An AI receptionist is software that answers your business phone, holds a normal conversation with the caller, and does the things a front-desk person does on a call: answers questions about your business, books an appointment into your calendar, takes a message, and transfers the call to a person when it should. It answers every call, at any hour, and as many at once as come in. It costs from about $29 to $300 a month depending on the service and how it charges, and the self-serve ones take minutes to set up rather than weeks. This guide explains what an AI receptionist does and does not do, how it works under the hood, what it costs, and which kinds of business get the most out of one.
What an AI receptionist actually does
Strip away the word “AI” and the job is the same one a receptionist has always done on the phone:
- Answers the call with a greeting in your business’s name, on the first ring, 24 hours a day.
- Answers the questions every business gets asked: hours, address, parking, whether you take a certain insurance, what a service costs, whether you are open on Saturday.
- Books appointments. It checks your calendar, offers open slots, confirms the booking and sends the caller a confirmation.
- Takes messages and sends them to you by text or email, with the caller’s name, number and what they wanted.
- Transfers calls to a person when the call is about something it should not handle, with the caller’s name and reason already passed along.
- Sends you a summary after each call so you know what happened without listening to a recording.
The better ones also handle the awkward parts of a real call: the caller who changes their mind halfway through, the one who speaks Spanish, the one who calls back twice.
A concrete example. A dental practice closes at 5 pm. At 6:40 pm a new patient calls because a crown has come off. The AI receptionist answers, explains that the practice is closed, offers the first open slot tomorrow at 8:20 am, books it, texts the patient the confirmation, and texts the office manager: “New patient, lost crown, booked 8:20 tomorrow, number ending 4471.” Nobody at the practice did anything, and the patient did not call the next dentist on the list.
How it works
Four pieces make it work, and none of them require you to be technical.
Your phone number. You either forward your existing business line to the AI receptionist, forward only when you do not pick up (overflow and after-hours), or give it a new number. With a cloud phone system the AI receptionist can sit inside the same system as your desk phones, so a transfer is an internal transfer rather than a second call.
Speech. The caller talks, the AI listens, understands and replies in a natural voice. The current generation handles interruptions, accents and background noise well enough that most callers do not ask whether they are talking to a person. Agencies and vendors used to script every branch of the conversation; that is gone. You describe what you want and the agent handles the wording.
Knowledge. The agent needs to know your business. Self-serve products read your website and any documents you upload, so the services, prices, hours and policies come from material you already have. You correct or add anything it gets wrong in a few lines of plain text.
Rules and connections. You tell it when to book, what to collect before it books, and which calls go straight to a human. It connects to your calendar (Google Calendar, Microsoft 365, Calendly and booking tools) and, on higher plans, to your CRM so the caller’s record is created or updated.
AI receptionist, answering service or virtual receptionist?
These three get mixed up, and the price difference between them is large.
| AI receptionist | Answering service | Virtual receptionist | |
|---|---|---|---|
| Who answers | Software | A person in a call centre, from a script | A dedicated remote receptionist or small team |
| Hours | 24/7 | 24/7 on most plans | Business hours, after-hours at extra cost |
| Calls at once | Unlimited | Queue | One or two |
| Books appointments | Yes, into your calendar | Usually messages only | Yes |
| Typical monthly price | $29 to $150 | $250 and up | $250 to $1,000 and up |
| Charged by | Minutes | Calls or minutes | Minutes |
| Setup | Minutes, self-serve | Days, with an onboarding call | Days to weeks |
A virtual receptionist does some things better than software: judgement on an unusual call, a warm manner with an upset caller, remembering that Mrs Patel always asks for the same hygienist. If your call volume is high enough to justify $700 to $2,000 a month, a human service can be worth it. For most small businesses the honest comparison is not with a great receptionist. It is with voicemail.
What it costs
Self-serve AI receptionists charge a monthly subscription that includes a block of minutes, with a per-minute price above that. In October 2026 the published entry plans range from $29 a month for 60 minutes to $99 a month for 200 minutes, and mid plans run $99 to $199 for 220 to 1,000 minutes. Services staffed by people start at $250 to $300 a month for 30 calls or 50 minutes. We go through every provider’s published prices in AI receptionist pricing in 2026: what you actually pay.
Ultatel’s Voice AI Agent is priced like this:
| Plan | Price | Minutes included | Overage |
|---|---|---|---|
| Starter | $49 a month | 250 | $0.20 a minute |
| Growth | $149 a month | 1,000 | $0.15 a minute |
| Scale | $399 a month | 3,000 | $0.13 a minute |
Every plan has a 14-day free trial (a card is required and nothing is charged until day 15), no contract, and you can cancel any time from your billing page.
A useful way to size it: the average business call lasts three to four minutes, so 250 minutes is roughly 60 to 80 answered calls a month, and 1,000 minutes is 250 to 330.
Who it is for
Medical and dental practices. The phone is the front door and it is busiest exactly when the front desk is busiest. An AI receptionist takes the booking and reschedule calls, answers the insurance and hours questions, and hands anything clinical to staff. Ultatel is HIPAA compliant, which matters here because call recordings and summaries contain patient information. See AI receptionist for medical practices.
Law firms. A potential client who reaches voicemail calls the next firm. An AI receptionist does the intake at 9 pm: what the matter is about, where, how urgent, how they heard about you, then books the consultation and sends the summary to the attorney. See AI receptionist for law firms.
Trades, home services and small offices. The owner is on a roof, under a sink or with a client, and the phone is in a pocket. The AI answers, qualifies the job, books the estimate and texts the details. See AI receptionist for small business.
Who it is not for. A business with a full-time receptionist who is rarely on another call does not need one, although many use it for overflow and after-hours. A business whose calls are mostly long, sensitive conversations (therapy practices are a common example) should use it only for scheduling and route everything else to a person.
What it should not do
The most important setting in an AI receptionist is the hand-off rule. Anything urgent, clinical, legal or upset should go to a person immediately, with the caller’s name and reason in the handover. If nobody is available, the agent should take the message, text it, and tell the caller exactly that. An agent that tries to handle a chest-pain call or a tenant with water through the ceiling is a liability, not a feature.
Two questions to ask any provider: what happens when the caller asks for a human, and what does the agent say when it does not know the answer. The right answers are “it transfers, immediately” and “it says so and takes a message”.
How long setup takes
With a self-serve product, under ten minutes. Creating the account takes two to three minutes. Choosing a template for your kind of business, naming the agent, pasting your website address and adding your hours takes three to four. Deciding the three rules that matter (what it says first, when it books, which calls go to a person) takes two. Then you call it and hear it take your own call. Forwarding your existing number is a setting in your current phone system or with your carrier, and most businesses start with after-hours and overflow only.
We timed two fresh signups on Ultatel’s platform in October 2026 and both were live in under ten minutes.
Frequently asked questions
Will callers know they are talking to an AI?
Some will ask, and the agent should say yes when asked. Most callers care about getting an answer, a booking or a person, and the current generation of voice AI handles a normal call without the pauses and misunderstandings of older phone bots.
Does an AI receptionist replace my phone system?
No. It answers calls; your phone system still carries them. You forward your number to the agent, or run it inside a cloud phone system such as Ultatel’s so transfers to your team are internal.
What happens if the agent cannot answer a question?
It says so, offers to take a message or transfer the call, and sends you the question so you can add the answer to its knowledge. The agent should never invent an answer about prices, insurance or medical advice.
Start a free trial of Ultatel’s AI receptionist: set it up yourself in under ten minutes. 14-day trial, card required, nothing charged until day 15, cancel any time from your billing page.
