Siemens C450 IP User Manual

Page 13

First Steps

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

ion 4,

.09.

2005

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 26).

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!

Your 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

. Particularly check your

use of upper and lower case.

To do this, open the following menu

on your handset:

§Menu§

Settings

Base

Telephony

VoIP

The 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:

If port forwarding is activated on your router

for the ports that have been registered as the

SIP port (Standard 5600) 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 25.
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 26). The IP address for the router is gen-

erally entered here.