Fee management system, transmission system, and fee management method

A transmission management method, comprising:

• transmitting, by a plurality of transmission terminals, information associated with a video conference conversation between the plurality of transmission terminals,
• determining, by conversation quality determining units in the plurality of transmission terminals, actual conversation quality information indicating actual conversation communication service quality of audio and video provided during the video conference conversation with respect to a predetermined standard of conversation communication service quality, wherein the actual conversation quality information is based in part on an amount of sound interruption, an amount of image skipping and an average actual image resolution achieved during the video conference conversation, wherein the average actual image resolution is determined based on received pixel information;
• managing, by a fee management system, attending fees that are charged when the plurality of transmission terminals attend the video conference conversation;
• receiving, by a receiver of the fee management system, attending hours information and the actual conversation quality information, the attending hours information indicating attending hours for which each of the transmission terminals attended the video conference conversation;
• computing, by processing circuitry of the fee management system, total attending hours based on the attending hours information, the total attending hours indicating hours for which the respective terminals attended the conversation;
• and
• computing, by the processing circuitry of the fee management system, an attending fee for each of the terminals based on the corresponding total attending hours and the actual conversation quality information.