1、 International Telecommunication Union ITU-T A.13TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU Amendment 1(12/2007) SERIES A: ORGANIZATION OF THE WORK OF ITU-T Supplements to ITU-T Recommendations Amendment 1: Approval of a supplement at a working party meeting ITU-T Recommendation A.13 (2000) Ame
2、ndment 1 ITU-T Rec. A.13 (2000)/Amd.1 (12/2007) i ITU-T Recommendation A.13 Supplements to ITU-T Recommendations Amendment 1 Approval of a supplement at a working party meeting Source Amendment 1 to ITU-T Recommendation A.13 (2000) was approved on 7 December 2007 by the Telecommunication Standardiza
3、tion Advisory Group (2005-2008) under the WTSA Resolution 1 procedure. ii ITU-T Rec. A.13 (2000)/Amd.1 (12/2007) FOREWORD The International Telecommunication Union (ITU) is the United Nations specialized agency in the field of telecommunications, information and communication technologies (ICTs). Th
4、e ITU Telecommunication Standardization Sector (ITU-T) is a permanent organ of ITU. ITU-T 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 World Telecommunication Standa
5、rdization Assembly (WTSA), which meets every four years, establishes the topics for study by the ITU-T study groups which, in turn, produce Recommendations on these topics. The approval of ITU-T Recommendations is covered by the procedure laid down in WTSA Resolution 1. In some areas of information
6、technology which fall within ITU-Ts purview, the necessary standards are prepared on a collaborative basis with ISO and IEC. NOTE In this Recommendation, the expression “Administration“ is used for conciseness to indicate both a telecommunication administration and a recognized operating agency. Com
7、pliance with this Recommendation is voluntary. However, the Recommendation may contain certain mandatory provisions (to ensure e.g. interoperability or applicability) and compliance with the Recommendation is achieved when all of these mandatory provisions are met. The words “shall“ or some other ob
8、ligatory language such as “must“ and the negative equivalents are used to express requirements. The use of such words does not suggest that compliance with the Recommendation is required of any party. INTELLECTUAL PROPERTY RIGHTS ITU draws attention to the possibility that the practice or implementa
9、tion of this Recommendation may involve the use of a claimed Intellectual Property Right. ITU takes no position concerning the evidence, validity or applicability of claimed Intellectual Property Rights, whether asserted by ITU members or others outside of the Recommendation development process. As
10、of the date of approval of this Recommendation, ITU had not received notice of intellectual property, protected by patents, which may be required to implement this Recommendation. However, implementers are cautioned that this may not represent the latest information and are therefore strongly urged
11、to consult the TSB patent database at http:/www.itu.int/ITU-T/ipr/. ITU 2008 All rights reserved. No part of this publication may be reproduced, by any means whatsoever, without the prior written permission of ITU. ITU-T Rec. A.13 (2000)/Amd.1 (12/2007) 1 ITU-T Recommendation A.13 Supplements to ITU
12、-T Recommendations Amendment 1 Approval of a supplement at a working party meeting 1) Clause 2.2 Modify clause 2.2 as follows: 2.2 Supplements do not require approval according to Resolution 1 or Recommendation A.8 procedures; agreement by the study group or by TSAG (in case of a Supplement develope
13、d by TSAG) is sufficient. A working party may agree to a Supplement if the study group that set up the working party has previously identified this Supplement and has authorized the working party to do so at the previous study group meeting provided that such Supplement is not related or linked to a
14、ny Recommendation having policy or regulatory implications in accordance with Nos. 246D to 246 H of the ITU Convention. Printed in Switzerland Geneva, 2008 SERIES OF ITU-T RECOMMENDATIONS Series A Organization of the work of ITU-T Series D General tariff principles Series E Overall network operation
15、, telephone service, service operation and human factors Series F Non-telephone telecommunication services Series G Transmission systems and media, digital systems and networks Series H Audiovisual and multimedia systems Series I Integrated services digital network Series J Cable networks and transm
16、ission of television, sound programme and other multimedia signals Series K Protection against interference Series L Construction, installation and protection of cables and other elements of outside plant Series M Telecommunication management, including TMN and network maintenance Series N Maintenan
17、ce: international sound programme and television transmission circuits Series O Specifications of measuring equipment Series P Telephone transmission quality, telephone installations, local line networks Series Q Switching and signalling Series R Telegraph transmission Series S Telegraph services te
18、rminal equipment Series T Terminals for telematic services Series U Telegraph switching Series V Data communication over the telephone network Series X Data networks, open system communications and security Series Y Global information infrastructure, Internet protocol aspects and next-generation networks Series Z Languages and general software aspects for telecommunication systems
