The AI front desk is now a metered utility – so govern the meter

On 1 October, BT Business launched AI from BT, which it describes as a portfolio of practical and secure AI solutions for UK firms. The first product is AI Receptionist, an agent that answers calls 24/7, schedules appointments, integrates with Outlook and Google Calendar, transcribes conversations and, in the words of BT’s product page, triages callers “to the relevant human”.

The product matters less than the way it is sold. BT calls itself “the UK’s largest provider of business connectivity and technology solutions”, and it is selling AI Receptionist the way it sells connectivity. It comes in 100-minute bundles from 100 to 14,000 minutes a month, billed on inbound minutes, on a monthly rolling contract with no early termination. BT says it is set up through a self-service portal and lets firms keep their existing number and phone system. An optional one-hour onboarding session costs £150.

That takes procurement out of the decision. With self-service setup and no long contract, an agent that answers customers sits on the same kind of order form as a broadband upgrade.

For managing directors of small and mid-market firms, the question is no longer whether to try AI on the phones. When a supplier that describes itself as the country’s largest business connectivity provider sells an agent by the minute, the AI front desk becomes a default utility purchase. The decision that matters is how to buy and govern a metered agent, and BT’s own defaults show where the risks sit.

Read the number behind the pitch

BT’s case rests on research it commissioned from Censuswide: 1,500 decision makers at UK firms with fewer than 250 employees, surveyed between 23 and 28 September 2026, and 2,000 UK adults surveyed between 23 and 25 September. Over two-thirds (67%) of the firms said they miss at least one call on an average day that they believe loses them business.

The headline figure, £3.7bn a year lost to missed calls, is modeled. BT valued each respondent’s banded estimate of lost revenue at its midpoint, scaled nine months up to 12 and multiplied by business counts from the Department for Business and Trade’s business population estimates. For firms with 50–249 employees, BT judged the answers “implausibly low” and applied the 10–49 band’s share of turnover instead. That band supplies £1.01bn of the total. BT says the figure “is based on respondents’ own estimates and is indicative”. It is a reason to count a firm’s own missed calls, not a business case.

Plan for what happens at 100%

Customer admins get emails at 80% and 100% of the bundle. After that, in BT’s words, the “service turns off at 100% unless more minutes or overage enabled”. Overage, charged at what BT calls a “higher rate”, is off by default. Customers can switch it on and set a spend cap, or buy more minutes in 100-minute increments.

That default protects the bill. It also means the agent can go quiet in the month demand runs hottest, during a busy season or a promotion. The FAQ does not say what a caller hears once the service is off, or whether calls fall back to the firm’s own line. That is the first question to put to BT before ordering.

The meter also moves the cost. Minutes are billed on calls received, so usage rises with the firm’s own marketing. A launch offer halves the price of the 100- and 300-minute packages for six months, available from 2 October to 20 November. Those are the bundles most likely to hit 100% if the agent moves from out-of-hours cover to daytime overflow.

Decide what the agent may say

BT pitches the product at sectors from trades and estate agents to legal and financial services, describing the agent qualifying inquiries and “connecting clients to the right specialist”. BT says the agent can be trained on a firm’s website, FAQs or uploaded documents, and that customer data stays private and isn’t used to train AI models.

Whatever the agent is trained on becomes its script. A stale price list or an old opening time can be repeated to callers with full confidence. In a law firm, a financial adviser or a clinic, the line between routine information and advice matters more than the minute count.

Jon James, chief executive of BT Business, said many businesses “are struggling to know how to begin and how to adopt simply and securely”. He called AI Receptionist “the first step”, helping businesses “capture every opportunity, reduce admin and deliver responsive, personalised service around the clock”. BT has answered how to begin with a bundle menu. Governing the agent once it answers is left to the buyer.

Set the rules before it answers

Leaders should treat AI Receptionist, and any rival that follows it onto a connectivity price list, as a metered utility with a customer on the other end. That means five decisions:

• Size the bundle from the firm’s own call volumes, not from BT’s £3.7bn.
• Decide whether silence at 100% is acceptable. If it isn’t, enable overage with a cap the finance director has signed off.
• Name the fallback: which person or line takes a triaged call, and what callers get when the minutes run out.
• Write down what the agent may book, quote or promise, and audit the website and documents it learns from.
• Read the transcripts every week for the first month.

BT has made an AI front desk as easy to order as a phone line. The firms that gain from it will be the ones that decide, in writing, what happens when it stops answering.