Emergency call back through intersystem paging
US7565131B2 · kind B2 · utility
124Cited by
7References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 8, 2005 |
| Grant date | Jul 21, 2009 |
| Priority date | — |
| Expiry date | Apr 19, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W68/12
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In the method, a paging identifier for a wireless unit is obtained using a unique call back identifier for an emergency call placed by the wireless unit in response to an emergency call back. Then, an emergency intersystem page, which provides the paging identifier of the wireless unit and identifies the emergency intersystem page as requesting paging of the wireless unit for an emergency call back, is sent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.