000 00294nam a2200121Ia 4500
008 220601s2005 xx 000 0 eng d
100 _aBELLAMY,JOHN C.
245 0 _aDIGITAL TELEPHONY
250 _a3rd Ed.
260 _c2005
_aNew Delhi
_bWILEY INDIA PVT LTD
300 _a643
942 _2ddc
_cBTECH
999 _c535
_d535