AI Receptionist: How It Works, Costs, and How to Choose

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• Answers immediately, day or night, and handles many calls at once.
• Works out why the person is calling in their own words, without a phone menu.
• Books, reschedules or cancels appointments in your calendar or business software.
• Answers questions about hours, location, services, prices and policies, from information you give it.
• Takes detailed messages and sends them to the right person by text, email or your CRM.
• Transfers calls to a person when the caller asks, or when the call needs judgment.
• Sends a summary of every call, with the recording and transcript.

1. The call arrives. You forward your existing number to the AI, or give it a new number. Most businesses keep their own number.
2. It listens and understands. Speech recognition turns the caller’s words into text, and an AI model works out what they need.
3. It acts. It checks your calendar, looks up information, books the slot or records the details, using connections to your software.
4. It replies in a natural voice, and confirms anything important back to the caller.
5. It hands off or wraps up. If a person is needed, it transfers the call with a summary. Otherwise it ends the call and logs the outcome.

• Per minute: you pay for call time. Watch for rounding (some bill in 30-second steps).
• Per call: you pay per conversation, however long. Check what counts as a call (spam, very short calls).
• Per unique caller: each phone number counts once a month, however often it calls.
• Credits or bundles: a monthly plan with minutes or credits included, and an overage rate after that.

Prices checked November 2026 on each provider’s public pricing page. Plans change, so confirm before you sign.

1. Do spam, silent and very short calls count?
2. How is time rounded, and what’s the overage rate?
3. Is there a setup fee or a minimum term?
4. Are transfers, texts and phone numbers billed separately?

• Home services: 14.1% of HVAC calls in June came outside business hours (ServiceTitan, 2026; ServiceTitan sells field service software).
• Legal: in a 500-firm secret shopper study, only 40% of law firms answered a prospective client’s call (Clio Legal Trends Report, 2024; Clio sells legal software).
• Dental: across 11.55 million calls in 2025, 31 of every 100 callers hung up before reaching anyone (Patient Prism, 2026; Patient Prism sells call analytics).

• Mishearing names, numbers and emails. Reading details back to the caller and asking them to spell fixes most of it.
• Saying “you’re booked” when nothing was booked, or double-booking when it retries.
• Transfers that ring out, or that lose the context so the caller repeats everything.
• Answering things it shouldn’t from outside the information you gave it.
• Talking over callers or not ending the call after the job is done.
• Dead air while it looks something up.

1. Call with background noise, like a car, a kitchen or a job site.
2. Spell a hard surname and give an email address and a phone number.
3. Book, then change your mind and reschedule. Check that only one appointment exists.
4. Ask something that isn’t in its information. It should say it will have someone confirm, not guess.
5. Ask for a person during business hours and again at 2 a.m.
6. Compare the booking in your calendar or software with the call transcript.
7. Read the bill: the unit, the rounding and the overage.

• In a 2026 Metrigy survey of 1,000 consumers, 59% said they would give an AI voice agent a chance if they knew they could reach a human; about 11% hang up as soon as they realize it isn’t a person (Metrigy).
• 87% of customers say companies using AI for service must provide access to a human (Gartner, August 2026).
• Phone is still the most preferred customer service channel at 35%, and 52% among Baby Boomers (YouGov, March 2025).

• Say it’s AI. Utah requires businesses to disclose AI when a caller asks, and regulated professions to disclose it up front in sensitive conversations. More states are passing disclosure laws. Saying it at the start of every call covers you everywhere.
• Call recording consent. Some states require every party’s consent to record. Put “this call may be recorded” in the greeting.
• Outbound calls are different. The FCC ruled in February 2024 that AI-generated voices count as “artificial” under the TCPA. That applies when your AI makes calls (callbacks, reminders, follow-ups), which need the right consent. It doesn’t change how an AI answers your inbound calls.
• Healthcare and legal have extra rules: a signed BAA for patient information, and care not to give legal advice. See the HIPAA compliant voice AI guide.

This is general information, not legal advice.

1. Start from your calls. List your top five call types and the share each takes. If most are bookings, connection to your calendar or software matters most.
2. Check the connection, not the logo. Ask to see a booking land in your actual calendar, CRM or field service software during the trial.
3. Check the handoff. Live transfer with a summary, and what happens when nobody picks up.
4. Price it on your volume. Use the four billing units above and your own phone bill.
5. Run the test calls in the section above.
6. Check what you see after each call: recording, transcript, summary, outcome.
7. Check how easy it is to change. New hours, new services and new rules should go live the same day.

• Most of your calls are complex, emotional or high-stakes, and need a person every time.
• You get very few calls and a voicemail callback works fine.
• Your business depends on a long relationship conversation on the first call.

• Build the agent from a plain description of your business, or design the call flow step by step: greeting, questions, booking, messages and transfers. Build an agent
• Connect your systems: Persistence connects to Cal.com, Calendly, HubSpot, Salesforce, ServiceTitan, Jobber, Housecall Pro, Clio, AppFolio, Buildium and other calendar, CRM, field service, legal and property management systems, plus your own software through custom connections. Healthcare and restaurant systems are covered in the industry guides above.
• Transfer to staff: warm transfers with a summary, so callers don’t repeat themselves.
• Test before customers call: simulated calls covering your call types and edge cases, with a pass rate before go-live. Testing
• See every call: recordings, transcripts, summaries and outcomes. Monitoring
• Languages and reliability: speaks 40+ languages and switches language mid-call, with no per-language surcharge; 99.99% uptime; as many calls at once as you need.
• Pricing: pay as you go from $0.10 per minute, all in, with $10 in free credits to start.