I agree. It's not high loop current, it's excessively-high voltages used to push POTS over tremendously long distances in rural environments. Some of them even go up to 72-96 volts here even in metro areas to avoid costly build outs. I've had some OPX cases where the MW lights stayed lit on the the remote S/L stations due to high line voltage. We actually lost a customer for this reason.

The loop current attenuators probably won't help here, but I'm not so sure that the choke/drains will either. It just stinks that the customer has to pay for this level of support.

Sure, they measure it and it's within spec at the CO, but that's because the testing they do is at the switch, before the line goes into the Lorrain units. That's where the fun begins.

Ed Vaughn, MBSWWYPBX