Talkswitch CT.TS005.001101.UK - Manual (Page 29)

T A L K S W I T C H C O N F I G U R A T I O N 2 1
System IP Settings section
If you have a DHCP (Dynamic Host Configuration Protocol) server and your
TalkSwitch unit(s) is (are) connected to the LAN, all fields are filled with the
correct information.
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.