000 00297nam a2200133Ia 4500
942 _cENGBV
520 _aIssue No. 9,11-12
654 _aVoice
654 _aIndia
654 _aTelecommunication
245 _aVoice and India
260 _aNational
_bGupta, Pradeep. New Delhi
_c2002
440 _v8
999 _c40114
_d40114