In today’s world of unified communications, businesses demand flexible, scalable, and secure telephony platforms that go beyond traditional PBX systems. I recently completed a Custom PBX and Agent Panel project designed to bring enterprise-grade call management, WebRTC integration, and modern APIs together in one powerful solution.
This system was built with FreeSWITCH/Asterisk at its telephony core, a Node.js microservices backend, and a React.js/Next.js Progressive Web App frontend, delivering a complete end-to-end communication platform.
🔑 Key Features
📞 Core Telephony
- WebRTC Calls from the browser (no softphone required)
- Full Call Control – Hold, Transfer, Mute, and Conference
- CDR (Call Detail Records) with detailed call logs
- Dynamic Dial Plan, IVR Menus, Extensions & Feature Codes
- SIP Trunk & Gateway Setup for carrier integrations
👥 Campaign & Lead Management
- Inbound & Outbound Campaign Management for sales, support, and outreach
- Lead Management System with integrated call history & assignment
- Campaign Script Management so agents always have the right pitch in real time
🔒 User & Access Management
- RBAC (Role-Based Access Control): Dedicated dashboards for Admins, Supervisors, Agents, Customers, and Vendors
- Secure Authentication: JWT-based login with granular permissions
🔗 API-Driven Microservices
- Node.js backend with modular microservices for scalability
- FreeSWITCH/Asterisk integration via CURL/XML APIs for real-time dialplan updates
- REST APIs for CRM/ERP integration
🗄️ Data & Analytics
- PostgreSQL database powering CDRs, campaign data, and lead tracking
- Real-time campaign dashboards with agent performance & call outcomes
🎨 Frontend Experience
- React.js + Next.js frontend built as a PWA for seamless desktop & mobile use
- Campaign dashboards with live metrics and agent monitoring
- Drag-and-drop IVR and Dial Plan builder
⚙️ Technical Highlights
- Telephony Handling: Either FreeSWITCH or Asterisk can be used interchangeably.
- Node.js Microservices: Handle call routing, provisioning, logging, and API endpoints.
- Dynamic Config Updates: Admins can modify dialplans and IVR menus from the web panel, instantly applied via XML/CURL to the telephony engine.
- Security: JWT-based authentication with granular RBAC ensures secure access.
🚀 Why This Matters
Unlike legacy PBX solutions, this custom platform is cloud-ready, API-driven, and browser-native. It empowers businesses with:
- Lower cost of ownership (WebRTC eliminates softphone licensing).
- High scalability with microservices.
- Seamless integrations into existing business workflows.
- Future-ready communications with IVR, SIP trunking, and custom call flows.
🏆 The Result
The system is not just a PBX — it’s a complete communication hub where businesses can manage their entire telephony infrastructure from a web browser. With real-time control, call analytics, and extensible APIs, it is designed to scale with the needs of modern enterprises.
✅ Tech Stack Used:
- Backend: Node.js, Microservices, REST APIs
- Frontend: React.js, Next.js, Progressive Web App (PWA)
- Telephony: FreeSWITCH / Asterisk (configurable)
- Database: PostgreSQL
- Security: JWT, RBAC
- Features: WebRTC, CDR, IVR, Extensions, SIP Trunks, Gateways, Feature Codes
🔗 This project showcases how modern frameworks combined with powerful telephony engines can create a next-generation PBX system — bridging the gap between traditional telecom and cloud-native communication platforms.