Teltonika RUTxxx

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Teltonika Modems enable internet connection using GSM, 3G or LTE networks. They run OpenWrt based, feature rich, open source firmware.

General information

There is a very good wiki by Teltonika.
The manufacturer provides a sofware development kit
Modems can be configured to be controlled with SMS
Configuration is possible with UCI commands

Command Line Interface (CLI)

Modem can be accessed via command line interface (CLI)

Communicate with the modem via gsmctl

From CLI communication with the modem is possible with gsmctl. The programm can be used to gather network information.

$ gsmctl -h
To see options

Tip: gsmctl also enables sending Hayes AT commands to the modem.

SMS

SMS can be sent with gsmctl

Tip: As mobile data often is limited, to monitor data usage VnStat is a good option.