The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 27, 2005
Filed:
Jun. 21, 2002
Akhtar Akhteruzzaman, Naperville, IL (US);
Paul Raymond Sand, Woodridge, IL (US);
Richard Grant Sparber, Wheaton, IL (US);
Claudis L. Young, Aurora, IL (US);
Akhtar Akhteruzzaman, Naperville, IL (US);
Paul Raymond Sand, Woodridge, IL (US);
Richard Grant Sparber, Wheaton, IL (US);
Claudis L. Young, Aurora, IL (US);
Lucent Technologies Inc., Murray Hill, NJ (US);
Abstract
A method of preserving or gracefully concluding wireless calls that are dropped when service is interrupted in a wireless communication system () (e.g., due to poor RF coverage). When a mobile unit () encounters a service interruption during a call, an announcement () is played inviting remaining participating unit(s) to hold. After a predetermined waiting time (), if service is not re-established to the mobile unit, the remaining unit(s) are invited () to leave a message (e.g., voice mail) for the mobile unit and connected () to a messaging system (). After message(s) are concluded, the call is ended () or optionally, lo continued () if there is more than one remaining unit. If service is recovered before the waiting time expires, a service recovery announcement is provided () to the remaining unit(s) and the call continues ().