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

>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..?
>
Nope.

Well, yes, kind off. ISDN is generally presented on RJ45 connectors
via something like an NTE8 (littleish grey box). The ISDN Home and
Business Highway services supplied ISDN on the RJ45 sockets but as
part of BT's equipment also had a terminal adapter (large white box
with 2 blue RJ45's and 2 BT sockets) which effectively converts ISDN
to POTS, hence the provision of standard BT sockets on an ISDN
service, which aren't actually ISDN, just standard analogue ports.
--
Stuart @ SJW Electrical

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