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TELEPHONES UK.org.uk for telephone enthusiasts

House Telephones

House Exchange System

  • House Exchange System No. 1HES No: 1 had provision for 1 exchange line & 6 stations
  • House Exchange System No. 2HES No: 2 had provision for 2 exchange lines & 11 stations
  • House Exchange System No. 3 - Keymaster 1+5HES No: 3 had provision for 1 exchange line & 5 stations
  • House Exchange System No. 4 - Keymaster 2+10HES No: 4 had provision for 2 exchange lines & 10 stations

House Telephone Systems