1、 CCITT RECMNaF-82 91 4862573 0563338 9 ITERNATIONAL TELECOMMUNICATION UNION F.82 CCITT THE INTERNATIONAL TELEGRAPH AND TELEPHONE CONSULTATIVE COMMITTEE TELEGRAPH AND MOBILE SERVICES OPERATIONS AND QUALITY OF SERVICE OPERATIONAL PROVISIONS TO PERMIT INTERWORKING BETWEEN THE INTERNATIONAL TELEX SERV
2、ICE AND THE INTEX SERVICE Recommendation F.82 I Geneva, 1991 - CCITT RECMNMF.82 91 4862591 0563139 O NTERNATIONAL TELECOMMUNICATION UNION CCITT THE INTERNATIONAL TELEGRAPH AND TELEPHONE CONS U LTATI VE COM M ITTEE TELEGRAPH AND MOBILE SERVICES OPERATIONS AND QUALITY OF SERVICE F.82 OPERATIONAL PROVI
3、SIONS TO PERMIT INTERWORKING BETWEEN THE INTERNATIONAL TELEX SERVICE AND THE INTEX SERVICE Recommendation F.82 Geneva, 1991 - CCITT RECMN*F-B2 91 4862593 0563340 7 FOREWORD The CCIT (the International Telegraph and Telephone Consultative Committee) is a permanent organ of the International Telecommu
4、nication Union (ITTJ). CCIT 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 CCITI which meets every four years, establishes the topics for study and
5、 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 CCIT Resolution No. 2 (Melbourne, 1988). Recommendation F.82 was prepared by Study Group I and was approved under the Re
6、solution No. 2 procedure on the 11th of October 1991. CClT NOTE In this Recommendation, the expression “Administration” is used for conciseness to indicate both a telecommunication Administration and a recognized private operating agency. o ITU 1991 All rights reserved. No part of this publication m
7、ay be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the lTU. CCITT RECMN*F.BZ 91 = YBb259L 056LL4L 9 H Recommendation F.82 OPERATIONAL PROVISIONS TO PERMIT INTERWORKING BETWEEN THE INTERNATIONAL
8、TELEX SERVICE AND THE INTEX SERVICE 1 introduction 1.1 interworking capability with the international telex service is provided. With the development of the Intex service there may be benefits to both customers and Administrations if an The service and operational provisions of the Intex service are
9、 described in Recommendation F.150. 2 Scope 2.1 of the international telex service and Intex terminals. This Recommendation sets out service and operational principles to permit interworking between terminais 3 Principles of interworking 3.1 These principles will provide for, but wii not be limited
10、to, real-time communication between terminal equipment. 3.2 The Quality of Service of the international telex service must not be degraded by any such interworking, nor will there be any burden placed on the international telex service. 3.3 There will be no requirement for the calling party to be aw
11、are of the characteristics of the called party for the purposes of call establishment and information transfer. 3.4 The format and the content of the message as printed at the transmitting and receiving terminal should be the same. 3.5 The international destination codes will be in accordance with R
12、ecommendation F.69. Further discrimination within national networks will be at the discretion of individual Administrations. 4 Operation 4.1 Telex to Intex direction 4.1.1 Cas should be established and cleared using normal telex call Set-up and clearing procedures. 4.1.2 The service and operational
13、provisions of Recommendation F.60 shall apply. 4.1.3 The answerback returned to the calling telex subscriber at call establishment or in response to a WRU signal during the text transfer stage shall be in accordance with the answerback requirements as specified in Recommendation F.60. 4.2 Intex to t
14、elex direction 4.2.1 Calls should be established and cleared using normal Intex call Set-up and clearing procedures. i) The use of the name Intex is conditional on it being freely available in Member countries and hence the name of the service Recommendation F.82 1 offered may vary from contry to co
15、ntry. 4.2.2 When the called party is a terminal of the international telex service, the service identifier TLX wiii be indicated at the Intex terminal. When the call is established in manual mode, the Intex operator should be informed if a previously prepared message contains non-ITA2 characters. Th
16、e procedures to be applied for automatic call Set-up in the case where the Intex operator is not aware of the characteristics of the cailed party terminal are for further study. 4.2.3 The received answerback shall be in accordance with Recommendation F.60. There are networks, however, which do not implement answerback composition in accordance with Recommendation F.60 and the interworking provision should take this into account. 4.2.4 Speed and code conversion may require flow control. Any flow control requirement will be the responsibility of the Intex service. 2 Recommendation F.82
