I did download the document, unzipped it with a Winzip 20.0 and rapidly browsed it.
It appears to be written by one Joseph P. Campbell, whose sole connection with BT seems to have been
"Personal experience – two week “Work Experience” Placement in Merseyside with British Telecommunications plc in April 1995"
I am not a telecomms expert, and I may be maligning the guy, but to me there is a strong aura of fruitloopery.
This particularly caught my eye
receiving low power microwave vehicle-tracking and
monitoring signals from activated surveillance systems,
using microphones, in civilian vehicles – including those for
the police, fire & rescue, and ambulance services – and for
receiving low power microwave-wireless signals emitted
from cybernetics-related EEG wireless/brainwavesurveillance
implantable devices in some human-beings
and some animals…
Probably somebody with far too much time on their hands who had been reading too much Christopher Hodder-Williams.