The device I am using has a Cinterion® EXS82-W built-in and I am noticing some weird behavior when it comes to Access Technologies and ModemCapatibiliy, IMHO it doesn't make sense, but I guess I am wrong somewhere and would like to know where.
Reading the AccessTechnologies property
busctl get-property org.freedesktop.ModemManager1 /org/freedesktop/ModemManager1/Modem/0 org.freedesktop.ModemManager1.Modem AccessTechnologies
u 16384
The value 16384 should correspond to MM_MODEM_ACCESS_TECHNOLOGY_LTE.
Reading the SupportedCapabilities property
busctl get-property org.freedesktop.ModemManager1 /org/freedesktop/ModemManager1/Modem/0 org.freedesktop.ModemManager1.Modem SupportedCapabilities
au 1 4
The value should correspond to MM_MODEM_CAPABILITY_GSM_UMTS.
Question
How can it be that my modem supports only GSM/UMTS from the general access technology families, but at the same time it is using the LTE technology when registered with or connected to a network?
Thanks and cheers.