AI Solutions→AI Voice Agents
AI Voice
Agents
Every missed call is a missed customer. Our AI voice agents answer instantly, around the clock - booking appointments, qualifying leads, and following up - so no opportunity ever goes to voicemail again.
Get Your Free AI Audit →Used by gym owners, dental clinics, and real estate agents across US, UK & Australia
Caller
Hi, I'm interested in joining the gym
AI
Great! I can get you booked in for a free trial. What's your name?
Caller
It's James
AI
Perfect James - I have tomorrow at 10am or 2pm. Which works?
What We Build
What is an AI voice agent?
An AI voice agent is a conversational system that answers your phone, holds a natural spoken conversation with the caller, and completes real tasks - booking an appointment, capturing lead details, answering common questions, routing urgent calls. Unlike a recorded menu or a basic chatbot, it understands intent, responds naturally, and works 24/7 without breaks, sick days, or hold music.
For a business that lives on inbound calls - a clinic, a gym, a real estate office, a home-services company - the AI voice agent is the difference between capturing a lead at 9pm on a Sunday and losing it to the competitor who picked up.
Inbound Call Handling
Answers every call instantly, 24/7. No hold music. No missed opportunities.
Lead Qualification
Asks the right questions, scores the lead, and routes hot prospects immediately.
Appointment Booking
Books directly into your calendar. Sends confirmations. Handles reschedules.
The Process
Live in 5 days.
Running forever.
We Audit Your Call Flow
We listen to your current calls, map the most common questions, and identify every drop-off point.
We Build Your AI Agent
Custom voice, custom script, trained on your business, your offer, your objections.
We Connect It to Your Stack
Wired into your CRM, your calendar, your existing phone number. Zero disruption.
It Answers. You Close.
You get a notification when a hot lead is ready. The AI handles everything before and after.
Industries
AI voice agents for real estate,
clinics, and service businesses.
Inbound calls are the lifeblood of appointment-driven businesses, and they arrive exactly when nobody is free to answer them. Real estate is the sharpest case - every enquiry is high value and agents are in showings all day - but the same pattern holds for clinics, gyms, and home services. See how it works for AI voice agents for real estate, dental clinics, and gyms and fitness studios, or browse every industry we serve.
🏋️
Gym Owners
Never miss a trial enquiry again. AI books them while you're coaching.
🦷
Dental Clinics
Handle new patient calls and appointment requests automatically.
🏠
Real Estate
Qualify buyer and seller enquiries the moment they call.
🎯
Coaches
Intake and qualify new coaching clients without lifting the phone.
🔧
Home Services
Quote requests handled and appointments set automatically.
Deliverables
What an AI voice agent does
for your business.
What's included
Typical Results
Based on average across our active AI voice agent deployments
Reality Check
The difference is night
and day.
Without AI Voice Agent
- Calls go to voicemail after hours
- Receptionist costs $3–5k/month
- Inconsistent call handling
- Leads call competitors while you sleep
- Manual appointment booking
With AI Voice Agent
- Every call answered in under 2 seconds
- AI runs at a fraction of the cost
- Consistent on-brand responses, always
- Leads qualified and booked around the clock
- Automatic calendar sync + confirmation SMS
Cost Breakdown
Human vs AI receptionist.
The numbers are stark.
The average US front-desk receptionist costs $3,000–$5,000/month in base salary - before benefits, sick leave, training, and turnover. And they're only available 8 hours a day, 5 days a week. Here's what the same investment buys you with AI.
| Human Receptionist | AI Voice Agent | |
|---|---|---|
| Monthly cost | $3,000–$5,000/mo | $999/mo managed |
| Availability | Mon–Fri, 9am–5pm | 24/7 - 365 days |
| Simultaneous calls | 1 at a time | Unlimited, instantly |
| Response time | Hold music + queue | Under 2 seconds |
| Sick days / no-shows | 10–12 days/year avg | Zero |
| Training required | 2–4 weeks minimum | 5 days, done-for-you |
| Script consistency | Varies by mood/day | Identical every call |
| After-hours coverage | Voicemail only | Full call handling |
| CRM/calendar sync | Manual data entry | Automatic, real-time |
| Performance reporting | None | Weekly dashboard |
*Human receptionist cost based on US Bureau of Labor Statistics median salary data. AI managed rate based on Optimized Growth standard plan.
ROI Estimate
What does a missed call actually cost?
More than the AI.
Most service businesses miss 25–40% of their inbound calls - after hours, during peak periods, or when the team is with clients. Here's what that costs a typical gym, dental clinic, or real estate agency.
