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Ç¥ÁعøÈ£ [ÆóÁö] TTAE.IF-RFC4129 ±¸Ç¥ÁعøÈ£
Á¦°³Á¤ÀÏ 2006-12-27 ÃÑÆäÀÌÁö 25
ÇѱÛÇ¥Áظí ISDN »ç¿ëÀÚ ÀûÀÀ(IUA) ÇÁ·ÎÅäÄÝ¿¡¼­ µðÁöÅÐ »ç¼³ ³×Æ®¿öÅ· ½ÅÈ£ ½Ã½ºÅÛ/µðÁöÅ» ¾×¼¼½º ½ÅÈ£ ½Ã½ºÅÛ2(DPNSS/DASS 2) È®Àå
¿µ¹®Ç¥Áظí DPNSS/DASS 2 extensions to the IUA protocol
Çѱ۳»¿ë¿ä¾à º» Ç¥ÁؾÈÀº DPNSS1/DASS2-»ç¿ëÀÚ Àû¿ëºÎ (DUA)¸¦ ¾ð±ÞÇÑ´Ù. DUA´Â SCTP±â¹ÝÀÇ IP¸Á¿¡¼­ Digital Private Networking Signaling System 1(DPNSS1)¿Í Digital Access Signaling System 2(DASS2) ½ÅÈ£¸Þ½ÃÁö¸¦ backhaulingÇϱâÀ§ÇØ Á¤ÀǵǾú´Ù. º» Ç¥ÁØÀº RFC 3057 IUA¿¡ DPNSS1/DASS2¸¦ À§ÇØ Ãß°¡ÇÏ´Â »çÇ×À¸·Î ±¸¼ºµÈ´Ù. BTNR 188¿¡ ±Ç°íµÈ DPNSS1´Â »ç¼³¸Á¿¡¼­ PBX¿Í ¿¬µ¿Çϱâ À§ÇØ »ç¿ëÇÏ°í BTNR 190¿¡ ±Ç°íµÈ DASS2´Â PSTN¸Á¿¡¼­ PBX¿Í ¿¬µ¿Çϱâ À§ÇØ »ç¿ëÇÑ´Ù. ÀÌ ÇÁ·ÎÅäÄÝÀº Signaling Gateway(SG)°¡ Ç¥ÁØ DPNSS L2 ÀÎÅÍÆäÀ̽º¸¦ ÅëÇØ DPNSS L3½ÅÈ£¸Þ½ÃÁö¸¦ ¼ö½ÅÇÒ °æ¿ì SG¿Í Media Gateway Controller(MGC)°£¿¡ »ç¿ëÇϱâ À§ÇÔÀÌ´Ù. MGC´Â DPNSS L2 ÀÎÅÍÆäÀ̽º¸¦ ÀÌ¿ëÇØ Á¦°øµÇ´Â PBX È£¸¦ IP¸Á¿¡¼­ Á¦¾î °¡´ÉÇÏ¿© ±âÁ¸ PSTN¸ÁÀÇ Local Exchange(LE)¸¦ ´ëüÇÏ°í ±âÁ¸ °íºñ¿ëÀÇ È¸¼±¸ÁÀ» IP±â¹ÝÀÇ ÆÐŶ¸ÁÀ¸·Î MigrationÇϱâ À§ÇÔÀÌ´Ù.
¿µ¹®³»¿ë¿ä¾à This document describes DPNSS1/DASS2-User Adaptation Layer (DUA). DUA defines a mechanism for the backhauling of DPNSS1/DASS2 message over IP using Stream Control Transmission Protocol(SCTP). This document describes the extensions of the ISDN User Adaptation(IUA) Layer Protocol defined in RFC 3057 for supporting DPNSS1/DASS2. DPNSS 1, specified in BNTR 188, is used to interconnect Private Branch Exchanges(PBX) in a private network and DASS 2, specified in BTNR 190, is used to connect PBXs to the PSTN. This protocol may be used between a Signaling Gateway(SG) and a Media Gateway Controller(MGC) in case that the SG receives DPNSS L3 signaling message over a standard DPNSS L2 interface. So, MGC can control the PBX access call over a DPNSS L2 interface without the Local Exchange(LE) of the legacy PSTN. It is for migrating from the high-cost legacy circuit network to the IP-based packet network.
±¹Á¦Ç¥ÁØ IETF RFC 4129
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