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Ç¥ÁعøÈ£ TTAS.KO-01.0075 ±¸Ç¥ÁعøÈ£
Á¦°³Á¤ÀÏ 2005-12-21 ÃÑÆäÀÌÁö 32
ÇѱÛÇ¥Áظí SIP ±â¹Ý ¼¼¼Ç ŸÀÌ¸Ó ÇÁ·ÎÈ­ÀÏ
¿µ¹®Ç¥Áظí Session Timer Profile based on SIP
Çѱ۳»¿ë¿ä¾à ÁÖ¿ä ³»¿ëÀ¸·Î´Â SIP(Session Initiation Protocol)ÀÇ È®ÀåÀ» Á¤ÀÇÇÑ °ÍÀ¸·Î re-INVITE ȤÀº UPDATE ¿äû ¸Þ½ÃÁö¸¦ ÅëÇÏ¿© ÁÖ±âÀûÀ¸·Î SIP ¼¼¼ÇÀ» °»½Å½ÃÅ°±â À§ÇÑ ÀýÂ÷¸¦ ±â¼úÇÑ °ÍÀ̸ç, ÀÌ·¯ÇÑ °»½Å ¿äû ¸Þ½ÃÁö´Â UA(User Agent)¿¡¼­ »ý¼ºÇÏ°í ÇÁ¶ô½Ã ¼­¹ö´Â ¼¼¼ÇÀÌ ¾ÆÁ÷ È°¼ºÈ­ µÇ¾ú´Â°¡¸¦ °áÁ¤ÇÒ ÀÖ´Ù. ÀÌ°ÍÀ» °¡´ÉÇÏ°Ô Çϱâ À§ÇÏ¿© µÎ°³ÀÇ Ãß°¡ Çì´õÀÎ Session-ExpiresÇì´õ¿Í Min-SE Çì´õ°¡ Á¤ÀǵǾú´Ù.
¿µ¹®³»¿ë¿ä¾à This document defines an extension to the Session Initiation Protocol (SIP). This extension allows for a periodic refresh of SIP sessions through a re-INVITE or UPDATE request. The refresh allows both user agents and proxies to determine whether the SIP session is still active. The extension defines two new header fields: Session-Expires, which conveys the lifetime of the session, and Min-SE, which conveys the minimum allowed value for the session timer.
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