Station number portability
US4754479A · kind A · utility
138Cited by
7References
15Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Sep 17, 1986 |
| Grant date | Jun 28, 1988 |
| Priority date | — |
| Expiry date | Sep 17, 2006 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2213/13395
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An arrangement is disclosed for providing station number portability to stations ported from an original switching node to a new switching node which allows the ported station to maintain its original assigned station number. A ported station retains its original assigned number when it's original and new node have a common data base. The common data base identifies what station number is currently associated with which node. The station can be ported from one node to another node by altering the data base to indicate the new association of the ported number and the node to which the station has been ported.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.