FreePBX is a web-based

open-source Open source is source code that is made freely available for possible modification and redistribution. Products include permission to use the source code, design documents, or content of the product. The open-source model is a decentralized so ...

graphical user interface The GUI ( "UI" by itself is still usually pronounced . or ), graphical user interface, is a form of user interface that allows users to interact with electronic devices through graphical icons and audio indicator such as primary notation, ins ...

(GUI) that manages

Asterisk The asterisk ( ), from Late Latin , from Ancient Greek , ''asteriskos'', "little star", is a typographical symbol. It is so called because it resembles a conventional image of a heraldic star. Computer scientists and mathematicians often voc ...

, a

voice over IP Voice over Internet Protocol (VoIP), also called IP telephony, is a method and group of technologies for the delivery of voice communications and multimedia sessions over Internet Protocol (IP) networks, such as the Internet. The terms Internet t ...

and

telephony Telephony ( ) is the field of technology involving the development, application, and deployment of telecommunication services for the purpose of electronic transmission of voice, fax, or data, between distant parties. The history of telephony is i ...

server. FreePBX is licensed under the

GNU General Public License The GNU General Public License (GNU GPL or simply GPL) is a series of widely used free software licenses that guarantee end users the four freedoms to run, study, share, and modify the software. The license was the first copyleft for general ...

version 3. It is a component of the FreePBX Distro, which is an independently maintained

Linux Linux ( or ) is a family of open-source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991, by Linus Torvalds. Linux is typically packaged as a Linux distribution, whi ...

system derived from the source code of the

CentOS CentOS (, from Community Enterprise Operating System; also known as CentOS Linux) is a Linux distribution that provides a free and open-source community-supported computing platform, functionally compatible with its upstream source, Red Hat En ...

distribution, having Asterisk pre-installed. It is also included in various third-party distributions such as ''The FreePBX Distro'' and ''AsteriskNow''. FreePBX was acquired by Schmooze.com in early 2013. That firm was, in turn, taken over by Sangoma Technologies Corporation on Jan 2, 2015. FreePBX is a community of developers and contributors who devote their work to making complicated phone system software easy to use and functional. Many of the songs that are preinstalled are made by artist Macroform.

Installation

FreePBX can be installed as standalone software, or as part of a pre-configured FreePBX Distro that includes the operating system, the Asterisk PBX, FreePBX, and assorted dependencies: FreePBX is included in open source distributions such as The Official FreePBX Distro, AsteriskNOW,

Elastix Elastix is an unified communications server software that brings together IP PBX, email, IM, faxing and collaboration functionality. It has a Web interface and includes capabilities such as a call center software with predictive dialing. The Ela ...

and RasPBX

Development

FreePBX is written in PHP and JavaScript. The first FreePBX release, version 0.2 (November 28, 2004), was named the Asterisk Management Portal (AMP). The project was renamed to FreePBX for trademark reasons, as

is a registered trademark of the Digium corporation (which is now also a subsidiary of Sangoma Technologies Corporation). New releases of Asterisk have been accommodated by various updates to FreePBX. Updates have included new menus and support for additional capabilities such as voice mail, calling queues, fax, multiple languages, DAHDI and a local user directory. Current versions are: * FreePBX 2.11 – Completed 2013-05-14- – Adds support for Asterisk 11, Destination popOvers, Module Admin Security Auditing, Chan Motif Module, WebRTC User Control Panel * FreePBX 12 – Previous Release 2014-06-23- – Adds support for Asterisk 12&13, New User Control Panel, Module Admin version control, PJSIP Support *FreePBX 13 - Previous Stable - adds responsive GUI, support for Asterisk 13, Call Event Logging CEL and reporting, fwconsole CLI system management, Enhanced Bulk User Management, expanded localization support for audio and sound files, and a new global search option. *FreePBX 14 - Previous Stable *FreePBX 15 - Stable Adds a new REST and GraphQL API. Adds a rebuilt backup module and a new Filestore module. FreePBX supports numerous hardware manufacturers, including

Aastra Technologies Aastra Technologies Limited, formerly headquartered in Concord, Ontario, Canada, made products and systems for accessing communication networks, including the Internet. Its products included residential and business telephone terminals, screen ...

, Algo, AND,

AudioCodes AudioCodes Ltd. is a provider of advanced communications software, products and productivity solutions. Its services enable enterprises and service providers to build and operate all-IP voice networks for unified communications (UC), contact cen ...

Cisco Systems Cisco Systems, Inc., commonly known as Cisco, is an American-based multinational digital communications technology conglomerate corporation headquartered in San Jose, California. Cisco develops, manufactures, and sells networking hardware, ...

, Cyberdata, Digium,

Grandstream Founded in 2002, Grandstream Networks is a manufacturer of IP voice and video communications equipment, video surveillance, gateways and analog telephone adapters (ATAs), and Asterisk-based IP-PBX appliances. Grandstream supplies small and medi ...

, Mitel, Nortel,

Panasonic formerly between 1935 and 2008 and the first incarnation of between 2008 and 2022, is a major Japanese multinational conglomerate corporation, headquartered in Kadoma, Osaka. It was founded by Kōnosuke Matsushita in 1918 as a lightbulb ...

Polycom Poly, formerly Polycom, a part of HP Inc., is an American multinational corporation that develops video, voice and content collaboration and communication technology. Polycom was co-founded in 1990 by Brian L Hinman and Jeffrey Rodman. In 2018 ...

, Sangoma,

Snom Snom Technology GmbH is a German company which manufactures Voice over Internet Protocol (VoIP) telephones, based on the IETF standard Session Initiation Protocol (SIP). Snom's products are targeted at the small- to medium-sized business se ...

, Xorcom, and Yealink. FreePBX developers estimate the distro has been deployed in millions of active PBX systems in over 220 countries and territories.''Telephony features...''
TMC.net

References

External links

* {{official website, https://freepbx.org// Free VoIP software Unified communications Software using the GNU AGPL license Software using the GPL license