Quectel EC20 LTE Module doesnt show me incoming call or sms

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I'm using an LTE Module QUECTEL EC20 of this model connected to my Arduino as software Serial monitor and AT Commands directly, I can communicate perfectly with the Module, I get answer OK, Signal, IMEI, and a lot of commands with any problem.

Quectel ec20

I have a tone and I can answer the incoming call with ATA or hang up a call.

I've tried changing the baud rate from 115200 to 19200 and 9600.

I check all these commands:

AT+CLIP=1 

AT+CREG=1

AT+COPS?

Everything looks perfect but I don't get incoming data in my serial when I call or send an SMS.

I have experience with SIM800, SIM5320, SIM7600 of SIMCOM brand working perfectly, But this is my first time trying this model and I have a lot of 5, I tried with all.

I have like one-week looking for information and trying but without success.

Apr 4, 2022 in Others by Kichu
• 19,050 points
247 views

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