Deloptes wrote:
> Chris Green wrote:
> > the explanation I gave for how you can have no telephone service
> >  but have an internet connection still stands.
> why - this is only one cable that carries both signals

Quite so, but Chris was absolutely correct.

"If there's a
physical break in the wires then your POTS phone will stop working but
because the internet connection uses (moderately) high frequencies the
break in the wire just attenuates the signal somewhat but doesn't stop
it working completely."

My new ADSL connection in my new flat only worked intermitently with my
new top spec router. And older router loaned from a friend worked fine,
so I exchanged the "defective" one. When that failed again I had the
phone company tecnician in. Apperntly my phone socket only had one wire
connected. (Had it not waorked at all, I'd have checked myself.) High
freuwncies can be cpacitatively transmitted across gaps, badly and
highly attenuated, but (nearly) enough.

The reason I could not just keep the old router was that there no longer
is a phone connection in Germany. It's all voice over IP, i.e. a trumped
up skype with all the drawbacks that entails. So I needed a router new
enough to support that.

Phones used to work in emergencies. There was a direct wire to the
exchange and that was battery buffered. Today an electrity blackout
means no phone, no emrgency calls for an ambulance and no fire service
in case one of the many candles used topples over. You're cutr off like
rural places in the 19th century but unlike them totally inable to cope
on your own.


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