ATIS 1000628-2000 Emergency Calling Service.pdf
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1、 AMERICAN NATIONAL STANDARD FOR TELECOMMUNICATIONS ATIS-1000628.2000(R2015) Emergency Calling Service As a leading technology and solutions development organization, ATIS brings together the top global ICT companies to advance the industrys most-pressing business priorities. Through ATIS committees
2、and forums, nearly 200 companies address cloud services, device solutions, emergency services, M2M communications, cyber security, ehealth, network evolution, quality of service, billing support, operations, and more. These priorities follow a fast-track development lifecycle from design and innovat
3、ion through solutions that include standards, specifications, requirements, business use cases, software toolkits, and interoperability testing. ATIS is accredited by the American National Standards Institute (ANSI). ATIS is the North American Organizational Partner for the 3rd Generation Partnershi
4、p Project (3GPP), a founding Partner of oneM2M, a member and major U.S. contributor to the International Telecommunication Union (ITU) Radio and Telecommunications sectors, and a member of the Inter-American Telecommunication Commission (CITEL). For more information, visit . AMERICAN NATIONAL STANDA
5、RD Approval of an American National Standard requires review by ANSI that the requirements for due process, consensus, and other criteria for approval have been met by the standards developer. Consensus is established when, in the judgment of the ANSI Board of Standards Review, substantial agreement
6、 has been reached by directly and materially affected interests. Substantial agreement means much more than a simple majority, but not necessarily unanimity. Consensus requires that all views and objections be considered, and that a concerted effort be made towards their resolution. The use of Ameri
7、can National Standards is completely voluntary; their existence does not in any respect preclude anyone, whether he has approved the standards or not, from manufacturing, marketing, purchasing, or using products, processes, or procedures not conforming to the standards. The American National Standar
8、ds Institute does not develop standards and will in no circumstances give an interpretation of any American National Standard. Moreover, no person shall have the right or authority to issue an interpretation of an American National Standard in the name of the American National Standards Institute. R
9、equests for interpretations should be addressed to the secretariat or sponsor whose name appears on the title page of this standard. CAUTION NOTICE: This American National Standard may be revised or withdrawn at any time. The procedures of the American National Standards Institute require that actio
10、n be taken periodically to reaffirm, revise, or withdraw this standard. Purchasers of American National Standards may receive current information on all standards by calling or writing the American National Standards Institute. Notice of Disclaimer theirexistence does not in any respect preclude any
11、one, whether he has approvedthe standards or not, from manufacturing, marketing, purchasing, or usingproducts, processes, or procedures not conforming to the standards.The American National Standards Institute does not develop standards andwill in no circumstances give an interpretation of any Ameri
12、can NationalStandard. Moreover, no person shall have the right or authority to issue aninterpretation of an American National Standard in the name of the AmericanNational Standards Institute. Requests for interpretations should beaddressed to the secretariat or sponsor whose name appears on the titl
13、epage of this standard.CAUTION NOTICE: This American National Standard may be revised orwithdrawn at any time. The procedures of the American National StandardsInstitute require that action be taken periodically to reaffirm, revise, orwithdraw this standard. Purchasers of American National Standards
14、 mayreceive current information on all standards by calling or writing the AmericanNational Standards Institute.American National StandardPublished byAlliance for Telecommunications Industry Solutions1200 G. St., NW, Washington, D.C. 20005Copyright 2000 by Alliance for Telecommunications Industry So
15、lutionsAll rights reserved.No part of this publication may be reproduced in anyform, in an electronic retrieval system or otherwise,without prior written permission of the copyright holder.Printed in the United States of AmericaiContentsPage1 Scope, Purpose, and Application . 12 Normative References
16、 13 Definitions. 24 Description of Emergency Calling Service . 55 Functional Capabilities and Information Flows . 126 Switching and Signaling Specification for ECS at the User-Network Interface. 147 Switching and Signaling Specification for ECS at Interexchange Interfaces 288 Specification for Proto
17、col Interworking . 35iiForeword (This foreword is not part of American National Standard T1.628-2000.)This standard specifies the protocol and procedures applicable for the support ofEmergency Calling Service in an Integrated Services Digital Network (ISDN). This standard was developed by Working Gr
18、oup T1S1.3 and T1S1.7 of AccreditedStandards Committee T1 - Telecommunications. Suggestions for improvement of this standard will be welcome. They should be sentto the Alliance for Telecommunications Industry Solutions, T1 Secretariat, 1200 GStreet NW, Suite 500, Washington, DC, 20005.This standard
19、was processed and approved for submittal to ANSI by AccreditedStandards Committee T1 - Telecommunications. Committee approval of the standarddoes not imply that all committee members voted for its approval. At the time it ap-proved this standard, Accredited Standards Committee T1 had the following m
20、em-bers:G. H. Peterson, T1 ChairmanE. Raymond Hapeman, Vice-ChairJ. A. Crandall, T1 DirectorSusan M. Carioti, T1 DisciplinesSteven D. Barclay, T1 SecretarySelvam Rengasami, Technical EditorOrganization Represented Name of RepresentativeEXCHANGE CARRIERSAT the maximum number of occurrences is network
21、 dependent. 6 Included when the PSAP is invoking E9-1-1 call linking capability. T1.628-2000 16 6.1.1.2 FACILITY See T1.610. 6.1.2 Codesets The Facility information element is defined in T1.610 to be in codeset 0. In addition, the Generic Information infor-mation element and the Emergency call contr
22、ol information element are in codeset “5”. 6.1.3 Information elements The following information elements are applicable to the operation of ECS: Generic information, Emergency call control, and Facility. 6.1.3.1 Generic information The purpose of the Generic information (GI) information element is t
23、o allow the transmittal of generic information across an ISDN interface. The GI information element is coded as shown in Figure 7. 8 7 6 5 4 3 2 1 Octet Generic information information element identifier 0 0 0 1 0 0 1 0 1 Length of Generic information contents 2 1 0 0 Type of information ext. spare
24、3 Information 4 etc. Figure 7 - Generic information information element Type of information (octet 3) Bits 5 4 3 2 1 0 0 0 0 1 Calling Geodetic Location information (Note) 0 1 1 0 1 Location identification number All other values are reserved NOTE - The Type of Information coding value of Calling Ge
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