> Couple of questions.
> With the microfilters, do I need to use one on the socket that I plug my modem into, even if I am not using a phone from that socket too?
> I have a cable and wireless "smartbox" type thing that plugs in between the phone and the socket so that any phone calls made from that phone are billed to out telewest account rather than BT.
> Can we still use this or wil it intefere with the ADSL stuff?
You only need a microfilter on any phones sockets that you are using for a phone/fax or dialup modem.
I have one in my dtudy where my ADSL modem is as i also have my old dialup modem hooked up as well - for backup purposes. You might consider the same.