RingCentral is the product most UK buyers meet first. Search "AI receptionist" and RingCentral AI Receptionist, usually shortened to AIR, is sitting at the top. So it is the comparison we get asked about most, and it deserves a straight answer rather than a sales pitch.
Everything below about RingCentral comes from their own published UK pages, checked on 24 August 2026. Pricing and feature lists are a snapshot and both change often, so check their current page before you decide anything. Where they do not publish something, we say that rather than guessing.
The short answer
RingCentral AIR is an add-on to a phone system. It picks up, works out what the caller wants, answers common questions and routes the call to the right person or takes a message. It does that job well, and it sits inside a phone platform that thousands of UK businesses already run.
Remi is not a phone system. It is an AI front desk for service businesses — clinics and dental practices, salons and barbershops, hotels, restaurants, trades and agencies: it answers the call or the WhatsApp message, finds a genuine slot in your diary, books it, takes a deposit if you ask it to, sends the reminder, applies your no-show fee and chases the unpaid invoice afterwards.
So the useful question is not "which AI answers the phone better". It is: do you need calls answered and routed, or do you need the job finished? If reception is simply too busy to pick up, either product helps. If your problem is that missed calls become missed bookings, the difference is categorical. On RingCentral's own UK page, appointment scheduling is listed as coming soon rather than live.
What each one actually does
This is the comparison that matters, and it is the one most head-to-head pages skip because price is easier to write about.
| Capability | Remi | RingCentral AIR (UK page, 24 Aug 2026) |
|---|---|---|
| Answer and route calls | Yes | Yes |
| Warm transfer to a human | Yes | Yes |
| Book into your diary | Yes — Google Calendar, Acuity, Cliniko | Appointment scheduling listed as coming soon |
| Clinical practice systems (Cliniko, Nookal) | Yes | Not published |
| WhatsApp booking and messaging | Yes, native | Listed as coming soon |
| Appointment reminders | Yes | Not published |
| Deposits taken at booking | Yes | Not published |
| No-show fees applied | Yes | Not published |
| Cancellation backfill and win-backs | Yes | Not published |
| Chasing unpaid invoices | Yes | Not published |
| Included talk-minutes | 500 on Lite, 1,000 on Standard | 100 |
| Overage | £0.15 per minute | £0.40 per minute, 30-second increments rounded up |
| Full business phone system | No | Yes, that is the core product |
| Setup | Done for you | Self-serve |
Two rows in that table are worth pausing on, because they are the ones that decide whether the thing actually earns its keep.
Booking is the whole job
A receptionist who cannot book is a message-taker. That is a real service — it is what a traditional answering service has always sold — but it is a different product, and it leaves the work with you.
Here is why it matters in a clinic. A caller rings at 7pm wanting a Thursday slot. A router takes the name and number and passes it on. Someone rings back the next morning, the caller is at work, they leave a voicemail, and by the time the two of you connect the caller has booked with whoever answered first. The booking did not fail on the call. It failed in the gap afterwards. That gap is where most missed revenue lives, and closing it is the point of an AI front desk.
RingCentral's UK page states plainly that appointment scheduling is coming soon. That is a roadmap item, and roadmap items ship. If booking has gone live by the time you read this, that changes the picture and you should check. What we will not do is credit a vendor for a capability their own page says is not there yet. The same note appears against WhatsApp.
Remi books directly into Google Calendar, Acuity or Cliniko, which means it reads real availability rather than promising a slot it cannot see. Practitioner diaries are the reason clinical practice systems matter here: if the AI cannot read Cliniko, it cannot know that Thursday at 10 is already gone.
What each one costs at real clinic volume
Now the money, which is where per-minute pricing quietly does its work.
RingCentral's UK page publishes AIR at £32 per account per month with 100 included minutes, then £0.40 per minute, billed in 30-second increments rounded up (their US pages show $49 standalone or $39 as an add-on). Remi starts at £89 a month excluding VAT on Lite with 500 talk-minutes included, and Standard is £149 with 1,000 talk-minutes; both bill £0.15 a minute above the allowance. Confirm the VAT basis of RingCentral's figure on their page — we quote Remi's ex VAT and we are not going to assume theirs.
Two things follow from those numbers. The included allowance differs by five to ten times. The overage rate differs by about 2.7 times, £0.40 against £0.15. And because RingCentral rounds each call up to the next 30 seconds, the minutes you are billed for run above the minutes you actually talked. A 2 minute 20 second call bills as 2.5 minutes; on an average call of that length you would pay for about 7% more minutes than were spoken. That is an illustration, not a published figure, but the direction is fixed by their own billing rule.
