Visualizando fluxo PPP via terminal

Podemos facilmente usar o minicom para inicializar uma conexao com modem GPRS, mas tambem é possivel fazer isto via o prompt do terminal:

echo -ne "AT+CGDCONT=1,IP,tim.com.br\r" > /dev/ttyACM0
echo -ne "ATD*99***1#\r" > /dev/ttyACM0
cat /dev/ttyACM0

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