Modem doesnot get detected (ZBT WE826 16m)

You need to load cdc_ether driver for that interface.
For serial interface to work you need to install kmod-usb-serial-option and add to startup
echo "1bbb 0192 ff" >/sys/bus/usb-serial/drivers/option1/new_id

bmork will correct me if I'm wrong :wink: