000			00616nam a2200217Ia 4500
001			29480
005			20250221152815.0
008			250214s9999||||xx |||||||||||||| ||und||
020			_a876927134
100			_aThiagarajan Viswanathan
245		0	_aTelecommunication switching systems and networks
260			_aNew Delhi
260			_bPrentice-Hall
260			_c1992
300			_axx, 583p.
500			_aIncludes index
650			_aOptical fiber communication
650			_aSwitching systems -- Strowger, Crossbar, Time division
650			_aTelecommunication -- (Telephone) -- Networks
942			_cBK
999			_c45323 _d45323