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ÇѱÛÁ¦¸ñ(Korean Title) |
7°¡Áö »óŸ¦ ÀÌ¿ëÇÑ SIP ÀÎÅÍ³Ý ÀüÈ¿¬°á ½Ã½ºÅÛ ¼³°è ¹× ±¸Çö |
¿µ¹®Á¦¸ñ(English Title) |
Design and Implementation of SIP Internet Call-setup System using Seven States |
ÀúÀÚ(Author) |
½Å¿ë°æ
±è»ó¿í
|
¿ø¹®¼ö·Ïó(Citation) |
VOL 13 NO. 05 PP. 0300 ~ 0310 (2007. 10) |
Çѱ۳»¿ë (Korean Abstract) |
SIPÀº IP ÀüÈ Åë½Å¿¡¼ Åë½Å ¼Â¾÷À» À§ÇØ »ç¿ëµÇ´Â ÁÖ¿ä ÇÁ·ÎÅäÄÝ Áß Çϳª´Ù. SIPÀ» ÅëÇÑ Åë½ÅÀº »ç¿ëÀÚ ¿ä±¸¿¡ µû¶ó ´Ù¾çÇÑ »óÅ°¡ ÇÊ¿äÇÏ´Ù. º» ³í¹®Àº ±âÁ¸ÀÇ SIP ÇÁ·ÎÅäÄÝÀ» ÀÌ¿ëÇÏ¿© ÀüÈ¿¬°á ½Ã »ç¿ëÀÚÀÇ ¿ä±¸¿¡ µû¶ó ¼ö½Ã·Î º¯ÇÏ´Â »óŸ¦ 7°¡Áö·Î Á¤ÀÇÇÏ°í, °´Ã¼ ÁöÇâÀûÀÎ ½Ã½ºÅÛ ¼³°è¿¡ µû¶ó °¢ »óŸ¦ ÀüÀÌÇÏ´Â À̺¥Æ®¸¦ µÎ¾î °³¹ßÀÚ °üÁ¡¿¡¼ SIP ÇÁ·ÎÅäÄÝÀ» ÀÌ¿ëÇÑ »õ·Î¿î ÀÀ¿ë¼ºñ½º¸¦ °³¹ßÇÏ°íÀÚ ÇÒ ¶§ °´Ã¼ÁöÇâÀûÀÎ ½Ã½ºÅÛ ¼³°è¸¦ ÇÒ ¼ö ÀÖ´Ù. »ó¿ë¸Á¿¡¼ RFC 3261¿¡¼ Á¦½ÃÇÏ´Â Call-Setup°úÁ¤À» µû¶ó ÀÎÅÍ³Ý ÀüÈ¿¬°á ½Ã½ºÅÛÀ» ¼³°èÇÏ¸é ¿¹¿Üó¸® ¹× °ú´ÙÇÑ Æ®·¡ÇÈÀÌ ¹ß»ýÇÏ¿© ½Ã½ºÅÛ ¿À·ù¸¦ ºÒ·¯¿Ã ¼ö ÀÖ´Ù. ÀÌ °æ¿ì¿¡ ½Ã½ºÅÛÀÇ State¸¦ º¸°í ¿¹»óµÈ À̺¥Æ®ÀÏ °æ¿ì Á¤ÇüÈµÈ Ã³¸®·çƾÀ¸·Î ´ëóÇÏ°í, ±×·¸Áö ¾ÊÀ» °æ¿ìµµ ¿¹¿Ü»óȲÀ» È¿À²ÀûÀ¸·Î ó¸®ÇÒ ¼ö ÀÖ´Ù. À̺¥Æ® 󸮷çƾÀº FSMÀ¸·Î ¼³°è ¹× ±¸ÇöÇÏ¿´´Ù. |
¿µ¹®³»¿ë (English Abstract) |
The Session Initiation Protocol (SIP) is one of the major protocols used in call-setup over IP telephony. The SIP-signaled calls use many-sided states according to a request of user. In this paper, we suggest seven states and some events that help developers to design and implement new applications efficiently. And they enable an object-oriented design of the system. If you design the call-setup procedure only by the processing model suggested in RFC 3261 over commercial network, a fatal error may occur in the system because of heavy data traffic or unpredicted exception cases. However, according to the suggested seven states, if they are predefined events in the current system state, the standardized processing routine is executed. Otherwise, they can be processed by the exception routine in system. All event processing routines are designed and implemented using Finite State Machine (FSM). |
Å°¿öµå(Keyword) |
»óÅÂ
SIP
ÀüÈ¿¬°á
FSM
State
SIP
Call-Setup
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ÆÄÀÏ÷ºÎ |
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