Reimagining Broadcast Intercom with Open Source

During a sports production event, an insightful conversation raised a simple but powerful question: Why are we still tied to complex, proprietary intercom systems when modern, open-source technologies could offer simpler, more flexible alternatives?

That question didn't just fade away—it sparked action. It led to a unique cooperation between SVT, YLE, NRK, TV2 Norge, and Eyevinn Technology to reimagine intercom systems for live broadcast production.

The Problem with Traditional Intercom

Broadcast intercom systems have been dominated by proprietary hardware for decades. These systems are:

  • Expensive: Hardware-based systems require significant capital investment
  • Inflexible: Difficult to scale or adapt to changing production needs
  • Complex: Require specialized knowledge and maintenance
  • Vendor lock-in: Tied to specific manufacturers with ongoing license fees

For a medium-sized broadcaster, the cost of a traditional intercom system can easily exceed €100,000, with ongoing maintenance and upgrade costs.

The Open Source Alternative

Our solution leverages WebRTC technology to create a browser-based intercom system that runs on standard hardware. Key features include:

Ultra-Low Latency

Sub-200ms latency ensures real-time communication critical for live production environments.

Zero Hardware Requirements

Runs entirely in web browsers—no specialized hardware needed. Production teams can use laptops, tablets, or smartphones.

End-to-End Encryption

Built-in WebRTC encryption ensures secure communication channels.

SIP Integration

Seamless integration with existing SIP-based systems enables hybrid workflows during migration.

Technical Architecture

The system is built on three core components:

  1. WebRTC Signaling Server: Manages connection establishment and routing
  2. Media Server: Handles audio mixing and distribution for large-scale productions
  3. Web Client: Browser-based interface with intuitive controls

All components are containerized and deployable on any cloud infrastructure or on-premises.

Real-World Impact

The Open Intercom project has been deployed in production environments across multiple Nordic broadcasters. Results include:

  • 90% cost reduction compared to traditional hardware solutions
  • Faster deployment: New intercom channels can be provisioned in minutes, not days
  • Greater flexibility: Remote production teams can join from anywhere with internet connectivity
  • No vendor lock-in: Full source code ownership and transparency

Open Source Strategy

The entire project is available on GitHub under an open source license. This approach provides:

  • Transparency: Full visibility into how the system works
  • Community contributions: Improvements and features from the broader broadcast community
  • Future-proof: No dependency on a single vendor's roadmap

Try It Yourself

You can experience the Open Intercom system live at intercom.apps.osaas.io. The demo environment showcases the full functionality including multi-party audio, low-latency communication, and intuitive controls.

What's Next

The Open Intercom project continues to evolve with features like:

  • Advanced audio routing and mixing capabilities
  • Integration with production automation systems
  • Mobile apps for iOS and Android
  • Enhanced monitoring and diagnostics

This project demonstrates that open source collaboration can challenge decades-old industry standards and deliver better, more cost-effective solutions for broadcasters.

Interested in implementing Open Intercom for your production environment? Contact us to discuss your requirements.