The communications element of CNS/ATM is evolving with technology. Work is underway to establish a common regional virtual private network (CRV) in the Asia/Pacific region for improved ground to ground communications. This internet protocol based network will provide a more cost effective, flexible and advanced solution to overcome limitations with the current system of multiple point-to-point connections for the air traffic service message handling system (AMHS).
Other emerging communications technology is enabling greater use of datalink communications in lieu of the legacy VHF and HF voice communication systems. However, for most operations the primary means of communications will continue to be VHF and HF voice.