1.1本指南建议使用北美标准紧急电话号码9-1-1增强公共安全服务的最低性能要求。 1.2本指南为州、县和地方司法机构开发9-1-1增强系统提供帮助。 1.3本指南针对9-1-1增强型系统开发中的规划和组织需求提出了建议。 1.4本指南不涉及通过9-1-1电话号码以外的方式获得公共安全响应服务。 1.5本指南仅适用于数字9的使用- 1-1请求公共安全响应，从呼叫开始到呼叫者连接到责任机构，或接收到处理呼叫所需的基本信息，或两者。 1.6本指南各节按以下顺序排列: 部分 范围 1. 术语 2. 意义和用途 3. 9-1-1电话系统的操作概念 4. 9-1-1性能系数 4.1 9-1-1性能要求 4.2 协调9-1-1系统 5. 州9-1-1法律规定 6. 9-1-1资金 7. 资金替代方案 7.1 资金考虑 7.2 地理数据库 8. 自动位置识别 8.1 统一地址程序 8.2 选择性呼叫路由 8.3 服务区域 8.4 其他规划问题 9 公共教育 9.1 人员培训 9.2 1.7 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的用户有责任在使用前制定适当的安全和健康实践，并确定监管限制的适用性。

1.1 This guide recommends minimum performance requirements for enhanced access to public safety services using the North American standard emergency telephone number, 9-1-1. 1.2 This guide provides assistance to states, counties, and local jurisdictions in the development of 9-1-1 enhanced systems. 1.3 This guide makes recommendations for planning and organizational needs in the development of 9-1-1 enhanced systems. 1.4 This guide does not address access to public safety response services through means other than use of the 9-1-1 telephone number. 1.5 This guide applies only to the use of the number 9-1-1 to request a public safety response, from the point of initiation of the call through the point that the caller is connected to the responsible agency, or essential information needed for disposition of the call, or both, is received. 1.6 The sections in this guide are arranged in the following order: Section Scope 1 Terminology 2 Significance and Use 3 Concept of Operation for 9-1-1 Telephone Systems 4 9-1-1 Performance Factors 4.1 9-1-1 Performance Requirements 4.2 Coordinating 9-1-1 Systems 5 State 9-1-1 Statutory Provisions 6 9-1-1 Funding 7 Funding Alternatives 7.1 Funding considerations 7.2 Geographical Data Bases 8 Automatic Location Identification 8.1 Uniform Address Program 8.2 Selective Call Routing 8.3 Service Areas 8.4 Other Planning Concerns 9 Public Education 9.1 Personnel Training 9.2 1.7 This standard does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.