ETSI EN 301 704

ETSI EN 301 704
ETSI EN 301 704 English PDF Digital cellular telecommunications system (Phase 2+) (GSM); Adaptive Multi-Rate (AMR) speech transcoding (GSM 06.90 version 7.1.1 Release 1998)

standard published 12/01/1999 by European Telecommunications Standards Institute

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Adaptive Multi- Rate (AMR) Speech Transcoding

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