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
All rights reserved. Subject to availability.
Rights of modification reserved.
www.siemens.com/gigaset
© Siemens Home and Office Communication Devices GmbH & Co. KG 2006
2007

1
The handset at a glance
Gigaset C450 IP / IRL / A31008-M1713-V101-3-7619 / overview.fm / 7.3.07
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 22)
4Display keys (page 22)
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 22)
Toggle between upper/lower case letters
and digits for text entry (page 78)
8Alarm clock key (page 45)
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
Ringer tones on/off (press and hold in idle
status)
12 Connection socket for headset (page 14)
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 41)
Press and hold: set base station to registra-
tion mode (page 40)
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 / IRL / A31008-M1713-V101-3-7619 / C450IP_laenderIVZ.fm / 7.3.07
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 . . . . . . . . . . . . . . . . . . . . . 6
First steps . . . . . . . . . . . . . . . . . . . . 6
Pack contents . . . . . . . . . . . . . . . . . . . . 6
Setting up the handset for use . . . . . . . 6
Installing the base station . . . . . . . . . . 8
Connecting the base station . . . . . . . . 9
Making settings for VoIP telephony . . 11
Belt clip and headset . . . . . . . . . . . . . 14
Menu trees . . . . . . . . . . . . . . . . . . 15
Phone menu . . . . . . . . . . . . . . . . . . . . 15
Web configurator menu . . . . . . . . . . . 18
Making calls with VoIP and
the fixed network . . . . . . . . . . . . 19
Making an external call . . . . . . . . . . . 19
Ending a call . . . . . . . . . . . . . . . . . . . . 19
Accepting a call . . . . . . . . . . . . . . . . . 20
Calling Line Identification . . . . . . . . . 20
Handsfree talking . . . . . . . . . . . . . . . . 21
Muting the handset . . . . . . . . . . . . . . 21
Dialling the emergency number . . . . 21
Operating the handset . . . . . . . . 22
Switching the handset on/off . . . . . . . 22
Activating/deactivating the
keypad lock . . . . . . . . . . . . . . . . . . . . . 22
Control key . . . . . . . . . . . . . . . . . . . . 22
Display keys . . . . . . . . . . . . . . . . . . . . 22
Returning to idle status . . . . . . . . . . . 23
Menu guidance . . . . . . . . . . . . . . . . . 23
Correcting incorrect entries . . . . . . . . 23
VoIP telephony via the
Gigaset.net . . . . . . . . . . . . . . . . . 24
Search subscribers in
Gigaset.net directory . . . . . . . . . . . . . 24
Calling a Gigaset.net subscriber . . . . . 26
Network services –
VoIP . . . . . . . . . . . . . . . . . . . . . . . 27
Settings for all calls . . . . . . . . . . . . . . . 27
Network services –
fixed network . . . . . . . . . . . . . . . 27
Withholding your number for the
next call . . . . . . . . . . . . . . . . . . . . . . . . 27
Making settings for all calls . . . . . . . . 28
Functions during a call . . . . . . . . . . . . 28
Functions after a call . . . . . . . . . . . . . . 29
Using the directory
and lists . . . . . . . . . . . . . . . . . . . 30
Directory . . . . . . . . . . . . . . . . . . . . . . . 30
Last number redial list . . . . . . . . . . . . 32
Opening lists with the
message key . . . . . . . . . . . . . . . . . . . . 32
Making cost-effective calls . . . . 33
Displaying the call duration . . . . . . . . 33
SMS (text messages) . . . . . . . . . 34
Registering for SMS using the
registration wizard . . . . . . . . . . . . . . . 34
Writing/sending an SMS . . . . . . . . . . . 35
Receiving an SMS . . . . . . . . . . . . . . . . 36
Setting SMS centre . . . . . . . . . . . . . . . 37
SMS on a PABX . . . . . . . . . . . . . . . . . . 37
Activating/deactivating the SMS
function . . . . . . . . . . . . . . . . . . . . . . . . 37
SMS troubleshooting . . . . . . . . . . . . . 38
Using the network mailbox . . . 39
Configuring the network mailbox
for fast access . . . . . . . . . . . . . . . . . . . 39
Viewing the network mailbox
message . . . . . . . . . . . . . . . . . . . . . . . 39
Using several handsets . . . . . . . 40
Registering handsets . . . . . . . . . . . . . . 40
De-registering handsets . . . . . . . . . . . 41
Changing a handset's internal
number . . . . . . . . . . . . . . . . . . . . . . . . 41
Changing the name of a handset . . . . 41
Locating a handset ("Paging") . . . . . . . 41
Making internal calls . . . . . . . . . . . . . . 42

