Best Onebox Alternatives in 2026
Updated
20 platforms from business phone systems ranked against Onebox on the same published basis.
- 1Onebox vs Yeastar P-Series Cloud Edition
- 2Onebox vs Placetel
- 3Onebox vs Sonetel
- 4Onebox vs Anveo Integrated Voice 2.0
- 5Onebox vs Dollu CCaaS
- 6Onebox vs Sangoma PBXact
- 7Onebox vs Microsoft Teams
- 8Onebox vs PortaSwitch
- 9Onebox vs MyOperator
- 10Onebox vs 3CX
- 11Onebox vs XiVO
- 12Onebox vs Wazo Platform
- 13Onebox vs PortSIP PBX
- 14Onebox vs Freshcaller
- 15Onebox vs RingCentral RingEX
- 16Onebox vs Ring.io
- 17Onebox vs Nextiva
- 18Onebox vs Zadarma
- 19Onebox vs OnSIP
- 20Onebox vs JustCall Sales Dialer
Onebox alternatives compared
| # | Platform | Score | Free plan | From | Runs on |
|---|---|---|---|---|---|
| 1 | Yeastar P-Series Cloud Edition | 8.2 | Android, API, Browser, iOS, Mac, Web, Windows | ||
| 2 | Placetel | 8.0 | No | €690/mo | Android, API, iOS, Mac, Web, Windows |
| 3 | Sonetel | 7.8 | Free plan | $9.95/mo | Android, API, iOS, Linux, Mac, Web, Windows |
| 4 | Anveo Integrated Voice 2.0 | 7.8 | Free plan | $0.55/mo | API, Web |
| 5 | Dollu CCaaS | 7.7 | API, Web | ||
| 6 | Sangoma PBXact | 7.6 | No | $1.66/mo | Android, API, iOS, Mac, self-hosted, Web, Windows |
| 7 | Microsoft Teams | 7.5 | Free plan | $0.33/mo | Android, iOS, Linux, Mac, Web, Windows |
| 8 | PortaSwitch | 7.5 | API, self-hosted, Web | ||
| 9 | MyOperator | 7.5 | No | ₹5,000/mo | Android, API, iOS, Web |
| 10 | 3CX | 7.3 | Free plan | $25/mo | Web, Windows, Linux, iOS, Android, Mac |
| 11 | XiVO | 7.3 | Android, API, Browser, iOS, Linux, Mac, self-hosted, Web, Windows | ||
| 12 | Wazo Platform | 7.2 | Free plan | Free | Android, API, iOS, Linux, self-hosted, Web |
| 13 | PortSIP PBX | 7.1 | Free plan | Free | Android, API, iOS, Linux, self-hosted, Web, Windows |
| 14 | Freshcaller | 7.0 | Free plan | $15/mo | Android, iOS, Web |
| 15 | RingCentral RingEX | 6.9 | No | Android, iOS | |
| 16 | Ring.io | 6.9 | Free plan | $90/mo | Android, API, Browser, iOS, Mac, Web, Windows |
| 17 | Nextiva | 6.8 | No | $15/mo | Android, Browser, iOS, Linux, Mac, Web, Windows |
| 18 | Zadarma | 6.8 | Free plan | $44/mo | Web, Windows, Mac, iOS, Android |
| 19 | OnSIP | 6.8 | Free plan | $18.95/mo | Android, iOS, Mac, Web, Windows |
| 20 | JustCall Sales Dialer | 6.8 | No | $29/mo | Android, API, Browser, iOS, Mac, Web, Windows |
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Questions about Onebox alternatives
What is the best alternative to Onebox?
Yeastar P-Series Cloud Edition, number 1 in business phone systems with a score of 8.2 out of 10. The others here: Placetel, Sonetel, Anveo Integrated Voice 2.0 and 16 more.
What is the best free alternative to Onebox?
Sonetel is the best-ranked alternative with a free plan. 10 of the 20 alternatives here publish a free plan on their own pricing pages.
How are these alternatives ranked?
Ranked on what each maker publishes, open and connectable first: a public API, open-source code, the depth of its documentation and a free tier to try it on. Model lists are sorted by the figure in their title, exactly as each provider publishes it.