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
Best FreeSWITCH Alternatives ranked by AI · updated May 2025
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FreeSWITCH is a scalable open-source cross-platform telephony platform designed to route and interconnect popular communication protocols using audio, video, text, or any other form of media.
Price: Free
Top 6 FreeSWITCH alternatives
Asterisk is an open-source framework for building communications applications. It turns an ordinary computer into a communications server.
Twilio is a cloud communications platform that enables users to make and receive calls, send and receive messages, and more using APIs.
Varies based on usage
Plivo is a telecommunication platform that provides voice and messaging capabilities through APIs.
Varies depending on usage
Newfies-Dialer is an open-source auto-dialer and voice broadcasting software designed for businesses and organizations to reach their contacts efficiently.
Wazo is an open-source software platform designed for telecommunication services and unified communication.
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