000 00313nam a2200133Ia 4500
008 221231s9999 xx 000 0 und d
100 _aCollins,Daniel
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245 0 _acarrier grade voice over IP
260 _bTata McGraw-Hill
260 _c2003
300 _a522
650 _aGeneral
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942 _cBE_BK
999 _c3981
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