AI receptionists and AI customer support for UK SMEs

The short answer. An AI receptionist answers your business phone line, talks to callers in natural speech, answers routine questions, books appointments and passes everything else to a person with a written summary. AI customer support does the same for email, web chat and messaging. Both work well for predictable, high-volume enquiries. They work badly when they're switched on without good information behind them, without a clear way to reach a human, or without anyone checking what they say.

Why this is suddenly everywhere

AI call answering has moved from specialist start-ups to mainstream suppliers. In October 2026 BT Business launched AI Receptionist, a 24/7 call-handling service aimed at small businesses. BT says it works with existing UK landline and mobile numbers, handles routine enquiries, books appointments into Outlook and Google Calendar, and transcribes every call. BT also says customer data won't be used to train AI models.

BT's launch came with its own research: it says 67% of small businesses miss at least one call on an average day that they believe costs them business. Whatever the exact figure in your business, most owners know the feeling of a missed call while on a job, with a customer or out of hours.

BT isn't the only option. Many VoIP and phone system providers now include an AI call answering feature, and there are dedicated AI receptionist services. For email and chat, most helpdesk and customer service platforms now offer AI agents that draft or send replies.

What an AI receptionist can do

Answer every call, including evenings, weekends and when the whole team is busy.
Handle the routine questions: opening hours, location, prices from your published list, whether you cover a postcode, how to book.
Book, move and cancel appointments in your calendar, and send the caller a confirmation.
Take a proper message: name, number, what they need and how urgent it is, sent to the right person as a text or email.
Transfer the call to a person when the caller asks or the conversation needs one.

What AI customer support can do

On email, web chat and messaging, AI is usually even more useful than on the phone, because most enquiries are written and many are repetitive:

Sort and route the inbox: read every incoming message, work out what it's about and how urgent it is, and send it to the right person with a short summary.
Draft replies for a person to check and send, which is the safest way to start.
Answer common questions directly, such as order status, delivery times or returns, using your own policies and systems.
Chase what's been forgotten, flagging enquiries that haven't had a reply within your target time.

The sorting job alone can be worth a lot. We built an AI triage agent that reads, sorts and routes incoming requests, work that used to be a full-time role. It took over a £37.5k-a-year role for about £30 a month. Read the case study.

Where it goes wrong

It doesn't know enough. An AI receptionist is only as good as the information you give it. If your prices, service areas and policies aren't written down clearly, it will guess or give vague answers. Most of the setup work is writing down what your best receptionist already knows.

There's no way out. Callers who want a person and can't reach one will hang up angry. Always offer a clear route to a human, and make sure someone actually picks up the messages.

It makes promises you can't keep. AI can agree to a discount, a delivery date or a refund that nobody approved. Set firm limits on what it may commit to, and have it pass anything outside them to a person.

Nobody checks it. Read a sample of transcripts every week, especially at the start. You'll find wrong answers, missing information and questions you didn't expect, and each one is a quick fix.

The wrong calls. Complaints, upset or vulnerable customers, emergencies and complex sales usually need a person. Decide in advance which calls the AI should hand straight over.

The UK rules to get right

Tell callers. Say at the start that they're speaking to an AI assistant and that the call is recorded. It's honest and it builds trust, and recording and transcribing calls means processing personal data under UK GDPR, so your privacy notice needs to cover it.
Know where the data goes. Find out where recordings and transcripts are stored, for how long, and whether the provider uses them to train its models. Get it in writing.
Keep card payments out. Don't let an AI agent take card details over the phone unless the provider is certified for it under the card industry's PCI DSS standard. Send a secure payment link instead.
Regulated firms need more. If you're FCA-regulated, a law firm or in healthcare, your regulator's rules on advice, vulnerable customers and record-keeping still apply when the first point of contact is an AI.

How to set it up properly

Count your calls and messages. For two weeks, note what people contact you about and when. You'll usually find that a handful of question types make up most of the volume.
Start with the routine. Let the AI handle the top few question types and bookings, and send everything else to a person.
Write the knowledge base. Prices, service areas, hours, policies and the answers to your most common questions, in plain English.
Connect it to your systems. Calendar, CRM, job management or order system, so it can book and look things up instead of just taking messages.
Run it after hours first. Out-of-hours calls are the lowest-risk place to start, and every one it handles is an enquiry you would otherwise have missed.
Review weekly, then widen. Read transcripts, fix gaps, and give it more work as it proves itself.

An off-the-shelf service like BT's is a sensible choice if you mainly need calls answered and appointments booked. If you need the AI to work with your own systems, such as a job management tool, a CRM or an order database, or to handle email and phone together, a custom automation build usually works better. Not sure which applies to you? The free AI scorecard takes about four minutes.

Frequently asked

What is an AI receptionist?

An AI receptionist is a service that answers your business phone calls using AI speech. It can talk to callers naturally, answer routine questions, book appointments and take messages, and it transfers calls to a person when needed. BT Business, VoIP providers and specialist firms all offer them in the UK.

Can I keep my existing phone number?

Usually, yes. Most AI receptionist services, including BT's, work by forwarding calls from your existing number, either all the time, out of hours, or when nobody picks up within a few rings.

Will customers know they're talking to AI?

They should, because you should tell them. A short line at the start of the call, such as "You're speaking to our AI assistant, and this call is recorded", is honest and avoids complaints. Most callers care more about getting a quick, accurate answer than about who gives it.

Is AI call answering better than a human answering service?

For routine calls and bookings, AI is available around the clock, never puts callers on hold and can book straight into your calendar. For complaints, sensitive calls and complex sales, a person is still better. Many businesses use AI for the routine work and pass everything else to their own team or a human answering service.

Can AI answer customer emails as well as calls?

Yes, and it's often the bigger win. AI can read every incoming email or chat message, sort it by topic and urgency, draft or send replies to common questions, and route the rest to the right person with a summary. Starting with drafts that a person checks is the safest way to begin.