On Wed, 23 Dec 2020 23:57:57 +0100
Deloptes  wrote:

> Ahem A Rivet's Shot wrote:
>
> > When I had FTTH installed here the first thing they did (after
> > erecting a couple of poles) was run copper to the house with a POTS
> > service on it, then a week or so later another crew turned up and
> > installed the fibre. The POTS service is active but never used. It would
> > make a lot more sense if the fibre termination was powered by the 50V on
> > the POTS line but it's powered by being plugged into the mains.
>
> May be I am understanding something different under POTS than you guys.

 I don't think so.

> Plain old telephone service, or plain ordinary telephone system, is a
> retronym for voice-grade telephone service employing analog signal
> transmission over copper loops (Wikipedia)

 Yep that's the bunny.

> Notice "analog signal".
> Even if you have copper the last 50m or 3km - it does not mean it is POTS
> on it.

 Sure I've had ISDN over copper before now. However if you can plug
an ordinary analogue phone directly into it and hear a dial tone then it has
POTS on it right ?

> It could be somewhere still a POTS - I never bothered to find out which
> operators are using what switching technology. I worked with operators in
> 12 EU countries with 18mil+ subscribers and last 2 (analog) DMS100 were
> decommissioned 5y ago. Most probably it is ISDN that you get.

 Nope mine is POTS, I plugged an old analogue phone into it when it
was put in just to test it. How far that POTS goes is another matter about
which I know nothing - after all I've a box where POTS signals go a few
centimetres on a PCB before becoming SIP.

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