from "Abc" to "123" mode,
from "123" to "abc" mode and from
"abc" to "Abc" mode.
1 1
2 a
I d
4 g
5 j
L m
M p
N t
O w
P *
1) Space
10x 11x 12x 13x 14x 15x
Technical Data
Technology: Nickel-metal-hydride (NiMH); Size: AAA (Micro, HR03); Voltage: 1,2 V; Capacity: 450 - 1000 mAh
Handset operating times/charging times
Your handset can charge batteries up to a capacity of 1000 mAh. The use of special high-performance batteries or batteries with high capacities is not recommended for cordless phones.
The operating time of your Gigaset depends on the capacity and age of the batteries and the way it is used. (Standby
time/talk time/operating time are maximum possible values, charging times are typical values.)
Standby time (hours)
Talktime (hours)
Operating time for 1.5 hrs of calls per day (hours),
No Radiation mode switched off/on
Charging time in base station (hours)
Charging time in charger (hours)
Capacity (mAh) approx.
Due to the constant progression in battery development, the list of recommended batteries in the FAQ section of the
Gigaset Customer Care pages is regularly updated: www.gigaset.com/service
Base station power consumption
In standby mode
– Handset in base station
– Handset outside base station
During a call
ca. 1.0 W
ca. 0.8 W
ca. 1.0 W
ca. 1.2 W
ca. 1.0 W
ca. 1.2 W
General specifications
DECT standard
GAP standard
Base station power supply
Environmental conditions in operation
is supported
is supported
up to 300 m outdoors, up to 50 m indoors
230 V ~/50 Hz
+5 °C to +45 °C, 20% to 75% relative humidity
Questions and answers
If you have any queries about the use of your telephone, visit our website at www.gigaset.com/service 
for 24-hour support. The table below contains a list of common problems and possible solutions.
Nothing appears on
the display.
The handset is not switched on.
Press the end call key a for approx. 5 seconds or place
the handset in the base station.
Charge or replace the batteries.
The batteries are flat.
No wireless connection to the base station, Base flashes in
the display.
The handset is outside the range of Move the handset closer to the base station.
the base station.
The base station is not turned on. Check the mains connector on the base station
¢ page 3.
The display shows
Register HS or Put
into base.
Handset has not been registered
with the base station or has been
Register the handset ¢ page 13.
Handset does not
The ring tone is deactivated.
The phone only rings if the phone
number has been transferred.
The phone does not ring in a specific time period.
Activate the ring tone ¢ page 16.
Activate the ring tone for anonymous calls ¢ page 15.
¢ page 15.
You cannot hear a
ringer/dialling tone
from the fixed line
The phone cord supplied has not
been used or has been replaced by
a new cord with the wrong jack
Please always use the phone cord supplied or ensure
that the pin connections are correct when purchasing
from a retailer: 3-4 assignment of telephone leads/
Error tone sounds
after system PIN
PIN forgotten.
The system PIN you have entered is Reset the system PIN to the default 0000 ¢ page 16.
All handsets are de-registered. All settings are reset.
All lists are deleted.
Contact with liquid
Deactivate the "Time Control" or change the time period
If the handset has come into contact with liquid:
1 Switch the handset off and remove the battery immediately.
2 Allow the liquid to drain from the handset.
3 Pat all parts dry, then place the handset with the battery compartment open and the keypad facing down in a dry,
warm place for at least 72 hours (not in a microwave, oven etc.).
4 Do not switch on the handset again until it is completely dry.
When it has fully dried out, you will usually be able to use it again.
Customer Service & Assistance
You have questions? As a Gigaset customer, you can take advantage of our comprehensive service offerings. You can find
help quickly in this User Manual and in the service pages of our Gigaset online portal.
Please register your phone right after purchase on www.gigaset.com/uk/service
thus enabling us to provide you even with better service in case of questions or in case of a warranty claim. Your personal
user account enables you to directly contact our customer service by email.
