CONTENTS

 1     Introduction
 2     Terms and definitions
01     Tests
02     Telephone set components
04     Telephone set types
05     Telephone set accessories
08     Private telephone systems
10     Telephone calls description
12     Local line networks
13     Telephone station usage
15     Transmission performance
16     Measuring apparatus
17     Telephonometry
18     Voice service measurements
19     Speech signal processing
20     Voice services: performance of an automatic speech recognition system
25     Video and multimedia services: General terms
26     Video and multimedia services: Visual degradations
27     Video and multimedia services: Video testing