Gigaset SL450 User manual

Gigaset SL450 / LUG GR en / A31008-M2701-T101-1-8U19 / Cover_front_LUG.fm / 9/28/15
SL450
You can find the most
up-to-date user guide at
www.gigaset.com/manuals
User guide online on your
smartphone or tablet:
Download the Gigaset Help app

Gigaset SL450 / LUG GR en / A31008-M2701-T101-1-8U19 / Cover_front_LUG.fm / 9/28/15

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Contents
Contents
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Safety precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Getting started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . .6
Using the telephone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . 11
Getting to know your telephone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Making calls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Provider-specific functions (network services) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Network mailbox . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Message lists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Call lists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . 27
Directory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Additional functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Sound profiles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Calendar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Alarm clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Baby monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
ECO DECT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Protection against unwanted calls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
SMS (text messages) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Resource Directory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . 47
Bluetooth . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Additional functions using the PC interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Expanding the functionality of the telephone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Multiple handsets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Repeater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Operation with a router . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Operation with a PABX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Adjusting the telephone settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Questions and answers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Customer Service & Assistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Manufacturer's advice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Display icons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Menu overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . 77
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
Not all functions described in the user guide are available in all countries or from all
network providers.

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2
3
5
12
1
INT 1
Calls Calendar
6
10
9
4
11
13
14
15
7
8
A
Box 100

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Overview
Overview
Handset
Base
1Display
2 Status bar ( p.75)
Icons display current settings and operating
status of the telephone
3Displaykeys( p. 12)
Various functions, depending on the operating
situation
4Messagekey( p.25)
Access to the call and message lists;
Flashes: new message or new call
5 End call key, On/off key
End call; cancel function;
Go back one menu level Press briefly
Return to idle status Press and
hold
Switch the handset on/off
(in idle status)
Press and
hold
6Hashkey
Lock/unlock the keypad
(in idle status)
Press and
hold
Toggle between upper/lower
case and digits
(when inputting text)
Press briefly
Insert a dialling pause Press and
hold
7Microphone
8 Recall key
Consultation call (flash) Press briefly
9USBconnectionsocket
For data exchange between the handset and PC
10 Star key
Open special characters table
(when inputting text)
Press briefly
Switch from pulse dialling to
tone dialling
(for an existing connection)
Press briefly
11 Headset connection
(2.5 mm jack)
12 Key 1
Select network mailbox Press
and hold
13 Talk key / Handsfree key
Accept call; dial number displayed; switch
between receiver and handsfree mode; send
SMS (when composing an SMS)
Open the redial list Press briefly
Start dialling Press
and hold
14 Profile key
Switch between sound profiles
15 Control key / menu key ( p. 11)
Open a menu; navigate in menus and entry
fields; access functions (depending on the
situation)
A Registration/paging key
Locate a handset (paging) Press briefly
Register handset Press
and hold

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Illustration in the user guide
Gigaset SL450 / LUG GR en / A31008-M2701-T101-1-8U19 / user_guide_operating_steps.fm / 9/28/15
Illustration in the user guide
Keys
Procedures
Example: Switching Auto answer on/off
¤. . . use to select Settings OK Telephony OK Auto Answer
Change ( =on)
Warnings, which, if not heeded, can result in injury to persons or damage to devices.
Important information regarding function and appropriate handling or functions
that could generate costs.
Prerequisite for being able to carry out the following action.
Additional helpful information.
or Talk key or Handsfree key
End call key to Number / letter keys
/ Control key rim / centre Message key
Recall key Star key
Hash key Profile key
OK,Back,Select, Change, Save, . . . Display keys
Step Follow this procedure
¤When in idle status press the centre of the control key.
The main menu opens.
¤
¤OK
Navigate to the icon using the control key .
Select OK to confirm. The submenu Settings opens.
¤
Telephony
¤OK
Select the Telephony entry using the control key .
Select OK to confirm. The submenu Telephony opens.
¤Auto Answer The function to switch Auto answer on/off appears as the first menu item.
¤Change Select Change to activate or deactivate. Function is activated /
deactivated .

