000 00394nam a2200181Ia 4500
100 _aViswananthan/T
650 _aTelecommunication
250 _a2
942 _cBK
366 _f25
654 _atelecommunication
245 _aTelecommunication switching systems and networks
260 _bprentice hall
_c2015
082 _bVIS
300 _a620
546 _aENGLISH
999 _c33359
_d33359