ETSI TS 102 250-6-2004 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6部分:后处理和统计方法(版本1.1.1)
Speech Processing, Transmission and Quality Aspects (STQ); QoS aspects for popular services in GSM and 3G networks; Part 6: Post processing and statistical methods (V1.2.1)