DIN - German Institute for Standardization

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Hydrogen Technologies Standards form the basic framework for market ramp-up
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Climate change Standards and specifications support climate targets
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Smart Farming Standards and specifications are drivers for the digitalization of agriculture
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Standards [CURRENT]

FD Z81-030
Telephone sets. Call handling and telephonometry characteristics

Title (German)

FERNMELDETECHNIK. TELEFONAPPARATE. ANRUFVERARBEITUNGS- UND FERNSPRECHMESSWESENEIGENSCHAFTEN

Edition 1997-02-01

Original language French

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Hydrogen Technologies Standards form the basic framework for market ramp-up

Climate change Standards and specifications support climate targets

Smart Farming Standards and specifications are drivers for the digitalization of agriculture

FD Z81-030 Telephone sets. Call handling and telephonometry characteristics

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FD Z81-030
Telephone sets. Call handling and telephonometry characteristics