1 Commands can be issued using 3.3v serial on rx/tx pins
11 direct connection with gsm modem
28 *MCGDEFCONT: "IPV4V6","internet"
33 ## read SIM card number
38 +CME ERROR: SIM not inserted
40 ?? hm. we do have sim card inserted!
45 *MICCID: 8946032000001290095F
55 +CGSN: 864823045031648
59 ## check if device is connected
75 ## read current NB network band
94 +CESQ: 38,0,255,255,28,63
98 +CESQ: <rxlev>,<ber>,<rscp>,<ecno>,<rsrq>,<rsrp>
103 +CESQ: (0-63,99),(0-7,99),(255),(255),(0-34,255),(0-97,255)
107 # other commands from firmware
110 x:+0.161 y:+0.390 x:-0000711 y:-0001718
125 ## power on - with non working sim
137 ## power on - with working sim