Voice Websocket Echo

The Vonage Voice API is the easiest way to build high-quality voice applications in the Cloud. Using the Voice API, you can connect phone calls to WebSocket endpoints, which means that any application that hosts a WebSocket server can be a participant in a Vonage voice conversation.

In this project, you’ll use both the Voice API and WebSockets to receive raw audio from and play audio into a call in real time. This project uses Vonage Cloud Runtime, removing the need to manage servers and hosting. Visit the developer portal to view documentation on how it works.

Steps

1. To start, ensure you are signed into your Vonage developer account. If you do not have an account yet, you can create one here.

2. To immediately deploy the application, go to the ‘Deploy Code’ tab. Enter a name for your application in ‘Instance Name’, select your AWS region, and click the ‘Deploy Code’ button.

   1. You will see a pop up prompting you to assign your Vonage number to the application - you will be able to buy one here if you do not have one already.
   2. Click ‘Assign a number’ to select your number from the list, then continue to create the application.
   3. You will then see your new application under ‘Deployed Instances’. Click ‘Launch’ to run it, then call your Vonage number to use your echo server.

3. To view the code and edit the application, go to ‘Get Code’ and click ‘Create a new development environment’.

   1. You will see a pop up prompting you to choose a region, enter a workspace name and assign your Vonage number to the application - you will be able to buy one here if you do not have one already.
   2. Click ‘Assign a number’ to select your number from the list, then continue to launch the workspace.
   3. When the workspace opens, you will see a README detailing how to edit, debug, run and deploy the project.
   4. Once your project is deployed, you can use the URL in the terminal output to access your application.