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Best OnSIP Alternatives in 2026

12 apps from business phone systems ranked against OnSIP on the same published basis.

  1. 1
    Microsoft Teams Free plan AndroidiOSLinuxMacWeb $0.33/mo9.7
    OnSIP vs Microsoft Teams
  2. 2
    3CX Free plan WebWinLinuxiOSAndroid $25/mo9.4
    OnSIP vs 3CX
  3. 3
    Freshcaller Free plan AndroidiOSWeb $15/mo9.1
    OnSIP vs Freshcaller
  4. 4
    FreePBX WebLinuxiOSAndroid 9.0
    OnSIP vs FreePBX
  5. 5
    RingCentral RingEX AndroidiOS 8.9
    OnSIP vs RingCentral RingEX
  6. 6
    Zadarma Free plan WebWinMaciOSAndroid $44/mo8.9
    OnSIP vs Zadarma
  7. 7
    Nextiva AndroidextensioniOSLinuxMac $15/mo8.8
    OnSIP vs Nextiva
  8. 8
    VitalPBX Free plan WebWinMacLinuxiOS $100/mo8.8
    OnSIP vs VitalPBX
  9. 10
    CallHippo Free plan AndroidextensioniOSMacWeb $18/mo8.8
    OnSIP vs CallHippo
  10. 11
    PBXware WebWinMaciOSAndroid 8.7
    OnSIP vs PBXware
  11. 12
    NFON Cloudya WebWinMaciOSAndroid €6.80/mo8.6
    OnSIP vs NFON Cloudya
  12. 13
    Wildix WebWinMacLinuxiOS 8.6
    OnSIP vs Wildix
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