Incredible PBX

7.5easy start · #64of 174
in Business Phone Systems

Free to practise onyes
Well documentedyes
Runs where you workyes

Runs on Linux, Mac, self-hosted, Web, Windows.

Incredible PBX is ranked #64 of 174 in business phone systems on The Geeks Club. It runs on Linux, macOS, Self-hosted, Web, Windows. There is a free plan.

Incredible PBX plans and pricing

All plans

Incredible PBX Free Free/Libre Open Source Software; component licenses include AGPL, GPLv2, or GPLv3 wiki.incrediblepbx.com · 12 Oct 2026

Compared on business phone systems

Free plan: Yes
Business numbers: multiple
Auto attendant: Yes
Call routing: custom
Voicemail transcription: Yes

Best Incredible PBX alternatives

See all 20

Microsoft Teams Lesson 19.1 VitalPBX Lesson 29.0 Talkroute Lesson 38.9 3CX Lesson 48.8 Vodia PBX Lesson 58.8 Freshcaller Lesson 68.8

The record

Product: Incredible PBX is an open-source GPL aggregation for a production-ready unified communications VoIP platform supporting SIP and IAX.
Included software: The platform bundles Asterisk and FreePBX with web, database, mail, fax, VPN, and firewall components.
Asterisk customization: The maker says Incredible PBX allows users to customize and recompile Asterisk from source with their choice of Asterisk versions.
Deployment: The maker lists on-premise hardware, cloud platforms, and virtual machines as deployment options.
Current product images: The Products page lists images for Debian, Raspberry Pi, VirtualBox, Proxmox, Linux containers, Mac UTM, VMware, Windows 11 WSL, and cloud providers.
Open-source licensing: The FAQ says the software is free/libre open source and that most components use AGPL, GPLv2, or GPLv3 licenses.
Try before deployment: The maker says tutorials and turnkey images for VirtualBox and VMware can be used to try Incredible PBX without dedicating a server.
Security components: The Home page lists IPtables firewall, Fail2Ban, and PortKnocker among the included components.
Security updates: A public-server security guide says the Automatic Update Utility runs when a root user logs in over SSH and advises users not to disable it.
Threat blocking: The public-server guide says its IPtables and ipset setup blocks selected countries and uses a VoIP blacklist that is updated nightly.
Integrations: The maker provides a guide for setting up Microsoft Teams users as extensions to Incredible PBX.
Messaging: The maker documents SMS and MMS integration through Clearly IP SIP trunks, with inbound messages delivered to FreePBX's User Control Panel.
Community support: The FAQ directs users to the VoIP-Info.org forum for community participation and further help.
Maker: The Home page identifies Ward Mundy & Associates LLC as the owner of the Incredible PBX registered trademark.
Price from: Free

Where it ranks on The Geeks Club

Best Business Phone Systems in 2026#64 of 174

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Sources

wiki.incrediblepbx.com/HomePage· checked 12 Oct 2026
wiki.incrediblepbx.com/Products· checked 12 Oct 2026
wiki.incrediblepbx.com/Mission· checked 12 Oct 2026
wiki.incrediblepbx.com/dl19· checked 12 Oct 2026
incrediblepbx.com/teams/· checked 12 Oct 2026
wiki.incrediblepbx.com/article16-SMS-MMS-Integration-with-Incr· checked 12 Oct 2026
wiki.incrediblepbx.com/Services· checked 12 Oct 2026
wiki.incrediblepbx.com/Setting-and-Resetting-Passwords· checked 12 Oct 2026