Compare software

Smart-SIP-Phone vs Jami: catalog facts
Smart-SIP-Phone	Jami
Freemium Free standard version, with a paid Pro version and branding options for businesses.	Free Free software under the GPLv3 or later. A GNU project with no paid tier.
Windows, macOS, Linux, Android, iOS	Windows, macOS, Linux, Android
Works with any SIP PBX Native packages for many Linux distributions plus Windows and macOS	Completely peer to peer, with no server relaying data between users No phone number or email needed to create an account
Proprietary software Needs a SIP account or PBX to be useful	Peer-to-peer delivery means messages to an offline device wait until it reconnects Connection reliability varies more than with a server-relayed service
Downloadable app	Downloadable app
Closed source	Open source
License: Proprietary	License: GPL-3.0
Not stated if an account is needed	No account needed
Not stated if it works offline	Needs internet
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked September 21, 2026

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