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GOnnect vs Linphone: catalog facts
GOnnect	Linphone
Free Free and open source under the GPL-2.0.	Free The app and the basic SIP service are free.
Linux	Windows, macOS, Linux, Android, iOS
Phone calls and video conferences in one client Built to integrate with the Linux desktop	Works with any standard SIP account Desktop and mobile builds from one project
Needs a VoIP telephone service to call through Linux only according to the research	Needs a SIP account or PBX to be useful Website is primarily in French
Downloadable app	Downloadable app
Open source	Open source
License: GPL-2.0-or-later	License not stated
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked September 23, 2026

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