I've noticed that the wire can be confusing as they are reversed at each end, by reversed i thought that it may be the opposite, so i checked the modem line and they do.
i soppose this way it does keep things simple as you can't wiring it up the wrong way....
but i soppose things can get hard when depending on which end has been plugged in the v1 the red wire isnt positive! and the colours of the wire can be wrong.. as power and be ground and visa versa!
i wouldnt like to be a phone engineer!
colour coding confusing madness!
i though colour coding made things easy, unless the plug isnt the ''correct'' way