> ## Documentation Index
> Fetch the complete documentation index at: https://docs.fonoster.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Introduction

> Welcome to the home of Fonoster's documentation.

## What is Fonoster?

Fonoster is an innovative Programmable Telecommunications Stack that allows businesses to connect telephony services with the Internet entirely through a cloud-based utility.

The most notable features of Fonoster are:

* Multitenancy

* Easy deployment of PBX functionalities

* Programmable Voice Applications

* NodeSDK and WebSDK

* Support for Amazon Simple Storage Service (S3)

* Secure API endpoints with Let's Encrypt

* Authentication with OAuth2

* Authentication with JWT

* Role-Based Access Control (RBAC)

* Plugins-based Command-line Tool

* Support for Speech APIs from Google, Deepgram, ElevenLabs, and more

We're open source, and you can use the Fonoster Cloud (Coming soon) or Self-host Fonoster on your infrastructure.

## What can you build?

With Fonoster, you can build any type of voice application, from simple IVRs to advanced Voice AI. Check out a demo below for a glance at what you can make.

<iframe width="100%" height="500px" src="https://www.youtube.com/embed/hFOTzboLPnw" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen />

## Getting help

<CardGroup cols={2}>
  <Card title="Join our Discord server" icon="discord" color="#5765F2" href="https://discord.com/invite/4QWgSz4hTC">
    The #get-help channel is a great place to get help with any questions about Fonoster.
  </Card>

  <Card title="Follow us on X (Twitter)" icon="x-twitter" color="#FFFFFF" href="https://twitter.com/fonoster">
    Follow us on X (Twitter) for the latest updates and news.
  </Card>

  <Card title="Schedule a call" icon="phone" iconType="solid" href="https://cal.com/psanders/coffee-chat">
    Arrange a call with the team. We can help answer questions and give 1-on-1 help building on Fonoster.
  </Card>

  <Card title="Give us a start on GitHub" icon="star" iconType="solid" color="#FBBF24" href="https://github.com/fonoster/fonoster">
    Check us out at github.com/fonoster
  </Card>
</CardGroup>