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ETSI TS 146 061
M00004307
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ETSI TS 146 061 Digital cellular telecommunications system (Phase 2+); Substitution and muting of lost frames for Enhanced Full Rate (EFR) speech traffic channels (3GPP TS 46.061 version 11.0.0 Release 11)
standard by European Telecommunications Standards Institute, 10/01/2012
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