Method and system for obtaining emergency caller location
US8019358B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 17, 2007 |
| Grant date | Sep 13, 2011 |
| Priority date | — |
| Expiry date | Jul 13, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W76/50
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method and system for determining if a phone has changed locations includes a subscriber phone equipment coupled to a phone system through a subscriber access line. The subscriber phone equipment includes a location test module and a datastore. The location test module includes a first subscriber access line identity for the subscriber access line. The datastore includes a first subscriber location for the first subscriber access line identity. The location test module obtains a second subscriber access line identity for the subscriber access line, obtains a second subscriber location for the second subscriber access line identity, and compares the first subscriber location and the second subscriber location. If the first subscriber location does not match the second subscriber location, then the subscriber phone equipment has changed locations. If the first subscriber location matches the second subscriber location, then the subscriber phone equipment has not changed locations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.