Operation Manual

Gigaset DE700 IP PRO / en / A31008-M2211-R101-5-7619 / web_configurator.fm / 13.09.2012
PRO Version 3, 30.05.2012
111
Web configurator – configuring the phone on a PC
Network provider data
The phone needs to know its public address in order to receive caller voice data.
The SIP protocol recognises the following options:
u The phone requests the public address from a STUN server on the Internet (Simple Trans-
versal of UDP over NAT). STUN can only be used with asymmetric NATs and non-blocking
firewalls.
u The phone does not direct the connection request to the SIP proxy but to an outbound
proxy on the Internet that supplies the data packets along with the public address.
The STUN server and outbound proxy are used alternately to work around the NAT/firewall in
the router/gateway.
¤ Enter the required data for the STUN server or outbound proxy:
STUN enabled
Select Yes if you want your phone to use STUN as soon as it is used on a router with asym-
metric NAT.
STUN Server Address
Enter the DNS name or the IP address of the STUN server on the Internet. If you have
selected Ye s in the STUN enabled field, then you must complete this field.
STUN Server Port
Enter the number of the communication port on the STUN server.
The default port is 3478.
STUN Refresh Time [sec]
Enter the time intervals (seconds) at which the phone should repeat the registration with
the STUN server. The repeat is required so that the phone's entry in the tables of the STUN
server is retained. The repeat will be carried out for all activated VoIP phone numbers. Ask
your VoIP provider for the STUN refresh time if necessary. Default setting: 30 seconds.
NAT Refresh Time [sec]
Specify the intervals at which you want the phone to update its entry in the NAT routing
table. Specify an interval in seconds that is a little shorter than the NAT session timeout. As
a rule you should not change the default value for the NAT update. Default setting: 20 sec-
onds.
Outbound Proxy Mode
Specify when the outbound proxy should be used.
If you leave the Outbound Server Address field empty, the phone does not respond to the
selected mode and operates as if Never were selected.
Always All signalling and voice data sent by the phone is sent to the outbound
proxy.
Automati-
cally
Data sent by the phone is only sent to the outbound proxy when the phone
is connected to a router with symmetric NAT or a blocking firewall. If the
phone is behind an asymmetric NAT, the STUN server is used. If you have set
STUN enabled to No, or if you have not entered a STUN server, the out-
bound proxy will be used in all cases.
Never The outbound proxy is not used.