Billion BiPAC 8200AXL-1200 User Manual page 52

Connect on Demand: If you want to make UMTS/GPRS call only when there is a packet requesting
access to the Internet (i.e. when a program on your computer attempts to access the Internet). In
this mode, you must set Idle Timeout value at same time. Click on Connect on Demand, the Idle
Timeout field will display.
Idle Timeout: Auto-disconnect the broadband firewall gateway when there is no activity on the line
for a predetermined period of time. Default is 60 mins.
Continuous: keep an always-on 3G/4G-LTE connection
Keep Alive: Check Enable to allow the router to send message out every 7 seconds (can be
changed base on need) to prevent the connection being dropped by ISP.
IP Address: The IP address is used to "ping", and router will ping the IP to find whether the
connection is still on.
Manual: Select this mode if you want to connect manually.
NAPT: Enable/Disable the NAT.
Default Route: Setup the 3G/4G LTE connection will be used as default gateway or not.
MTU: Most ISP offers MTU value to users.
48