RingCentral and Vonage are two of the most established cloud phone systems for UK businesses. Both replace traditional PBX with VoIP, offering calls, video, messaging, and integrations from a single platform. But they’re built on different philosophies. RingCentral is the feature-rich enterprise choice. Vonage is the flexible, API-driven option that scales from small teams to contact centres.
RingCentral starts at £12.99/user/month (annual billing) with team messaging and 100 inclusive calling minutes per user on Essentials, rising to 750 on Standard (£19.99); video meetings start at Standard. Vonage starts at £10/user/month on its Express plan (monthly-billed list price) but meters outbound calls there – unlimited outbound calling starts at Core (£15). The gap narrows quickly once you compare like-for-like features.
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We checked pricing on ringcentral.com/gb and vonage.co.uk in October 2026. RingCentral’s headline prices assume annual billing. Vonage publishes a single per-user price with no annual toggle, so treat it as the monthly-billed list price and ask Vonage about term discounts. Vonage prices exclude VAT.
- RingCentral Premium costs £24.99/user on annual billing - or £28.99 billed monthly, against Vonage Max at £25 (monthly-billed list price); it adds CRM integrations, automatic call recording and real-time analytics
- Vonage starts £7.99 cheaper per user on monthly billing - Express is £10 against RingCentral Essentials at £17.99 billed monthly (£12.99 on an annual plan), but Express meters outbound calls
- Both quote 99.999% uptime - RingCentral lists it as an uptime SLA, while Vonage describes its figure as average availability
- Vonage Core adds unlimited outbound calls at £15 - versus 750 inclusive minutes per user on RingCentral Standard (£19.99)
- Entry plans carry limits - RingCentral Essentials has no video or integrations, and Vonage Express has no CRM or Teams support
Quick Comparison
RingCentral offers four plans from £12.99 to £29.99/user/month. Vonage has three visible tiers from £10 to £25/user/month. Calling allowances differ (RingCentral uses inclusive minutes per user, Vonage meters outbound calls on Express), and feature bundles differ significantly at each price point.
| RingCentral | Vonage | |
|---|---|---|
| Starting price | £12.99/user/month (annual) | £10/user/month (monthly billing) |
| UK calling | 100 inclusive minutes/user (Essentials) to 4,000 (Ultimate) | Inbound unlimited; outbound unlimited from Core (£15) |
| Video meetings | Up to 300 participants (Standard and above) | Vonage Meetings (plan limits not published on pricing page) |
| Team messaging | Yes | Yes |
| CRM integrations | Premium plan (£24.99+) | Core plan (£15+) |
| Call recording | Standard (on-demand), Premium (automatic) | Higher-tier plans or add-on (confirm with Vonage) |
| Contact centre | Native add-on (RingCX) | Vonage Contact Centre (add-on) |
| Desk phone support | Desk phone rental (multi-year contract) | Hardware rental (multi-year contract) |
| Uptime SLA | 99.999% (uptime SLA) | 99.999% (quoted average uptime) |
| Industry recognition | Gartner Leader 11 consecutive years | Strong SME track record |
Pricing at Different Team Sizes
Both charge per user per month. The cost gap between them widens as you add features – RingCentral’s mid-tier plans include more, while Vonage keeps the base price low but charges for add-ons.
| Scenario (20 users; RingCentral annual, Vonage monthly-billed list) | RingCentral | Vonage |
|---|---|---|
| Calls + messaging only | £259.80/month (Essentials) | £200/month (Express) |
| Video + CRM integrations | £499.80/month (Premium) | £300/month (Core) |
| Full suite (analytics, recording) | £499.80/month (Premium) | £500/month (Max) |
| Enterprise (SSO, API, advanced) | £599.80/month (Ultimate) | Custom quote |
At the entry level, Vonage Express saves £59.80/month for a 20-person team against RingCentral’s annual price, or £159.80/month against RingCentral billed monthly . Once you need CRM integrations, automatic call recording and real-time analytics, RingCentral Premium (£24.99/user on annual billing, £28.99 monthly) sits close to Vonage Max (£25/user, monthly-billed list), though the plans bundle different extras: Premium adds single sign-on and hot desking, while Max adds a mobile eSIM and WhatsApp for Business.
