Siemens C450 IP User Manual

Gigaset C450 IP / IM-Nord EN / A31008-M1713-R201-3-7643 / starting.fm / 01.03.2007

Ve

rs

ion 4,

 16

.09.

2005

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 following phone settings are neces-

sary in order for you to use VoIP. You will 

receive all information from your VoIP pro-

vider.
u Your user name with the VoIP provider, 

if this is required by the VoIP provider

u Your registration name
u Your password with the VoIP provider
u VoIP provider general settings
The connection wizard will help you with 

the settings. 

Precondition: The base station is con-

nected to the mains power supply and the 

router. Your router is connected to the 

Internet.
Tip: If VoIP (

 is activated as the default 

connection for your phone (default set-

ting page 25), the phone will attempt to 

make a direct connection to the server 

belonging to your VoIP provider after the 

connection wizard is closed. If incorrect/

incomplete information means that the 

connection cannot be made, messages 

will be displayed (page 11). 

Once 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: 

Press the display key to start 

the connection wizard.

~

Enter the system PIN of the 

base station (the default is 

0000) and press 

.

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 

 is displayed. 

After changing the display:
q

Select country and press 

. 

 is displayed.

After changing the display:
q

Select VoIP provider and press 

. 

The necessary data for your VoIP provider 

is downloaded and saved on the phone.

Your phone is preconfigured for dynamic 

assignment of the IP address. In order for your 

router to "recognise" the phone, dynamic IP 

address assignment (the router's DHCP server) 

must also be activated on the router.

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 15).

If the data for your VoIP provider is not avai-

lable for download, you must make the neces-

sary settings with the Web configurator at a 

later stage (page 26). 
Press the display key 

 to carry out the fol-

lowing steps of the connection wizard 

(see "Entering VoIP user data").