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Smart-SIP-PhoneBaresip
Freemium

Free standard version, with a paid Pro version and branding options for businesses.

 Free

Free and open source under the BSD 3-Clause licence.

Windows, macOS, Linux, Android, iOS Command line
  • Works with any SIP PBX
  • Native packages for many Linux distributions plus Windows and macOS
  • Encrypted calls with SRTP and ZRTP
  • Unlimited SIP accounts and calls
  • Proprietary software
  • Needs a SIP account or PBX to be useful
  • No graphical interface in the core program
  • Configuration takes some SIP knowledge
Downloadable app Downloadable app
Closed source Open source
License: Proprietary 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

Checked October 1, 2026

Checked September 24, 2026

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