ETSI TS 146 012-2017 数字蜂窝通信系统(第2+阶段)(GSM全球移动通信系统);全速率语音;全速率语音业务信道的舒适噪声方面(V14.0.0;3GPP TS 46.012,版本14.0.0 发行版本14)
Digital cellular telecommunications system (Phase 2+) (GSM); Full rate speech; Comfort noise aspect for full rate speech traffic channels (V14.0.0; 3GPP TS 46.012 version 14.0.0 Release 14)