Patent · US Active

Emergency alert for voice over internet protocol (VoIP)

US7933385B2 · kind B2 · utility

33Cited by

82References

24Claims

0Family size

Assignee

TELECOMMUNICATION SYSTEMS, INC. · US

Inventors

Richard Dickinson · Seattle, US
Don Mitchell · Phoenix, US
Jonathan Croy · Seattle, US

Key dates

Filing date	Aug 23, 2006
Grant date	Apr 26, 2011
Priority date	—
Expiry date	Nov 18, 2029

Classification

Technology area (CPC H)Electricity
CPC primaryH04M2242/14
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

A voice over Internet Protocol (VoIP) positioning center (VPC) is implemented in configuration with support from a text-to-voice module, emergency routing database, and VoIP switching points (VSPs) to allow a public safety access point (PSAP) or other emergency center to effectively communicate the nature of an emergency alert notification and the area of notification to the VoIP positioning center (VPC). The inventive VPC in turn determines which phones (including wireless and/or VoIP phones) are currently in the area for notification, and reliably and quickly issues the required warning to all affected wireless and VoIP phones.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.