Gigaset C450 IP User manual

s
Gigaset C450 IP
cyan magenta yellow black Liebreich Medienproduktion
Issued by
Siemens Home and Office Communication Devices GmbH & Co. KG
Schlavenhorst 66
D-46395 Bocholt
© Siemens Home and Office Communication Devices GmbH & Co. KG 2005
All rights reserved. Subject to availability.
Rights of modification reserved.
www.siemens.com/gigaset
BA Cover C450 IP.qxd 28.10.2005 11:40 Uhr Seite 1

1
The handset at a glance
Gigaset C450 IP LBA / IM-Nord EN / A31008-M1713-R201-1-7619 / overview.fm / 10.3.06
Version 4, 16.09.2005
The handset at a glance
Base station at a glance
Handset keys
1Display in idle status (example)
2Battery charge status
eVU(1/3 charged to fully
charged)
= flashes: battery nearly empty
eVUflashes: battery charging
3Control key (page 16)
4Display keys (page 16)
5End call key, On/Off key
End call, cancel function, go back one menu
level (press briefly), back to idle status (press
and hold), activate/deactivate handset
(press and hold in idle status)
6Message key
Opens calls and message lists
Flashes: new message or new call
7Hash key
Keypad lock on/off (press and hold,
page 16)
Toggle between upper/lower case letters
and digits for text entry (page 58)
8Alarm clock key (page 36)
Activating/deactivating the alarm clock
9Microphone
10 Recall key (not for VoIP connections)
Enter flash (press briefly)
Insert a pause (press and hold)
11 Star key
Ringtones on/off (press and hold in idle
status)
12 Connection socket for headset (page 10)
13 Handsfree key
Switch between earpiece and handsfree
mode
Lights up: handsfree talking activated
Flashes: incoming call
14 Talk key
Accept a call, open last number redial list
(press briefly in idle status), select connec-
tion type and start dialling (press briefly/
press and hold after entering the number)
15 Signal strength
¦ § ¨ (low to high)
¥ flashes: no reception
Base station key
1Paging key
Lights up: LAN connection active (phone is
connected to router)
Flashes: Data transfer to LAN connection
Press briefly: start paging (page 32)
Press and hold: set base station to registra-
tion mode (page 31)
13
2
3
5
4
6
7
10
1
11
8
9
14
15
12
¨V
11.03.06 11:56
§§§§§§INT§§§§§ §§§§Menu§
1

