00488nam a2200157Ia 4500008004100000100002600041245002200067250000600089260002600095260000900121300000800130650002800138942001000166952013900176999001500315221231s9999    xx            000 0 und d  aBellany, John C95617 0aDigital Telephony  a3  bJohn  Wiley and Sons  c2008  a643  aTelecommunication95618  cBE_BK  00104070aAITbAITd2015-06-24eMega Booksg369.00l0pBE12052r2022-12-31v369.00w2022-12-31yBE_BKzTelecommunicationB1900-01-01  c4114d4114