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ETSI EN 301 712
- Digital cellular telecommunications system (Phase 2+) (GSM); Adaptive Multi Rate (AMR) speech; ANSI-C code for the AMR speech codec (GSM 06.73 version 7.4.1 Release 1998)
- standard by European Telecommunications Standards Institute, 09/01/2000
- Publisher: ETSI
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CR @ TSG#7
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