00478cam a22001572  4500001001100000005001700011008004100028020002600069040001500095100003100110245006300141250001300204260003300217300001600250650005400266000000707220151217152021.0071112s         xx           000 0 eng d  a812241950x :cKES 495  aKABUcKABU1 aGnanasivam, P.@000015811810aTelecommunication switching and networks /cP. Gnanasivam.  a2nd  ed.  aNew Delhi :bNew Age,c2006.  aiv, 324  p. 0aTelecommunicationxSwitching systems.@0000158119