The Modem Protector has been designed to fix all problems associated with high loop current. It's a quick and easy fix to many of the problems encountered with modern telecommunications equipment caused by high loop current. We've sold thousands of Loop Current Attenuators to phone companies, who use them to prevent lots of strange problems with telephone equipment and modems. The Loop Current Attenuator has a series of dip switches, which a technician flips while watching a loop current meter. If the loop current later changes on the line, the technician needs to go out and manually set the dip switches again.
Modems seem to take a real beating from high loop current problems.
That power is ALL converted directly into heat that a modem must somehow dissipate. The Modem Protector automatically extracts the heat that can burn up your modem. Because they are smaller and cheaper than using real inductors. They look like any 16 pin IC chip, and have the same power handling limitations as IC chips. The best OTA can handle 0.57 watts - about in the middle of the above chart.