000 00263nam a2200121Ia 4500
100 _aUyless Black
020 _a0-13-022463-4
942 _cBK
245 _aVoice over IP
260 _aPrentice Hall, New Jersey
_cc2000
082 _a004.6 Bla
300 _axxi,330p
999 _c22456
_d22456