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Ç¥ÁعøÈ£ TTAE.IF-RFC5057 ±¸Ç¥ÁعøÈ£
Á¦°³Á¤ÀÏ 2009-12-22 ÃÑÆäÀÌÁö 31
ÇѱÛÇ¥Áظí SIP¿¡¼­ ´ÙÁß ´ÙÀ̾ó·Î±× »ç¿ë¹æ¹ý
¿µ¹®Ç¥Áظí Multiple Dialog Usages in the Session Initiation Protocol
Çѱ۳»¿ë¿ä¾à SIP ¿¡¼­ÀÇ ¸î¸î ¸Þ¼Òµå´Â ¾ç ³¡´Ü »çÀÌ¿¡ ´ÙÀ̾ó·Î±×¶ó°í ºÒ¸®´Â °ü°è¸¦ »ý¼ºÇÒ ¼ö ÀÖ´Ù. ÀÌ ¸Þ¼Òµå ÁßÀÇ ÀϺδ ÀÌ¹Ì Á¸ÀçÇÏ´Â ´ÙÀ̾ó·Î±×¿Í´Â ´Ù¸£Áö¸¸ ¿¬°üµÇ¾î ÀÖ´Â °ü°è¸¦ ¸¸µé ¼ö ÀÖ´Ù. ÀÌ·± ´ÙÁß °ü·Ã ¶Ç´Â ´ÙÀ̾ó·Î±× »ç¿ëÀº ±×°ÍµéÀÌ µ¶¸³ÀûÀÎ »ý¸í Áֱ⸦ °®°í ÀÖÁö¸¸ °øÅëµÈ ´ÙÀ̾ó·Î±× »óŸ¦ °øÀ¯Çϱ⠶§¹®¿¡ ÁÖÀDZí°Ô ó¸®ÇÏ´Â °ÍÀÌ ÇÊ¿äÇÏ´Ù. ´ÙÁß ´ÙÀ̾ó·Î±× »ç¿ëÀ» ¿Ã¹Ù¸£°Ô ó¸®ÇÏ´Â °ÍÀº ¿Ïº®ÇÏ°Ô ÆľǵÇÁö´Â ¾Ê¾Ò´Ù. ÆľÇÇÑ ³»¿ëÀº ±¸ÇöÇϱ⠾î·Æ´Ù´Â »ç½ÇÀÌ´Ù. ÀÌ ¸Þ¸ð´Â ´ÙÁß ´ÙÀ̾ó·Î±× »ç¿ëÀº ÇÇÇØ¾ß ÇÑ´Ù´Â »ç½ÇÀ» ÁÖÀåÇÏ°í ÀÖ´Ù. ÇÇÇÒ¼ö ¾ø´Â °æ¿ì¿¡ »ç¿ë°¡´ÉÇÑ ´ë¾È ¹× ÇÊ¿äÇÑ ¿ä¼Òµé¿¡ ´ëÇÏ¿© ³íÀÇÇÏ°í ÀÖ´Ù.
¿µ¹®³»¿ë¿ä¾à Several methods in the Session Initiation Protocol (SIP) can create an association between endpoints known as a dialog. Some of these methods can also create a different, but related, association within an existing dialog. These multiple associations, or dialog usages, require carefully coordinated processing as they have independent life-cycles, but share common dialog state. Processing multiple dialog usages correctly is not completely understood. What is understood is difficult to implement. This memo argues that multiple dialog usages should be avoided. It discusses alternatives to their use and clarifies essential behavior for elements that cannot currently avoid them.
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