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Best Avaya Cloud Office Alternatives in 2026

Updated

20 apps from business phone systems ranked against Avaya Cloud Office on the same published basis.

  1. 1
    Microsoft Teams Free plan AndroidiOSLinuxMacWeb $0.33/mo8.3
    Avaya Cloud Office vs Microsoft Teams
  2. 2
    3CX Free plan WebWinLinuxiOSAndroid $25/mo8.2
    Avaya Cloud Office vs 3CX
  3. 3
    PortSIP PBX Free plan AndroidapiiOSLinuxself-hosted Free8.0
    Avaya Cloud Office vs PortSIP PBX
  4. 4
    Zadarma Free plan WebWinMaciOSAndroid $44/mo7.7
    Avaya Cloud Office vs Zadarma
  5. 5
    VitalPBX Free plan AndroidapiextensioniOSLinux $100/mo7.7
    Avaya Cloud Office vs VitalPBX
  6. 6
    Freshcaller Free plan AndroidiOSWeb $15/mo7.6
    Avaya Cloud Office vs Freshcaller
  7. 7
    Talkroute Free trial AndroidiOSLinuxMacWeb 7.6
    Avaya Cloud Office vs Talkroute
  8. 8
    OnSIP Free plan AndroidiOSMacWebWin $18.95/mo7.5
    Avaya Cloud Office vs OnSIP
  9. 9
    CallHippo Free plan AndroidextensioniOSMacWeb $18/mo7.5
    Avaya Cloud Office vs CallHippo
  10. 10
    Zoho Voice Free plan AndroidapiextensioniOSLinux 7.4
    Avaya Cloud Office vs Zoho Voice
  11. 11
    Voxbi Free plan AndroidapiiOSMacWeb €1.20/mo7.3
    Avaya Cloud Office vs Voxbi
  12. 12
    Vodia PBX Free trial AndroidapiiOSLinuxMac 7.2
    Avaya Cloud Office vs Vodia PBX
  13. 13
    PBXware AndroidapiextensioniOSLinux 7.2
    Avaya Cloud Office vs PBXware
  14. 14
    Voxcloud Free plan AndroidiOSWin $2/mo7.2
    Avaya Cloud Office vs Voxcloud
  15. 15
    Sonetel Free plan AndroidapiiOSLinuxMac $9.95/mo7.2
    Avaya Cloud Office vs Sonetel
  16. 16
    Xorcom CompletePBX Free plan AndroidiOSLinuxself-hostedWeb Free7.1
    Avaya Cloud Office vs Xorcom CompletePBX
  17. 17
    sipXcom Free plan apiLinuxself-hosted Free7.0
    Avaya Cloud Office vs sipXcom
  18. 18
    Brekeke PBX Free trial apiLinuxself-hostedWebWin 7.0
    Avaya Cloud Office vs Brekeke PBX
  19. 19
    Zoom Phone Free trial AndroidiOSLinuxMacWin $1.33/mo6.9
    Avaya Cloud Office vs Zoom Phone
  20. 20
    Nextiva AndroidextensioniOSLinuxMac $15/mo6.9
    Avaya Cloud Office vs Nextiva

Avaya Cloud Office 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
4Zadarma7.7Free plan$44/moWeb, Windows, Mac, iOS, Android
5VitalPBX7.7Free plan$100/moAndroid, API, Browser, iOS, Linux, Mac, self-hosted, Web, Windows
6Freshcaller7.6Free plan$15/moAndroid, iOS, Web
7Talkroute7.6Android, iOS, Linux, Mac, Web, Windows
8OnSIP7.5Free plan$18.95/moAndroid, iOS, Mac, Web, Windows
9CallHippo7.5Free plan$18/moAndroid, Browser, iOS, 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
18Brekeke PBX7.0API, Linux, self-hosted, Web, Windows
19Zoom Phone6.9No$1.33/moAndroid, iOS, Linux, Mac, Windows
20Nextiva6.9No$15/moAndroid, Browser, iOS, Linux, Mac, Web, Windows
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Questions about Avaya Cloud Office alternatives

What is the best alternative to Avaya Cloud Office?

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

What is the best free alternative to Avaya Cloud Office?

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.