Paul,
At the time, I was only an apprentice
Electrician, but, what I do know,
was,that at the time (when the then Post
Office Telecoms), ran all new wiring
through houses, buildings, in Temuka.
But, we still had the old 746 phone,
the only difference being that we could
actually use the dial on our telephones,
to dial out directly.
Now that I live in Ashburton, here, we still have the same technology,
except we are trying to pump a certain
number of Megabytes of Data down it now.