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Best Kall8 VoIP Alternatives in 2026

Updated

20 apps from business phone systems ranked against Kall8 VoIP on the same published basis.

  1. 1
    Microsoft Teams Free plan AndroidiOSLinuxMacWeb $0.33/mo8.3
    Kall8 VoIP vs Microsoft Teams
  2. 2
    3CX Free plan WebWinLinuxiOSAndroid $25/mo8.2
    Kall8 VoIP vs 3CX
  3. 3
    PortSIP PBX Free plan AndroidapiiOSLinuxself-hosted Free8.0
    Kall8 VoIP vs PortSIP PBX
  4. 4
    VitalPBX Free plan AndroidapiextensioniOSLinux $100/mo7.7
    Kall8 VoIP vs VitalPBX
  5. 5
    Freshcaller Free plan AndroidiOSWeb $15/mo7.6
    Kall8 VoIP vs Freshcaller
  6. 6
    Zadarma Free plan WebWinMaciOSAndroid $44/mo7.6
    Kall8 VoIP vs Zadarma
  7. 7
    OnSIP Free plan AndroidiOSMacWebWin $18.95/mo7.5
    Kall8 VoIP vs OnSIP
  8. 8
    CallHippo Free plan AndroidextensioniOSMacWeb $18/mo7.5
    Kall8 VoIP vs CallHippo
  9. 9
    Talkroute Free trial AndroidiOSLinuxMacWeb 7.5
    Kall8 VoIP vs Talkroute
  10. 10
    Zoho Voice Free plan AndroidapiextensioniOSLinux 7.4
    Kall8 VoIP vs Zoho Voice
  11. 11
    Voxbi Free plan AndroidapiiOSMacWeb €1.20/mo7.3
    Kall8 VoIP vs Voxbi
  12. 12
    Vodia PBX Free trial AndroidapiiOSLinuxMac 7.2
    Kall8 VoIP vs Vodia PBX
  13. 13
    PBXware AndroidapiextensioniOSLinux 7.2
    Kall8 VoIP vs PBXware
  14. 14
    Voxcloud Free plan AndroidiOSWin $2/mo7.2
    Kall8 VoIP vs Voxcloud
  15. 15
    Sonetel Free plan AndroidapiiOSLinuxMac $9.95/mo7.2
    Kall8 VoIP vs Sonetel
  16. 16
    Xorcom CompletePBX Free plan AndroidiOSLinuxself-hostedWeb Free7.1
    Kall8 VoIP vs Xorcom CompletePBX
  17. 17
    sipXcom Free plan apiLinuxself-hosted Free7.0
    Kall8 VoIP vs sipXcom
  18. 18
    Nextiva AndroidextensioniOSLinuxMac $15/mo6.9
    Kall8 VoIP vs Nextiva
  19. 19
    Zultys Cloud Services AndroidiOSMacWebWin 6.9
    Kall8 VoIP vs Zultys Cloud Services
  20. 20
    Brekeke PBX Free trial apiLinuxself-hostedWebWin 6.9
    Kall8 VoIP vs Brekeke PBX

Kall8 VoIP alternatives compared

#AppScoreFree planFromRuns on
1Microsoft Teams8.3Free plan$0.33/moAndroid, iOS, Linux, Mac, Web, Windows
23CX8.2Free plan$25/moWeb, Windows, Linux, iOS, Android, Mac
3PortSIP PBX8.0Free planFreeAndroid, API, iOS, Linux, self-hosted, Web, Windows
4VitalPBX7.7Free plan$100/moAndroid, API, Browser, iOS, Linux, Mac, self-hosted, Web, Windows
5Freshcaller7.6Free plan$15/moAndroid, iOS, Web
6Zadarma7.6Free plan$44/moWeb, Windows, Mac, iOS, Android
7OnSIP7.5Free plan$18.95/moAndroid, iOS, Mac, Web, Windows
8CallHippo7.5Free plan$18/moAndroid, Browser, iOS, Mac, Web, Windows
9Talkroute7.5Android, iOS, Linux, Mac, Web, Windows
10Zoho Voice7.4Free planAndroid, API, Browser, iOS, Linux, Mac, Web, Windows
11Voxbi7.3Free plan€1.20/moAndroid, API, iOS, Mac, Web, Windows
12Vodia PBX7.2Android, API, iOS, Linux, Mac, self-hosted, Web, Windows
13PBXware7.2Android, API, Browser, iOS, Linux, Mac, self-hosted, Web, Windows
14Voxcloud7.2Free plan$2/moAndroid, iOS, Windows
15Sonetel7.2Free plan$9.95/moAndroid, API, iOS, Linux, Mac, Web, Windows
16Xorcom CompletePBX7.1Free planFreeAndroid, iOS, Linux, self-hosted, Web
17sipXcom7.0Free planFreeAPI, Linux, self-hosted
18Nextiva6.9No$15/moAndroid, Browser, iOS, Linux, Mac, Web, Windows
19Zultys Cloud Services6.9Android, iOS, Mac, Web, Windows
20Brekeke PBX6.9API, Linux, self-hosted, Web, Windows
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Questions about Kall8 VoIP alternatives

What is the best alternative to Kall8 VoIP?

Microsoft Teams, number 1 in business phone systems with a score of 8.3 out of 10. The others here: 3CX, PortSIP PBX, VitalPBX and 16 more.

What is the best free alternative to Kall8 VoIP?

Microsoft Teams is the best-ranked alternative with a free plan. 14 of the 20 alternatives here publish a free plan on their own pricing pages.

How are these alternatives ranked?

Ranked free-and-open first: a usable free tier and open-source code, then the platforms it runs on and its documentation.