COMMUNICATION SYSTEM, FEMTO BASE STATION, CALL SESSION CONTROL SERVER, HOME SUBSCRIBER SERVER, COMMUNICATION METHOD, AND PROGRAM

摘要

A communication system of the present invention is a communication system connected to a public communication network including emergency organization communication apparatus (14), the communication system includes femto base station (2) wirelessly connected to wireless terminal (1), wherein femto base station (2) includes a first communication controller that attaches first location information, which is information for identifying a location of femto base station (2) or for identifying a location of an assembly of a plurality of base stations including femto base station (2), to a SIP message in order to notify the first location information to emergency organization communication apparatus (14) when there is a call from wireless terminal (1), and transmits the SIP message to another apparatus.