Proroute
GEM
2M
4G
Router
GEM-2M series User Manual
35
3G/4G:
If you have subscribed 3G/LTE data services from mobile operators. This
gateway can support LTE/3G/2G depends on respective specifications. However, if
your 3G data plan is not with a flat rate, it’s recommended to set Connection Control
mode to Connect-on-demand or Manually.
3.1.1.2.1 3G/4G WAN – 3G/4G
Click on the “
Edit
” button for the 3G/4G WAN interface and you can get the detail
WAN settings and then configure the settings as well.
1.
WAN Type
: Leave it be “3G/4G”.
1.
Preferred SIM Card
: Choose “SIM-A First”, “SIM-B First”, “SIM-A Only” or
“SIM-B Only” for 3G/4G connection. There are two SIM card slots on this
gateway and with four kinds of SIM card usage scenarios, including “SIM-A First”,
“SIM-B First”, “SIM-A Only” and “SIM-B Only”. By default, “SIM-A First” scenario
is used to connect to mobile system for data transferring. If using “SIM-A First”
scenario, the gateway will try to connect to the Internet by using SIM-A card first.
And when the connection is broken, gateway system will switch to use SIM-B
card for an alternate automatically. System will not switch back to use SIM-A
card unless SIM-B connection is also broken. That is, SIM-A and SIM-B are used
iteratively, but either one will keep being used for data transferring when current
connection is still alive. In the same way, the gateway will try to connect to the