2
Contents
Gigaset C450 IP LBA / IM-Nord EN / A31008-M1713-R201-1-7619 / C450IP_laenderIVZ.fm / 10.3.06
Version 4, 16.09.2005
Contents
The handset at a glance . . . . . . . . 1
Base station at a glance . . . . . . . . 1
Safety precautions . . . . . . . . . . . . 4
Gigaset C450 IP –
more than just making calls . . . . . 5
VoIP – Making calls via the
Internet . . . . . . . . . . . . . . . . . . . . . 5
First steps . . . . . . . . . . . . . . . . . . . . 6
Pack contents . . . . . . . . . . . . . . . . . . . . 6
Setting up the handset for use . . . . . . . 6
Installing the base station . . . . . . . . . . 7
Connecting the base station . . . . . . . . 7
Making settings for VoIP telephony . . . 9
Belt clip and headset . . . . . . . . . . . . . 10
Menu trees . . . . . . . . . . . . . . . . . . 11
Phone menu . . . . . . . . . . . . . . . . . . . . 11
Web configurator menu . . . . . . . . . . . 13
Making calls . . . . . . . . . . . . . . . . . 14
Making an external call . . . . . . . . . . . 14
Ending a call . . . . . . . . . . . . . . . . . . . . 14
Accepting a call . . . . . . . . . . . . . . . . . 14
Calling Line Identification . . . . . . . . . 15
Handsfree talking . . . . . . . . . . . . . . . . 15
Muting the handset . . . . . . . . . . . . . . 16
Dialling the emergency number . . . . 16
Operating the handset . . . . . . . . 16
Switching the handset on/off . . . . . . . 16
Activating/deactivating the
keypad lock . . . . . . . . . . . . . . . . . . . . . 16
Control key . . . . . . . . . . . . . . . . . . . . 16
Display keys . . . . . . . . . . . . . . . . . . . . 16
Returning to idle status . . . . . . . . . . . 17
Menu guidance . . . . . . . . . . . . . . . . . 17
Correcting incorrect entries . . . . . . . . 18
Network services . . . . . . . . . . . . . 19
Making settings for all calls . . . . . . . . 19
Functions during a call . . . . . . . . . . . . 19
Functions after a call . . . . . . . . . . . . . 20
Using the directory and lists . . . 21
Directory . . . . . . . . . . . . . . . . . . . . . . . 21
Last number redial list . . . . . . . . . . . . 22
Opening lists with the message key . . 23
Making cost-effective calls . . . . 24
Displaying the call duration . . . . . . . . 24
SMS (text messages) . . . . . . . . . 25
Writing/sending an SMS . . . . . . . . . . . 25
Receiving an SMS . . . . . . . . . . . . . . . . 26
Setting SMS centre . . . . . . . . . . . . . . . 28
SMS on a PABX . . . . . . . . . . . . . . . . . . 28
Activating/deactivating the SMS
function . . . . . . . . . . . . . . . . . . . . . . . . 28
SMS troubleshooting . . . . . . . . . . . . . 29
Using the network mailbox . . . 30
Configuring the network mailbox
for fast access . . . . . . . . . . . . . . . . . . . 30
Viewing the network mailbox
message . . . . . . . . . . . . . . . . . . . . . . . 30
Using several handsets . . . . . . . 31
Registering handsets . . . . . . . . . . . . . . 31
De-registering handsets . . . . . . . . . . . 31
Changing a handset's internal number 32
Changing the name of a handset . . . . 32
Locating a handset ("Paging") . . . . . . . 32
Making internal calls . . . . . . . . . . . . . . 32
Handset settings . . . . . . . . . . . . 34
Change display language . . . . . . . . . . 34
Setting the display . . . . . . . . . . . . . . . 34
Activating/deactivating auto-answer . 34
Adjusting the loudspeaker volume . . . 34
Changing ringtones . . . . . . . . . . . . . . 35
Activating/deactivating muting
of the first ringtone . . . . . . . . . . . . . . . 35
Advisory tones . . . . . . . . . . . . . . . . . . 35
Using the handset as an alarm clock . 36
Restoring the handset default
settings . . . . . . . . . . . . . . . . . . . . . . . . 36
Base station settings . . . . . . . . . 37
Restoring the base station to
factory settings . . . . . . . . . . . . . . . . . . 37
Activating/deactivating repeater
mode . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Setting up an emergency number . . . 37
Set default connection . . . . . . . . . . . . 37
Updating the base station firmware . . 38

3
Contents
Gigaset C450 IP LBA / IM-Nord EN / A31008-M1713-R201-1-7619 / C450IP_laenderIVZ.fm / 10.3.06
Version 4, 16.09.2005
Making VoIP settings . . . . . . . . . 38
Using the connection wizard . . . . . . . 38
Changing settings without the
connection wizard . . . . . . . . . . . . . . . 38
Setting the phone's IP address in
LAN . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Activating/deactivating display
of VoIP status messages . . . . . . . . . . . 40
Check the base station MAC address . 40
Operating the base station
on the PABX . . . . . . . . . . . . . . . . . 40
Changing the dialling mode . . . . . . . . 40
Setting the flash time . . . . . . . . . . . . . 41
Setting pauses . . . . . . . . . . . . . . . . . . 41
Switching temporarily to tone
dialling (DTMF) . . . . . . . . . . . . . . . . . . 41
Web configurator . . . . . . . . . . . . 42
Configuring the phone via your PC . . 42
Connecting your PC to the Web
configurator . . . . . . . . . . . . . . . . . . . . 42
Registering, setting the Web
configurator language . . . . . . . . . . . . 42
De-registering . . . . . . . . . . . . . . . . . . . 43
Structure of the Web pages . . . . . . . . 43
Opening Web pages . . . . . . . . . . . . . . 44
Setting phone with Web configurator 45
Checking status information via your
phone . . . . . . . . . . . . . . . . . . . . . . . . . 52
Appendix . . . . . . . . . . . . . . . . . . . 53
Symbols and typographical
conventions used . . . . . . . . . . . . . . . . 53
Care . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Contact with liquid . . . . . . . . . . . . . . 53
Questions and answers . . . . . . . . . . . 53
Voice quality and infrastructure . . . . . 55
Service (Customer Care) . . . . . . . . . . 56
Authorisation . . . . . . . . . . . . . . . . . . . 57
Specifications . . . . . . . . . . . . . . . . . . . 57
Writing and editing a text message . . 58
PPPoE connection . . . . . . . . . . . . . . . . 59
Gigaset C450 IP – Free software . . . . 59
Accessories . . . . . . . . . . . . . . . . . 66
Glossary . . . . . . . . . . . . . . . . . . . . 67
Index . . . . . . . . . . . . . . . . . . . . . . . 77

