The Ng911CadIfLib is a Microsoft .NET DLL class library that NG9-1-1 PSAP Call Handling Functional Element (CHFE) applications can use to provide conveyance of Emergency Incident Data Objecs (EIDO) to a Computer Aided Dispatch (CAD) system.

The following standard describes describes the EIDO.

NENA Standard for Emergency Incident Data Object (EIDO), NENA, NENA-STA-021.1a-2022, October 19, 2021.

The following block diagram shows the interfaces between the PSAP CHFE, the Ng911CadIfServer class and a CAD System.

This class library provides two classes shown in gray in the above figure that applications can use for the communication of EIDOs.

The Ng911CadIfServer class implements the server-side of the EIDO Web Socket conveyance protocol and the EIDO Retrieval Service interfaces specified in the following standard.

Conveyance of Emergency Incident Data Objects (EIDOs) between Next Generation (NG 9-1-1) Systems and Applications, National Emergency Number Association (NENA), NENA-STA-024.1a-2023, February 21, 2023.

The CadIfWebSocketClient class implements the client-side (i.e., the notifier) of the EIDO conveyance protocol.

The documentation pages for this project are located at https://phrsite.github.io/Ng911CadIfLib. The documentation web site includes class documentation and articles that explain usage of the classes in this library.

The Ng911CadIfLib depends upon the following NuGet packages.

1. Ng911Lib
2. EidoLIb

This class library is available on NuGet.

To install it from the .NET CLI type:

dotnet add package Ng911CadIfLib --version x.x.x

To install using the NuGET Package Manager Command window type:

NuGet\Install-Package Ng911CadIfLib -Version x.x.x

Or, you can install it from the Visual Studio GUI.

1. Right click on the project
2. Select Manage NuGet Packages
3. Search for Ng911CadIfLib
4. Click on Install

This directory contains the project files and source code files for the Ng911CadIfLib project.

The docs directory contains HTML and other generated files generated by DOCFX and used for the GitHub pages located at https://phrsite.github.io/Ng911CadIfLib.

This directory contains the DOCFX configuration files, documentation markdown source files and other files required to generate the on-line documentation web pages.

Contains the software requirements specification for this project.

The Testing directory contains three applications that can be used to test the Ng911CadIfLib class library.