CircleLoop (£5-15/user/mo, no contract) and bOnline (from £7/mo) lead on UK-specific pricing. Both offer no-contract flexibility. JustCall (£23/user/mo approx) and Aircall (£24/user/mo approx) suit teams that need CRM depth. wlur is live now at £12.50/user/mo, with a 7-day free trial.
Most UK business phone comparisons just swap a currency symbol onto a US pricing page. That misses two things that matter here. First, you need to know which number type you need: 01/02 geographic, 03 national-rate, or 080 freephone. Second, you need to know how Ofcom's porting rules affect switching providers. A bad switch can mean losing your number.
This list prices everything in GBP where a UK rate exists. It also calls out the US-first tools that only offer a converted dollar price. Those tools have no real UK number infrastructure behind them. Say you're comparing CircleLoop against Aircall. The honest answer depends on your needs: UK-specific number types, or broader CRM integration.
How we compared
We took GBP prices directly from each UK-facing pricing page, in July 2026. Some providers have no UK-specific page: Aircall, JustCall, and Dialpad. For these, we noted the US dollar price instead. We flagged that price as a conversion, not a native UK rate.
We checked Ofcom's own guidance on number ranges and porting rules. We did not rely on provider marketing copy. This is desk research, not a live test. Treat porting timelines as estimates from providers. Confirm the real timeline with your specific losing and gaining provider.
At a glance
| Tool | Best for | Entry price | Seat minimum | Standout |
|---|---|---|---|---|
 CircleLoop | UK-native, no contract | £5/user/mo + usage (£15 unlimited) | 1 | Pay-as-you-go or unlimited, no lock-in |
 bOnline | Cheapest UK entry price | £7/mo (Starter) | 1 | From £7/mo, CRM add-on £8/user/mo extra |
 JustCall | Sales teams needing CRM depth | ~£23/user/mo (converted) | 2 | US pricing converted, no native UK rate card |
| Aircall | Support teams wanting Shopify/CRM sync | ~£24/user/mo (converted) | 3 (~£72/mo floor) | Native CRM integrations, US-first pricing |
 Dialpad | AI transcription | ~£12/user/mo (converted) | 1 | AI call summaries, no UK-native billing |
 RingCentral | Larger UK teams needing unified comms | £16-25/user/mo (UK-priced) | 1 | Has a genuine UK pricing page and 03/080 numbers |
| Vonage | Established telecom brand in the UK | ~£11/line/mo (converted) | 1 | Long-standing UK presence, add-ons stack |
 wlur | UK number types, live now | £12.50/user/mo | 0 | 01/02/03 numbers and free porting, live now |
The list
CircleLoop
UK-native pricing with no contractCircleLoop is built for the UK market from the ground up. Its pricing and number types make sense here, with no conversion guesswork.
CircleLoop offers two UK-priced plans. Pay As You Go costs £5/user/month plus VAT. It gives you unlimited inbound calls and outbound calls at 3p/minute. Unlimited costs £15/user/month plus VAT. It covers unlimited outbound calls to the UK, US, Ireland, Australia, New Zealand and Canada. Both plans include one UK number and no setup fees, per CircleLoop's pricing page.
It's a genuinely no-contract product. This matters for small businesses that don't want a 12 or 24-month lock-in. Reviewers on G2 say the mobile app is solid. But they also say call queue and IVR features are more basic than enterprise-focused competitors.
- Standout:
- No contract, VAT-inclusive UK pricing, and a real pay-as-you-go tier for low call volume
- Pricing:
- £5/user/month + VAT (Pay As You Go, calls at 3p/min) or £15/user/month + VAT (Unlimited). SMS 4p/message on both. As of CircleLoop's pricing page, July 2026.
- Makes sense if:
- You're a UK small business that wants clear GBP pricing and no contract lock-in.