🏋️
Gym / Fitness Studio
80 missed calls/month
30% book a trial
24 missed trials/month
$120 avg member value (12-month LTV)
$2,880/month in missed revenue
$999/mo managed AI
3× ROI in month one
🦷
Dental Clinic
50 missed new-patient calls/month
40% become new patients
20 missed patients/month
$850 avg new patient value (first visit)
$17,000/month in missed revenue
$999/mo managed AI
17× ROI in month one
🏠
Real Estate Agency
30 missed buyer/seller enquiries/month
10% convert to closed deals
3 missed closings/month
$9,000 avg commission per deal
$27,000/month in missed revenue
$999/mo managed AI
27× ROI in month one
Ready to calculate your specific ROI?
Book a free audit - we'll run the exact numbers for your business and show you projected results before you commit to anything.
Get My ROI Estimate →Proof
What happens when
your phone never sleeps.
“We went from missing calls to booking 3x more trials per week. The AI voice agent handles everything while I focus on coaching.”
Marcus Reid
Owner · Iron Forge Gym
“New patient calls used to pile up after hours. Now the AI books them in and sends a confirmation automatically. We haven't missed a single enquiry.”
Sarah Chen
Bright Smile Dental
“We were losing leads to faster agents. The AI now responds the second someone calls, qualifies them, and books a viewing. Three deals closed from calls we would have missed.”
David Patel
Patel Realty
+340%
Trial Bookings
Case Study
Iron Forge Gym went from 12% call pickup to booking 3× more weekly trials.
“Within the first week our AI agent booked more trials than we had in the entire previous month. Honestly, I thought it was a fluke - it wasn't. This thing just works.”
+340%
Trial Bookings
$0
Missed Leads
14 Days
Setup Time
More Client Results
Three businesses.
Same system. Real outcomes.
🏋️
Gym · Phoenix, AZ
Iron Forge Gym
+340% trial bookings in week one
Was missing 60%+ of after-hours trial enquiries to voicemail. AI now answers every call, books the trial, and sends a confirmation SMS. First week results exceeded their entire previous month.
+340%
Trial bookings
12→100%
Call pickup rate
5 days
Setup time
"Within the first week our AI agent booked more trials than we had in the entire previous month."
🦷
Dental Clinic · Austin, TX
Bright Smile Dental
Zero missed new-patient calls
New patient calls were piling up on voicemail after 5pm - the highest-volume window for first-time callers. AI now handles all after-hours intake, books the hygiene appointment, and sends a new-patient intake form automatically.
0
Missed patient calls
+62%
New patients/month
$17K
Recovered monthly revenue
"New patient calls used to pile up after hours. Now the AI books them in and sends a confirmation automatically."
🏠
Real Estate · Chicago, IL
Patel Realty
3 closed deals from calls they would have missed
Buyer enquiries were coming in during showings when agents couldn't pick up. Three deals - all from calls the AI answered during peak showing hours - closed within 90 days of deployment. Total commission recovered: $27,000.
3
Deals from AI-answered calls
$27K
Commission recovered
< 2s
Response time
"We were losing leads to faster agents. The AI now responds the second someone calls, qualifies them, and books a viewing."
Why Now
Why businesses are switching
to AI voice agents.
A missed call is not a neutral event. The caller does not wait - they dial the next business on the list, and the enquiry is gone. Human reception can only cover so much: it works business hours, handles one call at a time, and costs a full salary whether the phone rings twice or two hundred times.
The usual fallbacks do not close the gap. Voicemail turns a live lead into a message most people never leave. Traditional answering services pick up, but they read from a generic script, cannot see your calendar, and hand you a message rather than a booking.
What changed is that voice AI now holds a real conversation - it understands what the caller wants, answers in context, and completes the task on the call. That is why the switch is happening now: the technology finally does the job the phone was doing badly.
Build vs Buy
AI voice agent platform
vs. building it yourself.
There are good AI voice agent platforms available, and if you have the engineering time they are worth looking at. What they give you is a toolkit: the speech models, the call handling, an API. What they do not give you is a working agent for your business.
That part is the actual work - mapping how your calls really go, writing and testing the conversation logic, wiring it into your phone number, calendar, and CRM, then correcting the things it gets wrong once real callers hit it. Platforms hand you the raw materials and the maintenance burden along with them.
We do that end to end and keep doing it after launch. You get a working AI voice agent answering your phone, not a dashboard to learn - and it connects to the rest of your stack, from AI lead generation to AI customer support and AI workflow automation.
Investment
Pricing
Setup
$2,499
One-time build fee
- Full AI agent build
- Script + voice customisation
- All integrations connected
- Testing and QA
- Go-live support
Setup + Management
$2,499 + $999/mo
Everything in Setup, plus:
- Weekly performance review
- Script iteration and improvement
- CRM and calendar maintenance
- Monthly report
- Priority support
Not sure which is right? Book a free audit and we'll tell you exactly what your business needs.
Also Consider
Pair with these for
maximum impact.
AI Lead Generation
Add outbound to your inbound. AI finds and contacts prospects before they even call.
