Rerouting an incoming call to a ported telecommunications terminal
US5953663A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 25, 1996 |
| Grant date | Sep 14, 1999 |
| Priority date | — |
| Expiry date | Sep 25, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2213/13547
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An incoming call towards a ported telecommunications terminal is routed to the donor telecommunications node associated with the dialed directory number without first performing a number portability database (NP-DB) query. Upon determining that the telecommunications terminal associated with the specified called party directory number has been ported, a signal querying the NP-DB is transmitted by the donor node. In response, the NP-DB provides a network address representing the gaining telecommunications node to the next-to-last (N-1) switch. Utilizing the received network address, the N-1 switch releases the first call connection with the donor telecommunications node and reroutes the call connection to the gaining telecommunications node associated with the received network address.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.