I have recently joined NTL and have noticed that the phone rings sightly different to that of BT. NTL`s phone ring consist of three initial rings followed by the normal set of two rings (ring-ring-ring, ring-ring, ring-ring) where BT`s (ring-ring, ring-ring, ring-ring). Is this common to NTL`s network or possible a fault on the line? or could it be a means of identifying which phone is ringing if for example the BT line was retained and used as a second line.