Best Business Phone Systems in 2026
Updated
In short: Microsoft Teams is ranked #1 of 174 as of 4 October 2026, ahead of 3CX and Zadarma. The best-ranked option with a free plan is 3CX. The lowest first paid tier on this page is Microsoft Teams at $0.33/mo.
A business phone system can help a team manage calls across business numbers, devices, and users. Compare call routing and auto attendant options with voicemail transcription to understand the listed call-handling features. Desktop and mobile apps, included users, free-plan availability, and paid-from prices add practical details to weigh for your team. Microsoft Teams, 3CX, and Zadarma are among the options shown, alongside VitalPBX and PortSIP PBX. Consider how calls need to reach people, which apps they use, and how many users need access when comparing the stated features and costs.
174 business phone systems ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
13 of the 25 here have a free tier you can use, 0 have open-source code on record, and 0 have full bars: free, open, on most of your devices and documented.
| # | App | Signal | Free tier | Open code | Devices | From | Score |
|---|---|---|---|---|---|---|---|
| 1 | Microsoft TeamsWeb · Windows · Mac · Linux · Android · iPhone | Three bars | — | 6 of 6 | $0.33/mo | 8.3 | |
| 2 | 3CXWeb · Windows · Mac · Linux · Android · iPhone | Three bars | — | 6 of 6 | $25/mo | 8.2 | |
| 3 | ZadarmaWeb · Windows · Mac · Android · iPhone | Three bars | — | 5 of 6 | $44/mo | 7.7 | |
| 4 | VitalPBXWeb · Windows · Mac · Linux · Android · iPhone | Three bars | — | 6 of 6 | $100/mo | 7.7 | |
| 5 | PortSIP PBXNo platforms listed | Two bars | — | 0 of 6 | Free | 7.6 | |
| 6 | FreshcallerWeb · Android · iPhone | Three bars | — | 3 of 6 | $15/mo | 7.6 | |
| 7 | OnSIPWeb · Windows · Mac · Android · iPhone | Three bars | — | 5 of 6 | $18.95/mo | 7.6 | |
| 8 | CallHippoWeb · Windows · Mac · Android · iPhone · Extension | Three bars | — | 5 of 6 | $18/mo | 7.5 | |
| 9 | VoxbiWeb · Windows · Mac · Android · iPhone | Three bars | — | 5 of 6 | €1.20/mo | 7.2 | |
| 10 | Vodia PBXWeb · Windows · Mac · Linux · Android · iPhone | Two bars | — | — | 6 of 6 | — | 7.1 |
| 11 | PBXwareWeb · Windows · Mac · Linux · Android · iPhone | Two bars | — | — | 6 of 6 | — | 7.1 |
| 12 | NextivaWeb · Windows · Mac · Linux · Android · iPhone · Extension | Two bars | — | — | 6 of 6 | $15/mo | 6.9 |
| 13 | WildixWeb · Windows · Mac · Linux · Android · iPhone | Two bars | — | — | 6 of 6 | — | 6.8 |
| 14 | NFON CloudyaWeb · Windows · Mac · Android · iPhone | Two bars | — | — | 5 of 6 | €6.80/mo | 6.7 |
| 15 | sipgateWeb · Windows · Mac · Linux · Android · iPhone | Two bars | — | — | 6 of 6 | £12.95/mo | 6.7 |
| 16 | XelionWeb · Windows · Mac · Android · iPhone | One bar | — | — | 5 of 6 | — | 6.7 |
| 17 | FreePBXWeb · Linux · Android · iPhone | Two bars | — | — | 4 of 6 | — | 6.7 |
| 18 | SonetelWeb · Windows · Mac · Linux · Android · iPhone · API | Three bars | — | 6 of 6 | $9.95/mo | 6.7 | |
| 19 | VoIP Business EnterpriseWeb · Android · iPhone | Three bars | — | 3 of 6 | Free | 6.7 | |
| 20 | Google DriveWindows · Mac · Android · iPhone | Three bars | — | 4 of 6 | $1.99/mo | 6.7 | |
| 21 | RingCentral RingEXAndroid · iPhone | One bar | — | — | 2 of 6 | — | 6.6 |
| 22 | Yeastar P-Series Cloud EditionWeb · Windows · Mac · Android · iPhone | Two bars | — | — | 5 of 6 | — | 6.6 |
| 23 | RingoverWeb · Windows · Mac · Linux · Android · iPhone | Two bars | — | — | 6 of 6 | $15/mo | 6.6 |
| 24 | QuoWeb · Windows · Mac · Android · iPhone | Two bars | — | — | 5 of 6 | $19/mo | 6.6 |
| 25 | Anveo Integrated Voice 2.0No platforms listed | Two bars | — | 0 of 6 | $6.55/mo | 6.6 |
Is your app on this list?
Numbered spots on this list can be sponsored. They are labelled, and the editorial order and scores never change for payment.
Questions about this list
Which business phone system is ranked first on Freedom251?
Microsoft Teams is ranked #1 of 174 with a score of 8.3. 3CX is second and Zadarma third.
How many of these have a free plan?
13 of the 25 on this page publish a free plan on their own pricing pages.
Which is the cheapest paid option?
On this page, Microsoft Teams has the lowest first paid tier we found: $0.33/mo.
How is this list ranked?
Ranked free-and-open first: a usable free tier and open-source code, then the platforms it runs on and its documentation. Paid placements never change a rank.