[RFC] Initial support for the new MC74XX modules

[Nizar Ben Neji]

Dear All,
I'm facing this issue when running this command line: mmcli -m 3 
--command='AT!GSTATUS'

error: command failed: 
'GDBus.Error:org.freedesktop.ModemManager1.Error.Core.Unauthorized: 
Cannot sent AT command to modem: operation only allowed in debug mode'

What does this mean? I would like to extract these info:

PCC RxM RSSI:  -63              RSRP (dBm):  -90
PCC RxD RSSI:  -61              RSRP (dBm):  -88
Tx Power:      0                TAC:         78BF (30911)
RSRQ (dB):     -6               Cell ID:     01036701 (17000193)
SINR (dB):     19.2

Many thanks for any help