sleep 5
echo -ne +++ > /dev/de910-1
sleep 1
echo -ne +++ > /dev/de910-1
sleep 1
echo -ne "ATH\r" > /dev/de910-1
sleep 1
echo -ne "ATH\r" > /dev/de910-1
sleep 1
echo -ne "\r" > /dev/de910-1
