there is a net manager software to configure the ws100. if you’re running the ws100 behind a router. You need assign a local ip and then setup your router to forward 1720 to that ip.
All configuration is done by a telnet session on port 23.
Note: Once the ws100 is up. Plug a phone into port 1 and press * button for 30 secons. It will reset the ip to 192.168.1.2.