1、 International Telecommunication Union ITU-T J.171.0TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU (11/2005) SERIES J: CABLE NETWORKS AND TRANSMISSION OF TELEVISION, SOUND PROGRAMME AND OTHER MULTIMEDIA SIGNALS IPCablecom IPCablecom trunking gateway control protocol (TGCP): Profiles overview ITU-T
2、Recommendation J.171.0 ITU-T Rec. J.171.0 (11/2005) i ITU-T Recommendation J.171.0 IPCablecom trunking gateway control protocol (TGCP): Profiles overview Summary This Recommendation identifies the two alternative profiles in ITU-T Recs J.171.1 and J.171.2 for the trunking gateway control protocol in
3、terface. Source ITU-T Recommendation J.171.0 was approved on 29 November 2005 by ITU-T Study Group 9 (2005-2008) under the ITU-T Recommendation A.8 procedure. ii ITU-T Rec. J.171.0 (11/2005) FOREWORD The International Telecommunication Union (ITU) is the United Nations specialized agency in the fiel
4、d 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 and issuing Recommendations on them with a view to standardizing telecommunications on a worldwide basis. The Wor
5、ld 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 these topics. The approval of ITU-T Recommendations is covered by the procedure laid down in WTSA Resolution 1. In
6、 some areas 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 recog
7、nized operating 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 wor
8、ds “shall“ 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
9、 the practice 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 Recommendati
10、on development process. As 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, implementors are cautioned that this may not represent the latest information and ar
11、e therefore strongly urged to consult the TSB patent database. 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. J.171.0 (11/2005) iii CONTENTS Page 1 Scope 1 2 References. 1 2.1 Normative ref
12、erences 1 3 Definitions 1 4 Abbreviations and acronyms 1 5 Protocol profiles overview 1 ITU-T Rec. J.171.0 (11/2005) 1 ITU-T Recommendation J.171.0 IPCablecom trunking gateway control protocol (TGCP): Profiles overview 1 Scope This Recommendation is an overview of IPCablecom profiles of an Applicati
13、on Programming Interface (API) and Trunking Gateway Control Protocol (TGCP) for controlling voice-over-IP (VoIP) PSTN Media Gateways from external call control elements. 2 References 2.1 Normative references The following ITU-T Recommendations and other references contain provisions which, through r
14、eference in this text, constitute provisions of this Recommendation. At the time of publication, the editions indicated were valid. All Recommendations and other references are subject to revision; users of this Recommendation are therefore encouraged to investigate the possibility of applying the m
15、ost recent edition of the Recommendations and other references listed below. A list of the currently valid ITU-T Recommendations is regularly published. The reference to a document within this Recommendation does not give it, as a stand-alone document, the status of a Recommendation. ITU-T Recommend
16、ation J.171.1 (2005), IPCablecom trunking gateway control protocol (TGCP): Profile 1. ITU-T Recommendation J.171.2 (2005), IPCablecom trunking gateway control protocol (TGCP): Profile 2. 3 Definitions This Recommendation does not define any terms. 4 Abbreviations and acronyms This Recommendation doe
17、s not define any new abbreviations and acronyms. 5 Protocol profiles overview This Recommendation specifies two alternate profiles for controlling the PSTN gateways from external call control elements. Profile 1 specified in ITU-T Rec. J.171.1 is based on the IPCablecom network-based call signalling
18、 (ITU-T Rec. J.162) and IETF RFC 2705, Media Gateway Control Protocol (MGCP). ITU-T Rec. J.171.2 is a profile of ITU-T Rec. H.248.1 version 2 (05/2002) Profile. Only one of the two profiles is required for the trunking gateway control protocol interface. Printed in Switzerland Geneva, 2006 SERIES OF
19、 ITU-T RECOMMENDATIONS Series A Organization of the work of ITU-T Series D General tariff 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 a
20、nd networks Series H Audiovisual and multimedia systems Series I Integrated services digital 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 cab
21、les and other elements of outside plant Series M Telecommunication management, including 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, teleph
22、one installations, local line networks Series Q Switching and signalling Series R Telegraph 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
