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Background Requirements shown in this draft are based on the draft report from the Ministry of Internal Affairs and Communications (MIC). http://www.soumu.go.jp/joho_tsusin/eng/Releases/Telecommunications/news050128_7.html This report focuses on VoIP especially, because the IP telephony service with E.164 number has spread rapidly as an alternative to PSTN telephone. Video, text, data etc. are still further study. Citizen’s point of view: Emergency call of IP telephony services should be equivalent to the traditional emergency call, 110 for the police, 118 for the coast guard, and 119 for fire and ambulance. Emergency call acceptance organization’s point of view: It should be easy to migrate from the existing system to IP telephony system. And IP telephony environment should provide the same functionalities as the PSTN environment. |