Honest cons
- ·IVR and call queue features are more basic than RingCentral's or Aircall's
- ·The Unlimited plan's international coverage only reaches six destination countries
- ·No native Shopify or deep CRM sync beyond basic integrations
bOnline
Cheapest genuine UK entry pricebOnline has the lowest starting price on this list in GBP. But its cheapest tier is thin on features.
bOnline's Starter plan costs £7/month for a digital phone line. It includes unlimited inbound calls and 100 outbound UK landline minutes, per bOnline's pricing page. The Unlimited Calling plan is £9.95/month (promotional, regular £13.95). It steps up to £15.50/month with a bundled desktop phone.
Add-ons matter here. CRM integration costs an extra £8/user/month. AI call recording with transcription is another £8/user/month. If you need CRM sync from day one, the real monthly cost climbs well past the £7 headline.
- Standout:
- Lowest published UK starting price at £7/month, with a price-match guarantee
- Pricing:
- £7/mo (Starter) to £15.50/mo (Unlimited + desk phone). CRM add-on £8/user/mo. AI transcription £8/user/mo. As of bOnline's pricing page, July 2026.
- Makes sense if:
- You want the lowest possible headline price and don't need CRM sync bundled in.
Honest cons
- ·CRM sync and AI features cost extra, £8/user/month each, not included as standard
- ·The Starter plan's 100 outbound minutes will run out fast for any active small business
- ·The £9.95 Unlimited price is a promotion; the regular rate is £13.95
JustCall
Sales teams that need CRM depth over UK-native billingJustCall has no UK-specific pricing page. You pay a converted dollar rate for strong CRM and dialer features.
JustCall's pricing is published in USD at $29/user/month. That converts to roughly £23/user/month at current exchange rates. There's no dedicated GBP rate card as of July 2026. It also has a 2-seat minimum, so a two-person UK business pays roughly £46/month at the floor.
What you get for that is native CRM integration with Salesforce, HubSpot and Pipedrive. You also get a predictive dialer built for outbound sales. UK-native tools like CircleLoop don't match this feature-for-feature.
- Standout:
- Native CRM integrations and a sales dialer, stronger than most UK-focused competitors
- Pricing:
- $29/user/month (~£23 converted), 2-seat minimum (~£46/mo floor). As of JustCall's pricing page, July 2026.
- Makes sense if:
- CRM and dialer depth matter more to you than a UK-native billing relationship.
Honest cons
- ·No native UK pricing; billed in USD and open to exchange rate swings
- ·The 2-seat minimum adds cost for solo UK founders
- ·Confirm UK number types (03, 080) directly, since coverage isn't UK-first
Aircall
UK support/sales teams wanting CRM and Shopify syncAircall has strong integrations. But the 3-seat minimum and USD pricing make it one of the pricier options for a small UK team.
Aircall's $30/user/month annual price converts to roughly £24/user/month. It has a 3-seat minimum, meaning a small UK team pays around £72/month at the floor, before add-ons. Pricing isn't published in GBP; it's a USD rate subject to conversion.
The trade-off is real integration depth. You get native Shopify order pop, HubSpot and Salesforce sync, and AI features (at $9-15/user/month extra) that outperform most UK-native competitors on paper.
- Standout:
- Native CRM and Shopify integrations that UK-focused competitors don't match
- Pricing:
- $30/user/month annual (~£24 converted), 3-seat minimum (~£72/mo floor). AI add-ons $9-15/user/mo. As of Aircall's pricing page, July 2026.
- Makes sense if:
- You need CRM and Shopify depth and can absorb the 3-seat minimum and USD billing.
Honest cons
- ·3-seat minimum is expensive for a UK team of one or two
- ·No native GBP pricing or VAT-inclusive rate card
- ·AI features cost extra on top of an already higher base price
Dialpad
AI call summaries for UK teamsDialpad has good AI features at a reasonable converted price. But again, there's no UK-native billing.
Dialpad's $15/user/month annual price converts to roughly £12/user/month. That's competitive against CircleLoop's Unlimited tier. There's no dedicated UK pricing page, so the rate is a USD conversion, not a locked GBP figure.
The AI transcription and call summary features are genuinely useful for a UK support team. You get a fast recap after each call, without needing a separate note-taking habit.
