Compare software

Calls vs GOnnect: catalog facts
Calls	GOnnect
Free Free and open source under the GPL-3.0-or-later.	Free Free and open source under the GPL-2.0.
Linux	Linux
Handles both cellular and SIP calls Integrates with the GNOME desktop	Phone calls and video conferences in one client Built to integrate with the Linux desktop
Linux only SIP calling needs an account with a VoIP provider	Needs a VoIP telephone service to call through Linux only according to the research
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0-or-later	License: GPL-2.0-or-later
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 October 1, 2026

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