000 00294nam a2200109Ia 4500
008 190914s9999||||xx |||||||||||||| ||und||
100 _aJonathan Davidson
245 0 _aVoice Over IP Fundamentals a Systematic Approach
260 _aCanada
_bTata McGraw Hill
_c2000
300 _a722
942 _cBK
999 _c9733
_d9733