_:ne6e3f22b00c44c4ea8c3f0a8a5cd903bxb1
<http://schema.org/text>
"Hello\n\nI want to know if it is possible to know the reason when a call is not establish.\n\nFor example the phone is busy, not available, out of reach.\n\nAnd after that display it through the serial port.\n\nHope you understand what I want."
<https://forum.arduino.cc/t/report-call-unsuccessful/238524>