CONTENTS

 1     Introduction
 2     Scope
 3     Principles for the organization of an interconnected computerized international information service
 4     Standards used for inquiry and reply
        4.1     Inquiry information
        4.2     Reply information
        4.3     Alphabet to be used
        4.4     Conversion
        4.5     Functionality
 5     Operator manual
Annex A  –  Description of standardized inquiry and reply messages
        A.1     Inquiry format
        A.2     Reply format
Annex B  –  Directory services interconnect bearer services
        B.1     Introduction
        B.2     Identification
        B.3     Network interconnection
Annex C
        C.1     Formal definitions of directory messages
        C.2     Structure of the inquiry
        C.3     Structure of the reply
Annex D  –  OSI Layers 4 and 5 profile for the Recommendation E.115
        D.1     Overview
        D.2     Use of session services
        D.3     Lower layer protocols
Annex E  –  Message codes for the Recommendation E.115