9-1-1PG: being on good terms with the terms

What is Location-to-Service Translation, or LoST protocol? What is an ESInet and how does it underpin 9-1-1PG? The new 9-1-1PG platform brings state-of-the-art technology, new public safety standards and, by extension, many new terms to add to our vocabulary.

Thus, on the brink of our familiarization with the technologies behind the next generation of 9-1-1 services, we have already begun to integrate new entities and new words, acronyms and processes. In this blog post, I’ve tried to summarize some key terms that are commonly used to describe the various components of the 9-1-1PG service. This is not a complete list of public safety jargon, but rather a beginner’s guide explaining the most popular terms used in the GIS area for 9-1-1PG .

  • Governing Authority of 9-1-1 Services

A provincial, regional or other government entity with administrative jurisdiction over a particular 9-1-1 system. For example, the administration of a regional district or municipality, a provincial government, a specialized 9-1-1 service or the district emergency communication service, a government board or similar body .

  • Automatic address display (AAA)

Automatic display at the Public Safety Answering Point (PSAP) of the caller’s telephone number, address and location of the telephone, and additional information regarding emergency services at the location of the call where does a call come from?

  • Automatic Vehicle Location (LAV)

One way to determine the geographic location of a vehicle and to convey that information to a point where it can be used.

  • Computer Assisted Distribution

A computerized system that assists 9-1-1 call attendants and dispatchers by automating certain distribution and record keeping activities.

  • Data Aggregator

The organization responsible for ensuring that GIS data from official data providers are consolidated into a single database used by next-generation essential services (SEPGs), PSAPs and front-line emergency service organizations . Local official data providers are usually the municipal government and the regional (county) and provincial governments.

  • Transport location

A location, represented by a street address or geographic coordinates (latitude / longitude), for which sufficient information is available to accurately send emergency responders to the location confirmed by the PSAP operator as a result of a dialogue with the caller.

  • Location validation functions (FVE)

Functional element of an ESInet, which is a LoST protocol server where the location information (street address or geographic coordinates) serves as inputs for a mapping function that returns the information used to route an emergency call to the appropriate CASP in relation to the location of the caller or to a responding organization.

  • Emergency Communications Center (UCC)

Entity that deals with some aspects of emergency treatment. For example, the routing of emergency requests to the correct emergency center or CASP.

  • Limitation of Emergency Services (LSU)

Geographical area delimiting the routing area under the responsibility of an emergency services organization.

  • Emergency Services Number (NSU)

A 3 to 5 digit number representing an Emergency Service Area (ESA). It is stored in the Primary Address Book (RAMP) and is returned from an ALI request. The administrative NSU facilitates the routing of the call to the correct emergency service organization. An administrative NSU is assigned to each RAMP to associate physical addresses with a ZSU.

  • Emergency Service Area (ESA)

A geographic area that represents a particular combination of emergency service organizations (such as law enforcement, fire or emergency medical services) that fall under the jurisdiction of a governing authority 9-1-1 service. A ZSU can be represented by an emergency service number (NSU) to identify the ZSU (see NSU).

  • Emergency Services IP Network (ESInet)

A managed IP network used for emergency services communications that can be shared by all public safety organizations. It provides the IP transport infrastructure on which independent application platforms and core services can be deployed, including, but not limited to, those required to provide 9-1-1PG services. ESInets can be built from a combination of dedicated and shared facilities. ESInets can be interconnected at local, regional, provincial, federal, national, and international levels to form an IP internetwork (a network of networks). The term ESInet refers to the network, but not the services that use that network. Check out the Next Generation 9-1-1 Essential Services section.

  • GeoFoundation Exchange (GFX)

GFX is a national and collaborative infrastructure for open data exchange that allows to provide official data and accurate geographic map. See also Public Safety GeoExchange (PSGX).

  • Incumbent local exchange carrier (ILEC)

The telephone company responsible for providing the main 9-1-1 call routing services in a geographic area. In Canada, the main ILECs are Telus, Sask Tel and Bell Canada.

  • Location Data Server (SDL)

A repository of matches between caller reference values, such as an IP address, and geographic location values.

  • Location validation function

Functional element of a SEPG, which is a LoST protocol server where the civic address information is validated using information from the official GIS database. A civic address is considered valid if it can be uniquely identified in the database, if it is suitable for correctly routing an emergency call, and if it is sufficiently adequate and accurate to direct the responders to the right place.

  • Rental-to-Service Translation Protocol (LoST)

Protocol typically used to route calls based on location. For 9-1-1PG service, LoST is used as the protocol for emergency call routing functions and location validation functions.

  • Primary Address Book (RAMP)

A database containing street names and house numbers, used to define emergency service areas and their emergency service numbers to enable the proper routing of 9-1-1 calls.

  • National Emergency Number Association (NENA)

A professional organization that focuses solely on issues related to 9-1-1 call policy, technology, operations and training.

  • NENA i3

NENA i3 introduces the concept of a managed emergency services IP network (ESInet), which is designed as an IP internetwork (network of networks) shared by all organizations that may be involved in an emergency.

  • Next Generation 9-1-1 Service (9-1-1PG)

9-1-1PG is an Internet Protocol (IP) -based system consisting of Managed Emergency Services (ESInet) IP networks, functional elements (applications), and databases that replicate the features and functionality of the service 9-1-1 evolved traditional. It also offers additional capabilities. The 9-1-1PG service is designed to provide access to emergency services from all connected communication sources as well as multimedia data capabilities for Public Safety Call Centers (PSACs) and other public safety organizations.

  • Next Generation Essential 9-1-1 Services (SEPG)

The basic range of services required to process a 9-1-1 call from an ESInet. Includes proxy server for emergency services routing, emergency call routing features, location validation features, and more. “Next Generation 9-1-1 Essential Services” refers to the services, not the network on which they operate. See the section on the IP network of emergency services.

  • Networks of origin

Network initiating a 9-1-1 call. Includes the access network and the call network. Generally operated by suppliers or other service providers.

  • Presence Information Data Format – Location Object (PIDF-LO)

Provides flexible and versatile ways to represent location information in a SIP header using an XML schema.

  • Policy Routing Function

The emergency services forwarding proxy functional component that determines the next hop in the SIP signaling route using the GIS data policy routing boundary geographical area in which an authority responsible for the routing of the SIP signaling route is located. 9-1-1 deals with maintenance.

  • Public Security Call Center (CASP)

Entity that receives 9-1-1 calls and event notifications for a defined geographic area and processes those calls in accordance with a specific operational policy.

  • Primary CASP

CASP to which 9-1-1 calls are routed directly.

  • Secondary CASP

CASP to which 9-1-1 calls are transferred from a primary PSAP.

  • Public Safety GeoExchange (PSGX)

A public security software utility designed to exchange 9-1-1PG GIS data between the official providers and the designated 9-1-1PG service data aggregator. Here are the main features of the PSGX utility:

  1. Verification of data integrity as part of the exchange process.
  2. Ability to automatically push or pull transactions or complete datasets between vendor and integrator.
  3. Mechanisms to report issues to the vendor and notify the integrator of changes.
  • Type of service

Broad definition to describe different types of home networks (for example, wireless, wired, wired, or IP networks). Calls can be classified according to their type of service.

  • Spatial interface

Standardized data replication interface for publishing GIS data in functional elements that use GIS data, such as emergency call routing functions, location validation functions, or map database services . View More articles here.