Top 3 FreePBX alternatives

Last updated: February 21, 2018
FreePBX
FreePBX is a web-based open source GUI (graphical user interface) that controls and manages Asterisk (PBX), an open source communication server. FreePBX is licensed under the GNU General Public License (GPL), an open source license.
The best FreePBX alternatives:


Asterisk


An open source telephony switching and private branch exchange service for Linux. Information on downloading, installation of and support for the product. Asterisk is like a box of Legos for people who want to create communications applications. It includes all the building blocks needed to create a PBX, an IVR system, a conference bridge and virtually any other communications app you can imagine.

3CX


3CX Phone System for Windows is a software-based IP PBX that replaces a proprietary hardware PBX / PABX. 3CX’s IP PBX has been developed specifically for Microsoft Windows and is based on the SIP standard, making it easier to manage and allowing you to use any SIP phone (software or hardware).

Kerio Operator


Kerio Operator is a small business phone system. Using VoIP, it simplifies voice communications while offering advanced phone features typically associated with enterprise phone systems like conference calls, call forwarding, call recording, ring groups, office voicemail to email, auto attendant, and call queues.