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Calls vs Baresip: catalog facts
Calls	Baresip
Free Free and open source under the GPL-3.0-or-later.	Free Free and open source under the BSD 3-Clause licence.
Linux	Command line
Handles both cellular and SIP calls Integrates with the GNOME desktop	Encrypted calls with SRTP and ZRTP Unlimited SIP accounts and calls
Linux only SIP calling needs an account with a VoIP provider	No graphical interface in the core program Configuration takes some SIP knowledge
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0-or-later	License: BSD-3-Clause
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 24, 2026

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