1、 International Telecommunication Union ITU-T Q.762TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU Amendment 4(09/2006) SERIES Q: SWITCHING AND SIGNALLING Specifications of Signalling System No. 7 ISDN user partSignalling System No. 7 ISDN user part general functions of messages and signals Amendment
2、 4: Transport of Voice Enhancement Device related information ITU-T Recommendation Q.762 (1999) Amendment 4 ITU-T Q-SERIES RECOMMENDATIONS SWITCHING AND SIGNALLING SIGNALLING IN THE INTERNATIONAL MANUAL SERVICE Q.1Q.3 INTERNATIONAL AUTOMATIC AND SEMI-AUTOMATIC WORKING Q.4Q.59 FUNCTIONS AND INFORMATI
3、ON 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 Q.600Q.699 SPECIFICATIONS OF SIGNALLING SYSTEM No. 7 Q.700Q.799 Ge
4、neral Q.700 Message transfer part (MTP) Q.701Q.710 Signalling connection control part (SCCP) Q.711Q.719 Telephone user part (TUP) Q.720Q.729 ISDN supplementary services Q.730Q.739 Data user part Q.740Q.749 Signalling System No. 7 management Q.750Q.759 ISDN user part Q.760Q.769 Transaction capabiliti
5、es application part Q.770Q.779 Test specification Q.780Q.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 PROT
6、OCOLS 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.762 (1999)/Amd.4 (09/2006) i ITU-T Recommendation Q.762 Signall
7、ing System No. 7 ISDN user part general functions of messages and signals 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/Function related information. This amendment contains the
8、 modifications to ITU-T Rec. Q.762 (1999) in order to accommodate these needs. This amendment should be read in conjunction with Amendment 5 to ITU-T Rec. Q.763, and Amendment 5 to ITU-T Rec. Q.764. Source Amendment 4 to ITU-T Recommendation Q.762 (1999) was approved on 13 September 2006 by ITU-T St
9、udy Group 11 (2005-2008) under the ITU-T Recommendation A.8 procedure. ii ITU-T Rec. Q.762 (1999)/Amd.4 (09/2006) FOREWORD The International Telecommunication Union (ITU) is the United Nations specialized agency in the field of telecommunications. The ITU Telecommunication Standardization Sector (IT
10、U-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 Standardization Assembly (WTSA), which meets every four
11、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 technology which fall within ITU-Ts purview, the n
12、ecessary 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. Compliance with this Recommendation is voluntary. How
13、ever, 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 obligatory language such as “must“ and the negative
14、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 implementation of this Recommendation may involve the use of
15、 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 of the date of approval of this Recommendation, IT
16、U 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 to consult the TSB patent database at http:/www.it
17、u.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.762 (1999)/Amd.4 (09/2006) iii CONTENTS Page 1) Clause 1.4 Abbreviations. 1 2) Clause 3 Signalling parameters . 1 3) Claus
18、e 4 Parameter information 1 ITU-T Rec. Q.762 (1999)/Amd.4 (09/2006) 1 ITU-T Recommendation Q.762 Signalling System No. 7 ISDN user part general functions of messages and signals Amendment 4 Transport of Voice Enhancement Device related information 1) Clause 1.4 Abbreviations Insert the following new
19、 abbreviation alphabetically: VED Voice Enhancement Device 2) Clause 3 Signalling parameters Add the following definition to clause 3: 3.103 VED information: Information sent in either direction giving information about the inclusion of a voice enhancement device in the call. 3) Clause 4 Parameter i
20、nformation Add the following definition to clause 4: 4.163 VED: Information indicating if acoustic echo control and/or noise reduction has been included in the bearer. Printed in Switzerland Geneva, 2006 SERIES OF ITU-T RECOMMENDATIONS Series A Organization of the work of ITU-T Series D General tari
21、ff principles Series E Overall network operation, 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 di
22、gital network Series J Cable networks and transmission 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, includin
23、g TMN and network maintenance Series N Maintenance: 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 Teleg
24、raph transmission Series S Telegraph services 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
