Try this:
Before sending the request, transfer the modem port to "silent" mode.
echo -en 'AT^CURC=0\r\n' > /dev/ttyUSBx
Where ttyUSBx is the port of the modem with which modemmanager communicates.
Source: https://www.linux.org.ru/forum/linux-hardware/12368848
Try this:
Before sending the request, transfer the modem port to "silent" mode.
echo -en 'AT^CURC=0\r\n' > /dev/ttyUSBx
Where ttyUSBx is the port of the modem with which modemmanager communicates.
Source: https:/ /www.linux. org.ru/ forum/linux- hardware/ 12368848