CONTENTS

�1���� Scope
�2���� Normative references
������� 2.1���� ITU-T Recommendations
������� 2.2���� ISO/IEC Standards
������� 2.3���� Other references
�3���� Definitions
�4���� Abbreviations
�5���� Conventions
�6���� Basic concepts and models
���� ���6.1���� Functional model
������� 6.2���� Service models
�7���� Principles for the organization of an interconnected computerized international information service
�8���� Service specification
������� 8.1���� Inquiry information
������� 8.2���� Reply information
������� 8.3���� Conversion
������� 8.4���� Version 2 extensibility
������� 8.5���� Functionality
�9���� Common protocol specification elements
������� 9.1���� Character sets, encoding and repertoire
������� 9.2���� Filter concept
������� 9.3���� Matching and matching rules
������� 9.4���� Paging
������� 9.5���� Hierarchical groups
������� 9.6���� The keyword concept of version 1 (2005)
10���� Version 1 (2005) of the Directory Assistance protocol specification
������ 10.1���� Overview
������ 10.2�� ��Inquiry format
������ 10.3���� Reply format
11���� Version 2 of the Directory Assistance protocol specification
������ 11.1���� Overview
������ 11.2���� Inquiry format
������ 11.3���� Reply format
12���� TCP adaptation protocol
������ 12.1���� Introduction
������ 12.2���� Security
������ 12.3���� Application connection establishment
������ 12.4���� Application data transfer
������ 12.5���� Application connection release
13���� Use of the service provided by TCP
������ 13.1���� TCP connection establishment (socket connection)
������ 13.2���� Data transfer
������ 13.3���� TCP connection release
14���� Operator's manual
Annex A � Directory Assistance keywords of Directory Assistance protocol version 1 (2005)
������� A.1���� Functional keywords table
������� A.2���� Descriptive keywords table
Annex B � Directory Assistance protocol version 1 (2005) in ASN.1
Annex C � Directory Assistance protocol version 2 in ASN.1
Annex D � Directory Assistance protocol version 2 in XSD
Annex E � Message codes for Recommendation E.115
Appendix I � NACE nomenclature
������� I.1���� �� About NACE
������� I.2���� �� NACE structure
������� I.3���� �� NACE at work
������� I.4���� �� Extract from NACE
Appendix II � Examples of BER encodings
������ II.1���� Introduction
������ II.2���� Example of ASN.1 BER encoding of the DA protocol version 1 (2005)
������ II.3���� Example of ASN.1 BER encoding of the DA protocol version 2
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