000 00455nam a2200193Ia 4500
008 220901s9999 xx 000 0 und d
041 _a  ENGLISH
082 _a621.389.389
082 _bCOL
100 _aCOLLINS, DANIEL
245 0 _aCARRIER GRADE VOICE OVER IP.
250 _a2nd ed.
250 _b2003
260 _aNEW DELHI
260 _bTATA MCGRAW-HILL PUB. CO. LTD.
300 _a522
650 _a  VOICE OVER IP
942 _cREF
999 _c134490
_d134490