AI Workflow Automation
Connect your voice agent to your full ops stack. Zero manual work between call and close.
AI Customer Support
Handle post-sale support the same way you handle inbound sales. 24/7, automated.
TL;DR
AI voice agents are software systems that answer inbound calls, qualify callers, and book appointments — 24/7, without human staff. They work across industries including healthcare, restaurants, real estate, gyms, and dental clinics. Optimized Growth builds and manages them done-for-you. Live in 14 days. $2,499 setup, then $999/month.
AI voice agents by industry: where they work best
Any service business that relies on inbound calls can benefit from an AI voice agent. But the use case — and the ROI — varies significantly by industry. Below are the two fastest-growing use cases beyond the well-known verticals of gyms, dental clinics, and real estate.
AI voice agents for healthcare
90 searches/month — GP clinics, physiotherapy, allied health
Healthcare practices handle a high volume of appointment calls, referral enquiries, and after-hours queries — concentrated in the windows when front-desk staff are with patients or the clinic is closed. A missed new-patient call in a medical practice is not a minor inconvenience: it is a lost patient who called a competitor while on hold.
An AI voice agent configured for healthcare answers every inbound call, books appointments into your scheduling system, and handles common enquiries — without giving clinical advice. Anything requiring clinical judgment is flagged and escalated with a full transcript. HIPAA-compliant infrastructure is standard; clients receive a data processing agreement before go-live.
Common use cases
- →New patient appointment booking and intake form delivery
- →Referral enquiry capture and routing to the correct clinician
- →After-hours enquiry handling with next-day callback scheduling
- →Prescription refill and test result notification triage (script, not clinical advice)
- →Post-appointment recall scheduling and follow-up reminders
AI voice agents for healthcare do not provide clinical advice. They follow a scripted triage protocol and escalate outside their competency immediately.
AI voice agents for restaurants
50 searches/month — table bookings, event enquiries, availability
Restaurants lose reservations during the exact moments they are busiest. The lunch rush (12pm–2pm) and dinner service (6pm–9pm) are peak booking windows — and also the times your front-of-house team is least able to pick up the phone. An AI voice agent runs in parallel with your service, answering every call, confirming reservations, and capturing event enquiries without requiring any staff attention.
Restaurant voice agents integrate directly with OpenTable, Resy, SevenRooms, and Google Calendar. When the AI confirms a booking, it syncs immediately — no manual entry, no double bookings, no follow-up calls to confirm. For private dining and corporate events, the AI captures the brief and triggers a follow-up workflow to your events team.
Common use cases
- →Table reservation booking and modification
- →Dietary and allergen enquiries (scripted responses per your menu)
- →Private dining and corporate event intake
- →Gift voucher and opening hours enquiries
- →Walk-in availability and wait-time updates
White label AI voice agents for agencies
Marketing agencies, BPOs, and technology resellers can deploy white label AI voice agents under their own brand. Optimized Growth handles the build, integration, and ongoing technical management. Your agency manages the client relationship and sets its own pricing — the system is branded to you.
Most agency partners add white label AI voice agents as a recurring managed service line, priced at 2–4× their cost. The margin is recurring: once the system is live, client churn is low because the AI becomes embedded in their operations.
White label includes
✓Custom branding — your logo, your domain
✓Volume pricing for multi-client deployments
✓Agency dashboard for client management
✓Client-facing reporting under your brand
✓Dedicated build support for new verticals
✓NDA and white label agreement included
How AI voice agents are built
An AI voice agent is not a single piece of software — it is a stack of components working together: a voice infrastructure layer (handles call routing and audio processing), a large language model (understands the caller and generates responses), a text-to-speech engine (converts text to natural-sounding speech), and integration middleware (connects to your CRM, calendar, and phone number).
When Optimized Growth builds your AI voice agent, we select the best-fit stack for your use case, compliance requirements, and call volume. You don't need to understand the technology — we choose, configure, and manage it. You receive a working phone number and a system that books appointments.
AI voice agents — industry and use case FAQ
Can AI voice agents be used in healthcare settings?+
Yes. AI voice agents for healthcare are configured with clinical guardrails — they book appointments, handle referral enquiries, and answer administrative questions, but do not provide clinical advice or diagnose symptoms. Anything outside their defined scope is escalated with a full call transcript. All calls are processed through HIPAA-compliant infrastructure, with data processing agreements provided before go-live.
Do AI voice agents work for restaurants?+
Yes, and they solve a specific problem restaurants face: peak booking hours overlap with peak service hours, so phones go unanswered. AI voice agents for restaurants take reservations 24/7, handle dietary enquiries based on your menu, capture private dining enquiries, and sync bookings directly to OpenTable, Resy, or SevenRooms. No staff action required.
