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 runs inbound support, outbound sales, and everything between on one platform, deployed by your engineers or ours, with sub-second latency on every call and no separate tool for each direction.
Trusted by over 4,000 businesses powering 100+ million calls per month.
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How It Works
Launch your AI call center in four steps, whichever direction the calls go.
Build the agent
Choose your path: build with Retell's API and SDK if you have engineers, or work with our team for a white-glove buildout. Either way, configure routing, escalation, and outbound campaign logic against one knowledge base that covers your whole operation, not just one queue.
Test against real call scenarios
Run the agent against real inbound and outbound scenarios, a support call, a cold dial, an objection, an after-hours request, before it touches a live line. Each run scores accuracy and flags where it guesses instead of checking the knowledge base.
Connect your lines and go live
Connect your existing lines through SIP trunking for inbound, and upload your list for outbound campaigns, all on the same agent and the same CRM context. Go live on one queue or one list, confirm resolution and connect rates, then expand across the rest of the call center.
Monitor and retrain
Every call, inbound or outbound, is transcribed, scored, and dispositioned automatically. Track resolution rate, connect rate, transfer rate, and sentiment in one dashboard instead of two, and retrain the agent from the calls it fumbles.
Use Cases
What one AI call center platform replaces
Answer inbound support without a queue
The agent answers every inbound call on the first ring, resolves routine requests, billing, order status, account access, from a synced knowledge base, and hands off with full context when a human is genuinely needed.
Run outbound sales and follow-up at scale
The same platform dials your list, delivers the pitch, handles objections, and books meetings, so inbound and outbound stop being two separate tools with two separate vendors.
Replace IVR with a conversation
Callers describe what they need instead of pressing through a menu tree. The agent reads intent and routes instantly, or resolves the request itself without a transfer.
Schedule, remind, and follow up by phone
Appointments, renewals, payment reminders, and no-show recovery all run as outbound campaigns from the same agent that answers your inbound line.
Cover after-hours and overflow
Nights, weekends, and volume spikes get the same resolution quality as a staffed floor at 2pm, without adding headcount for the peak.
Deploy your way, API or white-glove
Engineering teams build directly on Retell's API and connect their own telephony. Ops and CX leaders get a dedicated implementation team, compliance review included, and a live agent without writing a line of code.
Feature
Why call centers choose Retell AI over a single-purpose tool
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.
