AI receptionist vs answering service vs voicemail: what's best for a restaurant?
An honest comparison of the three ways to handle restaurant calls nobody can answer, covering cost, bookings, allergies and what callers actually experience.
When your team can't get to the phone, there are three realistic options: let it go to voicemail, pay a person to answer it, or use an AI receptionist. Each has a place. This guide sets out what each is good and bad at for a restaurant specifically, so you can pick the right one, including when the answer is "none of them".
At a glance
| Voicemail | Answering service (people) | AI receptionist | |
|---|---|---|---|
| Cost | Free | Usually charged per call or per minute | Usually a monthly fee with a minutes allowance |
| Answers every call | No: many callers hang up | Yes, if staffed for your peaks | Yes, including several calls at once |
| Takes bookings | No, someone has to call back | Often takes a message for you to confirm | Can book straight into your diary |
| Answers questions | No | Only what they've been briefed on | Answers from your menu, hours and FAQs |
| Out of hours | Yes | Depends on the plan | Yes, 24/7 |
| Knows your restaurant | n/a | Varies: often covering many businesses | Set up specifically for you |
| Allergy questions | n/a | Should pass to you | Should always pass to staff |
Voicemail
Good for: restaurants that rarely miss calls, or as a last resort behind other options.
Voicemail costs nothing and is already there. A good message helps: give your opening hours, say whether you take walk-ins, and point people to online booking.
The problem is that many people simply hang up rather than leave a message, especially when they want a table tonight and have other places they can ring. And a message only becomes a booking if someone listens to it and calls back in time.
An answering service (a person answers)
Good for: businesses that want a human voice on every call and have relatively few, predictable calls.
A receptionist answers in your business name, takes messages or bookings, and sends them on to you. People handle unusual calls well and callers know they're speaking to a person.
The trade-offs for restaurants are cost and depth. Pricing is usually per call or per minute, which adds up in a busy week. Shared receptionists often cover many businesses, so they rely on a short brief about yours, and they may take a message for you to confirm rather than booking the table directly. Check what happens at your peak times, such as Friday at 7pm, when every restaurant on their books is busy too.
An AI receptionist
Good for: restaurants that miss calls regularly, especially bookings during service and out of hours.
An AI receptionist answers in your restaurant's name, holds a natural conversation and can deal with several calls at once. A good one is set up from your own information: menu, opening hours, booking rules, parking, and what should always go to a person. It can check availability, book the table and text the caller a confirmation.
What to watch for:
- Allergies. An AI should never tell a caller a dish is safe for an allergy. Those calls should always go to a member of staff. Ask any provider how they handle this.
- Making things up. It should only use the information you've given it, and say when it doesn't know.
- Being upfront. If a caller asks whether they're speaking to an AI, it should say so and offer to pass them to the team.
- Some callers prefer a person. A few people will always want a human. A good set-up makes it easy to reach one.
- Your booking system. Find out exactly how bookings reach your diary.
Which should you choose?
- You rarely miss calls: a good voicemail message is enough. Don't pay for something you don't need.
- You miss a few calls and want a person on every one: an answering service.
- You regularly miss bookings during service and after hours: an AI receptionist will usually catch more of them, at a predictable monthly cost.
If you're unsure, start by working out how much missed calls are costing you. If the number is smaller than the cost of any of these options, keep your money. Whichever you pick, you'll need to divert your calls to it.
Willeau is an AI receptionist built for UK restaurants. It's set up for each restaurant individually, always passes allergy questions to staff, and tells callers it's an AI if they ask.