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CallsBria Solo
Free

Free and open source under the GPL-3.0-or-later.

 Paid

A free trial is offered, and multiple VoIP accounts require a paid plan.

Linux macOS
  • Handles both cellular and SIP calls
  • Integrates with the GNOME desktop
  • Voice and video calling with call control features
  • Works with up to five VoIP or call server accounts
  • Linux only
  • SIP calling needs an account with a VoIP provider
  • Requires a separate VoIP service or call server
  • Multi-account support is limited to the paid plan
Downloadable app Downloadable app
Open source Closed source
License: GPL-3.0-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

Checked October 1, 2026

Checked October 2, 2026

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