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Incredible PBX
What Incredible PBX is
Incredible PBX is a free, open-source unified communications platform for VoIP systems using SIP and IAX. It bundles Asterisk and FreePBX with web, database, mail, fax, VPN, and firewall components, including Apache, PHP, MariaDB/MySQL, WebMin, OpenVPN, IPtables, Fail2Ban, and PortKnocker. Listed capabilities include multiple business numbers, custom call routing, an auto attendant, and voicemail transcription. The maker lists on-premise hardware, cloud platforms, and virtual machines as deployment options. Available images cover Debian, Raspberry Pi, VirtualBox, Proxmox, Linux containers, Mac UTM, VMware, Windows 11 WSL, and cloud providers. Users can customize and recompile Asterisk from source with their choice of version. Tutorials and turnkey VirtualBox or VMware images let users explore the platform without dedicating a server. The FAQ describes the software as free/libre open source; component licenses include AGPL, GPLv2, or GPLv3. Guides cover Microsoft Teams extensions and SMS/MMS through Clearly IP SIP trunks. The Products page notes that HylaFax/AvantFax is excluded on Rocky 8 and Debian 11.
Who it suits
Incredible PBX may suit organizations and administrators seeking a self-hosted VoIP platform with configurable Asterisk and FreePBX components. It offers deployment paths spanning on-premise hardware, virtual machines, and cloud platforms.
What it does well
- Free/libre open-source software with listed component licenses.
- Supports custom call routing and an auto attendant.
- Offers images for virtual machines, computers, and cloud providers.
- Turnkey VirtualBox and VMware images allow trials without a dedicated server.
What to know first
- HylaFax/AvantFax is excluded on Rocky 8 and Debian 11.
- The FAQ directs users to community forums for further help.
Limits
HylaFax/AvantFax is excluded from Rocky 8 and Debian 11 images. The software itself is free/libre open source, with most components using AGPL, GPLv2, or GPLv3 licenses.
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| Incredible PBX | Free/Libre Open Source Software; component licenses include AGPL, GPLv2, or GPLv3 | Free |
As wiki.incrediblepbx.com lists them, read 12 Oct 2026. The maker's own page has the final word.
Getting started
- Open the Incredible PBX HomePage
- Choose an image for your hardware, virtual machine, container, operating system, or cloud
- Install the selected image on-premise, in a cloud platform, or in a virtual machine
- Use a VirtualBox or VMware turnkey image to try the platform
- Configure SIP or IAX telephony and call-routing settings
- Review the security and password guides
Verdict
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.
Questions
Is Incredible PBX free?
Yes. It is listed as free/libre open-source software, with most components under AGPL, GPLv2, or GPLv3 licenses.
Which platforms can run it?
Listings include Linux, macOS, Windows, web, self-hosted deployments, virtual machines, containers, Raspberry Pi, and cloud providers.
What telephony systems are included?
Asterisk and FreePBX are core components, and the platform supports SIP and IAX.
Can Asterisk be customized?
Yes. Users can customize and recompile Asterisk from source with their chosen version.
Does it integrate with Microsoft Teams or messaging?
Guides cover Microsoft Teams users as extensions and SMS or MMS through Clearly IP SIP trunks.
How can I try it before deployment?
Tutorials and turnkey images for VirtualBox and VMware provide a way to try it without dedicating a server.
Facts from Incredible PBX's own pages
- Asterisk customization
- The maker says Incredible PBX allows users to customize and recompile Asterisk from source with their choice of Asterisk versions. · wiki.incrediblepbx.com, 12 Oct 2026
- Auto attendant
- Yes · wiki.incrediblepbx.com, 22 Sept 2026
- Business numbers
- multiple · wiki.incrediblepbx.com, 22 Sept 2026
- Call routing
- custom · wiki.incrediblepbx.com, 22 Sept 2026
- Community support
- The FAQ directs users to the VoIP-Info.org forum for community participation and further help. · wiki.incrediblepbx.com, 12 Oct 2026
- Core components
- The platform includes Asterisk and FreePBX, with components such as Apache, PHP, MariaDB/MySQL, WebMin, OpenVPN, an IPtables firewall, Fail2Ban, and PortKnocker. · wiki.incrediblepbx.com, 12 Oct 2026
- 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. · wiki.incrediblepbx.com, 12 Oct 2026
- Deployment
- The maker lists on-premise hardware, cloud platforms, and virtual machines as deployment options. · wiki.incrediblepbx.com, 12 Oct 2026
- Free plan
- Yes · wiki.incrediblepbx.com, 22 Sept 2026
- Included software
- The platform bundles Asterisk and FreePBX with web, database, mail, fax, VPN, and firewall components. · wiki.incrediblepbx.com, 12 Oct 2026
- Integrations
- The maker provides a guide for setting up Microsoft Teams users as extensions to Incredible PBX. · incrediblepbx.com, 12 Oct 2026
- Maker
- The Home page identifies Ward Mundy & Associates LLC as the owner of the Incredible PBX registered trademark. · wiki.incrediblepbx.com, 12 Oct 2026
- Messaging
- The maker documents SMS and MMS integration through Clearly IP SIP trunks, with inbound messages delivered to FreePBX's User Control Panel. · wiki.incrediblepbx.com, 12 Oct 2026
- Notable component limit
- The Products page says HylaFax/AvantFax is excluded on Rocky 8 and Debian 11 platforms. · wiki.incrediblepbx.com, 12 Oct 2026
- Open-source licensing
- The FAQ says the software is free/libre open source and that most components use AGPL, GPLv2, or GPLv3 licenses. · wiki.incrediblepbx.com, 12 Oct 2026
- Phone and softphone options
- The Services page recommends SIP phones from ClearlyIP, Fanvil, Grandstream, Yealink, Snom, and Polycom, and softphones including Clearly Anywhere, Acrobits Groundwire, Zoiper5, SessionTalk Pro, and Linphone. · wiki.incrediblepbx.com, 12 Oct 2026
- Product
- Incredible PBX is an open-source GPL aggregation for a production-ready unified communications VoIP platform supporting SIP and IAX. · wiki.incrediblepbx.com, 12 Oct 2026
- Purpose
- Incredible PBX is an open source aggregation that bundles components into a production-ready, turnkey unified communications VoIP platform supporting SIP and IAX. · wiki.incrediblepbx.com, 12 Oct 2026
- Security
- The HomePage lists an IPtables firewall, Fail2Ban, OpenVPN, NeoRouter VPN, and PortKnocker among the bundled components. · wiki.incrediblepbx.com, 12 Oct 2026
- Security components
- The Home page lists IPtables firewall, Fail2Ban, and PortKnocker among the included components. · wiki.incrediblepbx.com, 12 Oct 2026
- Security configuration
- The password guide describes separate Linux CLI and FreePBX GUI passwords, including passwords for FreePBX admin and Apache web apps. · wiki.incrediblepbx.com, 12 Oct 2026
- 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. · wiki.incrediblepbx.com, 12 Oct 2026
- Support and community
- The FAQ directs users to Nerd Vittles tutorials, an Application User’s Guide, and the VoIP-Info.org forum for community participation and further information. · wiki.incrediblepbx.com, 12 Oct 2026
- Telephony providers
- The Services page lists Skyetel and ClearlyIP as mission-critical VoIP provider options and names VoIP.ms, BulkVS, Callcentric, RingCentral, SignalWire, and others as alternatives. · wiki.incrediblepbx.com, 12 Oct 2026
Where Incredible PBX stands on Freedom251
- Business Phone Systems#21 of 174