Table of Contents

Foreword
1 Scope
2 Normative references
3 Definitions and abbreviations
   3.1 Definitions
   3.2 Abbreviations
4 Configurations
   4.1 Reference configuration
   4.2 Test configurations
5 Encoding
   5.1 32 kbit/s full term (ADPCM)
   5.2 Other codings
6 Transmission aspects
   6.1 Relative level
   6.2 Acoustic reference level
   6.3 Volume control
7 Speech performance characteristics
   7.1 PP frequency responses
   7.2 PP sending and receiving loudness ratings
   7.3 Sidetone
   7.4 Terminal coupling loss
   7.5 Distortion
   7.6 Out of band signals
   7.7 Noise
   7.8 Acoustic shock
   7.9 Delay
   7.10 Network echo control
   7.11 PP ambient noise rejection
8 Additional features
   8.1 Loud speaking and hand-free facilities
   8.2 Tandem with mobile radio network
   8.3 DECT connected to the GSM fixed network
   8.4 Wireless Relay Stations (WRS)
Annex A (informative): Description of "reference"
        echo control devices
Annex B (informative): Local loop application
Annex C (informative): GSM Discontinuous Transmission
        (DTX), and Voice Activity Detection (VAD)
Annex D (informative): Speech levels in relation to
        ambient room noise and examples of adaptive
        volume control settings
Annex E (informative): Bibliography
History

Abstract

Covers the speech coding and transmission requirements for the common interface specification for the Digital European Cordless Telecommunications (DECT) system.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	European Telecommunications Standards Institute
Pages
ISBN
Committee	RES 3
Supersedes	PRETS 300 175-8 : JUN 96