Here is the arithmetic, using both vendors' published rates:
- Remi Lite = £89 + £0.15 × (minutes − 500)
- Remi Standard = £149 + £0.15 × (minutes − 1,000)
- RingCentral = £32 + £0.40 × (minutes − 100), one account, before the 30-second rounding
| Scenario | Minutes/month | Remi (best tier) | RingCentral | Difference |
|---|---|---|---|---|
| Sole trader, 8 calls a day | 440 | £89 (Lite) | £168 | 1.9× |
| Small clinic, 20 calls a day | 1,320 | £197 (Standard) | £520 | 2.6× |
| Solo GP practice, 50 calls a day | 3,300 | £494 (Standard) | £1,312 | 2.7× |
| Four-partner practice, 200 calls a day | 13,200 | £1,979 (Standard) | £5,272 | 2.7× |
The assumptions, so you can argue with them: a three-minute average call, which sits at the bottom of the 3–5 minute range in practice-management data, and 22 working days a month. Shorter calls shrink both bills. Longer calls widen the gap, because Remi's curve is nearly flat above 1,000 minutes and RingCentral's is a straight line from 100. Plug your own call log into the two formulas above; that is more useful than any table we can write. There is a fuller breakdown of how the whole UK market prices this in our guide to what an AI receptionist costs in the UK.
And the fair reading of the low-volume end: RingCentral's £32 base is well below anything Remi charges, and 100 included minutes carry a light user a long way. Set the two formulas equal and RingCentral is the cheaper of the two below roughly 242 minutes a month, about four calls a day on a three-minute average. Under that line, price is not a reason to choose Remi.
WhatsApp, deposits and the invoices nobody chases
Price is the hook. The part that changes a clinic's week is the work that happens after the call.
Patients and clients message. They message at 9pm, they message from the train, and they expect a reply on the channel they used. Remi handles WhatsApp natively — booking, rescheduling, reminders, the lot — alongside voice. RingCentral lists WhatsApp as coming soon. Across the whole platform-vendor category, WhatsApp messaging is close to absent, which is odd given how UK service businesses and their customers actually communicate.
Then there is money. Remi can take a deposit at the point of booking, send the reminder, apply your no-show fee when someone does not turn up, backfill a cancelled slot from your waiting list, win back clients who have not been in for a while and ask happy ones for a review. It also chases unpaid invoices, which no vendor in this category publishes at all — not RingCentral, not Zoom, not any of the platform players. If you have ever spent a Friday afternoon sending polite payment reminders, you know what that is worth.
Remi also speaks 11 languages across messaging, with English and Afrikaans on voice, and hands over to a human on request rather than trapping the caller. If you run a surgery specifically, the constraints are different enough that we wrote them up separately in AI receptionists for GP surgeries.
Where RingCentral is the better choice
There are real cases where we would tell you to buy theirs.
- You already run RingEX. AIR is an add-on to a system you have already bought, configured and trained people on. One vendor, one bill, one admin console, no new number to port. That convenience is worth genuine money, and no feature table captures it.
- You take very few calls. Below about 242 minutes a month on their published rates, RingCentral costs less than even Remi Lite at £89. A sole practitioner with two or three calls a day should take the cheaper option.
- You need a phone system, not a front desk. Remi does not replace your phone system. RingCentral is one, with extensions, IVR, call queues, contact-centre features and a UK support organisation behind it. If that is the gap you are filling, we are not the answer.
- Routing is genuinely the job. Some businesses do not book anything. Calls need to reach the right person and nothing more. That is exactly what AIR is designed for, and paying for booking, deposits and invoice chasing you will never use makes no sense.
- Scale and procurement. RingCentral is a large public company with the compliance paperwork, SLAs and enterprise contracting that some buyers are required to have.
How to choose
A short decision list, honestly applied.
- Do callers need to book? If yes, ask any vendor to demonstrate a booking made into your actual diary, on the call, today. Not on a roadmap.
- What is your real monthly talk time? Take it from your phone bill, not from memory. Then run both formulas above. Under ~242 minutes the pricing argument goes the other way.
- Do your clients message you? If WhatsApp is where your bookings already happen, a voice-only product is solving half the problem.
- Do you already run their phone system? If yes, weight that heavily. Integration you already own beats features you have to bolt on.
- What happens after the appointment is booked? Reminders, deposits, no-show fees, unpaid invoices, lapsed clients. That is where the money leaks in most clinics, and it is the part the phone-system vendors do not sell.
If the answer to most of those is "we need the job finished, not just answered", that is the case for Remi. If it is "we need calls to reach the right person and we already run RingCentral", buy theirs. We would rather you got the right one. You can see how Remi works for UK clinics on our clinics page.