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Best Business Phone Systems in 2026

A business phone system can help a team manage calls across business numbers, devices, and users. Compare call routing and auto attendant options with voicemail transcription to understand the listed call-handling features. Desktop and mobile apps, included users, free-plan availability, and paid-from prices add practical details to weigh for your team. Microsoft Teams, 3CX, and Zadarma are among the options shown, alongside VitalPBX and PortSIP PBX. Consider how calls need to reach people, which apps they use, and how many users need access when comparing the stated features and costs.

  1. 1

    3CX

    by 3CX
    Free plan WebWindowsLinux+3
    7.7 Free plan · paid from $300/yr Visit site
  2. 2

    Microsoft Teams

    by Microsoft Teams
    Free plan AndroidiPhoneLinux+3

    Teams covers messaging, calls, and meetings across platforms, with a free plan and business options that list expanded meeting and support features.

    7.7 Free plan Visit site
  3. 3

    PortSIP PBX

    Free plan AndroidAPIiPhone+4

    Choose PortSIP PBX if you need a broad communications platform with a free edition and multiple deployment options.

    7.6 Free plan Visit site
  4. 4

    FreePBX

    Free plan AndroidiPhoneLinux+2

    FreePBX provides a broad, free foundation for customized IP phone systems across self-hosted and other supported environments.

    7.5 Free plan Visit site
  5. 5

    Zadarma

    by Zadarma
    Free plan WebWindowsMac+2

    Zadarma combines business calling features with web and device apps. Compare the listed plan allowances carefully, since they differ by plan.

    7.5 Free plan · paid from $39/mo (annual) · 7-day trial Visit site
  6. 6

    VitalPBX

    by VitalPBX
    Free plan AndroidAPIExtension+6

    VitalPBX offers a free plan alongside three paid plans, with features including custom call routing and voicemail transcription.

    7.5 Free plan · paid from $100/mo Visit site
  7. 7

    Freshcaller

    Free plan AndroidiPhoneWeb

    Freshcaller brings routing, call controls, and call intelligence into a cloud contact center, with integrations for other Freshworks products.

    7.4 Free plan · paid from $15/user/mo (annual) · 14-day trial Visit site
  8. 8

    OnSIP

    by OnSIP
    Free plan AndroidiPhoneMac+2

    OnSIP offers a free tier alongside paid calling and business phone features. The restriction on regular-number dialing for free SIP accounts is an important distinction when choosing a plan.

    7.4 Free plan · paid from $18.95/user/mo · 30-day trial Visit site
  9. 9

    CallHippo

    Free plan AndroidExtensioniPhone+3

    Choose CallHippo for a business phone system with multiple numbers, routing, voicemail transcription and CRM connections.

    7.4 From $18/user/mo (annual) · 10-day trial Visit site
  10. 10

    MyOperator

    by MyOperator
    Free plan AndroidAPIExtension+2

    Pick MyOperator if your team wants calling, WhatsApp, and AI agents in a shared customer communication platform, with a limited-feature sandbox trial to explore selected workflows.

    7.4 From ₹5,000/mo (annual) Visit site
  11. 11

    4PSA VoipNow

    Free plan APILinuxSelf-hosted+1

    VoipNow covers PBX, contact-center, collaboration, integration, and deployment needs in one platform. The free edition is narrowly limited, while broader capacity and features use paid plans.

    7.3 Free plan · 30-day trial Visit site
  12. 12

    Xorcom CompletePBX

    by Xorcom CompletePBX
    Free plan AndroidiPhoneLinux+2

    Choose CompletePBX if you need a self-hosted PBX with call-center tools, Teams connectivity, and support for both VoIP and legacy interfaces.

    7.3 Pricing on request Visit site
  13. 13

    Zoho Voice

    by Zoho Voice
    Free plan AndroidAPIExtension+5

    Zoho Voice combines business calling with contact center tools, messaging and call summaries across a wide range of platforms.

    7.3 Free plan · paid from $34/user/mo (annual) · 15-day trial Visit site
  14. 14

    Voxbi

    by Voxbi
    Free plan AndroidAPIiPhone+3

    Voxbi offers a free entry plan and paid options with different calling, summary, history, and reporting allowances. Check per-minute charges and plan-specific conditions when choosing an option.

    7.3 Free plan · paid from €1.20/user/mo · 14-day trial Visit site
  15. 15

    Issabel

    by Issabel
    Free plan AndroidAPILinux+2

    Issabel provides a broad open-source communications platform with PBX, contact-center, and integration features.

    7.3 Free plan · paid from $8.33/mo Visit site
  16. 16

    Sonetel

    by Sonetel
    Free plan AndroidAPIiPhone+4

    Sonetel combines virtual numbers with routing, voicemail, and AI call summaries, while offering a free Basic plan and paid options.

    7.3 Free plan · paid from $9.95/user/mo (annual) Visit site
  17. 17

    Voxcloud

    by Voxcloud
    Free plan AndroidiPhoneWindows

    Choose Voxcloud if your business needs hosted phone service, softphones, or a way to connect multiple sites and remote workers.

    7.2 Free plan · paid from £5/mo · 14-day trial Visit site
  18. 18

    sipXcom

    Free plan APILinuxSelf-hosted

    Choose sipXcom if you want open-source PBX and unified communications functions that can be deployed on one server or distributed across a system.

    7.2 Open source Visit site
  19. 19

    FusionPBX

    Free plan APILinuxSelf-hosted+1

    FusionPBX provides a broad, self-hosted communications platform with PBX, call-center, voicemail, and browser-calling functions.

    7.2 Free plan Visit site
  20. 20

    VoIP Business Enterprise

    Free plan AndroidExtensioniPhone+3

    VoIP Business Enterprise combines business telephony, messaging, meetings, and support features across many access options.

    7.2 Free plan Visit site
  21. 21

    Incredible PBX

    Free plan LinuxMacSelf-hosted+2

    Incredible PBX bundles core telephony software with a broad set of deployment images and security components. Note the platform-specific fax exclusion when selecting an image.

    7.2 Free plan Visit site
  22. 22

    MikoPBX

    Free plan APILinuxSelf-hosted+1

    MikoPBX combines a free Asterisk-based PBX with extensive deployment, routing, integration, and API options.

    7.1 Free plan Visit site
  23. 23

    Wazo Platform

    by Wazo Platform
    Free plan AndroidAPIiPhone+3

    Choose Wazo Platform if you need a free, self-hosted and programmable foundation for telecom services.

    7.0 Open source Visit site
  24. 24

    Palephone

    Free plan AndroidAPILinux+3

    Palephone combines calling, collaboration, and governance in a self-hosted package. Teams should account for separate production dependencies and the disabled default SIP registrar path.

    7.0 Free plan Visit site
  25. 25

    Phonebooth

    Free plan AndroidiPhoneMac+2

    Phonebooth combines hosted business calling with voicemail, routing, and team communication features.

    7.0 Free plan · paid from $20/user/mo Visit site

#1Places #1, #2, #3, #4, #5 on this list can be bought by the makers of the software on it. See the price

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