FreePBX is an open-source GUI (graphical user interface) that controls and manages Asterisk (PBX), an open-source communication server.
Best VitalPBX Alternatives ranked by AI · updated May 2025
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VitalPBX is a complete open-source communication solution based on Asterisk. It offers a range of features like PBX, voicemail, conferencing, and more.
Price: Free
🎯 vitalpbx.com/vitalpbx-one-pbx-plan
Top 6 VitalPBX alternatives
3CX is a software-based private branch exchange (PBX) system for unified communications that works with popular IP phones, SIP trunks, and Gateways....
Starting at $0 for the standard edition
Asterisk is an open-source framework for building communications applications. It turns an ordinary computer into a communications server.
Elastix is an open-source unified communications server software that integrates the best tools available for Asterisk-based PBXs into a single, easy-to-use interface.
Kamailio is an open-source SIP server that is used for building real-time communication applications.
Issabel is an open-source Unified Communications software that integrates PBX, email, instant messaging, faxing, and more.
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