TRANSMISSION MANAGEMENT SYSTEM, TRANSMISSION SYSTEM, PROGRAM, PROGRAM SUPPLY SYSTEM, AND MAINTENANCE SYSTEM

摘要

A transmission system is a transmission management system that manages image communications among a plurality of transmission terminals capable of performing at least voice communications. The transmission system includes a terminal management section that manages image communications state information indicating an image communications state of each of the transmission terminals for each terminal identification information for identifying each transmission terminal, a creation section that creates a specified communications control message causing the specified transmission terminal to control the image communications in accordance with the image communications state information, and a transmitting section that transmits the created communications control message to the transmission terminal caused to control the image communications.