On Mon, 12 Sep 2005 11:20:47 +0100, "Ivor Jones"
<ivor@despammed.invalid> wrote:


>Hmm, now this is where it gets interesting. The cable supplied with my UK
>spec. Fritz!Box has an RJ45 (pins 1 and 8) wired directly to a standard BT
>plug. The instructions supplied say that this can be plugged directly into
>*either* an analogue phone socket *or* an ISDN connection. Now I have
>never used ISDN but I have seen photographs of the terminal equipment and
>aren't they standard phone sockets..?

No, ISDN uses RJ45 and (after the BT Network Terminating box) two
pairs of wires all of which are required. Using the 1/8
configuration for analogue means that using their supplied cables you
plug RJ45/RJ45 for ISDN and BT/RJ45 for analogue and can't get it
wrong.


--
Peter Parry.
http://www.wpp.ltd.uk/