--- title: "VoIP: ranked reviews and comparisons" description: "Business VoIP and phone system providers." canonical: "https://saaskly.com/category/voip" last-updated: "2026-09-28" --- # VoIP: ranked reviews and comparisons > Business VoIP and phone system providers. - Last updated: 2026-09-22 ## Ranking Ranked by Saaskly's editorial score (0–5). Ties share a rank. Method: https://saaskly.com/editorial-policy.md 1. **1. [VoIPstudio](https://saaskly.com/category/voip/voipstudio.md)**: 4.5/5 (marketing partner; score is editorial). UK-based, contract-free cloud PBX with the broadest feature set at its price point, and one of the very few phone platforms with a real REST API, webhooks and a native MCP server. 2. **2. [Microsoft Teams Phone](https://saaskly.com/category/voip/microsoft-teams-phone.md)**: 3.9/5. The obvious phone system if you already live in Microsoft 365: cheap on paper, with the real cost hiding in licence stacking and the PSTN route you choose. 3. **3. [Ringover](https://saaskly.com/category/voip/ringover.md)**: 3.8/5. French-built cloud phone with unlimited calling to 110 destinations and all data hosted in France: the EU-sovereign pick, on a 12-month commitment. 4. **4. [Vonage Business Communications](https://saaskly.com/category/voip/vonage-business-communications.md)**: 3.7/5. Cheapest published UK entry price and a unique eSIM business-mobile bundle, under an Ericsson owner still working out what to do with it. 5. **5. [Zoom Phone](https://saaskly.com/category/voip/zoom-phone.md)**: 3.6/5. The cheapest big-brand unlimited UK calling plan, bolted onto Zoom Workplace, with no UK data-residency region and the worst Trustpilot score in this comparison. 6. **6. [8x8 X Series](https://saaskly.com/category/voip/8x8.md)**: 3.4/5. Enterprise UC and contact centre on one platform with a financially backed five-nines SLA, sold on quote, on contract, and with a poor support record on Trustpilot. 7. **7. [3CX](https://saaskly.com/category/voip/3cx.md)**: 3.3/5. Software PBX licensed per simultaneous call, self-hosted or hosted by 3CX: cheap per seat at scale, sold only through partners who increasingly describe it as hard to work with. 8. **8. [FreePBX / Asterisk](https://saaskly.com/category/voip/freepbx.md)**: 3.2/5. The free, open-source PBX on Asterisk: total control and zero licence cost, in exchange for owning security, patching and every integration yourself. 9. **9. [Yeastar P-Series](https://saaskly.com/category/voip/yeastar-p-series.md)**: 3.0/5. SMB PBX sold as appliance, software or cloud edition through channel partners: solid and well-supported in the UK, but an infrastructure product rather than a cloud-native platform. 10. **10. [Aircall](https://saaskly.com/category/voip/aircall.md)**: 2.8/5. CRM-first cloud call centre with excellent integrations and a headline price that bears little relation to what you actually pay once minimums, annual terms and add-ons stack up. 11. **11. [RingCentral RingEX](https://saaskly.com/category/voip/ringcentral.md)**: 2.6/5. The most feature-laden UCaaS on the market, and the one most UK buyers will pay too much for, on US-centric bundles with the worst contract reputation in this comparison. 12. **12. [Mitel MiVoice Business](https://saaskly.com/category/voip/mitel.md)**: 2.3/5. Enterprise hybrid PBX from a vendor that went through Chapter 11 in 2025 and shut its own cloud service in 2026: the legacy option, for estates that already own it. ## Comparison table | Provider | Rating | Month-to-month (entry plan) | Annual commit, per month | Monthly premium | Minimum commitment* | Min seats | Deployment | Sales model | Public API | MCP server | Emergency 911/999/112 | Trustpilot (reviews) | | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | | [VoIPstudio](https://saaskly.com/category/voip/voipstudio.md) | 4.5/5 | $6/mo | Same price | 0% | $6 | 1 | Cloud PBX | Direct | Yes | Yes | Yes | 4.6 (1,673) | | [Microsoft Teams Phone](https://saaskly.com/category/voip/microsoft-teams-phone.md) | 3.9/5 | £9.24/mo | £7.70/mo | 20% | £92.40 | 1 | Cloud PBX | Direct | Yes | No | Yes | — | | [Ringover](https://saaskly.com/category/voip/ringover.md) | 3.8/5 | £24/mo | £15/mo | 41% | £180 | 1 | Cloud PBX | Direct | Yes | No | No | 4.0 (1,075) | | [Vonage Business Communications](https://saaskly.com/category/voip/vonage-business-communications.md) | 3.7/5 | Not published | £10/mo | — | £120 | 1 | Cloud PBX | Direct | No | No | Yes | 4.6 (3,238) | | [Zoom Phone](https://saaskly.com/category/voip/zoom-phone.md) | 3.6/5 | £8/mo | Same price | 0% | £8 | 1 | Cloud PBX | Direct | Yes | No | Yes | 1.3 (1,543) | | [8x8 X Series](https://saaskly.com/category/voip/8x8.md) | 3.4/5 | Not published | £22/mo | — | £264 | — | Cloud PBX | Direct | Yes | No | Yes | 2.8 (624) | | [3CX](https://saaskly.com/category/voip/3cx.md) | 3.3/5 | Annual only | £330/yr | — | £330 | 4 | Hybrid | Partner only | Yes | No | Yes | 2.5 (175) | | [FreePBX / Asterisk](https://saaskly.com/category/voip/freepbx.md) | 3.2/5 | Free | Free | — | Free | 1 | On-prem PBX | Direct | Yes | No | No | — | | [Yeastar P-Series](https://saaskly.com/category/voip/yeastar-p-series.md) | 3.0/5 | Annual only | $399/yr | — | $399 | 1 | Hybrid | Partner only | Yes | No | Yes | — | | [Aircall](https://saaskly.com/category/voip/aircall.md) | 2.8/5 | $40/mo | $30/mo | 33% | $1,080 | 3 | Cloud PBX | Direct | Yes | No | No | 2.9 (1,077) | | [RingCentral RingEX](https://saaskly.com/category/voip/ringcentral.md) | 2.6/5 | $30/mo | $20/mo | 50% | $240 | 1 | Cloud PBX | Direct | Yes | No | Yes | 1.8 (1,965) | | [Mitel MiVoice Business](https://saaskly.com/category/voip/mitel.md) | 2.3/5 | Quote | Quote | — | — | 5 | Hybrid | Partner only | No | No | Yes | — | *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. ## Articles - [Best Business VoIP and Phone Systems in 2026 (UK & EU): VoIPstudio Leads a Market Where the Headline Price Is Rarely the Real One](https://saaskly.com/comparisons/best-business-voip-phone-systems-2026.md): Comparison. We compared 12 business phone platforms (hosted UCaaS and self-hosted PBX) on UK/EU pricing, contract terms, API depth and Trustpilot reputation, with hands-on notes from running six of them in production. --- Researched and drafted with AI assistance; reviewed and approved by Tim Meredith. See https://saaskly.com/ai-transparency.md and https://saaskly.com/editorial-policy.md. Canonical HTML: https://saaskly.com/category/voip · Markdown index: https://saaskly.com/llms.txt