Here's the version nobody selling you one of these will say out loud: all three can answer your phone, and only one of them can be on duty at 3 a.m., call a new lead back in seconds, and cost less than a payroll line. The right choice depends on which problem you actually have: unanswered calls, slow follow-up, or too much admin. Most owners have all three and only budget for the first.
What does each option actually do?
Strip away the marketing and each option has a job description.
A hired front desk is a person at your location. They answer during business hours, know your business deeply, handle walk-ins, and do whatever else needs doing. They also take vacations, call in sick, and go home at 5.
An answering service is a call center that picks up in your name. Someone friendly takes a message or, on pricier plans, books an appointment into your calendar. Then the message is forwarded to you. The lead has been received. It has not been won.
An AI receptionist is software that answers with a voice agent. The cheap ones ($25 to $199 a month) answer and take messages. The done-for-you tier does the rest of the front-office job: ZilchWork's AI, Anna, answers every call 24/7, calls brand-new leads back in seconds, qualifies them, pitches your offer, books the job, and for unregulated sales she asks for the sale, texts a secure checkout link, and takes payment live on the call. She logs everything in the CRM herself.
How do the costs compare?
| Hired front desk | Answering service | AI receptionist (tool) | ZilchWork (done-for-you AI) | |
|---|---|---|---|---|
| Typical cost | ~$5,000/mo with taxes and benefits | ~$100 to $300/mo, often per-minute or per-call | $25 to $199/mo | $997 to $4,997/mo flat |
| Hours covered | Business hours | Up to 24/7 | 24/7 | 24/7 |
| Calls new leads back | If asked, when free | No | Rarely | Yes, in seconds |
| Qualifies and pitches | Yes, if trained | Light scripting | No | Yes |
| Books appointments | Yes | On some plans | Some tools | Yes |
| Asks for the sale, takes payment | Sometimes | No | No | Yes, live on the call |
| Updates your CRM | If disciplined | No | Rarely | Yes, automatically |
| Sick days, turnover, retraining | Yes | Their problem, your quality risk | No | No |
Answering-service pricing deserves one caveat: many bill by the minute, so a busy month costs more than a quiet one. For reference, Smith.ai's published rates in July 2026 are $97.50 a month for AI answering and $292.50 for the human-backed hybrid plan.
When is hiring a person the right call?
When the job is bigger than the phone. If you need someone to greet walk-ins, manage the office, chase paperwork, and be a human face for the business, hire. A good front desk person is worth every dollar for what happens inside your four walls.
Just be honest about what hiring doesn't fix. One person answers one call at a time, during their shift. The Friday 7 p.m. emergency call, the Sunday quote request, and the three calls that hit at once on Monday morning still slip through. And by the numbers in the 411 Locals study, which found 62% of calls to small businesses go unanswered, slipping through is the default state of a small-business phone.
When is an answering service enough?
When a warm message-taker is all you need. Overnight coverage for a solo practice, overflow during your busy season, basic reassurance that a human said hello. Fine.
The limitation is baked into the model: the service's job ends when the message is written. Follow-up speed, the thing that decides whether leads convert, is still on you. The lead-response research by Dr. James Oldroyd, later picked up by Harvard Business Review, found you're about 21 times more likely to qualify a lead responding in five minutes versus thirty. A message in your inbox at 9 p.m. that you return at 8 a.m. is already stale.
When does the AI make sense?
When you want the phone answered AND the lead chased AND the admin done, without adding payroll. That's the whole pitch, and it's also why the done-for-you tier costs more than a $49 tool: it replaces work, not just ringing. Our clients' math compares Anna against staff costs, not against other software. A receptionist, a sales function, and back-office data entry stack to roughly $20,500 a month in payroll terms; plans run $997 to $4,997 flat, detailed on the pricing page.
The fair counterargument: an AI is not a person. She won't sign for packages or make coffee. If a caller needs something outside her lane, her job is to capture it cleanly and hand it to you, not fake it. We'd rather tell you that here than have you find it out later. More on the honest trade-offs in is an AI receptionist worth it.
What's the cheapest way to decide?
Call all three of your options and listen like a customer.
- Call your own business after hours tonight and hear what a new lead hears.
- Call an answering service's demo line if they have one.
- Call ours: 518-629-1415, any hour. Or try the live demo in your browser. Anna picks up, and you can push her with real questions about your business, including what she costs (from $997 a month, $99 three-day trial, setup fee waived until August 31, live in 7 days or your first month is free).
Then run your missed-call numbers in the lost-lead calculator and see what a missed call really costs. The comparison usually decides itself.
FAQ
Is an AI receptionist better than an answering service?
Different jobs. An answering service takes messages with a human voice. An AI like Anna answers 24/7, calls leads back in seconds, books, and can close unregulated sales on the call. If follow-up speed matters to your revenue, the AI does more of the job.
How much cheaper is an AI receptionist than hiring?
A full-time front desk runs around $5,000 a month with taxes and benefits, covering roughly 40 hours a week. ZilchWork runs $997 to $4,997 a month and covers all 168.
Can an AI receptionist book appointments like an answering service does?
Yes. Anna qualifies the caller, books the job, and logs it in the CRM herself, which most answering services don't touch.
What happens when the AI can't answer a question?
She captures the details and routes it to you instead of improvising. You get a clean handoff, not a guess.