DIN ETS 300084-1993 综合服务数字网络(ISDN).3.1KHz音频信息传送用线路模式结构的载体服务种类.端对端兼容性的终端要求
Integrated Services Digital Network (ISDN); circuit mode structured bearer service category usable for 3,1 kHz audio information transfer; terminal requirements necessary for end-to-end compatibility; English version ETS 300084:1993
The document deals with the end-to-end compatibility of telecommunications equipment to support the 3,1 kHz audio information transfer when connected to the pan-European ISDN.#,,#