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Message: <blockquote data-quote="daveuk8282" data-source="post: 1543303" data-attributes="member: 133091"><p>It could possibly be the main phone point face plate. Unscrew the two screws on the phone point face plate and take it off. Behind there should be a test socket, plug your filter into it and try that. If that does not work, you should dial 17070 from your phone to do a quiet line test press option 2. The line should be very quiet if all is good, if you hear crackling or sounds of wind etc, contact BT and tell them you want a line test done due to noise on the line, you need them to alter the SNR margin (signal to noise ratio). Any interference on the line will cause your DSL signal to drop.</p></blockquote><p></p>