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Safety precautions
Safety precautions
Read the safety precautions and the user guide before use.
The device cannot be used in the event of a power failure. In case of a power failure it
is also not possible to make emergency calls.
Emergency numbers cannot be dialled if the keypad/display lock is activated!
Do not use the devices in environments with a potential explosion hazard
(e.g. paint shops).
The devices are not splashproof. For this reason do not install them in a damp environ-
ment such as bathrooms or shower rooms.
Use only the power adapter indicated on the device.
Use only rechargeable batteries that correspond to the specification (see "Specifica-
tions"). 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.
Remove faulty devices from use or have them repaired by our Service team, as these
could interfere with other wireless services.
Do not use the device if the display is cracked or broken. Broken glass or plastic can cause
injury to hands and face. Send the device to our Service department to be repaired.
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.
The phone may cause interference in analogue hearing aids (humming or whistling) or
cause them to overload. If you requireassistance, please contact the hearing aid supplier.
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 fre-
quency energy (for the specifications of your Gigaset product see "Specifications").

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Getting started
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Getting started
Contents of the package
•One base,
•One power adapter for the base,
•One phone cable,
•One handset
•One battery cover (rear cover for the handset)
•One battery
•One charging cradle incl. power adapter
•One belt clip
•One user guide
Models with multiple handsets, per handset:
•One handset
•One charging cradle incl. power adapter
•One battery, one battery cover and one belt clip
The base station and charging cradle are designed for use in closed, dry rooms within
a temperature range of +5 °C to +45 °C.
The device's feet do not usually leave any marks on surfaces. However, due to the mul-
titude of different varnishes and polishes used on furniture, contact marks on the sur-
faces cannot be completely ruled out.
Never expose the telephone to heat sources, direct sunlight or other electrical
devices.
Protect your telephone from moisture, dust, corrosive liquids and vapours.

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Base
Base
•Insert the phone cable into the right-hand connection socket at the rear of the base until
it clicks into place.
•Insert the power cable from the power adapter into the connection socket on the left .
•Push both cables into the appropriate cable channels .
•Place the cover in the notches on the back of the base (not if mounting on the wall).
•Connect the power adapter
•Connect the phone jack
Handset
Connecting the charging cradle
¤Connect the flat plug of the power adapter .
¤Plug the mains unit into your power socket .
To remove the plug from the charging cradle
again:
¤Disconnect the power adapter from the mains
power supply.
¤Press the release button .
¤Pull out the plug .
4
3
2 1
5
3a
1
2
3
3a
4
5
The network cable must always be connected in order to function, as the phone will
not operate without a power supply.
2
1
3
4
1
2
3
4

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Handset
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Setting up the handset for use
The display is protected by a plastic film. Please remove the protective film!
Inserting the battery
Re-opening the battery cover
Only use a rechargeable battery, as this could otherwise result in significant health
risks and personal injury. For example, the outer casing of the battery could be
destroyed or the battery could explode. The device could also malfunction or be
damaged as a result of using batteries that are not of the recommended type.
¤Insert battery with the contact side pointing
down .
¤Press the battery down until it clicks into
place .
¤Orientate the battery cover with the
side tabs fitting into the slots on the
inside of the casing .
¤Press the cover until it clicks into place.
¤Remove the belt clip (if attached).
¤Place your fingernail in the notch underneath
the battery cover and pull the battery cover
up .
¤To change the battery, place your
fingernail in the recess in the housing
and pull the battery up .
2
1
3
1
2
3
1
2
1
2

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Handset
Charge the battery
¤Charge the battery fully prior to first use in the
charging cradle or using a standard USB mains
adapter.
The battery is fully charged when the power icon
disappears from the display.
Attaching the belt clip
The handset has notches on each side for attaching the belt clip.
•Attaching the belt clip: Press the belt clip onto the back of the
handset so that the tabs on the belt clip click into place in the
notches.
•Removing the belt clip: Press the centre of the belt clip firmly
with your right thumb. Push the nail of your left thumb up
between the clip and the casing. Slide the clip upwards to
remove.
Changing the display language
You can change the display language, if the telephone has been set to an incomprehensible
language.
¤Press the centre of the control key .
¤Press the keys and slowly and successively . . . the
language settings display appears, the set language
(e. g. English) is highlighted ( = selected).
¤To select a different language: Press the control key until
the desired language is highlighted on the display,
e. g. Francais press the key on the right directly underneath the display to activate the
language.
¤To revert to idle status: Press and hold the End call key
3 h
The battery may heat up during charging. This is not dangerous.
After a time, the charge capacity of the battery will decrease for technical reasons.
Handsets contained in the package have already been registered to the base. In the
event that a handset is not registered however, (indicated by "Please register
handset"), register the handset manually ( p. 52).
Deutsch
English
Francais