- Standout:
- AI-generated call summaries and transcripts included on the base plan
- Pricing:
- $15/user/month annual (~£12 converted), 1-seat minimum. As of Dialpad's pricing page, July 2026.
- Makes sense if:
- AI call summaries matter more to you than a UK-native billing relationship.
Honest cons
- ·No UK-native pricing; USD rate open to exchange rate shifts
- ·Confirm UK number type availability (03, 080) directly before assuming coverage
- ·Monthly (non-annual) billing costs more than the advertised rate
RingCentral
Larger UK teams needing a genuine UK pricing pageRingCentral is one of the few US-founded providers with real UK-priced plans and clear number-type support.
RingCentral publishes UK-specific pricing at £16-25/user/month, depending on tier. Its UK product pages explicitly reference 03 and 080 number support. That matters if you need a national-rate or freephone number, not just a geographic one.
It's built as a unified comms platform: phone, video, and messaging. That's more than most small UK businesses need on day one, and the admin setup reflects that complexity.
- Standout:
- Genuine UK pricing page with explicit 03 and 080 number type support
- Pricing:
- £16-25/user/month depending on tier, 1-seat minimum. As of RingCentral's UK pricing page, July 2026.
- Makes sense if:
- You need unified comms and want an explicit UK pricing page with clear number-type support.
Honest cons
- ·More platform (video, messaging) than most small UK teams need for phone alone
- ·Reviewers mention a steep learning curve for admin configuration
- ·Higher entry price than CircleLoop or bOnline for equivalent basic calling
Vonage
Established telecom brand with a long UK presenceVonage has a recognisable brand and wide reach. But à la carte pricing makes the real UK monthly cost unpredictable.
Vonage's $13.99/line/month base rate converts to roughly £11/line/month. But its pricing model is built around add-ons for features that competitors bundle in, per Vonage's pricing page. There's no dedicated UK rate card; it's a USD conversion.
For a UK business with an existing Vonage relationship, or specific legacy requirements, it remains a workable option. For a business starting fresh in 2026, CircleLoop or bOnline offer clearer, VAT-inclusive UK pricing.
- Standout:
- Long-standing telecom brand recognition and broad underlying network reach
- Pricing:
- $13.99/line/month base (~£11 converted), features billed as add-ons. As of Vonage's pricing page, July 2026.
- Makes sense if:
- You want an established telecom brand and don't mind assembling your plan from add-ons.
Honest cons
- ·À la carte pricing makes the real monthly total hard to predict
- ·No UK-native, VAT-inclusive pricing page
- ·Admin interface feels dated compared to newer UK-focused entrants
wlur
UK number types and free porting, live nowour productwlur is our product, so grade this entry accordingly. UK numbers and porting are live today.
wlur is our product, so grade this entry accordingly. UK numbers are live now with a genuine GBP price: £12.50/user/month. Standard UK number porting in and out is free either way, under Ofcom's rules, rather than a converted USD rate.
There's a 7-day free trial with no card required. You can confirm which UK number ranges (01/02/03/080) are supported. You can also see how porting speed feels in practice, rather than taking our word for it.
- Standout:
- Genuine GBP pricing at £12.50/user/month with no seat minimum
- Pricing:
- £12.50/user/month ($15, €14), 20% off annual, extra numbers $5/month. July 2026.
- Makes sense if:
- You want to try UK number porting yourself with the free trial.
Honest cons
- ·wlur is new, so there isn't a long UK customer review history yet to check against
- ·Fewer UK number-type edge cases have been tested publicly than with CircleLoop or bOnline
- ·Porting speed track record is shorter than the more established UK-first providers
What a UK team of 1, 3 and 8 actually pays per month
At 1 user, CircleLoop's PAYG tier is roughly £5 plus usage. Quo's converted rate isn't UK-native, so CircleLoop and bOnline (£7) are the real UK-priced comparisons. JustCall's 2-seat minimum means a solo UK user pays around £46 (2 x ~£23 converted), not the ~£23 headline.