In our constantly updated online service on www.gigaset.com/uk/service you can find:
◆ Extensive information about our products
◆ FAQ compilations
◆ Keyword search to help find topics quickly
◆ Compatibility database: Find out which base stations and handsets can be combined.
◆ Product comparison: Compare the features of several products with each other.
◆ Downloads for user manuals and current software updates
◆ E-mail contact form for customer service
Our service representatives are available on the telephone for more advanced questions or in-person consultation.
Here you can get competent advice on questions regarding installation, operation and configuration:
UK: 0845 367 0812
(local call cost charge)
Please note that if the Gigaset product is not sold by authorised dealers in the national territory the product may not be
fully compatible with the national telephone network. It is clearly specified on the box near the CE mark for which country/countries the equipment has been developed. If the equipment is used in a manner inconsistent with this advice or
with the instructions of the manual and on the product itself, this may have implications on the conditions for warranty
or guarantee claims (repair or exchange of product).
In order to make use of the warranty, the product purchaser is asked to submit a receipt which proves the date of purchase (date from which the warranty period starts) and the type of goods that have been purchased.
This device is intended for analogue phone lines in the UK.
Country-specific requirements have been taken into consideration.
We, Gigaset Communications GmbH, declare that this device meets the essential requirements and other relevant regulations laid down in Directive 1999/5/EC.
A copy of the Declaration of Conformity is available at this Internet address:
Guarantee Certificate 
United Kingdom
Without prejudice to any claim the user (customer) may have in relation to the dealer or retailer, the customer shall be
granted a manufacturer's Guarantee under the conditions set out below:
◆ In the case of new devices and their components exhibiting defects resulting from manufacturing and/or material
faults within 24 months of purchase, Gigaset Communications shall, at its own option and free of charge, either
replace the device with another device reflecting the current state of the art, or repair the said device. In respect of
parts subject to wear and tear (including but not limited to, batteries, keypads, casing), this warranty shall be valid
for six months from the date of purchase.
◆ This Guarantee shall be invalid if the device defect is attributable to improper treatment and/or failure to comply
with information contained in the user guides.
◆ This Guarantee shall not apply to or extend to services performed by the authorised dealer or the customer themselves (e. g. installation, configuration, software downloads). User guides and any software supplied on a separate
data medium shall be excluded from the Guarantee.
◆ The purchase receipt, together with the date of purchase, shall be required as evidence for invoking the Guarantee.
Claims under the Guarantee must be submitted within two months of the Guarantee default becoming evident.
◆ Ownership of devices or components replaced by and returned to Gigaset Communications shall vest in Gigaset
◆ This Guarantee shall apply to new devices purchased in the European Union. For Products sold in the United Kingdom the Guarantee is issued by: Gigaset Communications UK Limited, Quatro House, Lyon Way, Camberley, Surrey,
GU16 7ER.
◆ Any other claims resulting out of or in connection with the device shall be excluded from this Guarantee. Nothing in
this Guarantee shall attempt to limit or exclude a Customers Statutory Rights, nor the manufacturer's liability for
death or personal injury resulting from its negligence.
◆ The duration of the Guarantee shall not be extended by services rendered under the terms of the Guarantee.
◆ Insofar as no Guarantee default exists, Gigaset Communications reserves the right to charge the customer for
replacement or repair.
◆ The above provisions does not imply a change in the burden of proof to the detriment of the customer.
To invoke this Guarantee, please contact the Gigaset Communications telephone service. The relevant number is to be
found in the accompanying user guide.
Our environmental statement
We at Gigaset Communications GmbH are aware of our social responsibility. That is why we actively take steps to create
a better world. In all areas of our business – from product planning and production to sales and waste of disposal – following our environmental conscience in everything we do is of utmost importance to us.
Learn more about our earth-friendly products and processes online at www.gigaset.com.
