Re: In deep water with ISDN / Broadband install



"Mike Faithfull" <mouse_potato@xxxxxxxxxxxx> wrote in message
news:L56dncCkZIVJ9YfanZ2dneKdnZydnZ2d@xxxxxxxxxxxx

"Graham." <me@xxxxxxxxxxx> wrote in message
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I think you actually have is just an ISDN line, nothing else.

Typically Basic Rate ISDN is used to provide:
1) a dedicated 128kbs data line, no POTS
2) 1X64kbps data + 1POTS
3) 2 separate POTS, no data

So the incoming line (which will just be dead if you connect a POTS a
phone to it)
goes upstairs to the ISDN NTE, the box with the line-powered light.
A pair of wires from one of the POTS terminals in the NTE goes to
the phone socket, and also back downstairs to the other POTS
socket, but this is a different pair to the incomming ISDN, but
it may well be in the same cable.

Different DDI/ MSN numbering is quite normal.

--
Graham

Lots of interesting information received, thanks everybody! I'll try to
answer the questions, if I can, but first, let me assure Graham that there
was a POTS service in existence before the ISDN came along, and it still
exists with the same telephone number as it always had, and the 'phone is
still plugged into the same master socket that it always was. I can quite
believe that there are two pairs coming in to the master socket, but if
that's the case, I still don't understand how they are connected.

You may be correct, but it is also possible that the POTS line
was converted to ISDN with the configuration that I have
suggested and the original number retained for the POTS
phone. This will also explain why the original master socket
has no dialtone, the engineer left it in place instead of
replacing it with a junction box.

The thing that makes me think I may be wrong, and there
is indeed a separate POTS line, is you saying that you
have successfully got ADSL provisioned on it. Is that
signed and sealed?
--
Graham

%Profound_observation%


.

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