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Asterisk vs FusionPBX: catalog facts
Asterisk	FusionPBX
Free Free and open source.	Free Free to download and run on your own server.
Linux, Self-hosted	Web, Self-hosted
Run your own PBX and VoIP system Flexible enough to build custom telephony setups	Multi-tenant PBX managed from a web interface Covers call center, fax, voicemail and conferencing
Configuration requires telephony knowledge A framework to build on rather than a ready-to-use phone system	Requires running and maintaining your own FreeSWITCH server Aimed at administrators with telephony knowledge
Downloadable app, Self-hosted	Self-hosted
Open source	Open source
License not stated	License not stated
No account 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 24, 2026	Official website Full listing and sources Checked September 23, 2026

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