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Handset
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Setting the date and time
Set the date/time so that the correct date and time can be assigned to incoming calls, and to
enable the alarm to be used.
¤Press the display key Time
or, if the date and time have already been set:
¤. . . use to select Settings OK Date/Time
OK
The active cursor position flashes . . . change cursor position with
. . . switch between cursor positions with
Enter date:
¤. . . using enter the day, month and year in 8-digit format,
e.g. for15/08/2015.
Enter time:
¤. . . using enter hours and minutes in 4-digit format,
e.g. for 07:15.
Save settings:
¤Press the display key Save. . . . Saved is shown in the display and
a confirmation tone sounds.
Return to idle status:
¤Press and hold the End call key
The telephone is now ready for use.
Connecting the headset
¤Connect the headset with 2.5 mm jack to the left side of the
handset .
or
¤Connect headset via Bluetooth ( p. 48).
The headset volume corresponds with the setting for the receiver
volume ( p. 60).
Connecting the USB data cable
For data exchange between the handset and PC:
¤Connect the USB data cable with micro-USB plug into the
USB socket at the bottom of the handset .
Connect the handset directly to the PC, not via a
USB hub.
Calls Time
Date/Time
Date:
15/08/2015
Time:
00:00
Back Save
1
1
1
1

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Getting to know your telephone
Using the telephone
Getting to know your telephone
Switch the handset on/off
Lock/unlock the keypad
The keypad lock prevents any accidental use of the telephone.
Lock/unlock the keypad: Press and hold
Keypad lock activated: the following symbol appears
Control key
In the description below, the side of the control key (up, down, right, left) that you have to press
in the different operating situations is marked in black, e. g. for "press right on the control
key" or for "press the centre of the control key".
In idle status
In submenus, selection and entry fields
During a conversation
Switch on: ¤When the handset is switched off, press and hold the End call key
Switch off: ¤When the handset is in idle status, press and hold the End call key
If a call is indicated on the handset, the keypad automatically unlocks and you can
accept the call. It then locks again when the call is finished.
It is not possible to call emergency numbers either when keypad lock is activated.
The control key enables you to navigate the menus and input fields, and also to
call up certain functions depending on the situation.
Open the directory Press briefly
Open the main menu or
Open the list of handsets
Confirm a function
Open the directory
Mute the microphone
Initiate an internal consultation call
Adjust the loudspeaker volume for receiver and handsfree mode

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Getting to know your telephone
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Display keys
The display keys perform a range of functions depending on the operating situation.
Display key icons p. 75.
Menu guidance
The functions of your telephone are displayed in a menu that consists of several levels. Menu
overview p. 77
Selecting/confirming functions
Main menu
In idle status: Press the centre of the control key . . . use
the control key to select a submenu OK
The main menu functions are shown in the display as icons. The
icon for the selected function is highlighted in colour and the
name of the associated function appears in the display header.
The display keys have a function preset by default in idle status. Change the
assignment: p. 63
Confirm selection using OK or press the centre of the control key
One menu level back using Back
Change to idle status Press and hold
Switch function on/off using Change on / off
Activate/deactivate option using Select activated / not activated
Current display key
functions
Display keys
Back Save
Example
Settings
Back OK

