3 Abbreviations

26.4533GPPCodec for Enhanced Voice Services (EVS)Release 17Speech codec frame structureTS

For the purposes of the present document, the abbreviations given in 3GPP TR 21.905 [1] and the following apply. An abbreviation defined in the present document takes precedence over the definition of the same abbreviation, if any, in 3GPP TR 21.905 [1].

AMR-WB Adaptive Multi-Rate – WideBand

CMR Codec Mode Request (for AMR and AMR-WB and EVS)

CS Circuit Switched

EVS Enhanced Voice Services

EVS-CMR CMR for EVS

EVS-SID SID for EVS

FQC Frame quality Classification

EVS AMR-WB IO EVS AMR-WB Inter Operable (mode of operation)

MSB Most Significant Bit

RTP Real Time Protocol

SID Silence Insertion Descriptor (for AMR and AMR-WB)

ToC Table of Contents

WB-CMR CMR for AMR-WB

WB-SID SID for AMR-WB (and for EVS AMR-WB IO)