인터넷 텔레포니 서비스가 시장성 있는 기술로 각광받게 되면서, SIP 표준 기술에 대한 관심도 증대되었으며, 미래의 IP기반 멀티미디어 응용 서비스는 SIP 표준 기술을 중심으로 표준화 작업이 진행되고 있는 실정이다. 이러한 특성들은 SIP 표준 기술을 이용한 다양한 응용 서비스 창출을 촉진하고 있으며, 특히 IETF내에서도 SIP를 이용한 IMPP 서비스 표준화에 박차를 가하고 있다. 본 고에서는 SIP기반 IMPP 서비스 표준 기술 동향에 대해 살펴보고, IETF내에서 가장 활발한 활동을 진행하고 있는 SIMPLE 워킹그룹 표준화 동향 및 XCAP 표준 기술에 대해 살펴보고자 한다. 대부분의 사람들은 항상 누군가로부터의 관심을 갈구하기 마련이다. 메신저 서비스의 대화명을 수시로 변경하여 자신의 현재 심리상태를 표현하거나, 미니 홈피 등을 통해 자신의 모습을 드러내는 것은 그러한 사람들의 욕구가 표현된 예라 할수 있다. 향후, 자신의 현재 상태를 표현하는 프레즌스 서비스는 새로운 서비스와 통합된 형태로, 현재보다도 더 많이 우리 생활속에 밀접하게 다가올 것으로 기대된다.
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