System and method for providing dynamic presence information...

Communications: electrical – Condition responsive indicating system – With particular coupling link

Reexamination Certificate

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C340S003700, C340S539230, C455S411000

Reexamination Certificate

active

07746226

ABSTRACT:
A system and method for detecting proximity of at least one outside party to a multi-party communication includes steps of: receiving presence information of the at least one outside party, wherein the presence information comprises sensor data received from at least one sensor indicating that the outside party is in proximity to a second party; analyzing the sensor data to determine its threat level; and transmitting a signal to the first party, the signal indicating that at least one outside party is in proximity to the second party.

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Schulzrinne, Gurbani, Kyzivat and Rosenberg, “RPID: Rich Presence Extensions to the Presence Information Data Format (PIDF),” Jul. 2006.
Day, Rosenberg, and Sugano, “A Model for Presence and Instant Messaging,” Feb. 2000.

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