ETSI TS 102 250-1-2007 语音处理,传输和质量方面(STQ).GSM和3G网络中流行业务的QoS方面.第1部分:业务质量标准的识别(版本1.2.1)
Speech Processing, Transmission and Quality Aspects (STQ); QoS aspects for popular services in GSM and 3G networks; Part 1: Identification of Quality of Service criteria V1.2.1