Book more appointments with AI voice agents

Just say when and we’ll handle the rest

Book appointments the easy way by checking availability, confirming the right time slots, and keeping every interaction smooth from start to finish.

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Overview

Go from checking availability to booking an appointment

Check. Book. Done.

Book Appointments

Book appointment in a specific time slot.

Book appointment in a specific slot

Book directly within the conversation

Automatically added to the right calendar

Check Availability

Retrieve open time slots instantly.

Retrieve open time slots instantly

Up-to-date schedules

Find the right time, agent, or resource

Feature

From Call to Confirmed

Let a Retell agent do the scheduling for you and fill your calendar with more confirmed calls.

How It Works

Get Appointment Booking Running in Four Steps

Create your
booking agent

Set up an AI agent for scheduling. Add “Check Availability” and “Book Appointment” to get started.

Connect your calendar

Link your Cal.com account and event ID. Make sure your time zones are aligned.

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Define your flow

Tell your AI voice agent when to check availability and when to book. Ex. show open slots → confirm the selected time → book instantly.

Track and optimize

View bookings in your dashboard and refine prompts to improve performance.

Product Highlights

Built to Handle
the Real World

Truly Humanlike Experience

Natural turn-taking, low latency, and contextual language generation make every transfer feel effortless.

Multichannel Support

Use Retell across voice, SMS, and chat — all transfers work seamlessly across channels.

Warm Transfer Intelligence

Automatically summarize caller context before connecting, improving agent readiness.

Enterprise-Grade Reliability

No dropped handoffs, 99.9%+ uptime, and fallback systems ensure smooth transitions.

Use Cases

Proven Impact Across  
Industries

Explore Retell Customers

GiftHealth

Leveraging automation and AI, GiftHealth makes specialty medicine and procedures more accessible and affordable for patients while easing the administrative load on prescribers.

I nostri numeri mostrano che il 45-50% delle chiamate viene risolto completamente da Retell AI senza mai toccare un umano. Non l'abbiamo nemmeno ancora estesa completamente a tutte le nostre linee.

Jonathan Adly

Senior Engineer, GiftHealth

Inbounds

Inbounds.com has scaled and optimized its call campaigns without sacrificing the human oversight essential to its customers' success.

“La nostra adozione anticipata di Retell AI, combinata con la nostra capacità di personalizzarla a fondo e costruire la nostra infrastruttura attorno ad essa, ci dà davvero un vantaggio nel settore.”

Leonardo Danconia

CEO and Cofounder, inbounds.com

Swtch Energy

Il costo del nostro team di assistenza clienti aumentava del 300-400 percento all'anno. Introducendo Retell e costruendo Lucas, siamo riusciti a ridurre quel peso di oltre il 50 percento, migliorare drasticamente i nostri margini SaaS e continuare comunque a supportare i nostri clienti durante situazioni di forte crescita e urgenti.

Carter Li

CEO

Integrations

Seamless 
Integrations with Your
Tech Stack

View All Integrations

Hubspot
Twillio
Vonage
Go High Level
8n8

Hubspot
Twillio
Vonage
Go High Level
8n8

Hubspot
Twillio
Vonage
Go High Level
8n8

Hubspot
Twillio
Vonage
Go High Level
8n8

Hubspot
Twillio
Vonage
Go High Level
8n8

Hubspot
Twillio
Vonage
Go High Level
8n8

Hubspot
Twillio
Vonage
Go High Level
8n8

Hubspot
Twillio
Vonage
Go High Level
8n8

Learn More

Discover More
Features

Explore how Retell AI can transform every part of your call operations. See the full range of capabilities designed for smarter automation, better efficiency, and enhanced customer experience.

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