Talkswitch 48-CA User Manual page 35

Subnet Mask:
Enter the subnet mask for the LAN. If you have a DHCP server running, then this
information will automatically be obtained.
Default Gateway:
Enter the IP address of the gateway on your network. A gateway is a hardware
device (such as a router / NAT) that connects the office network to the Internet.
The gateway allows you to share a DSL, cable modem or other Internet connection
with all of the computers and IP devices in your office network.
Preferred DNS Server:
Enter the preferred DNS server IP address. This is also known as the primary DNS
server. DNS is a Service that maintains information about a portion of the Domain
Name System (DNS) database and responds to DNS queries for resolving a domain
name to an IP address. For more information about DNS, see chapter one.
Alternate DNS Server:
Enter the alternate DNS server IP address. This is also known as the secondary DNS
server.
In the "Public WAN IP Address" section:
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,
then 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 its information so that VoIP calls are properly handled.
Current public WAN IP address:
When 'dynamic' has been selected for the public IP address type, this entry shows
the current public IP address and is not editable. If the public IP address is 'static',
then you will need to enter it here.
Public WAN IP address-checker server name:
When 'dynamic' has been selected for the public IP address type, this entry shows
the current server name for the IP checker utility. If the public IP address type is
'static', then no information is required. The default location is www.talkswitch.com
where there is an IP checker application running on the server which responds to
requests from TalkSwitch units for the public IP address at its location.
C o n f i g u r i n g T a l k S w i t c h 2 9