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 Telecommunications Object Thesaurus Term

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manual exchange telephone


Plural:
manual exchange telephones

Top term:

Broader term:

Use for (non-preferred term):

Scope notes:
Common early form of telephone characterised by the lack of any automatic dialling facility, connection being made by the exchange operator. Signalling was typically by manual switching or a hand-wound generator.



 
 



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100 years of automatic switching!
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