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

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