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ETSI TS 126 090
M00004550
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ETSI TS 126 090 Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); LTE; Mandatory Speech Codec speech processing functions; Adaptive Multi-Rate (AMR) speech codec; Transcoding functions (3GPP TS 26.090 version 9.1.0 Release 9)
standard by European Telecommunications Standards Institute, 10/01/2011
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