Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Reexamination Certificate
2011-04-26
2011-04-26
Edouard, Patrick N (Department: 2617)
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
C455S456400, C455S404200, C455S414200, C455S432100, C455S433000, C709S220000, C370S338000
Reexamination Certificate
active
07933608
ABSTRACT:
A method for providing presence gateway functionality includes deriving presence information for subscribers in a first set of subscribers based on telecommunications signaling messages. The first set of subscribers includes at least one subscriber who is not a subscribed-to presentity. The method also includes determining whether presence status information for a subscriber in the first set of subscribers has changed. In response to detecting a change in presence status, it is determined whether the subscriber is a subscribed-to presentity. If the subscriber is a subscribed-to presentity, a presence server is notified of the change in status of the subscriber.
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Baldwin Patricia A.
Defenderfer Joe E
Kennedy, Jr. Richard Nolan
Ravishankar Venkataramaiah
Schaedler Richard E.
Casca Fred A
Edouard Patrick N
Jenkins Wilson Taylor & Hunt, P.A.
Tekelec
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