Archana P Vohra

US Patent:

20040266468, Dec 30, 2004

Filed:

Jun 30, 2003

Appl. No.:

10/610285

Inventors:

Marshall Brown - Chicago IL, US
David Brenner - Arlington Heights IL, US
Thaveesak Kraisornsuthasinee - Chicago IL, US
Jennifer Lee - Chicago IL, US
Ling Li - Vernon Hills IL, US
Archana Vohra - San Diego CA, US
William Zuckerman - Skokie IL, US

International Classification:

H04Q007/20

US Classification:

455/518000

Abstract:

A wireless communications terminal that communicates in a communications infrastructure including opening a push-to-talk (PTT) contact list application () on the terminal when the terminal is in a dormant state, for example, by pressing a PTT input at least once, and transitioning the terminal from the dormant state to an active state when the PTT contact list application is opened. Other PTT features include indicating whether PTT contacts in the contact list are available for a PTT call, and indicating which PTT call participant is talking, among other PTT features.