But you did not include the 80's
In 1985, telephone calls could indeed be traced by operators. When someone made a call, the operator had the ability to track the call’s origin and destination.
Without passing judgement on the article as a whole. I did find a couple of points which I found of particular interest.
This is the first time I have read about someone who was involved with the 999 call.
This statement together with logs for me proves there was a call irrespective of what may have been said, heard or indeed who made it.
It does not matter who ordered the ambulances.
There was someone alive in WHF.