00855nam  2200253 k 4500001001300000005001500013008004100028049002800069052001600097056001400113082001700127245008300144260005400227300003100281440004200312504002800354650004700382653007600429700001400505700001400519700001400533949003700547950001700584KMO20041939720040627110401040627s2003    ulka          000   kor  0 lEM3037802lEM3037803c201a567.81b4-1  a567.81240 a621.382222100aVOIP=xVoice on internet protocol/d이연성;e김재우;e김은선 [공저]  a서울:b한국과학기술정보연구원,c2003  avii, 106p.:b삽도;c23cm00a2003 기술산업정보분석;vBA076  a참고문헌: p.105-106 8a음성 통신[音聲通信]0KSH1998017745  aVOIPaVOICEaINTERNETaPROTOCOLa기술산업정보분석a음성통신1 a이연성1 a김재우1 a김은선0 a기술산업정보분석;vBA0761 a가격불명