At 3 users, CircleLoop Unlimited costs £45 (3 x £15). bOnline's Unlimited Calling is roughly £30 (3 x £9.95 promotional rate). Aircall's 3-seat minimum lands at exactly ~£72 (3 x ~£24 converted). That's its floor, with no discount for hitting the minimum.
At 8 users, CircleLoop Unlimited is £120. bOnline is roughly £80. JustCall is ~£184 converted. Aircall is ~£192 converted. Run your own call volume and number-type needs through the calculator. PAYG usage and USD conversion both shift the real total.
Team phone cost calculator →How to choose a UK small business phone system
- 01Decide your number type first. 01/02 geographic numbers signal a local presence. 03 numbers give a single national point of contact at local-call rates. 080 numbers are free to the caller but cost you per minute.
- 02Prefer a provider with a genuine GBP, VAT-inclusive pricing page (CircleLoop, bOnline, RingCentral) over a USD conversion. This gives you budget certainty against exchange rate movement.
- 03Check Ofcom's porting rules before switching. Your existing provider must release the number. Most UK providers quote 1-2 weeks for a straightforward geographic number port.
- 04If you need CRM depth (Salesforce, HubSpot, Pipedrive) alongside UK calling, weigh JustCall or Aircall's USD pricing against CircleLoop or bOnline's UK-native but lighter CRM support.
- 05Watch for UK-specific add-on costs. bOnline's CRM sync and AI transcription are each a separate £8/user/month. That changes the real monthly total significantly.
Frequently asked questions
What's the difference between 01, 02 and 03 UK phone numbers?
01 and 02 are geographic numbers tied to a local area code. 03 numbers are non-geographic, but billed at the same rate as a national 01/02 call. They're useful for a single UK-wide contact number, per Ofcom's guidance.
Are 080 numbers free for my business or the caller?
080 (0800/0808) numbers are free for the caller, from landlines, mobiles and payphones. The business receiving the call pays the cost, per Ofcom.
How long does it take to port a UK business number?
Straightforward geographic number ports typically take 1-2 weeks, according to most providers' documentation. Non-geographic or complex ports can take longer.
Which UK phone system has the lowest starting price?
bOnline's Starter plan at £7/month is the lowest published entry price among UK-facing providers, as of July 2026. It's a limited-minutes tier, though.
Does CircleLoop require a contract?
No. CircleLoop is explicitly no-contract, per its own pricing page. This suits small businesses wary of 12 or 24-month lock-ins.
Is it worth using a US-based provider like Aircall or JustCall for a UK business?
Only if their CRM or dialer features genuinely outweigh the lack of native GBP pricing and UK number-type transparency. Verify UK number availability directly before committing.
Do I need VAT-inclusive pricing as a UK small business?
It's not required, but it makes budgeting simpler. CircleLoop and bOnline both quote VAT explicitly on their pricing pages. USD-priced tools don't address VAT at all.
What happens to my UK number if I cancel my provider?
You can port it to a new provider before cancelling. Cancelling first without porting can mean losing the number. Always start the port before ending service.
Can I get an 0800 freephone number from any UK phone system?
Most UK-facing providers, including CircleLoop, bOnline and RingCentral, support 0800 numbers. Confirm with US-first providers like Aircall or JustCall directly, since UK number types aren't their primary focus.
Is wlur available for UK businesses now?
Yes. wlur is our product, live today, with a 7-day free trial and no card required. UK numbers and genuine GBP pricing (£12.50/user/mo) are available now. Weigh our ownership of the product against its shorter review history.
How much does adding CRM sync cost on top of a cheap UK phone plan?
bOnline charges £8/user/month extra for CRM integration. Factor that into any "from £7" headline price if CRM sync is a requirement.
Do UK small businesses need a landline number or is a mobile number enough?
A dedicated business number, whether geographic or non-geographic, is generally worth it. It helps with professionalism and keeps business calls off a personal mobile.
Last verified: July 2026. Prices from providers' public pricing pages on that date. wlur is our product; its entry above says so.