AI Receptionist That Answers Every Call, 24/7

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Retell AI answers your business calls around the clock. It greets callers, answers their questions, books appointments, and routes the call to the right person with full context, so you never miss a lead, even after hours and across time zones.
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Trusted by over 3,000 businesses powering 30+ million calls per month.
How It Works

Go from build to a live call in a day, on your existing number.

Build the agent
Point the agent at your website, services, hours, and pricing through a knowledge base that syncs as that content changes, so it answers callers the way you would. Define the call flow with a drag-and-drop builder β€” greeting in your business name, intent detection, availability check, booking, message-taking, and transfer rules β€” then connect your calendar and CRM. No engineering team is required for a standard agent.
Test against front-desk scenarios
Run the agent through simulation against common front-desk scenarios before it touches a customer: a new booking, a reschedule, an hours-or-pricing question, an after-hours call, and a frustrated caller. Each run scores accuracy and shows where the agent guesses instead of looking up, so you fix the flow, rerun, and validate at volume rather than finding gaps in production.
Connect your line and go live
Connect your line through SIP trunking and forward calls to the agent, all of them, only the ones you miss, or only after hours β€” and set the conditions for human escalation. Go live on one line, confirm the booking and transfer rates, then expand. Your existing carrier and phone number stay in place.
Monitor and retrain
Every call is transcribed, summarized, and tagged by outcome, and every booking lands in your calendar and CRM. Watch booking rate, missed-call recovery, and transfer rate in a dashboard, catch the questions the agent fumbles, and retrain the flow, with quality review across 100% of calls rather than a small sample.
Use Cases

Calls your AI receptionist handles from day one

Answer every call and greet in your name

The agent picks up on the first ring and greets callers in your business name, so the line never goes to voicemail or a busy signal, even when many people call at once. It answers hours, location, pricing, and service questions from the connected knowledge base, covers nights, weekends, and holidays, and handles callers in multiple languages with automatic language detection.

Book appointments straight into your calendar

The agent checks live availability and books appointments on Cal.com or Google Calendar, then reschedules and confirms during the same call. It sends confirmations and reminders so fewer customers no-show, acting as the front desk for clinics, salons, law firms, and home services without hiring a part-time receptionist.

Capture and qualify every lead

The agent identifies why the caller is phoning, gathers the details you need, and qualifies the lead in natural conversation, then routes hot leads to the right person with a warm call transfer that attaches the full transcript. It responds the moment a lead comes in, since speed-to-lead is the strongest predictor of whether it converts.

Follow up and remind by phone

The agent places appointment reminders, confirmations, review requests, and re-engagement calls through batch call campaigns, and takes a message when the right person is out, logging it to your CRM with the transcript attached.

Cover overflow and after-hours

The agent fields overflow and after-hours calls through an AI answering service, so your team only handles what needs them and no call rolls to voicemail.

Serve callers in multiple languages

Native-quality speech across multiple languages with automatic language detection, so one agent serves callers in the language they start in.

Compliance

Regulated businesses route real calls through the agent, so the security baseline comes standard.

SOC 2 Type II

Call data runs on SOC 2 certified infrastructure, ensuring that all AI virtual receptionist interactions and stored data meet rigorous security, availability, and confidentiality requirements.

HIPAA

Retell is a HIPAA-compliant AI receptionist solution, making it safe for healthcare and dental practices, with a self-service BAA portal available from the dashboard. Patient information is always encrypted and protected.

GDPR

For global businesses, Retell AI guarantees full GDPR compliance, covering consent and access rights so personal data handled by our AI phone receptionist is managed transparently and securely.

PII Redaction

Built-in PII redaction ensures sensitive customer information never gets exposed, automatically masking personally identifiable data in transcripts and recordings, alongside single sign-on and role-based access.

Feature

Why businesses choose Retell AI as their AI receptionist

Build
Deploy
Monitor
vfb-receptionists-build
Sounds like your business
Pick from 100+ lifelike voices or clone your own, and tune tone and language so the agent matches a dental office or a law firm and greets callers in your business name β€” warm, human-like conversations instead of an outdated phone tree.
Books into your calendar, not just a message pad
The agent checks live availability and writes the appointment into Cal.com or Google Calendar during the call, so a captured call becomes a booked job. Pine Park Health raised scheduling NPS by 38% after putting calls through a voice agent. Results vary by setup.
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Answers in roughly 600 milliseconds
End-to-end latency of about 600ms with proprietary turn-taking means callers don’t sit through dead air or talk over the agent. Interruptions and barge-in are handled the way a strong receptionist handles them.
Never a missed call, never a busy signal
The agent answers every call at once, around the clock. That matters because callers who reach voicemail rarely leave one and rarely call back, and industry research puts the average missed call at about $12.15 in lost value. Results vary.
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Scores 100% of calls
Every call is transcribed, summarized, and tagged by outcome through post-call analysis, and every booking lands in your calendar and CRM. Watch booking rate, missed-call recovery, and transfer rate in a dashboard, catch the questions the agent fumbles, and retrain the flow, instead of reviewing a small sample by hand.
Integrations

