Addressing the emerging technology of video image compression over commercially available terrestrial and satellite transmission circuits

The authors address the use of video communications with commercial telephone and satellite services as a cost-effective means of long-distance problem solving and teletraining for US Government applications. A primary objective of this feasibility study and pilot demonstration is to evaluate various video-compression codecs, interactive computer technology, and high-resolution graphics transmission equipment working with government encryption devices over multiple 56-kb telephone lines, or ISDN compatible 64-kb satellite circuits. It is concluded that the use of compressed video imagery, toll quality audio, and high-resolution graphics over multiple 64-kb or 128-kb/s satellite circuits is a proven technology with significant cost advantages over T-1 or 1.5 Mb video circuits as provided on the defense commercial telecommunications network