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.

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

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

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

Retell Feature

Power your AI agent With Knowledge Base

Ensure your AI agent delivers precise, up-to-date responses every time. Retell AI’s Knowledge Base feature seamlessly integrates webpages, documents, and custom content to keep your agent informed and efficient.

Webpages

check the available slots in calendar

Documents

book appointment in specific slot

TRY FOR FREE

CONTACT SALES

Use Cases

What are retell's knowledge base features?

Upload Webpages

Easily import content from your website to keep your AI agent informed.

Supports single pages or entire websites

Real-Time Updates

Streamlined and Efficient

Get Started

Upload Documents

Empower your AI agent with key resources by uploading important documents.

Wide Format Support

Ease Of Use Uploading

Multiple Documents Allowed to Add At Once

Get Started

How it works

Step by step to use a knowledge base?

Create a knowledge base

Navigate to the “Knowledge Base” tab and click the “Add” button. Choose your knowledge source from three options:

URL: Import content from web pages, either single pages or entire sites.File: Upload documents in supported formats, such as PDFs, TXT, or DOCX.Text: Add custom content directly to the Knowledge Base.

Try for free

60 minutes free trial