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Ç¥ÁعøÈ£ TTAS.KO-05.0004 ±¸Ç¥ÁعøÈ£ KCS 4('92)
Á¦°³Á¤ÀÏ 1990-06-08 ÃÑÆäÀÌÁö 17
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¿µ¹®Ç¥Áظí KEYPHONE STANDARD
Çѱ۳»¿ë¿ä¾à ÀÌ Ç¥ÁØÀº ±¹³» Å°ÆùÀüÈ­½Ã½ºÆÀÀÇ Ç°Áú ¹× ¾ÈÀü¼ºµîÀ» ±ÔÁ¤ÇÑ ´Üü Ç¥ÁØÀÌ´Ù.
¿µ¹®³»¿ë¿ä¾à THIS STANDARD SPECIFIES THE QUALITY AND SECURITY REQUIREMENTS FOR KEYPHONE SYSTEMS.
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