4
Safety precautions
Gigaset C450 IP LBA / IM-Nord EN / A31008-M1713-R201-1-7619 / security.fm / 10.3.06
Version 4, 16.09.2005
Safety precautions
Caution:
Read the safety precautions and the user guide before use.
Explain their contents to your children, and the potential hazards associated with using the tele-
phone.
Only use the mains adapter supplied, as indicated on the underside of the base station.
Fit only the recommended rechargeable batteries (page 57) of the same type! This
means: do not use any other battery type or non-rechargeable batteries as this could
result in significant health risks and personal injury.
Insert rechargeable batteries with the correct polarity, and use them according to this user
guide (polarity symbols can be seen in the handset's battery compartment, page 6).
The operation of medical appliances may be affected. Be aware of the technical conditions
in your particular environment, e.g. doctor's surgery.
Do not hold the rear side of the handset to the ear when it rings or when you have acti-
vated on the handsfree function. Otherwise you risk serious and permanent damage to
your hearing.
The handset may cause an unpleasant humming noise in hearing aids.
Do not install the base station in bathrooms or shower rooms. The handset and base sta-
tion are not splashproof (page 53).
Do not use your phone in environments with a potential explosion hazard (e.g. paint
shops).
If you give your Gigaset to someone else, make sure you also give them the user guide.
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
city office, waste disposal service or the shop where you purchased the product.
Note:
Not all of the functions described in this user guide are available in all countries.
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5
Gigaset C450 IP – more than just making calls
Gigaset C450 IP LBA / IM-Nord EN / A31008-M1713-R201-1-7619 / starting.fm / 10.3.06
Version 4, 16.09.2005
Gigaset C450 IP –
more than just making calls
Your phone lets you make calls both via
the fixed network and (cost effectively) via
the Internet (VoIP) without using a PC. It
is secured against Internet viruses by its
own network interface with protected
operating system.
And your phone can do much more
besides:
uBy registering a second handset to your
base station, you can use one handset
to make a call via the fixed network and
the other to make a call via the Internet.
uConfigure the phone connection for
VoIP without a PC. Your phone's con-
nection wizard downloads general data
about your VoIP provider from the
Internet and guides you through enter-
ing your personal data (account). This
makes it easy for you to start using VoIP
(page 9).
uIf necessary, establish any further
required VoIP settings on a PC. The
phone has a Web interface (Web con-
figurator) that can be accessed via
your PC's Web browser (page 42).
uAssign your own password (system
PIN) to protect your device and the Web
configurator from unauthorised access
(page 37).
uYou can operate your phone behind a
router or a switch (depending on your
provider). To operate behind a switch,
you may need a firmware update from
the Internet.
uSend and receive SMS messages via the
fixed network (page 25).
uSave 100 phone numbers on your
handset (page 21).
uYou can programme the keys of your
phone with important phone numbers.
The phone number is then dialled by
simply pressing the respective key
(page 22).
uUse the handsfree function to keep
your hands free when making a call
(page 15).
uUse your handset as an alarm clock
(page 36).
Have fun using your new telephone!
VoIP – Making calls via the
Internet
With VoIP (Voice over Internet Protocol),
your calls are not made via a fixed connec-
tion as in the telephone network, but
rather they are transmitted via the Inter-
net in the form of data packets.
You can take advantage of all the benefits
of VoIP with your phone:
uYou can make cost-effective calls with
high voice quality with subscribers on
the Internet, the fixed network or the
mobile phone network.
uYour SIP provider will give you a per-
sonal number, with which you can be
reached from the Internet, the fixed
network and any mobile phone net-
work.
To be able to use VoIP, you need the fol-
lowing:
uA broadband Internet connection (e.g.
DSL) with flat rate or volume-based
price
uInternet access, i.e. you need a router
that will connect your phone to the
Internet. You can find a list of recom-
mended routers on the Internet at:
http://siemens.com/gigaset
uAccess to the services of a VoIP pro-
vider. Open an account with a VoIP pro-
vider.

