NA 022
DKE German Commission for Electrical, Electronic & Information Technologies of DIN and VDE
Pre-standard
I-ETS 300245-5
I-ETS 300245-5
Integrated Services Digital Network (ISDN) - Technical characteristics for telephony terminals - Part 5: Wideband (7 kHz) handset telephony
Title (German)
Diensteintegrierendes Digitalnetz (ISDN) - Technische Charakteristiken von Fernsprechendgeräten - Teil 5: Breitband-Handapparat-Telefonie (7 kHz)