声音频带
The types of non-voice signals considered include voiceband data, network signalling, circuit continuity tones, and dual-tone multi-frequency signalling. 考虑的非话音信号的类型包括：话带数据、网络信令、电路连接单音以及多音多频信令。
This Recommendation provides transmission performance guidelines for voiceband services over networks that are an interconnection of an IP network (e.g. 本建议提供了IP网络和PSTN互联上语音带业务的传输性能指导。
This tendency, together with the reality that voiceband communications will be an important source of traffic on such networks, has led ITU-T to develop this Recommendation. 这个趋势，和这样的事实：语音带通讯在该网络上将会成为一个重要的交通资源，使得ITU-T开发该建议。
IMPLEMENTATION OF HIGH SPEED VOICEBAND DATA MODEM USING DSP TMS320C25 采用DSP TMS320C25设计高速话带数字调制解调器
voiceband telecommunication 音频电信