3
Contents
Gigaset C450 IP / IRL / A31008-M1713-V101-3-7619 / C450IP_laenderIVZ.fm / 7.3.07
Version 4, 16.09.2005
Handset settings . . . . . . . . . . . . . 43
Change display language . . . . . . . . . . 43
Setting the display . . . . . . . . . . . . . . . 43
Activating/deactivating auto-answer . 43
Adjusting the loudspeaker volume . . 43
Changing ringer tones . . . . . . . . . . . . 44
Advisory tones . . . . . . . . . . . . . . . . . . 44
Using the handset as an
alarm clock . . . . . . . . . . . . . . . . . . . . . 45
Restoring the handset default
settings . . . . . . . . . . . . . . . . . . . . . . . . 45
Base station settings . . . . . . . . . . 46
Restoring the base station to
factory settings . . . . . . . . . . . . . . . . . . 46
Activating/deactivating repeater
mode . . . . . . . . . . . . . . . . . . . . . . . . . 46
Set default connection . . . . . . . . . . . . 47
Updating the base station firmware . 47
Making VoIP settings . . . . . . . . . 48
Using the connection wizard . . . . . . . 48
Changing settings without the
connection wizard . . . . . . . . . . . . . . . 48
Setting the phone's IP address
in LAN . . . . . . . . . . . . . . . . . . . . . . . . . 49
Activating/deactivating display
of VoIP status codes . . . . . . . . . . . . . . 50
Check the base station
MAC address . . . . . . . . . . . . . . . . . . . . 50
Operating the base station
on the PABX . . . . . . . . . . . . . . . . . 51
Changing the dialling mode . . . . . . . . 51
Setting the flash time . . . . . . . . . . . . . 51
Setting pauses . . . . . . . . . . . . . . . . . . 51
Switching temporarily to tone
dialling (DTMF) . . . . . . . . . . . . . . . . . . 51
Web configurator . . . . . . . . . . . . 52
Configuring the phone via your PC . . 52
Connecting your PC to the Web
configurator . . . . . . . . . . . . . . . . . . . . 52
Registering, setting the Web
configurator language . . . . . . . . . . . . 52
De-registering . . . . . . . . . . . . . . . . . . . 53
Structure of the Web pages . . . . . . . . 53
Opening Web pages . . . . . . . . . . . . . . 55
Setting phone with
Web configurator . . . . . . . . . . . . . . . . 55
IP Configuration . . . . . . . . . . . . . . . . . 55
Configuring telephone connections . . 57
Setting DTMF signalling for VoIP . . . . 64
Defining local communication
ports for VoIP . . . . . . . . . . . . . . . . . . . 65
Defining dialling plans . . . . . . . . . . . . 65
Specifying the server for
firmware updates and
starting the update . . . . . . . . . . . . . . . 66
Activating/deactivating the
automatic version check . . . . . . . . . . . 67
Activating VoIP status message
display . . . . . . . . . . . . . . . . . . . . . . . . . 67
Checking status information via your
phone . . . . . . . . . . . . . . . . . . . . . . . . . 68
Appendix . . . . . . . . . . . . . . . . . . 69
Symbols and typographical
conventions used . . . . . . . . . . . . . . . . 69
Care . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Contact with liquid . . . . . . . . . . . . . . . 69
Questions and answers . . . . . . . . . . . . 70
Voice quality and infrastructure . . . . . 74
Searching for service information . . . 74
Service (Customer Care) . . . . . . . . . . . 75
Authorisation . . . . . . . . . . . . . . . . . . . 75
Guarantee certificate . . . . . . . . . . . . . 76
Specifications . . . . . . . . . . . . . . . . . . . 77
Writing and editing a text message . . 78
Gigaset C450 IP – Free software . . . . . 79
Accessories . . . . . . . . . . . . . . . . . 86
Glossary . . . . . . . . . . . . . . . . . . . 87
Index . . . . . . . . . . . . . . . . . . . . . . 97

