Andy Mabbett wrote:

You're supposed to have an ADSL filter (the widget maybe) on each phone
set (or on a line leading to all phones)

Since the PC is ~20' from the wall socket, how can that be achieved? If
I put the filter (=widget) into the wall socket, the lead for the router
won't reach it.

Then plug your Extension lead into the wall socket, your Widget into the
end of the extension lead, the Modem/router into one plug on the widget
and your phone into the other plug of the widget.

I don't see why you are needing to use a "splitter" in the first place.

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