VoIP 서비스에서 긴급통화 서비스는 사용자 단말의 위치 정보(Location Information)와 사용자 식별번호를 긴급 호에 실어 긴급 대응 센터에 보내는 서비스이다. VoIP 긴급통화 서비스를 위하여 긴급 호발생 시 위치를 획득하여야 하며, 이를 위해 본 논문에서는 RFC 4776기반의 DHCP 옵션 확장하여 VoIP 단말의 위치 정보를 획득하는 방법을 구현하였다.
KSP Keywords
Location information(GPS)
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