CONTENTS

�1���� Introduction
�2���� Scope
�3���� References
�4���� Terms and definitions
�5���� Abbreviations and acronyms
�6���� ISDN CSCT NP/QOS parameters
�7���� Measurement methods for ISDN CSCT NP/QOS parameters
������� 7.1���� Measurement methods applicable
������� 7.2���� Comparison of three measurement methods in terms of measurable performance parameter
������� 7.3���� Characteristics of each measurement method
����������������� 7.3.1���� Test call based measurement
�������� ���������7.3.2���� CDR based measurement
����������������� 7.3.3���� INMD based measurement