1、INTERNATIONAL TELECOMMUNICATION UNION ITU=T TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU Q.850 Amendment 1 (07/2001) SERIES Q: SWITCHING AND SIGNALLING Digital subscriber Signalling System No. 1 - General Usage of cause and location in the Digital Subscriber Signalling System No. 1 (DSSI) and the
2、 Signalling System No. 7 ISDN user part (ISUP) Amendment 1 ITU-T Recommendation Q.850 - Amendment 1 (Formerly CCITT Recommendation) ITU-T Q-SERIES RECOMMENDATIONS SWITCHING AND SIGNALLING SIGNALLING IN THE INTERNATIONAL MANUAL SERVICE FCTNCTIONS AND INFORMATION FLOWS FOR SERVICES IN THE ISDN CLAUSES
3、 APPLICABLE TO ITU-T STANDARD SYSTEMS SPECIFICATIONS OF SIGNALLING SYSTEMS No. 4 AND No. 5 SPECIFICATIONS OF SIGNALLING SYSTEM No. 6 SPECIFICATIONS OF SIGNALLING SYSTEM R1 SPECIFICATIONS OF SIGNALLING SYSTEM FU DIGITAL EXCHANGES INTERWORKING OF SIGNALLING SYSTEMS SPECIFICATIONS OF SIGNALLING SYSTEM
4、No. 7 43 INTERFACE DIGITAL SUBSCRIBER SIGNALLING SYSTEM No. 1 PUBLIC LAND MOBILE NETWORK INTERWORKING WITH SATELLITE MOBILE SYSTEMS INTELLIGENT NETWORK INTERNATIONAL AUTOMATIC AND SEMI-AUTOMATIC WORKLNG SIGNALLING REQUIREMENTS AND PROTOCOLS FOR IMT-2000 l SPECIFICATIONS OF SIGNALLING RELATED TO BEAR
5、ER INDEPENDENT CALL CONTROL (BICC) I BROADBANDISDN 4.14.3 4.4-4.59 Q.6O-Q.99 Q. 1OO-Q. 1 19 Q.12O-Q.249 Q.25O-Q.309 Q.31O-Q.399 Q.40O-Q.499 Q.50O-Q.599 Q.6OO-Q.699 Q.70O-Q.799 Q.80O-Q.849 Q.85O-Q.999 Qi5&Q:9_i * Q. 1 OOO-Q. 1099 Q.1 lOO-Q.1199 Q.120O-Q.1699 Q. 17004.1799 Q.190O-Q.1999 Q.200O-Q.2999
6、For further details, please refer to the list of ITU-T Recommendations. ITU-T Recommendation Q.850 Usage of cause and location in the Digital Subscriber Signalling System No. 1 (DSS1) and the Signalling System No. 7 ISDN user part (ISUP) AMENDMENT 1 Summary This amendment contains the modifications
7、to ITU-T Q.850 in order to reserve cause value No. 24, “Call rejected due to feature at the destination“. Source Amendment 1 to ITU-T Recommendation Q.850 was prepared by ITU-T Study Group 11 (2001 -2004) and approved under the WTSA Resolution 1 procedure on 13 July 200 1. ITU-T Q.850/Amd.l(07/2001)
8、 1 FOREWORD The International Telecommunication Union (ITU) is the United Nations specialized agency in the field of telecommunications. The ITU Telecommunication Standardization Sector (ITU-T) is a permanent organ of ITU. ITU-T is responsible for studying technical, operating and tariff questions a
9、nd issuing Recommendations on them with a view to standardizing telecommunications on a worldwide basis. The World Telecommunication Standardization Assembly (WTSA), which meets every four years, establishes the topics for study by the ITU-T study groups which, in turn, produce Recommendations on th
10、ese topics. The approval of ITU-T Recommendations is covered by the procedure laid down in WTSA Resolution 1. In some areas of information technology which fall within ITU-Ts purview, the necessary standards are prepared on a collaborative basis with IS0 and IEC. NOTE In this Recommendation, the exp
11、ression “Administration“ is used for conciseness to indicate both a telecommunication administration and a recognized operating agency. INTELLECTUAL PROPERTY RIGHTS U draws attention to the possibility that the practice or implementation of this Recommendation may involve the use of a claimed Intell
12、ectual 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 of the date of approval of this Recommendation, ITU had not receive
13、d notice of intellectual property, protected by patents, which may be required to implement this Recommendation. However, implementors are cautioned that this may not represent the latest information and are therefore strongly urged to consult the TSB patent database. o ITU 2002 All rights reserved.
14、 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 ITU. II ITU-T Q.850/Arnid.l(07/2001) ITU-T Recommendation Q.850 Cause Value No. 1000 24 Usage of cause and locati
15、on in the Digital Subscriber Signalling System No. 1 (DSS1) and the Signalling System No. 7 ISDN user part (ISUP) Definition Diagnostics Application Reference Location Remarks Call rejected due to DSSl/ISUP RLN feature at the destination AMENDMENT 1 The following new text should be added to the pres
16、ent Recommendation. 1) Table 1lQ.850 Add the following cause value: , Class 001 2) Clause 2.2.7.1.17 Add the following subclause to clause 2.2.7.1: 2.2.7.1.17 bis This cause indicates that the call has been rejected due to feature at the destination. Cause No. 24 - Call rejected due to feature at th
17、e destination ITU-T Q.850/Amd.l(07/2001) 1 SERIES OF ITU-T RECOMMENDATIONS Series A Series B Series C Series D Series E Series F Series G Series H Series I Series J Series K Series L Series M Series N Series O Series P Series Q Series R Series S Series T Series U Series V Series X Series Y Series Z
18、Organization of the work of RU-T Means of expression: definitions, symbols, classification General telecommunication statistics General tariff principles Overall network operation, telephone service, service operation and human factors Non-telephone telecommunication services Transmission systems an
19、d media, digital systems and networks Audiovisual and multimedia systems Integrated services digital network Cable networks and transmission of television, sound programme and other multimedia signals Protection against interference Construction, installation and protection of cables and other eleme
20、nts of outside plant TMN and network maintenance: international transmission systems, telephone circuits, telegraphy, facsimile and leased circuits Maintenance: intemational sound programme and television transmission circuits Specifications of measuring equipment Telephone transmission quality, tel
21、ephone installations, local line networks Switching and signalling Telegraph transmission Telegraph services terminal equipment Terminals for telematic services Telegraph switching Data communication over the telephone network Data networks and open system communications Global information infrastructure and Internet protocol aspects Languages and general software aspects for telecommunication systems Printed in Switzerland Geneva, 2002
