1、 International Telecommunication Union ITU-T Q.1902.3TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU Amendment 4(09/2006) 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 4: Transport of Voice Enhancement Device related information ITU-T Recommendation Q.1902.3 (2001) Amendment 4 ITU-T Q-SERIES RECOMMENDATIONS SWITCHING AND SIGNALLING SIGNALLING IN THE INTERNATIONAL MANUAL SERVICE Q.1Q.3 INTERNATIONA
3、L AUTOMATIC 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 SYST
4、EMS 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 A
5、ND 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 For further details, please refer to the list of ITU-T Recommendations. ITU-T Rec. Q.1902.3 (2001)/Amd.4 (09/2006) i ITU-T Recommendation Q.1
6、902.3 Bearer Independent Call Control protocol (Capability Set 2) and Signalling System No. 7 ISDN user part: Formats and codes Amendment 4 Transport of Voice Enhancement Device related information Summary This amendment was produced to meet the need for the transport of Voice Enhancement Device/Fun
7、ction related information. This amendment contains the modifications to ITU-T Rec. Q.1902.3 (2001) in order to accommodate these needs. This amendment should be read in conjunction with Amendment 4 to ITU-T Rec. Q.1902.2, and Amendment 4 to ITU-T Rec. Q.1902.4. Source Amendment 4 to ITU-T Recommenda
8、tion Q.1902.3 (2001) was approved on 13 September 2006 by ITU-T Study Group 11 (2005-2008) under the ITU-T Recommendation A.8 procedure. ii ITU-T Rec. Q.1902.3 (2001)/Amd.4 (09/2006) FOREWORD The International Telecommunication Union (ITU) is the United Nations specialized agency in the field of tel
9、ecommunications. The 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 Telec
10、ommunication 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 these topics. The approval of ITU-T Recommendations is covered by the procedure laid down in WTSA Resolution 1. In some ar
11、eas of information 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 op
12、erating agency. Compliance 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 “shal
13、l“ or some other obligatory 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 pra
14、ctice or implementation 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 devel
15、opment process. As of the date of approval of this Recommendation, ITU had 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
16、strongly urged to consult the TSB patent database at http:/www.itu.int/ITU-T/ipr/. ITU 2006 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. Q.1902.3 (2001)/Amd.4 (09/2006) iii CONTENTS Page 1) Clause
17、 4 Abbreviations 1 2) Table 2 1 3) New clause 6.109 VED information 1 4) Tables 19, 28 and 38. 2 ITU-T Rec. Q.1902.3 (2001)/Amd.4 (09/2006) 1 ITU-T Recommendation Q.1902.3 Bearer Independent Call Control protocol (Capability Set 2) and Signalling System No. 7 ISDN user part: Formats and codes Amendm
18、ent 4 Transport of Voice Enhancement Device related information 1) Clause 4 Abbreviations Add the following new abbreviation alphabetically: VED Voice Enhancement Device 2) Table 2 Modify Table 2 in order to introduce the following new VED information parameter (6.109): Table 2/Q.1902.3 Parameter na
19、me codes Parameter name Reference (clause) Code Note : VED information : 6.109 : 1010 1000 3) New clause 6.109 VED information Add new clause 6.109 as follows: 6.109 VED information The format of the VED information parameter field is shown in Figure 126. 8 7 6 5 4 3 2 1 1a ext. 1 VED Figure 126/Q.1
20、902.3 Voice Enhancement Device information parameter field The following codes are used in the Voice Enhancement Device information parameter field: 00 no acoustic echo control included, no noise reduction included (default) 01 no acoustic echo control included, noise reduction included 10 acoustic
21、echo control included, no noise reduction included 11 acoustic echo control included, noise reduction included 2 ITU-T Rec. Q.1902.3 (2001)/Amd.4 (09/2006) 4) Tables 19, 28 and 38 Modify Tables 19, 28 and 38 to introduce the VED message parameter. Table 19/Q.1902.3 Message Type: Answer Parameter Ref
22、erence (subclause) Type Length (octets) : : : : Voice Enhancement Device information 6.109 O 1 : : : : Table 28/Q.1902.3 Message Type: Connect Parameter Reference (subclause) Type Length (octets) : : : : Voice Enhancement Device information 6.109 O 1 : : : : Table 38/Q.1902.3 Message Type: Initial a
23、ddress Parameter Reference (subclause) Type Length (octets) : : : : Voice Enhancement Device information 6.109 O 1 : : : : Printed in Switzerland Geneva, 2006 SERIES OF ITU-T RECOMMENDATIONS Series A Organization of the work of ITU-T Series D General tariff principles Series E Overall network operat
24、ion, 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 tra
25、nsmission 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 Mainte
26、nance: 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
27、 terminal 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
