Patent ID: 8036359
Filing Date: 2011-10-11
Classification: H04L,H04M

Abstract:
1. A communication system, comprising: a plurality of data terminals which each include display units; a conference processing unit to execute conference synthesis processing among the plurality of data terminals; a server apparatus which receives a call information event including telephone IDs specifying a plurality of telephone terminals by which a conference connection is made, links communication connections in several data terminals associated with the telephone IDs, respectively, to the conference connection, and also enables connecting a conference processing unit; a connection controller which selectively executes first processing to execute the communication connections among the several data terminals, and second processing to make the several data terminals communication-connect to the conference processing unit; a table which stores a data indicating the corresponding relations among user IDs specifying a plurality of data terminals, connection systems, and display systems, wherein said relations for the connection systems to indicate at least one of the first processing and the second processing, and the display systems to indicate at least one of a first screen display mode to individually display a plurality of screens related to each of the several data terminals in the first processing on the display units, and a second screen display mode to display screens in which a plurality of screens related to each of the several data terminals in the second processing are synthesized by the conference processing unit on the display units; a processor which executes the first screen display mode and executes the second screen display mode based on the table for each of the several data terminals; and a switching controller which selectively executes switching from the first screen display mode to the second screen display mode and maintaining a screen display mode before switching, based on the table, in switching from the first processing to the second processing, and selectively executes switching from the second screen display mode to the first screen display mode and maintaining a screen display mode before switching, based on the table, in switching from the second processing to the first processing.