67% of UK small firms miss a money-losing call every day — so BT built an AI to answer the phone

13 October 2026. BT Business has put an AI on the front line of Britain's smallest companies. AI Receptionist, the first product in a new "AI from BT" portfolio, answers customer calls 24/7, handles routine enquiries, books appointments into Outlook and Google Calendar, and transcribes conversations for follow-up. Behind the launch sits a stark number from BT-commissioned research: 67% of UK small and medium-sized businesses say that on an average day they miss at least one call they believe results in losing business — an estimated £3.7 billion a year in lost revenue across the UK's small firms.

What the AI Receptionist actually does

The always-on agent answers calls and handles routine enquiries, schedules appointments with confirmations, and captures and transcribes conversations to generate insights from customer interactions. BT says it works across any UK fixed or mobile network, so businesses keep their existing number without replacing their phone system, with self-service setup, flexible contracts, and customer data that stays private and is not used to train AI models. The named use cases are unfussy: tradespeople fielding booking calls, retailers answering availability questions, pubs and restaurants handling table enquiries while staff serve. It arrives alongside a free AI Adoption Hub of guides and prompt packs. The workload case is real: 58% of SMBs spend between 30 minutes and two hours every day answering customer calls, and 85% say it interrupts other work.

The missed-call maths

The research — a Censuswide survey of 1,500 decision makers at UK SMEs with fewer than 250 employees, run across all 12 UK regions in late September — puts the cost of unanswered rings at £3.7bn a year, roughly £71m a week. Consumers do not forgive it: 75% of potential customers give a business three call attempts before giving up, and 58% say they would tell friends and family to avoid a business that failed to pick up. The phone remains the number one preferred way to contact a business — which is precisely why an unanswered one stings.

The cheaper fix predates AI

Much of what an AI receptionist is sold against — the phone ringing out while someone is up a ladder or mid-service — is solvable with plain routing that has existed for years. A virtual phone number answered over SIP can ring several destinations sequentially or simultaneously, spill over to voicemail-to-email, announce callers with a call whisper, and follow business-hours rules — so the call is answered by a human or lands in an inbox, rather than vanishing. That runs from free pay-as-you-go to a £9.97-a-month Pay Monthly plan, with a SIP phone or softphone included. AI on top is a genuine upgrade; AI bolted onto a number that still misses calls is not. How virtual numbers work, end to end, is in our DID numbers guide.

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