Terrestrial Trunked Radio (TETRA) - Speech codec for full-rate traffic channel - Part 1: General description of speech functions (Endorsement of the English version EN 300395-1 V1.2.1 (2005-01) as German standard)
地面集群无线电(TETRA).全速率业务信道的语音编解码器.第1部分:语音功能的一般描述(作为德国标准认可英文版EN 300395-1 V1.2.1(2005-01))