RADIO COMMUNICATION SYSTEM, MANAGEMENT SERVER, RADIO COMMUNICATION TERMINAL, AND RADIO COMMUNICATION METHOD

摘要

A SIP server 200 according to a present invention includes: a judgment unit 205 configured to specify an application executed by a mobile station transmitting INVITE (halfway participation) on the basis of INVITE (halfway participation) received from the mobile station, and to judge whether an application which is being executed in the group call (active application) matches the application executed by the mobile station transmitting INVITE (halfway participation); and a SIP information transmitter 206 configured to notify the mobile station transmitting INVITE (halfway participation) of the active application when judged that the active application is different from the application executed by the mobile station transmitting INVITE (halfway participation).