ETSI TR 126 912-2000 全球移动通信系统(UMTS).语音和多媒体编解码器的QoS.3G上H.324附录C的定量性能评估3G TR 26.912(版本3.0.0,1999年发布)
Universal Mobile Telecommunications System (UMTS); QoS for Speech and Multimedia Codec; Quantitative Performance Evaluation of H.324 Annex C over 3G 3G TR 26.912 Version 3.0.0 Release 1999