公开(公告)号：JP2001157241A

公开(公告)日：2001-06-08

申请号：JP2000304526

申请日：2000-10-04

Applicant: LUCENT TECHNOLOGIES INC

Inventor： LOPETZ ISMAEL ,  RICHARD ROBERT BOLAND ,  PATRICK JOSEPH BOYLE ,  MARK ALAN MCCORMIC ,  SALVATORE SUERO

IPC: H04M3/42 ,  H04M3/533 ,  H04W4/12 ,  H04Q7/06

Abstract: PROBLEM TO BE SOLVED: To retrieve a voice mail from a mobile station during roaming. SOLUTION: When a call is sent from a public telephone exchange network 102 to a mobile station 108 of a mobile electric communication system 100, a ground system sets a path of the call to a proper exchange component 104 in a mobile system. The exchange component 104 transfers a dialed number to a registration component 106 to which the mobile station is assigned with other information to make a request of transfer information of the mobile station 108. The registration component 106 returns the transfer information to the exchange component 104. A serving system 105 includes a database in the registration component 106 and the database includes the relation between the identifier of the mobile station and the directory number of the mobile station.