CONTENTS

 1     Scope
 2     Normative References
 3     Abbreviations and Definitions
 4     Reference Configuration
 5     Overall PSTN Quality Perspective
        5.1     PSTN Quality of Service Perspective
        5.2     PSTN Transmission Performance Perspective
 6     Transmission Effects of the Digital Radio Channel
 7     Speech Transmission Performance Objectives
        7.1     General
        7.2     Speech Coder Performance
        7.3     Loudness Ratings
        7.4     Weighted Terminal Coupling Loss
        7.5     Delay
        7.6     Delay and Echo Response Variations
        7.7     Control of Echo from Outside the Wireless System
        7.8     Clipping (temporal)
        7.9     Idle Channel Noise
       7.10     Noise Contrast and Comfort Noise
       7.11     Random Bit Errors and Bursts of  Errors
       7.12     Bandwidth
       7.13     Stability Loss (Minimum Echo Path Loss)
       7.14     Quantization  Distortion
 8     Voiceband Data and Other Non-Speech Transmission
        8.1     General
        8.2     Application Requirements
        8.3     Performance Suitability
        8.4     Interworking
        8.5     DTMF
        8.6     Call Progress Signals