BS DD172(1991) : 1991

0. Introduction
0.1 Purpose
0.2 Status
1. Scope and field of application
1.1 Statement of function
1.2 Scenario and description
2. Conformity
2.1 General
2.2 UASL Conformity
2.3 MTSL Conformity
2.4 RTS Conformity
2.5 Transfer Syntax Conformity
2.6 Session Layer Conformity
2.7 Transport Layer Conformity
3. References
3.1 Base References
3.2 Additional References
4. Definitions and abbreviations
4.1 Classification of Service and Protocol Elements
4.1.1 Definition of Service Classification
4.1.2 Definition of Protocol Classification
4.2 Abbreviations
5. User Agent Sub-layer
5.1 Classification of IPM Service and Protocol elements
5.2 IPM Service
5.3 IPM Protocol - P2
5.4 Body Parts
5.5 Addressing
6. Message Transfer Sub-layer
6.1 Classification of MTSL Protocol Elements
6.2 MTSL Protocol - P1
6.3 Addressing
6.3.1 ORName
6.3.2 Global Domain Identifier
7. Reliable Transfer Server (RTS)
7.1 Strategy for Implementation
7.2 RTS Service Option Selection
7.3 RTS Options and Clarifications
7.3.1 RTS Protocol Elements
7.3.2 Realization of the RTS Protocol
7.3.3 Notes
8. Transfer Syntax
8.1 Relevant Standards
8.2 Encoding Rule Constraints
8.3 Transfer Syntax Implementation
8.4 Use of the term ISO 646 String
9. Session Layer
9.1 Relevant Standards
9.2 Service Requirements
9.3 Session Segmentation
10. Transport Layer
10.1 Transport Class
Annex A to ENV 41 201

Describes functions and procedures used for interworking between private message handling systems belonging to different private management domains, based on MTA to MTA interconnection without utilising the services of an intermediate administration domain. Covers statement of function, scenario and description, conformity, references, definitions and abbreviations and user agent sub-layer.