Method and apparatus for re-establishing a call in a communication system

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 6556816
SERIAL NO

09494267

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

The present invention provides a method and Mobile Switching Center (MSC) for re-establishing a call in a communication system. The MSC receives from a network element a callback request to re-establish a call, such as an emergency call, between the network element and a mobile unit. The callback request includes a callback number. The MSC determines whether the callback number can be used to alert the mobile unit. If the callback number cannot be used to alert the mobile unit, the MSC determines an identification number of the mobile unit. The MSC then alerts the mobile unit by utilizing the identification number of the mobile unit and re-establishes the call on the original call path between the mobile unit and the network element.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

  • LUCENT TECHNOLOGIES INC.;WSOU INVESTMENTS, LLC

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Gafrick, John Matthew Naperville, IL 9 316
Zahnle, Jeffrey Arthur Elburn, IL 7 237

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation