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I-ETS 300245-6
I-ETS 300245-6
Integrated Services Digital Network (ISDN) - Technical characteristics for telephony terminals - Part 6: Wideband (7 kHz), loudspeaking and hands free telephony
Titel (englisch)
Integrated Services Digital Network (ISDN) - Technical characteristics for telephony terminals - Part 6: Wideband (7 kHz), loudspeaking and hands free telephony