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1997ETSI PRETS 300 395-2-1997 Terrestrial Trunked Radio (TETRA); Speech Codec for Full-Rate Traffic Channel; Part 2: TETRA Codec Second Edition
1996ETSI PRETS 300 395-2-1996 Radio Equipment and Systems (RES); Trans-European Trunked Radio (TETRA); Speech Codec for Full-Rate Traffic Channel; Part 2: TETRA Codec
1995ETSI PRETS 300 395-2-1995 Radio Equipment and Systems (RES); Trans-European Trunked Radio (TETRA); Speech Codec for Full-Rate Traffic Channel; Part 2: TETRA Codec