Dialer & PBX Customization
FusionPBX Customization
FusionPBX sits on top of FreeSWITCH as a multi-tenant PBX platform — ideal for hosted PBX providers serving many small customers from shared infrastructure. We deploy FusionPBX with the operational rigor it doesn't ship with by default: proper PostgreSQL replication, FreeSWITCH sizing beyond the defaults, custom modules (apps) for features your tenants actually need, and branding so your customers see your product, not the stock FusionPBX UI. We also handle the less glamorous work — LDAP integration, white-label provisioning portals, billing hooks, and multi-region deployments.
Who it's for
- Hosted PBX providers launching or scaling a FusionPBX-based service
- MSPs offering voice to their client base on a multi-tenant platform
- Operators inheriting a FusionPBX install and wanting it production-hardened
- Teams needing custom apps (modules) that ship inside the FusionPBX UI
Our approach
- 1Audit the deployment — most FusionPBX installs run on one box that shouldn't
- 2Split FreeSWITCH, database, and web UI onto separate nodes for real HA
- 3Build custom FusionPBX apps in PHP following the module conventions
- 4Integrate provisioning with your CRM or order management system
- 5Operate with real monitoring — PostgreSQL replication lag, FreeSWITCH channels, SIP registration health
What you get
Multi-tenant FusionPBX deployment with proper HA and backup strategy
Custom branded UI (logo, theme, tenant portal)
Custom apps in PHP for features that aren't in the stock distribution
Provisioning API integration with your billing or CRM system
PostgreSQL streaming replication and automated failover
Monitoring stack — Prometheus, Grafana, alerting on real operational signals
Common questions
Ready to build on carrier-grade voice?
Talk to a VoIP engineer — not a salesperson.