Built
Other Solution
#1 AI Voice Agent Platform for Calling
Meet your AI call center from the future.
Overview
What is Retell?
LLM based, humanlike, voice-first conversational AI platform
Other Solution
IVA Voice Agent
Our Solution
3rd Gen Voice AI
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Receive a live call from our agent and discover how our AI caller transforms customer conversations.
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With Retell, we’ve increased scheduling NPS by 38%, and filled underutilized provider capacity, allowing our team to focus on meaningful patient care instead of phone tag.
Lucas answers calls in seconds, handles urgent EV support at scale, cuts support costs by over 50%, and significantly improves our SaaS margins.
Highlights
Human-standard AI voice agent, out of the box
Proprietary Voice AI Orchestration Delivering Human-Quality, Low-Latency Phone Conversations At Scale
Lowest Latency
Independent benchmarks confirm Retell as the leader in responsiveness. With ~600ms latency, conversations stay smooth and fluent.
Ultra Realistic Voice
Built from real performance data and refined through human-guided training
Turn taking
Proprietary turn taking model that we know when to stop, when to listen
Highlights
Consistently High Quality in Every AI Call, Continuously Improving
Comprehensive Agent Testing with Built in Simulation Testing
Test agents across real-world scenarios before launch, validating behavior, accuracy, and reliability at scale.
Continuous QA to Ensure Performance Across Edge Cases
Review past calls to surface failure patterns and actionable insights that continuously improve agent performance.
Performance Analytics Dashboard built for businesses insights
Design custom charts and dashboards to analyze call outcomes, agent performance, and business impact.
Integrations
True omni-channel communication.
Voice Call
Chat
SMS
API
Highlights
A Telephony Stack Optimized For Reach, Reliability, And Results
Display Branded Call ID
Enable Retell AI’s Branded Call feature to unlock new levels of customer trust and satisfaction for outbound call operations.
Using SIP Trunking Connect to Any Telephony
Use your existing phone numbers or your familiar VOIP providers. You can connect to any telephony using Retell SIP Trunking.
Batch Calling
Effortlessly run batch call campaigns without concurrency limits, with detailed conversion tracking available after each campaign.
Verified Phone Numbers
Build and maintain trust with customers with verified phone numbers that prevent your calls being labeled as spam.
Compliance and Security
Enterprise-Grade Security and Reliability
From data protection and compliance to uptime and system resilience, Retell delivers the enterprise-grade security and reliability required to run voice AI at production scale.
Compliance & Security
Fully compliant with HIPAA, SOC2 Type II, and GDPR. We ensure your voice agents meet the highest global standards for data privacy and security.
SSO
Seamless single sign-on with enterprise identity providers for secure, centralized access control.
Personal Info Redacant
User-defined controls to selectively redact sensitive personal data in calls and transcripts.
Custom Role Based Control
Configurable roles with module-level permissions to control access across teams.
Scalability to Millions of Calls
Battle-tested infrastructure built to handle millions of calls reliably at scale.
Unmatched implementation services
Professional FDE-led implementation to ensure a smooth and secure deployment.
Enterprise On-prem
Deploy Retell within your own infrastructure to meet strict security and data residency requirements.
- Custom LLM
- Twillio
- Vonage
- Go High Level
- 8n8
- Custom LLM
- Twillio
- Vonage
- Go High Level
- 8n8
- Custom LLM
- Twillio
- Vonage
- Go High Level
- 8n8
- Custom LLM
- Twillio
- Vonage
- Go High Level
- 8n8
- Custom LLM
- Twillio
- Vonage
- Go High Level
- 8n8
- Custom LLM
- Twillio
- Vonage
- Go High Level
- 8n8
- Custom LLM
- Twillio
- Vonage
- Go High Level
- 8n8
- Custom LLM
- Twillio
- Vonage
- Go High Level
- 8n8
FAQ
Common Questions
What is an AI voice agent?
An AI voice agent is an autonomous system that can listen, speak, and hold natural phone conversations like a human. It uses speech recognition, large language models, and text-to-speech technology to understand callers, respond intelligently, maintain context, and take actions such as booking appointments or updating systems without relying on rigid scripts or human intervention.
How do Retell AI voice agents work?
Retell AI is a real-time conversational AI platform that uses proprietary voice AI orchestration with low-latency speech recognition, LLM-powered conversation understanding, and real-time function calling. The platform features a ~600ms latency (industry-leading responsiveness), ultra-realistic voices built from real performance data, and proprietary turn-taking models that know when to speak and listen.
How do I create AI voice agent with Retell AI?
Creating a voice AI agent with Retell is easy! Sign up for a free account on the Retell dashboard, where you’ll receive $10 of free usage. From there, you can customize and configure your AI voice agent, integrating it seamlessly with your company’s data and workflows
Can I connect agent to my existing phone number?
Yes. Retell supports integration with any telephony system through SIP trunking, making it easy to connect your existing phone number and deploy your AI-powered answering service or AI IVR without changing infrastructure.
What is an AI call center powered by Retell AI?
An AI call center built on Retell AI is a next-generation voice automation platform that deploys LLM-based, humanlike voice agents to handle inbound and outbound calls at scale. These agents can function as AI receptionists, intelligent IVR systems, and outbound AI telemarketing agents while managing phone-based interactions with natural, human-quality conversations and autonomous task execution.