6
First steps
Gigaset C450 IP LBA / IM-Nord EN / A31008-M1713-R201-1-7619 / starting.fm / 10.3.06
Version 4, 16.09.2005
First steps
Pack contents
The pack contains:
uone Gigaset C450 IP base station
uone Gigaset C45 handset
uone mains adapter for the base station
uone charging cradle incl. mains adapter
uone phone cord
uone Ethernet cable (LAN cable)
utwo batteries
uone battery cover
uone belt clip
uone quick guide
Setting up the handset for use
The display is protected with
a plastic film. Please
remove the protective
film!
Inserting the batteries
¤Insert the batteries the right way round
(see figure).
The polarity is indicated in the battery
compartment.
The handset switches on automatically.
You will hear a confirmation tone.
Closing the battery cover
¤Place the cover on the battery compart-
ment as shown in the diagram, then
push it up until it clicks into position.
Opening the battery cover
¤Press down on the battery cover below
its upper end and slide the cover down.
Connecting the charging cradle
Connecting up the charging cradle and
mounting it on the wall (if required) is
described at the end of this user guide.
¤To charge the batteries, leave the hand-
set in the charging cradle.
For questions and problems see page 53.
Caution:
Use only the rechargeable batteries recom-
mended by Siemens Home and Office
Communication Devices GmbH & Co. KG on
page 57! This means: on no account may
conventional (non-rechargeable) batteries or
other battery types be used, otherwise serious
damage to health and property cannot be
ruled out, e.g. the outer casing of the batteries
could be destroyed or 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.
Notes:
– Only place the handset in the charging cra-
dle that is intended for it.
– If the handset has switched itself off
because the batteries are flat and if it is
then placed in the charging cradle, it will
switch itself on automatically.

7
First steps
Gigaset C450 IP LBA / IM-Nord EN / A31008-M1713-R201-1-7619 / starting.fm / 10.3.06
Version 4, 16.09.2005
Initial charging and discharging of
batteries
Battery charging is indicated in the top
right of the display by a flashing battery
icon e, Vor U. During handset
operation, the battery icon indicates the
charge status of the batteries (page 1).
The correct charge status can only be dis-
played when the batteries are first fully
charged and discharged through use.
¤To do this, leave the handset in the
charging cradle without interruption
until the battery icon stops flashing in
the display (approx. 13 hours).
¤Once the batteries are fully charged,
remove the handset from the charging
cradle and do not put it back again until
the batteries are fully discharged.
Please note:
uAlways repeat the charging and dis-
charging procedure if you remove the
batteries from the handset and insert
them in again.
uThe batteries may warm up as they are
charging. This is not dangerous.
uAfter a while the charge capacity of the
batteries will decrease for technical rea-
sons.
Setting the date and time
§Menu§ ¢Settings ¢Date/Time
~Enter the day, month and year
with 6 digits and press §OK§. Use
qto move between the fields.
~Enter hours and minutes with
4 digits (e.g. 0 7 1 5 for 07.15
hrs) and press §OK§. Use qto
move between the fields.
The date and time are shown in the hand-
set's idle display page 1.
Registering the handset to the base
station
Your handset is registered to the base sta-
tion by default.
Instructions on how to register further
handsets to the base station are given on
page 31.
Installing the base station
The base station is designed for use in
closed, dry rooms with a temperature
range of +5 °C to +45 °C.
¤Set up the base station at a central
point in the apartment or house.
Please note:
uNever expose the telephone to heat
sources, direct sunlight, other electrical
appliances.
uProtect your Gigaset from moisture,
dust, corrosive liquids and vapours.
Connecting the base station
In order to be able to make calls with your
phone via the fixed network and via VoIP,
you must connect the base station to
the fixed network and the Internet, see
Figure 1.
Note:
After the first battery charge and discharge,
you may replace your handset in the charging
cradle after every call.
Note:
You will find explanations for the symbols and
typographical conventions used in this user
guide in the appendix, page 53.

8
First steps
Gigaset C450 IP LBA / IM-Nord EN / A31008-M1713-R201-1-7619 / starting.fm / 10.3.06
Version 4, 16.09.2005
1 Internet connection:
Router with integrated modem or
router and modem or
switch and modem
2 Gigaset C450 IP base station
3 Gigaset C45 handset
4PCinLAN
Follow the steps in the order given below:
1. Connect the base station with the
phone connection
2. Connect the base station with the
mains power supply
3. Connect the base station with the rout-
er
Connecting the base station with the
fixed network and the mains power
supply
¤Please first connect the phone jack
and then the mains adapter, as shown
below.
1 Phone jack with phone cord
2 Underside of the base station
3 Mains adapter 230 V
Figure 1 Connecting the phone to the fixed network and the Internet
Internet
Fixed network
1
1
2
LAN
4
3
1
3
2

