Follow the steps below to connect an USB modem.
Power on Abilis;
connect the modem to Abilis using the USB cable;
connect the ADSL line cable to modem;
add/configure the adsl resource;
check the modem status leds (Starmodem, Abilis ADSL2+).
Figure 3.7. Connecting an ADSL modem
Interesting chapters:
Section 2.9.1, “ADSL modem”;
Chapter 11, ADSL modem.