Multiplex communications – Pathfinding or routing – Combined circuit switching and packet switching
Reexamination Certificate
2007-09-11
2007-09-11
Nguyen, Chau (Department: 2616)
Multiplex communications
Pathfinding or routing
Combined circuit switching and packet switching
C370S401000, C709S227000
Reexamination Certificate
active
09908578
ABSTRACT:
A network-enabled user interface device, for example a VoIP telephony device that serves as a Voice over IP endpoint, includes an executable presence resource configured for establishing and maintaining presence information for a user of the user interface device. The presence resource outputs the presence information to at least one selected destination, enabling other user interface devices on the network to detect the presence information for the user relative to the user interface device. The presence resource also is configured for retrieving presence information for other network subscribers, enabling the user interface device to select available services based on the retrieved presence information. Moreover, user interface device may present selected services or network subscriber data to the user based on the retrieved presence information, enabling the user to determine appropriate operation to perform based on the retrieved presence information.
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Cisco Technology Inc.
Juntima Nittaya
Nguyen Chau
Turkevich Leon R.
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