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Linphone vs MicroSIP: catalog facts
Linphone	MicroSIP
Free The app and the basic SIP service are free.	Free Free and open source under the GPL v2.
Windows, macOS, Linux, Android, iOS	Windows
Works with any standard SIP account Desktop and mobile builds from one project	Small and light on system resources Works with standard SIP providers and PBX systems
Needs a SIP account or PBX to be useful Website is primarily in French	Windows only; other desktops need Wine No mobile apps
Downloadable app	Downloadable app
Open source	Open source
License not stated	License: GPL-2.0
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 September 23, 2026	Official website Full listing and sources Checked September 23, 2026

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