4
Safety precautions
Gigaset C450 IP / IRL / A31008-M1713-V101-3-7619 / security.fm / 7.3.07
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 77) 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
station are not splashproof (page 69).
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 poten-
tial 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.
Please note:
When the keypad lock is active you cannot even call emergency numbers!
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 / IRL / A31008-M1713-V101-3-7619 / starting.fm / 7.3.07
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.
And your phone can do much more
besides:
uPress a button each time you make a
call to indicate whether you want to
make a call via the fixed network or via
the Internet (page 19).
uRegister up to six handsets on your
base station. Your base station allows
you to use one handset to make a call
via the fixed network and another to
make a call via the Internet at the same
time.
uUse the Gigaset.net for VoIP calls. Con-
nect your phone to the power supply
and the Internet, and enjoy free phone
calls on the Gigaset.net – no need to
make any other settings (page 24).
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 11).
uIf necessary, establish any further
VoIP settings on a PC. The phone has a
Web interface (Web configurator) that
can be accessed via your PC's Web
browser (page 52).
uAssign your own password (system
PIN) to protect your device and the Web
configurator from unauthorised access
(page 46).
uSend and receive SMS messages via the
fixed network (page 34).
uSave 100 phone numbers on your
handset (page 30).
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 31).
uKeep your hands free when making a
call. Use the handsfree function on
your handset (page 21) or use the con-
venient headset to make calls (acces-
sory: not included in the scope of deliv-
ery).
uMake sure your phone is always up-to-
date. Keep yourself informed about
firmware updates on the Internet and
load them onto your phone (page 47).
uUse your handset as an alarm clock
(page 45).
Have fun using your new telephone!
Your Gigaset C450 IP has a protected operating
system that offers increased security against
viruses from the Internet.

6
VoIP – Making calls via the Internet
Gigaset C450 IP / IRL / A31008-M1713-V101-3-7619 / starting.fm / 7.3.07
Version 4, 16.09.2005
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.
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).
Caution:
Use only the rechargeable batteries recom-
mended by Siemens Home and Office
Communication Devices GmbH & Co. KG on
page 77! 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.

7
First steps
Gigaset C450 IP / IRL / A31008-M1713-V101-3-7619 / starting.fm / 7.3.07
Version 4, 16.09.2005
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 70.
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.
Please note:
– 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.
Please note:
After the first battery charge and discharge,
you may replace your handset in the charging
cradle after every call.
Please note:
You will find explanations for the symbols and
typographical conventions used in this user
guide in the appendix, page 69.

8
First steps
Gigaset C450 IP / IRL / A31008-M1713-V101-3-7619 / starting.fm / 7.3.07
Version 4, 16.09.2005
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 40.
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.
¤Place or hang the base station in a cen-
tral position in your flat 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.

9
First steps
Gigaset C450 IP / IRL / A31008-M1713-V101-3-7619 / starting.fm / 7.3.07
Version 4, 16.09.2005
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.
1 Internet connection:
Router with integrated modem or
router 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
router
Figure 1 Connecting the phone to the fixed network and the Internet
Internet
Fixed network
1
1
2
LAN
4
3

10
First steps
Gigaset C450 IP / IRL / A31008-M1713-V101-3-7619 / starting.fm / 7.3.07
Version 4, 16.09.2005
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
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,
connected to the Internet via a modem
(if necessary, this can be integrated in the
router).
1 Side view of the base station
2 Network plug (LAN) with network cable
3 Router 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.
You are now able to establish VoIP
connections within the Gigaset.net
(page 24).
Correct phone jack assignment
1unused
2unused
3a
4b
5unused
6unused
1
3
2
3
2
1
4
5
6
1
2
3
3

