Auto attendant vs AI receptionist: which to choose

Most business phone systems come with a phone menu. For a staffed office with separate teams, it still does the job. For most small businesses, it stands between the caller and an empty office.

This chapter of our AI receptionist guide compares a menu and an AI receptionist on five real calls, shows when each one is right and how to combine them. It ends with menu scripts and a one-week plan to switch.

Line wrote this guide, and Line sells an AI receptionist. Every competitor price and quote links to its source.

What is the difference between an auto attendant and an AI receptionist?

An auto attendant routes a call. An AI receptionist deals with it. A menu asks the caller to press a key and sends them to a person, a team or a voicemail box. An AI receptionist talks to the caller, answers questions from your facts, takes their details and passes urgent calls to a person.

Five terms get mixed up:

• Auto attendant (automated attendant, phone menu). A recorded menu that routes callers by key press. Each key sends a tone, called DTMF. Most can also route by time of day.
• IVR (interactive voice response). The wider term for any phone system that responds to keys or speech. A speech-recognition IVR listens for set words: Microsoft calls them "predetermined basic voice commands" (Microsoft). Any other word fails.
• Ring group (hunt group). A set of phones that ring together, or in turn.
• Call queue. "Analogous to a waiting room", in Microsoft's words. Callers hold until someone is free.
• AI receptionist. Software that answers in a natural voice, understands callers in their own words, answers from your facts and takes details.

What is an AI auto attendant?

An AI auto attendant routes calls by conversation instead of a menu. The caller says "I need to move my appointment on Thursday", and the system sends the call to the right place. Microsoft's Teams Phone Agent works this way: it extends auto attendants with "AI-driven, human-like conversations that screen calls, answer questions, manage appointments, and route callers without fixed menus" (Microsoft). An AI auto attendant mainly routes the call. An AI receptionist mainly deals with it.

What each one does with a call

For voicemail, a human answering service and hiring, see the five-way comparison in the main guide.

IVR vs AI receptionist: the same five calls, handled both ways

On almost every call, an AI receptionist wins because it deals with the call instead of routing it. On calls for a named person in a staffed office, a menu does as well and costs less.

The business is Harbour Heating, a made-up firm with four engineers and Jo in the office. Its menu says: "Thank you for calling Harbour Heating. For a new job or a quote, press 1. For a job we're already booked in for, press 2. For accounts, press 3. For anything else, press 0." Its AI receptionist says: "Hello, you're through to Harbour Heating. I'm the virtual assistant. How can I help?"

1. A new enquiry at 11am

Menu. The caller presses 1. Jo is on another call, so after 20 seconds the caller hears voicemail and rings the next firm.

AI receptionist.

Caller: "I need a quote for a new boiler."

AI: "I can help with that. What's your postcode, and what boiler do you have now?"

Caller: "SK4. It's an old combi."

AI: "Thanks. Can I take your name and the best number? … So that's 07700 900123. Jo will call you back today to book a survey."

2. An existing customer asks for Dave

Menu. There is no option for Dave. The caller presses 2, which rings Jo. A dial-by-name directory would ring Dave, but he is under a floor in Didsbury.

AI receptionist.

Caller: "Is Dave there? He's fitting our radiators."

AI: "Dave's out on a job right now. I'll take a message for him. What's it about?"

Caller: "Can he start at nine tomorrow instead of eight?"

AI: "I'll pass that to Dave now. He or Jo will confirm."

Some AI receptionists can put a caller through to a named person. Ask each provider whether theirs can.

3. "Are you open on Saturday?"

Menu. No option fits. The caller sits through all four options, presses 0 and interrupts Jo with a five-second question.

AI receptionist.

AI: "Yes, the office is open on Saturdays from 8 till 1. Is there anything else?"

This is the call a menu handles worst and an AI handles best.

4. Water through the ceiling at 8pm

Menu. The after-hours menu says: "We're closed. For a heating or plumbing emergency, press 1." That rings the engineer on call, if you keep a rota. Callers also press 1 for things that are not emergencies, because nothing stops them.

AI receptionist.

Caller: "Water is coming through my kitchen ceiling."

AI: "That's an emergency, so I'll pass it to the engineer on call now. If it's safe, turn off the water at the stopcock. What's your address?"

The AI follows the emergency rule you wrote. How it reaches the engineer depends on the provider: a transfer, a text or an urgent message.

5. A caller who just says "operator"

Menu. On a keypad-only menu, saying "operator" does nothing. The menu repeats, then sends the call to its default route, often voicemail.

AI receptionist.

