GPO Wall telephones - how was the line cord installed before plug and socket ?
With the likes of the table telephones 706 and 746, the line cord was terminated in an appropriately coloured junction box which in turn was connected to the drop wire. But, to the likes of clueless me, the wallphone had no obvious connection to the outside world. How was it done and how did the GPO technicians proceed when they were doing a new installation ?
Many thanks.
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