hi everyone,
I am currently working with the Quectel EG-25G GSM module with linux system ubuntu 20.04. I’m conducting AT command testing for GSM calls. After inserting a new SIM card into my GSM module, I started issuing AT commands. However, when attempting an outgoing call, I receive an “invalid argument” error. Additionally, when an incoming call arrives, the “RING” notification does not appear, and I still encounter the “invalid argument” error. How can I resolve this issue?
my firmware version is ==>EG25GGBR07A08M2G
Qucetel driver is needed ah?
logs:
AT // ok
AT+CREG=1 // Network registration
AT+CPIN? //SIM STATUS
AT+CSQ //Signal quality
ATD; //Dialing call (if i am diall call invalid argument is came)
ATA // answer the call (if Ring response not show after invalid argumnet is came)
ATH //end call
logs:
root@picoimx8mm:/home/ubuntu# microcom -s 115200 -p /dev/ttyUSB3
connected to /dev/ttyUSB3
Escape character: Ctrl-
Type the escape character to get to the prompt.
OK
+CREG: 0,1
OK
+CPIN: READY
OK
+CSQ: 22,99
OK
+CLCC: 1,1,0,1,0,“”,128
OK
OK
OK
Invalid argument