00371    a2200121   4500020001500000082001700015100001700032245008700049260004500136300002300181650002300204700002200227  a8129709570  a621.395bKAZ  aKaza, Ramesh  aCisco IP telephonyb Planning, design, implementation, operation, and optimization  aNew DelhibPearson Educationc2005g2005  axxiii, 648p.c25cm  aCisco IP telephony  aAsadullah, Salman