11
First steps
Gigaset C450 IP / IRL / A31008-M1713-V101-3-7619 / starting.fm / 7.3.07
Version 4, 16.09.2005
Making settings for VoIP
telephony
Before you can use the Internet (VoIP) to
phone any other users on the Internet, the
fixed network or the mobile phone net-
work, you need the services of a VoIP pro-
vider who supports the VoIP SIP standard.
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.
Starting the connection wizard
Precondition: The base station is con-
nected to the mains power supply and a
router. Your router is connected to the
Internet.
Tip: If VoIP (IP) is activated as the default
connection for your phone (default set-
ting see page 47), the phone will attempt
to make a direct connection to the server
belonging to your VoIP provider after the
connection assistant is closed. If incorrect/
incomplete information means that the
connection cannot be established, mes-
sages will be displayed (page 13).
If the handset battery is sufficiently
charged, the message key f on the hand-
set will flash (around 20 minutes after you
have put the handset in the charging cra-
dle).
¤Press the message key f.
You will see the following display:
§Yes§ Press the display key to start
the connection assistant.
~Enter the system PIN of the
base station (the default is
0000) and press §OK§.
If you press §No§, the procedure that fol-
lows is described under "Entering
names in the Gigaset.net directory" on
page 12.
Please 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 49 to find out how to
assign your phone a static IP address if neces-
sary.
Please 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 48).
Start VoIP
Connection
Assistant?
§§§§No§§§§ §§§§§Yes§§§§

12
First steps
Gigaset C450 IP / IRL / A31008-M1713-V101-3-7619 / starting.fm / 7.3.07
Version 4, 16.09.2005
Downloading VoIP provider data
The phone establishes a connection with
the Siemens server on the Internet. Pro-
files with general access data for various
VoIP providers can be downloaded here.
The message Select country is displayed.
After changing the display:
qSelect country and press §OK§.
Select provider is displayed.
After changing the display:
qSelect VoIP provider and press
§OK§.
The necessary data for your VoIP provider
is downloaded and saved on the phone.
Entering VoIP user data
Depending on the VoIP provider, the
following information will be requested
in sequence:
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§.
Entering names in the Gigaset.net
directory
With Gigaset.net you can call other
Gigaset.net users directly over the Internet
free of charge, without setting up an
account with a VoIP provider and without
making any further settings. You can find
Gigaset.net subscribers by carrying out a
name search in the Gigaset.net directory
(page 24).
The following appears in the handset's dis-
play:
§Yes§ Press the display key if you
want to enter yourself in the
Gigaset.net directory. If you
press §No§, the procedure that
follows is described under
"Completing the VoIP set-
tings".
Own Gigaset.net name:
Enter the name that you
would like to be listed under in
the Gigaset directory and
press §OK§. The name may con-
tain up to 25 characters.
A connection to the Gigaset.net server is
established.
If there is already an entry under this
name, you receive a message to this effect
and you will be asked to enter a name
again.
If an entry in the Gigaset.net directory is
successful, the message "Name added to
Gigaset.net!" is displayed briefly.
Please note:
If the data for your VoIP provider is not offered
for download, you must make the necessary
settings with the Web configurator at a later
stage (page 58).
Press the display key §Back§. You can then con-
duct the following steps with the connection
assistant (see "Entering VoIP user data").
Please note:
Please note when making these entries that
the VoIP user data is case sensitive. If neces-
sary, press and hold the #key to switch
between upper and lower case and digits
If the attempt to create the entry fails
(e.g. because the phone is not connected to
the Internet), a message to this effect is dis-
played briefly, see page 13. You can then cre-
ate the entry later via the Gigaset.net directory
(page 24).
Start
Gigaset.net
assistant?
§§§§No§§§§ §§§§§Yes§§§§

