Blog - aspnet core

Using Twilio Voice you can add the ability to make and receive phone calls from your own ASP.NET web applications. Twilio’s helper library for JavaScript makes it easy to integrate client functionality into web front ends built with Blazor WebAssembly, and the Twilio NuGet packages provide you with convenient interfaces to Twilio’s APIs for server-side tasks.

Blazor Server is built on SignalR, and SignalR is built on websockets among other techniques. The combination of these technologies allow Blazor Server to push UI changes into the client without the client requesting those changes.