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CONFIGURING AND COMMUNICATING WITH YOUR DEVICE
Dual Carrier Firmware for Cellular Radio
This device uses a cellular radio with dual carrier firmware meaning that it can be used on different carrier
networks (not simultaneously). The device can be used on either the Verizon or AT&T/other networks. The device
is configured for AT&T/others by default.
To check that your device is configured for the desired network:
AT#FWSWITCH?
If response is:
#FWSWITCH: 0
The device is configured for AT&T/other networks.
If response is:
#FWSWITCH: 1
The device is configured for Verizon.
To switch carrier networks:
From AT&T to Verizon:
AT#FWSWITCH=1,1
From Verizon to AT&T:
AT#FWSWITCH=0,1
Note:
This AT Command reboots the system.
Note:
For the Link status (LS) LED to function, you must issue the command AT#GPIO=1,0,2 any time you use
the firmware switch command (AT#FWSWITCH=0 or AT#FWSWITCH=1).
Multiple Carrier Firmware for Cellular Radio
This device uses a cellular radio with multiple carrier firmware. It can be used on different carrier networks (not
simultaneously). The device is configured for AT&T by default.
To check that your device is configured for the desired network:
AT#FWSWITCH?
If response is:
#FWSWITCH: 0
#FWSWITCH: 1
#FWSWITCH: 3
#FWSWITCH: 4
#FWSWITCH: 40
To switch carrier networks:
24
The device is configured for:
AT&T
Verizon
Bell
Telus
Global
®
MultiConnect
Cell MTC-L4G2D User Guide
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