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tSIP vs Bria Solo: catalog facts
tSIP	Bria Solo
Free Free and open source under the BSD 3-Clause licence.	Paid A free trial is offered, and multiple VoIP accounts require a paid plan.
Windows	macOS
Portable and small, with JSON settings Programmable buttons and BLF like a bench phone	Voice and video calling with call control features Works with up to five VoIP or call server accounts
Windows only Basic version has no video support	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: BSD-3-Clause	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
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 2, 2026

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