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Getting to know your telephone
Submenus
The functions in the submenus are displayed as lists.
To access a function: . . . use the control key to select a
function OK
Return to the previous menu level:
¤Press the display key Back
or
¤Press the End call key briefly
Returning to idle status
¤Press and hold the End call key
Entering text
Input position
¤Use to select an entry field. A field is activated when the
cursor is blinking inside it.
¤Use to move the position of the cursor.
Correcting incorrect entries
•Delete characters to the left of the cursor: Press briefly
•Delete words to the left of the cursor: Press and hold
Entering letters/characters
Multiple letters and numbers are assigned to each key between
and and the key. As soon as a key is pressed, the
possible characters are displayed at the bottom of the display. The
selected character is highlighted.
•Selecting letters/numbers: Press the key briefly several times in succession
•Switch between lower case, upper case and number entry mode: Press the hash key
When editing a directory entry, the first letter and each letter following a space is
automatically in upper case.
•Entering special characters: Press the star key . . . use to navigate to the
desired character Insert
If a key is not pressed, after 2 minutes the display will automatically change to idle
status.
The availability of special characters depends on the character set of the handset
p. 74.
Settings
Date/Time
Audio Settings
Display & Keypad
Language
Registration
Back OK
Example
New Entry
First Name:
Peter
Surname:
Phone (Home):
Abc
‚Save

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Making calls
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Making calls
Making calls
¤. . . use to enter the number briefly press the Talk key
or
¤Press and hold the Talk key . . . use to enter the number
Cancel dialling: Press the End call key
Dialling from the directory
¤. . . use to open the directory . . . use to select an entry press the Talk key
If multiple numbers are entered:
¤. . . use to select a number press the Talk key . . . the number is dialled
Dialling from the redial list
The redial list contains the 20 numbers last dialled with the handset.
¤Briefly press the Talk key . . . the redial list is opened . . . use to select an entry
press the Talk key
If a name is displayed:
¤View . . . the number is displayed . . . use to browse numbers if necessary . . . when
the desired number is reached press the Talk key
Managing entries in the redial list
¤Briefly press the Talk key . . . the redial list is opened . . . use to select an entry
Options . . . possible options:
Information for Calling Line Identification: p. 20
If the display backlight is deactivated, you can reactivate it by pressing any key. Digit
keys that are pressed appear in the display for pre-dialling, other keys have no further
function.
For fast access (quick dial): Assign numbers from the directory to the digit or display
keys.
Copy an entry to the directory:
¤Copy to Directory OK
Copy the number to the display:
¤Display number OK . . . use to amend or add num-
bers if necessary . . . use to save as a new entry in the directory
Delete the selected entry:
¤Delete entry OK
Delete all entries: ¤Delete List OK

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Making calls
Dialling from the call list
The call lists ( p. 27) contain the most recent accepted, outgoing and missed calls.
¤. . . use to select Call Lists OK . . . use
to select a list OK . . . use to select an entry
Press the Talk key
One touch call
A saved number is dialled by pressing any key. This allows children
who are not yet able to enter a number to call a certain number, for
example.
Activate one touch call mode:
¤. . . use to select Additional Features OK
One Touch Call OK . . . use to activate Activation
Call to . . . use to enter the number Save . . . the
active one touch mode is shown in the idle display
Make a one touch call: Press any key . . . the saved number is
dialled
Cancel dialling: Press the End call key .
End one touch call: Press and hold the End call key
Set automatic line seizure:
¤Automatic Redial . . . the dialled number is automatically
dialled at fixed intervals (at least every 20 secs). The handsfree key
flashes, "open listening" is activated.
The participant answers: Pressthe Talk key . . . the function
is terminated
The participant does not answer: The call is interrupted after
around 30 secs. The function is terminated after pressing any key
or after ten unsuccessful attempts.
The call lists can be displayed directly by pressing the
display key Calls if the relevant function has been
assigned to the display key.
The Missed calls list can also be opened by pressing
the Message key .
All calls
Frank
14/02/2015, 15:40
089563795
13/02/2015, 15:32
Susan Black
11/02/2015, 13:20
View Options
Example
07:15
INT 1 22 Feb
OneTouchCall active
0891234567
OFF

