Draytek Vigor IPPBX 2820 Series User Manual page 215

WAN IP Network
Settings
VigorIPPBX 2820 Series User's Guide
Click Yes to use this function and type in a fixed IP address in
the box.
Fixed IP - Click Yes to use this function and type in a fixed IP
address in the box of Fixed IP Address.
Fixed IP Address -Type a fixed IP address.
Obtain an IP address automatically – Click this button to
obtain the IP address automatically.
Specify an IP address – Click this radio button to specify
some data.
IP Address – Type the IP address.
Subnet Mask – Type the subnet mask.
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