ETS 300 540 : 20006

Intellectual Property Rights
Foreword
1 Scope
  1.1 Normative references
  1.2 Definitions and abbreviations
  1.3 Introduction
2 Network configuration
  2.1 General
  2.2 Model of the PLMN
  2.3 Interfaces
  2.4 Configurations of Connections
  2.5 4-wire circuits in the PLMN
3 Transmission performance
  3.1 Overall Loss/Loudness ratings
  3.2 Stability Loss
  3.3 Delay
  3.4 Echo
  3.5 Clipping
  3.6 Idle channel noise
  3.7 Noise contrast
  3.8 Sensitivity/frequency characteristics
  3.9 Distortion
  3.10 Sidetone
  3.11 Out-of-band signals
  3.12 Requirements for information tones
  3.13 Crosstalk
Annex A (informative): Considerations on the Acoustic
        Interface of the Mobile Station
  A.1 Handsfree MS
  A.2 Handset MS
  A.3 Headset MS
  A.4 Inter-reaction with DTX
Annex B (normative): Transmission requirements testing
  B.1 Loudness ratings
  B.2 Idle Channel Noise
  B.3 Sensitivity/frequency Characteristics
  B.4 Distortion
  B.5 Variation of gain with input level
  B.6 Sidetone
  B.7 Sidetone distortion
  B.8 Out-of-band sidestone
  B.9 Acoustic echo loss
Annex C (normative): MS delay requirement definition
  C.1 Full rate MS delay requirement definition
  C.2 Half rate MS delay requirement definition
Annex D (informative): Change Request History
History

Gives guidance as to the precautions, measures and minimum requirements needed for successful interworking of the PLMN with the national and international PSTN.