ETSI TS 146 012-2009 数字蜂窝通信系统(第2+阶段).全速率语音.全速率语音通信信道的缓和噪声方面(版本8.0.0).3GPP TS 46.012(版本8.0.0,第8次发布)
Digital cellular telecommunications system (Phase 2+); Full rate speech; Comfort noise aspect for full rate speech traffic channels V8.0.0; 3GPP TS 46.012 version 8.0.0 Release 8