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

Standards [CURRENT]

XP Z89-380 ; XP I-ETS 300380:1998-04-01
Universal Personal Telecommunication (UPT). Access devices. Dual Tone Multi Frequency (DTMF) sender for acoustical coupling to the microphone of a handset telephone

Title (German)

UNIVERSELLE PERSOENLICHE TELEKOMMUNIKATION (UPT). ANSCHLUSSGERAETE. ZWEITON-MULTIFREQUENZSENDER FUER DIE AKUSTISCHE KOPPLUNG AN DAS MIKROPHON EINES TELEFONS MIT HANDAPPARAT

Edition 1998-04-01

Original language French

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Terminology

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

XP Z89-380 ; XP I-ETS 300380:1998-04-01 Universal Personal Telecommunication (UPT). Access devices. Dual Tone Multi Frequency (DTMF) sender for acoustical coupling to the microphone of a handset telephone

Want to learn more?

XP Z89-380 ; XP I-ETS 300380:1998-04-01
Universal Personal Telecommunication (UPT). Access devices. Dual Tone Multi Frequency (DTMF) sender for acoustical coupling to the microphone of a handset telephone