FusionPBX

OPEN SRC

Web interface for multi-platform voice switch called FreeSWITCH

► Small to medium businesses needing a customizable PBX

VG SCORE

7.2

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Product Details

PricingOpen Source

API✅ REST

Learning CurveModerate

Integrations13 available

■ INTELLIGENCE BRIEFING — Weekly tool drops. No spam.

PROS & CONS

STRENGTHS

Completely free and open-source with no licensing costs.
Powerful feature set rivaling commercial PBX systems.
Highly flexible and customizable due to its open-source nature.

WEAKNESSES

−Lacks official professional support, relying on community or paid third-party services.
−The web interface can feel dated and less polished compared to commercial alternatives.

KEY FEATURES

Multi-Tenant Architecture

Host multiple independent phone systems on a single installation.

Integrated Billing & Accounting

Includes tools for invoicing, payment processing, and rate management.

Advanced Call Routing

Configure IVRs, time conditions, and complex call flows via GUI.

High Availability & Failover

Built-in support for clustering and redundant systems.

WHO IS FusionPBX BEST FOR?

Small to medium businesses (SMBs) and call centers

It provides a cost-effective, open-source PBX/UC solution with advanced call routing, IVR, and call queuing features for managing business communications.

Small to medium-sized businesses (SMBs)

It provides a cost-effective, open-source PBX solution for managing business phone systems, voicemail, and call routing without high licensing fees.

INTEGRATIONS

Billing systemsSNMPWebRTCSIP trunksMonitoring tools (e.g., Nagios)SIP phones/trunksFail2banPostgreSQLCRM systemsAsteriskFreeSWITCHPayment gatewaysLDAP/Active Directory