000 00456nam a2200145Ia 4500
005 20260205062747.0
008 260111s9999||||xx |||||||||||||| ||und||
082 _a621.382 V829T
100 _aViswanathan,Thiagarajan
245 0 _aTelecommunication Switching Systems and Networks
260 _aN.Delhi
_bPHI Learning Private Limited
_c2011
300 _a583p.
690 _aTelecommunication - Switching Systems;Telecommunication Systems
942 _cBK
999 _c175408
_d175408