I have a Panasonic 2.4 ghz phone with 2 additional handsets and I get dsl line noise on only this phone. I am sure that it is not the jack as I have tried other phones on the jack and the filter works on other phones. i have tried running two filters in line and that doesn't work either. I am using the Excelsus 200 filters (stock SBC DSL filter). Does anyone have any suggestions? Thanks.
-ryan
-ryan