Hello I want to know if it is possible to know the reason when a call is not establish. For example the phone is busy, not available, out of reach. And after that display it through the serial port. Hope you understand what I want.

Report call unsuccessful

system June 10, 2014, 6:56am 2

Don't you have any ideia how to help me?

Is better to use AT commands or the GSM library?

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