13
First steps
Gigaset C450 IP / IRL / A31008-M1713-V101-3-7619 / starting.fm / 7.3.07
Version 4, 16.09.2005
Completing the VoIP settings
Once all the necessary entries have been
made, the handset reverts to idle status.
If all the settings are correct and if the
phone can establish a connection to the
VoIP server, then the internal name of the
handset will be displayed:
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!
No connection to the Internet/VoIP server
If one of the following messages is dis-
played instead of the internal name after
the connection assistant is closed, then
either a fault has occurred or your infor-
mation was incomplete:
Server not accessible!
The phone has no connection to the Inter-
net.
¤Check the cable connection between
the base station and the router (the
LED on the base station must light up)
and the connection between the router
and the modem/Internet connection.
¤Check whether the phone is connected
to the LAN.
– It may not have been possible to
dynamically assign an IP address to
the phone
or
– You have assigned a static IP address
to the phone that has either already
been assigned to another LAN sub-
scriber or does not belong to the
router's address block.
¤Find the IP address using the hand-
set menu:
§Menu§ ¢Settings ¢Base
¢Local Network ¢(enter system
PIN) ¢IP Address
¤Start the Web configurator with the
IP address (page 52).
¤If no connection can be established:
change the settings on the router
(activate DHCP server) or the
phone's (static) IP address.
SIP registration failed!
uYour personal data for registering with
the VoIP provider may have been
entered incompletely or incorrectly.
¤Check your entries for Username,
Authentication Name and Authentica-
tion Password. In particular, check
your use of upper and lower case.
To do this, open the following menu
on your handset:
§Menu§ ¢Settings ¢Base
¢Telephony ¢VoIP
uThe server address for the VoIP server
has not yet been entered, or has been
entered incorrectly.
¤Start the Web configurator.
¤Open Settings ¢Telephony
¢VoIP Web page.
¤Edit the server address where neces-
sary.
Please note:
To ensure that you can always be reached via
the Internet, the router should be permanently
connected to the Internet.
¨V
INT 1
11.07.06 11:56
§§§§§§INT§§§§§ §§§§Menu§
Please note:
If port forwarding is activated on your router
for the ports that have been registered as the
SIP port (Standard 5060) and the RTP port
(Standard 5004), then it makes sense to switch
off DHCP and assign the phone a static IP
address (otherwise you may not be able to
hear the other party during VoIP calls), see
page 49.
Please note that the IP address and subnet
mask depend on the router's address block.
You must also enter the default gateway and
DNS server via the Web configurator
(page 55). The IP address for the router is gen-
erally entered here.

14
First steps
Gigaset C450 IP / IRL / A31008-M1713-V101-3-7619 / starting.fm / 7.3.07
Version 4, 16.09.2005
You will find other messages and possible
measures in the Questions and answers
section on page 70.
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.

15
Menu trees
Gigaset C450 IP / IRL / A31008-M1713-V101-3-7619 / menuetree.fm / 7.3.07
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 35
1-2 Incoming 00+00
1-3 Outgoing
1-6 Settings 1-6-1 Service Centres 1-6-1-1 Service Centre 1 page 37
… [to]
1-6-1-4 Service Centre 4
1-6-3 Register to Service
Centres
2Alarm Clock page 45
2-1 Activation
2-2 Wake up time
3Audio Settings
3-1 Ringer Volume page 44
3-2 Ringer Melody 3-2-1 External Calls page 44
3-2-2 Internal Calls
3-2-3 Alarm Clock
3-3 Advisory Tones page 45
3-4 Battery Low 3-4-1 Off page 45
3-4-2 On
3-4-3 During Call

