debug a GSM Modem using AT command -

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People

I have two prototypes (called prototypes A and B). Both Prototype use GSM TelemetT Modem I am using common SIMs to work with them.

Problem: If I use SIM with prototype A, AT + CGDCONT, AT # GPRS = 1 , then these commands work best. But use the same SIM with Prototype B AT + CGDCONT, AT # GPRS = 1 do not work AT + CGDCONT always echos "Operation not allowed ".

So can I debug this issue?

Thanks a

Try the setting you want to ramp the error details :

AT + CMEE = 1

With the standard AT command set, the most common GSM modem will then show the appropriate error code. I've found that such general messages are often replaced with more detailed error codes.

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