D-Link DVG-2004S Quick User Manual page 19

Voip gateway
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Lease Time
Click [Submit] to confirm the change. Click [Cancel] to restore the previous value.
Static IP
Select static IP and enter the IP address provided if your ISP provide you with all the WAN addresses.
DNS Server
Domain Name
Telnet
NAT IP Address
DHCP Server
Lease time from DHCP server. Default is 259200 seconds.
Assigned DNS server IP address.
The unique name that identifies the internet site.
Protocol for remote computing on the internet.
NAT (Network Address Translation) serves three purposes:
1. Provides security by hiding internal IP addresses. Acts
like firewall.
2. Enables a company to access internal IP addresses.
Internal IP addresses that are only available within the
company will not conflict with public IP.
3. Allows a company to combine multiple ISDN
connections into a single internet connection.
Enable/Disable DHCP server. Another method to enable DHCP
is entering ***886# from the phone keypad.
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