Ed and Merlinman both make valid points to investigate. On the lines close to the RT (remote terminal) the loop current could be excessive. However, you will probably not be able to get Verizon to do anything about it - you will have to make compensations. Mike Sandman makes current regulators that work very well. Also, as Merlinman suggested, is there a pattern of voltage readings on the lines that are failing?

Bill

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