94
Web configurator
Gigaset S450 IP LBA / IM-Nord_en / A31008-M1713-R221-2-7619 / web_server.fm / 28.3.07
Ve
rs
ion 4,
16
.09.
2005
Defining local communication
ports for VoIP
¤
Open the following Web page:
Settings
¢
Telephony
¢
Advanced Set-
tings
.
In the
Listen Ports for VoIP Connections
area,
specify which local ports the telephone is
to use for VoIP telephony. The ports must
not be used by any other subscriber in the
LAN.
SIP port
Specify the local communication port
that the phone should use to send and
receive signalling data. Specify a
number between 1024 and 49152.
The default port number for SIP signal-
ling is 5060.
RTP port
Specify the local communication port
that the phone should use to send and
receive voice data. Enter an
even
number between 1024 and 49152. The
port number must
not
be the same as
the port number in the
SIP port
field.
If you enter an odd number, the even
number just below it will be set
(e.g. if you enter 5003, 5002 is set).
The default port number for voice
transmission is 5004.
Use random ports
Click on the
Yes
option if you do not
want the phone to use fixed ports for
SIP port
and
RTP port
, but rather to use
any free ports.
The use of random ports makes sense if
you want several phones to be oper-
ated on the same router with NAT. The
phones must then use different ports
so that the router's NAT is only able to
forward incoming calls and voice data
to one (the intended) phone.
If you click on
No
, the phone will use
the ports specified in
SIP port
and
RTP
port
.
¤
Now click on
Set
to save your settings.
Defining dialling plans
You can define user-specific dialling plans
for your phone.
¤
Open the following Web page:
Settings
¢
Telephony
¢
Dialing Plans
.
Setting Area Code Predialling
In VoIP calls you must generally always
dial the area code – even for local calls.
You can save the annoying need to dial the
area code for local calls by activating the
Area Code Predialling
function. In VoIP calls,
the area code entered is then prefixed to
all numbers that do not start with 0 – even
when dialling numbers from the directory
and other lists.
¤
Enter your area code in the
Area Code
field, e.g. 089.
¤
Click on the
Yes
option next to
Predial
area code for local calls through VoIP
to
activate the function.
If you click on
No
you must enter the
area code even for local calls via VoIP.
Numbers in the directory must always
contain the area code for dialling via
VoIP.
¤
Click on
Set
to save the settings.
Please note:
The settings for DTMF signalling apply to all
VoIP connections (VoIP accounts).
Please note
that if the option is activated, the
area code is prefixed to all phone numbers that
do not start with 0 and are dialled via VoIP. This
is especially the case for numbers of the net-
work answer machine (page 71) and, if the
Emergency calls always via fixed line
option is
deactivated (see below), for emergency num-
bers.
