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3CX Free Basic vs FreeSWITCH: catalog facts
3CX Free Basic	FreeSWITCH
Freemium Free for up to 10 users and 4 simultaneous calls; larger editions are paid.	Free Free source code; commercially supported builds and professional services are available.
Self-hosted	Windows, macOS, Linux, Self-hosted
No licence cost for small teams Runs on your own infrastructure	Runs on hardware from a Raspberry Pi to multi-core servers Handles voice, video and chat
Limited to 10 users and 4 simultaneous calls Proprietary software	Distributed mainly as source code to build Requires telephony and server administration knowledge
Self-hosted	Self-hosted
Closed source	Open source
License not stated	License not stated
Not stated if an account is needed	No account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 24, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.