CONTENTS

 1     Scope
 2     References
 3     Terms and definitions
 4     Introduction
 5     Principles
 6     Operations
 7     Measurement seasons and days
 8     Combination of measured data
 9     Measurement hours
10     Read-out periods
11     Reference periods for quality factors during the normal and high load
12     Reference periods for network-wide quality factors
13     Different networks and services
       13.1     PSTN   
       13.2     N-ISDN and the IN-based services
       13.3     Signalling System No. 7 (SS No. 7)
       13.4     B-ISDN
       13.5     Other networks and services
14     History
Annex A – Traffic measurements process chart
Annex B – Examples of traffic measurements