9
First steps
Gigaset C450 IP LBA / IM-Nord EN / A31008-M1713-R201-1-7619 / starting.fm / 10.3.06
Version 4, 16.09.2005
Please note:
uKeep the mains adapter plugged in at
all times for operation, as the phone
does not work without mains connec-
tion.
uIf you buy a replacement phone cord
from a retailer, ensure that the phone
jack is connected correctly.
You can now use your phone to make calls
via the fixed network and can be reached
at your fixed network number!
Connecting the base station with the
router
For Internet access you need a router or a
switch, connected to the Internet via a
modem (if necessary, this can be inte-
grated in the router).
1 Side view of the base station
2 Network plug (LAN) with network cable
3 Router (or switch) network plug
As soon as the cable connecting the
phone and router is plugged in, the paging
key lights up on the front of the base
station.
Making settings for VoIP
telephony
Precondition: You have registered with a
VoIP provider (e.g.via your PC) and set up
an account. The provider must support
the VoIP SIP standard.
The following phone settings are neces-
sary in order for you to use VoIP. You will
receive all information from your VoIP pro-
vider.
uYour user name with the VoIP provider,
if this is required by the VoIP provider
uYour registration name
uYour password with the VoIP provider
uVoIP provider general settings
The connection wizard will help you with
the settings.
For many VoIP providers, the connection
wizard downloads the general settings
directly from the Internet. If your provider
settings are not available for download,
you must enter the data manually via the
Web configurator (page 46).
Starting the connection wizard
Precondition: You have connected the
base station with the mains power supply
and the router.
Correct phone jack assignment
1unused
2unused
3a
4b
5unused
6unused
3
2
1
4
5
6
1
2
3
3
Note:
Your phone is preconfigured for dynamic
assignment of the IP address. In order for your
router to "recognise" the phone, dynamic IP
address assignment must also be activated on
the router, i.e. the router's DHCP server is acti-
vated. Turn to page 39 to find out how to
assign your phone a static IP address if neces-
sary.

10
First steps
Gigaset C450 IP LBA / IM-Nord EN / A31008-M1713-R201-1-7619 / starting.fm / 10.3.06
Version 4, 16.09.2005
If the handset battery is sufficiently
charged, the message key on the handset
will flash (around 20 minutes after you
have put the handset in the charging cra-
dle). Press the message key to start the
connection wizard.
If the connection wizard starts automati-
cally, a prompt will be displayed:
§Yes§ Press the display key to con-
firm the prompt.
Make the VoIP settings with the help of
the connection wizard.
Making VoIP settings
Precondition: The base station is con-
nected to the Internet, i.e. the base station
is connected to the router and the router
has an Internet connection (page 9).
Downloading VoIP provider data
qSelect country and press §OK§.
qSelect VoIP provider and press
§OK§.
The necessary data for your VoIP provider
is downloaded and saved on the phone.
Entering VoIP user data
Username:
If this is required by your pro-
vider, enter name and press
§OK§.
Authentication Name:
Enter name and press §OK§.
Authentication Password:
Enter password and press §OK§.
If the settings are correct and complete, a
message will be displayed to this effect.
You can now use your phone to make calls
via the fixed network and the Internet!
Callers can reach you on your fixed
network number and your VoIP number!
Belt clip and headset
By using a belt clip and headset (optional)
you can easily make your handset a con-
stant companion both inside the building
and in its immediate vicinity.
Attaching the belt clip
There are notches for attaching the belt
clip on the side of the handset at approxi-
mately the same height as the display.
¤Press the belt clip onto the back of the
handset so that the protrusions on the
belt clip engage with the notches.
The tongue of the belt clip must face the
battery compartment.
Connection socket for headset
You can use headsets with jack connec-
tors. The following models have been
tested and are therefore recommended:
HAMA Plantronics M40, MX100 and
MX150.
The transmission quality of other models
cannot be guaranteed.
Note:
The connection wizard will also start automat-
ically if you try to establish a connection via
the Internet, before you have made the neces-
sary settings.
You can also call up the connection wizard at
any time via the menu (page 38).
Note:
If the data for your VoIP provider is not availa-
ble for download, you can make the necessary
settings with the Web configurator (page 46).
Note:
To ensure that you can always be reached via
the Internet, the router should be permanently
connected to the Internet.

