公开(公告)号：EP2020138B1

公开(公告)日：2010-10-20

申请号：EP07776455.3

申请日：2007-04-30

Applicant: LUCENT TECHNOLOGIES INC.

Inventor： DOUGLAS, John ,  GHOSH, Subhashish ,  KOLKA, Vickie, Lynn ,  VAN LEEUWEN, Martin, Henry

IPC: H04L29/06

CPC classification number: H04Q3/005 ,  H04L29/1216 ,  H04L61/157 ,  H04L65/1016

公开(公告)号：EP2020138A1

公开(公告)日：2009-02-04

申请号：EP07776455.3

申请日：2007-04-30

Applicant: LUCENT TECHNOLOGIES INC.

Inventor： DOUGLAS, John ,  GHOSH, Subhashish ,  KOLKA, Vickie, Lynn ,  VAN LEEUWEN, Martin, Henry

IPC: H04L29/06

CPC classification number: H04Q3/005 ,  H04L29/1216 ,  H04L61/157 ,  H04L65/1016

Abstract: An apparatus and method for number portability for an IMS network. In one example the method may have the steps of: processing all calls with E.164 numbers in a BGCF (Breakout Gateway Control Function); executing digit analysis on a respective E.164 number in the BGCF; and querying, by the BGCF, a NPDB (portable number database) to retrieve a routing number if the respective E.164 number is ported.