16
Menu trees
Gigaset C450 IP / IRL / A31008-M1713-V101-3-7619 / menuetree.fm / 7.3.07
Version 4, 16.09.2005
4Settings
4-1 Date/Time page 8
4-2 Handset 4-2-1 Display 4-2-1-1 Screensaver page 43
4-2-1-2 Colour Scheme
4-2-1-3 Contrast
4-2-1-4 Backlight
4-2-2 Language page 43
4-2-3 Auto Answer page 43
4-2-4 Register Handset page 40
4-2-5 Reset Handset page 45
4-3 Base 4-3-2 Music on hold
4-3-3 System PIN
4-3-4 Base Reset
4-3-5 Additional Fea-
tures
4-3-5-1 Repeater Mode page 46
4-3-6 Local Network 4-3-6-1 dynamic
IP address
4-3-6-2 IP Address
4-3-6-3 Subnet Mask
4-3-6-4 DNS Server
4-3-6-5 Default Gateway
4-3-7 Telephony Submenu see page 17
4-3-8 Firmware Update page 47
5Voice Mail page 39
5-1 Set Key 1 5-1-1 Network Mailbox

17
Menu trees
Gigaset C450 IP / IRL / A31008-M1713-V101-3-7619 / menuetree.fm / 7.3.07
Version 4, 16.09.2005
* Please note: Following a firmware update, the network services are only displayed
if you de-register and then reregister your handset.
6Select Services *
6-1 VoIP 6-1-6 For All Calls 6-1-6-1 Call Divert page 27
6-2 Fixed line 6-2-3 Withhold Number page 27
6-2-6 For All Calls 6-2-6-1 Call Divert page 28
6-2-6-3 Call Waiting page 28
6-2-7 Cancel Ringback page 29
Submenu "Settings ¢Base ¢Telephony" 4-3-7
4-3-7 Telephony 4-3-7-1 Default Line Type 4-3-7-1-1 IP page 47
4-3-7-1-2 fixed line
4-3-7-2 Connection Assistant page 48
4-3-7-6 Fixed line 4-3-7-6-1 Dialling Mode page 51
4-3-7-6-2 Recall page 51
4-3-7-7 VoIP 4-3-7-7-1 Status on HS
4-3-7-7-2 Select VoIP Pro-
vider
4-3-7-7-3 Username
4-3-7-7-4 Authentication
Name
4-3-7-7-5 Authentication
Password

18
Menu trees
Gigaset C450 IP / IRL / A31008-M1713-V101-3-7619 / menuetree.fm / 7.3.07
Version 4, 16.09.2005
Web configurator menu
Please note:
For Gigaset C450IP base stations manufactured before June 2006, "VoIP" is displayed instead of "Con-
nections" after a firmware update.
Home page 52
Settings
IP Configuration page 55
Telephony
Connections page 58
Dialing Plans page 65
Advanced Settings page 64
Miscellaneous page 66,
page 67
Status
Device page 68

19
Making calls with VoIP and the fixed network
Gigaset C450 IP / IRL / A31008-M1713-V101-3-7619 / telephony.fm / 7.3.07
Version 4, 16.09.2005
Making calls with VoIP and
the fixed network
Making an external call
External calls are calls made via the public
telephone network (fixed network) or via
the Internet (VoIP). You can use the talk
key c when dialling to select what type of
connection you want to use (fixed net-
work or VoIP). One particular connection
type is set as the default connection for
your phone. The default is VoIP (for how to
change the setting if required, see
page 47).
¤Enter the required number/IP address
using the keypad.
¤Press the talk key cbriefly if you want
to make the call via the default connec-
tion.
Or:
¤Press and hold the talk key cif you
want to make a phone call via the other
connection type (the non-default con-
nection).
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 95) to the
IP address (e.g.
149*246*122*28#5060).
Ending a call
aPress the end call key.
Please 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.
– If you use a different GAP-compatible hand-
set to the Gigaset C45, all calls will be made
via the default connection, even if you
press and hold the talk key c. If you want
to use the non-default connection to make
a call, enter a star (*) at the end of the
number.
– If you use VoIP to make a call to the fixed
network, you may also have to dial the area
code for local calls (depending on the VoIP
provider). You can avoid this by entering
the area code in the configuration of the
base station (via the Web configurator, see
page 65). It will then be inserted automati-
cally for local calls.
Please note:
– Dialling with the directory (page 30) or last
number redial list (page 32) saves repeated
keying of phone numbers.
– You can assign a number from the directory
to a key for speed dialling (page 31).
– 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.