Vonage Business Communications
Cheapest published UK entry price and a unique eSIM business-mobile bundle — under an Ericsson owner still working out what to do with it.
How we testVonage's UK UCaaS is priced simply: Express £10, Core £15 (unlimited UK landline/mobile calling, CRM and Teams integration) and Max £25 (adds a VBC eSIM mobile number, unlimited SMS and WhatsApp) per user per month ex-VAT. It carries a 4.6/5 Trustpilot from 3,238 reviews — the best score of the majors — though some reviewers question that.
Against it: annual terms are the norm for those prices and early termination means paying out the contract; standard support is 8am–8pm weekdays; Ofcom fined Vonage £700k in September 2025 over a 2023 outage that blocked 999 calls; and parent Ericsson has written down over $4bn on the business, installed a new CEO in August 2026 and is openly in turnaround mode, which clouds the UCaaS roadmap. The VBC API exists but requires an approved developer account; no MCP.
Pros
- +Lowest transparent UK entry price
- +eSIM / business-mobile bundle nobody else offers
- +4.6/5 Trustpilot from 3,238 reviews
Cons
- −Ericsson turnaround uncertainty clouds the roadmap
- −Ofcom £700k fine (2025) for a 999-access outage
- −Weekday-only standard support; annual terms typical
Pricing
Minimum commitment: £120 — £10/mo × 1 seat × 12 months. The least you can spend before walking away; excludes numbers, minutes and add-ons.
Express
£10/mo · annual commitment
Month-to-month: not published
- ✓Per user — unlimited inbound, metered outbound
Core
£15/mo · annual commitment
Month-to-month: not published
- ✓Unlimited UK landline/mobile, CRM + Teams integration
Max
£25/mo · annual commitment
Month-to-month: not published
- ✓eSIM mobile number, unlimited SMS, WhatsApp
Specifications
| Rating | 3.7 |
| Month-to-month (entry plan) | Not published |
| Annual commit, per month | £10/mo |
| Minimum commitment* | £120 |
| Min seats | 1 |
| Deployment | Cloud PBX |
| Sales model | Direct |
| Public API | No |
| MCP server | No |
| Emergency 911/999/112 | ✓ |
| Trustpilot (reviews) | 4.6 (3,238) |
| Integrations | Salesforce, HubSpot, Dynamics +4 |
| Commitment for annual rate (months) | 12 |
*How we calculate minimum commitment. Headline per-user prices hide the real cost of trying a platform. Total cost of ownership is licence × seats × term, plus usage, add-ons, setup fees and any early-exit charges. Our "minimum commitment" figure is the floor of that: the entry plan's committed rate × the minimum seats the vendor will sell × the months you must commit to (one month at the month-to-month rate where there is no commitment; the licence price where it is sold per year). It deliberately excludes usage, add-ons and prerequisite licences, so your real first bill will be higher — but never lower than this. For Teams Phone the excluded prerequisites are the Microsoft 365 and Teams licences.
Researched and drafted with AI assistance; reviewed and approved by Tim Meredith. How we use AI