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DKE German Commission for Electrical, Electronic & Information Technologies of DIN and VDE

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Pre-standard

I-ETS 300380
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 personengebundene Telekommunikation (UPT) - Anschlußeinrichtungen - Doppelton-Mehrfrequenz-(DTMF)Sender für die akustische Kopplung an das Mikrofon des Telefonhörers

Edition 1995-03
Original language English
Price On Request
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Rudolf Brandner

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63069 Offenbach am Main

Tel.: +49 69 6308-390
Fax: +49 69 6308-9390

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