Best Issabel Alternatives in 2026
Updated
20 platforms from business phone systems ranked against Issabel on the same published basis.
- 1Issabel vs Sonetel
- 2Issabel vs Dollu CCaaS
- 3Issabel vs Sangoma PBXact
- 4Issabel vs Microsoft Teams
- 5Issabel vs PortaSwitch
- 6Issabel vs MyOperator
- 7Issabel vs 3CX
- 8Issabel vs PortSIP PBX
- 9Issabel vs Freshcaller
- 10Issabel vs RingCentral RingEX
- 11Issabel vs Ring.io
- 12Issabel vs Nextiva
- 13Issabel vs Zadarma
- 14Issabel vs OnSIP
- 15Issabel vs JustCall Sales Dialer
- 16Issabel vs Zoom Phone
- 17Issabel vs Dialpad Connect
- 18Issabel vs Vodia PBX
- 19Issabel vs PBXware
- 20Issabel vs VitalPBX
Issabel alternatives compared
| # | Platform | Score | Free plan | From | Runs on |
|---|---|---|---|---|---|
| 1 | Sonetel | 7.8 | Free plan | $9.95/mo | Android, API, iOS, Linux, Mac, Web, Windows |
| 2 | Dollu CCaaS | 7.7 | No | — | API, Web |
| 3 | Sangoma PBXact | 7.6 | No | $1.66/mo | Android, API, iOS, Mac, self-hosted, Web, Windows |
| 4 | Microsoft Teams | 7.5 | Free plan | $0.33/mo | Android, iOS, Linux, Mac, Web, Windows |
| 5 | PortaSwitch | 7.5 | No | — | API, self-hosted, Web |
| 6 | MyOperator | 7.5 | No | ₹5,000/mo | Android, API, iOS, Web |
| 7 | 3CX | 7.3 | Free plan | $25/mo | Web, Windows, Linux, iOS, Android, Mac |
| 8 | PortSIP PBX | 7.1 | Free plan | Free | — |
| 9 | Freshcaller | 7.0 | Free plan | $15/mo | Android, iOS, Web |
| 10 | RingCentral RingEX | 6.9 | No | — | Android, iOS |
| 11 | Ring.io | 6.9 | Free plan | $90/mo | Android, API, Browser, iOS, Mac, Web, Windows |
| 12 | Nextiva | 6.8 | No | $15/mo | Android, Browser, iOS, Linux, Mac, Web, Windows |
| 13 | Zadarma | 6.8 | Free plan | $44/mo | Web, Windows, Mac, iOS, Android |
| 14 | OnSIP | 6.8 | Free plan | $18.95/mo | Android, iOS, Mac, Web, Windows |
| 15 | JustCall Sales Dialer | 6.8 | No | $29/mo | Android, API, Browser, iOS, Mac, Web, Windows |
| 16 | Zoom Phone | 6.7 | No | $10/mo | — |
| 17 | Dialpad Connect | 6.7 | No | — | — |
| 18 | Vodia PBX | 6.7 | No | — | Web, Windows, Mac, Linux, iOS, Android |
| 19 | PBXware | 6.7 | No | — | Web, Windows, Mac, iOS, Android, Linux |
| 20 | VitalPBX | 6.7 | Free plan | $100/mo | Web, Windows, Mac, Linux, iOS, Android |
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Questions about Issabel alternatives
What is the best alternative to Issabel?
Sonetel, number 1 in business phone systems with a score of 7.8 out of 10. The others here: Dollu CCaaS, Sangoma PBXact, Microsoft Teams and 16 more.
What is the best free alternative to Issabel?
Sonetel is the best-ranked alternative with a free plan. 9 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.