Quote:
Originally Posted by grahame1
You know, I forgot the most important questions of all.
(1) Could an engineer tell if a call was in fact made that morning?
(2) Could they tell the duration of that call?
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No & No.
There was no system to record such things on old strowger exchanges.
Call metering was done once a call was answered, simply by sending meter pulses at regular intevals to a customers meter (every number had its own meter).
Just out of interest, are you sure the exchange in question was infact not an electronic exchange ?
In 1985 many exchanges were not electro-mechanical (strowger) exchanges, there were Crossbar, TXE2, TXE4 and even some early System X (digital) exchanges around.
---------- Post added at 17:41 ---------- Previous post was at 17:38 ----------
Quote:
Originally Posted by grahame1
So do the units represent minutes?
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No. They were just "units". Units were clocked up at a faster rate at peak times.