ZyXEL Communications 2WG - Manual (Page 11)

ZyWALL 2WG Support Notes
All contents copyright (c) 2006 ZyXEL Communications Corporation.
11
3). Then the 3G wireless card will be dialed up automatically when WAN1 is not available. If you check the
"Nailed-up" option as shown in the figure above, the system will automatically dial up the 3G Internet access
even if WAN1 is available. Then you will see the process in logs as following.