1、 International Telecommunication Union ITU-T Q.1902.3TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU Amendment 5(10/2009) SERIES Q: SWITCHING AND SIGNALLING Specifications of signalling related to Bearer Independent Call Control (BICC) Bearer Independent Call Control protocol (Capability Set 2) and
2、Signalling System No. 7 ISDN user part: Formats and codes Amendment 5: Support for the customized alerting tone (CAT) service Recommendation ITU-T Q.1902.3 (2001) Amendment 5 ITU-T Q-SERIES RECOMMENDATIONS SWITCHING AND SIGNALLING SIGNALLING IN THE INTERNATIONAL MANUAL SERVICE Q.1Q.3 INTERNATIONAL A
3、UTOMATIC AND SEMI-AUTOMATIC WORKING Q.4Q.59 FUNCTIONS AND INFORMATION FLOWS FOR SERVICES IN THE ISDN Q.60Q.99 CLAUSES APPLICABLE TO ITU-T STANDARD SYSTEMS Q.100Q.119 SPECIFICATIONS OF SIGNALLING SYSTEMS No. 4, 5, 6, R1 AND R2 Q.120Q.499 DIGITAL EXCHANGES Q.500Q.599 INTERWORKING OF SIGNALLING SYSTEMS
4、 Q.600Q.699 SPECIFICATIONS OF SIGNALLING SYSTEM No. 7 Q.700Q.799 Q3 INTERFACE Q.800Q.849 DIGITAL SUBSCRIBER SIGNALLING SYSTEM No. 1 Q.850Q.999 PUBLIC LAND MOBILE NETWORK Q.1000Q.1099 INTERWORKING WITH SATELLITE MOBILE SYSTEMS Q.1100Q.1199 INTELLIGENT NETWORK Q.1200Q.1699 SIGNALLING REQUIREMENTS AND
5、PROTOCOLS FOR IMT-2000 Q.1700Q.1799 SPECIFICATIONS OF SIGNALLING RELATED TO BEARER INDEPENDENT CALL CONTROL (BICC) Q.1900Q.1999 BROADBAND ISDN Q.2000Q.2999 SIGNALLING REQUIREMENTS AND PROTOCOLS FOR THE NGN Q.3000Q.3999 For further details, please refer to the list of ITU-T Recommendations. Rec. ITU-
6、T Q.1902.3 (2001)/Amd.5 (10/2009) i Recommendation ITU-T Q.1902.3 Bearer Independent Call Control protocol (Capability Set 2) and Signalling System No. 7 ISDN user part: Formats and codes Amendment 5 Support for the customized alerting tone (CAT) service Summary Amendment 5 to Recommendation ITU-T Q
7、.1902.3 was produced to meet the need for the implementation of the customized alerting tone (CAT) service as specified in ETSI TS 123.205 (2009). This amendment contains the modifications to Recommendation ITU-T Q.1902.3 (2001) in order to accommodate these needs. This amendment should be read in c
8、onnection with the related amendments to Recommendations ITU-T Q.1902.1 and ITU-T Q.1902.2. Source Amendment 5 to Recommendation ITU-T Q.1902.3 (2001) was approved on 29 October 2009 by ITU-T Study Group 11 (2009-2012) under Recommendation ITU-T A.8 procedures. ii Rec. ITU-T Q.1902.3 (2001)/Amd.5 (1
9、0/2009) FOREWORD The International Telecommunication Union (ITU) is the United Nations specialized agency in the field of telecommunications, information and communication technologies (ICTs). The ITU Telecommunication Standardization Sector (ITU-T) is a permanent organ of ITU. ITU-T is responsible
10、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 Standardization Assembly (WTSA), which meets every four years, establishes the topics for study by the ITU-T st
11、udy 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 technology which fall within ITU-Ts purview, the necessary standards are prepared on a collaborative basi
12、s 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. Compliance with this Recommendation is voluntary. However, the Recommendation may contain certain mandatory
13、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 obligatory language such as “must“ and the negative equivalents are used to express requirements. The use o
14、f 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 implementation of this Recommendation may involve the use of a claimed Intellectual Property Right. ITU takes no po
15、sition 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 received notice of intellectual property, protect
16、ed 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 to consult the TSB patent database at http:/www.itu.int/ITU-T/ipr/. ITU 2010 All rights reserved. No part of
17、this publication may be reproduced, by any means whatsoever, without the prior written permission of ITU. Rec. ITU-T Q.1902.3 (2001)/Amd.5 (10/2009) iii CONTENTS Page 1) Clause 2 References. 1 2) Clause 4 Abbreviations 1 3) Table 2 1 4) Table 18 1 5) Table 22 2 6) Table 38 2 7) Table 46 2 8) New cla
