With Retell, weβve increased scheduling NPS by 38%, and filled underutilized provider capacity, allowing our team to focus on meaningful patient care instead of phone tag.
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AI Call Center That Answers Every Call in Under a Second
5.0
ON G2
Retell AI deploys voice agents that pick up every inbound and outbound call, hold a real conversation, and finish the task instead of routing it through a menu. The agents connect to your existing phone system and CRM, run in 30+ languages around the clock, and need no engineering team to launch.
Trusted by over 4,000 businesses powering 100+ million calls per month.
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How It Works
Stand up an AI call center in four steps, from configuring the agent to handling live calls.
Configure your agent
Describe the calls you handle today, set the voice and escalation rules, and choose the questions the agent should resolve on its own, then connect a knowledge base so answers stay current. Pre-built templates for inbound support, reception, and lead qualification get a working agent running in an afternoon.
Connect your phone system
Connect existing phone numbers through SIP trunking or spin up a new one, with no change to your current telephony stack. The agent goes live on inbound, outbound, or both.
Test with simulated calls
Run the agent against simulated calls before a customer hears it. Replay the messy scenarios that break scripted systems, an angry caller, a mid-sentence interruption, a question the FAQ never anticipated, and adjust intent handling and transfer thresholds until behavior matches your floor's standard.
Deploy and monitor performance
Go live on a slice of traffic, then review 100% of calls through post call analysis, track resolution and transfer rates over time, and tighten the agent from the data.
Use Cases
Call volume your AI call center absorbs without hiring
Replace the IVR with intent, not menus
Callers say what they need in plain language and reach the right resource on the first try, with no βpress 1 for billing.β The agent reads intent, tone, and account context to route or resolve, so misroutes and repeat transfers drop and average handle time falls across the queue.
Resolve routine inquiries on first contact
The agent pulls live answers on policy, pricing, order status, and account details mid-call instead of putting callers on hold. A connected knowledge base auto-syncs from your site and docs, so first-call resolution climbs and callers stop repeating themselves.
Cover after-hours and overflow without staffing it
Calls outside business hours and during volume spikes get answered at full quality rather than rolling to voicemail. An always-on AI answering service books callbacks, resolves routine requests, and logs everything for the morning shift, so abandonment falls even at 2 a.m. or during a recall surge.
Run outbound follow-up at campaign scale
Reminder calls, satisfaction checks, and collections follow-up never get prioritized when the inbound queue is full. A batch call campaign dials thousands of contacts, confirms outcomes, and flags the ones that need a human, feeding clean data back to your CRM.
Transfer complex calls with full context
When a call exceeds what the agent should resolve, a warm call transfer hands the live rep the full transcript and caller context, so your team picks up mid-conversation instead of starting over. You decide which calls route to a human.
Support callers in 30+ languages
The agent holds the conversation in 30+ languages around the clock, so global call volume gets the same instant pickup and resolution without standing up a multilingual night shift.
Feature
Why teams choose Retell AI to run their call center
No-code flow builder
Configure routing, escalation, and campaign logic without writing code.
API-first for engineering teams
Build directly on Retell's API and connect your own telephony stack.
One knowledge base, every call
Point the agent at a knowledge base that covers inbound and outbound alike.
Go live on your existing lines
Connect through SIP trunking with no change to your carrier or numbers.
Inbound, outbound, or both
Launch on one queue or one list, then expand across the rest of the call center.
White-glove option available
Get a dedicated implementation team if you'd rather not build it yourself.
Every call reviewed, not sampled
Transcription, scoring, and disposition run on 100% of calls automatically.
One dashboard, both directions
Track resolution rate, connect rate, and transfer rate in a single view.
Retrain from real data
Fix the agent from the calls it actually fumbles, not a hunch.
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Pricing
Cut Costs by 90% with AI phone Agents
Pay as you go
$0 to start.
$0.07β$0.31 per minute β Pay only for what you use.
60 mins of free access.
20 concurrent calls.
10 Free Knowledge Bases.
Enterprise Plan
For companies with large volumes, data or deployment requirements, or support needs.
White glove service for your use case.
Premium support with dedicated solution engineer teams.
Custom pricing and concurrent calls based on your needs
FAQ
Frequently asked questions.
What is an AI call center?
A call center where AI voice agents handle inbound and outbound phone calls, answering, routing, scheduling, and following up, instead of, or alongside, human agents.
How does AI work in a call center?
The agent listens in real time, understands intent, and responds using your knowledge base and workflows, then hands off to a human with full context when it needs to.
Which AI calling agent is the best?
It depends on latency, compliance needs, and whether you need inbound only or both inbound and outbound. Retell runs both on one platform with sub-second response time.
How much does an AI call center cost?
Retell starts at $0.07 to $0.31 per minute pay-as-you-go, with 60 minutes free to start and custom enterprise pricing for white-glove deployments.
Is AI taking over call centers?
AI is taking over the repetitive volume, FAQs, scheduling, follow-up, so human agents can focus on the calls that need judgment.
Can one platform handle both inbound and outbound calls?
Yes. Retell runs inbound support and outbound sales, scheduling, and collections on the same agent and the same CRM context.
