Patent ID: 7725117

Claim:
A communication support system for supporting an establishment of connection between communication terminals in a network including a plurality of relay apparatuses that performs wireless transmission with a mobile communication terminal in a coverage area, a relay apparatus management part that records relay apparatus management data representing an allocation status of a transmission bandwidth in each of the plurality of relay apparatuses, a communication management server that controls an establishment of connection between communication terminals including the mobile communication terminal, using the allocation status of the transmission bandwidth represented by the relay apparatus management data, and a messaging server that controls transmission/reception of a message between the communication terminals including the mobile communication terminal, the system comprising: a communication information acquiring part that, in a case where the relay apparatus management data represents that the transmission bandwidth of the relay apparatus for performing wireless transmission with the mobile communication terminal that requests an establishment of connection or that is requested to establish connection with another communication terminal is insufficient for establishing the connection, receives terminal data representing the mobile communication terminal and an another communication terminal which is about to establish connection with the mobile communication terminal from the communication management server or the relay apparatus management part; a relay apparatus specifying part that specifies an alternative relay apparatus capable of relaying transmission between the mobile communication terminal and the another communication terminal among the plurality of relay apparatuses, based on the relay apparatus management data; and a message control part that causes the messaging server to perform processing of transmitting an inquiry message containing an inquiry about a possibility of movement to a coverage area of the alternative relay apparatus to the mobile communication terminal, and processing of transmitting a message containing a content of a response message from the mobile communication terminal with respect to the inquiry message to the another communication terminal.