18、use 6.110 Forward customized alerting tone indicators . 2 9) New clause 6.111 Backward customized alerting tone indicators 3 Rec. ITU-T Q.1902.3 (2001)/Amd.5 (10/2009) 1 Recommendation ITU-T Q.1902.3 Bearer Independent Call Control protocol (Capability Set 2) and Signalling System No. 7 ISDN user pa
19、rt: Formats and codes Amendment 5 Support for the customized alerting tone (CAT) service 1) Clause 2 References Add the following reference: 2 ETSI TS 123.205 (2009), Bearer-independent circuit-switched core network; Stage 2. 2) Clause 4 Abbreviations Add the following abbreviation in alphabetical o
20、rder: CAT Customized Alerting Tone 3) Table 2 Modify Table 2 in order to introduce the following new forward CAT indicators (6.110) and new backward CAT indicators (6.111): Table 2 Parameter name codes Parameter name Reference (clause) Code Note Forward CAT indicators 6.110 1 0 0 0 1 1 1 0 Backward
21、CAT indicators 6.111 1 0 0 0 1 1 1 1 4) Table 18 Modify Table 18 to include the backward CAT indicators parameter in the ACM message. Table 18 Message type: Address Complete Parameter Reference (clause) Type Length (octets) Backward CAT indicators 6.111 O 1 2 Rec. ITU-T Q.1902.3 (2001)/Amd.5 (10/200
22、9) 5) Table 22 Modify Table 22 to include the backward CAT indicators parameter in the CPG message. Table 22 Message type: Call progress Parameter Reference (clause) Type Length (octets) Backward CAT indicators 6.111 O 1 6) Table 38 Modify Table 38 to include the forward CAT indicators parameter in
23、the IAM message. Table 38 Message type: Initial Address Parameter Reference (clause) Type Length (octets) Forward CAT indicators 6.110 O 3 7) Table 46 Modify Table 46 to include the forward CAT indicators parameter or backward CAT indicators parameter in the SEG message. Table 46 Message type: Segme
24、ntation Parameter Reference (clause) Type Length (octets) Forward CAT indicators 6.110 O 3 Backward CAT indicators 6.111 O 1 8) New clause 6.110 Forward customized alerting tone indicators Add new clause 6.110 defining the forward CAT indicators parameter as follows: 6.110 Forward customized alertin
25、g tone indicators The format of the forward customized alerting tone indicators parameter field is shown in Figure 127. 8 7 6 5 4 3 2 1 spare spare spare spare spare C B A Figure 127 Forward customized alerting tone indicators parameter field Rec. ITU-T Q.1902.3 (2001)/Amd.5 (10/2009) 3 The followin
26、g codes are used in the forward CAT indicators parameter field: Bit A Multimedia CAT capability indicator 0 No indication 1 CAT supported Bits C B CAT Priority indicator 0 0 no indication 0 1 Priority given to Calling party (CAT-A) 1 0 Priority given to Called party (CAT-B) 1 1 Spare See ETSI TS 123
27、.205 2 for a description of the related service and procedures. 9) New clause 6.111 Backward customized alerting tone indicators Add new clause 6.111 defining the backward CAT indicators parameter as follows: 6.111 Backward customized alerting tone indicators The format of the backward customized al
28、erting tone indicators parameter field is shown in Figure 128. 8 7 6 5 4 3 2 1 spare spare spare spare spare spare spare A Figure 128 Backward Customized Alerting Tone parameter field The following codes are used in the backward CAT indicators parameter field: Bit A CAT content indicator 0 No indica
29、tion 1 Inband media content available See ETSI TS 123.205 2 for a description of the related service and procedures. Printed in Switzerland Geneva, 2010 SERIES OF ITU-T RECOMMENDATIONS Series A Organization of the work of ITU-T Series D General tariff principles Series E Overall network operation, t
30、elephone 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 transmiss
31、ion 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 Maintenance:
32、 international sound programme and television transmission circuits Series O Specifications of measuring equipment Series P Terminals and subjective and objective assessment methods Series Q Switching and signalling Series R Telegraph transmission Series S Telegraph services terminal equipment Serie
33、s 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
