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Old 18th May 2019, 4:04 pm   #12
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Join Date: Apr 2012
Location: Worksop, Nottinghamshire, UK.
Posts: 4,218
Default Re: GPO/BT Call Progress Tones?

I can still remember around 1980 when the equipment was old there used to be an announcement that often came up when calling a London number from the home counties.
"All lines from (town name) are engaged".
It was very frustrating when calling a busy switch board in the London area.
You occasionally got a line just to find that the line to the busy switch board was engaged.
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