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

# Introduction

> 📞 Build, test, deploy, and monitor AI phone agents.

**Retell** is a comprehensive platform for building, testing, deploying, and monitoring reliable **AI phone agents**.

## Overview

Retell provides a complete solution for creating conversational AI agents that can handle phone calls naturally. The platform supports both inbound and outbound calls, integrates with various telephony providers, and offers robust testing and monitoring capabilities.

<Frame>
  <img height="300" src="https://mintcdn.com/retellai/rxvYffEkEJPRL1KD/images/doc-intro.png?fit=max&auto=format&n=rxvYffEkEJPRL1KD&q=85&s=c3f67fdd3b7731d0e9b0fa75c0218965" alt="Retell AI platform overview showing the build, test, deploy, and monitor workflow" data-path="images/doc-intro.png" />
</Frame>

## Platform Capabilities

Here's what Retell offers:

<CardGroup cols={2}>
  <Card title="How Retell Works" icon="magnifying-glass" color="22D3EE" href="/general/orchestration_overview">
    Sophisticated voice agent platform for phone call operations
  </Card>

  <Card title="Quickstart" icon="table-columns" color="22D3EE" href="/get-started/quick-start">
    Create your first phone agent in 5 minutes
  </Card>
</CardGroup>

#### 🛠️ **Build**

<CardGroup cols={2}>
  <Card title="Setup Conversation Flow Agent" icon="person" color="60A5FA" href="/build/conversation-flow/overview">
    Create agent with fine-grained control for structured conversations.
  </Card>

  <Card title="Setup Single/Multi Prompt Agent" icon="person-dress" color="60A5FA" href="/build/single-multi-prompt/prompt-overview">
    Create flexible agents for dynamic, less structured conversations using prompt-based configuration.
  </Card>
</CardGroup>

#### 🧪 **Test**

<CardGroup cols={2}>
  <Card title="Playground" icon="vials" color="34D399" href="/test/llm-playground">
    Interactively test and debug your agents in a web-based environment
  </Card>

  <Card title="Simulation Testing" icon="computer" color="34D399" href="/test/llm-simulation-testing">
    Automated testing with simulated conversations to validate agent behavior at scale
  </Card>
</CardGroup>

#### 🚀 **Deploy**

<CardGroup cols={2}>
  <Card title="Phone Calls" icon="mobile" color="FB923C" href="/deploy/outbound-call">
    Make and receive phone calls with our or your own phone number
  </Card>

  <Card title="Custom Telephony" icon="phone" color="FB923C" href="/deploy/custom-telephony">
    Integration with your custom telephony provider via SIP
  </Card>
</CardGroup>

#### 🔍 **Monitor**

<CardGroup cols={2}>
  <Card title="Webhook" icon="bell" color="90EE90" href="/features/webhook-overview">
    Setup webhook to receive real-time events for your calls
  </Card>

  <Card title="Call Analysis" icon="chart-simple" color="90EE90" href="/features/post-call-analysis-overview">
    Extract insights from your calls
  </Card>
</CardGroup>