Seeking support for NB IOT getting started

IoT Modules LPWA Module
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1

We have designed an NB IOT board based on the Quectel BC660K-GL.
We are able to communicate with module using Serial communication.We are using our regular mobile sim(2G/3G/4G - Airtel and Jio) but it is not doing Network registration.
It is showing Registration denied.

Can you please send a command sequence or get started code for network registration with regular Mobile SIM.

2

You need to use an M2M SIM card, the current regular mobile SIM card may be rejected by the radio network;

AT+CFUN=0
AT+QCSEARFCN
AT+CSCON=1
AT+CFUN=1
AT+CPIN?
AT+CIMI
AT+CEREG?
AT+QENG=0
AT+CGPADDR