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

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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.
Retell AI platform overview showing the build, test, deploy, and monitor workflow

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Platform Capabilities

Here’s what Retell offers:

How Retell Works

Sophisticated voice agent platform for phone call operations

Quickstart

Create your first phone agent in 5 minutes

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🛠️ Build

Setup Conversation Flow Agent

Create agent with fine-grained control for structured conversations.

Setup Single/Multi Prompt Agent

Create flexible agents for dynamic, less structured conversations using prompt-based configuration.

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🧪 Test

Playground

Interactively test and debug your agents in a web-based environment

Simulation Testing

Automated testing with simulated conversations to validate agent behavior at scale

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🚀 Deploy

Phone Calls

Make and receive phone calls with our or your own phone number

Custom Telephony

Integration with your custom telephony provider via SIP

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🔍 Monitor

Webhook

Setup webhook to receive real-time events for your calls

Call Analysis

Extract insights from your calls