11
Menu trees
Gigaset C450 IP LBA / IM-Nord EN / A31008-M1713-R201-1-7619 / menuetree.fm / 10.3.06
Version 4, 16.09.2005
Menu trees
Phone menu
There are two ways to select a function:
Using number combinations ("shortcut")
¤To open the main menu, press §Menu§ with the handset in idle status.
¤Enter the number combination that is in front of the function in the menu tree.
¤Example: §Menu§ 422for "Set handset language".
Scrolling through the menus
¤To open the main menu, press §Menu§ with the handset in idle status.
¤Scroll to the function with the control key sand press §OK§.
1SMS
1-1 Write Message page 25
1-2 Incoming 00+00
1-3 Outgoing
1-6 Settings 1-6-1 Service Centres 1-6-1-1 Service Centre 1 page 28
… [to]
1-6-1-4 Service Centre 4
1-6-2 Register to Service
Centres
2Alarm Clock page 36
2-1 Activation
2-2 Wake up time
3Audio Settings
3-1 Ringer Volume page 35
3-2 Ringer Melody 3-2-1 External Calls page 35
3-2-2 Internal Calls
3-2-3 Alarm Clock
3-3 Advisory Tones page 36
3-4 Battery Low 3-4-1 Off page 36
3-4-2 On
3-4-3 During Call

12
Menu trees
Gigaset C450 IP LBA / IM-Nord EN / A31008-M1713-R201-1-7619 / menuetree.fm / 10.3.06
Version 4, 16.09.2005
4Settings
4-1 Date/Time page 7
4-2 Handset 4-2-1 Display 4-2-1-1 Screensaver page 34
4-2-1-2 Colour Scheme
4-2-1-3 Contrast
4-2-1-4 Backlight
4-2-2 Language page 34
4-2-3 Auto Answer page 34
4-2-4 Register Handset page 31
4-2-5 Reset Handset page 36
4-3 Base 4-3-1 Select Services
Only displayed if
Default Line Type =
fixed line is set.
4-3-1-2 Network Mailbox page 30
4-3-1-6 For All Calls page 19
4-3-1-7 Cancel Ringback page 20
4-3-2 System PIN
4-3-3 Base Reset
4-3-4 Additional Fea-
tures
4-3-4-1 Dialling Mode page 40
4-3-4-2 Recall page 41
4-3-4-3 Repeater Mode page 37
4-3-4-5 Additional Emer-
gency No.
page 37

13
Menu trees
Gigaset C450 IP LBA / IM-Nord EN / A31008-M1713-R201-1-7619 / menuetree.fm / 10.3.06
Version 4, 16.09.2005
Web configurator menu
4-3-6 VoIP Configura-
tion
4-3-6-1 Connection
Assistant
page 38
4-3-6-2 Select VoIP Pro-
vider
4-3-6-3 Username
4-3-6-4 Authentication
Name
4-3-6-5 Authentication
Password
4-3-6-6 IP Configuration
4-3-7 Default Line Type 4-3-7-1 IP page 37
4-3-7-2 fixed line
4-3-8 Firmware Update page 38
5Voice Mail page 30
5-1 Set Key 1 5-1-1 Network Mailbox
Home page 42
Settings
IP configuration page 45
Telephony
VoIP page 46
DTMF page 50
Emergency numbers page 50
Miscellaneous page 50,
page 51
Status page 52

14
Making calls
Gigaset C450 IP LBA / IM-Nord EN / A31008-M1713-R201-1-7619 / telephony.fm / 10.3.06
Version 4, 16.09.2005
Making calls
Making an external call
External calls are those that are made via
the public telephone network (fixed net-
work) or the Internet (VoIP). You deter-
mine what type of connection you want to
use when you dial.
If you want to call a fixed-network sub-
scriber via VoIP, you must always dial the
number with the dialling code.
~c Enter number/IP address and
briefly press/press and hold
the talk key.
The type of connection is determined by
whether you press the talk key c briefly or
press and hold it, i.e. you indicate whether
you want to make a call via the fixed net-
work or VoIP.
Selecting the connection type
A default connection is established on
your phone (fixed network or VoIP).
¤Press the talk key cbriefly if you want
to make the call via the default connec-
tion.
¤Press and hold the talk key cif you
want to make the call via the other con-
nection type.
Cancelling the dialling operation
You can cancel the dialling operation with
the end call key a.
Entering an IP address
If you are making a call via VoIP, you can
enter an IP address instead of a phone
number.
PPress the star key to separate
the parts of the IP address
(e.g. 149*246*122*28).
#If necessary, press the hash
key to attach the SIP port
number of the person you are
calling (page 74) to the IP
address (e.g.
149*246*122*28#5060).
Ending a call
aPress the end call key.
Accepting a call
The handset indicates an incoming call in
three ways: by ringing, by a display on the
screen and by the flashing handsfree key
d.
You can answer the call by:
¤Pressing the talk key c.
¤Pressing the handsfree key d.
If the handset is in the charging cradle and
the Auto Answer function is activated
(page 34), the handset will take a call
automatically when you lift it out of the
cradle.
If the ringtone is intrusive, press
§Menu§ Silent. You can accept the call so long
as it is displayed on the screen.
Note:
If there are at least two handsets registered to
your base station, you can use one to make a
call via the fixed network and the other to
make a call via the Internet (VoIP) at the same
time.
Note:
You can change the setting for the default con-
nection type (fixed network or VoIP)
(page 37).
Notes:
– Dialling with the directory (page 21) or last
number redial list (page 22) saves repeated
keying of phone numbers.
– You can assign a number from the directory
to a key for speed dialling (page 22).
– You can edit or add to any phone number
selected by means of quick dial or from the
directory and use it for the current call.