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Template Go, Version 1, 01.07.2014 / ModuleVersion 1.0
Making calls
Gigaset SL450 / LUG GR en / A31008-M2701-T101-1-8U19 / telephony.fm / 9/28/15
Incoming calls
An incoming call is indicated by ringing, by a display on the screen and by the flashing Talk
key . Accept a call:
•Press the Talk key or Accept
•If Auto Answer is activated: Remove the handset from the charging cradle
•Accept a call on the headset
•Accept a call with the Gigaset L410 handsfree clip: Press the Talk key .
Switch off ringtone: Silence . . . the call can be accepted for as long as it is shown on the
display
Information about the caller
The caller's phone number is displayed. If the caller's number is saved in the directory, the name
is displayed.
Accepting/rejecting call waiting
A call waiting tone indicates a call during an external call. The number or the name of the caller
is displayed if the phone number is transferred.
•Reject a call: Options Reject waiting call OK
•Accept a call: Accept . . . speak to the new caller. The previous call is placed on hold.
•End the call, resume the on-hold call: Press the End call key .
Further information about making calls:
•Calling Line Identification,
•Managing entries in the redial list,
•One touch call,
•Dialling in extension systems
can be found in the detailed user guide for the Gigaset SL450 at
www.gigaset.com/manuals
The Gigaset L410 is registered to the base station Gigaset L410 user guide
The caller's number will be transferred ( p. 20).

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Gigaset SL450 / LUG GR en / A31008-M2701-T101-1-8U19 / telephony.fm / 9/28/15
Template Go, Version 1, 01.07.2014 / ModuleVersion 1.0
Making calls
Making internal calls
¤Press briefly . . . the handset list is opened, this handset is indicated by < . . . use
to select handset or Call all (group call) Press the Talk key
Fast access for group call:
¤Press briefly
or press and hold
Internal consultation call/internal transfer
Call an external participant and transfer the call to an internal participant or hold a consultation
call with him or her.
¤. . . the list of handsets is opened . . . use to select a handset or Call all OK
. . . the internal participant(s) are called . . . possible options:
Establishing a conference call/call swapping
Conduct a call while a second call is being held. Both callers are indicated on the display.
•Call swapping: Use to swap between both participants.
•Establish a three-way conference call: Conf.
•End a conference call: End Conf. . . . You have been connected backto external participant
. . . use to swap between both participants
The other participants end the conference call using the End call key .
Multiple handsets have been registered to the base station ( p. 52).
Internal calls to other handsets registered to the same base station are free of charge.
You hear the busy tone if:
•there is already an internal connection,
•The handset being called is not available (deactivated, outside of range).
•The internal call is not accepted within 3 minutes.
Hold a consultation call:
¤Speak to the internal participant
Return to the external call:
¤Options End active call OK
Transfer the external call when the internal participant has answered:
¤Announce an external call Press the End call key
Transfer the external call before the internal participant answers:
¤Press the End call key . . . the external call is forwarded
immediately. If the internal participant does not answer or the line
is busy, the external call will automatically return to you.
End the internal call if the internal participant does not answer or the line is busy:
¤End . . . You return to the external call

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Template Go, Version 1, 01.07.2014 / ModuleVersion 1.0
Making calls
Gigaset SL450 / LUG GR en / A31008-M2701-T101-1-8U19 / telephony.fm / 9/28/15
Accepting/rejecting call waiting
An external call arriving during an internal call is indicated with a call waiting tone. If the number
is transferred, you will see the number or the name of the caller on the display.
•Rejecting a call: Reject
The call waiting tone is turned off. The call continues to be indicated on the other registered
handsets.
•Accepting a call: Accept . . . Speak to the new caller, the previous call is placed on hold.
Internal call waiting during an external call
If an internal participant attempts to call you while you are involved in an external orinternal call,
this call is shown on the display (Call Waiting).
•End display: Press any key
•Accept the internal call: End your current call
The internal call is indicated in the usual way. You can accept the call.
Listening in to an external call
You are conducting an external call. An internal participant can listen in to this call and take part
in the conversation (conference).
Activating/deactivating internal listening in
¤. . . use to select Settings OK Telephony OK Listening
In Change ( =on)
Internal listening in
The line is engaged with an external call. Your screen will display information to that effect. You
can listen in to the external call.
¤Press and hold . . . all participants will hear a signal tone
Ending listening in
¤Press . . . all participants will hear a signal tone
The Listening In function must be activated.