Talkswitch 24-CA User Manual page 30

Public WAN IP Address
Type of public WAN IP address for Internet Connection:
Select dynamic if your public IP address is a dynamic IP address from your
Internet Service Provider (ISP). If you are unsure if your connection is
dynamic or static, leave this option set to 'dynamic' . When set to dynamic,
TalkSwitch checks your public IP address every 5 minutes. If it changes,
TalkSwitch automatically updates to the correct information to manage VoIP
calls properly.
Current public WAN IP address
When you select the public IP address type 'dynamic', this entry shows the
current public IP address and is not editable. If the public IP address is
'static', you enter it here.
Public WAN IP address-checker server name
When you select the public IP address type 'dynamic', this entry shows the
current server name for the IP checker utility. If the public IP address type is
'static', no information is required. The default location is
checkip.talkswitch.com. There is an IP checker application running on the
server that responds to requests from TalkSwitch units for the public IP
address at its location.
Fully Qualified Domain Name
A Fully Qualified Domain Name (FQDN) is required if this location acts as the
SIP Server and does not have a static public IP address from your service
provider. You can obtain FQDNs for free at www.dyndns.org. Download one
of the applications specified on the site. It needs to run on a PC connected to
the same LAN to update the DNS servers.
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