Hello,
GPRS commands require Codec12 protocol.
SMS command structure:
<SMS login><space><SMS password><space><command><space><value>
SMS command getinfo example:
- If you have set SMS login and password: login pass getinfo
- If SMS login and password are not set leave two spaces before command: getinfo
More information you can find in our wiki page : https://wiki.teltonika.lt/view/FMB001_SMS/GPRS_Commands
Best regards