Environmental management system
Gigaset Communications GmbH is certified pursuant to the international standards ISO 14001 and ISO 9001.
ISO 14001 (Environment): Certified since September 2007 by TüV SÜD Management Service GmbH.
ISO 9001 (Quality): Certified since 17/02/1994 by TüV SÜD Management Service GmbH.
Batteries should not be disposed of in general household waste. Observe the local waste disposal regulations, details of
which can be obtained from your local authority.
All electrical and electronic products should be disposed of separately from the municipal waste stream via designated
collection facilities appointed by the government or the local authorities.
This crossed-out wheeled bin symbol on the product means the product is covered by the European 
Directive 2002/96/EC.
The correct disposal and separate collection of your old appliance will help prevent potential negative consequences for the environment and human health. It is a precondition for reuse and recycling of used electrical and electronic equipment.
For more detailed information about disposal of your old appliance, please contact your local council refuse centre or
the original supplier of the product.
Menu overview
Your phone has an extensive range of features. These are offered in the form of menus.
To select a function while the phone is in idle status, press §Menu§ (open menu), use the control key q to scroll to the
function you require and press §OK§ to confirm.
To return to idle status: press and hold the a key.
Not all of the functions described in this user guide are available in all countries.
Alarm Clock
¢ page 14
¢ page 14
è Audio Settings
Handset Volume
Handset Sound
Ringer Volume
¢ page 15
¢ page 15
¢ page 15
Ringer Melody
External Calls/Internal Calls/Alarm Clock
Battery Low
¢ page 15
ê Answer Machine
Play Messages
Net Mailbox **
Playing back messages on the network mailbox ¢ page 13.
Answ. Mach. **
Playing back messages on the answering machine ¢ page 11.
Answ. Mach. *
Activating/deactivating the answering machine ¢ page 11.
Call Screening *
Screening of a message on the handset (handsfree mode) that is being recorded on/off.
Deactivate screening for the actual recording only: press end call key a.
(Prerequisite: at least 1 handset with handsfree capability is registered.)
Announcements *
Rec announce./Play announce./Del announce.
Message Length *
Maximum/1 Minute/2 Minutes/3 Minutes
Ring Delay *
Immediately/10 sec/18 sec/30 sec
Net Mailbox
Set Key 1 *
¢ page 11
If there are no new messages, the answering machine answers a call after
18 seconds. If new messages are present, the answering machine answers
a call after just 10 seconds.
Enter number of the network mailbox ¢ page 13.
Net Mailbox
Assign key 1 with network mailbox. 
(In idle status, press and hold key 1 to dial.)
Answ. Mach.
Assign key 1 with answering machine.
(In idle status, press and hold key 1 to dial.)
* base station with answering machine only
** base station with answering machine only and number of network mailbox entered
ç Settings
¢ page 5
¢ page 15
Big Dial Font
Set bigger digits for dialling.
Set the display contrast to 9 levels.
Time Control
¢ page 15
¢ page 15
Auto Answer
Activate/deactivate auto answer ¢ page 7.
Register HS
¢ page 13
¢ page 13
¢ page 16
De-register HS
Reset Handset
An.Call Silent
Audio Settings
(A420A only)
Ringer Volume
¢ page 16
Ringer Melody
¢ page 16
¢ page 16
Time Control
Call list type
Missed Calls/All Calls
¢ page 10
System PIN
Change system PIN (default is 0000).
Base Reset
¢ page 16
¢ page 2
Listening in
Issued by
Gigaset Communications GmbH
Frankenstr. 2a, D-46395 Bocholt
¢ page 16
XES Mode
(Activate in case of problems with echos on
an analogue port of a router.)
No Radiation/Max. Range
¢ page 2
¢ page 14
Presel. Number/With Preselect/Without Presel.
¢ page 7
© Gigaset Communications GmbH 2012
Subject to availability. All rights reserved. 
Rights of modification reserved.
This user guide is made from 100 % recycled paper.
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