A communication system provides multimedia communications within and between armored ground combat vehicles (GCVs). The system includes client computers within the armored GCVs providing distributed and interconnected multimedia communications among the client computers. The multimedia communication may include a one-to-one communication, a text communication to a group, an audio communication to a group, or a video communication to a group. Logic providing the distributed and interconnected multimedia communications is not located at a single client computer. The client computers display graphical user interfaces (GUIs) enabling soldiers to select parameters of the communication system with some GUIs providing presence discovery among the armored GCVs. One of the plurality of client computers acts as an origination station and other client computers may be configured as receiving communication station(s). The origination communication station may transmit digital communication data to the receiving communication station(s).