The Best IP PBX Software in 2026
We researched IP PBX software using official vendor websites, including pricing pages, plan tables, and product documentation. Our rankings focus on each system’s core job, value for money, and verified features for deploying and managing VoIP calling. Compare self-hosted and installable options for your organization’s needs.
Our top picks
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Top ranked
3CX#1 of 209.2/10A flexible IP PBX with a free entry tier and advanced call-flow tools.
Free plan
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Runner-up
Avaya IP Office#2 of 209.0/10A hybrid on-prem PBX with broad calling and collaboration features for Avaya-oriented organizations.
Pricing on request
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Top-ranked free plan
4PSA VoipNow#8 of 207.9/10A multitenant PBX for providers that need routing, SIP trunking and cloud or self-hosted deployment.
Free plan · 30-day trial
Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.
The full ranking 20 tools, best first
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Best forTeams seeking a flexible PBX with a free tier
A flexible IP PBX with a free entry tier and advanced call-flow tools.
9.2/10★★★★★Visit 3CX -
Best forOrganizations standardizing on an established on-prem PBX
A hybrid on-prem PBX with broad calling and collaboration features for Avaya-oriented organizations.
- Call recording
9.0/10★★★★☆Visit Avaya -
Best forOrganizations needing flexible Mitel deployment options
A flexible IP PBX with cloud, on-premises and hybrid options, plus collaboration tools.
8.9/10★★★★☆Visit Mitel -
Best forTeams seeking integrated PBX and contact-center tools
A multi-tier PBX and collaboration suite with contact-center tools and sales-led pricing.
8.8/10★★★★☆Visit Wildix -
Best forBusinesses seeking a capable PBX and long trial
A feature-rich IP PBX with advanced routing, multiple deployment options, and a 60-day trial.
Pricing on request · 60-day trial Our Vodia PBX verdict → Visit VodiaFor vendors Sponsor this spot · #5 · $59/mo →8.7/10★★★★☆Visit Vodia -
Best forMSPs and providers running multi-tenant UC
A multi-tenant PBX and UC platform with cloud, self-hosted, and white-label options.
8.6/10★★★★☆Visit Thirdlane -
Best forTeams seeking cloud PBX with AI call handling
A cloud business phone system combining IVR, queues, AI transcription, and integrations.
8.5/10★★★★☆Visit Yeastar -
Best forService providers needing a multitenant PBX
A multitenant PBX for providers that need routing, SIP trunking and cloud or self-hosted deployment.
7.9/10★★★★☆Visit 4PSA -
Best forTeams building and managing their own PBX
A flexible open-source PBX with advanced routing and optional commercial modules.
7.8/10★★★★☆Visit FreePBX -
Best forTeams building a self-hosted, open-source PBX
A self-hosted, open-source PBX with multitenancy, routing, queues, and voicemail tools.
7.7/10★★★★☆Visit FusionPBX -
Best forSmall teams wanting a free PBX with broad routing tools
A free three-extension PBX with broad routing, contact-center tools, and integrations.
7.6/10★★★★☆Visit PortSIP -
Best forTeams wanting a free PBX entry with paid upgrades
A feature-rich PBX with a free Community edition and paid enterprise, call-center, and multi-tenant licenses.
7.5/10★★★★☆Visit VitalPBX -
Best forBusinesses needing multitenancy and contact-center options
A multi-tenant PBX with UC and contact-center options across hosted and self-hosted deployments.
7.4/10★★★★☆Visit PBXware -
Best forSmall deployments built around Asterisk and FreePBX
A configurable PBX for teams prepared to run and customize their own phone system.
7.3/10★★★★☆Visit Incredible PBX -
Best forSmall teams wanting an open-source Asterisk-based PBX
A self-hosted Asterisk-based PBX with call routing, IVR, queues, and an API.
7.2/10★★★★☆Visit MikoPBX -
Best forDevelopers building on an open-source PBX platform
A self-hosted, API-first PBX platform for teams building custom communications services.
7.1/10★★★★☆Visit Wazo Platform -
Best forTeams comfortable operating a free, self-hosted SIP PBX
A free, self-hosted SIP PBX with broad call-control and redundancy features.
- Web management
- High availability
7.0/10★★★★☆Visit sipXcom -
Best forDevelopers building programmable telephony services
A programmable telephony platform for teams building voice, video, and SMS services.
- Call recording
6.9/10★★★☆☆Visit 2600Hz -
Best forOrganizations prioritizing redundancy and virtual appliances
A flexible IP PBX for organizations that need call handling and redundant virtual deployments.
- Web management
- High availability
- Call recording
6.8/10★★★☆☆Visit innovaphone -
Best forTelecom teams implementing specialized call routing
A self-hosted, open-source telephony engine for carrier and mobile-network call handling.
6.2/10★★★☆☆Visit Yate
No tools match those filters.
Compare at a glance
| # | Tool | Free plan | Paid from | Score |
|---|---|---|---|---|
| 1 | 3CX | Yes | $300/yr | 9.2 |
| 2 | Avaya IP Office | 9.0 | ||
| 3 | Mitel MiVoice Business | 8.9 | ||
| 4 | Wildix | No | 8.8 | |
| 5 | Vodia PBX | 8.7 | ||
| 6 | Thirdlane Business Communications Platform | No | 8.6 | |
| 7 | Yeastar P-Series Cloud Edition | No | 8.5 | |
| 8 | 4PSA VoipNow | Yes | 7.9 | |
| 9 | FreePBX | Yes | 7.8 | |
| 10 | FusionPBX | Yes | Free | 7.7 |
| 11 | PortSIP PBX | Yes | 7.6 | |
| 12 | VitalPBX | Yes | $1,000/yr | 7.5 |
| 13 | PBXware | 7.4 | ||
| 14 | Incredible PBX | Yes | Free | 7.3 |
| 15 | MikoPBX | Yes | Free | 7.2 |
| 16 | Wazo Platform | Free | 7.1 | |
| 17 | sipXcom | Yes | Free | 7.0 |
| 18 | Kazoo | No | 6.9 | |
| 19 | innovaphone PBX | No | 6.8 | |
| 20 | Yate | Free | 6.2 |
Head-to-head All 27 comparisons →
- 3CX vs Avaya IP Office
- 3CX vs Mitel MiVoice Business
- 3CX vs Wildix
- 3CX vs Vodia PBX
- 3CX vs Thirdlane Business Communications Platform
- 3CX vs 4PSA VoipNow
- Avaya IP Office vs Mitel MiVoice Business
- Avaya IP Office vs Wildix
- Avaya IP Office vs Vodia PBX
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How we rank IP PBX software
Every tool on this page was researched by iTechGuides Editors from its official website — pricing pages, plan tables and product documentation. We rank on how well each one does this category's core job, what the free or entry plan includes, and where it falls short. Where we have enough verified facts, the score out of 10 is a rubric — job fit, value and how much we could verify — shown with its breakdown on every tool's page; a tool we have not verified enough to score yet shows its rank without a number. Scores are re-checked when a product changes its plans. Read the full editorial policy, or submit a tool we missed.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Last updated · How we research and update