ETSI EN 300 962-2000 数字蜂窝通信系统(第2+阶段).全速率语音.全速率语音信道丢失帧的替代和静音.GSM 06.11(版本8.0.1,1999年发布)
Digital Cellular Telecommunications System (Phase 2+); Full Rate Speech; Substitution and Muting of Lost Frames for Full Rate Speech Channels (GSM 06.11 Version 8.0.1 Release 1999)