Open Source PBX

Open Source PBX

An open source PBX (or open source IP-PBX) is a phone system available to the public free-of-charge, under a GNU general public license. It is comprised of a base Linux operating system and the PBX software; which enables a technical user to convert a computer into a business communications system.

The open source PBX is flexible and customizable, and as such administrators and developers should have a strong programming background, knowledgeable in telecommunication skills and be familiar with the fundamentals of VoIP and/or legacy telephony. All the typical PBX features, such as voicemail, IVR, rule-based call routing, automatic call distribution and conference calling are included in the code base.

Sangoma offers a few options for open source PBXs. The options vary based on ease-of-use, compatibility and support.

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Low Cost

All the software is free to download and install, where the only cost is the hardware server. If such expertise is required some open source providers offer paid support to help you create and/or customize your solution.



The operating system and phone system software are not locked down to any proprietary licensing or code, and since the phone system software is IP-based, programmers can integrate applications, such as presence, email, CRM to name a few.

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Community Ecosystem

Open source solutions are made possible due to the countless community members, made up of administrators and developers, who contribute their code, add features and provide tons of information available on forums and wikis.

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No Vendor Locking

Open source PBXs use the same protocol standard used in all IP phones, gateways and every other VoIP endpoint. This means you can use any vendor you wish, making the solution highly compatible.

PBXact - Certified FreePBX

PBXact is a certified version of the world’s most popular open-source PBX, FreePBX. It’s an all-in-one solution packaged with the Linux operating system, PBX software and WebGUI for control. Its software is tightly controlled by Sangoma engineers to ensure reliable and it included dozens of unified communication features which are normally chargeable add-ons of FreePBX. PBXact is highly configurable which is favorable for developers enabling them to integrate their own applications to tune the solution for their business needs. Support is provided directly by Sangoma engineers by SLA and with deployment options as well.

Businesses interested in the power and customizability of open source who require the solution to be commercially supported by a vendor and scalable for future growth with unified communication capabilities should choose Sangoma’s PBXact phone system.

PBXact is the solution for you if your organization requires a highly customizable solution, commercially supported by Sangoma and if you have in-house staff knowledgeable in Linux and telecommunication skills. If you are looking for an all-in-one turnkey, commercial unified communication solution, with an all-included pricing model and support check out a Switchvox Phone System.

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Learn the top 6 Reasons to Choose PBXact


The most popular open-source PBX in the world is FreePBX, a community supported platform and sponsored by Sangoma. It is one complete package containing a Linux operating system, the PBX software and a fully featured WebGUI. One of the major reasons for its success and popularity is because it uses Asterisk, the world’s most popular open-source framework for building communication systems. Asterisk powers IP PBX systems, VoIP gateways, conference servers and is used by small businesses, large businesses, call centers, carriers and government agencies, worldwide.

If you are looking for an all-in-one open-source PBX built on Asterisk, and completely supported by its community FreePBX is for you.

You won’t believe the affordability with PBXact. Chat with our Sales Team now!

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