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COMMS2 is a hardware abstraction layer providing connectivity among different military communication equipment and networks.

COMMS2 act as a software driver for different CNRs offering reliable, and unreliable communication services over radio networks while supporting a multitude of radio modem devices. A fixed, standardized, well documented socket-like programming interface is exposed towards the client with ability to send and receive messages with corresponding transmission status notifications.


  • Increased level of radio network reliability
  • Increased level of radio network efficiency
  • Maximum level of radio network interconnectivity
  • Reduced costs of radio network maintenance and upgrades


  • Integrate different effective lifespan of legacy CNR equipment
  • Provide unified communication layer for tactical communications
  • Integrate different CNR equipment into common C4I data network
  • Offers cross network routing
  • Extend effective lifespan of legacy CNR equipment


  • COMMS2 service can handle multiple COMMS2 clients simultaneously
  • One OS service per host
  • Multiple radio channels/modems can co-exist on the same COMMS2 service
  • Reliable and unreliable transport protocols
  • Radio nodes in EMCON mode are supported
  • Node forwarding (retransmissions inside same network) is supported
  • All radio nodes are capable of routing and/or re-broadcasting
  • Can act as a gateway between different types of networks, combining fixed and wireless networks
  • Radio networks can have single-hop or multi-hop topology
  • IP type of addressing is used for addressing nodes in the radio network
  • Support message priority as part of message flow control
  • Messages are multiplexed or replicated over different radio channels simultaneously in order to achieve higher data throughput or higher delivery reliability
  • IP Gateway mode for existing TCP client/server applications
  • Based on Mesh topology: adio nodes operate independently from each other in a distributed way with no base or central station
  • Quick, easy and flexible configuration
  • Remote configuration
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