Teltonika Modems enable internet connection using GSM, 3G or LTE networks. They run OpenWrt based, feature rich, open source firmware.
- 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
$ gsmctl -h To see options
Tip: gsmctl also enables sending Hayes AT commands to the modem.
SMS can be sent with gsmctl
Tip: As mobile data often is limited, to monitor data usage VnStat is a good option.