Hi thank's for you opinion, I think I'll start first by running a plot over 48hrs while browsing, to see if there is any "signature" that may link with any performance problems. After that I will start to look at running a test direct from the master phone socket, having disconected every thing else from the line (eliminating the extension, microfilters and any interference from my Sky Digital box), so it would be possible to make a comparison.

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