The closest to a solution is:
Getting a Huawei EC159 USB Modem working on Ubuntu 11.04
I have no idea what flag to pass to `usb_modeswitch` and I do not want to mess up anything. The output from `lsusb`:
Bus 001 Device 004: ID 19d2:0146 ONDA Communication S.p.A.
Is ZTE MF192 supported at all?
I have tried, without success so far, ModeSwitchForum and Ask Ubuntu