Open Voice Communication System for Space Mission Control

Openvocs is a clear, simple, open and flexible architecture for Space Mission Control Room Voice Conferencing Systems and enables system designs with component-based implementations and interoperability between different vendors for different parts of the system. Openvocs is initiated by the German Aerospace Center (DLR) and currently performed as a collaborative research and prototyping project between the German Space Operations Center (GSOC) and the DLR lab for Simulation and Software Technology.

Open source

We are in preparation to release our prototype implementations on GitHub. We are currently testing our implementation for the German Space Operations Center and at the European Astronaut Center.


On the server side we use a Linux server as proxy to connect clients, perform state synchronization and connect standard IP VoIP based Gateways (to SIP, E1/T1, FxO, ...). We currently work on client implementations for Linux, Android as well as on a full web based version.


Well, it’s running on Android or on every mobile device with an up-to-date browser, that supports WebRTC … (Chrome, Firefox, Edge and soon also Safari)

Meet us

We highly appreciate any Feedback to our project and idea, so please leave us a message.