Caller: "Operator. I just want a person."

AI: "Of course. Can I take your name and what it's about, so the right person is ready when they call you?"

If the caller asks again, your hand-off rule takes over.

When is an auto attendant still the right choice?

An auto attendant is the right choice when callers need different people and someone is there to answer each option. It fails when the menu routes callers to people who are not there.

It works when

• Someone is always there to answer. A staffed reception, a sales team, an accounts desk.
• Callers want a department or a site. "For Harrogate, press 2" saves a transfer.
• Volume is high and calls are easy to sort. A menu costs the same at any volume. A per-minute AI charge grows with every call.
• Cost comes first. Most UK cloud phone systems include a menu.

It fails when

• The team is small. If every option rings the same two phones, the menu adds 15 to 20 seconds and sorts nothing.
• Nobody is there to route to. A menu that ends in voicemail is still voicemail. Good voicemail greetings help, but a recording cannot take a booking.
• The office is closed. After hours, a menu can only play a message or ring someone's mobile.
• Callers want answers, not people. Opening hours, prices, "do you cover my area?".
• The menu keeps growing. Callers who cannot find their reason press 0 or hang up.

The FCA, which regulates financial firms, lists "phone systems, menus or webchats that are difficult to navigate" as a cause of harm to customers. Its Consumer Duty guidance gives this example of poor practice:

"A firm uses an automated telephone system as part of its consumer support. This automated system only provides options to progress with queries regarding a few commonly raised issues. It does not provide a route for customers to seek support regarding other issues. … This firm's consumer support does not work effectively."

FCA FG22/5, July 2022

The rule binds FCA-regulated firms. The lesson applies to every business: a menu must always have a route for "anything else".

Does a small business need a phone menu?

Most small businesses do not. A phone menu for a small business earns its place only when callers need different people and those people are free to answer. IVR for a small business made sense when the only other choice was a receptionist. For a team of one to five, ring everyone at once, then send the calls nobody answers to an AI receptionist, or to voicemail with a missed-call text.

Auto attendant vs call queue: what is the difference?

An auto attendant decides where a call goes. A call queue holds the caller until someone in that team is free. Larger teams use both: the menu sorts callers by reason, and each team has a queue.

Microsoft advises a menu in front of every queue: "Call queues don't provide separate call routing for off hours and holidays. Even if your call queue is staffed 24/7, we recommend using an auto attendant to direct calls to the call queue" (Microsoft).

When you combine them:

1. Use a queue only with enough people. A queue helps when calls arrive faster than a team can answer. In a team of two, it mostly adds hold music.
2. Set a maximum wait, such as two minutes. After it, send the caller to voicemail, a call-back request or an AI receptionist.
3. Watch the abandon rate. The FCA suggests firms monitor "speed to answer the telephone and average wait times, call abandon rates" (FCA FG22/5). Your call report shows how many callers hung up while they waited.

How to combine a phone menu and an AI receptionist

Three set-ups work, and all three keep a route to a person. Pick the one that matches who answers your phones today.

Menu first, AI when nobody answers

For teams or sites that are staffed most of the day.

1. The menu offers up to three options, and "for anything else, press 0".
2. Each option rings that team's phones for about 20 seconds.
3. If nobody answers, the AI receptionist picks up instead of voicemail and takes the details.
4. Outside opening hours, the AI answers every call.

AI first, routing by what the caller says

For most businesses: the AI does the work, and the team takes the decisions you keep.

1. The AI answers every call, says it is an assistant and asks how it can help.
2. It answers and acts using your knowledge and connected systems: hours, prices, bookings, job and order status.
3. When a caller needs a particular person, it takes the details for them, or puts the call through if your provider supports transfers.
4. Emergencies, remedies beyond its limits and anyone who asks for a person follow your handover rules.

Split by opening hours

The simplest set-up, and a safe first step: ring the team in opening hours, and let the AI receptionist answer when the office is closed. In Line, opening hours and the workflow builder decide who answers when, and every call the AI receptionist takes is logged with the caller's details and a transcript your team can read in the Line app.

Always keep a route to a person

Whichever way you choose, a caller should reach a person, or the promise of one, in one step: "press 0" in a menu, "can I speak to someone?" with an AI. Callers accept automation more readily when they know the way out. In a survey of 5,001 UK adults for Moneypenny, which sells answering services, 54% were comfortable with an AI that said what it was, and 68% when told it would hand them to a person (Moneypenny / Censuswide, January 2026, vendor-commissioned).

Auto attendant or AI receptionist: which should you choose?

