Your communication costs should be assessed from the point of view of bandwidth costs/month and potential data transfer costs/month. Your bandwidth and data transfer needs for a particular Image Network Communication System will depend on whether you require real-time and/or store and forward solutions for an arrary of specific modalites (ie. 4di, 3di, Video-i, Video, Stills, animations, and waveforms ). Some components of your system will include communication protocols, security solutions , network bandwidth agreements, codecs and hardware for data transmission.