ETSI ETS 300 395-4-1997 Radio Equipment and Systems (RES); Trans-European Trunked Radio (TETRA); Speech Codec for Full-Rate Traffic Channel; Part 4: Codec Conformance Testing
2000ETSI ETS 300 395-4-2000 Terrestrial Trunked Radio (TETRA); Speech Codec for Full-Rate Traffic Channel; Part 4: Codec Conformance Testing Second Edition
1997ETSI ETS 300 395-4-1997 Radio Equipment and Systems (RES); Trans-European Trunked Radio (TETRA); Speech Codec for Full-Rate Traffic Channel; Part 4: Codec Conformance Testing