Choose an auto attendant if callers want a particular team and someone is there to answer. Choose an AI receptionist if callers want answers or a call back and you often cannot pick up. Choose both if you have teams and still miss calls.

Answer four questions to see which option fits your calls.

How to write an auto attendant script that works

A good phone menu is short, puts the most common reason first and always offers a person. Seven rules cover almost every menu:

1. Three options at most, plus 0 for a person. Callers must remember every option until they hear theirs.
2. Most common reason first. If your call log shows most calls are bookings, bookings is option 1.
3. Say the option before the number. "For bookings, press 1", not "press 1 for bookings". The caller listens for their reason, then hears the key.
4. Under 20 seconds, from hello to the last option. That is about 50 words. Read it aloud with a timer.
5. Offer to repeat. "To hear these options again, press 9."
6. Always a route to a person or a message. "For anything else, press 0." Also set a default for callers who press nothing.
7. A recording notice, if you record. The law expects reasonable efforts to tell callers (Investigatory Powers Regulations 2018, reg 4). See recording business calls, and AI receptionists and UK GDPR for AI transcripts.

Cut the filler, such as "your call is important to us". Every second of it delays the caller.

Start from one of these three general menus.

Auto attendant script examples for six UK businesses

Replace everything in square brackets. Each one runs under 20 seconds.

Dental practice. Most calls are bookings. A patient in pain needs a clear route.

"Thank you for calling [Practice name]. To book, change or cancel an appointment, press 1. If you're in pain and need to be seen today, press 2. For anything else, press 0. When we're closed, call NHS 111 for urgent dental care."

Letting agent. Tenants with repairs crowd out landlords and applicants.

"Thank you for calling [Agency name]. To report a repair, press 1. To book a viewing or ask about a property, press 2. For landlords, press 3. For anything else, press 0. If you smell gas, hang up and call 0800 111 999."

Garage. Bookings and "is my car ready?" fill the day.

"Thanks for calling [Garage name]. To book an MOT or a service, press 1. To check on a car we're working on, press 2. For anything else, press 0."

Solicitors. New and existing clients need different people, and calls are often recorded.

"Thank you for calling [Firm name]. Calls are recorded to keep a record of what we discuss, as our privacy notice at [website] explains. If you're a new client, press 1. If we already act for you, press 2. For anything else, press 0."

Salon with several sites. Callers want their own salon.

"Thanks for calling [Salon name]. For our [Leeds] salon, press 1. For [Harrogate], press 2. For gift vouchers and anything else, press 0. You can also book online at [website]."

After-hours emergency line. For heating and plumbing firms, so only real emergencies reach the engineer.

"You've reached [Business name]. We're closed until [8am]. For a leak you cannot stop, or no heating with someone vulnerable at home, press 1 for the engineer on call. If you smell gas, hang up and call 0800 111 999. For anything else, press 2 to leave a message."

An AI receptionist needs one greeting and a set of rules instead. The set-up chapter covers both.

How much does an auto attendant cost in the UK?

An auto attendant usually costs nothing extra: most UK cloud phone systems include one on a mid-range plan. Most AI receptionists cost about £37 to £49 a month to start, then 15p to 37p a minute, because they do more with each call. With Line, the AI receptionist is included on the £19 Pro plan, or added to the £4 Starter plan as a paid add-on, and answered calls cost 2p a minute.

Three UK examples, from each provider's pricing page on 3 October 2026, per user a month, excluding VAT:

So when you compare auto attendant phone systems, the menu itself is rarely the cost. The plan it sits on is. Our business phone system guide ranks 14 UK providers on price and call handling.

An AI receptionist is priced by use: per minute or per call past a monthly allowance. If it only takes the calls your menu now sends to voicemail, say 40 a month at two or three minutes each, that fits inside many entry plans. Our guide to AI receptionist costs in the UK lists every provider's price. Line's prices are on the pricing page.

How to move from a phone menu to an AI receptionist in a week

Move in stages and keep the menu as a fallback. Start with the calls a menu handles worst, after hours and unanswered, and measure before and after.

If hand-offs are few and callers get their answers, try AI first for a week. Keep the menu set up so you can switch back in minutes, and keep "can I speak to someone?" working throughout.

Sources

Line wrote this guide in October 2026. Definitions come from Microsoft's Teams documentation, and the regulator's view on phone menus from FCA FG22/5 (July 2022). Provider prices come from each provider's UK pricing page, checked on 3 October 2026. The caller survey is Moneypenny's, run by Censuswide, and is vendor-commissioned.