15
Making calls
Gigaset C450 IP LBA / IM-Nord EN / A31008-M1713-R201-1-7619 / telephony.fm / 10.3.06
Version 4, 16.09.2005
Calling Line Identification
When you receive a call from the Internet,
the caller's number and/or the name they
have specified is displayed on the screen.
When you receive a call from the fixed net-
work, the caller's number is displayed on
the screen if the following conditions are
met:
uYour fixed network provider supports
CLIP, CLI:
– CLI (Calling Line Identification): the
caller's number is transmitted
– CLIP (Calling Line Identification Pres-
entation): the caller's number is dis-
played
uYou have arranged CLIP with your net-
work provider.
uThe caller has arranged CLI with the
network provider.
If the phone number is identified and the
caller's number is saved in your directory,
the name will be displayed from the direc-
tory.
Call display
By means of the ringtone icon on the
screen, you can decide whether the call is
directed to your fixed network number or
to your VoIP number.
Calls to your fixed network number
1 Ringtone icon
2 Number or name of caller
Calls to your VoIP number
1 Ringtone icon
2 Number or name of caller
Display when Calling Line Identification is
withheld
For calls from the fixed network, the caller
can withhold calling line identification or
not request it. In this case the number is
not displayed. The following is displayed
in place of the number:
uExternal Call, if no number is trans-
mitted.
uWithheld, if the caller has withheld Call-
ing Line Identification.
uUnavailable, if the caller has not
arranged Calling Line Identification.
Handsfree talking
In handsfree mode, instead of holding the
handset to your ear you can put it down,
e.g. on the table in front of you, to allow
others to participate in the call.
Activating/deactivating handsfree
mode
Activating while dialling
~d Enter number and press
briefly/press and hold the
handsfree key to select the
connection type (page 14).
¤You should inform your caller before
you use the handsfree function so that
they know someone else is listening.
Switching between earpiece and
handsfree mode
dPress the handsfree key.
Switch handsfree on and off during a call.
If you wish to place the handset in the
charging cradle during a call:
¤Press and hold the handsfree key d
while placing the handset in the charg-
ing cradle. If the handsfree key ddoes
not light up, press the key again.
For how to adjust the loudspeaker vol-
ume, see page 34.
®
1234567890
Menu§
1
2
W
1234567890
Menu§
1
2

16
Operating the handset
Gigaset C450 IP LBA / IM-Nord EN / A31008-M1713-R201-1-7619 / telephony.fm / 10.3.06
Version 4, 16.09.2005
Muting the handset
You can deactivate the microphone in
your handset during an external call. The
other party hears a wait melody.
Muting the handset
§INT§ Press the display key.
Cancelling muting
§Back§ Press the display key.
Dialling the emergency number
If a number is saved as an emergency
number, it is automatically dialled via the
fixed network. The selected connection
type (Internet or fixed network) is irrele-
vant for dialling an entered emergency
number.
~c Enter the emergency number
and press the talk key.
Operating the handset
Switching the handset on/off
aPress and hold the end call
key.
You will hear the confirmation tone.
Activating/deactivating the
keypad lock
#Press and hold the hash key.
You will hear the confirmation tone. The
Øicon appears in the display when the
keypad lock is activated.
The keypad lock deactivates automatically
when you receive a call and activates
again after the call.
Control key
1 Control key
In this user guide, the side of the control
key that you must press in the given oper-
ating situation is shown in black (top, bot-
tom). Example: tfor "press the top of the
control key".
The control key has a number of different
functions:
When the handset is in idle status
sOpen the directory.
tAdjust the ringtone volume of
the handset (page 35).
In lists and menus
t/ sScroll up/down line by line.
In an input field
t/ sMove the cursor left or right.
During an external call
sOpen the directory.
tAdjust loudspeaker volume for
earpiece and handsfree mode.
Display keys
The current display functions are shown in
the bottom display line in reversed high-
lights. The function of the display keys
changes depending on the particular
operating situation.
Note:
The handset displays an advisory message if
you press a key by accident while the keypad
lock is on. To deactivate the keypad lock, press
and hold the hash key #.
§§§§INT§§§ §§Menu
1

