ETSI TS 101 909-3-2001 接入和终端(AT).公共通信网络的数字宽带电缆接入.IP多媒体时间临界业务.第3部分:在有线电视网络上利用有线调制解调器提供双向音频业务的音频编解码器要求
Access and Terminals (AT); Digital Broadband Cable Access to the Public Telecommunications Network; IP Multimedia Time Critical Services; Part 3: Audio Codec Requirements for the Provision of Bi-Directional Audio Service Over Cable Television Networks usi