> ## 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.

[YouTube video player](https://www.youtube.com/embed/hFOTzboLPnw)

## Getting help

> **[Join our Discord server](https://discord.com/invite/4QWgSz4hTC)**
>
> The #get-help channel is a great place to get help with any questions about Fonoster.

> **[Follow us on X (Twitter)](https://twitter.com/fonoster)**
>
> Follow us on X (Twitter) for the latest updates and news.

> **[Schedule a call](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.

> **[Give us a start on GitHub](https://github.com/fonoster/fonoster)**
>
> Check us out at github.com/fonoster


This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.