SMS command For GSM Operators

i currently have a problem with an SMS command (GSM operators) with FMB003.
I’m using Wialon as a platform
Here’s what I sent as an SMS command (dashes are spaces):

in the raw data messages received on wialon I always have the same carrier on first 14715, whereas I sent a sms command in the setparam for roaming first on 14720.

of course I get the new value sms confirmation message

thank you for your feedback


If you are using Wialon then the format will be on the GPRS command.

Kindly try to send the command without double space from the begining


5000 - first operator
5001- second operator
5049 - 50th operator

Hi Mr Castro,

Thank very much for your help !!
everything works.

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