CONTENTS

�1���� Scope�
������� 1.1���� Bearer services������
������� 1.2���� Purpose of this Recommendation���
�2���� References�
�3���� Abbreviations���
�4���� Reference model��
������� 4.1���� Reference configuration������
������� 4.2���� Reference events���
������� 4.3���� Future reference events������
������� 4.4���� Assumptions for establishing objectives������
������� 4.5���� Performance objective for delay parameters�����������
������� 4.6���� Alternate specification of objectives
�5���� Call processing delays for a Type 2 B-ISDN call��
������� 5.1���� Call establishment delays����
������� 5.2���� Call disengagement delays��
�6���� Incorrect processing parameters���
������� 6.1���� Connection, party and multi-party call set-up error probabilities������
������� 6.2���� Connection and party premature disconnect�����������
�7���� Denial parameters
������� 7.1���� Connection/party set-up denial parameters�
������� 7.2���� Connection/party clearing failure probability
Annex A � Call set-up timers����
Appendix I � Hypothetical reference connection����
Appendix II � Delay of elements����
������ II.1���� Proposal�
������ II.2���� Outgoing link delay Tod�����
������ II.3���� Cross-office handling time Tch��������
������ II.4���� Functional reference points�
������ II.5���� Reasons for the above proposal������
������ II.6���� Objectives for cross-office handling time Tch����