• Shortcut: There are several pre-configured AT commands that you can use
directly. If you want to run your own AT command, choose Manual
command.
• AT Command: The place where you can input AT command. For the list of
AT command, please refer to the AT command manual of the built-in
modem.
• Port: The default port for AT command is /dev/ttyUSB2.
2.4. Tethering
Using USB cable to share network from your smartphone to the router is called
Tethering.