The Berger automatic telephone exchange was originally built in 1934 and measured 14 square metres. The house was extended by 16 sq.metres in 1968, to give room to the expansion ...
The Berger automatic telephone exchange was originally built in 1934 and measured 14 square metres. The house was extended by 16 sq.metres in 1968, to give room to the expansion of the phone exchange which at this point reached 400 numbers. The exchange was of the 7Dd type from the STK (Standard telephone and cable factory). All the technical equipment is intact. Large portions of Norway’s telephone network were automated using this type of exchange. The 7Dd was therefore a very common model.
About the object
Description
Telenor's first automatic exchange was opened at Frogner in Oslo on 22 January 1921.
Berger sentral var opprinnelig på 14 kvadratmeter. I 1968 ble huset utvidet til 30 kvm for å kunne gi plass til utvidelse av telefonsentralen som da ble på 400 nummer. sentralen var av typen 7Dd "høy" og levert av STK. Alt det tekniske utstyret er intakt (1997). Store deler av Norge ble automatisert med denne typen sentraler. Det har derfor vært en svært vanlig type.
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