ETSI TS 102 250-4-2009 语音和多媒体传输质量(STQ).GSM和3G网络中流行业务的QoS方面.第4部分:业务质量测量设备的要求(版本1.3.1).包括磁盘
Speech and multimedia Transmission Quality (STQ); QoS aspects for popular services in GSM and 3G networks; Part 4: Requirements for Quality of Service measurement equipment V1.3.1; Includes Diskette