What is a white label AI voice agent?+
A white label AI voice agent is a deployable AI calling system that marketing agencies, BPOs, and technology resellers can brand and sell to their own clients. Optimized Growth offers white label AI voice agent deployments for agencies: you brand the system under your own name, set your own pricing, and we handle the build and technical management. Your client sees your brand — not ours.
Can agencies resell AI voice agents to their clients?+
Yes. Agency partners receive access to our build infrastructure, white label branding options, and volume pricing. You manage the client relationship; we handle the technical build, integration, and ongoing optimisation. Most agency partners add AI voice agents as a recurring managed service at 2–4× their cost.
How are AI voice agents built?+
AI voice agents are built using a voice AI platform (such as Vapi or Retell AI) combined with a large language model (GPT-4, Claude, or Gemini) for natural language understanding, and a text-to-speech engine for human-sounding output. The agent is connected to your phone number via SIP routing or call forwarding, then integrated with your CRM and calendar via API. The 'intelligence' is the combination of the LLM, the custom system prompt, and the knowledge base we train on your business — all configured and managed by Optimized Growth.
What technology do AI voice agents use?+
Optimized Growth AI voice agents use a combination of: Vapi or Retell AI (voice infrastructure), GPT-4o or Claude 3.5 (language model), ElevenLabs or Cartesia (text-to-speech voice synthesis), and n8n or Make for CRM/calendar integration. The specific stack is chosen based on your use case, compliance requirements, and call volume. You don't need to understand the stack — we select and manage it.
Do AI voice agents work for real estate agents and brokers?+
Yes. Real estate is one of the highest-ROI use cases for AI voice agents: buyer and seller enquiries arrive unpredictably (during showings, evenings, weekends), and response speed directly impacts conversion. The AI answers every call, qualifies the caller as buyer or seller, asks pre-qualifying questions about timeline and budget, and books a callback or viewing with the right agent. Missed leads stop being missed.
Are AI voice agents available outside the United States?+
Yes. AI voice agents support phone numbers across the US, Canada, UK, Australia, New Zealand, South Africa, and most of Western Europe. Optimized Growth has deployed AI voice agents for clients in over 40 countries. Phone number provisioning, call routing, and compliance are handled for each market as part of the setup.
FAQ
Common questions,
honest answers.
What is an AI voice agent?
An AI voice agent is a conversational system that answers your phone, holds a natural spoken conversation with the caller, and completes real tasks - booking an appointment, capturing lead details, answering common questions, or routing an urgent call. Unlike a recorded menu or a scripted chatbot, it understands what the caller actually wants, responds naturally, and works 24/7 without breaks or hold music.
How is an AI voice agent different from an answering service or voicemail?
Voicemail turns a live lead into a message most callers never leave. A traditional answering service picks up, but it reads a generic script, cannot see your calendar, and hands you a message rather than a booking. An AI voice agent answers in your business's context and finishes the job on the call - the appointment is booked and the lead details are captured before the caller hangs up.
Can the AI voice agent book appointments and update my calendar?
Yes. The agent books directly into your scheduling system during the call, so the caller hangs up with a confirmed time rather than a promise of a callback. We integrate with the major booking and CRM tools - including Cal.com, Calendly, Google Calendar, GoHighLevel, and HubSpot - and connect to your existing phone number by call forwarding or SIP routing, so there is no disruption to your current setup.
Does it work for real estate, clinics, and service businesses?
Yes - appointment-driven businesses are exactly where it fits. Real estate is the sharpest case, because agents are in showings when high-value enquiries come in. Dental and medical clinics use it for new patient calls and confirmations, gyms for trial bookings and membership questions, and home services for quote requests and job scheduling. The agent is configured around your specific call flows and offers.
Will callers know they're talking to AI?
The agent speaks naturally rather than reading a menu, and it is configured to be straightforward about what it is if a caller asks. We set the voice, tone, and disclosure approach with you during the build so it matches how you want your business represented on the phone.
What happens if the AI can't handle a call?
Anything the agent cannot confidently resolve - a complex complaint, an unusual request, something outside its scope - is escalated to a human with the context from the call attached. The caller's name and details are captured either way, so an escalated call is still a captured lead rather than a lost one. You also get transcripts and reporting on what came through.
How much does an AI voice agent cost?
Setup is $2,499 as a one-time build fee, scoped to your call flows and integrations. Managed service - monitoring, tuning, and reporting - is $999/month after the build. Everything is month-to-month after setup, with no long-term lock-in. Book a free audit and we will scope your exact build before you commit.
How long does setup take?
Most clients are live within 5-7 business days. We handle the build end to end - mapping your call flows, writing and testing the conversation logic, and connecting your number, calendar, and CRM. Your involvement is a kickoff conversation and a review of the agent before it goes live.
Stop Missing Calls.
Start Booking More.
Book a free 30-minute AI audit. We'll show you exactly how an AI voice agent would work for your specific business - before you spend a dollar.
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