000 00295nam a2200109Ia 4500
008 220610s9999||||xx |||||||||||||| ||und||
020 _a9781555583323
100 _aRansome, James F.; Rittinghouse, John W.
245 0 _aVoIP security
260 _aAmsterdam ; Boston
_bElsevier
_c2005
942 _yBK
999 _c18506
_d18506