Multimedia information exchanging system and equipment therefor

摘要

A multimedia information exchanging system in a digital exchange network that has an exchange system in which channels are selectively assigned for communication among a plurality of subscribers. This system has many pieces of subscriber line terminating equipment each of which is provided on the subscriber side of each subscriber line and which connects at least one terminal device to the subscriber line through subchannels. The system permits simultaneous multiple communications between multiple pairs of terminal devices by sending request information from a first piece of subscriber line terminating equipment to a second piece of subscriber line terminating equipment-the request information calling for at least one of the subchannels available for use in a channel established between the two pieces of subcriber line terminating equipment-and by connecting the subchannels conforming to the request to one of the terminal devices accommodated in each of the first and second pieces of subscriber line terminating equipment.