Seamless
Integrations with Your
Tech Stack

View All Integrations
  • Hubspot
  • Twilio
  • Vonage
  • Go High Level
  • n8n
  • Zapier
  • Salesforce
  • Hubspot
  • Twillio
  • Vonage
  • Go High Level
  • 8n8
  • Zapier
  • Salesforce
  • Avaya
  • Genesys
  • Five9
  • Amazon Connect
  • Telnyx
  • Make
  • Cal.com
  • Avaya
  • Genesys
  • Five9
  • Amazon Connect
  • Telnyx
  • Make
  • Cal.com
Pricing

Cut Costs by 90% with AI phone Agents

Pay as you go

$0 to start.

$0.07–$0.31 per minute – Pay only for what you use.
60 mins of free access.
20 concurrent calls.
10 Free Knowledge Bases.
Get Started
FAQ

Frequently asked questions.

What is an AI receptionist?

An AI receptionist is a voice agent that answers your business calls, works out what each caller wants, and takes action. It greets callers in your business name, answers common questions from your knowledge base, books appointments during the call, routes or transfers calls to the right person, and logs every conversation for you to review. Unlike a basic chatbot or touch-tone IVR, it understands intent and acts on it rather than reading a menu.

What features should I look for in an AI receptionist?

Look for natural, low-latency conversation (Retell answers in roughly 600ms with proprietary turn-taking), answers drawn from your own knowledge base, real-time appointment booking through integrations like Cal.com and Google Calendar, call routing and warm transfers that pass full context, lead qualification and capture, and multilingual support. It should also meet enterprise security standards such as PII redaction and SOC 2, HIPAA, and GDPR compliance, work on your existing number through SIP trunking, and give you post-call analytics so you can review and improve every call.

How do I make an AI receptionist?

Point the agent at your website, services, hours, and pricing through a knowledge base, then define the call flow with a drag-and-drop builder and connect your calendar and CRM. Test it against common front-desk scenarios, connect your line through SIP trunking, and go live. No engineering team is required for a standard agent, and most teams go from signup to a live agent within a few days.

How do I replace a front desk receptionist with AI?

In practice, most businesses augment their front desk rather than replace it. Route first contact, overflow, and after-hours calls to the agent and keep staff for in-person work and complex cases. The agent answers, books, qualifies, and routes calls in live conversation, and transfers anything it should not handle to a person with the full context attached β€” so no caller waits and your team focuses on the work that needs them.

Which AI virtual receptionist is best for small businesses?

Small businesses tend to want fast setup, no big upfront commitment, and pricing that tracks usage. Retell is pay-as-you-go at $0.07 per minute with no platform fee, connects to your existing number and CRM, and can be live in a few days, so you can start on one line and grow from there. It scales from a single-location clinic or salon to multi-site operations without adding headcount.

Does Retell AI answer questions, book appointments, and route calls?

Yes. Retell answers callers’ questions using your knowledge base, books appointments during the call through integrations such as Cal.com, and routes or transfers calls to the right person with full context. It can also qualify leads and capture caller details for follow-up.

Does Retell AI Receptionist comply with data privacy regulations?

Yes. Retell is SOC 2 Type I and Type II certified and compliant with HIPAA and GDPR. A Business Associate Agreement for HIPAA and a Data Processing Addendum with EU Standard Contractual Clauses for GDPR are available to self-sign at no extra cost. Data is encrypted in transit and at rest, built-in PII redaction removes sensitive details from transcripts and recordings, and you can set data retention per agent from 1 day up to 2 years.

How does Retell AI Receptionist handle emergencies?

Retell follows the escalation rules you set. When a call signals urgency or asks for a person, the agent transfers it right away to a live team member or an on-call number and passes the full context, so the caller does not have to repeat themselves and urgent issues reach someone fast.

How much does it cost?

Retell is pay-as-you-go at $0.07 per minute with no platform fee or contract, plus free credit to start. You pay for minutes worked, not seats, which is why a busy line still costs less than a part-time front desk. For companies with large volumes, or data, deployment, or support requirements, an Enterprise plan adds white-glove service, a dedicated solution engineer team, and custom pricing and concurrency.

Revolutionize your call operation with Retell

Start building smarter conversations today.

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