How to solve this error on EC25-E

IoT Modules LTE Standard Module
1

I am experiencing with my EC25-E modem on the Jio 4G network in India.

Here is the sequence of AT commands and responses when attempting to initialize the modem:

GSM Init…
TX : AT
RX2 : RDY
TX : AT
RX1 : OK
TX : ATI
RX1 : Quectel EC25 Revision: EC25EFAR06A08M4G OK TX : AT+CPIN?
TX : AT+QCFG=“band”,0,4,0,0
RX1 : OK
TX : AT+CREG?0,0
RX1 : +CREG: 0,1 OK
TX : AT+CREG?
RX1 : +CREG: 0,1 OK
TX : AT+CREG?
RX1 : +CREG: 0,1 OK
TX : AT+CREG?
RX1 : +CREG: 0,1 OK
TX : AT+CSQ
RX1 : +CSQ: 20,99 OK
TX : AT+CBC
RX1 : +CBC: 0,85,3997 OK
TX : AT+COPS?
RX1 : +COPS: 0,0,“JIO 4G Jio”,7 OK
TX : AT+CGDCONT=1,“IP”,“internet”
RX1 : OK
TX : ATD+918459769590;
RX2 : ERROR
TX : ATH0
RX1 : OK

Despite inserting a Jio 4G SIM card with an appropriate recharge plan, I encountered an error (ERROR) while attempting to dial a number (ATD+918459769590;). Additionally, sending an SMS was not successful.

2

Don’t you need to add ims APN?

3

@AKSHAY_KAMBLE
Welcome to Quectel Forum, I suggest you to read the documentation of your device, paying attention in the initial configurations, and also if your operator have some special configurations to be done (LycaMobile in Europe is one example of it).
Furthermore, I suggest you to contact @mandy.wang, @Raphael-Q or @lyman-Q . They are persons with strong knowledge, and I’m quite sure that they will help you in the proper way to fix your issues or some difficulties that you’re facing now.
Once again, feel welcomed to Quectel Forums, and have a great weekend.

1st December 2023,
Shorty :slight_smile:

4

Hi @AKSHAY_KAMBLE
Can you check the AT+CGDCONT? and AT+QENG=“SERVINGBCELL” commands?