ED-137 Simulation – VoIP Air Traffic Management Solutions

Testing ED-137 and ED-138 Interoperability Standards for VoIP Air Traffic Control

ED-137 Protocol emulation, delay measurements, Voice Quality Testing and ED-138 Monitoring Solutions.

Voice communications for air traffic management, whether it is Air-Ground (A-G) or Ground-Ground (G-G) were predominantly over TDM based Air Traffic Management (ATM) networks. With the latest developments in EUROCAE (European Organization for Civil Aviation Equipment) ED-137 inter-operability standard, it is now possible to implement VoIP technology for voice services for air traffic control. This implementation uses the familiar Session Initiation Protocol (SIP) to establish, modify, and terminate sessions within an Air Traffic Services Ground Voice Network with endpoint equipment. The endpoint equipment can be SIP based Controller Working Positions (CWP), Next Generation Voice Communication Systems (VCS), Radios, Recorders, and VCS/Radio Gateways allowing interoperability with legacy equipment and protocols as shown in the diagram above. Existing VCS can access an IP wide area network as the connection backbone using gateways.

Before such a system is made operational, it must be thoroughly tested for voice quality, latency, performance, reliability, and functionality. GL tools offer end-to-end testing from the radio interfaces to the CWP.