D-Link DI-206 - Manual (Page 63)

DI-206 ISDN Remote Router
Configuration and Management 51
Dial Configuration
You can configure the two ISDN interfaces on your DI-206 to dial-out
only when a packet is forwarded to that interface, and hang up after all
data has been transferred and the link is idle. This can be used to lower
the cost of an unpopular link or used as a backup link to your ISP. This
feature is commonly called “Dial on Demand”. ISDN interfaces can
also be configured here to receive calls from dial in users and other
networks, called “Remote Access”. Please note however, that in all
cases, after configuring the ISDN Links in the Dial Configuration
submenu, they must be further configured in the Dial-In User Profile
submenu or Remote Network Profile submenu.
Dial In IP Pool
The dial in IP pool allows you to define a range of IP addresses that will
be reserved for and assigned to dial-in users.