If connecting an analog modem to a digital phone line fries the modem, I wonder
what happens if one uses a UPS that has a modem connection.  Then the modem is
connected to the phone one way and to the UPS the other way, and the other UPS
connector goes to the wall jack.  Would that save the modem, maybe fry the UPS?
Or would the UPS be built of tougher stuff?