Book Appointments
Smarter Call Transfers, Happier Customers
Discover  Feature
Seamlessly switch calls with AI-powered warm and cold transfers that save time, maintain context, and keep customers engaged.
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Overview

Designed for Efficiency, 

Built for Trust

Retell's AI handles both cold and warm call transfers to fit any customer interaction. Whether speed or context is key, agents stay informed, and callers stay confident.

Cold Transfer
What it does
Instantly transfers calls to a live agent without added context.
How it Helps
Keeps things fast and efficient for low-complexity requests.
When to Use
Ideal for quick redirects, overflow routing, or after-hours escalation.
Key Points
Lightning-fast handoff
No pre-call briefing
Minimal system resources
Ideal for large call volumes
Warm Transfer
What it does
Transfers the caller with a contextual briefing to the next agent.
How it Helps
Builds trust and reduces repetition by keeping the next agent informed.
When to Use
Perfect for high-touch service, escalations, or critical handoffs.
Key Points
Contextual call introduction
Personalized handoff builds rapport
Reduces customer frustration
Increases first-contact resolution
Overview

Designed for Efficiency, 

Built for Trust

Retell's AI handles both cold and warm call transfers to fit any customer interaction. Whether speed or context is key, agents stay informed, and callers stay confident.

Overview

Designed for Efficiency, 

Built for Trust

Retell's AI handles both cold and warm call transfers to fit any customer interaction. Whether speed or context is key, agents stay informed, and callers stay confident.

Add the Call
Transfer Function
Connect Retell’s call transfer API to your existing voice flow or telephony setup. With just a few lines of code, your AI agent gains the ability to redirect calls to human agents or other departments seamlessly—keeping your infrastructure intact while improving the caller’s experience from the very first handoff.
60 minutes free trial
Define Routing Logic & Experience
Connect Retell’s call transfer API to your existing voice flow or telephony setup. With just a few lines of code, your AI agent gains the ability to redirect calls to human agents or other departments seamlessly—keeping your infrastructure intact while improving the caller’s experience from the very first handoff.
60 minutes free trial
Try Thie Feature
Test, Refine
& Launch
Simulate real scenarios to ensure your call transfer logic performs perfectly. Adjust parameters, preview transitions, and verify response latency before launch. Once ready, deploy instantly and monitor performance through your Retell dashboard to keep every transfer fast, contextual, and reliable.
60 minutes free trial
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 All Use Cases
Matic Insurance
Matic routes high-value leads via warm transfers, increasing trust and improving conversion rates.
Our numbers show that 45-50% of calls are completely resolved by Retell AI without ever touching a human.
Jonathan Adly
Senior Engineer, GiftHealth
GiftHealth
Cold transfers helped GiftHealth scale support without sacrificing speed or quality.
Retell enabled us to streamline 60% of calls with zero agent involvement.
Jonathan Adly
Senior Engineer, GiftHealth
Matic Insurance
Matic routes high-value leads via warm transfers, increasing trust and improving conversion rates.
Our numbers show that 45-50% of calls are completely resolved by Retell AI without ever touching a human.
Jonathan Adly
Senior Engineer, GiftHealth
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.

View All Product Features
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Retell Feature

AI Appointment Scheduling for Instant  Booking

Automate scheduling and booking with Retell AI. Our AI appointment scheduling checks availability, confirms slots, and keeps every interaction seamless.

Check Availbility

Retrieve open time slots instantly

Book Appointments

Book appointment in a specific slot.

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CONTACT SALES
Use Cases

When to use AI appointment booking?

Virtual Front Desk

Receptionist

Handling initial queries, directing calls to appropriate departments, and scheduling appointments for visitors or clients.
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Marketing

Appointment Settler

Ask a few questions to ensure the lead meets specific criteria. Then setting up consultations or demo appointments for sales representatives.
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Operation

Automated Follow-Ups

Contacting clients to confirm upcoming appointments and reschedule if needed, or handling rescheduling for missed appointments.
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Sales

Demo & Discovery Booking

Capture high-intent inquiries and convert them to confirmed demos in one call. AI appointment booking routes to the right rep instantly.
Get Started
Field Services

On-Site Visits

From HVAC to repairs, offer real-time availability, book technician windows, and trigger reminders and reschedules automatically.
Get Started
Operation

Healthcare & Wellness

Intake essentials, check eligibility/availability, and book or reschedule visits securely with an AI appointment scheduler that reduces no-shows.
Get Started
How it works

Step by step to use appointment booking

1

Create Appointment Booking Functions

Start by creating an AI agent tailored for appointment booking.

