ETSI TS 102 250-1-2003 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:业务质量方面的识别(版本1.1.1)
Speech Processing, Transmission and Quality Aspects (STQ); QoS aspects for popular services in GSM and 3G networks; Part 1: Identification of Quality of Service aspects V1.1.1