A system capable of supporting secure communication over a packet-based
network is provided. The system includes a transmit terminal adapted to
transmit information. A secure terminal relay is coupled to the transmit
terminal and configured to receive the information. The information is
then converted into baseband information. A communication gateway coupled
to the secure terminal relay is configured to receive the baseband
information from the secure terminal relay. The baseband information is
then packetized for transmission over the packet-based network.