Add the “Check Availability” and “Book Appointments” functions to your agent, making it ready to handle scheduling tasks.

Try for free
60 minutes free trial
2

Set up the functions

Connect your agent to a Cal.com account by entering the necessary credentials and event ID.

Make sure to configure the correct time zone settings on both the Cal.com platform and the Retell AI dashboard.

Try for free
60 minutes free trial
3

Add Function Logic to Prompts

Define the scenarios where the appointment booking functions will be triggered. For example:

Call the ‘Check Availability’ function and provide available slots to the customer. When the customer selects a time, trigger the ‘Book Appointment’ function to confirm the booking.”

Try for free
60 minutes free trial
4

Monitor Appointments and Optimize

Once an appointment is booked, view it directly on the dashboard. Review and refine your agent’s prompts to further enhance customer interactions and optimize results.

Try for free
60 minutes free trial

Industries We Serve

Healthcare

Automate patient service, reminders, and front-desk tasks.

Financial Services

Handle account inquiries, transfers, and support with accuracy.

Insurance

Streamline claims, quotes, and policy updates via voice.

Logistics

Confirm deliveries, reroute shipments, and notify customers.

Home Services

Answer bookings, route calls, and manage appointments 24/7.

Debt Collection

Automate payment reminders and follow-ups with care.

Retail & Consumer

Support orders, returns, and FAQs with instant voice agents.

Travel & Hospitality

Manage reservations, cancellations, and guest requests efficiently.

Integrations

Connect Retell to Your Tech Stack

Connect to any CRM, telephony, automation platform

Check IntegrationsTalk To Sales
OpenAI - retell integration
Custom LLM
vonage - retell integration
Vonage
twilio - retell integration
Twilio
n8n - retell integration
n8n
Cal.com - retell integration
Cal.com
Gohighlevel - retell integration
Go High Level
Full Transparency

No Platform fees. pay only for what you use

Treat Retell like your outsourced call center.

Pay as you go
$0 to start.
Self-Serve
Start instantly.
Sign up - for free
Try us for free
Details
$0.07+/minute for AI Voice Agents
$0.002+/msg for AI Chat Agents
Pre-build Functions
Simulation Testing
Analytics
$10  Free credits
20 Free concurrent calls
10 Free Knowledge Bases
Discord and Email support.
Enterprise Plan
For companies with large call volumes (over $3k/month)
Optional White-Glove Service
Prefer not to DIY? We’ll custom-build and scale your AI agent for you.
Contact Sales
Contact Sales
Details
Includes everything from pay as you go
Discounted pricing based on volumes
Fully managed agent setup
Additional Included concurrency
Early access to beta features
Higher Limit on Knowledge Bases
Custom concurrent calls based on volumes
Premium private Slack channel support with dedicated support teams.
F.A.Q

Questions & answers

All account has a 60-minutes free trial.

How does Retell AI handle time zones?
Can I handle rescheduling with Retell AI?
What scheduling tools does Retell AI support?
Can I personalize the appointment booking process?
More questions? Visit our docs
Blogs

Related Resources

Cal.com’s Preset Tools as an AI Scheduling Assistant

Discover how Retell AI's Batch Dialer leverages automation and API integration to revolutionize business communication.

Nov 8, 2024
Product
Gifthealth - Retell Case study
How GiftHealth achieved 4x operational efficiency with Retell AI

GiftHealth is a technology-driven healthcare platform that streamlines administrative

Dec 2, 2024
Customer Stories
inbounds - retell case study
How Inbounds.com optimize and scale high-ticket call campaigns with Retell AI

Inbounds.com leverages technology to drive large-scale consumer acquisition for major

Dec 4, 2024
Customer Stories

Discover more

AI Voice Agent
AI Receptionist
AI Customer Service
AI Call Center
AI Answering Service
AI Appointment Setter
AI Debt collection
AI IVR
AI Telemarketing

Time to hire your AI call center

Revolutionize your call operation with Retell.

Contact Sales
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