å ±éç·ä¿¡å·No.7 (è±: Common Channel Signaling System No.7ãSS7) ã¯ãä¸çåå°ã®å ¬è¡äº¤æé»è©±ç¶²ã§ä½¿ããã¦ããé»è©±ç¶²ç¨ã®ã·ã°ããªã³ã°ã»ãããã³ã«ã§ããã æ¥æ¬ã®éä¿¡æ¥çã§ã¯åã«SS7ï¼ã¨ã¹ã¨ã¹ã»ãã³ï¼ãããã¯No.7ï¼ãã³ãã¼ã»ãã³ï¼ãNo.7ï¼å ±éç·ï¼ä¿¡å·æ¹å¼ãªã©ã¨ãå¼ã°ããã 主ã«é»è©±ããããã¨ãã¨åãã¨ãã®å¶å¾¡ä¿¡å·ã®ããåããè¦å®ãã¦ãããä»ã«ããçºä¿¡è çªå·ã®éç¥ãããªãã¤ã課éãã·ã§ã¼ãã¡ãã»ã¼ã¸ãµã¼ãã¹ (SMS) ãªã©ã®å種ãµã¼ãã¹ãæä¾ããããã®ä»æ§ãè¦å®ããã¦ãããSS7ã®ä¿¡å·ã¯é³å£°ç¨éä¿¡è·¯ã¨ã¯å¥ã®å ±éç·ä¿¡å·ç¨éä¿¡è·¯ãéãã¦éåä¿¡ãããã åç±³ã§ã¯ãCCSS7 (Common Channel Signaling System 7) ã¨ãå¼ã¶ãã¨ã¼ããããç¹ã«ã¤ã®ãªã¹ã§ã¯ C7 (CCITT number 7)ãnumber 7ãC
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