AI receptionist for small business: real results, costs and setup

01What the job is

An AI receptionist is a voice agent that picks up your business phone when you can't. It answers common questions, takes the caller's details, books an appointment or sends you an urgent alert, then texts or emails you a summary.

It fits any business that loses work when the phone rings out: trades, clinics, salons, restaurants, law and accounting offices. Most owners start with after-hours and overflow calls only, so their own team still answers during the day.

02Real businesses doing it

Each one links to our write-up and the original source. Figures marked “self-reported” come from the owner or the vendor and weren't checked independently.

1. A Texas salon made back 13.8 times what it paid for an after-hours AI receptionist

   Result$4,915 in new bookings from 458 calls in the first month, 13.8 times what it cost.

   Feb 2026 · bookingbee.ai · source ↗

2. An HVAC shop's AI phone agent lifted bookings from 55% to 71% of calls

   Result71% of calls now become bookings, up from 55%. Nearly half of calls came outside business hours

   reddit.com · self-reported · source ↗

3. A family restaurant stopped missing 35 calls a week

   ResultMissed calls went from 35 a week to zero, bookings up 47%, about $28K more a month.

   inputly.ai · source ↗

4. A dental clinic got 93 bookings in month one from a bilingual voice agent

   Result93 bookings in the first month.

   Mar 2026 · benian.ai · source ↗

5. An HVAC company booked 23 jobs in month one from after-hours calls

   Result23 booked jobs in the first month.

   Mar 2026 · benian.ai · source ↗

6. An AI receptionist books a plumber 5-7 extra jobs a week

   Result5-7 extra jobs a week that would have gone to voicemail; many came from 6pm-8am calls

   May 2026 · reddit.com · self-reported · source ↗

7. A roofer who never answers his phone now books extra jobs with an AI receptionist

   Result2–3 extra jobs a week and his best month since starting

   May 2026 · reddit.com · self-reported · source ↗

8. A London dentist's AI receptionist costs £47 a month

   ResultCosts about £47 a month and books appointments automatically. No revenue figures given

   reddit.com · self-reported · source ↗

9. A self-storage company's AI agent answers 24/7 and brings in new renters

   ResultAI solves 70% of questions, brings hundreds of new leads, and 2–3% more people move in from after-hours calls.

   Jul 2026 · sierra.ai · source ↗

10. A restaurant's voice agent took the FAQ calls and saved 20-30 staff hours a week

    Result20-30 staff hours saved every week

    reddit.com · self-reported · source ↗

03What it costs

Ready-made tools charge a monthly plan with a bucket of minutes, calls or callers. Entry plans we checked start at $0 (Smith.ai, 25 calls) to $29 (Dialzara, 60 minutes); busy-shop plans run about $129–$299 a month.

Build-it-yourself platforms like Retell charge per minute instead ($0.07–$0.31 a minute on its page), plus a phone number. Cheaper at low volume, but you write and test the agent yourself.

Prices are in US dollars as the vendors publish them. Phone numbers outside the US/Canada can cost extra; check before you sign up.

04Tools compared

Starting prices from each tool's own pricing page, checked 16 Oct 2026. Prices change, so click through before you buy. We don't earn anything from these links.

05How to set it up

Setup time: Ready-made tools: Dialzara says most customers go live the same day. Plan a weekend if you write your own FAQ and test properly.

1. 1

   Count your missed calls for one week (your phone's call log or carrier app). This is the number your AI receptionist must beat.

2. 2

   Write a one-page cheat sheet: services, prices you are happy to quote, hours, service area, and what counts as urgent.

3. 3

   Pick one tool from the table. Start with after-hours and overflow only.

4. 4

   Paste the prompt below into the tool's instructions box and replace every [highlighted] part.

5. 5

   Connect your calendar if you want it to book; otherwise have it take a message and text you.

6. 6

   Set call forwarding on your existing number (no-answer after 4–5 rings, and after hours). You keep your number.

7. 7

   Make 10 test calls: a normal booking, an angry caller, an emergency, a price question, a spam call. Fix the prompt after each.

8. 8

   Go live and read every call summary for the first two weeks. Compare bookings to your missed-call count from step 1.

06Risks, trust and security

• It can say something wrong

  Only let it quote prices and promises you wrote down. Tell it to take a message when unsure, and read summaries daily at first.

• Emergencies

  Define what is urgent and have it text or transfer to a person immediately. Never let it give medical, legal or safety advice.

• Recording and privacy laws

  Call recording and AI disclosure rules differ by country and state. Have the greeting say callers are speaking with an AI assistant and that calls may be recorded, and check your local rules.

• Your customers' data

  Ask the vendor where recordings are stored and for how long. Health and legal businesses should ask for a signed data agreement (Retell lists HIPAA/BAA on enterprise terms).

• Callers who hate bots

  Give an easy way out: 'say "person" any time'. Smith.ai includes live human backup if this matters a lot to you.

07The prompt

Paste this into your tool's instructions box, then replace the highlighted parts.

You are the phone receptionist for [Business name], a [type of business] in [City]. You answer when the team can't: after hours and when the line is busy. Friendly, short, and clear. Say you are an AI assistant in the greeting.

GREETING
"Thanks for calling [Business name], this is [Agent name], the AI assistant. How can I help?"

WHAT YOU CAN DO
1. Answer questions using only the facts below.
2. Book an appointment in [calendar tool] for: [list of services].
3. Take a message: name, phone number, address or suburb, what they need, best time to call back.

URGENT
If the caller mentions [urgent situations, e.g. flooding, no heat, severe pain], stop and text [owner phone] right away, then tell the caller someone will call back within [X] minutes.

FACTS YOU CAN USE
- Hours: [hours]
- Area served: [area]
- Prices you may quote: [only the prices you are happy to give]
- Other common questions: [question: answer]

RULES
- Never invent prices, availability or promises. If unsure, take a message.
- No medical, legal or safety advice.
- If the caller asks for a person, take a message or transfer to [number].
- Keep calls under [3] minutes.

AFTER EVERY CALL
Send a summary to [email or phone]: caller name, number, reason, what was booked or promised, and whether it is urgent.

Written by Quickly and Good.

08Questions owners ask