Hi Aleksander, > Could you let us know which modem you're using and which commands (AT > commands I assume) can be used to query whether Cat-M, Cat-1 and/or > NB-IoT are supported, and how to change them?
I'm targeting Fibocom MA510/MC610 modems. Unfortunately the AT command manual is confidential so I can't share the details, but suffice it to say that there exists a command +FOO: - AT+FOO=... will set the current and preferred access technologies (AcTs). - AT+FOO? will get the current and preferred AcTs. - AT+FOO=? will list all supported AcTs. The AcT list enumerates GSM, LTE, eMTC, NB-IoT, Automatic, and sensible combinations of those. I hope this is sufficient to describe where I'm at. Thanks a lot! Fredrik