17
Operating the handset
Gigaset C450 IP LBA / IM-Nord EN / A31008-M1713-R201-1-7619 / telephony.fm / 10.3.06
Version 4, 16.09.2005
Example:
1 Current display key functions
2 Display keys
The most important display symbols are:
§Back§ Go back one menu level or
cancel the operation.
§INT§ Make an internal call
(page 32).
§Menu§ Open the main menu or a con-
text-dependent menu.
§OK§ Confirm highlighted selection.
˜Delete key: deletes one char-
acter at a time from right to
left.
Returning to idle status
You wish to return to idle status from any-
where in the menu:
¤Press the end call key aand hold.
Or:
¤Do not press any key: after 2 minutes
the display will automatically revert to
idle status.
Changes that you have not confirmed/
saved by pressing §OK§ will be rejected.
For an example of the display in idle sta-
tus, page 1.
Menu guidance
Your telephone's functions are accessed
using a menu that has a number of levels.
Main menu (first menu level)
¤To open the main menu, press §Menu§
with the handset in idle status.
Accessing a function
¤Scroll to the function with the control
key qand press §OK§.
Or:
¤Enter the number that is in front of the
function in the menu tree (page 11).
The corresponding submenu (the next
menu level) is opened.
Submenus
The functions in the submenus are dis-
played as lists.
To access a function:
¤Scroll to the function with the control
key qand press §OK§.
Or:
¤Enter the number combination that is
in front of the function in the menu
tree (page 11).
A short press on the end call key areturns
you to the previous menu level / cancels
the operation.
2
1
§§§§INT§§§ §§Menu

18
Operating the handset
Gigaset C450 IP LBA / IM-Nord EN / A31008-M1713-R201-1-7619 / telephony.fm / 10.3.06
Version 4, 16.09.2005
Correcting incorrect entries
uNavigate to the incorrect input with the
control key if ûis displayed.
uPress ˜to delete the character to the
left of the cursor.
uInsert new character to the left of the
cursor.
uWhen entering the time and date etc.,
edit the flashing character.
You will find explanations for the symbols
and typographical conventions used in
this user guide in the appendix, page 53.

19
Network services
Gigaset C450 IP LBA / IM-Nord EN / A31008-M1713-R201-1-7619 / netservices_SAG.fm / 10.3.06
Version 4, 16.09.2005
Network services
The following network services can cur-
rently only be used for making calls via the
fixed network.
Network services are functions that your
network provider makes available to you.
You have to request these services from
your network provider.
¤If you require assistance, please con-
tact your network provider.
Making settings for all calls
If you have completed one of the follow-
ing procedures, a code is sent.
¤After confirmation from the telephone
network, press the end call key a.
Setting up call diversion
§Menu§ ¢Settings ¢Base ¢Select
Services ¢For All Calls ¢Call Divert
Setting up call forwarding
All Calls / No Answer / When Busy
Select and press §OK§.
On Select and press §OK§.
~Enter number and press §OK§.
Deactivating call forwarding
All Calls / No Answer / When Busy
Off Select and press §OK§.
Call forwarding is deactivated.
Activating/deactivating call waiting
When call waiting is activated, the caller
will hear the ringing tone if you are
already making a call. This call is
announced acoustically and visually on
your handset screen.
Accepting/rejecting call waiting, see
page 20.
§Menu§ ¢Settings ¢Base ¢Select
Services ¢For All Calls ¢Call Waiting
On / Off Select and press §OK§.
Functions during a call
Initiating ringback
You hear the busy tone.
§Menu§ ¢Ringback
aPress the end call key.
Consultation
During a call:
§Menu§ ¢External Call
~Enter a number or copy it from
the directory and press §OK§.
You have the following options:
uToggling:
¤Use qto toggle between the partic-
ipants.
– End call with active participant:
§Menu§ End Active Call.
uConference call:
– Talk to both participants:
§Menu§ Conference Call.
– End conference call (toggle):
§Menu§ End Conference.
– End call with both participants: Press
the end call key a.
uDiverting call:
– Connecting two external partici-
pants: §Menu§ Call Transfer.
You can also connect the participants
with each other before the second par-
ticipant answers.
Note:
The Settings £Base £Select Services menu is
only displayed if you have set the fixed net-
work as your default connection (page 37).
Note:
After a few seconds, the number selected for a
consultation call is saved in the last number
redial list.