Patent ID: 9392040
Filing Date: 2016-07-12
CPC Classification: H04L

Claim Text:
1. A communication management system, comprising: a memory that stores candidate counterpart terminal information for one or more of a plurality of communication terminals, which are each a first type of communication terminal configured to transmit content data using a first communication protocol, the candidate counterpart terminal information for at least one communication terminal of the one or more of the plurality of communication terminals including identification information of multiple candidate counterpart terminals which are allowed to have a communication session with the at least one communication terminal, wherein the type of identification information used to identify each of the multiple candidate counterpart terminals depends on the type of candidate counterpart terminal, wherein the available types of identification information includes at least terminal identification information and address information; the terminal identification information being used in the candidate counterpart terminal information to identify the first type of communication terminal that communicates using the first communication protocol and being used by the communication management system in authenticating the first type of communication terminal, the address information being used in the candidate counterpart terminal information to identify a second type of communication terminal that communicates using a second communications protocol different than the first communications protocol, the address information being different than the terminal identification information being assigned to the first type of communication terminal that communicates using the first communications protocol, a memory that stores session information, the session information including session identification information for identifying a communication session carried by at least a first communication terminal and a second communication terminal, each being the first type of communication terminal, of the plurality of communication terminals based on terminal identification information of the first and second communication terminal stored in the memory, and terminal identification information of at least the first and second communication terminals carrying the communication session, in association with each other; a receiver that receives a session start determination request that requests to determine whether to start a communication session with a third communication terminal, which is the second type of communication terminal, using the second communication protocol from a conversion system, the conversion system capable of converting between the first communications protocol and the second communications protocol in relaying content data, the session start determination request including 1) address information of the third communication terminal, and 2) session identification information for identifying the communication session being carried by the first and second communication terminals; circuitry configured to: a transmitter that transmits a response indicating to start a communication session with the third communication terminal based on a determination result indicating that the address information of the third communication terminal matches one of the obtained address information, to the conversion system in response to the session start determination request.