You can have access to your FM device in the following ways:-
via an usb cable
https://wiki.teltonika-gps.com/view/FMB920_First_Startvia Bluetooth:
https://wiki.teltonika-gps.com/view/FMB920_Bluetooth_settingsvia FOTA WEB:
https://teltonika-gps.com/product/fota/
https://wiki.teltonika-gps.com/view/FMB920_GPRS_settings#FOTA_WEB_settingsVia FOTA 3.x (lite) - desktop application:
It updates the firmware of FM devices over the cellular network.It requires an SMS service.
https://wiki.teltonika-gps.com/view/FOTA_Desktopvia Android phone:
https://teltonika-gps.com/product/fmbt-mobile-application/
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via sms commands:
https://wiki.teltonika-gps.com/view/FMB920_SMS/Call_settings
https://wiki.teltonika-gps.com/view/FMB920_SMS/GPRS_Commands
...
...
via Codec protocol:
https://wiki.teltonika-gps.com/view/Codec
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If you need tachograph file:
https://teltonika-gps.com/product/tachograph-web/