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Remove a Service or Application for Port Forwarding.....................................43
Disable Port Forwarding..................................................................................44
Manage Port Filtering for Outgoing Traffic............................................................45
All Other Services and Applications................................................................45
Other Services and Applications.....................................................................47
Application From the List.................................................................................48
Application From the List.................................................................................49
Disable Port Filtering.......................................................................................50
Manage SIM Card Security..................................................................................51
Enable SIM Card Security...............................................................................51
Enter the SIM PIN to Enable the Modem to Connect to the Internet..............53
Personalize the SIM PIN.................................................................................54
Disable SIM Card Security..............................................................................55
Unblock the SIM Card With a PUK..................................................................57
Chapter 6 Manage the Modem and Monitor Usage and the Network
Upgrade the Firmware of the Modem..................................................................60
Back Up and Restore the Modem Settings..........................................................61
Back Up the Settings.......................................................................................61
Restore the Settings........................................................................................62
Return the Modem to Its Factory Default Settings...............................................62
Use the Reset Button......................................................................................63
View Monthly Data and Session Data Usage......................................................64
Set a Plan Limit for the Data Counter..................................................................65
Change the Billing Cycle Counter or Reset the Data Counter.............................66
View Service Provider, Type of Service, and Signal Strength..............................66
View Account Details and Other Details About Your Modem...............................68
View Information About the Mobile Broadband Connection.................................69
Set Up SMS Alert Messages...............................................................................70
Set the Data Limit for SMS Alert Messages.........................................................72
View Alerts...........................................................................................................73
Turn Off the LEDs................................................................................................74
Manage Incoming SMS Messages......................................................................76
Send an SMS Message.......................................................................................77
Chapter 8 Frequently Asked Questions
What do I do when I can't connect a device to the modem?................................79
What do I do when I can't access the Internet?...................................................79
What do I do when the No Signal icon displays?.................................................79
Why does the Signal Strength LED show only a few bars?.................................79
Why is the download or upload speed slow?.......................................................79
LTE Modem Model LB2120
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