DIN ETS 300581-8-2001 数字移动电话远程通信系统(阶段2).半价话务.第8部分:移动通信全球系统(GSM)半价话务编解码器的试验序列 (英文版本核准本 ETS 300581-8:1998-04 作为德国标准)
Digital cellular telecommunications system (Phase 2) - Half rate speech - Part 8: Test sequences for the GSM half rate speech codec (Endorsement of the English version ETS 300581-8:1998-04 as German standard)