ETSI EN 301 250-1998 Digital Cellular Telecommunications System (Phase 2) Test Sequences for the GSM Enhanced Full Rate (EFR) Speech Codec (GSM 06 54 Version 4 0 1)《数字蜂窝通信系统(第2+阶段)_1.pdf

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ETSI EN 301 250-1998 Digital Cellular Telecommunications System (Phase 2) Test Sequences for the GSM Enhanced Full Rate (EFR) Speech Codec (GSM 06 54 Version 4 0 1)《数字蜂窝通信系统(第2+阶段)_1.pdf_第1页
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