CONTENTS

 1     Introduction
 2     Scope and field of application
 3     References
 4     Abbreviations
 5     General model of international PDTS
 6     Addressing aspects
 7     Performance aspects
 8     Call progress signals
 9     Multicast operation
10     User classes of service, categories of access
11     Optional user facilities
12     Closed user groups
13     Permanent virtual circuit
14     Duration of service
15     Outages
16     Service calls
17     General provisions between Administrations
18     General provisions between Administration and customer