Emergency call handling in a voice-over-packet environment
US7801282B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 12, 2006 |
| Grant date | Sep 21, 2010 |
| Priority date | — |
| Expiry date | Jun 16, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M2242/14
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A network element for use in a network that provides voice-over-packet services to a plurality of communication devices, each of the communication devices being associated with a respective directory number. The network element comprises an interface connectable to a trunk group dedicated to emergency calls and a control entity. The control entity is operable to: receive an incoming call originated by one of the communication devices; determine the directory number associated with the communication device having originated the incoming call; and determine whether the incoming call is an emergency call. Responsive to the incoming call being an emergency call, the control entity obtains a routing key that had been stored in association with the directory number; and directs the incoming call and the obtained routing key via the interface towards a gateway, the gateway connecting the network element to a dedicated emergency network.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.