Patent · US Active

Apparatus and method of explicit indication of call from emergency call centre

US7991383B2 · kind B2 · utility

2Cited by

16References

22Claims

0Family size

Assignee

RESEARCH IN MOTION LIMITED · CA

Inventors

M. Khaledul Islam · Ottawa, CA
William Daniel Willey · San Francisco, US
Luis Estable · Gatineau, CA

Key dates

Filing date	Jan 29, 2008
Grant date	Aug 2, 2011
Priority date	—
Expiry date	Mar 30, 2029

Classification

Technology area (CPC H)Electricity
CPC primaryH04W64/00
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

A method of identifying an emergency call received on a mobile device includes receiving a call from an emergency call center. In association with the call, an emergency signal is received, indicating that the call is an emergency call. Information is displayed on the mobile device to identify the emergency call.

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