ITU-T F.410-1992 Message Handling Services: Public Message Transfer Service Study Group 1

pdf标准 ITU-T F.410-1992 Message Handling Services: Public Message Transfer Service Study Group 1

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INTERNATIONAL TELECOMMUNICATION UNION CCITT F.410 THE INTERNATIONAL TELEGRAPH AND TELEPHONE CONSULTATIVE COMMITTEE (08/92) MESSAGE HANDLING SERVICE OPERATIONS AND DEFINITION OF SERVICE MESSAGE HANDLING SERVICES: THE PUBLIC MESSAGE TRANSFER SERVICE Recommendation F.410 FOREWORD The CCITT (the International Telegraph and Telephone Consultative Committee) is a permanent organ of the International Telecommunication Union (ITU). CCITT is responsible for studying technical, operating and tariff questions and issuing Recommendations on them with a view to standardizing telecommunications on a worldwide basis. The Plenary Assembly of CCITT which meets every four years, establishes the topics for study and approves Recommendations prepared by its Study Groups. The approval of Recommendations by the members of CCITT between Plenary Assemblies is covered by the procedure laid down in CCITT Resolution No. 2 (Melbourne, 1988). Recommendation F.410 was revised by Study Group I and was approved under the Resolution No. 2 procedure on the 4th of August 1992. ___________________ CCITT NOTE In this Recommendation, the expression “Administration” is used for conciseness to indicate both a telecommunication administration and a recognized private operating agency. © ITU 1993 All rights reserved. No part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the ITU. Recommendation F.410 Recommendation F.410 (08/92) MESSAGE HANDLING SERVICES: THE PUBLIC MESSAGE TRANSFER SERVICE (revised 1992) The establishment in various countries of message handling services in association with public networks creates the need to produce Recommendations covering the aspects of public message handling services. CONTENTS 1 Purpose and scope 2 MT service 3 Operation of the service 4 Quality of service 5 Network requirements 6 Use of Message Transfer service within CCITT defined telematic services Annex A – Abbreviations Appendix I – Errata to Recommendation F.415 1 Purpose and scope 1.1 General This Recommendation specifies the general, operational and quality of service aspects of the public international Message Transfer service. This type of Message Handling (MH) service is an international telecommunication service offered by Administrations, enabling subscribers’ user agents to submit standardized classes of messages to Message Transfer agents for their transfer to another Message Transfer agent in the same Administration’s domain, in another Administration’s domain, or to private domains, via telecommunication networks using store and forward techniques. The Message Transfer service also may transfer messages submitted through a message store (MS), and delivered to a message store, and to and from access units (AUs) to other services. Locally provided functions, for which communication with other user agents or message transfer agents is not required, are not covered by CCITT Recommendations. The Message Transfer (MT) service enables subscribers to request a variety of features to be performed during the transfer of messages. Some features are inherent in the basic MT service. Other non-basic features may be selected by the subscriber, either on a per-message basis or for an agreed contractual period of time, if they are provided by Administrations. Elements of service belonging to the basic Message Transfer service and essential optional user facilities are to be made available internationally by Administrations. Recommendation F.410 (08/92) 1 MT service may be provided using any physical network. MT service may be offered separately or in combination with various telematic or data communication services. It can be obtained by making appropriate arrangements. Technical specifications and protocols, to be used in the MT service are defined in the X.400-Series of Recommendations. The service definition is contained in § 2. Sections 3 and 4 describe the operation of the service and quality of service, and network requirements are given in § 5. 1.2 Message handling systems used in the provision of Message Transfer service 1.2.1 1984 and 1992 implementations This Recommendation assumes that the message handling systems implemented to provide the service outlined herein are based on the 1992 version of the X.400-Series of technical Recommendations. It is recognized however, that for some time after the publication of this Recommendation, several implementations of Message Transfer service will still be based on the 1984 X.400-Series of Recommendations. 1.2.2 1988 and 1992 implementations Minor revisions between 1988 and 1992 MH service Recommendations are referenced in Annex C of F.4

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