Patent ID: 7668911

Claim:
A session control server for communication control between plural terminals, comprising: a line interface to be coupled via a network to plural first terminals related to a first user which can use at least the first terminals and to plural second terminals related to a second user which can use the partner terminal, and said line interface being coupled via a network to a presence server to be stored with terminal type information and session status information between one of the first terminals and one of the second terminals which communicates with said one first terminal in a state in which the respective information is related; and a controller coupled to the line interface; wherein the controller extracts the terminal type information of one of the first terminals of a packet received via the line interface from header information of the received packet, the controller acquires, from the presence server, terminal type information of one of said second terminals as a destination of the received packet, the controller selects a second terminal among the second terminals to be communicated between the first user and the second user on the basis of the extracted terminal type information of said one first terminal, and the controller transfers a message for the second user to the selected second terminal, the message which is received from one of the first terminal, wherein the terminal type information comprises information regarding a hardware configuration of the terminal.