I live in a block of flats and have one phoneline. The connection box for this is in the front room and is the square shape with the phone jack in the centre and a screw either side. It is not the one that once unscrewed, seperates the lower half. It is the one that, once unscrews, seperates the whole thing from the back box. Ive looked at clarity to see what one I need but it has 'images not availible' so Im unable to distinguish between the few listed as to what one I can use as a direct replacement. Can anyone help me with what ADSL conversion box I need to replace the existing one? Mike. **Think I needed the LJ4F box from Clarity so have ordered one plus the 'tool' for it. Ill let you all know how it goes when it arrives.