Best VoIP & Business Phone Systems
14 providers compared · reviewed September 2026 · how we rank
A business phone system — also called a VoIP service or VoIP provider — routes your business calls over the internet, so a team can share numbers, run call queues and work from anywhere without a PBX in a cupboard. The right pick depends on your team size, the features you actually need and your budget, not on a headline star rating.
Below, every provider is compared on the same sourced data: entry pricing, confirmed capabilities and a user rating that is the review-weighted average of public user reviews. Rankings are set by fit with your needs, and every price and capability is dated.
Why you can trust this list
Reviewed by the Siftpick team · data verified September 2026
- Sourced and dated
- Every price and feature comes from the vendor's own pages, with the date we last checked it.
- Real user ratings
- Each score is the review-weighted average of public user reviews, not our opinion.
- Ranked by fit
- The order reflects how well each option matches the needs you tell us.
At a glance
| Provider | Rating | From | Features |
|---|---|---|---|
| OpenPhone | 4.7(2,800) | From $15/mo | 17 |
| Zoom Phone | 4.6(2,800) | From $16/mo | 12 |
| Nextiva | 4.5(4,400) | From $15/mo | 16 |
| Ooma Office | 4.5(380) | From $19.95/mo | 15 |
| Dialpad | 4.4(4,700) | From $15/mo | 18 |
| GoTo Connect | 4.4(2,100) | Custom pricing | 18 |
| Google Voice | 4.4(880) | From $10/mo | 14 |
| 3CX | 4.4(1,000) | From $14.5/mo (free plan) | 12 |
| RingCentral | 4.2(2,500) | From $20/mo | 18 |
| 8x8 | 4.2(1,100) | Custom pricing | 17 |
| Vonage Business | 4.2(820) | From $19.99/mo | 13 |
| Grasshopper | 4.1(400) | From $14/mo | 12 |
| Phone.com | 3.6(100) | From $18/mo | 17 |
| Microsoft Teams Phone | Not rated | From $10/mo | 20 |
Best business phone systems for…
Standouts on a single, verifiable measure. Every claim below is a fact from the data, not an opinion.
All 14 compared
- 01OpenPhoneEditor's pick
A modern, shared-number phone for startups and small teams (rebranded Quo in 2026). Fast to set up, tidy apps, AI call notes.
- 02
The natural add-on if your team already lives in Zoom. Clean apps and competitive per-user pricing.
- 03
A service-SMB favourite known for reliability and strong US support. Simple to run without an IT team.
- 04
Built for very small businesses that want a phone system running in minutes, with no IT required.
- 05
AI-native business phone with live transcription and call insights. Modern feel, strong for sales teams.
- 06
Straightforward unified comms with an easy visual dial-plan editor. Good for teams that want simple.
- 07
Google's phone service, sold as a Workspace add-on. Simple and tidy, tightly tied to the Google stack; lighter on features than dedicated VoIP suites.
- 083CXFree plan
A self-hosted or 3CX-hosted phone system priced per system, not per seat. Powerful and cheap at scale, but you bring your own SIP trunk.
- 09
The deep, enterprise-grade unified communications platform (RingEX). Rich features and a huge integration catalogue.
- 10
Global unlimited calling to many countries. A fit for multi-country SMBs and contact-centre needs.
- 11
A flexible platform with a strong API side. The entry Mobile plan is lean; many features sit in Advanced/Premium tiers.
- 12
A virtual phone-number layer for solo owners and tiny teams, priced as a flat rate per account (not per user). Not a full desk-phone system.
- 13
A budget-friendly US/Canada phone service for very small teams. Straightforward plans, with some features gated to higher tiers.
- 14
Turns Microsoft Teams into a business phone. Compelling if you already run Microsoft 365, but it needs a license and a calling plan on top.
Frequently asked
- How much does a business phone system cost?
- Published entry plans in our catalogue range from $10 to $20 per user per month. Some providers only quote on request, and a free tier is available (3CX).
- What is the cheapest business phone system?
- The lowest published entry price is $10/user/mo (Google Voice and Microsoft Teams Phone). 3CX also has a free plan.
- Which business phone system is rated highest?
- By combined public review scores, OpenPhone leads at 4.7/5, followed by Zoom Phone at 4.6/5. Ratings are weighted by review volume and dated.
- How does Siftpick rank business phone systems?
- We rank by fit with your needs: the features you require, your budget and your team size. The user rating is the review-weighted average of public user reviews, dated, not our opinion.