Freedom251 › Business Phone Systems
FusionPBX
What FusionPBX is
FusionPBX is a free, open-source web interface for the FreeSWITCH communication platform. It can operate as a PBX, call center, fax, voicemail, conference, or voice application server. Deployments may be single-tenant or domain-based multi-tenant, and the maker describes unlimited extensions. Calling features include custom routing, recording, transfers, parking, queues, ring groups, IVR menus, follow-me calling, voicemail transcription, and an auto attendant. Administrators can provision phone devices and enable WebRTC calls in a browser. FusionPBX runs on various operating systems and hardware, with documentation optimized for Debian and Ubuntu. Installation guidance recommends Debian 12 or 13 and provides an Ubuntu 24.04 LTS path, while its CentOS 7 install is described as out of date. Gateways can connect it to other VoIP servers, voice providers, or SIP-registration systems. A JSON REST API is listed at Purple and Gold membership levels. Paid memberships range from 100.00 USD to $1,000 a month and require a one-year commitment.
Who it suits
FusionPBX suits small, medium, and large businesses needing self-hosted phone-system functions. It is also relevant to administrators working with Debian, Ubuntu, FreeSWITCH, SIP gateways, or browser calling.
What it does well
- Free open-source communication platform
- Supports multi-tenant deployments
- Unlimited extensions are described
- Includes WebRTC browser calling
- Provides extensive PBX and call-center features
What to know first
- CentOS 7 installation is out of date
- Paid memberships require a one-year commitment
- Green membership includes no support hours
- JSON REST API requires Purple or Gold membership
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| Green Membership | Monthly; membership requires a one-year commitment · One individual · Member applications on up to five company-owned or leased servers · No support hours included | $100 a month |
| Gold Membership | Monthly; membership requires a one-year commitment · Up to three employees · Member applications on up to thirty company-owned or leased servers · Up to six hours of priority support each month | $1,000 a month |
| Blue Membership | Monthly; membership requires a one-year commitment · One individual · Member applications on up to ten company-owned or leased servers · Up to 1.5 hours of official support each month | $300 a month |
| Purple Membership | Monthly; membership requires a one-year commitment · One individual · Member applications on up to fifteen company-owned or leased servers · Up to three hours of priority support each month | $500 a month |
As fusionpbx.com lists them, read 12 Oct 2026. The maker's own page has the final word.
Verdict
FusionPBX provides a broad, self-hosted communications platform with PBX, call-center, voicemail, and browser-calling functions. Memberships add applications and support, but paid plans carry annual commitments.
Facts from FusionPBX's own pages
- API
- The maker lists a JSON REST API among the member applications available at Purple and Gold levels. · fusionpbx.com, 12 Oct 2026
- Auto attendant
- Yes · fusionpbx.com, 21 Sept 2026
- Calling features
- Documented features include call routing, recording, transfers, parking, queues, ring groups, IVR menus, and follow-me calling. · docs.fusionpbx.com, 12 Oct 2026
- Call routing
- custom · fusionpbx.com, 21 Sept 2026
- Extensions
- The maker describes FusionPBX as providing unlimited extensions. · fusionpbx.com, 12 Oct 2026
- Free plan
- Yes · fusionpbx.com, 21 Sept 2026
- Install options
- The download page recommends Debian 12 or 13 and provides an Ubuntu 24.04 LTS install path; it warns that its CentOS 7 install is out of date. · fusionpbx.com, 12 Oct 2026
- Integrations
- Gateways can connect FusionPBX to other VoIP servers, voice providers, or systems requiring SIP registration. · docs.fusionpbx.com, 12 Oct 2026
- Intended users
- The maker describes FusionPBX as providing phone-system features for small, medium, and large businesses. · fusionpbx.com, 12 Oct 2026
- Multi-tenancy
- FusionPBX supports single or domain-based multi-tenant deployments. · fusionpbx.com, 12 Oct 2026
- Product
- FusionPBX is an open-source web interface for the FreeSWITCH communication platform and can serve as a PBX, call center, fax, voicemail, conference, or voice application server. · docs.fusionpbx.com, 12 Oct 2026
- Provisioning and browser calls
- FusionPBX documents phone device provisioning and WebRTC calls in a web browser. · docs.fusionpbx.com, 12 Oct 2026
- Security
- The security guide says the default certificate is self-signed and recommends firewalls, strong passwords, SSH, and keeping the operating system, FreeSWITCH, and FusionPBX updated. · docs.fusionpbx.com, 12 Oct 2026
- Support
- Official support is offered to Blue, Purple, and Gold members through support tickets, with monthly support hours included according to membership level. · fusionpbx.com, 12 Oct 2026
- Supported systems
- FusionPBX runs on a variety of operating systems and hardware, with the documentation saying it is optimized for Debian and Ubuntu. · docs.fusionpbx.com, 12 Oct 2026
- Voicemail transcription
- Yes · fusionpbx.com, 21 Sept 2026
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