Both vendors price per user, so Vonage’s entry-level saving (£2.99 per user against RingCentral’s annual price, £7.99 against its monthly price) scales with headcount. The real decision is which features you need at each tier.
For basic calls and messaging, Vonage is cheaper (£10 vs £12.99/user on RingCentral’s annual plan). For a full unified communications platform, RingCentral Premium (£24.99 annual, £28.99 monthly) and Vonage Max (£25) are close in price, so choose on the extras: Premium adds CRM integrations, automatic recording and analytics, while Max adds mobile eSIM and WhatsApp.
Call Quality and Reliability
Both platforms claim 99.999% uptime – roughly 5.26 minutes of downtime per year. RingCentral lists 99.999% as an uptime SLA, while Vonage’s pricing page describes its figure as based on average availability rather than a contractual guarantee.
Since Ericsson’s acquisition of Vonage in 2022, there have been questions about continued investment in the UCaaS platform versus Ericsson’s core network business. Vonage has publicly committed to its communications platform, though ownership uncertainty matters for businesses signing a long contract.
RingCentral supports HD voice using the Opus and G.722 codecs. For businesses where dropped calls or poor audio quality directly impacts revenue – sales teams, customer service, professional services – this reliability premium matters.
Integrations and Ecosystem
RingCentral offers 500+ pre-built integrations in its App Gallery, including Salesforce, HubSpot, Microsoft Teams, Google Workspace, and Slack (CRM integrations start on the Premium plan). RingCentral itself describes its ecosystem as the largest in communications and collaboration. Vonage connects to major CRMs and has strong API capabilities, but its pre-built integration library is smaller.
RingCentral’s Microsoft Teams integration is a standout feature. If your business runs on Teams, RingCentral can replace your Teams calling plan while keeping the Teams interface – giving you enterprise-grade telephony without changing how your team works. Vonage offers Microsoft Teams compatibility from its Core plan.
Vonage’s developer API platform is where it genuinely leads. Vonage’s Communication APIs let businesses build custom voice, video, SMS, and verification features into their own apps. If you need programmable communications – automated appointment reminders, two-factor authentication, or embedded video – Vonage’s API platform is more mature than RingCentral’s equivalent.
For most UK businesses choosing a phone system, pre-built integrations matter more than APIs. RingCentral wins here. But if your business has developers and custom communication needs, Vonage’s API-first heritage gives it a genuine edge.
RingCentral has the broader integration ecosystem (500+ apps, deep Teams integration). Vonage has the stronger developer API platform for custom communication features. Choose based on whether you need plug-and-play integrations or programmable communications.
RingCentral vs Vonage: Strengths Compared
RingCentral wins on feature depth, reliability, and enterprise readiness. Vonage wins on entry price, API flexibility, and simplicity for small teams.
Use our free Phone System Cost Calculator to get a personalised cost estimate based on your specific requirements.
Our Verdict
RingCentral is the stronger all-round business phone system. Vonage is a better fit for small teams with basic needs or businesses that need programmable communication APIs.
Choose RingCentral if you need a full unified communications platform – calls, video, messaging, and integrations in one system. Its Standard plan (£19.99/user) adds video meetings for up to 300 people, on-demand call recording and Microsoft 365, Google Workspace and Slack integrations, and Premium (£24.99/user) adds CRM integrations and automatic call recording. For businesses planning to scale, RingCentral’s enterprise features and native contact centre mean you won’t outgrow it.
Choose Vonage if you’re a small team that primarily needs voice calls and messaging at the lowest possible price. The Express plan (£10/user) is genuinely good value for businesses that can live with metered outbound calls and no CRM integrations; Core (£15/user) adds unlimited outbound calling. Also choose Vonage if your business needs custom communication APIs – its developer platform for programmable voice, SMS, and video is more mature than RingCentral’s.
Vonage’s lower starting price is attractive, but Express meters outbound calls, so teams that make many calls should compare Core (£15) rather than Express. At the top of the range RingCentral Premium (£24.99 on annual billing, £28.99 monthly) and Vonage Max (£25) are close in price, so the choice comes down to which extras you need.
Looking at other options? Best business phone systems compares 10+ UK providers. Business phone system costs breaks down what you should expect to pay across the market.
