Siemens Gigaset A580 IP User Manual page 123

Web configurator – Setting the phone using a PC
STUN refresh time
Enter the time intervals at which the phone should repeat the registration
with the STUN server. The repeat is required so that the entry of the phone 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
The default is 240 seconds.
If you enter 0 seconds, the registration will not be repeated periodically.
NAT refresh time
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 need to change the preconfigured value for the
refresh time.
Outbound proxy mode
Specify when the outbound proxy should be used.
Always
All signalling and voice data sent by the phone is sent to the outbound
proxy.
Auto
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
the outbound proxy is always used.
Never
The outbound proxy is not used.
If you do not make an entry in the
independently of the selected mode, as with Never.
Outbound proxy
Enter the (fully qualified) DNS name or the IP address of your provider's out-
bound proxy (maximum 74 characters).
Please note
With many providers, the outbound proxy is identical to the SIP proxy.
Outbound proxy port
Enter the number of the communication port used by the outbound proxy.
The default port is 5060.
122
STUN refresh
= or have not entered a STUN server,
STUN enabled No
Outbound proxy
time.
field, the phone behaves
NAT