[11:24:31.454]发→◇AT+CEREG?
□
[11:24:31.459]收←◆AT+CEREG?
+CEREG: 0,1
OK
[11:24:39.198]发→◇AT+CPIN?
□
[11:24:39.203]收←◆AT+CPIN?
+CPIN: READY
OK
[11:24:46.567]发→◇AT+CFUN?
□
[11:24:46.573]收←◆AT+CFUN?
+CFUN: 1
OK
[11:24:53.175]发→◇AT+COPS?
□
[11:24:53.181]收←◆AT+COPS?
+COPS: 0,0,“CHINA MOBILE”,7
OK
[11:24:59.646]发→◇AT+QCFG=“band”
□
[11:24:59.654]收←◆AT+QCFG=“band”
+QCFG: “band”,0x493,0x1e200000095,0x21
OK
[11:25:06.716]发→◇AT+QCFG=“nwscanmode”
□
[11:25:06.724]收←◆AT+QCFG=“nwscanmode”
+QCFG: “nwscanmode”,0
OK
[11:25:14.013]发→◇AT+QENG=“servingcell”
□
[11:25:14.021]收←◆AT+QENG=“servingcell”
ERROR

定向物联卡,无网络:
ATI
Quectel
EC20F
Revision: EC20CEFILGR06A09M1G