Stable name for Sierra Aircard 320u


I am having issues where my sierra aircard 320u moves from /dev/ttyUSB3 to /dev/ttyUSB4 throughout the day possibly due to usb connection issues. How do I name it /dev/aircard320u instead using the product id 0f4d:68ab?

I tried using and chatgpt.

      # Module Telit HE910-* connected to minipciexpress slot MAIN
      if [ "${DEVICENAME}" = "1-1.3:1.0" ]; then
        ln -s /dev/${DEVICE_TTY} /dev/ttyMODULO1_DIAL

I am not sure if this example would work and I am not sure how to check the devicename value for the dial or data paths for the aircard.

Thanks for the help.