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RingCentral vs 3CX Free Basic: catalog facts
RingCentral	3CX Free Basic
Paid The app is a free download; the phone and messaging service needs a RingCentral business…	Freemium Free for up to 10 users and 4 simultaneous calls; larger editions are paid.
Windows, macOS, Android, iOS	Self-hosted
Phone, meetings and chat in one app Meetings with up to 300 participants and live transcription	No licence cost for small teams Runs on your own infrastructure
Aimed at businesses with a paid plan Not end-to-end private messaging for personal use	Limited to 10 users and 4 simultaneous calls Proprietary software
Downloadable app, Hosted service	Self-hosted
Closed source	Closed source
License not stated	License not stated
Account needed	Not stated if an account is needed
Needs internet	Not stated if it works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked September 23, 2026

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