Miss enough calls and texts, and sooner or later someone suggests a human answering service — Ruby, Moneypenny, that world. They're the traditional fix. But it's 2026, and there's now a genuine alternative worth weighing properly. The choice comes down to three things: what it costs, what it actually knows, and how fast it moves. Here's both sides, straight.
A human service sends your overflow calls to a call centre, where someone works off a script you wrote them. Where they shine: a real voice for the dreadful calls — legal rows, medical scares — and customers who simply prefer talking to a person. Where they don't: every call costs real money per minute, the operator knows only what's on the script (ask about your prices or your postcode patch and you're stuck), evenings and weekends carry surcharges, and texting back and forth isn't what they're built for.
An AI receptionist like Susan is software bolted onto your WhatsApp number and your diary. It reads incoming messages and answers from your actual business facts. Its case: replies in seconds at 3am costing nothing extra, knows your exact prices and service area, books straight into the calendar — for a fraction of the money (free to try, versus £250+ a month). Its limits are honest ones: it can't make the tea or greet walk-ins, and a genuinely distressed caller on voice still wants a human being.
| The question | Human service (Ruby/Moneypenny style) | AI receptionist (Susan) |
|---|---|---|
| Monthly cost | £150–£500+ | Free to try |
| Speed | Half a minute to two minutes | Seconds, any hour |
| What it knows | Whatever fits on the script | Your prices, hours, and rules |
| Messaging | Bolt-on or manual | It's the native channel |
| Diary and records | Someone types up a message log | Straight into Google, Jobber, Xero, and friends |
| Nights and weekends | Surcharged | Same flat deal, 24/7 |
Frequently Asked Questions (FAQ)
Do I have to pick one?
No — plenty of firms run both. AI front desk on WhatsApp eats the 24/7 volume; overflow calls go to the humans at peak times. Horses for courses.
But won't customers hate talking to a robot?
They hate bad robots — the keyword kind that understands nothing. An AI that answers the actual question, quotes the price, and locks the slot in thirty seconds? Customers love that. Speed forgives a lot.
What's the yearly saving, roughly?
Against a part-time receptionist (~£18k a year) or a call-centre bundle (~£3.6k), the AI desk typically saves somewhere between £3k and £15k. Your mileage depends on call volume.