How to Set Up a 24/7 AI Receptionist for Your Small Business

It is 2:15 on a Tuesday and you are under a kitchen sink with both hands full. Your phone buzzes -- a new number, probably a job -- and there is nothing you can do about it. By the time you wash up and call back ninety minutes later, the caller has booked the plumber who picked up on the second ring. You never even heard the voicemail. That call was a $340 service visit, gone.

Here is how to set up an AI receptionist so that call never slips away again -- start to finish, no code. A 24/7 AI receptionist answers every call the instant it lands, works out what the caller wants, and, done right, books the job instead of scribbling a message. Miss three or four calls a week and that is real money walking out the door: not because you are bad at your job, but because you cannot answer a phone and run a business at once.

The steps below work with any tool; if you are still choosing one, our roundup of the best AI receptionist software compares seven. Where it helps to be concrete I will use Deelo, because it does the part most tools skip: it acts. Budget an afternoon -- most of that is describing your business well, not fighting with software.

None of this takes technical skill, but setup goes faster if you gather a few things first:

Every AI receptionist needs a line to answer, and you have two ways in. The platform gives you a new number to hand out, or -- better for an established business -- you keep your current number and forward calls to the agent. The trick worth knowing is conditional forwarding: set your phone to ring the AI only when you do not pick up within a few rings, or only after hours. Regulars still reach you directly; the overflow and the 11 p.m. calls get answered instead of lost.

In Deelo Voice you get a number in a few clicks, then bind it to the agent you are about to build. To route your existing line instead, point your carrier's call-forwarding at that number. One expectation to set: AI phone calls today are turn-based -- the caller speaks, the agent listens, then it replies, a natural back-and-forth rather than an interrupt-me-mid-sentence conversation. Ignore any pitch built on zero-latency, cut-you-off realism; the value is in what the agent does after the caller finishes, not in shaving milliseconds off the reply.

This step decides whether your receptionist sounds sharp or clueless, and it is the one people rush. The agent answers from what you tell it, so brief it like a good new hire on day one.

What you sell and what you do not. Your hours, including the holidays you close. Your service area -- 'north side, not downtown.' Your prices, or at least ranges and your honest 'it depends.' Then paste in those ten FAQs with real answers, not corporate mush.

Two habits separate a good knowledge base from a maddening one. Be specific -- '$89 diagnostic fee, waived if you book the repair' beats 'competitive pricing.' And tell it what to do when it does not know: 'If you are unsure, say someone will follow up, and take their number.' An agent that admits a gap and captures the lead beats one that confidently invents an answer. You are handing it facts, not scripting every word -- the AI handles the wording.

Here is where a receptionist stops being fancy voicemail and starts earning its keep. Answering is easy. Doing something about the call takes connections.

Connect your calendar first. Once the agent sees your real availability, 'anything Thursday afternoon?' stops being a message it takes and becomes a slot it books, with a confirmation text out before the caller hangs up. In Deelo, Bookings is the calendar the agent reads and writes -- set your services and their durations so it never books a 90-minute job into a 30-minute gap.

Then connect where customer info lives. A new caller's name and number should land in your CRM automatically, tagged with why they called, so nothing rides on you typing it in later. This is the split the whole category turns on: the gap between a tool that takes a message and one that does the job. Deelo sits firmly on the 'does the job' side -- its agent reaches roughly 600 tools across its apps, so booking, looking up an order, or drafting an invoice are tasks it finishes, not notes it leaves you. If your customers also text or use website chat, the same agent can staff phone, SMS, and web at once.

Now set how the receptionist opens and what it is allowed to do once the caller talks.

The greeting is a line or two in your voice: 'Thanks for calling Rivera Plumbing, this is the scheduling line -- how can I help?' Skip the corporate throat-clearing. If you plan to record calls, a short spoken-consent line goes here too, which the next step covers.

Then give the agent its job description. Turn on the actions you want it handling and leave the rest off:

Start narrow -- FAQs and booking on, message-taking as the fallback -- and widen the lane once you trust it.

This step is about what the receptionist must not do -- and it matters more than any feature, because an over-eager agent fails worse than a missed call.

The rule of thumb: a stranger on the phone should never trigger something you would want a human to approve. No refunds. No canceling a paid booking. No deleting records, moving money, or promising a discount that wrecks your margin. For anything high-stakes the right pattern is defer-and-report -- the agent gathers the details, tells the caller someone will follow up, and flags it for you, instead of acting on a request it has no business granting. Deelo enforces this; an external caller cannot push the agent into a risky write. Name the actions that always require a person, and confirm your tool honors it.

Pair guardrails with a clean handoff: decide which calls transfer -- an angry customer, a complex quote, anything past the agent's knowledge -- and where they go. If you record calls, turn on recording with a spoken-consent line, since some states require both parties to agree. Keep transcripts on -- you will want them in Step 7. And if you answer texts as well, wire up STOP and HELP keywords so people can opt out, which is both good manners and, for SMS, the law.

Do not flip this on for customers until you have been the customer. Call the number. Then call it again, meaner.

Run the calls you actually get. Book a normal appointment and confirm the slot lands on your calendar and the text arrives. Ask a pricing question and check the answer against reality. Then try to break it: mumble, change your mind mid-call, ask for something you never set up, act annoyed and demand a human -- and watch it transfer cleanly. Ask it to do something it should refuse, like cancel a paid job, and confirm it defers instead of caving.

Read the transcript of each test. That is where you catch it quoting your Saturday hours wrong or booking a slot that should be blocked, and every miss traces to a gap in Step 2 or Step 3. Fix the knowledge, not the one call. Fifteen minutes tricking your own receptionist now saves an embarrassed customer later. To test the web-chat version, some tools -- Deelo included -- give you a shareable link like /a/your-agent that opens a live chat, so you can probe the same brain by typing.

When the test calls stop surprising you, go live -- forward your number or hand out the new one. Going live is not the finish line; it is where the tuning starts.

For the first week or two, read the transcripts daily and look for three things: questions the agent fumbled (add them to your knowledge base), bookings that went sideways (fix the calendar rules), and calls it transferred that it could have handled (widen the lane). Each is a five-minute edit, and the receptionist gets sharper every time. After a couple of weeks the transcripts turn boring -- boring means it is handling things without you.

Keep an eye on the meter too. Most AI receptionists bill by usage. Deelo runs voice and SMS through a Communications add-on, metered per turn -- one back-and-forth exchange -- while its website chat uses the same AI Assistant credits your text agent already spends, with no separate add-on. Whatever you pick, confirm current rates on the pricing page before you scale, and price it against the calls you were losing, not against zero. One booked job a week usually clears a month of conversations.